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WO2022079237A1 - Article à fumer et procédé de fabrication d'un article à fumer - Google Patents

Article à fumer et procédé de fabrication d'un article à fumer Download PDF

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Publication number
WO2022079237A1
WO2022079237A1 PCT/EP2021/078608 EP2021078608W WO2022079237A1 WO 2022079237 A1 WO2022079237 A1 WO 2022079237A1 EP 2021078608 W EP2021078608 W EP 2021078608W WO 2022079237 A1 WO2022079237 A1 WO 2022079237A1
Authority
WO
WIPO (PCT)
Prior art keywords
tobacco
segment
smoking article
tobacco product
cooling segment
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.)
Ceased
Application number
PCT/EP2021/078608
Other languages
English (en)
Inventor
Miguel SORIANO
Theodorus VERLAAN
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.)
JT International SA
Original Assignee
JT International SA
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 JT International SA filed Critical JT International SA
Priority to EP21794138.4A priority Critical patent/EP4228443A1/fr
Priority to KR1020237012644A priority patent/KR20230087491A/ko
Priority to CN202180070755.7A priority patent/CN116348001A/zh
Priority to JP2023520469A priority patent/JP2023544770A/ja
Priority to US18/031,258 priority patent/US20230380481A1/en
Publication of WO2022079237A1 publication Critical patent/WO2022079237A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B13/00—Tobacco for pipes, for cigars, e.g. cigar inserts, or for cigarettes; Chewing tobacco; Snuff
    • A24B13/02—Flakes or shreds of tobacco
    • 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • A24C5/1885—Forming the rod for cigarettes with an axial air duct
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/60—Final treatment of cigarettes, e.g. marking, printing, branding, decorating
    • A24C5/601—Marking, printing or decorating cigarettes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/60—Final treatment of cigarettes, e.g. marking, printing, branding, decorating
    • A24C5/608—Treating cigarettes with a liquid or viscous solution
    • 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
    • A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
    • 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
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
    • 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
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • 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
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
    • 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
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01—Making cigarettes for simulated smoking devices

Definitions

  • the present invention relates to a smoking article, preferably a heat-not-burn product, comprising an improved taste.
  • a tobacco segment of such a heat-not-burn article comprises reconstituted tobacco (RTB) as the tobacco derived smokable material.
  • RTB reconstituted tobacco
  • the smokable material is then heated by an electrical heater, which is inserted into the smoking article from its distal end.
  • the smokable material typically consists of tobacco material and a suitable binder. When this smokable material is heated with the electrical heater to temperatures up to 250°C, the binder evaporates and thereby generates an inhalable aerosol.
  • the inhalable aerosol also carries flavoring substances and nicotine from the smokable material.
  • the inhalable aerosol in a heat-not-burn product derived from tobacco or tobacco derived smokable material still comprises taste deficits when compared to regular ready-made cigarettes.
  • the objective of the invention is to provide an improved smoking article, in particular a heat-not-burn product, which comprises an improved taste, that is easy to manufacture and also cost-effective.
  • a smoking article comprising a cylindrical shape with a longitudinal axis running through respective base areas of a distal end and a mouth end of the smoking article, wherein the smoking article comprises the following segments, which are arranged subsequently in the following order from the distal to the mouth end, and are at least in part wrapped in a circumferential wrapper: a) a tobacco segment comprising tobacco or tobacco derived smokable material, b) a cooling segment comprising a cylindrically shaped cooler material having a first flow path from the tobacco segment to a filter segment, c) the filter segment comprising a second flow path from the cooling segment to the mouth end.
  • the invention is characterized in that a surface of the cooler material is at least in part coated with a tobacco product comprising tobacco particles having an average particle size of 30 micrometer and a dispersion medium for dispersing the tobacco particles.
  • the aerosol After the aerosol has been generated in the tobacco segment, the aerosol is guided from the tobacco segment into the cooling segment.
  • the cooling segment cools the generated aerosol to a temperature which is safe for the consumer to inhale.
  • the cooling takes place by convection during guiding the aerosol along a first flow path from the tobacco segment to the filter segment.
  • the first flow path through the cooling segment is arranged parallel to the longitudinal axis.
  • the aerosol gets in contact with the tobacco product arranged on a surface of the cooler material.
  • the aerosol picks up tobacco flavor from the tobacco particles comprised in the tobacco product. In this way, the aerosol can be flavored in a very natural and effective way.
