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WO2024189327A2 - Composant destiné à être utilisé dans un système de fourniture d'aérosol, article et système de fourniture d'aérosol - Google Patents

Composant destiné à être utilisé dans un système de fourniture d'aérosol, article et système de fourniture d'aérosol Download PDF

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Publication number
WO2024189327A2
WO2024189327A2 PCT/GB2024/050633 GB2024050633W WO2024189327A2 WO 2024189327 A2 WO2024189327 A2 WO 2024189327A2 GB 2024050633 W GB2024050633 W GB 2024050633W WO 2024189327 A2 WO2024189327 A2 WO 2024189327A2
Authority
WO
WIPO (PCT)
Prior art keywords
section
sheet material
aerosol
gsm
length
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/GB2024/050633
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English (en)
Other versions
WO2024189327A3 (fr
Inventor
Andrei GRISHCHENKO
William Kuester
Kenan PALAT
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.)
British American Tobacco Exports Ltd
Original Assignee
British American Tobacco Exports 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 British American Tobacco Exports Ltd filed Critical British American Tobacco Exports Ltd
Publication of WO2024189327A2 publication Critical patent/WO2024189327A2/fr
Publication of WO2024189327A3 publication Critical patent/WO2024189327A3/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • 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

Definitions

  • a component for use in an aerosol provision system, an article and an aerosol provision system Technical Field
  • the present invention relates to a component for use in an aerosol provision system, an article and an aerosol provision system.
  • Background Certain tobacco industry products produce an aerosol during use, which is inhaled by a user. For example, tobacco heating devices heat an aerosol generating substrate such as tobacco to form an aerosol by heating, but not burning, the substrate. In other aerosol delivery systems, aerosol generating substrate is combusted to form an aerosol.
  • tobacco industry products commonly include mouthpieces through which the aerosol passes to reach the user’s mouth.
  • a component for use in an aerosol provision system comprising a section having a length and a width and comprising one or more portions of gathered sheet material defining a plurality of passages extending through the length of the section, wherein the pressure drop through the length of the section is less than about 30 mmH 2 O.
  • a component for use in an aerosol provision system comprising a section having a length and a width and formed from one or more portions of gathered sheet material, wherein the one or more portions of the gathered sheet material have a combined extended width of between 5 and 30 times an inner diameter of the section.
  • a component for use in an aerosol provision system comprising a section having a length and a width and comprising one or more portions of gathered sheet material, and a coating on the surface of at least one of said one or more portions of gathered sheet material, wherein the coating comprises a polymer, a resin, an adhesive or a polysaccharide, and wherein the section has a hardness of at least 90%.
  • the one or more portions of gathered sheet material can have a combined extended width of between 5 and 30 times an inner diameter of the section.
  • the one or more portions of gathered sheet material can define a plurality of passages extending through the length of the section and the pressure drop through the length of the section can be less than about 30 mmH2O.
  • the passages can each have a cross sectional area of less than 3mm 2 , optionally less than 2mm 2 or less than 1mm 2 .
  • One or more of the plurality of passages can each have a cross sectional area of greater than 0.5mm 2 , optionally greater than 1mm 2 or greater than 1.5mm 2 .
  • the pressure drop through the length of the section can be at least 1.1 mmH 2 O per mm of length of the section, or at least 1.5 mmH2O per mm of length of the section, or at least 2 mmH 2 O per mm of length of the section.
  • the pressure drop through the length of the section can be less than 0.25 mmH 2 O per mm of length of the section, or less than 0.20 mmH 2 O per mm of length of the section, or less than 0.15 mmH 2 O per mm of length of the section.
  • the pressure drop through the length of the section can be between 0.05 mmH 2 O per mm of length of the section and 0.50 mmH2O per mm of length of the section, or between 0.05 mmH 2 O per mm of length of the section and 0.25 mmH 2 O per mm of length of the section.
  • at least one of the one or more portions of gathered sheet material comprises a coating on the surface of said portion of gathered sheet material, wherein the coating comprises a polymer, a resin, an adhesive or a polysaccharide, and wherein the section has a hardness of at least 87%.
  • the one or more portions of gathered sheet material can each comprise at least one of a fibrous sheet material, a cellulosic sheet material, a combustible sheet material, and a non-woven sheet material, optionally paper.
  • the one or more portions of gathered sheet material can be crimped and the crimp amplitude can be between 0.05 and 0.5 mm or between 0.05 and 0.3 mm.
  • the section can be circumscribed by a wrapping material and the wrapping material can have a basis weight between 60 and 120 gsm, or between 80 and 110 gsm, or between 95 and 105 gsm.
  • the wrapping material can be a permeable wrapping material having a basis weight from 50 to 90 gsm and a density of less than 0.5 gcm- 3 .
  • the section can have a hardness of greater than 90%.
  • the permeable wrapping material can have a permeability of greater than 100 Coresta Units or greater than 500 Coresta Units.
  • the one or more portions of gathered sheet material can have a basis weight between 34 and 60 gsm or between 50 gsm and 100 gsm or between 55 and 95 gsm.
  • the one or more portions of gathered sheet material can have a combined extended width of between 80 mm and 120 mm or between 90 mm and 110 mm.
  • the component can be cylindrical in shape.
  • the section can comprise a first section and the one or more portions of gathered sheet material can comprise one or more portions of a first gathered sheet material, wherein the component can further comprise a second section formed from one or more portions of a second gathered sheet material, optionally wherein the second section can be arranged to be upstream of the first section, in use.
  • the one or more portions of the second gathered sheet material can have a basis weight between 20 and 60 gsm.
  • the one or more portions of the second gathered sheet material can have a combined extended width of between 120 mm and 200 mm or between 150 mm and 180 mm.
  • the one or more portions of the second gathered sheet material can define a plurality of passages through the length of the second section, and the second section can have an outer perimeter defining a cross sectional area of the second section, and the average density of the second gathered sheet material per mm 2 of the cross-section can be approximately constant across the cross-sectional area of the second section.
  • the second section can be circumscribed by a wrapping material.
  • the wrapping material can have a basis weight between 60 and 120 gsm, or between 80 and 110 gsm, or between 95 and 105 gsm.
  • the wrapping material can be a permeable wrapping material having a basis weight from 50 to 90 gsm and a density of less than 0.5 gcm- 3 .
  • the second section can have a hardness of greater than 90%.
  • the permeable wrapping material can have a permeability of greater than 100 Coresta Units or greater than 500 Coresta Units.
  • the combined extended width of the one or more portions of first sheet material can be between 8% and 50% or between 8% and 20% less than the combined extended width of the one or more portions of the second sheet material.
  • the total pressure drop through the length of the second section can be greater than the total pressure drop through the length of the first section. Alternatively or additionally, the pressure drop per mm through the length of the second section can be greater than the pressure drop per mm through the length of the first section.
  • the second section can comprise an aerosol modifying additive in the form of one or more pressure-rupturable capsules embedded in the second section.
  • a component for use in an aerosol provision system comprising a first section formed from a first gathered sheet material; a second section formed from a second gathered sheet material and arranged to be upstream of the first section, in use; and a wrapping material circumscribing at least a portion of the first section; wherein the wrapping material has a basis weight between 60 and 120 gsm, or is a permeable wrapping material having a basis weight from 50 to 90 gsm and a density of less than 0.5 g/cm 3 ; and/or wherein the hardness of the first section is greater than 90%.
