WO2024057515A1

WO2024057515A1 - Flavor generation article

Info

Publication number: WO2024057515A1
Application number: PCT/JP2022/034709
Authority: WO
Inventors: 雄史新川; 学山田
Original assignee: 日本たばこ産業株式会社
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2024-03-21

Abstract

Provided is a flavor generating article comprising a susceptor-containing sheet which is flat and contains a susceptor material and a first sheet and a second sheet each of which has a wave shape and which are arranged on both sides of the susceptor-containing sheet. At least one of the susceptor-containing sheet, the first sheet, and the second sheet contains tobacco.

Description

Flavor-producing articles

The present invention relates to flavor-producing articles.

Conventionally, flavor inhalers have been known for inhaling flavors and the like without burning materials. As such a flavor inhaler, for example, a smoking material heating device is known, which forms an aerosol by heating a smoking material made of tobacco containing volatile components. As such a smoking material, a consumable product including a slab-shaped cigarette, a spacer, and a filter is known (see Patent Document 1).

International Publication No. 2019/162497

An object of the present invention is to provide a cartridge and a flavor inhaler with a new structure.

According to the first aspect, a flavor-producing article is provided. This flavor-generating article has a flat susceptor-containing sheet containing a susceptor material, and corrugated first and second sheets disposed on opposite sides of the susceptor-containing sheet, the susceptor-containing sheet, the first At least one of the sheet and the second sheet contains tobacco.

According to the first embodiment, a gap can be formed between the susceptor-containing sheet and the first and second sheets, through which the flavor or aerosol generated from tobacco passes. Thereby, flavor or aerosol generated from tobacco can be efficiently delivered downstream. Further, since the susceptor-containing sheet contains the susceptor material, the tobacco can be heated without bringing the flavor-generating article into contact with the heating source. Therefore, since the gap does not collapse due to contact of the heater or the like with the flavor-generating article, the flavor or aerosol can be stably delivered. Further, since the susceptor-containing sheet containing the susceptor material is arranged to be sandwiched between the first sheet and the second sheet, the heat generated by the susceptor material is transmitted to the surface of the flavor-generating article through the gap through which the flavor or aerosol passes. may be suppressed. As a result, it is possible to eliminate the need for a complicated heat insulation mechanism in the flavor inhaler.

The gist of the second aspect is that in the first aspect, the cigarette includes an aerosol source.

According to the second aspect, the amount of aerosol delivered to the user can be increased.

In a third aspect, in the first aspect or the second aspect, the first sheet has a first surface facing the susceptor-containing sheet and a second surface opposite to the first surface, and the first sheet has a second surface opposite to the first surface. The gist is that a liner sheet is provided.

According to the third aspect, since the first sheet is covered with the liner sheet, the user can handle the flavor-producing article without directly touching the first sheet. This prevents the first sheet from being crushed, so that the flavor or aerosol can be stably delivered while maintaining the gap between the susceptor-containing sheet and the first sheet. Further, when the flavor-generating article is taken out from the flavor inhaler after use, the liner sheet can prevent the heat of the susceptor-containing sheet from being transmitted to the user's hand.

A gist of a fourth aspect is that in the third aspect, the liner sheet is paper.

According to the fourth aspect, a lightweight and inexpensive flavor-generating article can be provided.

The gist of the fifth aspect is that in the third or fourth aspect, part or all of the gap between the first sheet and the liner sheet is closed.

According to the fifth aspect, air is prevented from passing through the gap between the first sheet and the liner sheet. 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 and second sheets, thereby efficiently delivering the flavor or aerosol generated from the tobacco downstream. Can be done.

A gist of a sixth aspect is that in any one of the first to fifth aspects, at least one of the first sheet and the second sheet includes a paper or pulp mold.

According to the sixth aspect, it is possible to provide a lightweight, inexpensive, and durable flavor-generating article.

