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WO2025027337A1 - Matériau destiné à être utilisé en tant que composant pour un article de fourniture d'aérosol - Google Patents

Matériau destiné à être utilisé en tant que composant pour un article de fourniture d'aérosol Download PDF

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Publication number
WO2025027337A1
WO2025027337A1 PCT/GB2024/052041 GB2024052041W WO2025027337A1 WO 2025027337 A1 WO2025027337 A1 WO 2025027337A1 GB 2024052041 W GB2024052041 W GB 2024052041W WO 2025027337 A1 WO2025027337 A1 WO 2025027337A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibres
component
aerosol
regenerated cellulose
range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/GB2024/052041
Other languages
English (en)
Inventor
Rosa GALATI
Andrei GRISHCHENKO
Jack HUMPHREY
Rosie DURMAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nicoventures Trading Ltd
Original Assignee
Nicoventures Trading Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nicoventures Trading Ltd filed Critical Nicoventures Trading Ltd
Publication of WO2025027337A1 publication Critical patent/WO2025027337A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/302—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by natural substances obtained from animals or plants
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
    • A24D3/068—Biodegradable or disintegrable
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17—Filters specially adapted for simulated smoking devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series

Definitions

  • the present invention relates to a material for use as a component for an aerosol provision article.
  • Aerosol generating articles can have a substantially cylindrical rod-shaped structure and can include a charge, roll, or column of smokable material, such as shredded tobacco (e.g. in cut filler form), surrounded by a paper wrapper, thereby forming a rod of aerosolisable material.
  • a filter element aligned in an end-to-end relationship with the rod of aerosolisable material.
  • a filter element comprises a rod of plasticised cellulose acetate tow circumscribed by a paper material known as a plug wrap, and the filter is attached to one end of the rod of aerosolisable material using a circumscribing wrapping material know as tipping material.
  • a material for use as a component in an aerosol provision article comprising a plurality of fibres comprising regenerated cellulose, wherein the material has a bulk density in the range of about 0.1 g/cm3 to about 0.4 g/cm3.
  • the plurality of fibres may have a bulk density in the range of about 0.1 g/cm3 to about 0.3 g/cm3, in some embodiments, the plurality of fibres may have a bulk density in the range of about 0.13 g/cm3 to about 0.18 g/cm3.
  • the plurality of fibres maybe non-continuous. In some embodiments, the plurality of fibres may be hydroentangled.
  • the plurality of regenerated cellulose fibres may have a denier per filament in the range of between about 1 dpf and about 30 dpf. In some embodiments, the plurality of regenerated cellulose fibres may have a denier per filament in the range of between about i dpf and about 20 dpf. In some embodiments, the plurality of regenerated cellulose fibres may have a denier per filament in the range of about 1 dpf to about 10 dpf. In some embodiments, the plurality of fibres may consist of regenerated cellulose and comprise between 90% and 100% of the fibres included within the material by weight.
  • the plurality of fibres may comprise a first plurality of regenerated cellulose fibres and a second plurality of regenerated cellulose fibres, wherein the first plurality of regenerated cellulose fibres may have a denier per filament which is greater than the second plurality of regenerated cellulose fibres.
  • the first plurality of regenerated cellulose fibres may have a denier per filament in the range of about 10 dpf to about 30 dpf and the second plurality of regenerated cellulose fibres may have a denier per filament in the range of about 1 dpf to about 10 dpf.
  • the plurality of regenerated cellulose fibres may comprise in the range of about 60% to about 90%, by weight, of the first plurality of regenerated cellulose fibres and in the range of about 10% to 40%, by weight, of the second plurality of regenerated cellulose fibres.
  • the plurality of fibres may have a fibre length in the range of about 30 mm to about 60 mm. In some embodiments, the largest dimension of the cross-section of each filament may be greater than 10 um.
  • the material may be crimped. In some embodiments, the material may have a crimp depth in the range of about 1 um to about 800 um.
  • the material may be in the form of a sheet or an elongate body of material. In some embodiments, the material may be in the form of a sheet having a weight of 30 to 150 g/m 2 , 30 to 120 g/m 2 or 40 to too g/m 2 . In some embodiments, the material may be in the form of a sheet having a thickness of between 60 and 500 pm or between 150 and 350 pm. In some embodiments, the material may be in the form of a sheet having a bulk density of 0.2 to 0.3 g/cm3 O r 0.22 to 0.28 g/cm3.
  • the material may be in the form of a non-woven sheet which is gathered to form a rod-shaped element, optionally wherein the non-woven sheet is uncrimped and non-pleated when gathered to form the rod-shaped element.
  • the material may be in the form of a plurality of non-woven sheets which are gathered to form a rod-shaped element, optionally wherein the plurality of non-woven sheets are uncrimped and non-pleated when gathered to form the rod-shaped element.
  • the material is in the form of a sheet. In some embodiments, the material may be in the form of a non-woven sheet. In some embodiments, the material may be in the form of a pleated sheet, optionally a non-woven sheet. In some embodiments, the material may be in the form of a pleated, non-woven sheet. In some embodiments, the material may be in the form of a pleated non-woven sheet.
  • the sheet may have a basis weight in the range of about 30 gsm to about 120 gsm. In some embodiments, the sheet may have a width in the range of about 50 mm to about 200 mm. In some embodiments, the sheet has a width in the range of about 50 mm to about 200 mm, optionally in the range of about 50 mm to about 120 mm.
  • the material may be in the form of an elongate body of material having a bulk density of 0.1 to 0.3 g/ cm3 O r 0.14 to 0.22 g/ cm3, in some embodiments, the elongate body of material may comprise the plurality of fibres extending longitudinally through said body from a first end to a second end of the body. In some embodiments, the elongate body of material may comprise a rod-shaped element having a circumferent of between about 16 mm and about 25 mm, or between about 18 mm and about 23 mm.
  • the material may further comprise a plasticiser.
  • the plurality of fibres of regenerated cellulose may comprise at least one of viscose, lyocell, rayon, viscose rayon, cupro, and modal.
  • the plurality of regenerated cellulose fibres consist of lyocell fibres. In some embodiments, lyocell fibres may be the only fibres included within the material. In some embodiments, the plurality of regenerated cellulose consist of viscose rayon fibres. In some embodiments, viscose fibres are the only fibres included within the material. In some embodiments, the material may comprise about 5 to about 60 weight % aerosol-former material calculated on a dry weight basis, or between about 15 and about 50 weight % aerosol former calculated on a diy weight basis.
  • the material may comprise an active substance and/or a flavour.
  • a component for use in an aerosol provision article comprises a material according to any one of claim 1 to claim 32.
  • the component may be rod-shaped.
  • the rod-shaped component may have a hardness of about 80% of higher.
  • the component may exhibit a pressure drop in the range of about 1 mmWG per mm of length of the component to about 6.5 mmWG per mm of length of the component.
  • the component may be a filter segment. In some embodiments, the component is an aerosol-generating segment. In another aspect of the present invention, there is provided an aerosol provision article comprising a component according to any one of claim 33 to claim 38.
  • the article may be an article for use in a non-combustible aerosol provision system.
  • an aerosol provision system comprising an aerosol provision article according to claim 39 or claim 40, and a non-combustible aerosol provision device.
  • a method for forming a material suitable for use as a component in an aerosol provision article comprises: providing a plurality of fibres comprising regenerated cellulose; and processing the plurality of fibres to provide a material suitable for use as a component for an aerosol provision article, wherein the material has a bulk density in the range of about 0.1 g/cm3 to about 0.4 g/cm.
  • providing a plurality of fibres may comprise providing a plurality of continuous fibres in the form of a tow and wherein processing the plurality of fibres comprises gathering the plurality of fibres to form an elongate body of material.
  • providing a plurality of fibres may comprise providing a plurality of fibres in the form of a sheet and wherein processing the plurality of fibres comprises gathering the sheet to form an elongate body of material.
  • Fig. 1 shows a schematic perspective view of a material for use as a component
  • Fig. 2 shows a schematic perspective view of a component for use in an aerosol provision article
  • Fig. 3 shows a schematic perspective view of an aerosol provision article
  • Fig. 4 shows a schematic exploded view of an aerosol provision article
  • Fig. 5 shows a schematic view of an aerosol delivery device
  • Fig. 6 shows a schematic perspective cut-away view of a component
  • Fig. 7 shows a schematic perspective view of a material
  • Fig. 8 shows a component for an aerosol provision article
  • Fig. 9 shows a schematic cross-sectional view of a component
  • Fig. 10 shows a cross-sectional view of an aerosol provision article
  • Fig. 11 shows a cross-sectional view of an aerosol provision article
  • Fig. 12 shows a cross-section view of an aerosol provision article
  • Fig. 13 shows a perspective view of an aerosol provision article
  • Fig. 14 shows a schematic view of a component making apparatus
  • Fig. 15 shows a schematic view of an aerosol provision article
  • Fig. 16 shows a schematic view of an aerosol provision article
  • Fig. 17 shows a schematic view of an aerosol provision article
  • Fig. 18 shows a schematic view of an aerosol provision article
  • Fig. 19 shows a schematic view of an aerosol provision article
  • Fig. 20 shows a schematic view of an aerosol provision article
  • Fig. 21 shows a schematic view of a material for a component for an aerosol provision article.
  • a material 1 for use as a component 2, shown in Fig. 2, in an aerosol provision article 3, shown in Fig. 3, is shown.
  • a material 1 comprising a plurality of fibres 5.
  • the plurality of fibres 5 comprise fibres of regenerated cellulose.
  • the material 1 has a bulk density in the range of about 0.1 g/cm3 to about 0.40 g/cm3.
  • the plurality of regenerated cellulose fibres 5 may be non-continuous fibres.
  • the plurality of fibres may be hydroentangled.
  • the bulk density of the plurality of fibres 5 of regenerated cellulose may be calculated without taking into account any other features of the material 1, or component 2 or article 3 when the material 1 is formed into a component 2 or article 3, such as wrapping material, aerosol generating material, aerosol-modifying components, or other components.
  • the material 1 may have a bulk density in the range of about 0.10 g/cm3 to about 0.40 g/cm3, in some embodiments, the material 1 may have a bulk density in the range of about 0.10 g/cm3 to about 0.30 g/cm3, in some embodiments, the material 1 may have a bulk density in the range of about 0.13 g/cm3 to about 0.18 g/cm3, in some embodiments, the material 1 may have a bulk density of about 0.15 g/cm3 to about 0.17 g/cm3.
  • the bulk density of the material i can be tailored to provide the user with a satisfactory pressure drop when the material is formed into a component 2 for use as or in an article 3. Furthermore, reduction of the bulk density of the material 1 improves cost efficiencies and material usage, and therefore reduces manufacturing effects on the environment.
  • the plurality of fibres 5 have been previously described as comprising regenerated cellulose, it may be the case that the plurality of fibres 5 forming the material 1 consist of or essentially consist of regenerated cellulose fibres.
  • the component 2 formed from the filter material 1 formed from fibres 5 of regenerated cellulose may be a filtration component.
  • the material 1 maybe considered a filtration material.
  • the component 2 formed from the material 1 formed from fibres 5 of regenerated cellulose may be a component other than a filtration component.
  • the component 2 formed from the material 1 may be included in an aerosol provision article 3 to help achieve the required pressure drop across the aerosol provision article 2.
  • the material 1 may be provided in the form of a non-woven sheet-like material.
  • the non-woven sheet may comprise the plurality of non-continuous fibres 5 therein.
  • the material 1 may be gathered into any required form to form the component 2.
  • the component 2 may form a filter segment and/or an aerosol generating section of an article 3 that may be configured to be heated to release aerosol by, for example, an aerosol generating device.
  • the plurality of regenerated cellulose fibres 5 may beneficially provide increased biodegradability when compared to the types of fibres normally used in, for example, the filter segments of conventional cigarettes, e.g. such as cellulose acetate.
  • the plurality of regenerated cellulose fibres 5 may be the only types of fibre present in the material 1. That is, the plurality of fibres 5 in the material 1 may consist of regenerated cellulose fibres.
  • the term ‘fibre’ may be defined as a basic element of textiles.
  • the filter materials of the present invention may include any of the disclosed fibres 5 individually or in combination with one of more other fibre inputs.
  • the fibres may be in the form of a rope-like or string-like element.
  • the term ‘fibre’ is intended to include fibres, filaments, and the like.
  • Regenerated cellulose may be considered to be a class of materials that is manufactured by the conversion of natural cellulose to a soluble cellulosic derivative or direct dissolution of cellulosic pulp and subsequent regeneration via wet-spinning process. Therefore, regenerated cellulose fibres may be considered to be a class of materials that is manufactured by the conversion of natural cellulose to a soluble cellulosic derivative or direct dissolution of cellulosic pulp and subsequent regeneration in fibre form.
  • regenerated cellulose fibres are a pure form of cellulose whilst the cellulose acetate fibres are a modified form of cellulose that is modified by the addition of acetyl groups to the cellulose polymer.
  • Regenerated cellulose fibers are typically prepared by extracting non-cellulosic compounds from wood, contacting the extracted wood with caustic soda, followed by carbon disulfide and then by sodium hydroxide, giving a viscous solution by direct dissolution of high purity cellulose pulp using NMMO. The solution is subsequently forced through spinneret heads to create viscous threads of regenerated fibers.
  • the manner in which the regenerated cellulose is made is not considered to limiting on the scope of the present invention.
  • the plurality of regenerated cellulose fibres 5 may be, for example, but not limited to, viscose, lyocell, rayon, viscose rayon, cupro and modal.
  • the plurality of fibres 5 may consist of regenerated cellulose. In some embodiments, the plurality of fibres 5 may comprise between 90% and 100% of the fibres included within the material, by weight.
  • the plurality of regenerated cellulose fibres 5 consist of lyocell fibres and are the only fibres included within the material 1. In some embodiments, the plurality of regenerated cellulose fibres 5 consist of viscose fibres and are the only fibres included within the material 1.
  • the denier per filament of the plurality of regenerated cellulose fibres 5 may be in the range of 1 to 30 denier per filament (dpf). Denier per filament or denier per fibre is a measurement of the weight per unit length of the individual filaments of the fibres. The denier per filament of the regenerated cellulose fibres is expressed in units of grams/ 9000 meters. The denier per filament may be manipulated or chosen to achieve a desired pressure drop across the material 1 or across a component 2 formed from the material 1, such as a filter element, formed from the plurality of regenerated cellulose fibres 5.
  • the denier per filament of the plurality of regenerated cellulose fibres 5 may be in the range of about 1 dpf to about 20 dpf. In some embodiments, the denier per filament of the plurality of regenerated cellulose fibres 5 may be in the range of about 1 dpf to about 10 dpf.
  • the range of denier per filament for the plurality of regenerated cellulose fibres 5 may be in the range of about 1 dpf to about 8 dpf, or about 1 dpf to about 6 dpf, or about 1 dpf to about 5 dpf, or about 1 dpf to about 4 dpf, or about 1 dpf to about 3 dpf.
  • the range of denier per filament for the plurality of regenerated cellulose fibres 5 may be in the range of about 1.5 dpf to about 10 dpf, or about 1.5 dpf to about 6 dpf, or about 1.5 dpf to about 5 dpf, or about 1.5 dpf to about 4 dpf, or about 1.5 dpf to about 3 dpf.
  • the plurality of regenerated cellulose fibres 5 of the material 1 may comprise a first plurality of regenerated cellulose fibres and a second plurality of regenerated cellulose fibres.