  • the invention very versatile and easy to combine with existing smoking articles, preferably a heat- not-burn product. It has been found, that with the average particle size of 30 micrometers, the taste delivery to the aerosol is optimized. With the large surface area an effective interaction of the aerosol with the tobacco particles is provided.
  • the tobacco particles are dispersed in a dispersion medium.
  • the dispersion medium preferably comprises water, monovalent alcohols, polyvalent alcohols, sugar alcohols, sugars and/or polyvalent alcohol esters.
  • the term polyvalent alcohols includes (among others) glycerol and propylene glycol.
  • the dispersion medium together with the tobacco particles forms a liquid or paste-like tobacco product before the tobacco product is arranged in the filter segment.
  • the dispersion medium content in the tobacco product may be reduced due to drying after the tobacco product is arranged in the filter segment.
  • the tobacco segment also comprises the tobacco product.
  • the tobacco segment will provide the aerosol with a base flavor derived from the tobacco product. Subsequently, the aerosol comprising the base flavor will then enter the cooling section where the aerosol will again pick up further flavor substances from the tobacco product arranged in the cooling section.
  • the taste of the smoking article can be fine-tunedAlso, the outside of the cooling segment will heat up to a certain temperature when the hot aerosol is directed through the cooling segment for cooling together with the cooling segment, also the tobacco product coated onto at least a part of the outer lateral area of the cooling segment, will heat up to a certain extent.
  • the tobacco product on the outer lateral area will then release the tobacco flavor into the environment. This can provide an additional flavor sensation to the consumer and may cover up the otherwise unpleasant burning smell of the tobacco or tobacco derived smokable material in the tobacco segment. This flavor release into the environment and cover-up of the unpleasant burning smell will also improve the overall taste perception of the smoking article for the consumer.
  • the tobacco product arranged on the inner and/or outer lateral area of the cooling segment is applied to the respective area in a pattern.
  • the cooling segment comprises ventilation holes, wherein the tobacco product is only arranged downstream of the ventilation holes.
  • the tobacco product is brought in contact with an already cooler aerosol.
  • this is beneficial for flavor transfer from the tobacco product to the aerosol.
  • the complete aerosol stream comprising the additional air from the ventilation hole is brought in contact with the tobacco product. This means that the complete aerosol may pick up flavor from the tobacco product, which is then delivered to the consumer for a full taste experience.
  • the cooling segment comprises ventilation holes, wherein the tobacco product is only arranged upstream of the ventilation holes.
  • the tobacco product With the tobacco product arranged upstream of the ventilation holes the tobacco product is placed in an area of the cooling segment in which the aerosol still comprises a higher temperature. This ensures a better flavor transfer from the tobacco product to the aerosol.
  • the tobacco product both upstream and downstream of the ventilation holes. Again, the tobacco product may be arranged downstream and/or upstream of the ventilation holes in a pattern.
  • the cooling segment further comprises a flow diverter arranged in the through-hole of the cooling segment, wherein the flow diverter diverts the first flow path directly to the tobacco product coated surface.
  • a flow diverter arranged in the through-hole of the cooling segment, wherein the flow diverter diverts the first flow path directly to the tobacco product coated surface.
  • the flow diverter will block a certain cross section of the first flow path.
  • the flow diverter blocks a center part of the cross section of the first flow path.
  • the flow diverter is a protrusion of the filter segment protruding into the through-hole of the cooling segment.
  • This embodiment denotes a very easy and secure way to arrange the flow diverter in the through-hole of the cooling segment.
  • the cooling segment is arranged directly adjacent to the filter segment in the smoking article.
  • a protrusion of the filter segment can easily be arranged to protrude into the through-hole of the cooling segment.
  • This not only reduces the number of parts of the smoking article and therefore eases its assembly, but it also secures the flow diverter in its central position in the first flow path of the through-hole of the cooling segment.
  • the flow diverter will not contact the inner lateral area of the cooling segment as it would be the case if the flow diverter is a loose element without any means to secure its position.
  • the protrusion of the filter segment being the flow diverter comprises a cylindrical or frustoconical shape.
  • the larger base area of the frustoconical shape is preferably arranged at the filter segment, whereas the tip of the frustoconical shape is preferably arranged towards the tobacco segment.
  • the flow diverter preferably consists of the same material as the filter segment. But it is also conceivable to use a different material for the flow diverter than for the filter segment.
  • the flow diverter is a loose element arranged inside the through-hole of the cooling segment comprising the shape of the sphere or prolate spheroid arranged with its longest axis parallel to the longitudinal axis.
