US20250204580A1 - Flavor generation article - Google Patents

Flavor generation article Download PDF

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Publication number
US20250204580A1
US20250204580A1 US19/077,085 US202519077085A US2025204580A1 US 20250204580 A1 US20250204580 A1 US 20250204580A1 US 202519077085 A US202519077085 A US 202519077085A US 2025204580 A1 US2025204580 A1 US 2025204580A1
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United States
Prior art keywords
sheet
tobacco
generating article
susceptor
flavor
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Pending
Application number
US19/077,085
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English (en)
Inventor
Takeshi SHINKAWA
Manabu Yamada
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.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
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Filing date
Publication date
Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Assigned to JAPAN TOBACCO INC. reassignment JAPAN TOBACCO INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHINKAWA, TAKESHI, YAMADA, MANABU
Publication of US20250204580A1 publication Critical patent/US20250204580A1/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF 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
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for

Definitions

  • the present invention relates to a flavor generating article.
  • Flavor inhalers for inhaling flavors, etc. without burning of materials are conventionally known.
  • Smoking material heating devices which heat a smoking material comprising tobacco that contains volatile components to form an aerosol, are known as an example of such flavor inhalers.
  • a consumable comprising a tobacco slab, a spacer, and a filter is known as such a smoking material (see PTL 1).
  • the objective of the present invention lies in providing a cartridge having a novel structure, and a flavor inhaler.
  • a flavor generating article comprises: a flat susceptor-containing sheet comprising a susceptor material; and a waveform first sheet and second sheet which are disposed on both sides of the susceptor-containing sheet, and at least one of the susceptor-containing sheet, the first sheet and the second sheet contains tobacco.
  • gaps for the passage of a flavor or aerosol generated from the tobacco can be formed between the susceptor-containing sheet and the first sheet and second sheet.
  • the susceptor-containing sheet comprises the susceptor material, and the tobacco can therefore be heated without a heating source coming into contact with the flavor generating article.
  • the flavor or aerosol can therefore be stably delivered because the gaps are not crushed as a result of a heater or the like contacting the flavor generating article.
  • the susceptor-containing sheet which comprises the susceptor material is arranged in such a way as to be sandwiched between the first sheet and the second sheet, so transmission of heat generated by the susceptor material to a surface of the flavor generating article can be inhibited by the gaps through which the flavor or aerosol passes.
  • the susceptor-containing sheet which comprises the susceptor material is arranged in such a way as to be sandwiched between the first sheet and the second sheet, so transmission of heat generated by the susceptor material to a surface of the flavor generating article can be inhibited by the gaps through which the flavor or aerosol passes.
  • the essential point of a second aspect which is in accordance with the first aspect, lies in the fact that the tobacco comprises an aerosol source.
  • the amount of aerosol delivered to a user can be increased.
  • the essential point of a third aspect which is in accordance with the first or second aspect, lies in the fact that the first sheet comprises a first face facing the susceptor-containing sheet, and a second face opposite the first face, a liner sheet being provided on the second face.
  • the first sheet is covered by the liner sheet, so the user can handle the flavor generating article without touching the first sheet directly.
  • the liner sheet may furthermore inhibit transmission of heat from the susceptor-containing sheet to the user's hand when the flavor generating article is removed from the flavor inhaler after use of the flavor generating article.
  • the essential point of a fourth aspect which is in accordance with the third aspect, lies in the fact that the liner sheet is paper.
  • a lightweight and inexpensive flavor generating article can be provided.
  • the essential point of a fifth aspect which is in accordance with the third or fourth aspect, lies in the fact that a gap between the first sheet and the liner sheet is partially or completely closed.
  • the passage of air through the gap between the first sheet and the liner sheet is inhibited. This makes it easier for air passing through the flavor generating article to flow through the gaps between the susceptor-containing sheet and the first sheet and second sheet, which therefore enables efficient downstream delivery of the flavor or aerosol generated from the tobacco.
  • the essential point of a sixth aspect which is in accordance with any of the first to fifth aspects, lies in the fact that at least one of the first sheet and the second sheet comprises paper or molded pulp.
  • a lightweight, inexpensive and robust flavor generating article can be provided.
  • the essential point of a seventh aspect which is in accordance with any of the first to sixth aspects, lies in the fact that the height of wave portions of at least one of the first sheet and the second sheet is 0.2 mm to 2.0 mm.