  • the first plurality of regenerated cellulose fibres may have a dpf that is greater than the second plurality of regenerated cellulose fibres.
  • the first plurality of regenerated cellulose fibres may be formed by regenerated cellulose fibres with a denier per filament in the range of about 10 dpf to about 30 dpf.
  • the second plurality of regenerated cellulose fibres may be formed by regenerated cellulose fibres with a denier per filament in the range of about 1 dpf to about 10 dpf.
  • the first plurality of regenerated cellulose fibres 5 may be formed from regenerated cellulose fibres with a denier per filament in the range of about 15 dpf to about 30 dpf and the second plurality of regenerated cellulose fibres 5 may be formed from regenerated cellulose fibres with a denier per filament in the range of about 1 dpf to about 6 dpf.
  • the first plurality of regenerated cellulose fibres 5 may be formed from regenerated cellulose fibres with a denier per filament in the range of about 18 dpf to 27 dpf. In some embodiments, the first plurality of generated cellulose fibres 5 may be formed from regenerated cellulose fibres with a denier per filament in the range of about 20 dpf to about 25 dpf.
  • the second plurality of regenerated cellulose fibres 5 may be formed from regenerated cellulose fibres with a denier per filament in the range of about 1 dpf to about 5 dpf, from about 1 dpf to about 4 dpf, from about 1 dpf to about 3 dpf, or from about 1 dpf to about 2 dpf.
  • the ratio of the first plurality of regenerated cellulose fibres to the second plurality of regenerated cellulose fibres may be in the range of about 90:10 to about 60:40, by weight.
  • the plurality of fibres 5 may comprise in the range of about 60% to about 90%, by weight, of the first plurality of regenerated cellulose fibres and in the range of about 10% to about 40%, by weight, of the second plurality of regenerated cellulose fibres.
  • the material 1 may be formed by about 20% 1.5 dpf regenerated cellulose fibres and 80% 25 dpf regenerated cellulose fibres.
  • the plurality of regenerated cellulose fibres 5 may comprise more than two pluralities of fibres having different deniers per filament.
  • the plurality of regenerated cellulose fibres 5 may comprise a first plurality of regenerated cellulose fibres having a denier per filament of about 5 dpf to about 10 dpf, a second plurality of regenerated cellulose fibres having a denier per filament of about 2 dpf to about 5 dpf, and a third plurality of regenerated cellulose fibres having a denier per filament of less than about 2 dpf.
  • the first plurality of regenerated cellulose fibres 5 may make up in the range of about 30% to about 60% of the material 1 by weight.
  • the second plurality of regenerated cellulose fibres 5 may make up in the range of about 25% to about 30% of the material 1 by weight.
  • the third plurality of regenerated cellulose fibres 5 may make up in the range of about 5% to 20% of the material 1 by weight.
  • the plurality of regenerated cellulose fibres 5 may comprise a first plurality of regenerated cellulose fibres having a denier per filament of about 5.4 dpf, a second plurality of regenerated cellulose fibres having a denier per filament of about 2.7 dpf, and a third plurality of regenerated cellulose fibres having a denier per filament of about 1.4 dpf.
  • the three pluralities of regenerated cellulose fibres may be present in a ratio of 40:40:20, by weight.
  • the plurality of regenerated cellulose fibres 5 may comprise a first plurality of regenerated cellulose fibres having a denier per filament of about 5.4 dpf, and a second plurality of regenerated cellulose fibres having a denier per filament of about 2.7 dpf.
  • the two pluralities of regenerated cellulose fibres may be present in a ratio of 40:60, by weight.
  • the plurality of regenerated cellulose fibres 5 may comprise a first plurality of regenerated cellulose fibres having a denier per filament of about 5.4 dpf, a second plurality of regenerated cellulose fibres having a denier per filament of about 2.7 dpf, and a third plurality of regenerated cellulose fibres having a denier per filament of about 1.4 dpf.
  • the three pluralities of regenerated cellulose fibres may be present in a ratio of 60:30:10, by weight.
  • first and second, and optionally further, pluralities of regenerated cellulose fibres having different denier per filament has been found to improve the tensile strength of the material, which improves the runnability of the material 1 in manufacturing apparatus, such as, for example, filter making machines.
  • the combination of first and second pluralities of regenerated cellulose fibres having different denier per filament allows for the tailoring of the filtration efficiency and pressure drop across a component 2 formed from the material 1 as well as the stiffness and elasticity of the non-woven material.
  • the variability of the material 1 can be reduced, which enables the material 1 to be gathered in a more consistent manner which in turn provides a more consistent pressure drop across the components 2 formed from the material 1.
  • the greater flexibility associated with a hydroentangled regenerated cellulose material enables a lower void fraction in a component formed from the hydroentangled regenerated cellulose material. In general, the greater the material stiffness, the larger the void fraction.
  • the void fraction can be considered to be the amount of space between the material when it is gathered into a component compared to the cross-sectional area of the component.
  • the void fraction of the material when gathered into a component may be in the range of about 5 % to about 30%, depending on the dpf of the fibres.
  • the void fraction may be in the range of about 5% to about 10%.
  • the void fraction may be in the range of about 20% to about 30%.
  • the plurality of regenerated cellulose fibres 5 may be staple fibres.
  • the plurality of regenerated cellulose fibres 5 may be discontinuous. In other words, when the fibres are formed they may be formed as discrete fibres of a certain length. This is the opposite to the formation of tows used for delivery systems, which are produced as long continuous fibres through a drawing process.
  • the plurality of staple regenerated cellulose staple fibres 5 may have a length in the range of about 30 mm and about 60 mm.
  • the length of the regenerated cellulose staple fibres may be considered to be the extended length or pre-crimped length of the regenerated cellulose fibres.
  • the cross-sectional shape of the fibres in a direction perpendicular to their length may be generally circular.
  • the diameter of each of the plurality of regenerated cellulose fibres 5 may be greater than 10 um. Having regenerated cellulose fibres of this size may help to prevent the fibres 5 becoming dislodged from the material 1 and reduces the risk of inhalation. In some embodiments where the material 1 is used in an article with a fine filter material segment located downstream of the segment formed by the material 1, the diameter of at least some or each of the plurality of regenerated cellulose fibres 5 may be less than 10 um. In some embodiments, the cross-section of each of the plurality of regenerated cellulose fibres 5 may be a shape other than generally circular, for example, but not limited to ‘Y’- shaped.
  • Irregular shaped fibres such as ‘Y’-shaped fibres have the advantage that they have a larger surface area and so are able to provide better filtration and a higher pressure drop.
  • the largest dimension between points on the perimeter of the shape may be greater than 10 um.
  • the plurality of regenerated cellulose fibres 5 may have a fibre length to diameter ratio in the range of about (6omm/iooum) 600:1 to about (3omm/ioum) 3000:1.
  • the material i may be provided in the form of a sheet or an elongate body of material.
  • the material i may be in the form of a sheet having a weight of 30 to 150 g/m 2 , 30 to 120 g/m 2 or 40 to too g/m 2 .
  • the material in the form of a sheet may have a thickness of between 60 and 500 pm or between 150 and 350 pm.
  • the material 1 may be provided in the form of a non-woven sheet formed from a plurality of regenerated cellulose fibres 5.
  • non-woven is used in the context of the present application to refer to fibrous materials, webs, matts or sheets in which a plurality of regenerated cellulose fibres are aligned in an undefined or random orientation.
  • a plurality of non-woven regenerated cellulose fibres are initially presented as unbound fibres or filaments.
  • the plurality of non-woven regenerated cellulose fibres, or filaments, may then be bound together.
  • the material 1 in the form of a plurality of non-woven regenerated cellulose fibres 5 may be produced by hydro-entangling the plurality of regenerated cellulose fibres 5.
  • the plurality of regenerated cellulose fibres 5 may be hydro-entangled to produce a material 1 with the desired physical properties.
  • the present invention also provides a method of forming a material 1 suitable for use as a component 2 in an aerosol provision article 3.
  • the method comprises extruding a plurality of fibres comprising regenerated cellulose, hydroentangling the fibres to form a non-woven sheet, and processing the non-woven sheet to provide a material suitable for use as a component for an aerosol provision article.
  • a non-woven material formed from hydroentangled fibres has a benefit that it has a lower stiffness than other nonwoven materials. This results in a material that is more easily gathered into a rodshaped component and so the finally formed component exhibits a lower amount of, and smaller, voids.
  • the material 1 comprising a plurality of non-woven regenerated cellulose fibres 5 may be processed to provide a material 1 that is suitable for use in a component 2 of an aerosol provision article 3, such as, but not limited to, a filter component of a consumable article.
  • a non-woven web of material 1 formed from a plurality of regenerated cellulose fibres 5 may be passed through a sheet preforming unit and pleated to form a rod-like component comprising a plurality of pleats.
  • the rod-like component 2 can then be circumscribed with wrapping material thereby forming a continuous rod that can be used as a component 2, such as a filter component, in an aerosol provision article 3.
  • the width of the sheet-like material 1 can vary. Typically, the width of the sheet of material 1 is a width that is capable of being pleated to form the component 2.
  • the total width of the sheet of material 1 used for forming the component 2 may depend on a number of factors such as the thickness of the sheet of material 1, the number of pleats required, the character of the pleats produced, the surface characteristics of the material, i.e. a fibrous surface or a smooth surface, the porosity of the material, the moisture content of the material, the lubricity properties of the material, the frictional characteristics of the web preforming apparatus relative to the sheet of material 1, and other such factors.
  • the non-woven sheet of material 1 may have a width in the range of about 5 mm to about 200 mm. In some embodiments, the non-woven sheet of material 1 may have a width in the range of about 50 mm to about 200 mm. In some embodiment, the non-woven sheet of material 1 may have a width in the range of about 50 mm to about 120 mm. In some embodiments, the non-woven sheet of material 1 may have a width in the range of about 60 mm to about 80 mm.
  • the non-woven sheet of material 1 may comprise at least one slit. In some embodiments, the non-woven sheet of material 1 may comprise a plurality of slits. The at least one slit may extend longitudinally through the material 1. Without wishing to be bound by theory, it is thought that the slit allows the material 1 to align more consistently and homogeneously within the component 2 when the material 1 is gathered, which improved the pressure drop across the component 2. Slitting of the sheet of material 1 allows the material 1 to expand, or ‘bloom’, providing enhanced filtration performance.
  • the non-woven sheet of material 1 may be subjected to a crimping step.
  • a crimp can be considered to be a parameter referencing the texture or waviness of individual regenerated cellulose fibres 5 or as a parameter referencing the texture or waviness of the non-woven sheet of material 1 as a whole.
  • the amplitude or depth of a single crimp may be measured in microns.
  • the amplitude or depth of a single crimp is an indirect measure of the degree of crimp applied to the non-woven sheet of material i.
  • crimping the non-woven sheet of material 1 may involve passing the non-woven sheet of material 1 through one or more crimping and/ or embossing rollers configured to cause the non-woven sheet of material i to buckle, thus providing a crimped non-woven sheet of material 1.
  • the non-woven sheet of material 1 is passed through crimping and/or embossing rollers having a specific depth in order to achieve the desired crimp amplitude or depth in the crimped non-woven sheet of material 1. That is, the crimping and/ or embossing rollers may comprise a feature having a specific amplitude or depth configured to achieve the desired crimp amplitude or depth in the crimped non-woven sheet of material 1.
  • the crimping roller may be an electro-polished crimping roller.
  • An electro-polished crimping roller has been found to allow the sheet of material 1 to be crimped to a greater depth whilst causing less damage to the plurality of regenerated cellulose fibres.
  • the crimp amplitude or crimp depth may be in the range of about 1 micron to about 1000 microns.
  • the crimp amplitude or crimp depth may be in the range of about 1 micron to about 800 microns. It has been found by the inventors that a crimp amplitude or crimp depth of less than 800 microns may begin to cause the pressure drop achieved to decrease.
  • the crimp amplitude or crimp depth may be in the range of about 1 micron to about 600 microns.
  • the crimp amplitude of crimp depth may be in the range of about 1 micron to about 400 microns, or about 1 micron to about 300 microns, or about 1 micron to about 200 microns. In some embodiments, the crimp amplitude or crimp depth may be in the range of about 1 micron to about 180 microns, or about 1 micron to about 150 microns, or about 75 microns to about 150 microns, or about 50 microns to about too microns.
  • the non-woven sheet of material 1 formed from a plurality of regenerated cellulose fibres 5.
  • One of such characteristics is basis weight.
  • the basis weights of the non-woven sheet of material 1 maybe in the range of about 30 g/m 2 to about 120 g/m 2 .
  • the basis weights of the non-woven sheet of material i may be in the range of about 50 g/m 2 to about 90 g/m 2 .
  • the basis weights of the non-woven sheet of material 1 may be in the range of about 30 g/m 2 to about 50 g/m 2 , or about 35 g/m 2 to about 45 g/m 2 . Another one of such characteristics is the calliper of the non- woven sheet of material 1.
  • the calliper of the non-woven sheet of material 1 may be in the range of about 0.01 mils (0.00025 mm) to about 4 mils (0.1 mm), or about 0.01 mils (0.00025 mm) to about 1 mils (0.025 mm), or about 0.01 mils (0.00025 mm) to about 0.5 mils (0.127 mm).
  • the non-woven sheet material 1 formed from a plurality of regenerated cellulose fibres 5 may be thin and may have a reasonably high tensile strength, high resiliency, and relatively good flexibility. In some embodiments, it may be desirable that the non-woven sheet of material 1 may be able to maintain a fold but not tear, shatter, or otherwise break during the folding, crimping, or pleating process.
  • the material 1 may be in the form of an elongate body of material having a bulk density of 0.1 to 0.3 g/cm3 or 0.14 to 0.22 g/cm3, in some embodiments, the elongate body of material may comprise the plurality of fibres extending longitudinally through said body from a first end to a second end of the body. In some embodiments, the elongate body of material may comprise a rod-shaped element having a circumference of between about 16mm and about 25mm, or between about 18mm and about 23mm.
  • the material 1 may be provided as a regenerated cellulose tow.
  • the material 1 may have any of the properties or features discussed herein.
  • the regenerated cellulose tow material 1 may be formed by 3 dpf continuous fibres, also referred to as a filaments.
  • the regenerated cellulose tow material 1 may have a length of at least 1.5 km.
  • the cross-section of the regenerated cellulose fibres forming the regenerated cellulose tow material 1 may be ‘Y’ shaped.
  • the regenerated cellulose tow material 1 may be free from titanium dioxide.
  • the regenerated cellulose tow material 1 may also comprise a spin finish oil that is halogen free.
  • the regenerated cellulose tow material 1 may have a total denier of at least 12000. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of at least 20000. In some embodiments, the regenerated cellulose tow material i may have a total denier of at least 25000. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of at least 30000. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of at least 35000. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of 35000.
  • the mass of the regenerated cellulose tow material 1 may be at least 35000 grams per 9000 metres of regenerated cellulose tow.
  • the regenerated cellulose tow material 1 may have a total denier of less than or equal to 80000.
  • the regenerated cellulose tow material 1 may be provided in bale form.
  • an additive may be applied to the non-woven sheet of material 1 before, during, or after the formation thereof.
  • the additive may be added to the pleated non-woven sheet of material 1 during component formation to provide the desired sensory characteristics and/or to improve aerosol chemistry.