  • the material and shape of the flow diverter can be chosen more freely compared to the flow diverter embodied as a protrusion of the filter segment.
  • the flow diverter which is a loose element and is arranged inside the through-hole of the cooling segment, comprises a cylindrical shape.
  • the maximum diameter of the flow diverter measured perpendicular to the longitudinal axis of the smoking article is smaller than the diameter of the through-hole of the cooling segment.
  • the diameter of the flow diverter is 5 to 10% smaller than the diameter of the through-hole of the cooling segment.
  • the flow diverter can gradually deflect the aerosol towards the inner lateral area of the through-hole.
  • the flow diverter may consist of a plastic material, preferably a plastic material able to withstand temperatures of 250 °C or more.
  • All previously described embodiments of the flow diverter may be combined with only an inpart coating of the inner lateral area with the tobacco product.
  • the tobacco product may be applied to the inner lateral area in a pattern.
  • the cooling segment comprises multiple parallel first flow paths each being circumferentially enclosed by a respective part of the cooling segment, wherein the respective parts of the surface are at least in part coated with the tobacco product.
  • Such an arrangement may for example be achieved by a rolled-up strip of material like rolled up paper or rolled up strip of corrugated cardboard or a bundle of parallel, straw like tubes being smaller in diameter than the cooling segment.
  • This embodiment of the cooling segment will provide more rigidity to the smoking article. It also provides more laminar flow along the first flow paths.
  • the tobacco product may be arranged on any surface arranged at any of the multiple parallel first flow paths.
  • a method for manufacturing a smoking article wherein a tobacco segment comprising tobacco or tobacco derived smokable material, a cooling segment comprising a cylindrically shaped cooler material having a first flow path and a filter segment comprising a second flow path are arranged in the given order subsequently on a longitudinal axis and are at least in part wrapped in a circumferential wrapper thereby forming the smoking article having a cylindrical shape with a longitudinal axis running through respective base areas of the smoking article being a distal end, at which the tobacco segment is arranged, and a mouth end, at which the filter segment is arranged, respectively, wherein the first flow path connects the tobacco segment with the filter segment and the second flow path connects the cooling segment with the mouth end.
  • the method is characterized in that before arranging the cooling segment between the tobacco and the filter segment, a surface of the cooler material is at least in part coated with a tobacco product comprising tobacco particles having an average particle size of 30 micrometers and a dispersion medium for dispersing the tobacco particles.
  • the tobacco segment By coating the surface of the cooler material with the tobacco product before arranging the cooling segment between the tobacco and the filter segment, a standard arrangement process for arranging all segments of the smoking article can be used. This enables a very cost- effective use of existing production methods and changes the production method only there where it is necessary. This method also increases production flexibility because the cooling segment can easily be exchanged with another cooling segment either comprising no tobacco product at all or a differently distributed tobacco product.
  • the tobacco product is also arranged in the tobacco segment before assembling the cooling segment, the tobacco segment and the filter segment together. This again increases the production efficiency and flexibility.
  • the tobacco product is applied to the surface of the cooler material by spraying or printing.
  • the tobacco product is diluted for the spraying or printing process.
  • the dilution medium is the same as the dispersion medium.
  • the tobacco product is diluted with water propylene glycol and/or glycerin.
  • the tobacco product is sprayed with a nozzle to the surface of the cooler material to the desired extent.
  • a pattern may be applied to the surface of the cooler material by masking certain areas of the surface or by moving the spraying nozzle over the surface in a certain pattern.
  • the thickness of the tobacco product layer applied of the cooler material may be changed by either revisiting already sprayed areas with the nozzle and applying a second coat or by increasing the flow of the spraying nozzle.
  • the tobacco product is preferably diluted as described below.
  • An especially preferred embodiment comprises tobacco particles between 1 to 58% of the total tobacco product composition. In this range not only a correct viscosity of the tobacco product is ensured but also a sufficient color intensity. The latter is of special importance if the tobacco product is used for embellishments of the smoking article.
  • the viscosity of the tobacco product is preferably between 50 and 350 dPas measured with a falling rod viscometer at 25 °C. This viscosity range is ensured with the previously given amount of tobacco particles in the tobacco product. This results in a total density of the diluted tobacco product between 0.8 and 1.5 g/cm 3 .
  • the printing process itself may be carried out with either conventional printing machines for printing on continuous material.
  • Such conventional printing machinery may include a print roller and an ink reservoir in which the tobacco product is comprised.