  • the permeable wrapping material can have a permeability of greater than 100 Coresta Units or greater than 500 Coresta Units.
  • the pressure drop through the length of the first section can be at least 1.1 mmH 2 O per mm of length of the first section, or at least 1.5 mmH 2 O per mm of length of the component, or at least 2 mmH2O per mm of length of the component.
  • the pressure drop through the length of the first section can be less than 0.25 mmH 2 O per mm of length of the first section, or less than 0.20 mmH 2 O per mm of length of the first section, or less than 0.15 mmH2O per mm of length of the first section.
  • the pressure drop through the length of the first section can be between 0.05 mmH 2 O per mm of length of the first section and 0.50 mmH 2 O per mm of length of the first section, or between 0.05 mmH 2 O per mm of length of the first section and 0.25 mmH 2 O per mm of length of the first section.
  • the extended width of the first gathered sheet material can be between 8% and 50% less than the width of the second gathered sheet material.
  • the extended width of the first gathered sheet material can be between 8% and 20% less than the width of the second gathered sheet material.
  • a component for use in an aerosol provision system comprising a first section formed from a first gathered sheet material, and a second section formed from a second gathered sheet material, the first section arranged to be downstream of the second section, in use, wherein the width of the first sheet material is between 8% and 50% or between 8% and 20% less than the width of the second sheet material.
  • the pressure drop through the length of the first section can be at least 1.1 mmH 2 O per mm of length of the first section, or at least 1.5 mmH 2 O per mm length of the first section, or at least 2 mmH 2 O per mm length of the first section.
  • the pressure drop through the length of the first section can be less than 0.25 mmH 2 O per mm of length of the first section, or less than 0.20 mmH 2 O per mm of length of the first section, or less than 0.15 mmH 2 O per mm of length of the first section.
  • the pressure drop through the length of the first section can be between 0.05 mmH 2 O per mm of length of the first section and 0.50 mmH 2 O per mm of length of the first section, or between 0.05 mmH 2 O per mm of length of the first section and 0.25 mmH 2 O per mm of length of the first section.
  • the component can further comprise a wrapping material circumscribing at least a portion of the first section.
  • the wrapping material can have a basis weight between 60 and 120 gsm, or can be a permeable wrapping material having a basis weight from 50 to 90 gsm and a density of less than 0.5 g/cm3.
  • the hardness of the first section can be greater than 90%.
  • the permeable wrapping material can have a permeability of greater than 100 Coresta Units or greater than 500 Coresta Units.
  • the first gathered sheet material can comprise a fibrous sheet material, a cellulosic sheet material, a combustible sheet material, or a non-woven sheet material.
  • the first gathered sheet material can be crimped and the crimp amplitude can be between 0.05 and 0.5 mm or between 0.05 and 0.3 mm.
  • the first section can be circumscribed by a wrapping material having a basis weight between 60 and 120 gsm, or between 80 and 110 gsm, or between 95 and 105 gsm.
  • the first gathered sheet material can have a basis weight between 34 and 80 gsm or between 34 and 60 gsm.
  • the second section can comprise an aerosol modifying additive and/or an adsorbent.
  • the aerosol modifying additive and/or adsorbent can be provided in the form of a capsule embedded in the second section, a thread extending longitudinally through the section, particulate material dispersed in the gathered material of the second section, or a coating applied to the second sheet material.
  • the aerosol modifying additive can be provided in the form of one or more pressure-rupturable capsules embedded in the second section.
  • the second gathered sheet material can be crimped, and the crimp amplitude of the second gathered sheet material can be greater than the crimp amplitude of the first gathered sheet material.
  • the crimp amplitude of the second sheet material can be between 0.4 and 0.9 mm.
  • the second gathered sheet material can have a basis weight between 20 and 45 gsm.
  • the extended width of the first gathered sheet material can be between 10 mm and 100 mm less than the extended width of the second gathered sheet material.
  • the extended width of the first gathered sheet material can be between 10 mm and 20 mm less than the extended width of the second gathered sheet material.
  • an article comprising a source of aerosol generating material, and a component according to any of the first to fifth aspects above.
  • the article can be an article for use in a non-combustible aerosol provision system.
  • the component can be provided at a mouth end of the article.
  • the component can be provided at a distal end of the article opposite to the mouth end of the article.
  • the length of the component can be between 4mm and 8mm, or between 5mm and 7mm.
  • the article can be a combustible smoking article.
  • an aerosol provision system comprising the article of the sixth aspect above.
  • a non-combustible aerosol provision system comprising an article according to the sixth aspect for use in a non-combustible aerosol provision system and a non-combustible aerosol provision device arranged such that the aerosol generating material is heated when inserted into the device to provide an aerosol.
  • Figure 1A is a side-on cross sectional view of an article comprising a component having a section formed from gathered sheet material arranged at a mouth end of the article
  • Figure 1B is a cross sectional end view of the section formed from gathered sheet material of Figure 1A along the line X-X’
  • Figure 1C is a side-on view of the sheet material forming the section of Figure 1B
  • Figure 2 is a side-on cross sectional view of an article comprising a component having a second section comprising gathered sheet material and an aerosol-modifying agent release component.
  • an “aerosol provision system” includes both combustible aerosol provision systems and non-combustible aerosol provision systems.
  • 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 delivery 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.
  • Articles, for instance those in the shape of rods are often named according to the product length: “regular” (typically in the range 68 – 75 mm, e.g.
  • an article in a king-size, super-slim format will, for example, have a length of about 83 mm and a circumference of about 17 mm.
  • Each format may be produced with mouthpieces of different lengths. The mouthpiece length can be from about 14mm to 27 mm.
  • a tipping paper connects the mouthpiece to the aerosol generating material and will usually have a greater length than the mouthpiece, for example from 3 to 10 mm longer, such that the tipping paper covers the mouthpiece and overlaps the aerosol generating material, for instance in the form of a rod of substrate material, to connect the mouthpiece to the rod.
  • Articles and their aerosol generating materials and mouthpieces described herein can be made in, but are not limited to, any of the above formats.
  • the terms ‘upstream’ and ‘downstream’ used herein are relative terms defined in relation to the direction of mainstream aerosol drawn though an article or device in use.
  • tobacco material refers to any material comprising tobacco or derivatives or substitutes thereof.
  • tobacco material may include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes.
  • the tobacco material may comprise one or more of ground tobacco, tobacco fibre, cut tobacco, extruded tobacco, tobacco stem, tobacco lamina, reconstituted tobacco and/or tobacco extract.
  • Figure 1A is a side-on cross-sectional view of an article comprising a component having a section formed from gathered sheet material arranged at a mouth end of the article.
  • the article 1 includes a cylindrical rod of aerosol generating material 3, in the present case tobacco material, and a downstream portion, in the present case referred to as a mouthpiece 2, connected to the rod of aerosol generating material 3 such that it is downstream of the aerosol generating material.
  • the aerosol generating material 3 provides an aerosol when heated, for instance within a non-combustible aerosol provision device.
  • the article 1 can include its own heat source, forming an aerosol provision system without requiring a separate aerosol provision device.
  • the component, in this case mouthpiece 2 includes a first section 4 arranged at the mouth-end of the article, and second section 6 arranged upstream of the first section 4, between the first section 4 and the rod of aerosol generating material 3.