  • the additive which in some embodiments may comprise triacetin and/ or carbowax, may be applied to the non-woven sheet of material 1 in traditional amounts using known techniques.
  • the additive may be a plasticiser.
  • the additive may be applied to the non-woven sheet of material 1 in an amount of about 0.1% to about 20% by weight, based on the total weight of the non-woven sheet of material 1. In some embodiments, the additive may be applied to the non-woven sheet of material 1 in an amount of about 3% to about 15% by weight, or about 6% to about 12% by weight. For example, the additive may be applied to the nonwoven sheet of material 1 in an amount of at least about 2%, at least about 4%, at least about 6%, at least about 8%, at least about 10%, at least about 12%, at least about 14%, at least about 16%, or at least about 18% by weight, based on the total weight of the non-woven web of material 1.
  • a component 2 formed from the material 1 of the present invention is shown.
  • the component 2 formed from the nonwoven sheet of material 1 formed by a plurality of regenerated cellulose fibres 5 may be a filter component.
  • the material 1 may be considered to be a filter material even if it is not used as such in an aerosol provision article 3.
  • Aerosol provision articles 3 comprising a component 2 formed of the material 1 comprising a plurality of non- woven regenerated cellulose fibres 5 may be manufactured using traditional methods and techniques.
  • an aerosol provision article 3 comprising the component 2 formed from the material 1 of the present invention is shown. The dimensions of a representative aerosol provision article 3 according to the present invention may vary.
  • aerosol provision articles 3 may be rod shaped.
  • the aerosol provision articles 3 may have a diameter of about 7.5 mm and a circumference of about 23.5 mm.
  • the aerosol provision articles 3 may have a diameter in the range of about 3.1 mm to about 11.2 mm and a circumference of about 10 mm to about 35 mm.
  • the aerosol provision articles 3 may have a diameter in the range of about 5 mm to about 7.7 mm and a circumference in the range of about 16 mm to about 24 mm.
  • the aerosol provision article 3 may have a total length in the range of about 60 mm to about 150 mm. In some embodiments, the aerosol provision article 3 may have a total length in the range of about 80 mm to about 144 mm.
  • the lengths of the aerosol provision article 3 may vary.
  • the aerosol provision articles 3 may have total lengths of about 140 mm or less, about too mm or less, about 80 mm or less, about 60 mm or less, or about 40 mm or less.
  • the length of the component 2 formed by the material 1 may also vary.
  • the component 2 formed by the material 1 is a filter component, the component 2 may have a total length in the range of about 15 mm to about 40 mm, often in the range of about 20 mm to about 35 mm.
  • the component 2 formed from the material 1 comprising a plurality of regenerated cellulose fibres 5 that is shown in Fig. 2 and Fig. 3 may exhibit a desirable resistance to draw. That is, the component 2 may exhibit a desirable pressure drop across its length when gas is drawn from one side to the other.
  • the pressure drop may be in the range of between about 40 mmWG and about 650 mmWG.
  • the pressure drop maybe in the range of between about too mmWG and about 350 mmWG, about 150 mmWG to about 325 mmWG, or about 200 mmWG to about 300 mmWG, or about 250 mmWG to about 200 mmWG.
  • the pressure drop of the component 2 may be measured in mm/WG per mm of the component in the longitudinal direction of the component 2.
  • the component 2 may be a standard circumference component, i.e. about 23 mm to about 25 mm.
  • the pressure drop may be in the range of between about 1 mm/WG per mm of length of the component to about 6.5 mm/WG per mm of length of component 2.
  • the pressure drop may be in the range of between about 2 mm/WG per mm of length of the component 2 to about 4.5 mm/WG per mm of length of the component 2.
  • the pressure drop may be in the range of between about 4.5 mm/WG per mm of length of the component 2 to about 6.5 mm/WG per mm of length of the component 2.
  • a component 2 formed from the material 1 comprising a plurality of regenerated cellulose fibres 5 may exhibit a desirable hardness.
  • the component 2 may have a hardness in the range of about 70% to about 99%.
  • components 2 of the present invention may exhibit a hardness of about 75% or higher, about 80% or higher, about 85% or higher, or about 90% or higher.
  • the hardness of the component 2 may be in the range of about 85% to about 93%.
  • a component may comprise a plug wrap, or other wrapping material, circumscribing the material 1 that has a basis weight of 60 gsm or higher. The component being circumscribed by a wrapping material having a basis weight of 60 gsm or higher helps to increase the hardness of the component.
  • the hardness of the component may be measured according to the following protocol. Where the hardness of a section is referred to herein, the hardness is that as determined by the following measurement process. Any suitable device may be used for performing the measurement, such as the Borgwaldt Hardness Tester H10.
  • Hardness is defined as the ratio between the height ho of a body and the height hi of the body under a defined load, stated as a percentage of ho. Hardness may be expressed as:
  • Hardness (hi/ho)xioo
  • the hardness measurement is performed at the longitudinal centre point of the body or multi-section rod (as specified).
  • a load bar is used to apply the defined load to the body.
  • the length of the load bar should be significantly higher than that of the specimen to be measured.
  • the body to be measured Prior to the hardness measurement, the body to be measured is conditioned according to ISO 3402:2023 for a minimum of 48 hours, and is maintained in environmental conditions according to ISO 3402:2023 during the measurement.
  • a body is placed into the Hardness Tester H10, a pre-load of 2 g is applied to the body, and after 1 s the initial height ho of the body under the 2 g pre-load is recorded. The pre-load is then removed and a load bar bearing a load of 150 g is lowered onto the sample at a rate of 0.6 mm/s, after 5 s the height hi of the body under the 150 g load is measured.
  • the hardness of the component is determined as the average hardness of at least 20 components measured according to this protocol.
  • a component 2 as described above are given below as examples only. Reference to the component 2 in the below examples are given for a base rod of a given length.
  • the base rod component may be cut into smaller segments and used in or as a filter in an article.
  • a component 2 may be formed from a hydroentangled non-woven sheet of material.
  • the component 2 may be formed from a sheet of material 1 comprising a plurality of regenerated cellulose fibres having a dpf of about 3.
  • the regenerated cellulose fibres 5 may be formed from lyocell.
  • the component 2 may be formed from a sheet of material 1 have a weight in the range of 50 to 60 gsm.
  • the component 2 may be formed from a sheet of material having a width in the range of about 70 mm to about 90 mm.
  • a component 2 formed from a sheet of material having a weight of 60 gsm may have a length in the range of about 75 mm to 85 mm.
  • the component may have a length of about 80 mm.
  • the component may have a circumference of about 20 mm to about 21mm.
  • the component 2 may have a weight in the range of about 0.44 g to about 0.58 g.
  • the component may have a weight in the range of about 0.45 g to about 0.51 g.
  • the pressure drop across the component 2 may be in the range of about 200 mmWG to about 375 mmWG.
  • the pressure drop across the component may be in the range of about 210 mmWG to about 300 mmWG.
  • the component may have a hardness in the range of greater than 80%.
  • the component may have a hardness in the range of 83% to 88 %.
  • the component 2 may be wrapped by a plug wrap having a weight of 6ogsm.
  • a component 2 formed from a sheet of material having a weight of 50 gsm may have a length in the range of about 75 mm to 85 mm.
  • the component may have a length of about 80 mm.
  • the component may have a circumference of about 20 mm to about 21mm.
  • the component 2 may have a weight in the range of about 0.39 g to about 0.47 g.
  • the component may have a weight in the range of about 0.42 g to about 0.45 g.
  • the pressure drop across the component 2 may be in the range of about 150 mmWG to about 240 mmWG.
  • the pressure drop across the component may be in the range of about 170 mmWG to about 210 mmWG.
  • the component may have a hardness in the range of greater than 80%.
  • the component 2 may be wrapped by a plug wrap having a weight of 6ogsm.
  • the base rod component described may be cut into 8 segments such that each segment for use in or as a filter portion of an article is about 10 mm long.
  • the parameters given above may be divided by 8 to achieve the parameters of a single segment component .
  • the pressure drop across the 10 mm component 2 may be in the range of about 42 mmWG to about 55 mmWG.
  • a component 2 may be formed from a hydroentangled non-woven sheet of material 1.
  • the component 2 may be formed from a sheet of material 1 comprising a plurality of regenerated cellulose fibres 5 having a dpf in the range of 2.5 to 3.
  • the regenerated cellulose fibres 5 may be formed from lyocell.
  • the component 2 may be formed from a sheet of material 1 comprising a plurality of 3 dpf regenerated cellulose fibres.
  • the component 2 may be formed from a sheet of material 1 having a weight of 60 gsm.
  • the component 2 may be formed from a sheet of material 1 having a width of about 130 mm.
  • the component 2 may have a length in the range of about 105 to no mm.
  • the component may have a length of about 108 mm.
  • the component 2 may have a weight in the range of about 0.94 g to about 1.05 g.
  • the component may have a weight in the range of about 0.98 g to about 1.02 g.
  • the circumference of the component 2 may be about 24 mm.
  • the pressure drop across the component 2 may be in the range of about 250 mmWG to about 310 mmWG.
  • the pressure drop across the component 2 may be in the range of about 265 mmWG to about 295 mmWG.
  • the component 2 may have a hardness in the range of about 86% to about 93%.
  • the component 2 may have a hardness in the range of about 88% to about 92%.
  • the component 2 may be cut into 4 segments, each about 27 mm long, which may be used in or as a filter portion of an article. Thus, the parameters given above may be divided by 4 to achieve the
  • FIG. 4 an exploded view of an exemplary aerosol provision article 10 is shown.
  • the exemplary aerosol provision article 10 is shown as generally cylindrical.
  • the aerosol provision article 10 may be, for example, but not limited to, cuboidal and optionally substantially flat.
  • the aerosol provision article 10 comprises a generally cylindrical rod 12.
  • the generally cylindrical rod 12 comprises an aerosol generating material 13.
  • the aerosol generating material 13 may be provided as a charge or roll of aerosol generating material 13.
  • the aerosol generating material 13 may be, for example, but not limited to, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smokeable material, non-tobacco material, or amorphous solid material.
  • the rod 12 of aerosol generating material 13 may be contained in a circumscribing wrapping material 14. The ends of the rod 12 may be open to expose the aerosol generating material 13. At one end of the rod 12 of aerosol generating material 13 is located the distal end 18. If the aerosol provision article 10 is a combustible aerosol provision article, the distal end 18 may be the end of the aerosol provision article 10 that is lit during use. If the aerosol provision article 10 is a non-combustible aerosol provision article, the distal end 18 may be the end of the aerosol provision article 10 that is first inserted into an aerosol provision device (not shown).
  • the proximate end 19 of the rod 12 may be the end of the rod 12 that is located closer to the consumer’s mouth during use.
  • a filter element 22 is positioned adjacent to the proximate end 19 of the rod 12.
  • the filter element 22 may comprise the component 2 formed of the material 1 comprising a plurality of nonwoven regenerated cellulose fibres 5, as described herein.
  • the filter element 22 may have a generally cylindrical shape.
  • the diameter of the filter element 22 may be essentially equal to the diameter of the rod 12 of aerosol generating material 13.
  • the filter element 22 may be circumscribed along its outer circumference or longitudinal periphery by a layer of outer plug wrap 24 to form the filter element 22.
  • the filter element 22 may be positioned adjacent to one end of the rod 12 of aerosol generating material 13, i.e. the proximal end 19, such that the filter element 22 and rod 12 of aerosol generating material 13 are axially aligned.
  • the rod 12 of aerosol generating material 13 and the filter element 22 may be axially aligned in an end-to-end relationship.
  • the rod 12 of aerosol generating material 13 and the filter element 22 may be axially aligned in an end-to-end abutting relationship.
  • the ends of the filter element 22 may permit the passage of air and aerosol therethrough.
  • the aerosol provision article 10 may further comprise a tipping wrapper 25.
  • the tipping wrapper 25 may circumscribe at least a portion of the outer circumference of the outer plug wrap 24 of the filter element 22 and at least a portion of the wrapping material 14 of the rod 12 of aerosol generating material 13.
  • the tipping wrapper 25 may be configured to attach the filter element 22 to the rod 12 of aerosol generating material 13-
  • the tipping wrapper 25 may be air impermeable. In some embodiments, the tipping wrapper 25 may circumscribe both the entire length of the filter element 22 and an adjacent region of the rod 12 of aerosol generating material 13. The inner surface of the tipping wrapper 25 may be fixedly secured to the outer surface of the plug wrap 24 and the outer surface of the wrapping material 14 of the rod 12 of aerosol generating material 13. The tipping wrapper 25 may be fixedly secured to the plug wrap 24 and the wrapping material 14 using a suitable adhesive. Thus, the filter element 22 and rod 12 of aerosol generating material 13 may be connected to one another to form the aerosol provision article 10.
  • the aerosol provision article 10 may be a ventilated or air diluted smoking article 10.
  • the aerosol provision article 10 may comprise an air dilution means 26.
  • the air dilution means 26 may be, for example, but not limited to, a series of perforations 27. Each of the perforations 27 may extend through the tipping wrapper 25 and the wrapping material 14.
  • the series of perforations 27 may be made by various techniques know in the art, such as laser perforation.
  • off-line air dilution techniques may be used, such as, for example, but not limited to, the use of porous paper plug wrap and/or pre-perforated tipping wrappers.
  • the amount or degree of air dilution or ventilation may vary.
  • the amount of air dilution or ventilation of an aerosol provision article 10 may be greater than about 10%.
  • the amount of air dilution or ventilation of the aerosol provision article 10 may be greater than about 20%, is sometimes greater than 30%, and may sometimes be greater than 40%.
  • the upper level for air dilution for an air diluted aerosol provision article 10 may be less than 80%, and is often less than about 70%.
  • air dilation is the ratio of the volume of air drawn through the air dilution means 26 to the total volume of air and aerosol drawn through the aerosol provision article 10 and exiting the extreme mouth end portion of the aerosol provision article 10.
  • the filter element 22 may comprise a mouth end 29.
  • the mouth end 29 may be an extremity of the aerosol provision article 10.
  • the mouth end 29 may be configured to be placed in a user’s mouth for a user to draw on during use.
  • aerosol provision article 10 described previously and depicted herein is not intended to be limiting of the present invention.
  • material 1 and component 2 of the present invention may be incorporated into a variety of different aerosol provision articles 10, including but not limited to, conventional cigarettes, heat-not-burn devices, tobacco heating products, electronic smoking articles, aerosol deliveiy devices, and the like, as well as aerosol provision articles that may comprise features from each of the previously mentioned categories of aerosol provision article.
  • the aerosol provision article and/or aerosol provision system of the present invention may provide many of the sensations of a conventional cigarette without any substantial degree of combustion of any component thereof.
  • the sensations provided may include inhalation and exhalation rituals, types of tastes or flavours, organoleptic effects, physical feel, use rituals, visual cues such as those provided by visible aerosol, and the like.
  • the user of an aerosol provision article and/or an aerosol provision system of some of the present embodiments may hold and use that component in a similar manner as a smoker uses a traditional cigarette. That is, a user may hold the component and draw on one end of that component for inhalation of aerosol produced by that component, and then take or draw a puff at selected intervals of time.
  • the exemplary aerosol provision device 30 may comprise a body 32.
  • the body 32 may be configured to receive an aerosol provision article 3, 10 as previously described.
  • Various mechanisms may be used to connect the aerosol provision article 3, 10 to the body 32 of the aerosol provision device 30.