  • the print roller is then coated with the tobacco product from the reservoir and then rolled over the surface of the cooler material. It is also conceivable to use silk screen printing or ink-jet printing.
  • the printing process may be carried out in line with the production of the cooling segment or externally before the production of the cooling segment.
  • the tobacco product may also contain solvents, pigments dyes, resins, lubricants, solubilizers, surfactants, particulate matter and/or fluorescents. Preferably, all these materials are food-safe. Preferably, the tobacco product also contains water and humectant. With the solvents, resins, lubricants and solubilizers and/or surfactants, the rheological properties of the ink can be optimized. This will further improve the printing results. If the tobacco product is used for embellishment purposes, preferably on the outer lateral area of the cooling segment, dyes, resins and/ particulate matter can be used to optimize the color intensity and hiding power of the tobacco product when printed on the surface of the cooler material.
  • the color intensity of the tobacco product when printed by choosing the tobacco type and concentration used as tobacco particles in the tobacco product.
  • the tobacco product preferably dark tobacco types like burley tobacco, dark fire cured tobacco and dark air cured tobacco are used.
  • Fig. 1 a general schematic view of the smoking article 1 comprising the cooling segment 6,
  • Fig. 2 a schematic view of the cooling segment 6 according to another embodiment
  • Fig. 3 a schematic view of the cooling segment 6 according to a different embodiment
  • Fig. 4 a detailed view of the surface 11 coated with the tobacco product 12,
  • Fig. 6 further embodiments of the pattern 13,
  • Fig. 7 two different embodiments of the cooling segment 6 comprising multiple flow paths 8a to 8e,
  • Fig. 8 the cooler material 7 comprising the tobacco product 12,
  • Fig. 9 two embodiments of the cooling segment 6 comprising ventilation holes 17,
  • Fig. 10 a schematic view of the cooling segment 6 comprising a flow diverter 18 according to one embodiment
  • Fig. 11 the cooling segment 6 comprising a flow diverter 18 according to a different embodiment
  • Fig. 12 the cooling segment 6 comprising another embodiment of the flow diverter 18,
  • Fig. 13 the cooling segment 6 comprising a flow diverter 18 according to another embodiment
  • FIG. 14 a flow chart of the method for manufacturing a smoking article 1.
  • Figure 1 shows a general view of the smoking article 1.
  • the smoking article 1 comprises three different segments 3 arranged subsequently along the longitudinal axis L. All three segments 3 comprise a cylindrical shape 2, as well as the whole smoking article 1.
  • the smoking article comprises a distal end 1a, at which a tobacco segment 5 is arranged.
  • the tobacco segment 5 comprises tobacco or tobacco derived smokable material from which upon heating an inhalable aerosol can be generated.
  • the smoking article 1 also comprises a mouth end 1b at which a filter segment 9 is directly arranged. Between the tobacco segment 5 and the filter segment 9, a cooling segment 6 is arranged.
  • the aerosol generated in the tobacco segment 5 is transferred along a first flow path 8 through the cooling segment 6 to the filter segment 9, through which it is transferred along a second flow path 10 to the mouth end 1b, at which it is delivered to the consumer.
  • the cooling segment 6 comprises a cylindrically shaped cooler material 7.
  • the cooler material 7 comprises at least one surface 11 on which the tobacco product 12 is deposited.
  • the surface 11 is not necessarily completely coated with the tobacco product 12. It is also conceivable that only a part of the surface 11 is coated with the tobacco product 12. Preferably, a part of the surface 11 coated with a tobacco product 12 is directly adjacent to the first flow path 8. In this way, the tobacco product 12 is brought in direct contact with the aerosol streaming along the first flow path 8. In this way, the aerosol can pick up flavor substances from the tobacco product 12. This is a very efficient and easy way to improve the flavor of the aerosol of the smoking article 1 .
  • FIG. 2 shows a schematic view of one embodiment of the cooling segment 6.
  • the cooling segment 6 consists of a sheet of the cooler material 7, which is rolled up to form a tube.
  • the cooler material 7 is paper or cardboard.
  • the first flow path 8 is arranged in the tube.
  • the tobacco product 12 is deposited on at least a part of the surface 11 of the sheet cooler material 7.
  • the tobacco material 12 is deposited on the part of the surface 11a, which is arranged in an inside of the tube.
  • the tobacco product 12 is coated onto the surface 11 in circumferential rings 13a to 13c.
  • the circumferential rings 13a to 13c comprise a respective extent e in the longitudinal direction L.