  • the first section 4 comprises a body of material formed from gathered sheet material 4A.
  • the sheet material 4A may be folded to form the first section 4.
  • the first section 4 may be formed from a continuous web of sheet material.
  • the sheet material 4A is gathered to form the first section 4 in a similar manner to a ‘crepe filter’.
  • the gathered sheet material 4A defines a plurality of longitudinally extending passages through the first section 4.
  • the first section 4 may be manufactured using a CU-20 filter making machine manufactured by Decouflé (TM). However, a skilled person will appreciate that other machines may be used to manufacture the first section 4.
  • the body of material is circumscribed by a first plug wrap 7.
  • the inner surface of the plug wrap 7 defines an inner diameter ‘d’ for the first section 4, as shown in Figure 1B.
  • the first plug wrap 7 has a basis weight of between 60 gsm and 120 gsm, for instance between 70 gsm and 80 gsm. Such basis weights have been found to result in a suitable hardness level for the mouthpiece.
  • the basis weight of the first plug wrap 7 may be at least 60 gsm, at least 70 gsm, at least 80 gsm, at least 90 gsm or at least 100 gsm.
  • the first plug wrap 7 may have a basis weight between 50 gsm and 90 gsm, and a density of less than 0.5 g/cm 3 .
  • the first plug wrap 7 may for instance be a permeable wrapping material having a basis weight from 50 to 90 gsm and a density of less than 0.5 g/cm 3 .
  • the first section 4 can have a hardness of greater than 90%.
  • the first plug wrap 7 can, for instance, have a permeability of greater than 100 Coresta Units or greater than 500 Coresta Units.
  • the first plug wrap 7 has a thickness of between 30 ⁇ m and 60 ⁇ m, or between 35 ⁇ m and 45 ⁇ m.
  • the thickness weight of the first plug wrap 7 may be higher to increase the hardness of the mouthpiece.
  • the thickness of the first plug wrap 7 may be at least 40 microns, 50 microns, 60 microns, 70 microns, 80 microns, 90 microns or 100 microns.
  • the thickness of the first plug wrap 7 is in the range of 40 microns to 125 microns, or in the range of 50 to 100 microns.
  • the width of the sheet material 4A that is gathered to form the first section 4 may have an extended width of between 5 and 30 times the inner diameter of the first section 4.
  • Extended width refers to the width of the sheet material 4A before any crimping or gathering is applied to the sheet material 4A to form a body of material as described above.
  • the extended width of a sheet material which has been formed into a body of material may be determined by stretching the sheet material 4A to a point where any reduction in width due to the crimping has been substantially reversed.
  • the sheet material 4A may be a fibrous sheet material.
  • the sheet material 4A comprises cellulose.
  • the sheet material 4A is paper.
  • the sheet material 4A may be a combustible sheet material.
  • the sheet material 4A may be a non-woven material.
  • the continuous web of sheet material 4A has an extended width of at least 35mm, at least 40 mm, at least 50 mm, at least 60 mm, at least 70 mm, at least 80 mm, at least 90 mm, at least 100 mm, at least 110 mm, or at least 120 mm. In some embodiments, the continuous web of sheet material 4A has an extended width of at most 230 mm, at most 220 mm, at most 200 mm, a most 180 mm, at most 150 mm, at most 140 mm, at most 130 mm, at most 120 mm, or at most 100 mm.
  • the sheet material 4A has an extended width in the range of 38 mm to 230 mm, for instance 60 mm to 160 mm, for instance 70 mm to 150 mm, or 80 mm to 120 mm. Extended widths of the sheet material 4A towards the lower end of the ranges set out above may be particularly suitable where the basis weight of the sheet material 4A is towards the higher end of the ranges set out below.
  • the first section 4 has an inner diameter of about 7.6 mm
  • the gathered sheet material 4A has an extended width of about 114 mm.
  • the sheet material 4A may have a basis weight in the range 20 to 120 gsm, for instance 30 to 85gsm, 30 to 65 gsm, 34 to 60 gsm, or 40 to 50 gsm. In some embodiments, the sheet material 4A has a basis weight of at least 15 gsm, at least 20 gsm, at least 25 gsm or at least 30 gsm. In some embodiments, the sheet material 4A has a basis weight of 120 gsm or less, 100 gsm or less, 90 gsm or less, 80 gsm or less or 70 gsm or less.
  • the sheet material 4A may have a thickness of between about 100 and about 160 microns.
  • the density of the sheet material 4A can be between about 0.6 and about 0.9 gms/cm 3 , for instance between about 0.65 and about 0.75 gms/cm 3 .
  • the sheet material 4A is crimped prior to being arranged into the first section 4. For instance, the sheet material 4A may be passed through a pair of crimping rollers.
  • the first section 4 comprises crimped sheet material 4A formed having a crimp pattern comprising a series of substantially parallel ridges and grooves.
  • the crimping may make it easier to gather the sheet material 4A to form the first section 4.
  • the sheet material 4A may not be crimped.
  • the body of material comprises crimped sheet material 4A having a crimp pattern comprising a series of substantially parallel ridges and grooves, and the average spacing between adjacent ridges is greater than about 0.3 mm.
  • the crimp amplitude is equal to or less than about 0.5 mm or less than about 0.4 mm.
  • the crimp amplitude of the sheet material forming the first section is less than 0.7 mm, 0.6 mm, 0.5 mm, 0.4 mm, 0.3 mm, 0.2 mm, or 0.1 mm. In some examples, the crimp amplitude of the sheet material 4A forming the first section 4 is at least 0.05 mm. For instance, the crimp amplitude of the sheet material 4 forming the first section can be between about 0.1 mm and about 0.5 mm, or between about 0.15mm and about 0.4 mm.
  • the crimp amplitude (also known as “crimping factor”) refers to the depth of the grooves the crimping forms in the sheet material forming the body.
  • crimping the sheet material produces a plurality of peaks and troughs in the sheet material when viewed from a first side of the sheet material, as shown in Figure 1C, wherein the crimp amplitude ‘A’ is the depth of the troughs, measured from their peak.
  • the crimping may form a ‘Zig-Zag’ formation or another shape.
  • adjacent grooves of the crimped sheet material 4A are spaced by a distance, or have a pitch ‘P’, in the range of 0.3 to 2 mm and, preferably, in the range of 0.4 to 1 mm.
  • adjacent grooves of the crimped sheet material 4A are spaced by a distance of at least 0.4 mm or at least 0.5, 0.6, 0.7 or 0.8 mm. In some embodiments, adjacent grooves of the crimped sheet material 4A are spaced by a distance of at most 1.5 mm, and preferably, at most, 1.4, 1.3, 1.2, 1.1 or 1.0 mm. Adjacent grooves of the crimped sheet material 4A can, for instance, be spaced by between about 0.3 mm and about 1.2 mm, or between about 0.4 mm and about 1 mm.
  • the plurality of longitudinally extending passages through the first section 4 can each have a cross sectional area of less than 3mm 2 , optionally less than 2mm 2 or less than 1mm 2 .
  • One or more of the plurality of passages can each have a cross sectional area of greater than 0.5mm 2 , optionally greater than 1mm 2 or greater than 1.5mm 2 .
  • Such passage sizes can allow the first section 4 to exhibit a relatively low pressure drop, or resistance to draw, across its length, while the visual appearance of the first section is not significantly different to that of a standard cellulose acetate filter.