  • Such mechanisms may include, but are not limited to, a threaded engagement, a press-fit engagement, an interference fit, a sliding fit, a magnetic engagement, or the like.
  • the aerosol provision device 30 may have a variety of overall shapes, including, for example, but not limited to, an overall shape that may be defined as being substantially rod-like or substantially tubular-shaped or substantially cylindrically shaped, such as that shown in Fig. 5.
  • the aerosol provision device 30 shown in Fig. 5 has a substantially circular cross-section.
  • the body 32 of the aerosol provision device 30 may have a different cross section, such as, but not limited to, a substantially rectangular shape, such as a substantially rectangular cuboidal shape.
  • the body 32 of the aerosol provision device 30, or any other component thereof may have other hand-held shapes.
  • the aerosol provision device 30 may have a small box shape, various pd mod shapes, or a fob-shape.
  • Alignment of the aerosol provision article 10 within the aerosol provision device 30 may vary.
  • the substrate portion may be position proximate to a heat source so as to maximise aerosol delivery to the user.
  • the heat source may be positioned sufficiently near the rod 12 of aerosol generating material 13 so that heat from the heat source can volatilise the aerosol generating material 13 as well as any other substances present, such as one or more flavourants, active ingredients, or the like, and form an aerosol for delivery to the user.
  • the heat source heats the substrate portion, an aerosol is formed, released, or generated in a physical form suitable for inhalation by a consumer.
  • the aerosol provision device 30 may incorporate a battery and/or other electrical power source to provide current flow sufficient to provide various functionalities to the aerosol delivery device, such a powering of the heat source, powering of the control systems, powering of the indicators, etc, as described in more detail hereinafter.
  • the power source may be able to deliveiy sufficient power to rapidly activate the heat source to provide for aerosol formation and power the aerosol provision device 30 through use for a desired duration of time.
  • the power source may be sized to fit conveniently within the body 32 of the aerosol provision device 30 so that the aerosol provision device 30 can be easily handled.
  • the power source may be a replaceable batteiy or a rechargeable battery, a solid-state batteiy, a thin-film solid-state battery, or rechargable supercapacitor, etc., and may be combined with any suitable type of recharging technology.
  • the aerosol provision article 10 may comprise a heated portion 16.
  • the heated portion 16 may generally be the section of the aerosol provision article 20 that comprises the rod 12 of aerosol generating material 13 or at least a portion thereof.
  • the heated portion 16 may be configured to be inserted in the body 32 of the aerosol provision device 30.
  • Testing of the material 1 of the present invention has been conducted to evaluate various properties of the component 2 formed by the material 1 comprising a plurality of non-woven regenerated cellulose fibres 5.
  • a material 1 for use as a components, shown in Fig. 2, in an aerosol provision article 3, shown in Fig. 3.
  • the material 1 comprises a plurality of fibres 5 comprising regenerated cellulose, and a binder.
  • the material has a bulk density in the range of about 0.1 g/cm3 to about 0.4 g/cm3.
  • the plurality of fibres 5 may be non-continuous.
  • the plurality of fibres may have a fibre length in the range of about 10 mm to about 60 mm.
  • the plurality of fibres may be wet- laid. In some embodiments, the plurality of fibres may be air-laid.
  • the binder 6 may be configured to bind the plurality of fibres 5 together.
  • the plurality of regenerated cellulose fibres 5 have a bulk density of about 0.12 g/cm3 to about 0.3 g/cm3.
  • the plurality of regenerated cellulose fibres 5 have a bulk density of about 0.15 g/cm3 to about 0.25 g/cm3.
  • the plurality of regenerated cellulose fibres 5 may have a denier per filament of between about 1 dpf and about 10 dpf.
  • the material 1 and component 2 formed from the material 1 of the current aspect of the present invention are similar to the component 2 of the previously described aspect and so a detail description thereof will be omitted herein. Furthermore, similar features and components will retain their terminology and reference numerals. In addition, it will be appreciated the features and components of the previously described material i and component 2 may be incorporated into the material 1 and the component 2 of the present aspect and vice versa.
  • the non-woven sheet of material i may be produced by a conventional method of forming such as a wet-laid process. It is known in the industry that the term wet-laid is broad in meaning and that it may incorporate a variety of equipment, processes, and means. The use of the term wet-laid is not limiting and does not define a single process for the means of manufacturing.
  • the plurality of fibres 5 may be wet-laid.
  • the term “wet-laid”, as used herein, generally refers to a process for producing a fibrous sheet of material 1 through a means similar to paper making where the fibres are suspended in an aqueous medium and the sheet is formed by filtering the suspension on a conveyor belt or perforated drum.
  • the binder may be introduced to achieve the desired final properties in the wet-laid non-woven sheet of material 1.
  • the binder 6 may be, for example, but not limited to, polyvinyl alcohol (PVOH), pectin, starch, microfibrillated cellulose (MFC), polysaccharide, shellac, and combinations thereof.
  • PVOH polyvinyl alcohol
  • MFC microfibrillated cellulose
  • the binder 6 may be an alternative natural polymer not mentioned in the preceding list.
  • the bulk density of the plurality of fibres 5 of regenerated cellulose may be calculated without taking into account any other features of the material 1, component 2, or article 3 when the material 1 is formed into a component 2 or article 3.
  • the plurality of fibres 5 of regenerated cellulose material may have a bulk density in the range of about 0.10 g/cm3 to about 0.40 g/cm3, in some embodiments, the plurality of fibres 5 of regenerated cellulose material may have a bulk density in the range of about 0.12 g/cm3 to about 0.30 g/cm3, in some embodiments, the plurality of fibres 5 of regenerated cellulose material may have a bulk density in the range of about 0.15 g/cm3 to about 0.25 g/cm3.
  • the bulk density of the material 1 can be tailored to provide the user with a satisfactory pressure drop when the material is formed into a component 2 for use as or in an article
  • the plurality of fibres 5 have been previously described as comprising regenerated cellulose, it may be the case that the plurality of fibres 5 forming the material 1 consist or essentially consist of regenerated cellulose.
  • the material 1 may comprise one or more coatings, fillers, additives, and/ or other components.
  • the material 1 may comprise the plurality of fibres and one or more coatings, fillers, additives, surface treatments, or other materials applied thereto or incorporated therein.
  • One such coating may be, for example, a plasticizer such as triacetin which is normally applied to conventional filter materials in traditional amounts using known techniques.
  • the other material that is applied to or incorporated in the material 1 may be applied in liquid form.
  • the other material may comprise such substances as, for example, but not limited to, triacetin, carbowax, flavouring compounds, propylene glycol, tri-ethyl-citrate, or any other suitable substance.
  • each coating, filler, or other component that is applied to the material 1 may contribute some functionality or property to the component 2 that the material 1 is formed into.
  • each coating, filler, or other component may aid in filtering aerosol, improving aerosol taste, water dispersibility, biodegradability, and/or compostability.
  • the binder 6 may be applied to the non-woven sheet of material 1 before, during, or after the formation thereof.
  • the binder may be added to the pleated non-woven sheet of material 1 during component formation to provide the desired sensory characteristics and/or to improve aerosol chemistry.
  • the binder which in some embodiments may comprise pectin, may be applied to the non- woven sheet of material 1 in traditional amounts using known techniques.
  • the binder may be applied to the non-woven sheet of material 1 in an amount of about 0.1% to about 30% by weight, based on the total weight of the non-woven sheet of material 1. In some embodiments, the binder may be applied to the non-woven sheet of material 1 in an amount of about 5% to about 30% by weight.
  • the binder may be, for example, pectin or starch. The amount of binder may be determined based on the dpf of the fibres and the weight of the sheet of material i. It has been determined that too much binder renders a material that is too stiff and hard to be run on manufacturing apparatus.
  • the binder may be applied to the non-woven sheet of material i in an amount of about 3% to about 15% by weight, or about 6% to about 12% by weight.
  • the binder may be applied to the non-woven sheet of material 1 in an amount of at least about 2%, at least about 4%, at least about 6%, at least about 8%, at least about 10%, at least about 12%, at least about 14%, at least about 16%, or at least about 18% by weight, based on the total weight of the non-woven sheet of material 1.
  • the binder comprises between 2% and 20%, by weight, of the component 2 for an aerosol provision article 2.
  • the binder may be applied to the non-woven sheet of material 1 in an amount of 4% by weight.
  • the binder may comprise pectin.
  • the binder may comprise about 4% pectin, by weight, of the component 52.
  • a component 2 for an aerosol provision article 3 comprises an aerosol-generating material 1 comprising a plurality of fibres 5 formed from regenerated cellulose.
  • the aerosolgenerating material 1 of the component 2 further comprises an aerosol former material in the range of about 5% to about 60%, by weight, of the aerosol-generating material 1.
  • the component 2 of the current aspect of the present invention is similar to the component 2 of the previously described aspect and so a detailed description thereof will be omitted herein. Furthermore, similar features and components will retain their terminology and reference numerals. In addition, it will be appreciated that the features and components of the previously described component 2 may be incorporated into the component 2 of the present aspect and vice versa.
  • the aerosol-former material may comprise one or more constituents capable of forming an aerosol.
  • the aerosol-former material may comprise one or more of glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, eiythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauiyl acetate, lauric acid, myristic acid, and propylene carbonate.
  • the aerosol former material comprises one or more polyhydric alcohols, such as propylene glycol, triethylene glycol, 1 ,3- butanediol and glycerin; esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; and/or aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate.
  • polyhydric alcohols such as propylene glycol, triethylene glycol, 1 ,3- butanediol and glycerin
  • esters of polyhydric alcohols such as glycerol mono-, di- or triacetate
  • aliphatic esters of mono-, di- or polycarboxylic acids such as dimethyl dodecanedioate and dimethyl tetradecanedioate.
  • the material 1 may contain an aerosol-former material.
  • the aerosol-former material of the material 1 may be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol.
  • Glycerol may be present in an amount of from 10 to 20 % by weight of the material 1, for example 13 to 16 % by weight of the composition, or about 14% or 15% by weight of the composition.
  • Propylene glycol, if present, may be present in an amount of from 0.1 to 0.3% by weight of the composition.
  • the aerosol-former material may be included in any component 2 formed from the material 1 comprising a plurality of regenerated cellulose fibres 5, for example any filter component and/or any plug component, and or any aerosol generating section that may be configured to be heated, if present.
  • the total amount of the aerosol- former material in the material 1 can be as defined herein.
  • the aerosol-former material may comprise an amorphous solid material comprising 40% menthol, 16% glycerol, 20% binder (alginate/pectin mix), and 20% fibres (wood pulp).
  • the amorphous solid comprises: 1-60 wt% of a gelling agent
  • the amorphous solid comprises: 1-50 wt% of a gelling agent; 0.1-50 wt% of an aerosol-former agent; and 30-60 wt% of a flavour; wherein these weights are calculated on a dry weight basis.
  • the aerosol former material may form 60% of the material by weight.
  • a component formed of lyocell fibres that is configured to be heated may comprise up to about 60% of propylene glycerol, or vegetable glycerine, or a combination of propylene glycerol and vegetable glycerine, by weight.
  • the component may comprise nicotine.
  • the component may comprise nicotine, up to 5% of which is neutralised by the use of benzoic acid at a ration of 1:1.
  • a combination of levulinic acid and benzoic acid may be used.
  • the amorphous solid comprises: aerosol-former material in an amount of from about 40 to 80 wt% of the amorphous solid; gelling agent and optional filler (i.e.
  • filler in some examples filler is present in the amorphous solid, in other examples filler is not present in the amorphous solid), wherein the amount of gelling agent and filler taken together is from about 10 to 60 wt% of the amorphous solid (i.e. the gelling agent and filler taken together account for about 10 to 60 wt% of the amorphous solid); and optionally, active substance and/or flavourant in an amount of up to about 20 wt% of the amorphous solid (i.e. the amorphous solid comprises ⁇ 20 wt% active substance).
  • the amorphous solid material may be formed from a dried gel.
  • flavour compounds are stabilised within the gel matrix allowing a higher flavour loading to be achieved than in non-gel compositions.
  • the flavour e.g. menthol
  • the flavour is stabilised at high concentrations and the products have a good shelflife.
  • the amorphous solid may have a thickness of about 0.015 mm to about 1.5 mm.
  • the thickness may be in the range of about 0.05mm, 0.1 mm or 0.15 mm to about 0.5 mm, 0.3 mm or 1 mm.
  • a material having a thickness of 0.2 mm is particularly suitable in some embodiments.
  • the amorphous solid may comprise more than one layer, and the thickness described herein refers to the aggregate thickness of those layers. If the amorphous solid is too thick, then heating efficiency is compromised. This adversely affects the power consumption in use. Conversely, if the amorphous solid is too thin, it is difficult to manufacture and handle; a very thin material is harder to cast and may be fragile, compromising aerosol formation in use.
  • the amorphous solid may comprise from about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt% or 35 wt% to about 60 wt%, 55 wt%, 50 wt%, 45 wt%, 40 wt% or 35 wt% of a gelling agent (all calculated on a dry weight basis).
  • the amorphous solid may comprise 1-60 wt%, 5-60 wt%, 20-60 wt%, 25-55 30-50 wt%, 35-45 wt%, 5-45 wt%, 10-40 wt% or 20-35 wt% of a gelling agent.
  • the amorphous solid may comprise a gelling agent.
  • the gelling agent may comprise one or more compounds selected from cellulosic gelling agents, non-cellulosic gelling agents, guar gum, acacia gum and mixtures thereof.
  • the gelling agent comprises a hydrocolloid. In some embodiments, the gelling agent comprises one or more compounds selected from the group comprising alginates, pectins, starches (and derivatives), celluloses (and derivatives), gums, silica or silicones compounds, clays, polyvinyl alcohol and combinations thereof.
  • the gelling agent comprises one or more of alginates, pectins, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose, pullulan, xanthan gum guar gum, carrageenan, agarose, acacia gum, fumed silica, polydimethylsiloxane (PDMS), sodium silicate, kaolin and polyvinyl alcohol.
  • the gelling agent comprises alginate and/or pectin, and may be combined with a setting agent (such as a calcium source) during formation of the amorphous solid.
  • the amorphous solid may comprise a calcium- crosslinked alginate and/or a calcium-crosslinked pectin.
  • the cellulosic gelling agent can be selected from the group consisting of: hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), methyl cellulose, ethyl cellulose, cellulose acetate butyrate (CAB), cellulose acetate propionate (CAP) and combinations thereof.
  • the gelling agent comprises (or is) one or more of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose (HPMC), carboxymethylcellulose, guar gum, or acacia gum.
  • the gelling agent comprises (or is) one or more non-cellulosic gelling agents, including, but not limited to, agar, xanthan gum, gum Arabic, guar gum, locust bean gum, pectin, carrageenan, starch, alginate, and combinations thereof.
  • the non-cellulose based gelling agent is alginate or agar.
  • the amorphous solid comprises alginate and pectin, and the ratio of the alginate to the pectin is from 1:1 to 10:1.
  • the ratio of the alginate to the pectin is typically >1:1, i.e. the alginate is present in an amount greater than the amount of pectin.
  • the ratio of alginate to pectin is from about 2:1 to 8:1, or about 3:1 to 6:1, or is approximately 4:1.