  • the height of the wave portions is less than 0.2 mm, then the gaps between the susceptor-containing sheet and at least one of the first sheet and second sheet will be excessively small, so there is a risk that efficient downstream delivery of the flavor or aerosol generated from the tobacco will no longer be possible. Furthermore, in that case, there is also a risk of a reduction in heat insulation afforded by the gaps between the susceptor-containing sheet and at least one of the first sheet and second sheet. If the height of the wave portions is greater than 2.0 mm, then the flavor generating article will be excessively large in size. According to the seventh aspect, the flavor or aerosol can therefore be efficiently delivered and the size of the flavor generating article can be limited.
  • the essential point of an eighth aspect which is in accordance with any of the first to seventh aspects, lies in the fact that the height of wave portions of the first sheet and the height of wave portions of the second sheet are different.
  • the gap between the susceptor-containing sheet and the first sheet, and the gap between the susceptor-containing sheet and the second sheet can be made different sizes. Accordingly, when a structure is formed by laminating a first tobacco sheet and a second tobacco sheet comprising different tobacco flavours, for example, a first flavor from the first tobacco sheet is made to pass through a first gap and a second flavor from the second tobacco sheet is made to pass through a second gap, whereby the desired flavor can be supplied to the user by adjusting respective delivery amounts thereof.
  • the essential point of a ninth aspect which is in accordance with any of the first to eighth aspects, lies in the fact that the width of wave portions of at least one of the first sheet and the second sheet is 0.2 mm to 2.0 mm.
  • the width of the wave portions is less than 0.2 mm, then there is a risk of an undesirable increase in suction resistance when the aerosol passes between waves before being inhaled. If this width is greater than 2.0 mm, then there is a risk of a reduction in strength of the flavor generating article. According to the ninth aspect, the strength of the flavor generating article can therefore be maintained while an undesirable increase in suction resistance is suppressed.
  • the essential point of a 10th aspect which is in accordance with any of the first to ninth aspects, lies in the fact that at least one of the first sheet and the second sheet comprises a flavoring material.
  • the flavoring material can be supplied to the user in addition to the flavor or aerosol.
  • the essential point of an 11th aspect which is in accordance with any of the first to 10th aspects, lies in the fact that the susceptor-containing sheet extends only partly in a longitudinal direction or a width direction of the flavor generating article.
  • the susceptor-containing sheet has a smaller length or width than the overall length or width of the flavor generating article. Accordingly, the flavor generating article does not need to be provided with a susceptor-containing sheet having the same size as the overall size of the flavor generating article, so the required amount of susceptor-containing sheet can be provided for the flavor generating article and the amount of susceptor material can be reduced.
  • the essential point of a 12th aspect which is in accordance with any of the first to 11th aspects, lies in the fact that the susceptor-containing sheet comprises the susceptor material in sheet-form, and a tobacco sheet laminated on the sheet-form susceptor material.
  • the tobacco sheet can be heated by means of induction heating of the sheet-form susceptor material.
  • the essential point of a 13th aspect which is in accordance with the 12th aspect, lies in the fact that the sheet-form susceptor material has a smaller area than the tobacco sheet.
  • a smaller amount of the susceptor material can be used.
  • the first tobacco sheet and the second tobacco sheet can be heated more evenly by means of induction heating of the sheet-form susceptor material.
  • the essential point of a 15th aspect which is in accordance with the 14th aspect, lies in the fact that the first tobacco sheet and the second tobacco sheet differ from each other in regard to at least one of flavor, thickness, aerosol source content and surface shape.
  • flavours can be generated from the first tobacco sheet and the second tobacco sheet when the flavours therein are different. Accordingly, the desired flavor can be supplied to the user by adjusting respective delivery amounts of the flavours. Furthermore, when the thicknesses are different, the temperature of the relatively thin tobacco sheet rises more rapidly, enabling efficient initial delivery of the flavor or aerosol. In contrast to this, the temperature of the relatively thick tobacco sheet rises more slowly, making it possible to maintain flavor or aerosol generation to the latter stage of smoking. When the aerosol source contents are different, the temperature of the tobacco sheet having a relatively small aerosol source content rises more rapidly, enabling efficient initial delivery of the flavor or aerosol.
  • the temperature of the tobacco sheet having a relatively large aerosol source content rises more slowly, making it possible to maintain flavor or aerosol generation to the latter stage of smoking.
  • the tobacco sheet with the relatively large surface area enables efficient initial delivery of the flavor or aerosol.
  • the temperature of the tobacco sheet having a relatively small surface area rises more slowly, making it possible to maintain flavor or aerosol generation to the latter stage of smoking.