In a seventh aspect, in any one of the first to sixth aspects, the height of the wave portion of at least one of the first sheet and the second sheet is 0.2 mm or more and 2.0 mm or less. The gist is:

If the height of the wave portion is less than 0.2 mm, the gap between the susceptor-containing sheet and at least one of the first sheet and the second sheet becomes too small, so that the flavor or aerosol generated from the tobacco is directed downstream. There is a risk that it will not be possible to deliver efficiently. Furthermore, in this case, there is a possibility that the heat insulation properties due to the gap between the susceptor-containing sheet and at least one of the first sheet and the second sheet may be reduced. If the height of the wave portion exceeds 2.0 mm, the size of the flavor-generating article becomes too large. Therefore, according to the seventh aspect, flavor or aerosol can be efficiently delivered, and the size of the flavor-generating article can be suppressed.

The gist of the eighth aspect is that in any of the first to seventh aspects, the height of the wave portion of the first sheet is different from the height of the wave portion of the second sheet.

According to the eighth aspect, the size of 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. Therefore, for example, when a cigarette is formed by laminating a first tobacco sheet and a second tobacco sheet containing different flavors, the first flavor from the first tobacco sheet passes through the first gap, and the second tobacco sheet By passing the second flavor from the sheet through the second gap, the amount of each delivery can be adjusted to supply the desired flavor to the user.

In a ninth aspect, in any of the first to eighth aspects, the width of the wave portion of at least one of the first sheet and the second sheet is 0.2 mm or more and 2.0 mm or less. This is the summary.

If the width of the wave portion is less than 0.2 mm, there is a risk that the suction resistance will increase undesirably when the aerosol is passed between the waves and suctioned. If this width exceeds 2.0 mm, the strength of the flavor-generating article may be weakened. Therefore, according to the ninth aspect, the strength of the flavor-producing article can be maintained while suppressing an undesired increase in suction resistance.

The gist of a tenth aspect is that in any one of the first to ninth aspects, at least one of the first sheet and the second sheet contains a fragrance.

According to the tenth aspect, in addition to flavor or aerosol, fragrance can be supplied to the user.

The gist of the eleventh aspect is that in any one of the first to tenth aspects, the susceptor-containing sheet extends only partially in the longitudinal direction or width direction of the flavor-generating article.

According to the eleventh aspect, the susceptor-containing sheet has a length or width that is shorter than the entire length or width of the flavor-generating article. Therefore, since the flavor-generating article does not need to have a susceptor-containing sheet having a size similar to the overall size of the flavor-generating article, it is possible to provide the required amount of susceptor-containing sheet for the flavor-generating article and reduce the susceptor material. can.

A twelfth aspect is that in any one of the first to eleventh aspects, the susceptor-containing sheet includes the susceptor material in a sheet form and a tobacco sheet laminated on the susceptor material in the sheet form. shall be.

According to the twelfth aspect, the tobacco sheet can be heated by induction heating the sheet-shaped susceptor material.

A thirteenth aspect is based on the twelfth aspect, in that the sheet-shaped susceptor material has a smaller area than the tobacco sheet.

According to the thirteenth aspect, susceptor material can be saved.

In a fourteenth aspect, in the twelfth aspect or the thirteenth aspect, the tobacco sheet includes a first tobacco sheet and a second tobacco sheet, and the sheet-shaped susceptor material includes the first tobacco sheet and the second tobacco sheet. The gist is that it is sandwiched between sheets.

According to the fourteenth aspect, the first tobacco sheet and the second tobacco sheet can be heated more uniformly by induction heating the sheet-shaped susceptor material.

A fifteenth aspect is the gist of the fourteenth aspect, that the first tobacco sheet and the second tobacco sheet are different from each other in at least one of flavor, thickness, aerosol source content, and surface shape.

According to the fifteenth aspect, when the flavors are different, different flavors can be generated from the first tobacco sheet and the second tobacco sheet. Therefore, by adjusting the delivery amount of each flavor, a desired flavor can be supplied to the user. Additionally, if the thicknesses are different, a relatively thin tobacco sheet may have a faster temperature rise and more efficient initial flavor or aerosol delivery. In contrast, with a relatively thick tobacco sheet, the temperature rise is slower and flavor or aerosol generation can be sustained until late in smoking. When the aerosol source contents are different, a tobacco sheet with a relatively lower aerosol source content may have a faster temperature rise and more efficient initial flavor or aerosol delivery. On the other hand, with a tobacco sheet having a relatively high aerosol source content, the temperature rise is slow and flavor or aerosol generation can be sustained until the latter half of smoking. Further, when the surface shapes of the respective tobacco sheets are different, the initial flavor or aerosol delivery can be performed efficiently with the tobacco sheet having a relatively large surface area. In contrast, with a tobacco sheet having a relatively small surface area, the temperature rise is slower and flavor or aerosol generation can be sustained until late in smoking.