  • the amorphous solid comprises filler in an amount of from 1 to 30 wt% of the amorphous solid, such as 5 to 25 wt%, or 10 to 20 wt%. In examples, the amorphous solid comprises filler in an amount greater than 1 wt%, 5 wt%, or 8 wt% of the amorphous solid. In examples, the amorphous solid comprises filler in an amount less than 4 owt%, 30 wt%, 20 wt%, 15 wt%, I2wt% iowt%, 5wt%, or iwt% of the amorphous solid. In other examples, the amorphous solid does not comprise filler.
  • the amorphous solid comprises gelling agent and filler, taken together, in an amount of from about 10 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt%, 45 wt%, 50 wt%, 55 wt% or from about 60 wt%.
  • the amount of gelling agent and filler, taken together is no more than 85 wt%, 80 wt%, 75 wt%, 70 wt%, 65 wt%, or no more than 60 wt% of the amorphous solid.
  • the amorphous solid comprises gelling agent and filler, taken together, in an amount of from about 20 to 60 wt%, 25 to 55 wt%, 30 to 50 wt%, or 35 to 45 wt% of the amorphous solid.
  • the filler may comprise one or more inorganic filler materials, such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, magnesium carbonate, and suitable inorganic sorbents, such as molecular sieves.
  • the filler may comprise one or more organic filler materials such as wood pulp, cellulose and cellulose derivatives.
  • the amorphous solid comprises no calcium carbonate such as chalk.
  • the filler may be fibrous.
  • the filler may be a fibrous organic filler material such as wood pulp, hemp fibre, cellulose or cellulose derivatives.
  • the amorphous solid does not comprise tobacco fibres. In particular examples, the amorphous solid does not comprise fibrous material.
  • the amorphous solid may comprise from about 0.1 wt%, 0.5 wt%, 1 wt%, 3 wt%, 5 wt%, 7 wt% or 10 wt% to about 80 wt%, 50 wt%, 45 wt%, 40 wt%, 35 wt%, 30 wt% or 25wt% of an aerosol former material (all calculated on a dry weight basis).
  • the amorphous solid may comprise 0.5-40 wt%, 3-35 wt% or tor 25 wt% of an aerosol former material.
  • the aerosol former material may act as a plasticiser. If the content of the plasticiser is too high, the amorphous solid may absorb water resulting in a material that does not create an appropriate consumption experience in use. If the plasticiser content is too 0 low, the amorphous solid may be brittle and easily broken.
  • the aerosol former included in the amorphous solid comprises one or more polyhydric alcohols, such as propylene glycol, triethylene glycol, 1 ,3- butanediol and glycerin; esters of polyhydric alcohols, such as glycerol mono-, di- or 5 triacetate; and/or aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate.
  • polyhydric alcohols such as propylene glycol, triethylene glycol, 1 ,3- butanediol and glycerin
  • esters of polyhydric alcohols such as glycerol mono-, di- or 5 triacetate
  • aliphatic esters of mono-, di- or polycarboxylic acids such as dimethyl dodecanedioate and dimethyl tetradecanedioate.
  • the aerosol former material comprises one or more compound selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol and xylitol.
  • the inclusion 0 of triacetin may reduce the perceived harshness of the aerosol generated.
  • the aerosol former material comprises, consists essentially of or consists of glycerol.
  • the amorphous solid material may comprise a combustion retarding salt.
  • the 35 combustion retarding salt used herein is a chemical compound consisting of an ionic assembly of cations and anions.
  • the salts used herein are those whose anion and/or whose cation may be effective in retarding combustion.
  • the salt is an inorganic salt.
  • the salt is a halide salt, i.e. has a halide anion.
  • the salt is a chloride salt or a bromide salt. The presence of high concentrations of chloride or bromide has been shown to retard combustion.
  • the salt may be an alkali metal salt, i.e. has an alkali metal cation. In some embodiments, the salt has an alkali earth metal cation. In some embodiments, the salt has a zinc cation or an iron cation, such as ferric or ferrous cation. In some embodiments, the salt has an ammonium cation or phosphonium cation.
  • the salt may be an alkali metal halide, such as sodium chloride or potassium chloride.
  • the salt may be an alkali earth metal halide, such as magnesium chloride, calcium chloride.
  • the salt may be another metal halide, such as zinc chloride or sodium bromide.
  • the salt has a carboxylate anion.
  • the salt may be an alkali metal carboxylate, such as potassium citrate, potassium succinate, potassium malate, potassium acetate, potassium tartrate, potassium oxalate, sodium citrate, sodium succinate, sodium acetate, or sodium malate.
  • the salt has an anion selected from: borate, carbonate, phosphate, sulphate, or sulphamate.
  • Factors that may influence the selection of salt will include, for example, melting point, which will preferably be at least 45O°C.
  • the salt is soluble in water.
  • the salt is selected to provide a desired pH to the material it is added to. In some embodiments, the salt will not significantly change the pH of the material.
  • the combustion retarding salt selected may have one or more advantageous properties, such as: inertness, solubility in a precursor liquid, solubility, or distribution in the amorphous solid material or precursor material to the amorphous solid material, density or other properties known in the art.
  • the combustion retarding slat comprises, consists essentially of, or consists of sodium chloride, potassium chloride, sodium bromide, and/or potassium bromide.
  • the components of the salt may be in free base form, salt form, or as a complex, or as a solvate.
  • the combustion retarding salt may be of any density and any crystalline structure.
  • the combustion retarding salt is incorporated into or added to the amorphous solid material dissolved in a solvent or liquid carrier.
  • the combustion retarding salt is suspended in a liquid carrier.
  • the solvent or liquid carrier may be an aqueous or organic liquid, and may be polar or non- polar depending on it suitable application.
  • the liquid carrier or 36 precursor solvent may be advantageously selected to be readily removed during the manufacture of the combustion retarding material to leave the combustion retarding slat in or on the amorphous solid material.
  • the liquid carrier is a mixture of liquids, including aqueous liquid (water) and no-aqueous liquid (e.g. glycerol).
  • aqueous liquid water
  • no-aqueous liquid e.g. glycerol
  • the described component 2 may be used in an aerosol provision article, in some cases a non-combustible aerosol provision article 3, as generally shown in Fig. 3.
  • the aerosol provision article 3 may be for use as or as part of an aerosol provision system.
  • the aerosol provision article 3 comprises an aerosol generating material 13 and the component .
  • the component 2 comprises a plurality of fibres 5 formed from regenerated cellulose and in the range of about 5 % to about 60 % of an aerosol former material.
  • the component 2 as described above may further comprise an active substance.
  • the active substance may be the substance to be delivered to the user.
  • the active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response, as described in more detail hereinafter.
  • the active substance may for example be selected from nutraceuticals, nootropics, psychoactives.
  • the active substance maybe naturally occurring or synthetically obtained.
  • the active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.
  • the active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
  • the active substance is a legally permissible recreational drug.
  • the active substance comprises nicotine.
  • the active substance comprises caffeine, melatonin or vitamin B12.
  • the active substance may comprise or be derived from one or more botanicals or constituents, derivatives, or extract thereof.
  • botanical includes any material derived from plants, including, but not limited to, extracts, leaves, bark, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, shells or the like.
  • the material may comprise an active compound naturally existing in a botanical, obtained synthetically.
  • the material may be in the form of liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, strips, sheets, or the like. Examples of such botanicals can be found in the list disclosed hereinafter.
  • the substance to be delivered may comprise a flavour.
  • flavours can be found in the list outlined hereinafter.
  • the active substance or substance in the material 1 may form an aerosol when heated during use and so may be considered to be an aerosol former material.
  • a component 2 for an aerosol provision article 3 for use in an aerosol provision device 30 may be for use in a non-combustible aerosol provision device 30.
  • the component 2 comprises a material 1 comprising a plurality of fibres 5 comprising regenerated cellulose.
  • the component also comprises an aerosol-modifying agent release component 40.
  • the aerosol -modifying agent release component 40 may be surrounded by the plurality of regenerated cellulose fibres 5.
  • the component 2 of the current aspect of the present invention shown in Fig. 6 is similar to the component 2 of the previously described aspects of a component shown in Figs. 1 to 5 and so a detailed description thereof will be omitted herein. Furthermore, similar features and components will retain their terminology and reference numerals.
  • the aerosol-modifying agent release component 40 may be provided within the body of the material 1 within the component 2.
  • the aerosolmodifying agent release component 40 may be in the form of an additive release component in the form of a capsule 41.
  • the plug wrap 24 may comprise an oil-resistant plug wrap.
  • the aerosol-modifying agent release component 40 may be provided in other forms, such as material injected into the body of the material 1 of the component 2 or provided on a thread, for instance a thread carrying a flavourant or other aerosolmodifying agent, which may also be disposed within the body of the material 1 of the component 2.
  • the aerosol-modifying agent release component 40 may be a capsule 41.
  • the capsule 41 may be a breakable capsule.
  • the breakable capsule 41 may have a solid, frangible shell 42 surrounding a liquid payload 43.
  • the component 2 comprises a single capsule 41.
  • the component 2 may comprise a plurality of capsules 41.
  • the component 2 may comprise two, or three, or more capsules 41.
  • the capsule 41 may be entirely embedded within the body of the material 1 of the component 2. In other words, the capsule 41 may be completely surrounded by the material 1 forming the component 2.
  • the body of material 1 of the component 2 may be sufficiently uniform such that the capsule 41 cannot be seen from an end of the component 2.
  • the length of the component 2, and therefore the body of material 1 may be increased to accommodate the number of capsules 41 included.
  • the individual capsules 41 may be the same as each other, or may differ from one another in terms of size and/or capsule payload 42.
  • the capsule 41 may have a core-shell structure. In other words, the capsule 41 may comprise the shell 42 encapsulating a liquid payload 43.
  • the liquid payload 43 may be a liquid agent, for instance a flavourant or other agent, which can be any one of the flavourants or aerosol-modifying agents described herein.
  • the shell 42 of the capsule 41 can be ruptured by a user to release the flavourant or other agent into the material 1 forming the body of the component 2.
  • the capsule 41 may be substantially spherical.
  • the spherical capsule 41 may have a diameter of about 3 mm.
  • different shapes and sizes of capsules 41 may be used.
  • the aerosol-modifying agent release component 40 may be substantially cylindrical in shape.
  • the capsule 41 may have a diameter less than 4 mm, or less than 3.5 mm, or less than 3.25 mm.
  • the capsule 41 may have a diameter greater than about 3.25 mm, for example greater than 3.5 mm, or greater than 4 mm.
  • the total weight of the capsule 41 may be in the range of about 10 mg to about 50 mg.
  • the capsule 41 may be located at a longitudinally central position within the material 1 of the component 2. However, in some embodiments, the capsule 41 may be located at a non-longitudinally central position within the material 1 of the component 2. That is, the capsule 41 may located closer to the upstream end of the component 2 than to the downstream end of the component 2.
  • the capsule 41 may be positioned so that its centre is 5 mm from the upstream end of the component 2 and 7 mm from the downstream end of the component 2. This positioning of the capsule 41 may assist with ensuring that the capsule 41 cannot be seen from the downstream end of an aerosol provision article 3.
  • the shell 42 is formed from a barrier material.
  • the barrier material may be frangible.
  • the capsule 41 may be crushed or otherwise fractured or broken by the user to release the encapsulated aerosol-modifying agent payload. Typically, the capsule 41 is broken immediately prior to use but the user can select when to release the aerosol-modifying agent.
  • breakable capsule refers to a capsule 41, wherein the shell 42 can be broken by means of pressure to release the liquid payload 43 in the core. More specifically, the shell 42 can be ruptured under the pressure imposed by the user’s fingers when the user wants to release the liquid payload 43 in the core of the capsule 41.
  • the barrier material forming the shell 42 may be heat resistant.
  • the shell 42 will not rupture, melt, or otherwise fail at the temperature reached at the capsule 41 site during operation of the aerosol provision article 3.
  • the capsule 41 may be a degradable capsule. That is, the capsule 41 may be configured to degrade to release the aerosol-modifying agent upon application of temperature over a predetermined threshold. In some embodiments, the capsule 41 may be configured to degrade to release the aerosol-modifying agent upon the application of moisture over a predetermined threshold.
  • the component 2 comprising an aerosol-modifying agent release component 40 may be formed by extruding a plurality of fibres 5 comprising regenerated cellulose, hydroentangling the fibres 5 to form a non-woven sheet of material 1, receiving the non-woven sheet of material 1 and inserting an aerosol-modifying agent release component 40 onto the non-woven sheet of material 1, and processing the non-woven sheet of material 1 such that the aerosol-modifying agent release component 40 is surrounded by the non-woven sheet of material 1.
  • the described component 2 may be used in a non-combustible aerosol provision article 3, as generally shown in Fig. 3.
  • the aerosol provision article 3 may be for use as or as part of an aerosol provision system.
  • the aerosol provision article 3 comprises an aerosol generating material 13.
  • the aerosol generating material 13 comprises at least one aerosol forming material.
  • the aerosol provision article 3 further comprises a component 2 comprising an aerosol-modifying agent release component 40, as described above.
  • the aerosol provision article 3 may comprise multiple components 2.
  • Each of the components 2 provided may comprising one or more aerosol-modifying release components 40.
  • only one or some of the multiple components 2 may comprising one or more aerosol-modifying release components 40. Referring now to Fig.
  • a material 71 for use as a component 2 in an aerosol provision article 3.
  • the material 71 comprises a plurality of substrate sheets 72, 73 layered upon each other. At least one of the plurality of substrate sheets 72, 73 is formed from either: a plurality of regenerated cellulose fibres; or paper.
  • the material 71 of the current aspect of the present invention shown in Fig. 6 is similar to the component 2 of the previously described aspects of a material 1 shown in Figs. 1 to 5 and so a detailed description thereof will be omitted herein. Furthermore, similar features and components will retain their terminology and reference numerals. In addition, it will be appreciated that the features and components of the previously described material 1 may be incorporated into the material 71 of the present aspect and vice versa.
  • the material 71 of the present invention may be a non-woven sheet of material 71 comprising a plurality of regenerated cellulose fibres 5, as previously described.
  • each of the plurality of substrate sheets 72, 73 may be formed from a non-woven sheet of material 1 comprising a plurality of regenerated cellulose fibres.
  • the regenerated cellulose fibres may be viscose or lyocell or a combination of the two.
  • the material 71 of the present invention may be a paper material. That is, each of the plurality of substrate sheets 72, 73 may be formed from a sheet of material 1 comprising paper.
  • At least one of the plurality of substrate sheets 72 may be formed from a non-woven sheet of material 1 comprising a plurality of regenerated cellulose fibres and at least one of the plurality of substrate sheets 73 may be formed from a sheet of material comprising paper. It will also be appreciated that in some embodiments at least one of the plurality of substrate sheets 72, 73 may be formed from a non-regenerated cellulose material and a non-paper material.
  • at least one of the plurality of substrate sheets 72, 73 may be formed from an aerosol generating material, such as, for example, but not limited to, a tobacco material, a botanical recon material, an amorphous solid material, or a charcoal paper.
  • the substrate sheet(s) 73 of non regenerated cellulose material and non-paper material may be located between outer substrate sheets 72, 74 of regenerated cellulose material and/or paper material 72, 74.
  • the total weight of the plurality of substrate sheets 72, 73 may be in the range of about 40 gsm to about 90 gsm. In some embodiments, the plurality of substrate sheets 72, 73 may have the same weight.
  • the material 71 may comprise three substrate sheets 72, 73, 74 and each of the substrate sheets 72, 73, 74 may have a weight of about 15 gsm.