  • the first section 4 can have a pressure drop through the length of the section that is less than 30 mmH2O, or less than 20 mmH 2 O, for instance less than about 18 mmH 2 O, or less than 15 mmH2O, or less than 10 mmH2O.
  • the pressure drop through the length of the first section 4 is at least 5 mmH 2 O, or at least 7 mmH 2 O, or at least 8 mm H 2 O, or at least 10 mm H 2 O.
  • the pressure drop per mm through the length of the first section 4 is at least 1.1 mmH 2 O/mm, or at least 1.5 mm H 2 O/mm, or at least 2 mmH 2 O/mm.
  • the pressure drop through the length of the first section 4 may be less than 0.25 mmH 2 O per mm of length of the first section, or less than 0.20 mmH 2 O per mm of length of the first section, or less than 0.15 mmH 2 O per mm of length of the first section.
  • the pressure drop through the length of the first section may be between 0.05 mmH 2 O per mm of length of the first section and 0.50 mmH 2 O per mm of length of the first section, or between 0.05 mmH2O per mm of length of the first section and 0.25 mmH 2 O per mm of length of the first section.
  • the pressure drop through the length of the first section, and other pressure drop and resistance to draw values defined herein, are determined according to the ISO standard method (ISO6565:2015).
  • the pressure drop refers to the ‘closed pressure drop’, in which any ventilation zones into the article or body under measurement are closed.
  • the first section 4 forms the mouth end of an article. In such examples, the difference in the pressure drop through the length of the article compared to that through the length of an article not having a first section 4 at the mouth end, but which is otherwise identical, may be greater than the pressure drop through the length of the first section 4.
  • the first section 4 may have a pressure drop through its length of 5 mmH 2 0, but when added to the mouth end of an article may increase the pressure drop through the length of that article by more than 5 mmH 2 O. It is hypothesised that this is due to the effect of first section 4 on the air flow path upstream of the first section 4.
  • the mouthpiece 2 has a hardness in the range of about 70% to 95%, or in the range of about 75% to 85% at the first section 4.
  • the hardness of the mouthpiece 2 at the first section may be at least 70%, at least 71%, at least 72%, at least 73%, at least 74%, at least 75%, at least 76%, at least 77%, at least 78%, at least 79%, at least 80%, at least 81%, at least 82% or at least 83%.
  • the hardness of the mouthpiece at the first section may be about 90%.
  • the hardness of the mouthpiece 2 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.
  • the hardness measurement is performed at the longitudinal centre point of the body or multi-section rod.
  • 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 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 h0 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 h1 of the body under the 150 g load is measured.
  • the hardness of the mouthpiece is determined as the average hardness of at least 20 mouthpieces measured according to this protocol.
  • the hardness of the first section 4 circumscribed by the first plug wrap 7 may also be determined using the above protocol, by carefully cutting the article to remove the first section 4 surrounded by the first plug wrap 7.
  • the hardness of the component may be at least 80%, at least 81%, at least 82%, at least at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91% or at least 92%.
  • the hardness of the component may preferably be between about 80% and about 95%.
  • the first section 4 has a length of at least 4 mm, for instance at least 5 mm, at least 6 mm, at least 7 mm or at least 8 mm. In some examples, the first section has a length of less than 10 mm.
  • the second section 6 is arranged immediately downstream of the rod of aerosol generating material 3, in the present example. In other examples, there may be additional components between the second section 6 and the rod of aerosol generating material 3.
  • the second section 6 is also formed from a gathered sheet material in a similar manner as described in relation to the first section 4, the gathered sheet material forming the second section 6 being referred to as the second gathered sheet material.
  • the total pressure drop through the length of the second section 6 can be greater than the total pressure drop through the length of the first section 4.
  • the pressure drop per mm through the length of the second section 6 can be greater than the pressure drop per mm through the length of the first section 4.
  • the second gathered sheet material may have the same composition as the first gathered sheet material 4A, i.e. the second gathered sheet material may be a fibrous sheet material, and/or formed from a cellulosic material.
  • the second gathered sheet material is paper.
  • the second gathered sheet material may be a combustible sheet material, and/or a non-woven material.
  • the second section is formed from a second gathered sheet material (not pictured) having a greater extended width than the extended width of the sheet material forming the first section 4.
  • the second section 6 may have an outer perimeter defined by the inner surface of the second plug wrap 8 defining a cross sectional area of the second section 6, and the average density per mm 3 of the gathered sheet material within the outer perimeter is approximately constant across the cross-sectional area of the second section 6. This can be achieved by use of crimping to enable a relatively constant gathering of the second gathered sheet material to form the second section 6.
  • the second gathered sheet material defines a plurality of longitudinally extending passages through the second section 6.
  • the cross sectional area of at least one of the passages through the second section 6 is less than 1 mm 2 .
  • the average cross sectional area of the plurality of passages through the second section 6 is less than 1 mm 2 .
  • each of the passages through the second section 6 has a cross-sectional area of less than 3mm 2 , less than 2mm 2 or less than 1mm 2 .
  • the second gathered sheet material may be crimped, in a similar manner as described in relation to the first sheet material 4A. In the present example, the second gathered sheet material is crimped prior to being arranged into the second section 6. In other examples, the second gathered sheet material may not be crimped. In some examples, the level of crimping applied to the second gathered sheet material may enable a greater width of sheet material to be gathered into the second section 6, than the amount of sheet material gathered into the first section 4.
  • Increasing the amount of sheet material in the second section 6 may increase the surface area of sheet material that is in contact with aerosol passing through the second section 6. This can result in the pressure drop through the length of the second section 6 being greater than that through the first section 4.
  • This arrangement of relative pressure drops can result in the second section 6, which is arranged upstream of the first section 4, having a higher filtration efficiency than the first section 4.
  • the relatively lower contribution of the first section 4 to filtration of the aerosol can reduce visible staining of the first section 4, in use, compared to the second section 6, and the appearance of the mouthpiece 2 may be more acceptable to the user.
  • the extended width of the first gathered sheet material may be between 10 mm and 100 mm or between 10 mm and 20 mm less than the extended width of the second gathered sheet material.
  • the extended width of the first gathered sheet material may be between 8% and 50% less than the width of the second gathered sheet material.
  • the extended width of the first gathered sheet material may be between 8% and 20% less than the width of the second gathered sheet material.
  • the first section 4 can be provided at a distal, upstream end of the article 1, 1’ opposite to the mouth end 2b or downstream end 2b of the article 1, 1’, as an alternative or in addition to the first section provided at the mouth end 2b.
  • the first section 4 can in these cases assist with holding the aerosol generating material 3 in place.
  • the second section 6 may be omitted, or included as a mouth end component of the article 1, 1’.
  • the first section 4 can provide a novel distal end appearance to the article 1, 1’.
  • the length of the component may be between 4mm and 8mm, or between 5mm and 7mm, when provided at the distal end.
  • the first section 4 may include an aerosol-former material as defined herein, such as glycerol.
  • the first section 4 may include an active substance as defined herein, such as nicotine.
  • at least one of the first section 4 or the second section 6 may be treated to change its visual appearance as compared to the other of the first section 4 or the second section 6.
  • the sheet material forming the section may be bleached, coloured, or otherwise altered in its appearance. This can assist with distinguishing between the sections using sensors, such as light sensors, during high- speed manufacture.