  • the circumferential rings 13a to 13c are distanced from each other by a respective distance d.
  • the distance d is also measured along the longitudinal direction L.
  • all circumferential rings 13a to 13c comprise the same distance d to their respective neighbors.
  • the circumferential rings 13a to 13c comprise different distances d to their respective neighbors.
  • all circumferential rings 13a to 13c comprise the same extent e.
  • each circumferential ring 13a to 13c comprises an individual extent e or that certain circumferential rings 13a to 13c comprise the same extent, whereas other circumferential rings 13a to 13c comprise a different extent.
  • FIG. 3 shows the cooling segment 6 according to a different embodiment.
  • the cooling segment 6 comprises the shape of a hollow cylinder.
  • the hollow cylinder comprises a through-hole 15 with an inner lateral area 14 encircling the through-hole 15.
  • the hollow cylinder comprises also an outer lateral area 16, which denotes the outer-most surface of the hollow cylinder.
  • the inner lateral area 14 corresponds to the inner surface 11a of the cooler material 7 and the outer lateral area 16 corresponds to the outer surface 11 b of the cooler material 7.
  • the first flow path 8 is arranged in the through- hole 15 of the hollow cylinder.
  • the cooler material 7 is preferably monoacetate and/or a plastic material.
  • the tobacco product 12 is preferably deposited on at least a part of the inner lateral area 14 and/or at least a part of the outer lateral area 16. It is conceivable that the tobacco product 12 is arranged on the inner lateral area 14 and/or outer lateral area 16, in a pattern 13.
  • Figure 4 shows a detailed view of the cooler material 7 with its surface 11 on which the tobacco product 12 is deposited.
  • the tobacco product 12 is deposited on the surface 11 with a varying layer thickness.
  • the layer thickness of the tobacco product 12 is increasing along the first flow path 8.
  • the layer thickness of the tobacco product 12 is smaller than at a position B also marked in figure 4.
  • the embodiment of the increasing layer thickness of the tobacco product 12 along the first flow path 8 is preferred.
  • the layer thickness of the tobacco product is smaller at a position A, closer to the tobacco segment 5 than at a position B closer to the filter segment 9.
  • the aerosol originating from the tobacco segment 5 comprises a comparably high temperature which is then subsequently cooled down along the first flow path 8 when the aerosol travels through the cooling segment 6.
  • the aerosol comprises a higher temperature than at position B.
  • the flavor transfer from the tobacco product 12 to the aerosol will be more efficient than at the lower temperature of position B.
  • the less efficient flavor transfer with decreasing temperature of the aerosol will be compensated by providing more tobacco product 12 per area unit due to the increased layer thickness of the tobacco product 12. In this way, a constant flavor transfer from the tobacco product 12 to the aerosol is possible although the transfer efficiency of the flavor to the aerosol decreases with decreasing temperature along the first flow path 8.
  • Figure 5 shows further embodiments of patterns in which the tobacco product 12 can be deposited on the surface 11.
  • the black lines represent the tobacco product 12, wherein the white underground represents the surface 11.
  • the patterns may include hexagonal shapes, concentric squares, rectangles, or circles, zig-zagging or meandering lines and/or parallel straight or curved lines.
  • Figure 5 shows different patterns 13 each shown with different densities. In particular, the density of the patterns 13 increases from left to right in figure 5. This results in more tobacco product 12 per area unit of the surface 11 for higher pattern densities. Accordingly, this results in a lower amount of tobacco product 12 per area unit of the surface 11 for lower pattern densities.
  • Figure 6 shows three different embodiments of further possible patterns 13.
  • the topmost pattern 13 comprises a checkerboard pattern.
  • the lowest pattern 13 shown in figure 6 also comprises a checkerboard pattern.
  • the pattern 13 shown in the middle of figure 6 comprises a chaotic distribution of squares or pixels.
  • the black color represents the tobacco product 12 wherein white color represents the uncoated surface 11.
  • All three patterns 13 shown in figure 6 comprise a decreasing density of the tobacco product 12 per unit area of the surface 11 from left to right.
  • the patterns 13 in figure 6 show a gradual change of the tobacco product 12 density per unit area of the surface 11 .
  • Figure 7a and b show two different embodiments of the cooling segment 6 comprising multiple flow paths 8a-e.
  • Figure 7a shows an embodiment in which the cooling segment 6 comprises a cooler material 7, which forms the cooling segment 6.
  • the cooler material 7 is arranged as the cooling segment 6 in a rolled-up fashion.