  • the essential point of a 16th aspect which is in accordance with any of the first to 11th aspects, lies in the fact that the susceptor-containing sheet comprises a tobacco sheet and a granular susceptor material.
  • the tobacco sheet can be heated by means of induction heating of the granular susceptor material.
  • the essential point of the 17th aspect which is in accordance with any of the 12th to 16th aspects, lies in the fact that the thickness of the tobacco sheet is 0.25 mm to 4.0 mm.
  • the thickness of the tobacco sheet is less than 0.25 mm, then there is a risk of a reduction in the amount of flavor or aerosol generated per unit area of the sheet. If the thickness of the tobacco sheet is greater than 4.0 mm, then the flavor generating article will be excessively large in size. In that case, it takes time to heat the tobacco sheet, and there is a risk of more time being needed until the first puff, and of the amount delivered by the first puff being inadequate. According to the 17th aspect, it is therefore possible to generate sufficient flavor or aerosol and also to limit the size of the flavor generating article.
  • the essential point of an 18th aspect lies in the fact that the susceptor-containing sheet consists only of the susceptor material, or comprises the susceptor material in sheet-form and a non-tobacco sheet laminated on the sheet-form susceptor material.
  • the susceptor-containing sheet does not contain tobacco, and at least one of the first sheet and the second sheet therefore contains the tobacco.
  • the tobacco contained in at least one of the first sheet and the second sheet can be heated by induction heating of the susceptor-containing sheet, and the flavor or aerosol can be produced.
  • the essential point of a 19th aspect which is in accordance with any of the first to 18th aspects, lies in the fact that at least one of the first sheet and the second sheet contains the tobacco.
  • the tobacco contained in at least one of the first sheet and the second sheet can be heated by induction heating of the susceptor-containing sheet, and the flavor or aerosol can be produced.
  • the essential point of the 20th aspect which is in accordance with any of the first to 19th aspects, lies in the fact that at least one of the first sheet and the second sheet is a non-tobacco sheet.
  • At least one of the first sheet and the second sheet is formed by any non-tobacco material, and a lightweight, inexpensive and robust flavor generating article can therefore be provided.
  • FIG. 1 is a schematic side view of a flavor inhaler for heating a flavor generating article according to the embodiment.
  • FIG. 2 is a schematic diagram of an example of the flavor inhaler.
  • FIG. 3 is an oblique view of the flavor generating article.
  • FIG. 4 is a view in cross section seen from a longitudinal direction of the flavor generating article shown in FIG. 3 .
  • FIG. 5 is a view in cross section seen from the longitudinal direction of a flavor generating article according to another embodiment.
  • FIG. 6 A is a view in cross section showing the configuration of a susceptor-containing sheet in the flavor generating article according to the embodiment.
  • FIG. 6 B is a view in cross section showing the configuration of the susceptor-containing sheet in a flavor generating article according to another embodiment.
  • FIG. 7 A is a view in cross section showing the configuration of the susceptor-containing sheet in a flavor generating article according to another embodiment.
  • FIG. 7 B is a view in cross section showing the configuration of the susceptor-containing sheet in a flavor generating article according to yet another embodiment.
  • longitudinal direction in the present specification means the direction in which air passes through the flavor generating article.
  • longitudinal direction means the direction of extension of projections and depressions in a first sheet or second sheet which will be described later.
  • short-side direction or “width direction” in the present specification means a direction orthogonal to the longitudinal direction.
  • FIG. 1 is a schematic side view of a flavor inhaler for heating a flavor generating article according to this embodiment.
  • a flavor inhaler 100 according to this embodiment is configured to produce a flavor or aerosol by heating a flavor source or an aerosol source contained in a flavor generating article.
  • the flavor inhaler 100 comprises a first housing 110 , a second housing 120 , and a mouthpiece 130 .
  • the first housing 110 and the second housing 120 are configured to be detachable from one another.
  • the mouthpiece 130 may be detachably connected to one end of the second housing 120 , or may be integrally formed with the second housing 120 .
  • FIG. 2 is a schematic diagram of an example of the flavor inhaler 100 .
  • the flavor inhaler 100 comprises: a battery 140 , a heating unit 150 and a control circuit 170 which are disposed inside the first housing 110 ; and a cooling unit 160 which is disposed inside the second housing 120 .
  • the first housing 110 and the second housing 120 are pivotably connected to one another by means of a hinge, for example.