  • At least one of the plurality of substrate sheets 72, 73, 74 may have a different weight to at least one other of the plurality of substrate sheets 72, 73,
  • the material 71 may comprise three substrate sheets 72, 73, 74. Two of the substrate sheets 72, 74 may have a weight of about 20 gsm and the other substrate sheet 73 may have a weight of about 10 gsm. In some embodiments where at least one of the plurality of substrate sheets 73 has a different weight to the others of plurality of substrate sheets 72, 74, the substrate sheet(s) with the lower weight may be located between the substrate sheets 72, 74 with the higher weight. This arrangement produces a material 71 with better runnability through the manufacturing apparatus (not shown) as the apparatus only contacts the substrate sheets with a higher weight which are structurally stronger.
  • one or more but fewer than all of the multiple sheets of material can comprise an aerosol modifying additive.
  • the aerosol modifying additive can, for instance, be an aerosol-former material or an active substance, or both an aerosol- former material and an active substance. That is, in some embodiments, at least one of the plurality of substrate sheets may comprise an aerosol modifying additive. In some embodiment, at least one of the plurality of substrate sheets may be free from an aerosol modifying additive.
  • one or more of the portions of at least one of the sheet material can be treated with an aerosol modifying additive such as a flavour, an adsorbent such as charcoal granules, an aerosol-former material as defined herein and/or an active substance as defined herein, such as nicotine.
  • an aerosol modifying additive such as a flavour, an adsorbent such as charcoal granules, an aerosol-former material as defined herein and/or an active substance as defined herein, such as nicotine.
  • treating one or more, but fewer than all, of the portions can enable the location of the aerosol modifying agent to be localised to a particular location within the body of material, or help to limit its migration within the body of material. That is, in some embodiments,
  • the component 2 is formed from the material 71 previously described.
  • the component 2 comprising a plurality of substrate sheets 72, 73, 74 gathered into a substantially prismal shape.
  • the shape may be generally cylindrical.
  • At least one of the plurality of substrate sheets 72, 73, 74 is formed from regenerated cellulose or paper.
  • the filtration efficiency of the component 75 can be increased. That is, by using a plurality of substrate sheets 72, 73, 74 with a lower weight (gsm), the material 71 can be gathered in a more uniform manner. This is due to the lower strength of the individual substrate sheets 72, 73, 74, which makes them more pliable.
  • the component 75 may comprise a plurality of channels 76 formed by the gaps between the folds of the substrate sheets 72, 73, 74. As a result, the component 75 comprises a smaller variability in channel 76 size, i.e. gaps between the folds of the material 71.
  • This reduction in channel 76 variability reduces the likelihood of a path through the component 75 that has a much lower resistance than the other paths. As a result, aerosol is less likely to predominantly flow along the path of lower resistance. This means that the flow through the component is more uniform and a greater volume of flow is present in each channel 76. As aerosol flows more uniformly, it means that each of the channels 76 have a more even amount of aerosol flowing through them. Therefore, the filtration efficiency is improved because areas of the component 75 that would normally not receive larger flow volumes when using a single heavier sheet now can filter a larger amount of aerosol.
  • the present aspect of the present invention also provides a method of forming the component 75.
  • the method comprises providing a material 71 comprising a plurality of substrate sheets 72, 73, 74 layered upon each other and gathering the material into a prismal shaped component 75. At least one of the plurality of substrate sheets 72, 73, 74 is formed from regenerated cellulose or paper.
  • a component 52 for an aerosol provision article there is provided a component 52 for an aerosol provision article.
  • the component 52 maybe for a non-combustible aerosol provision article 3 for use in a non-combustible aerosol provision device 30.
  • the component 52 comprises a body of material 54 having an annular cross-section.
  • the annular body of material 54 comprises a plurality of fibres 5 formed from regenerated cellulose.
  • the annular body of material 54 may form an outer section 54 of the component 52.
  • the annular body of material 54 may extend longitudinally through the component 52.
  • the component 52 may further comprise a core section 53 extending longitudinally.
  • the outer section 54 may extend longitudinally and around the core section 53.
  • the outer section 54 is formed from a material 1 comprising a plurality of fibres 5 formed from regenerated cellulose.
  • the component 52 of the current aspect of the present invention shown in Fig. 9 is similar to the component 2 of the previously described aspects of a component shown in Figs. 1 to 7 and so a detailed description thereof will be omitted herein. Furthermore, similar features and components will retain their terminology and reference numerals. In addition, it will be appreciated that the features and components of the previously described components 2 may be incorporated into the component 52 of the present aspect and vice versa.
  • the core section 53 of the component 52 may extend longitudinally along the length of the longitudinal axis X of the component 52. In the present embodiment, the core section 53 may extend the length of the component 52.
  • the outer section 54 may extend longitudinally along the length of the longitudinal axis X of the component 52. In the present embodiment, the outer section 54 may extend the length of the component 52.
  • the component 2 may have a length in the range of about 4 mm to about 12 mm. In some embodiments, the component 2 may have a length in the range of about 6 mm to about 8 mm.
  • the outer section 54 may comprise a first end surface 56 and an opposing second end surface 57. In the present embodiment, the first end surface 56 may extend in the same plane as the proximal end of the component 52, and the second end surface 57 may extend in the same plane as the distal end of the component 52. In the present embodiment, the first and second end surfaces 56, 57 may be congruent.
  • the outer section 54 may surround the core section 53. Thus, the core section 53 may be located radially inward of the outer section 54.
  • the outer section 54 is formed from the material 1 comprising a plurality of regenerated cellulose fibres 5. That is, the material 1, as previously described, may be processed to form the outer section 54 of the component 52.
  • the material 1 that forms the outer section 54 of the component 52 may be a non-woven sheet material 1 with or without longitudinal slits and having any of the features of the embodiments previously discussed.
  • the core section 53 may comprise a first material 61.
  • the first material 61 may be formed from, for example, but not limited to, paper, or a regenerated cellulose material, such as lyocell, viscose, rayon, viscose rayon, cupro, and modal.
  • the core section 53 may take the form of a hollow tubular element 62. That is, the material that forms the core section 53 may be formed into a hollow tubular element such as a tube 62.
  • the hollow tubular element 62 may comprise a cavity 64. The cavity 64 may be located centrally in the core section 53.
  • the hollow tubular element 62 may have a wall thickness in the range of about 0.5 mm to about 3 mm. In some embodiments, the hollow tubular element 62 may have a wall thickness in the range of about 1 mm to about 2.5 mm. In some embodiments, the hollow tubular element 62 may have a wall thickness in the range of about 1.2 mm to about 1.82 mm. In some embodiments, the hollow tubular element 62 may have a wall thickness in the range of about 1 mm to about 1.5 mm In some embodiments, the cavity 64 may have a diameter in the range of about 2.5 mm to about 5 mm. In some embodiments, the cavity 64 may have a diameter in the range of about 3 mm to about 4.5 mm.
  • the core section 53 and the outer section 54 of the component 52 may be formed coaxially. That is, the longitudinal axis extending through the centre of the core section 53 of the component 52 may be coincident with the longitudinal axis extending through the centre of the outer section 54 of the component 52.
  • the outer section 54 may have a cross-section that is annular in shape in a plane perpendicular to its longitudinal axis.
  • the first and second end surfaces 56, 57 may have an annular cross-section.
  • the hollow tube 62 may also have a cross-section that is annular in shape in a plane perpendicular to its longitudinal axis.
  • the cavity 64 may have a generally circular cross-section in a plane perpendicular to its longitudinal axis.
  • the cross-sectional shapes of the outer section 54, hollow tubular element 62, and cavity 64 may be other than annular and circular.
  • the core section 53 may be formed by the cavity 64 only. That is, the core section 53 may be formed by the cavity 64 defined by an inner surface of the annular shaped outer section 54 and the hollow tubular element 62 may be omitted. More specifically, the core section 53 may be not be formed by a first material and instead may be formed by the absence of material within the outer section 54.
  • the annular body of material 54 may also be circumscribed by a plug wrap.
  • the plug wrap may have a weight over greater than 50 gsm or greater than 6ogsm.
  • the component 52 may have a hardness in the range of about 85% to about 97%. In some embodiments, the component 52 may have a hardness in the range of about 88% to about 96%.
  • the inner circumferential surface of the component 52 may comprise at least a partially layer of amorphous solid material, as previously described herein.
  • a partial or complete layer may be applied to the inner circumferential surface of the outer section 54.
  • the amorphous solid material may form the core section.
  • the amorphous solid material may be coated on the inner circumferential surface of the core section 53.
  • the component 52 described above may be utilised in various ways in an article according to the present invention, as shown in Figs. 10, 11, and 12.
  • the component 52 may be used as a mouth-end segment of a filter element of an article, as shown in Fig. 10, or an upstream filter segment in a filter element, as shown in Fig. 11, or as a downstream aerosol generating component, as shown in Fig. 12.
  • the annular body of material 54 forming the component 52 may comprise a plurality of fibres 5 formed from regenerated cellulose and a binder, as previously described herein.
  • the annular body of material 54 of regenerated cellulose fibres and binder may have a bulk density in the range of about 0.7 g/cm3 to about 0.9 g/cm3, preferably about 0.8 g/cm3.
  • the hardness of the annular body of material 54 of regenerated cellulose fibres and binder may be in the range of about 75 % to about 98 % for an unwrapped material and in the range of about 85 % to about 99% for a wrapped material.
  • a wrapper circumventing the annular body of material 54 may have a weight of greater than about 60 gsm.
  • the annular body of material 54 may be formed from a plurality of substrate sheets layered upon each other, as described in relation to Fig. 7.
  • each of the plurality of substrate sheets may be formed from a plurality of regenerated cellulose fibres.
  • at least one of the plurality of substrate sheets may be formed from paper.
  • the aerosol provision article 10 comprises a rod 12 of aerosol generating material 13 and a filter element 22.
  • the filter element comprises a first segment formed by a first component 2 and a second segment formed by a second component 52.
  • the first component 2 is located upstream of the second component 52. Therefore, the second component 52 forms the mouth end of the aerosol provision article 10’ and the first component 2 abuts the rod 12 of aerosol generating material 13.
  • the first component 2 may be a component 2 as described in relation to any one of Figs. 1 to 8.
  • the first segment may be formed by a known filter segment.
  • the component 52 may be a component as described in relation to Fig. 9.
  • Fig. 11 a cross-sectional view of an aerosol provision article 10” is shown.
  • the aerosol provision article 10 comprises a rod 12 of aerosol generating material 13 and a filter element 22.
  • the filter element comprises a first segment formed by a first component 52 and a second segment formed by a second component 2.
  • the first component 52 is located upstream of the second component 2. Therefore, the second component 2 forms the mouth end of the aerosol provision article 10”, and the first component 52 abuts the rod 12 of aerosol generating material 13.
  • the first component 52 may be a component as described in relation to Fig. 9. In this configuration, the component 52 may be referred to as a cooling section or segment.
  • the second component 2 may be a component 2 as described in relation to any one of Figs. 1 to 8. Alternatively, the second segment may be formed by a known filter segment.
  • the aerosol provision article 10 comprises a rod 12 of aerosol generating material 13 and a filter element 22.
  • the filter element 22 comprises a segment formed by a component 2 as described in relation to any one of Figs. 1 to 8. Alternatively, the filter element may be formed by a known filter segment.
  • the rod 12 of aerosol generating material 13 is formed by a component 52 as described with reference to Fig. 9. Thus, the component 52 forms the upstream end of the aerosol provision article 10”’.
  • the component 52 may comprise an aerosol former material for generating aerosol when heated during use.
  • the cavity 56 of the component 52 may be configured to receive a heating element of an aerosol provision device (not shown).
  • a perspective view of an aerosol provision article 83 comprising a component 91, 92 formed from a material 1 is shown.
  • a component 91, 92 for an aerosol provision article 83 comprising a body of material 1 comprising a plurality of fibres 5 comprising regenerated cellulose.
  • the body of material 1 further comprises an adsorbent material 84.
  • the adsorbent material 84 may comprise at least one of charcoal, silica, and CR20.
  • the component 91, 92 of the current aspect of the present invention shown in Fig. 13 is similar to the component 2, 52 of the previously described aspects of a component shown in Figs. 1 to 9, and so a detailed description thereof will be omitted herein. Furthermore, similar features and components will retain their terminology and reference numerals. In addition, it will be appreciated that the features and components of the previously described components 2, 52 may be incorporated into the component 9192 of the present aspect and vice versa.
  • the aerosol provision article 83 shown in Fig. 13 maybe a regular, king size format, namely having a length in the range of about 75 mm to about 91 mm and a circumference in the range of about 23 mm to about 25 mm.
  • the aerosol provision article 83 may include a rod 85 of aerosol generating material 86 wrapped in a wrapping material 87, connected longitudinally to a filter 88 by a tipping material 89.
  • the filter 88 may comprise a first segment 91 and a second segment 92.
  • the first segment 91 may be the same as the components 2, 52 described previously herein.
  • the first segment 91 may be located at the mouth-end of the filter 88 and may be wrapped in a first plug wrap 93.
  • the second segment 92 may be generally the same as the components 2, 52 described previously herein.
  • the second segment 92 may be located at the aerosol-generating material end of the filter 88.
  • the second segment 92 may comprise absorbent material in the form of a plurality of regenerated cellulose fibres 5, as previously described herein, having adsorbent material 84 dispersed therein.
  • the second segment 92 maybe wrapped in a second plug wrap 94.
  • the adsorbent material 84 may comprise activated carbon particles.
  • the activated carbon particles may be, for example, but not limited to, coconut carbon provided in a 30/70 mesh size. However, other carbons and/or sizes can be used. For instances, particles with diameters in the range of approximately 0.1 mm to approximately 1.0 mm, or of approximately 0.2 mm to approximately 0.9 mm, or of approximately 0.2 mm to approximately 0.8 mm, or of approximately 0.2 mm to approximately 0.7 mm, or of approximately 0.2 mm to approximately 0.6 mm, or of approximately 0.3 mm to approximately 0.9 mm, or of approximately 0.3 mm to approximately 0.8 mm, or of approximately 0.3 mm to approximately 0.7 mm, or of approximately 0.3 mm to approximately 0.6 mm can be used.
  • the second segment 92 may have about 12 mg of adsorbent material 84 per millimetre of length.
  • the second segment 92 may have about 4 mg of absorbent material, i.e. fibres of regenerated cellulose 5, per millimetre of length.
  • the amount of adsorbent material 84 can be anywhere in the range from 6 mg to 16 mg per mm length on average, or from 7 mg to 16 mg, 8 mg to 16 mg, 9 mg to 16 mg, 10 mg to 16 mg, 11 mg to 16 mg, 12 mg to 16 mg, or 13 mg to 16 mg per mm length.
  • the amount of absorbent material i.e.
  • fibres of regenerated cellulose 5 may be from about 1.5 mg to about 8 mg per mm length on average, or from 1.5 mg to 7 mg, 1.5 mg to 6 mg, 1.5 mg to 5 mg, or 1.5 mg to 4 mg.
  • Each of the ranges given above may be for a regular format filter 88, i.e. having a circumference of about 23 mm to 25 mm. It has been found that these parameters enable the filter 88 to exhibit desirable pressure drop and hardness levels for consumer acceptable aerosol provision articles 83, while increasing the level of adsorbent material 84 or other granular additive in the filter 88 over known filters.