  • the cooler material 7 is preferably rolled up with multiple windings, similar to a coil.
  • the cooler material 7 can either be a straight material, which is rolled up in a cylindrical shape or a corrugated material, which is again rolled up in a cylindrical shape 2.
  • the rolled up cooler material 7 preferably is wrapped in a second wrapper 4a. With the second wrapper 4a the rolled up cooler material 7 is kept in the cylindrical shape 2.
  • the surface 11 of the cooler material 7 is at least in part coated with the tobacco product 12.
  • the cooler material 7 is rolled up into the cylindrical shape 2 in a lose manner. In this way, multiple flow paths 8a-c are formed between the individual directly adjacent layers of the rolled up cooler material 7.
  • FIG 7b shows a different embodiment of the cooling segment 6 comprising multiple flow paths 8a-e.
  • the cooler material 7 consists of multiple tubes arranged parallel to each other.
  • the tubes, i.e. the cooler material 7, are shaped like straws arranged parallel to the longitudinal axis L.
  • Through each of the tubes one of the multiple flow paths 8a-e is arranged.
  • flow paths 8a-e are arranged between neighboring tubes. In this way multiple flow paths 8a-e are arranged either in the tubes or between them.
  • Each tube of the cooler material 7 comprises an inner and outer surface 11a, 11b on which at least in part the tobacco product 12 is preferably arranged.
  • Figure 8 shows a sheet-like cooler material 7 with the tobacco product 12 deposited on its surface 11 .
  • the sheet cooler material 7 is rolled up to form a cylindrical shape 2 in a rolled- up movement R marked with an arrow in figure 8.
  • a cooling segment 6 similar to the embodiment shown in figures 1 , 2 and 7a can be achieved.
  • the cooler material 7 shown in figure 8 comprises tobacco product 12 on both surfaces, the inner surface 11 and the outer surface 11b. But it is also conceivable that only on the inner or on the outer surface 11a, 11 b tobacco product 12 is deposited. In the embodiment shown in figure 8, the tobacco product is only deposited on a part of the inner surface 11a and the outer surface 11b.
  • the tobacco product 12 is deposited either on the complete inner surface 11a, the complete outer surface 11 b or on both surfaces 11a, 11 b completely.
  • the cooler material 7 would not be plain as shown in figure 8 but would comprise a corrugated shape.
  • FIGS 9a and b show an embodiment of the cooling segment 6 comprising ventilation holes 17.
  • the ventilation holes 17 are through-holes through the cooler material 7. This means that they connect the inner surface 11a with the outer surface 11 b of the cooler material 7.
  • a fluid flow is able to penetrate through the ventilation holes 17 from a surrounding of the cooling segment 6 into the inside of the cooling segment 6 where the first flow path 8 is arranged.
  • the consumer draws on the mouth end 1b of the smoking article 1 , not only is the aerosol transported from the tobacco segment 5 to the mouth end 1b of the smoking article 1 but there is also an influx of air from outside of the smoking article 1 through the ventilation holes 17 to the first flow path 8.
  • the air streaming through the ventilation holes 17 into the cooling segment 6 joins there with the aerosol along the first flow path 8 and is then subsequently delivered along the first and second flow paths 8, 10 to the mouth end 1b of the smoking article 1.
  • the tobacco product 12 is arranged downstream of the ventilation holes 17. This means that air streaming into the cooling segment 6 through the ventilation holes 17 afterwards passes the tobacco product 12 when streaming along the first flow path 8 together with the aerosol.
  • Figure 9b shows an embodiment in which the tobacco product 12 is arranged upstream of the ventilation holes 17. This means that the aerosol first passes the tobacco product 12 and picks up the tobacco flavor and then passes the ventilation holes 17 where the aerosol is joined with the air streaming from an outside of the smoking article 1 into the cooling segment 6. In this embodiment, the air streaming into the cooling segment 6 through the ventilation holes 17 does not pass the tobacco product 12.
  • Figure 10 shows a sectional view of the segments 3 of the smoking article 1.
  • a flow diverter 18 is comprised.
  • the flow diverter 18 is carried out as a protrusion 19 of the filter segment 9 which protrudes from the filter segment 9 into the through-hole 15 of the cooling segment 6.
  • the flow diverter 18 With the flow diverter 18 arranged in the through-hole 15 of the cooling segment 6, the first flow path 8 is forced to circle around the flow diverter 18.
  • the flow diverter 18 preferably comprises a cylindrical shape. This cylindrical shape is shown due to the sectional nature of figure 10 as a rectangular shape.