  • the first housing 110 and the second housing 120 may equally be connected to one another by means of snap fitting or screwing, etc., so as to be completely separable.
  • the cooling unit 160 , mouthpiece 130 , and heating unit 150 can be easily cleaned by completely separating the first housing 110 and the second housing 120 from one another in this way.
  • the battery 140 is configured to supply electrical power to the heating unit 150 and the control circuit 170 , etc.
  • the battery 140 is a lithium ion battery, for example.
  • the battery 140 may be rechargeable by means of an external power source.
  • the cooling unit 160 is configured to cool the aerosol formed by a flavor generating article 10 .
  • the cooling unit 160 may be a space in which the transiting aerosol is naturally cooled, for example.
  • the cooling unit 160 may be provided or filled with one or more materials selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate and aluminum foil.
  • the aerosol can be cooled more efficiently by providing or filling the cooling unit 160 with these materials.
  • the heating unit 150 comprises an induction coil 150 b for induction heating a susceptor contained in the flavor generating article 10 .
  • the flavor inhaler 100 shown in FIG. 2 may also comprise, between the heating unit 150 and the control circuit 170 , an electromagnetic shield (not depicted) which keeps electromagnetic waves generated by the induction coil 150 b from reaching the control circuit 170 .
  • the heating unit 150 is configured to heat the flavor generating article 10 to 200° C. to 350° C., for example.
  • the control circuit 170 is configured by a CPU and a memory, etc. and controls operation of the flavor inhaler 100 .
  • the control circuit 170 starts heating of the flavor generating article 10 in response to a user operation on an input device such as a push-button or slide switch (not depicted), and terminates heating of the flavor generating article 10 once a given time has elapsed.
  • the control circuit 170 may terminate heating of the flavor generating article 10 even if the given time has not yet elapsed from the start of heating of the flavor generating article 10 .
  • Puffing actions are detected by means of a sensor which is not depicted, for example.
  • control circuit 170 may start heating of the flavor generating article 10 in response to the start of a puffing action, and may terminate heating of the flavor generating article 10 in response to the end of the puffing action. When a given time has elapsed from the start of the puffing action, the control circuit 170 may terminate heating of the flavor generating article 10 even if the puffing action has not yet finished. In the example depicted, the control circuit 170 is disposed between the battery 140 and the heating unit 150 , and transfer of heat from the heating unit 150 to the battery 140 is suppressed.
  • the flavor generating article 10 generates a vapor or an aerosol of the aerosol source or flavor source as a result of being heated by means of the heating unit 150 .
  • the vapor and aerosol generated in the flavor generating article 10 are cooled by passing through the cooling unit 160 and are delivered into the user's mouth through the mouthpiece 130 .
  • the flavor generating article 10 of this embodiment is in the form of a sheet, a plate or a card.
  • FIG. 3 is an oblique view of the flavor generating article 10 .
  • FIG. 4 is a view in cross section seen from a longitudinal direction d 1 of the flavor generating article 10 shown in FIG. 3 .
  • the flavor generating article 10 may be formed in the shape of a flat sheet overall.
  • the flavor generating article 10 comprises: a flat susceptor-containing sheet 20 comprising a susceptor material; and a waveform first sheet 42 and second sheet 44 which are disposed on both sides of the susceptor-containing sheet 20 .
  • the susceptor-containing sheet 20 is a substantially flat sheet overall.
  • At least one of the susceptor-containing sheet 20 , the first sheet 42 and the second sheet 44 contains tobacco and produces the flavor or aerosol by means of heating.
  • the first sheet 42 and the second sheet 44 have a sinusoidal waveform cross section. This is not limiting, however, and at least one of the first sheet 42 and the second sheet 44 may have a waveform cross section of any shape, such as a rectangular waveform, triangular waveform, or sawtooth waveform.
  • Specific tobaccos that may be cited include dried tobacco leaf shreds, ground leaf tobacco, and tobacco extract (an extract employing water, an organic solvent, or a mixture thereof).
  • the ground leaf tobacco constitutes particles obtained by grinding leaf tobacco.
  • the ground leaf tobacco may have an average particle size of 30 to 120 ⁇ m, for example.
  • the grinding may be carried out using a well-known grinding machine, and may be dry grinding or wet grinding.
  • Ground leaf tobacco is therefore also referred to as leaf tobacco particles.
  • the average particle size is determined by means of laser diffraction/scattering, and the average particle size is specifically measured by using a laser diffraction particle size distribution measurement apparatus (e.g., LA-950 available from HORIBA Ltd.).