  • the pressure drop through the length of the body of material forming the second section 6 is at least 10 mmH 2 O, at least 15 mmH 2 O, or at least 20 mmH2O, at least 30 mmH2O, or at least 40 mmH2O. In some examples, the pressure drop through the length of the body of material forming the second section 6 is less than 150 mmH2O, less than 100 mmH2O, less than 80 mmH 2 O, less than 60 mmH 2 O, less than 50 mmH 2 O, less than 45 mmH 2 O, less than 42 mmH 2 O or less than 40 mmH 2 O.
  • the pressure drop through the length of the body of material forming the second section 6 is about 20 mmH2O, 22 mmH2O or 25 mmH2O. In some examples, the pressure drop through the length of the body of material forming the second section 6 is about 30 mmH 2 O, 32 mmH 2 O or 35 mmH 2 O. In some examples, the pressure drop through the length of the body of material forming the second section 6 is in the range of 10 mmH 2 O to 40 mmH 2 O, or in the range of 15 mmH2O to 30 mmH2O.
  • the pressure drop through the length of the body of material forming the second section 6 is at least 1.0 mmH 2 O per mm axial length of the body of material forming the second section 6. In some embodiments, the pressure drop through the length of the body of material forming the second section 6 is at least 1.2 mmH 2 O, 1.5 mmH 2 O, or 1.8 mmH 2 O per mm axial length of the body of material. In some embodiments, the pressure drop through the length of the body of material forming the second section 6 is less than 10 mmH 2 O, 8 mmH 2 O, 5 mmH 2 O, 3.0 mmH 2 O, 2.8 mmH 2 O, or 2.6 mmH 2 O per mm of axial length of the body of material.
  • the pressure drop through the length of the body of material forming the second section 6 is less than 2.5 mmH 2 O, 2.4 mmH 2 O or 2.3 mmH 2 O per mm of axial length of the body of material forming the second section 6.
  • the body of material forming the second section 6 comprises crimped sheet material having a crimp pattern comprising a series of substantially parallel ridges and grooves.
  • the crimp amplitude is between about 0.4 mm and 0.7 mm.
  • the crimp amplitude of the sheet material may be about 0.4 mm, 0.5 mm, 0.6 mm or 0.7 mm.
  • adjacent grooves of the crimped sheet material are spaced by a distance of at least 0.4 mm or at least 0.5, 0.6, 0.7 or 0.8 mm. In some embodiments, adjacent grooves of the crimped sheet material 10 are spaced by a distance of at most 1.5 mm, and preferably, at most, 1.4, 1.3, 1.2, 1.1 or 1.0 mm.
  • the sheet material can have a crimp with a crimp amplitude of less 1 mm and spacing between peaks (or troughs) of at least 300 ⁇ m, at least 400 ⁇ m or at least 500 ⁇ m.
  • the continuous web of sheet material has an extended width of at least 40 mm, 50 mm, 60 mm, at least 70 mm, at least 80 mm, at least 90 mm, at least 100 mm, at least 110 mm, or at least 120 mm. In some embodiments, the continuous web of sheet material has an extended width of at most 300 mm, at most 280 mm, at most 260 mm, at most 240 mm, at most 230 mm, at most 220 mm, at most 210 mm, at most 200 mm or at most 190 mm. In some examples, the extended width of the first gathered sheet material 4A may be between 8% and 50% or between 8% and 20% less than the extended width of the second gathered sheet material.
  • the extended width of the second sheet material may be about 170 mm, and the extended width of the first sheet material 4A may be about 100 mm.
  • the extended width of the second sheet material is suitably between about 120 mm and about 180 mm or between about 124 mm and about 143 mm.
  • the extended width of the second gathered sheet material can be about 125 mm.
  • the second section 6 is circumscribed by a second plug wrap 8.
  • the second plug wrap 8 has a basis weight of between 20 gsm and 120 gsm, for instance between 40 gsm and 100 gsm, or between 50 gsm and 80 gsm.
  • the second plug wrap 8 may for instance be a permeable wrapping material having a basis weight from 50 to 90 gsm and a density of less than 0.5 g/cm 3 .
  • the second plug wrap 8 can, for instance, have a permeability of greater than 100 Coresta Units or greater than 500 Coresta Units.
  • the second gathered sheet material may have a basis weight in the range 20 to 45 gsm, for instance 25 to 35 gsm.
  • the sheet material has a basis weight of at least 20 gsm, at least 30 gsm, or at least 40 gsm.
  • the sheet material may have a basis weight of up to 120 gsm.
  • the sheet material has a basis weight of 50 gsm or less, 40 gsm or less, or 30 gsm or less. Preferably, the sheet material has a basis weight of 45 gsm or less.
  • the second section 6 has a length of at least 10 mm.
  • the second section 6 may have a length of at least 12 mm, at least 15 mm, at least 18 mm or at least 20 mm.
  • the pressure drop or difference (also referred to as resistance to draw) through the length of the mouthpiece 2 is less than about 180 mmH 2 O. Such pressure drops have been found to allow sufficient aerosol, including desirable compounds such as flavour compounds, to pass through the mouthpiece 2 to the consumer.
  • the pressure drop through the length of the mouthpiece is less than about 150 mmH 2 O, about 130 mmH2O, about 100 mmH2O, or about 50 mmH2O. In some embodiments, the pressure drop through the length of the mouthpiece 2 is at least 20 mmH 2 O, or 30 mmH 2 O, or 40 mmH 2 O. Preferably, the pressure drop through the length of the mouthpiece 2 is between about 40 mmH 2 O and 150 mmH 2 O.
  • ventilation is provided into the second section 6. In the present example, the ventilation is provided by ventilation holes 12, which are formed through the tipping paper 5, the second plug wrap 8, and the third plug wrap 9 to provide ventilation into the second section 6.
  • the first section 4 and the second section 6 are circumscribed by a third plug wrap 9.
  • the third plug wrap 9 can be adhered around the component(s) of the article by adhesive applied to a lap seam extending longitudinally along the second plug wrap.
  • the third plug wrap 9 can alternatively or in addition be adhered directly to the underlying component(s) using an adhesive.
  • the adhesive can be selected to be a water soluble adhesive to aid degradation of the component(s).
  • the third plug wrap 9 can itself be formed from paper or other material having improved degradability, for instance improved dispersibility when exposed to water.
  • the third plug wrap 9 has a basis weight of less than 120 gsm.
  • the third plug wrap 9 has a basis weight between about 70 gsm and about 80 gsm. However, it should be recognised that the basis weight of the third plug wrap 9 may be higher to increase the hardness of the mouthpiece. For instance, the basis weight of the third plug wrap 9 may be between about 60 gsm and 120 gsm. In some embodiments, the basis weight of the third plug wrap 9 is in the range of 50 gsm to 110 gsm, or in the range of 60 gsm to 100 gsm. In some embodiments, the third plug wrap 9 has a thickness of between 30 ⁇ m and 60 ⁇ m, or between 35 ⁇ m and 45 ⁇ m.
  • the thickness of the third plug wrap 9 may be higher to increase the hardness of the mouthpiece.
  • the thickness of the third plug wrap 9 may be at least 40 microns, at least 50 microns, at least 60 microns, at least 70 microns, at least 80 microns, at least 90 microns or at least 100 microns.
  • the thickness of the third plug wrap 9 is in the range of 40 microns to 120 microns, or in the range of 50 microns to 100 microns.