  • An increase in the pressure drop and/or hardness percentage resulting from an increase in the amount of adsorbent per mm in a component 92 for a filter 88 can be offset by a decrease in the amount of absorbent, i.e. fibres of regenerated cellulose 5, per mm. Also, an increase in the pressure drop and/or hardness percentage resulting from an increase in the amount of absorbent per mm in a component 92 of a filter 88 can be offset by a decrease in the amount of adsorbent material 84 per mm.
  • the amount of adsorbent material 84 in mg, C Intel, per mm in length for a regular format aerosol provision article 83, and the amount of absorbent material, i.e. fibres of regenerated cellulose 5, in mg, T w , per mm in length for a regular format aerosol provision article 83, can be determined in accordance with the range:
  • adsorbent and absorbent weights in mg per mm of length for a regular circumference aerosol provision article, in other ranges, including 10 ⁇ (C Intel + T w ) ⁇ 19, 10 ⁇ (C Intel + T w ) ⁇ 18, 10 ⁇ (C Intel + T w ) ⁇ 17, 11 ⁇ (C Intel + T w ) ⁇
  • T w can be greater than a minimum level.
  • the absorbent level can be equal to or greater than about 1.5 mg per mm in some embodiments of the invention.
  • the adsorbent material 84 level can be equal to or greater than 6 mg per mm in some embodiments of the invention. Both minimum levels being for a regular circumference aerosol provision article 84, of about 23 mm to about 25 mm. The above ranges can also be applied for use with granular additives other than adsorbents, such as certain flavourants.
  • the second segment 92 may be manufactured using a filter manufacturing apparatus such as the Turmalin apparatus from Hauni Maschinenbau AG in Germany.
  • the absorbent weight per mm in less than 3.5 mg per mm and/or the adsorbent material 84 weight per mm is less than gmg per mm (both for a regular circumference aerosol provision article 83), and/or the combined adsorbent material 84 and absorbent weight per mm is at the lower end of the above ranges, for instance 12 mg per mm or lower, the inventors have determined that a reduction in hardness caused by these low weights can be offset by using, for example, a stiffer plug wrap and/or stiffer tipping material surrounding the component.
  • the plug wrap and/or tipping could have a basis weight of greater than 30 g/m 2 , greater than 40 g/m 2 , greater than 50 g/m 2 , greater than 60 g/m 2 , greater than 70 g/m 2 , or greater than 80 g/ m 2 .
  • a basis weight of greater than 30 g/m 2 , greater than 40 g/m 2 , greater than 50 g/m 2 , greater than 60 g/m 2 , greater than 70 g/m 2 , or greater than 80 g/ m 2 .
  • multiple layers of plug wrap and/ or tipping material can be used.
  • Known filters comprising carbon particles dispersed in continuous cellulose acetate tow cut according to the required segment length, in the regular format, generally have an upper carbon loading limit of 5 mg/mm in order to keep the pressure drop at levels desirable for consumers. Higher loading could result in the pressure drop being too high. If it was desired to have a higher loading then it was usually necessary to use a cavity triple filter, having mouth -end and aerosol generating material end cellulose acetate tow sections with a carbon filled cavity between them. Such cavity filters result in the removal of a quantity of cellulose acetate for a given fibre length and so this can have a negative effect, for example, on particular aspects of filtration and phenol sensitivity. As such, there are clear advantages to being able to increase the loading of additives without causing too great a pressure drop and without the removal of the filtration material of regenerated cellulose fibres.
  • the inventors have recognised that by using randomly oriented discrete short length regenerated cellulose fibres for forming a component 82, such as a filter segment 92, manufactured using a filter manufacturing apparatus, such as the Turmalin, and by selecting the amount of adsorbent material 84 to be in the range from about 6 mg to about 16 mg per mm on average, and the amount of absorbent, i.e. fibres of regenerated cellulose 5, to be in the range of about 1.5 mg to about 8 mg per mm on average (or within the other ranges and limits outlined previously), for a regular circumference aerosol provision article 83, improved filter components 92 can be provided whilst maintaining acceptable pressure drop and filter hardness parameters.
  • a schematic illustration of a component making apparatus too such as the Turmalin apparatus, for use in manufacturing filters.
  • the components formed in the component making apparatus too may be used a filter segments.
  • a source 101 of a plurality of regenerated cellulose fibres 5 is supplied to the filter making apparatus, which comprises a plurality of modules 102- 106.
  • a feeder module 102 receives the supply of regenerated cellulose fibres 5 from which it is fed into a cutter and randomiser 23 in embodiments where regenerated cellulose fibre tow is supplied to the apparatus too.
  • the cutter and randomiser 23 may cut the regenerated cellulose fibres 5 into short staple lengths, as previously described.
  • a filter bander 104 comprises a vacuum band onto which the regenerated cellulose fibres 5 are provided. This is fed into a rod former 105, for forming the band of regenerated cellulose fibres 5 into a rod which is wrapped with a plug wrap. Finally, a component cutter 106 is used to cut the rod into components of a desired length.
  • the filter bander 104 may comprise a carding unit which distributes the material 1 onto the vacuum band, and a plurality of hoppers for applying additives, for instance in the form of granules or additional fibres. There may also be an add-back system which can be used if required to feed a third additive into the band of regenerated cellulose fibres 5. The add-back system may alternatively be used to feed any loose cut filter material back into the feeder module 102 to reduce wastage.
  • the filter bander 104 may comprise metering rollers which are adjustable to permit control over the additive loading and to ensure uniformity of the band of regenerated cellulose fibres.
  • the filter bander 24 may also comprise a jet inserter for enabling liquids such as flavours to be injected directly into the component 82.
  • the Turmalin apparatus too may operate as follows: the feeder module 102 feeds the regenerated cellulose fibre tow 5 into the cutter and randomiser 103. Where the material 1 as described above is used, the cutter and randomiser 103 may be omitted.
  • the regenerated cellulose fibres 5 are transferred to the carding unit of the filter bander 104 from which it is sucked onto the vacuum band.
  • Additives are fed into the air stream carrying the regenerated cellulose fibres 5, and the rod former 25 forms the band into a continuous component 92, which is bound by a filter plug wrap.
  • the segment cutter 106 cuts the continuous segment, comprising regenerated cellulose fibres 5, into segments of a desired length.
  • Turmalin apparatus too include: the inclusion of additives, for example carbon, at higher loadings; retention of the activity of carbon additives because without plasticisers such as triacetin there is no poisoning of the charcoal; and a longer product life.
  • additives for example carbon
  • the additive in the previously described embodiments has been described as particles of adsorbent material 84, in particular active carbon, other adsorbent materials 84, or other additives, can be used.
  • the adsorbent could be an ion exchange resin, such as CR20, or other materials such as zeolite, silica gel, meerschaum, aluminium oxide (activated or not), carbonaceous resin, magnesium silicate, including Sepiolite (Mg 4 Si6Oi 3 (OH) 2 -6H 2 O) or combinations thereof with or without activated carbon.
  • a flavourant for example, menthol crystals, or humectant particles
  • humectant particles can be used.
  • Turmalin apparatus or similar, enables various component designs to be made which offer additional improvements and advantages.
  • the aerosol provision article ill shown is similar to the aerosol provision article 111 illustrated in Fig. 13 and described previously herein.
  • the first segment 91 may be a segment 2 comprising regenerated cellulose fibres 5 as previously described with reference to any of Fig. 2 to Fig. 13.
  • the second segment 92 may comprise a first absorbent material 113 and a second absorbent material 114 wrapped in a second plug wrap 94.
  • the second absorbent material 114 maybe dispersed within the first absorbent material 113-
  • the first absorbent material 113 may comprise a plurality of regenerated cellulose fibres 5 having a denier per filament in the range of about 1 to about 10.
  • the second absorbent material 114 may comprise a plurality of regenerated cellulose fibres 5 having a denier per filament in the range of about 20 to about 30.
  • the second segment 92 may be manufactured using the Turmalin apparatus too.
  • the second segment 92 may be manufactured by supplying the first absorbent material 113 to the feeder 102 and by adding the second absorbent material 114 via one of the additive hoppers in the filter bander 104.
  • supplies of the first and second absorbent materials 113, 114 can each be provided to the feeder 102 of the apparatus too.
  • the second absorbent material 114 has been previously described as a plurality of regenerated cellulose fibres 5, alternative materials can also be used.
  • the fibres of the second absorbent material 114 may comprises polyvinyl alcohol (PVOH), polylactic acid (PLA), poly (e-caprolactone) (PCL), poly (1-4 butanediol succinate) (PBS), poly (buiylene adipate-co-terephthalate) (PBAT), starch based materials, paper, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof.
  • PVOH polyvinyl alcohol
  • PLA polylactic acid
  • PCL poly (e-caprolactone)
  • PBS poly (1-4 butanediol succinate)
  • PBAT poly (buiylene adipate-co-terephthalate)
  • starch based materials paper, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof.
  • Nano-fibres have a sufficiently high surface area to volume ration to have the potential for catalytic activity. Such nanofibres may be added to a filter using the apparatus of Fig. 14, for instance at the time of additive loading through the one or more hoppers in the filter bander 104 such that the nano-fibres are metered into the airstream within the filter bander 104.
  • Fig. 16 shows a schematic illustration of an aerosol provision article ill having a component 92 comprising a nano-fibre 115 carrying an additive for enhancing or enabling the reduction of at least one component of the main stream aerosol drawn through the aerosol provision article ill when in use.
  • the aerosol provision article ill shown in Fig. 16 is essentially the same as the aerosol provision article ill shown in Fig.
  • the nano-fibres 115 may comprise carbon nano-fibres 115a supporting zinc oxide (ZnO) particles acting as a catalytic agent 115b, for instance enhancing the reduction of HCN in the aerosol.
  • ZnO zinc oxide
  • other nano-fibre materials and/or other catalytic agents can be used, alone or in combination (including in combination with carbon and/or ZnO), such as gold (Au), for carbon monoxide (CO) reduction from the aerosol.
  • Au gold
  • CO carbon monoxide
  • the nano-fibres 115 can be of any suitable length for inclusion in a component 92, for instance between 1 mm and 15 mm, or from 5 mm to 12 mm.
  • the diameters of the nano-fibres 115 used may be from 25 nm to 900 nm, or from 50 nm to 500 nm, or from too nm to 300 nm.
  • FIG. 17 a schematic illustration of an aerosol provision article ill comprising a plurality of regenerated cellulose fibres 5 having a thread 116 extending therethrough is shown.
  • the aerosol provision article ill shown in Fig. 17 is essentially the same as the aerosol provision article 111 shown in Fig. 13 and so a detailed description thereof will be omitted herein. Furthermore, like features and components will retain the same terminology and reference numerals.
  • flavour to a component 82 can be achieved using a thread 116 as a carrier.
  • a thread insertion device (not shown) can be installed in a central portion of the filter vacuum band with a thread inserting needle cariying the thread into the axial region of the component 82 as it is formed.
  • Embodiments described herein involving the insertion of threads 116 into components 82 are particularly advantageous in slim and super slim formats, i.e. below 22 mm.
  • the thread 11 may extend axially through the second segment 92.
  • FIG. 18 a schematic illustration of an aerosol provision article ill comprising a plurality of regenerated cellulose fibres 5 having an aerosol-modifying agent release component 117 in the form of a capsule disposed therein is shown.
  • the aerosol provision article 111 shown in Fig. 18 is essentially the same as the aerosol provision article ill shown in Fig. 13 and so a detailed description thereof will be omitted herein.
  • like features and components will retain the same terminology and reference numerals.
  • the Turmalin apparatus 100 may be arranged to permit the inclusion of capsule 117 into a plurality of regenerated cellulose fibres 5 while ensuring uniform distribution of the capsule contents, such as flavour.
  • the capsules 117 may be microcapsules or other encapsulated material.
  • Capsule whether larger capsules such as those with diameters between 3 mm and 8 mm, microcapsules, or other encapsulated materials, can be pushed into the plurality of regenerated cellulose fibres 5 in an apparatus too, such as the Turmalin apparatus, by directing the capsules 117 through a tube into the regenerated cellulose fibres 5 at the downstream end of the filter bander 104.
  • the capsules 117 can, for instance, be blown into the regenerated cellulose fibres 5 using high pressure gas, at a frequency corresponding to the speed of the filter bander 104, such that the capsules 117 are located in the resulting components 82, 92 at appropriate intervals, and components 82, 92 cut from the continuous rod contain the desired number of capsules 117.
  • microcapsules could be metered onto the filter band in a similar way to additives, using one of the additive hoppers previously described.
  • An aerosol-modifying agent release component having an encapsulated flavourant in the present embodiment in the form of a capsule 117, may be disposed within the second segment 92.
  • a schematic illustration of an aerosol provision article 83 comprising a plurality of regenerated cellulose fibres 5 having an aerosol-modifying agent release component 117 in the form of microcapsules disposed therein is shown.
  • An aerosol-modifying agent release component having an encapsulated flavourant, in the present embodiment in the form of microcapsules 118 may be disposed within the second segment 92.
  • FIG. 20 a schematic illustration of an aerosol provision article 83 comprising a plurality of regenerated cellulose fibres 5 having shredded material 119 disposed therein is shown.
  • the aerosol provision article 83 shown in Fig. 20 is essentially the same as the aerosol provision article 83 shown in Fig. 13 and so a detailed description thereof will be omitted herein.
  • like features and components will retain the same terminology and reference numerals.
  • other forms of flavour additive can be added to a filter comprising a plurality of regenerated cellulose fibres 5.
  • flavour additives could be added in botanical form, such as mint or tobacco leaves or other plant leaves, plant seed, or plant peels, etc.
  • Such additives can be added to the additive hoppers in the band former of the apparatus too and therefore metered into the regenerated cellulose fibres air stream as the filter band is formed or as the component is formed. Since, in some embodiments, no plasticiser is used, flavour release from botanical additives can be enhanced.
  • shredded materials 119 may be included within the material formed from a plurality of fibres 5 comprising regenerated cellulose.
  • sheet materials may include sheet materials formed from botanicals, such as mint or menthol, tobacco or reconstituted tobacco. A person skilled in the art will appreciate that the list provided is not limiting and that any suitable sheet material may be used.
  • the benefits of using such materials in shredded form are that they can improve the dispersibility of the material within the component 82, 92 and also improve the degradability of the component 82, 92. Furthermore, the use of new materials may be used to improve the performance of the component 82, 92 and/or modify characteristics of aerosol drawn through the component 82, 92.
  • the shredded material 119 may comprise a material formed from fibres of polyvinyl alcohol (PVOH), polylactic acid (PLA), poly (e-caprolactone) (PCL), poly (1-4 butanediol succinate) (PBS), poly (buiylene adipate-co-terephthalate) (PBAT), starch based materials, paper, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof.
  • PVOH polyvinyl alcohol
  • PLA polylactic acid
  • PCL poly (e-caprolactone)
  • PBS poly (1-4 butanediol succinate)
  • PBAT poly (buiylene adipate-co-terephthalate)
  • starch based materials paper, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof.
  • PVOH degradable or otherwise alternative fibres
  • regenerated cellulose fibres The inventors have also appreciated the potential for combining degradable or otherwise alternative fibres such as PVOH fibres with regenerated cellulose fibres 5.
  • PVOH is typically not used in conventional filter manufacture because PVOH cannot usually be crimped.
  • the inclusion of PVOH or other non-crimped fibres with regenerated cellulose fibres mean that this problem can be overcome. Using such material can result in a component with improved degradability and water solubility.