  • the type of tobacco there is no limitation as to the type of tobacco, and it is possible to use yellow, Burley, Oriental or native type, and other Nicotiana tabacum varieties and Nicotiana rustica varieties, etc.
  • the amount of tobacco contained in the first susceptor-containing sheet 20 , the first sheet 42 , or the second sheet 44 is preferably 1 to 30 wt % and more preferably 10 to 20 wt %.
  • the tobacco may be supported on a sheet formed by non-tobacco fibers such as pulp fibers or a nonwoven fabric, for example.
  • at least one of the first sheet 42 and the second sheet 44 may be formed by a tobacco sheet.
  • a sheet produced from tobacco leaf, a cast sheet of tobacco leaf, or a rolled sheet of tobacco leaf, etc. may be used for the tobacco sheet.
  • the tobacco sheet may further comprise an aerosol source.
  • the aerosol source is preferably a polyhydric alcohol, and may be, for example, glycerol, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
  • gaps S 1 , S 2 for the passage of the flavor or aerosol generated from the tobacco are respectively formed between the susceptor-containing sheet 20 and the first sheet 42 and second sheet 44 .
  • This enables efficient downstream delivery of the flavor or aerosol generated from the tobacco.
  • the susceptor-containing sheet 20 comprises the susceptor material, and the tobacco can therefore be heated without a heating source coming into contact with the flavor generating article 10 .
  • the flavor or aerosol can therefore be stably delivered because the gaps S 1 , S 2 are not crushed etc. as a result of a heater or the like contacting the flavor generating article 10 .
  • the susceptor-containing sheet 20 which comprises the susceptor material is arranged in such a way as to be sandwiched between the first sheet 42 and the second sheet 44 , so transmission of heat generated by the susceptor material to the surface of the flavor generating article 10 can be inhibited by the gaps through which the flavor or aerosol passes.
  • the tobacco may contain an aerosol source.
  • at least one of the susceptor-containing sheet 20 , the first sheet 42 , and the second sheet 44 may contain an aerosol source. The amount of aerosol delivered to the user can be increased in this case.
  • the first sheet 42 comprises a first face 42 a facing the susceptor-containing sheet 20 , and a second face 42 b opposite the first face 42 a .
  • a first liner sheet 51 is preferably provided on the second face 42 b .
  • the first sheet 42 is covered by the first liner sheet 51 , so the user can handle the flavor generating article 10 without touching the first sheet 42 directly. This inhibits crushing of the first sheet 42 , and the gap S 1 between the susceptor-containing sheet 20 and the first sheet 42 can therefore be maintained so that the flavor or aerosol can be stably delivered.
  • the first liner sheet 51 may furthermore inhibit transmission of heat from the susceptor-containing sheet 20 to the user's hand when the flavor generating article 10 is removed from the flavor inhaler 100 after use of the flavor generating article 10 .
  • the second sheet 44 comprises a first face 44 a facing the susceptor-containing sheet 20 , and a second face 44 b opposite the first face 44 a .
  • a second liner sheet 52 is preferably provided on the second face 44 b .
  • the second sheet 44 is covered by the second liner sheet 52 , so the user can handle the flavor generating article 10 without touching the second sheet 44 directly. This inhibits crushing of the second sheet 44 , and the gap S 2 between the susceptor-containing sheet 20 and the second sheet 44 can therefore be maintained so that the flavor or aerosol can be stably delivered.
  • the second liner sheet 52 may furthermore inhibit transmission of heat from the susceptor-containing sheet 20 to the user's hand when the flavor generating article 10 is removed from the flavor inhaler 100 after use of the flavor generating article 10 .
  • At least one of the first liner sheet 51 and the second liner sheet 52 is preferably paper.
  • a lightweight and inexpensive flavor generating article 10 can be provided.
  • a gap S 3 is formed between the first sheet 42 and the first liner sheet 51 .
  • the gap S 3 is preferably partially or completely closed. In this case, the passage of air through the gap S 3 between the first sheet 42 and the first liner sheet 51 is inhibited. This makes it easier for air passing through the flavor generating article 10 to flow through the gaps S 1 , S 2 between the susceptor-containing sheet 20 and the first sheet 42 and second sheet 44 , which therefore enables efficient downstream delivery of the flavor or aerosol generated from the susceptor-containing sheet 20 .
  • a gap S 4 is formed between the second sheet 44 and the second liner sheet 52 .