  • the third plug wrap 9 is a non-porous plug wrap having a permeability of less than 100 Coresta Units, for instance less than 50 Coresta Units.
  • the third plug wrap 9 can be a porous plug wrap, for instance having a permeability of greater than 200 Coresta Units.
  • the first section 4, the second section 6, and the mouthpiece 2 may each also be referred to as a component.
  • Such components as described herein may be particularly suitable for use in or as the mouthpiece of an article.
  • the mouthpiece may comprise additional sections to those described herein.
  • Biodegradability can be measured according to the procedure set out under ISO 14855- 2:2018. Components as described herein can achieve a biodegradation of greater than 50% in 30 days when exposed to either fresh or marine water.
  • the sheet material 4A forming the first section 4 may comprise a coating, applied to the sheet material 4A prior to forming the body of material or during the process of forming the body of material.
  • the coating on the sheet material 4A may comprise a polymer, a resin, an adhesive or a polysaccharide.
  • the coating may increase the hardness of the first section 4, for instance by stiffening the sheet material 4A, or by bonding adjacent folds in the gathered sheet material 4A to each other so as to increase the rigidity of the body of gathered sheet material.
  • substantially the entire surface area of the sheet material 4A may be covered by the coating.
  • the coating may be applied in a varying pattern across the surface area of the sheet material 4A.
  • the coating may be applied as a dot matrix pattern, or arranged in lines across or along the surface of the sheet material 4A. In some examples, the coating may be arranged to leave at least a portion of the sheet material 4A uncoated. When the sheet material 4A is formed into the body of material, portions of the sheet material may come into contact with one another, forming contact areas. In some examples, the coating on the surface of the sheeting material 4A may be such that contact areas between portions of the sheet material are strengthened, or permanently adhered together, for example due to bonds formed between coated portions of the sheet material at the contact areas.
  • the coating may also provide extra rigidity to the entire surface of the sheet material 4A, or to the areas of the sheet material to which the coating is applied, such that the body formed from the coated sheet material may have increased hardness.
  • the aerosol generating material or substrate is formed from tobacco material as described herein, which includes a tobacco component.
  • the aerosol generating material 3 is wrapped in a wrapper 10.
  • the wrapper 10 can, for instance, be a paper or paper-backed foil wrapper.
  • the wrapper 10 is a permeable cigarette paper.
  • the wrapper 10 may be substantially impermeable to air, particularly where the article 1 is intended for use with a non-combustible aerosol provision system, as described further below.
  • the aerosol generating material 3 is provided as a cylindrical rod of aerosol generating material. Irrespective of the form of the aerosol generating material, it preferably has a length of about 10 mm to 100 mm. In some embodiments, the length of the aerosol generating material is preferably in the range about 25 mm to 50 mm, more preferably in the range about 30 mm to 45 mm, and still more preferably about 30 mm to 40 mm.
  • the tobacco material may be provided in the form of cut rag tobacco.
  • the cut rag tobacco can have a cut width of at least 15 cuts per inch (about 5.9 cuts per cm, equivalent to a cut width of about 1.7mm).
  • the cut rag tobacco has a cut width of at least 18 cuts per inch (about 7.1 cuts per cm, equivalent to a cut width of about 1.4mm), more preferably at least 20 cuts per inch (about 7.9 cuts per cm, equivalent to a cut width of about 1.27mm).
  • the cut rag tobacco has a cut width of 22 cuts per inch (about 8.7 cuts per cm, equivalent to a cut width of about 1.15mm).
  • the cut rag tobacco has a cut width at or below 40 cuts per inch (about 15.7 cuts per cm, equivalent to a cut width of about 0.64mm).
  • Cut widths between 0.5 mm and 2.0 mm, for instance between 0.6 mm and 1.5 mm, or between 0.6 mm and 1.7mm have been found to result in tobacco material which is preferable in terms of surface area to volume ratio, particularly when heated, and the overall density and pressure drop of the aerosol generating material 3.
  • the cut rag tobacco can be formed from a mixture of forms of tobacco material, for instance a mixture of one or more of paper reconstituted tobacco, leaf tobacco, extruded tobacco and bandcast tobacco.
  • the tobacco material comprises paper reconstituted tobacco or a mixture of paper reconstituted tobacco and leaf tobacco.
  • the tobacco material may contain a filler component.
  • the filler component is generally a non-tobacco component, that is, a component that does not include ingredients originating from tobacco.
  • the filler component may be a non-tobacco fibre such as wood fibre or pulp or wheat fibre.
  • the filler component may also be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, magnesium carbonate.
  • the filler component may also be a non-tobacco cast material or a non-tobacco extruded material.
  • the filler component may be present in an amount of 0 to 20% by weight of the tobacco material, or in an amount of from 1 to 10% by weight of the composition. In some embodiments, the filler component is absent.
  • Suitable aerosol-former materials include, but are not limited to: a polyol such as sorbitol, glycerol, and glycols like propylene glycol or triethylene glycol; a non-polyol such as monohydric alcohols, high boiling point hydrocarbons, acids such as lactic acid, glycerol derivatives, esters such as diacetin, triacetin, triethylene glycol diacetate, triethyl citrate or myristates including ethyl myristate and isopropyl myristate and aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate.
  • a polyol such as sorbitol, glycerol, and glycols like propylene glycol or triethylene glycol
  • a non-polyol such as monohydric alcohols, high boiling point hydrocarbons, acids such as lactic acid
  • the aerosol-former material 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 tobacco material, 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, for example any tobacco component of the tobacco material, and/or in the filler component, if present. Alternatively or additionally the aerosol-former material may be added to the tobacco material separately.
  • the total amount of the aerosol-former material in the tobacco material can be as defined herein.
  • the tobacco material can contain between 10% and 90% by weight tobacco leaf, wherein the aerosol-former material is provided in an amount of up to about 10% by weight of the leaf tobacco.
  • the tobacco material described herein contains nicotine.
  • the nicotine content is from 0.5 to 1.75% by weight of the tobacco material, and may be, for example, from 0.8 to 1.5% by weight of the tobacco material.
  • the tobacco material contains between 10% and 90% by weight tobacco leaf having a nicotine content of greater than 1.5% by weight of the tobacco leaf. It has been advantageously found that using a tobacco leaf with nicotine content higher than 1.5% in combination with a lower nicotine base material, such as paper reconstituted tobacco, provides a tobacco material with an appropriate nicotine level but better sensory performance than the use of paper reconstituted tobacco alone.
  • the tobacco leaf for instance cut rag tobacco, can, for instance, have a nicotine content of between 1.5% and 5% by weight of the tobacco leaf.
  • the tobacco material described herein can contain an aerosol modifying agent, such as any of the flavours described herein.
  • the tobacco material contains menthol, forming a mentholated article.
  • the tobacco material can comprise from 3mg to 20mg of menthol, preferably between 5mg and 18mg and more preferably between 8mg and 16mg of menthol.
  • the tobacco material can contain between 2% and 8% by weight of menthol, preferably between 3% and 7% by weight of menthol and more preferably between 4% and 5.5% by weight of menthol.
  • the tobacco material includes 4.7% by weight of menthol.
  • Such high levels of menthol loading can be achieved using a high percentage of reconstituted tobacco material, for instance greater than 50% of the tobacco material by weight.