  • the first flow path 8, which has to flow around the flow diverter 18, is deflected towards the surface 11 of the cooler material 7.
  • first flow path 8 This arranges the first flow path 8 closer to the surface 11, which is at least in part coated with the tobacco product 12. This means that the first flow path 8 is directed towards the tobacco product 12 and is therefore able to interact much more effectively with the tobacco product 12. As a result, the aerosol streaming along the first flow path 8 picks up flavor substances from the tobacco product 12 much more effectively.
  • the first flow path 8 spreads around the flow diverter 18. In the sectional view of figure 10, this is depicted exemplarily by the two parallel flow paths 8a and 8b.
  • the aerosol transfers into the filter segment 9
  • the previously split up first flow path 8, 8a, 8b is preferably united back to a single second flow path 10.
  • Figure 11 shows another embodiment of the flow diverter 18. This embodiment is similar to the embodiment shown in figure 10.
  • the shape of the flow diverter 18 is frustoconical. With the frustoconical shape of the flow diverter 18, a very efficient flow deflection of the first flow path 8 is achieved.
  • the frustoconical shape of the flow diverter 18 comprises a tip 18a which broadens towards base 18b of the flow diverter 18 along the first flow path 8. With the sharp tip 18a of the flow diverter 18 of this embodiment, the first flow path 8 is easily deflected towards the surface 11 of the cooling material 7 without any turbulences.
  • Figure 12 shows another embodiment of the flow diverter 18.
  • the flow diverter is a lose element 20 comprised in the through-hole 15 of the cooling section 6.
  • the lose element 20 comprises a spherical shape.
  • the diameter d1 of the through-hole 15 is larger than the diameter d2 of the flow diverter 18.
  • the first flow path 8 can pass between the flow diverter 18 and the inner lateral area 14 or inner surface 11a of the cooling segment 6.
  • the diameter d2 of the flow diverter 18 is 5% smaller than the diameter d1 of the through-hole 15.
  • the diameter d2 of the flow diverter 18 is 10% smaller than the diameter d1 of the through- hole.
  • Figure 13 shows another embodiment of the flow diverter 18 carried out as a lose element 20.
  • the flow diverter comprises the shape of a prolate spheroid.
  • the prolate spheroid comprises a longest axis A1.
  • the prolate spheroid is arranged with its longest axis A1 parallel to the longitudinal axis L.
  • the diameter d2 of the prolate spheroid measured perpendicular to its longest axis A1 is smaller than the diameter d1 of the through-hole 15 of the cooling segment 6.
  • the diameter d2 of the prolate spheroid is 5%, even more preferred 10% smaller than the diameter d1 of the through-hole 15 of the cooling segment 6.
  • the first flow path 8 fully encircles the flow diverter 18. By encircling the flow diverter 18 the first flow path 8 is brought in close proximity to the surface 11 of the cooling segment 6.
  • the surface 11 is at least in part coated with the tobacco product 12. In this way, the aerosol travels along the first flow path 8 closely to the surface 11 coated with the tobacco product 12. This makes any flavor transfer from the tobacco product 12 to the aerosol streaming along the first flow path 8 very effective.
  • Figure 14 shows a flow chart of the method for manufacturing the smoking article 1.
  • the method may start with the optional step of diluting 101 the tobacco product 12.
  • the dilution 101 may be necessary to achieve the required viscosity of the tobacco product 12 for the subsequent processes 12.
  • the tobacco product 12 is coated 102 onto the cooling segment
  • the tobacco product 12 is coated 102 onto a surface 11 of the cooler material
  • the tobacco product 12 is applied to the surface 11 with a spraying nozzle. If the tobacco product 12 is arranged 102 on the surface 11 in a pattern 13, the pattern 13 is either achieved by placing a mask between the spraying nozzle and the surface 11 or by moving the spraying nozzle with respect to the surface 11 , following the desired pattern 13. If the tobacco product
  • the tobacco product 12 is coated 102 on the surface 11 by printing 104, the tobacco product 12 is applied to the surface 11 of the cooler material 7 preferably with a print roller.
  • the print roller may comprise recessed surface parts.
  • the recessed surface parts form a negative of the pattern
  • the cooling segment 6 may be formed 105 from the cooler material 7. This step of forming 105 the cooling segment 6 is also optional and only takes place if for example an embodiment like shown in figure 7a and b or figure 8 is used.