  • the gap S 4 is preferably partially or completely closed. In this case, the passage of air through the gap S 4 between the second sheet 44 and the second liner sheet 52 is inhibited. This makes it easier for air passing through the flavor generating article 10 to flow through the gaps S 1 , S 2 between the susceptor-containing sheet 20 and the first sheet 42 and second sheet 44 , which therefore enables efficient downstream delivery of the flavor or aerosol generated from the susceptor-containing sheet 20 .
  • at least one of the first liner sheet 51 and the second liner sheet 52 is preferably flat.
  • At least one of the first sheet 42 and the second sheet 44 may be a non-tobacco sheet formed by a non-tobacco material.
  • at least one of the first sheet 42 and the second sheet 44 preferably comprises paper or molded pulp, for example.
  • a lightweight, inexpensive and robust flavor generating article 10 can be formed by this means.
  • At least one of the first sheet 42 and the second sheet 44 may contain tobacco.
  • the tobacco contained in at least one of the first sheet 42 and the second sheet 44 can be heated by induction heating of the susceptor-containing sheet 20 , and the flavor or aerosol can be produced.
  • the first sheet 42 and the second sheet 44 have the same waveform cross-sectional shape and face each other with the susceptor-containing sheet 20 therebetween so that phases thereof are offset by 90°.
  • the first sheet 42 comprises projections 42 c and depressions 42 d
  • the second sheet 44 comprises projections 44 c and depressions 44 d
  • the first sheet 42 and the second sheet 44 may be arranged so that the depressions 42 d and projections 44 c face each other with the susceptor-containing sheet 20 therebetween.
  • FIG. 5 is a view in cross section seen from the longitudinal direction d 1 of a flavor generating article 10 according to another embodiment.
  • the first sheet 42 and the second sheet 44 have the same waveform cross-sectional shape and may face each other with the susceptor-containing sheet 20 therebetween so that phases thereof are matching.
  • the first sheet 42 and the second sheet 44 may be arranged so that the depressions 42 d of the first sheet 42 and the depressions 44 d of the second sheet 44 face each other with the susceptor-containing sheet 20 therebetween.
  • the waves in the cross sections of the first sheet 42 and the second sheet 44 have the same height and width.
  • the height or width of the waves in the cross section of the first sheet 42 may be varied from the height or width of the waves in the cross section of the second sheet 44 .
  • the height h 1 of wave portions of at least one of the first sheet 42 and the second sheet 44 is preferably 0.2 mm to 2.0 mm. If the height h 1 (see FIG. 4 ) of the wave portions is less than 0.2 mm, then the gaps S 1 , S 2 between the susceptor-containing sheet 20 and at least one of the first sheet 42 and second sheet 44 will be excessively small, so there is a risk that efficient downstream delivery of the flavor or aerosol generated from the tobacco will no longer be possible. Furthermore, in that case, there is also a risk of a reduction in heat insulation afforded by the gaps S 1 , S 2 between the susceptor-containing sheet 20 and at least one of the first sheet 42 and second sheet 44 .
  • the flavor generating article 10 will be excessively large in size.
  • the flavor or aerosol can therefore be efficiently delivered and the size of the flavor generating article 10 can be limited if the height h 1 of the wave portions is within the numerical value range above.
  • the width (i.e., the length between wave peaks) of at least one of the first sheet 42 and the second sheet 44 is preferably 0.2 mm to 2.0 mm. If this width is less than 0.2 mm, then there is a risk of an undesirable increase in suction resistance when the aerosol passes between waves before being inhaled. If this width is greater than 2.0 mm, then there is a risk of a reduction in strength of the flavor generating article 10 . The strength of the flavor generating article 10 can be maintained while an increase in undesirable suction resistance is suppressed if the width is within the numerical value range above.
  • At least one of the first sheet 42 and the second sheet 44 may contain a flavoring material.
  • the flavoring material can be supplied to the user in addition to the flavor or aerosol.
  • the type of flavoring material there is no particular limitation as to the type of flavoring material, and, from the point of view of imparting a favorable flavoring sensation, it is possible to select at least one from among: acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, Peru Balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil
  • the susceptor-containing sheet 20 may extend only partly in the longitudinal direction d 1 or a width direction d 2 of the flavor generating article 10 .
  • the susceptor-containing sheet 20 may have a smaller length or width than the overall length or width of the flavor generating article 10 . Accordingly, the flavor generating article 10 does not need to be provided with a susceptor-containing sheet 20 having the same size as the overall size of the flavor generating article 10 , so the required amount of susceptor-containing sheet 20 can be provided for the flavor generating article 10 and the amount of susceptor material can be reduced.