  • a high volume of aerosol generating material for instance tobacco material
  • aerosol generating material such as tobacco material
  • any water that may be present in the tobacco material, or in any component thereof, is entirely disregarded for the purposes of the determination of the weight %.
  • the water content of the tobacco material described herein may vary and may be, for example, from 5 to 15% by weight.
  • the water content of the tobacco material described herein may vary according to, for example, the temperature, pressure and humidity conditions at which the compositions are maintained.
  • the water content can be determined by Karl-Fisher analysis, as known to those skilled in the art.
  • the aerosol-former material is a component that is in liquid phase, such as glycerol or propylene glycol, any component other than water is included in the weight of the tobacco material.
  • the aerosol-former material when the aerosol-former material is provided in the tobacco component of the tobacco material, or in the filler component (if present) of the tobacco material, instead of or in addition to being added separately to the tobacco material, the aerosol-former material is not included in the weight of the tobacco component or filler component, but is included in the weight of the "aerosol-former material" in the weight % as defined herein. All other ingredients present in the tobacco component are included in the weight of the tobacco component, even if of non-tobacco origin (for example non- tobacco fibres in the case of paper reconstituted tobacco).
  • the tobacco material comprises the tobacco component as defined herein and the aerosol-former material as defined herein.
  • the tobacco material consists essentially of the tobacco component as defined herein and the aerosol-former material as defined herein. In an embodiment, the tobacco material consists of the tobacco component as defined herein and the aerosol-former material as defined herein.
  • Paper reconstituted tobacco may be present in the tobacco component of the tobacco material described herein in an amount of from 10% to 100% by weight of the tobacco component. In some embodiments, the paper reconstituted tobacco is present in an amount of from 10% to 80% by weight, or 20% to 70% by weight, of the tobacco component. In a further embodiment, the tobacco component consists essentially of, or consists of, paper reconstituted tobacco. In preferred embodiments, leaf tobacco is present in the tobacco component of the tobacco material in an amount of from at least 10% by weight of the tobacco component.
  • leaf tobacco can be present in an amount of at least 10% by weight of the tobacco component, while the remainder of the tobacco component comprises paper reconstituted tobacco, bandcast reconstituted tobacco, or a combination of bandcast reconstituted tobacco and another form of tobacco such as tobacco granules.
  • Paper reconstituted tobacco refers to tobacco material formed by a process in which tobacco feedstock is extracted with a solvent to afford an extract of solubles and a residue comprising fibrous material, and then the extract (usually after concentration, and optionally after further processing) is recombined with fibrous material from the residue (usually after refining of the fibrous material, and optionally with the addition of a portion of non-tobacco fibres) by deposition of the extract onto the fibrous material.
  • the process of recombination resembles the process for making paper.
  • the paper reconstituted tobacco may be any type of paper reconstituted tobacco that is known in the art.
  • the paper reconstituted tobacco is made from a feedstock comprising one or more of tobacco strips, tobacco stems, and whole leaf tobacco.
  • the paper reconstituted tobacco is made from a feedstock consisting of tobacco strips and/or whole leaf tobacco, and tobacco stems.
  • scraps, fines and winnowings can alternatively or additionally be employed in the feedstock.
  • the paper reconstituted tobacco for use in the tobacco material described herein may be prepared by methods which are known to those skilled in the art for preparing paper reconstituted tobacco.
  • the article 1 has an outer circumference of about 24.8 mm (i.e. the article is in the regular format).
  • the outer circumference of the mouthpiece 2 is substantially the same as the outer circumference of the rod of aerosol generating material 3, such that there is a smooth transition between these components.
  • the tipping paper 5 comprises citrate, such as sodium citrate or potassium citrate.
  • the tipping paper 5 may have a citrate content of 2% by weight or less, or 1% by weight or less. Reducing the citrate content of the tipping paper 5 is thought to assist with reducing the charring effect which may occur during use in a non-combustible aerosol provision system.
  • the tipping paper 5 extends 5 mm over the rod of aerosol generating material 3 but it can alternatively extend between 3 mm and 10 mm over the rod 3, or more preferably between 4 mm and 6 mm, to provide a secure attachment between the mouthpiece 2 and rod 3.
  • the tipping paper 5 can have a basis weight of 40 gsm to 80 gsm, for instance between 50 gsm and 70 gsm, for example 58 gsm. These ranges of basis weights have been found to result in tipping papers having acceptable tensile strength while being flexible enough to wrap around the article 1 and adhere to itself along a longitudinal lap seam on the paper.
  • the article 1, 1’ described herein may be modified for use in or as a non-combustible aerosol provision system. Modifications may be made to one or several of the wrappers, the composition of the aerosol generating material, and/or the configuration of the components of the mouthpiece, to produce an article which is particularly suitable for use in or as a non-combustible aerosol provision system.
  • a tubular portion, as described below, may be provided to act as a cooling segment in an article intended for use in a non-combustible aerosol provision system.
  • a tubular portion may be provided downstream of the aerosol generating material, for instance between the rod of aerosol generating material 3 and the second section 6.
  • the tubular portion may be referred to as a “cooling element” herein.
  • the tubular portion is located around and defines an air gap within the mouthpiece which acts as a cooling segment.
  • the air gap provides a chamber through which heated volatilised components generated by the aerosol generating material 3 flow.
  • the tubular portion is hollow to provide a chamber for aerosol accumulation yet rigid enough to withstand axial compressive forces and bending moments that might arise during manufacture and whilst the article is in use.
  • the tubular portion provides a physical displacement between the aerosol generating material 3 and the second section 6.
  • the tubular portion is configured to provide a temperature differential of at least 60 degrees Celsius, at least 80 degrees Celsius, or at least 100 degrees Celsius between a heated volatilised component entering a first, upstream end of the tubular portion and a heated volatilised component exiting a second, downstream end of the tubular portion.
  • the tubular portion is formed from a plurality of layers of paper which are parallel wound, with butted seams, to form a hollow tube.
  • first and second paper layers may be provided in a two-ply tube, although in other examples 3, 4 or more paper layers can be used forming 3, 4 or more ply tubes.
  • the mouthpiece pressure drop can be between about 5 mmH 2 O and 20 mmH 2 O or between 5 mmH 2 O and 15 mmH 2 O. These values enable the mouthpiece 2 to slow down the aerosol as it passes through the mouthpiece 2 such that the temperature of the aerosol has time to reduce before reaching the downstream end 2b of the mouthpiece 2.
  • the ventilation level of the article 1, 1’ may be increased for articles intended for use with a non-combustible aerosol provision system. For instance, the ventilation level may be about 75% of the aerosol drawn through the article. In alternative embodiments, the article can have a ventilation level of between 50% and 80% of aerosol drawn through the article, for instance between 65% and 75%.
  • the wrapper 10 comprises aluminium foil.
  • Aluminium foil has been found to be particularly effective at enhancing the formation of aerosol within the aerosol generating material 3 in non-combustible aerosol provision systems.
  • the aluminium foil has a metal layer having a thickness of about 6 ⁇ m.
  • the aluminium foil has a paper backing.
  • the aluminium foil can be other thicknesses, for instance between 4 ⁇ m and 16 ⁇ m in thickness.
  • the aluminium foil also need not have a paper backing, but could have a backing formed from other materials, for instance to help provide an appropriate tensile strength to the foil, or it could have no backing material.
  • Metallic layers or foils other than aluminium can also be used.