  • the cooler material 7 might be rolled up to form the cylindrical shape 2 of the cooling segment 6, as shown in figure 8, during this forming step 105.
  • all segments 3, i.e. the tobacco segment 5, the cooling segment 6 and the filter segment 9 are arranged 106 in the correct order along a common longitudinal axis L.
  • the segments 3 After the segments 3 have been arranged 106, the segments 3 are wrapped 107 in a circumferential wrapper 4. It is not necessarily the case that the wrapper wraps all segments 3 completely. It is indeed conceivable that the wrapper 4 wraps some segments 3 only in part. At this stage, the smoking article 1 is completely manufactured.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

L'invention concerne un article à fumer (1) présentant une forme cylindrique avec un axe longitudinal (L) s'étendant à travers des zones de base respectives (2a, 2b) d'une extrémité distale (1a) et d'une extrémité buccale (1b) de l'article à fumer (1), l'article à fumer (1) comprenant les segments suivants (3), qui sont disposés dans l'ordre suivant de l'extrémité distale à l'extrémité buccale (1a, 1b), et qui sont au moins en partie enveloppés dans une enveloppe circonférentielle (4) : a. un segment de tabac (5) comprenant du tabac ou un produit à fumer dérivé du tabac, b. un segment de refroidissement (6) comprenant un matériau de refroidissement de forme cylindrique (7) comprenant un premier trajet d'écoulement (8) depuis le segment de tabac (6) jusqu'à un segment de filtre (9), c. le segment de filtre (9) comprenant un second trajet d'écoulement (10) depuis le segment de refroidissement (6) jusqu'à l'extrémité buccale (1b). L'invention est caractérisée en ce qu'une surface (11) du matériau de refroidissement (7) est au moins en partie revêtue d'un produit de tabac (12) comprenant des particules de tabac présentant une taille de particule moyenne de 30 µm et un milieu de dispersion pour disperser les particules de tabac. L'invention concerne également un procédé de fabrication d'un tel article à fumer.
PCT/EP2021/078608 2020-10-15 2021-10-15 Article à fumer et procédé de fabrication d'un article à fumer Ceased WO2022079237A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21794138.4A EP4228443A1 (fr) 2020-10-15 2021-10-15 Article à fumer et procédé de fabrication d'un article à fumer
KR1020237012644A KR20230087491A (ko) 2020-10-15 2021-10-15 흡연용품 및 흡연용품의 제조 방법
CN202180070755.7A CN116348001A (zh) 2020-10-15 2021-10-15 吸烟制品和用于制造吸烟制品的方法
JP2023520469A JP2023544770A (ja) 2020-10-15 2021-10-15 喫煙物品及び喫煙物品を製造するための方法
US18/031,258 US20230380481A1 (en) 2020-10-15 2021-10-15 Smoking Article and Method for Manufacturing a Smoking Article

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20202055.8 2020-10-15
EP20202055 2020-10-15

Publications (1)

Publication Number Publication Date
WO2022079237A1 true WO2022079237A1 (fr) 2022-04-21

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PCT/EP2021/078608 Ceased WO2022079237A1 (fr) 2020-10-15 2021-10-15 Article à fumer et procédé de fabrication d'un article à fumer

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US (1) US20230380481A1 (fr)
EP (1) EP4228443A1 (fr)
JP (1) JP2023544770A (fr)
KR (1) KR20230087491A (fr)
CN (1) CN116348001A (fr)
WO (1) WO2022079237A1 (fr)

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JP2022149891A (ja) * 2021-03-25 2022-10-07 Ｆｕｔｕｒｅ Ｔｅｃｈｎｏｌｏｇｙ株式会社 加熱式タバコ用カートリッジ
WO2024115650A1 (fr) * 2022-12-01 2024-06-06 Jt International Sa Article de génération d'aérosol à fines particules de tabac et élément de refroidissement et procédé de fabrication d'article de génération d'aérosol
WO2024152532A1 (fr) * 2023-01-20 2024-07-25 思摩尔国际控股有限公司 Substrat de génération d'aérosol et produit de génération d'aérosol

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WO2024152532A1 (fr) * 2023-01-20 2024-07-25 思摩尔国际控股有限公司 Substrat de génération d'aérosol et produit de génération d'aérosol

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KR20230087491A (ko) 2023-06-16
JP2023544770A (ja) 2023-10-25
CN116348001A (zh) 2023-06-27
EP4228443A1 (fr) 2023-08-23
US20230380481A1 (en) 2023-11-30

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