  • FIG. 6 A is a view in cross section showing the configuration of the susceptor-containing sheet 20 in the flavor generating article 10 according to this embodiment.
  • FIG. 6 B is a view in cross section showing the configuration of the susceptor-containing sheet 20 in a flavor generating article 10 according to another embodiment.
  • the susceptor-containing sheet 20 according to this embodiment may comprise a sheet-form susceptor material 25 , and a tobacco sheet 21 laminated on the sheet-form susceptor material 25 .
  • the tobacco sheet 21 can be heated by means of induction heating of the sheet-form susceptor material 25 .
  • the tobacco sheet 21 of the susceptor-containing sheet 20 preferably comprises a first tobacco sheet 21 a and a second tobacco sheet 21 b .
  • the sheet-form susceptor material 25 is preferably sandwiched between the first tobacco sheet 21 a and the second tobacco sheet 21 b .
  • the first tobacco sheet 21 a and the second tobacco sheet 21 b can be heated more evenly by means of induction heating of the sheet-form susceptor material 25 .
  • the second tobacco sheet 21 b may equally be laminated directly on the first tobacco sheet 21 a .
  • the tobacco sheet 21 may comprise only either the first tobacco sheet 21 a or the second tobacco sheet 21 b.
  • the first tobacco sheet 21 a and the second tobacco sheet 21 b may have the same shape (thickness, length or width) or the same components, or may have different shapes (thickness, length or width) or different components.
  • the first tobacco sheet 21 a and the second tobacco sheet 21 b may differ from each other in regard to at least one of flavor, thickness, aerosol source content and surface shape.
  • Different flavours can be generated from the first tobacco sheet 21 a and the second tobacco sheet 21 b when the flavours therein are different. Accordingly, the desired flavor can be supplied to the user by adjusting respective delivery amounts of the flavours.
  • the first tobacco sheet 21 a and the second tobacco sheet 21 b are tobacco sheets with different types of tobacco blended therein, such as Burley, yellow, Oriental or native type, or with different tobacco blending ratios.
  • the temperature of the relatively thin tobacco sheet rises more rapidly, enabling efficient initial delivery of the flavor or aerosol.
  • the temperature of the relatively thick tobacco sheet rises more slowly, making it possible to maintain flavor or aerosol generation to the latter stage of smoking.
  • the aerosol source contents are different, the temperature of the tobacco sheet having a relatively small aerosol source content rises more rapidly, enabling efficient initial delivery of the flavor or aerosol.
  • the temperature of the tobacco sheet having a relatively large aerosol source content rises more slowly, making it possible to maintain flavor or aerosol generation to the latter stage of smoking.
  • the tobacco sheet with the relatively large surface area enables efficient initial delivery of the flavor or aerosol.
  • the temperature of the tobacco sheet having a relatively small surface area rises more slowly, making it possible to maintain flavor or aerosol generation to the latter stage of smoking.
  • the first sheet 42 and the second sheet 44 have the same waveform cross-sectional shape, as described above. This is not limiting, however, and the height of the wave portions of the first sheet 42 and the height of the wave portions of the second sheet 44 may be different. In this case, the gap S 1 between the susceptor-containing sheet 20 and the first sheet 42 , and the gap S 2 between the susceptor-containing sheet 20 and the second sheet 44 can be made different sizes. Accordingly, when the susceptor-containing sheet 20 is formed by laminating the first tobacco sheet 21 a and the second tobacco sheet 21 b , as shown in FIG.
  • a first flavor from the first tobacco sheet 21 a is made to pass through the gap S 1 and a second flavor from the second tobacco sheet 21 b is made to pass through the gap S 2 , whereby the desired flavor can be supplied to the user by adjusting respective delivery amounts thereof.
  • the sheet-form susceptor material 25 may have a smaller area than the tobacco sheet 21 . In this case, a smaller amount of the susceptor material 25 can be used. It should be noted that the area here means the area of the tobacco sheet 21 or the susceptor material 25 extending over the longitudinal direction d 1 and the width direction d 2 shown in FIG. 3 .
  • the susceptor-containing sheet 20 may comprise the tobacco sheet 21 and a granular susceptor material 26 .
  • the tobacco sheet 21 can be heated by means of induction heating of the granular susceptor material 26 .