  • the feeder module 102 of the apparatus too may be arranged to feed two ropes of raw material into the cutter and randomiser 23.
  • the number of processing steps is reduced by not first turning the material into sheet material, and instead pulling the material straight is as tow.
  • the number of processing steps may be further reduced if the step for turning material in tow material is omitted.
  • the non-crimped fibres of other crimped fibres can be metered into the regenerated cellulose fibres 5 in the filter bander 104 using one of the additive hoppers described above.
  • a material 121 shown in Fig.
  • the material 121 comprises a first plurality of fibres 122 and a second plurality of fibres 123.
  • the first plurality of fibres 122 are formed from a first material.
  • the second plurality of fibres 123 are formed from a second material.
  • the first material is different from the second material.
  • the first plurality of fibres 122 may be formed from regenerated cellulose.
  • the regenerated cellulose fibres 122 may be the same as the regenerated cellulose fibres as previously described in the present application.
  • the second plurality of fibres 123 may be formed from regenerated cellulose.
  • the regenerated cellulose fibres 122 may be the same as the regenerated cellulose fibres as previously described in the present application.
  • the first plurality of fibres 122 may be formed from one of, for example, viscose, rayon, viscose rayon, and lyocell
  • the second plurality of fibres 123 may be formed from a different one of, for example, viscose, rayon, viscose rayon, and lyocell.
  • the second plurality of fibres 123 may be formed from a nonregenerated cellulose material.
  • the second plurality of fibres 123 may be formed from at least one of cellulose acetate, polylactic acid, and paper.
  • the material 121 may further comprise any of the aerosol former materials, binders, plasticisers, additives, active substances, or components as previously described in relation to the material 1 and components 2 of the previously described embodiments.
  • a component as shown in Fig. 2, comprising the material 121, shown in Fig. 21.
  • the component may be rod shaped.
  • the component may comprise any of the configurations as previously described in relation to the components of the previously described embodiments.
  • the component 2 formed from the material 121 may comprise an aerosol-modifying agent release component 40 surrounded by the material 121, as described in relation to Fig. 6.
  • the component 2 formed from the material 121 may be formed from a plurality of sheets of the material 121 layered upon each other and formed into a component, as described in relation to Figs. 7 and 8.
  • the component 2 formed from the material 121 may comprise a core section 53 extending longitudinally and an outer section 54 extending longitudinally around the core-section 53, wherein the outer section 54 is formed from the material 121, as described in relation to Fig. 9.
  • the term “delivery system” is intended to encompass systems that deliver at least one substance to a user, and includes: combustible aerosol provision systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for roll-your-own or for make-your-own cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes or other smokable material); and non-combustible aerosol provision systems that release compounds from an aerosol-generating material without combusting the aerosol-generating material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol-generating materials.
  • combustible aerosol provision systems such as cigarettes, cigarillos, cigars, and tobacco for pipes or for roll-your-own or for make-your-own cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes or other smokable material
  • non-combustible aerosol provision systems that release compounds from an aerosol-generating material without combus
  • a “combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is combusted or burned during use in order to facilitate deliveiy of at least one substance to a user.
  • the delivery system is a combustible aerosol provision system, such as a system selected from the group consisting of a cigarette, a cigarillo and a cigar.
  • the disclosure relates to a component for use in a combustible aerosol provision system, such as a filter, a filter rod, a filter segment, a tobacco rod, a spill, an aerosol-modifying agent release component such as a capsule, a thread, or a bead, or a paper such as a plug wrap, a tipping paper or a cigarette paper.
  • a component for use in a combustible aerosol provision system such as a filter, a filter rod, a filter segment, a tobacco rod, a spill, an aerosol-modifying agent release component such as a capsule, a thread, or a bead, or a paper such as a plug wrap, a tipping paper or a cigarette paper.
  • a “non-combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.
  • the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.
  • the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.
  • END electronic nicotine delivery system
  • the non-combustible aerosol provision system is an aerosol- generating material heating system, also known as a heat-not-burn system.
  • a heat-not-burn system is a tobacco heating system.
  • the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated.
  • Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine.
  • the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material.
  • the solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.
  • the non-combustible aerosol provision system may comprise a non- combustible aerosol provision device and a consumable for use with the non- combustible aerosol provision device.
  • the disclosure relates to consumables comprising aerosolgenerating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles throughout the disclosure.
  • the non-combustible aerosol provision system such as a non- combustible aerosol provision device thereof, may comprise a power source and a controller.
  • the power source may, for example, be an electric power source or an exothermic power source.
  • the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity to the exothermic power source.
  • the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.
  • the consumable for use with the non-combustible aerosol provision device may comprise aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosol-modifying agent.
  • the substance to be delivered comprises an active substance.
  • the active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response.
  • the active substance may for example be selected from nutraceuticals, nootropics, psychoactives.
  • the active substance may be naturally occurring or synthetically obtained.
  • the active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.
  • the active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
  • the active substance is a legally permissible recreational drug
  • the active substance comprises nicotine.
  • the active substance comprises caffeine, melatonin or vitamin B12.
  • the active substance may comprise one or more constituents, derivatives or extracts of cannabis, such as one or more cannabinoids or terpenes.
  • the active substance may be CBD or a derivative thereof
  • the active substance may comprise or be derived from one or more botanicals or constituents, derivatives or extracts thereof.
  • botanical includes any material derived from plants including, but not limited to, extracts, leaves, bark, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, shells or the like.
  • the material may comprise an active compound naturally existing in a botanical, obtained synthetically.
  • the material may be in the form of liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, strips, sheets, or the like.
  • Example botanicals are tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin, papaya, rose, sage, tea such as green tea or black tea, thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemaiy, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, maijoram, olive
  • the mint may be chosen from the following mint varieties: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v, Mentha spicata crispa, Mentha cardifolia, Memtha longifolia,
  • the active substance comprises or is derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is tobacco.
  • the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from eucalyptus, star anise, cocoa and hemp.
  • the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from rooibos and fennel.
  • the substance to be delivered comprises a flavour.
  • flavour and “flavourant” refer to materials which, where local regulations permit, may be used to create a desired taste, aroma or other somatosensorial sensation in a product for adult consumers. They may include naturally occurring flavour materials, botanicals, extracts of botanicals, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice (liquorice), hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed (anise), cinnamon, turmeric, Indian spices, Asian spices, herb, wintergreen, cheriy, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberiy, citrus fruits,
  • flavour materials e.g., tobacco, cannabis, licorice (li
  • the flavour may be imitation, synthetic or natural ingredients or blends thereof. They may be in any suitable form, for example, liquid such as an oil, solid such as a powder, or gas.
  • the flavour comprises menthol, spearmint and/or peppermint.
  • the flavour comprises flavour components of cucumber, blueberry, citrus fruits and/or redberry.
  • the flavour comprises eugenol.
  • the flavour comprises flavour components extracted from tobacco.
  • the flavour comprises flavour components extracted from cannabis.
  • the flavour may comprise a sensate, which is intended to achieve a somatosensorial sensation which are usually chemically induced and perceived by the stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or in place of aroma or taste nerves, and these may include agents providing heating, cooling, tingling, numbing effect.
  • a suitable heat effect agent may be, but is not limited to, vanillyl ethyl ether and a suitable cooling agent may be, but not alimited to eucolyptol, WS-3.
  • Aerosol-generating material is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol-generating material may, for example, be in the form of a solid, liquid or semi-solid (such as a gel) which may or may not contain an active substance and/or flavourants.
  • the aerosol-generating material may comprise one or more active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.
  • the aerosol-generating material may comprise a binder, such as a gelling agent, and an aerosol former material.
  • a substance to be delivered and/ or filler may also be present.
  • a solvent such as water, is also present and one or more other components of the aerosol-generating material may or may not be soluble in the solvent.
  • the aerosol-generating material is substantially free from botanical material.
  • the aerosol-generating material is substantially tobacco free.
  • the aerosol-generating material may comprise or be in the form of an aerosolgenerating film.
  • the aerosol-generating film may comprise a binder, such as a gelling agent, and an aerosol former material.
  • a substance to be delivered and/or filler may also be present.
  • the aerosol-generating film may be substantially free from botanical material.
  • the aerosol-generating material is substantially tobacco free.
  • the aerosol-generating film may have a thickness of about 0.015 mm to about 1 mm.
  • the thickness may be in the range of about 0.05 mm, 0.1 mm or 0.15 mm to about 0.5 mm or 0.3 mm.
  • the aerosol-generating film may be continuous.
  • the film may comprise or be a continuous sheet of material.
  • the sheet may be in the form of a wrapper, it may be gathered to form a gathered sheet or it may be shredded to form a shredded sheet.
  • the shredded sheet may comprise one or more strands or strips of aerosol-generating material.
  • the aerosol-generating film maybe discontinuous.
  • the aerosol-generating film may comprise one or more discrete portions or regions of aerosol-generating material, such as dots, stripes or lines, which may be supported on a support. In such embodiments, the support may be planar or non-planar.
  • the aerosol-generating film may be formed by combining a binder, such as a gelling agent, with a solvent, such as water, an aerosol-former material and one or more other components, such as one or more substances to be delivered, to form a slurry and then heating the slurry to volatilise at least some of the solvent to form the aerosolgenerating film.
  • a binder such as a gelling agent
  • a solvent such as water
  • an aerosol-former material such as one or more other components, such as one or more substances to be delivered
  • the sluriy may be heated to remove at least about 60 wt%, 70 wt%, 80 wt%, 85 wt% or 90 wt% of the solvent.
  • the aerosol-generating material may comprise or be an “amorphous solid”.
  • the aerosol-generating materiel comprises an aerosol-generating film that is an amorphous solid.
  • the amorphous solid may be a “monolithic solid”.
  • the amorphous solid may be substantially non-fibrous.
  • the amorphous solid may be a dried gel.
  • the amorphous solid is a solid material that may retain some fluid, such as liquid, within it.
  • the amorphous solid may, for example, comprise from about 50wt%, 6owt% or 70wt% of amorphous solid, to about 90wt%, 95wt% or ioowt% of amorphous solid.
  • the amorphous solid may be substantially free from botanical material.
  • the amorphous solid may be substantially tobacco free.
  • the aerosol-former material may comprise one or more constituents capable of forming an aerosol.
  • the aerosol-former material may comprise one or more of glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-Eiythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauiyl acetate, lauric acid, myristic acid, and propylene carbonate.
  • the one or more other functional materials may comprise one or more of a pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
  • the material may be present on or in a support, to form a substrate.
  • the support may, for example, be or comprise paper, card, paperboard, cardboard, reconstituted material, a plastics material, a ceramic material, a composite material, glass, a metal, or a metal alloy.
  • the support comprises a susceptor.
  • the susceptor is embedded within the material.
  • the susceptor is on one or either side of the material.
  • a consumable is an article comprising or consisting of aerosol-generating material, part or all of which is intended to be consumed during use by a user.
  • a consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosol-modifying agent.
  • a consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol-generating material to generate aerosol in use.
  • the heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.
  • a susceptor is a material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field.
  • the susceptor may be an electrically-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material.
  • the heating material may be magnetic material, so that penetration thereof with a vaiying magnetic field causes magnetic hysteresis heating of the heating material.
  • the susceptor may be both electrically-conductive and magnetic, so that the susceptor is heatable by both heating mechanisms.
  • the device that is configured to generate the varying magnetic field is referred to as a magnetic field generator, herein.
  • An aerosol-modifying agent is a substance, typically located downstream of the aerosol generation area, that is configured to modify the aerosol generated, for example by changing the taste, flavour, acidity or another characteristic of the aerosol.
  • the aerosol- modifying agent may be provided in an aerosol-modifying agent release component, that is operable to selectively release the aerosol-modifying agent.
  • the aerosol-modifying agent may, for example, be an additive or a sorbent.
  • the aerosol-modifying agent may, for example, comprise one or more of a flavourant, a colourant, water, and a carbon adsorbent.
  • the aerosol-modifying agent may, for example, be a solid, a liquid, or a gel.
  • the aerosol-modifying agent may be in powder, thread or granule form.
  • the aerosol-modifying agent may be free from filtration material.
  • An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol-generating material.
  • the aerosol generator is a heater configured to subject the aerosol-generating material to heat energy, so as to release one or more volatiles from the aerosol-generating material to form an aerosol.
  • the aerosol generator is configured to cause an aerosol to be generated from the aerosol-generating material without heating.
  • the aerosol generator may be configured to subject the aerosol-generating material to one or more of vibration, increased pressure, or electrostatic energy.

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  • Textile Engineering (AREA)
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Abstract

La présente invention concerne un matériau destiné à être utilisé en tant que composant dans un article de fourniture d'aérosol. Le matériau comprend une pluralité de fibres comprenant de la cellulose régénérée. Le matériau a une masse volumique apparente dans la plage allant d'environ 0,1 g/cm3 à environ 0,4 g/cm3. La présente invention concerne également un composant destiné à être utilisé dans un article de fourniture d'aérosol. Le composant comprend le matériau. La présente invention concerne également un article comprenant le composant, un système de fourniture d'aérosol comprenant l'article, et un procédé de formation du matériau.
PCT/GB2024/052041 2023-08-01 2024-08-01 Matériau destiné à être utilisé en tant que composant pour un article de fourniture d'aérosol Pending WO2025027337A1 (fr)

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GBGB2311829.2A GB202311829D0 (en) 2023-08-01 2023-08-01 A material for use as a component for an aerosol provision article
GB2311829.2 2023-08-01

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000037182A (ja) * 1998-05-19 2000-02-08 Japan Tobacco Inc シガレット用フィルタ―
US20100093241A1 (en) * 2008-04-30 2010-04-15 Xyleco, Inc. Textiles and methods and systems for producing textiles
WO2014034071A1 (fr) * 2012-08-31 2014-03-06 東レ株式会社 Composition de résine thermoplastique et article moulé
US20160270437A1 (en) * 2013-12-20 2016-09-22 Philip Morris Products S.A. Smoking article filter including degradable filter component
WO2020226181A1 (fr) * 2019-05-09 2020-11-12 旭化成株式会社 Tissu non-tissé en fibres cellulosiques régénérées, feuille imprégnée de solution médicamenteuse, et masque facial
WO2022113156A1 (fr) * 2020-11-24 2022-06-02 日本たばこ産業株式会社 Segment de filtre d'inhalateur d'arôme et procédé pour la fabrication de celui-ci et inhalateur d'arôme

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000037182A (ja) * 1998-05-19 2000-02-08 Japan Tobacco Inc シガレット用フィルタ―
US20100093241A1 (en) * 2008-04-30 2010-04-15 Xyleco, Inc. Textiles and methods and systems for producing textiles
WO2014034071A1 (fr) * 2012-08-31 2014-03-06 東レ株式会社 Composition de résine thermoplastique et article moulé
US20160270437A1 (en) * 2013-12-20 2016-09-22 Philip Morris Products S.A. Smoking article filter including degradable filter component
WO2020226181A1 (fr) * 2019-05-09 2020-11-12 旭化成株式会社 Tissu non-tissé en fibres cellulosiques régénérées, feuille imprégnée de solution médicamenteuse, et masque facial
WO2022113156A1 (fr) * 2020-11-24 2022-06-02 日本たばこ産業株式会社 Segment de filtre d'inhalateur d'arôme et procédé pour la fabrication de celui-ci et inhalateur d'arôme

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