  • the wrapper 10 may be formed from a material with a high inherent level of permeability, an inherently porous material, or may be formed from a material with any level of inherent permeability where the final level of permeability is achieved by providing the wrapper 10 with a permeable zone or area. Providing a permeable wrapper 10 provides a route for air to enter the article.
  • the wrapper 10 can be provided with a permeability such that the amount of air entering through the rod of aerosol generating material is relatively more than the amount of air entering the article through the ventilation holes 12 in the mouthpiece. An article having this arrangement may produce a more flavoursome aerosol which may be more satisfactory to the user.
  • the capsule 11 is located in the second section 6.
  • the capsule 11 is embedded in the second gathered sheet material forming the second section 6.
  • the (or each) aerosol-modifying agent release component may be combined with the second gathered sheet material, for instance, being adhered thereto, before the second gathered sheet material is formed into the second section 6’.
  • a user may selectively rupture the capsule 11 by applying an external force to the mouthpiece 2’ in order to release the aerosol modifying agent from the capsule.
  • the (or each) capsule comprises an outer shell and an inner core.
  • the shell of each capsule may be solid at room temperature.
  • the shell may comprise, consist of, or essentially consist of, alginate.
  • the shell is formed from a different material.
  • the shell may alternatively comprise, consist of, or essentially consist of, gelatin, carageenans or pectins.
  • the shell may comprise, consist of, or essentially consist of, one or more of alginate, gelatin, carrageenans or pectins.
  • each additive capsule may be impermeable, or substantially impermeable, to the aerosol modifying agent agent of the core. Therefore, the shell initially prevents the agent of the core from escaping from the capsule. When the user desires to modify the aerosol, the shells of the capsules are ruptured such that the agent is released.
  • the (or each) capsule further comprises a carrier material.
  • the carrier material may comprise, for example, gelatin.
  • the (or each) capsule has a diameter in the range of 1 mm to 5 mm, or in the range of 2 mm to 4 mm. In some embodiments, the diameter of the (or each) capsule is about 3 mm.
  • the (or each) capsule may be generally spherical.
  • each capsule may be in the range about 5 mg to about 50 mg, or in the range of about 10 mg to about 30 mg. In some embodiments, each capsule has a weight of about 14 mg.
  • one or more aerosol-modifying agent release components are included in the second section 6’, wherein the second section 6’ is formed from a sheet material having a basis weight of less than 40 gsm, for instance less than 35 or 30 gsm. This helps to reduce the density of the second section 6’ to compensate for the presence of the aerosol-modifying agent release component within the second section 6’ which may otherwise result in an increase in the firmness of the second section 6’.
  • one or more aerosol-modifying agent release components are included in the second section 6’, wherein the second section 6’ is formed from a sheet material having width of less than 100 mm for instance less than 90 mm or 80 mm. This helps to reduce the density of the second section 6’ to compensate for the presence of the aerosol-modifying agent release component within the second section 6’ which may otherwise result in an increase in the firmness of the second section 6’.
  • the (or each) capsule is centred on the longitudinal axis of the mouthpiece 2.
  • 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.
  • the non-combustible aerosol provision system is an aerosol- generating material heating system, also known as a heat-not-burn system.
  • An example of such a 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 aerosol- generating 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 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, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon
  • 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, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens
  • 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. In some embodiments, 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. In some embodiments, the substance to be delivered comprises a flavour. As used herein, the terms “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.
  • flavour materials 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, cherry, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot,
  • 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 limited 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.
  • 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 aerosol- generating film.
  • the aerosol-generating film may comprise a binder, such as a gelling agent, and an aerosol former.
  • 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. For example, 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 may be 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 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 aerosol- generating film.
  • the slurry 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 material 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%, 60wt% or 70wt% of amorphous solid, to about 90wt%, 95wt% or 100wt% 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-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
  • glycerol propylene glycol
  • diethylene glycol triethylene glycol
  • tetraethylene glycol 1,3-butylene glycol
  • erythritol meso-Erythritol
  • ethyl vanillate ethyl laurate
  • the one or more other functional materials may comprise one or more of 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 varying 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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Abstract

Composant destiné à être utilisé dans un système de fourniture d'aérosol, article et système de fourniture d'aérosol. Un composant destiné à être utilisé dans un système de fourniture d'aérosol comprend une section présentant une longueur et une largeur et comprenant une ou plusieurs parties d'un matériau en feuilles froncées définissant une pluralité de passages s'étendant sur la longueur de la section. La chute de pression sur la longueur de la section peut être inférieure à environ 30 mmH2O. La ou les parties du matériau en feuilles froncées peuvent présenter une largeur étendue combinée étant entre 5 et 30 fois supérieure à un diamètre intérieur de la section. Un revêtement peut être prévu sur la surface d'au moins l'une de la ou des parties du matériau en feuilles froncées, le revêtement pouvant être un polymère, une résine, un adhésif ou un polysaccharide. La section peut présenter une dureté d'au moins 90 %.
PCT/GB2024/050633 2023-03-10 2024-03-08 Composant destiné à être utilisé dans un système de fourniture d'aérosol, article et système de fourniture d'aérosol Pending WO2024189327A2 (fr)

Applications Claiming Priority (2)

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GBGB2303527.2A GB202303527D0 (en) 2023-03-10 2023-03-10 A component for use in an aerosol provision system, an article and an aerosol provision system
GB2303527.2 2023-03-10

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WO2024189327A3 WO2024189327A3 (fr) 2024-11-07

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Cited By (1)

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WO2025032321A1 (fr) * 2023-08-04 2025-02-13 British American Tobacco Exports Limited Composant destiné à être utilisé dans un système de fourniture d'aérosol, article et système de fourniture d'aérosol

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AU2017229309B2 (en) * 2016-03-09 2021-12-23 Philip Morris Products S.A. Aerosol-generating article
US11395507B2 (en) * 2018-09-07 2022-07-26 Altria Client Services Llc Filter for an e-vaping device, e-vaping device with the filter, and method of forming the filter
KR102742303B1 (ko) * 2018-11-14 2024-12-16 니뽄 다바코 산교 가부시키가이샤 냉각 세그먼트 및 그 제조 방법, 비연소 가열 흡연 물품, 그리고 비연소 가열 흡연 시스템
EP4225077B1 (fr) * 2020-10-09 2025-12-17 Philip Morris Products S.A. Article de génération d'aérosol ayant une faible résistance à la traction et une diffusion d'arôme améliorée
GB202103576D0 (en) * 2021-03-15 2021-04-28 Nicoventures Trading Ltd A component for an article for use in an aerosol provision system
WO2022230866A1 (fr) * 2021-04-27 2022-11-03 日本たばこ産業株式会社 Feuille de tabac pour inhalateurs d'arôme de type à chauffage sans combustion et son procédé de production, inhalateur d'arôme de type à chauffage sans combustion et système d'inhalation d'arôme de type à chauffage sans combustion
GB202109113D0 (en) * 2021-06-24 2021-08-11 British American Tobacco Exports Ltd A component for an article for use in an aerosol provision system

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Publication number Priority date Publication date Assignee Title
WO2025032321A1 (fr) * 2023-08-04 2025-02-13 British American Tobacco Exports Limited Composant destiné à être utilisé dans un système de fourniture d'aérosol, article et système de fourniture d'aérosol

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