  • the granular susceptor material 26 is contained within the tobacco sheet 21 , but this is not limiting, and the granular susceptor material 26 may equally be arranged so as to be attached to the surface of the tobacco sheet 21 .
  • the particle size of the granular susceptor material 26 may be 0.1 mm to 3 mm, for example.
  • the thickness of the tobacco sheet 21 shown in FIG. 6 A and FIG. 6 B is preferably 0.25 mm to 4.0 mm. If the thickness of the tobacco sheet 21 is less than 0.25 mm, then there is a risk of a reduction in the amount of flavor or aerosol generated per unit area of the sheet. If the thickness of the tobacco sheet 21 is greater than 4.0 mm, then the flavor generating article 10 will be excessively large in size. In that case, it takes time to heat the tobacco sheet 21 , and there is a risk of more time being needed until the first puff, and of the amount delivered by the first puff being inadequate. The flavor or aerosol can therefore be sufficiently generated and the size of the flavor generating article 10 can be limited if the thickness of the tobacco sheet 21 is within the numerical value range above. It should be noted that when the tobacco sheet 21 comprises multiple tobacco sheets, as shown in FIG. 6 A , the thickness as referred to here means the total thickness of the multiple tobacco sheets.
  • a sheet produced from tobacco leaf, a cast sheet of tobacco leaf, or a rolled sheet of tobacco leaf, etc. may be used as the tobacco sheet 21 shown in FIG. 6 A and FIG. 6 B .
  • the tobacco sheet 21 may further comprise an aerosol source.
  • the aerosol source is preferably a polyhydric alcohol, and may be, for example, glycerol, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
  • the tobacco sheet 21 may also comprise the flavoring materials mentioned above which may be added to the first sheet 42 and the second sheet 44 .
  • FIG. 7 A is a view in cross section showing the configuration of the susceptor-containing sheet 20 in a flavor generating article 10 according to another embodiment.
  • FIG. 7 B is a view in cross section showing the configuration of the susceptor-containing sheet 20 in a flavor generating article 10 according to yet another embodiment.
  • the susceptor-containing sheets 20 shown in FIG. 7 A and FIG. 7 B differ from the susceptor-containing sheets 20 shown in FIG. 6 A and FIG. 6 B in that the former do not contain tobacco.
  • the susceptor-containing sheet 20 shown in FIG. 7 A consists only of the sheet-form susceptor material 25 . Furthermore, the susceptor-containing sheet 20 shown in FIG.
  • the susceptor-containing sheets 20 shown in FIG. 7 A and FIG. 7 B do not contain tobacco, in which case at least one of the first sheet 42 and the second sheet 44 shown in FIG. 3 - 5 therefore contains the tobacco.
  • the tobacco contained in at least one of the first sheet 42 and the second sheet 44 can be heated by induction heating of the susceptor-containing sheet 20 , and the flavor or aerosol can be produced.
  • the non-tobacco sheet 27 in the susceptor-containing sheet 20 shown in FIG. 7 B may comprise paper or molded pulp. A lightweight, inexpensive and robust flavor generating article 10 can be formed by this means.
  • the non-tobacco sheet 27 may be a nonwoven fabric or the like, for example.
  • the non-tobacco sheet 27 may hold an aerosol source. The amount of aerosol delivered to the user can be increased in this case.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)
US19/077,085 2022-09-16 2025-03-12 Flavor generation article Pending US20250204580A1 (en)

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PCT/JP2022/034709 WO2024057515A1 (ja) 2022-09-16 2022-09-16 香味発生物品

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EP (1) EP4588371A1 (https=)
JP (1) JP7843360B2 (https=)
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Publication number Priority date Publication date Assignee Title
MX2019002200A (es) * 2016-09-01 2019-07-04 Philip Morris Products Sa Ensamblaje de susceptor y articulo generador de aerosol que comprende el mismo.
CN110545680B (zh) * 2017-06-15 2022-04-01 菲利普莫里斯生产公司 用于制造可感应加热的气溶胶形成杆的方法和设备
WO2018235241A1 (ja) * 2017-06-22 2018-12-27 日本たばこ産業株式会社 香味発生セグメント、ならびにこれを備える香味発生物品および香味吸引システム
CN111542237A (zh) * 2017-12-29 2020-08-14 Jt国际股份公司 气溶胶生成制品及其制造方法
EP3758517A1 (en) 2018-02-26 2021-01-06 Nerudia Limited A substitute smoking consumable

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JP7843360B2 (ja) 2026-04-09
KR20250060925A (ko) 2025-05-07

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