The gist of a 16th aspect is that in any of the 1st to 11th aspects, the susceptor-containing sheet includes a tobacco sheet and the granular susceptor material.

According to the sixteenth aspect, the tobacco sheet can be heated by induction heating the granular susceptor material.

The gist of a seventeenth aspect is that in any one of the twelfth to sixteenth aspects, the thickness of the tobacco sheet is 0.25 mm or more and 4.0 mm or less.

If the thickness of the tobacco sheet is less than 0.25 mm, the amount of flavor or aerosol generated per unit area of the sheet may decrease. If the thickness of the tobacco sheet exceeds 4.0 mm, the size of the flavor-generating article will become too large. In this case, since it takes time to heat the tobacco sheet, there is a risk that it will take time to complete the initial puff or that the amount of initial puff delivered will be insufficient. Therefore, according to the seventeenth aspect, flavor or aerosol can be sufficiently generated and the size of the flavor-generating article can be suppressed.

In an 18th aspect, in any one of the 1st to 11th aspects, the susceptor-containing sheet is made of only the susceptor material, or is composed of the susceptor material in the form of a sheet and the susceptor material laminated on the susceptor material in the sheet form. The gist is that it includes tobacco sheets.

According to the eighteenth aspect, since the susceptor-containing sheet does not contain tobacco, at least one of the first sheet and the second sheet contains tobacco. Thereby, the susceptor-containing sheet is heated by induction, so that the tobacco contained in at least one of the first sheet and the second sheet is heated, and flavor or aerosol can be generated.

The gist of a nineteenth aspect is that in any one of the first to eighteenth aspects, at least one of the first sheet and the second sheet contains the tobacco.

According to the nineteenth aspect, by induction heating the susceptor-containing sheet, the tobacco included in at least one of the first sheet and the second sheet can be heated, and flavor or aerosol can be generated.

The gist of the 20th aspect is that in any of the 1st to 19th aspects, at least one of the first sheet and the second sheet is a non-tobacco sheet.

According to the 20th aspect, since at least one of the first sheet and the second sheet is formed of any material other than tobacco, it is possible to provide a lightweight, inexpensive, and durable flavor-generating article.

It is a schematic side view of the flavor suction device which heats the flavor generating article based on this embodiment. FIG. 1 is a schematic diagram of an example of a flavor inhaler. FIG. 2 is a perspective view of a flavor-generating article. FIG. 4 is a cross-sectional view of the flavor-generating article shown in FIG. 3 viewed from the longitudinal direction. It is a sectional view seen from the longitudinal direction of the flavor generating article concerning other embodiments. FIG. 2 is a cross-sectional view showing the structure of a susceptor-containing sheet of the flavor-generating article according to the present embodiment. FIG. 3 is a cross-sectional view showing the structure of a susceptor-containing sheet of a flavor-generating article according to another embodiment. FIG. 3 is a cross-sectional view showing the structure of a susceptor-containing sheet of a flavor-generating article according to another embodiment. FIG. 7 is a cross-sectional view showing the configuration of a susceptor-containing sheet of a flavor-generating article according to still another embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings described below, the same or corresponding components are denoted by the same reference numerals and redundant explanation will be omitted. In this specification, the term "longitudinal direction" refers to the direction in which air passes through the flavor-producing article. Alternatively, "longitudinal direction" refers to the extending direction of concave or convex portions of the first sheet or the second sheet, which will be described later. Furthermore, in this specification, the term "lateral direction" or "width direction" refers to a direction perpendicular to the longitudinal direction.

FIG. 1 is a schematic side view of a flavor suction device that heats a flavor-generating article according to the present embodiment. The flavor inhaler 100 according to the present embodiment is configured to generate flavor or aerosol by heating a flavor source or aerosol source contained in a flavor-generating article. As illustrated, the flavor inhaler 100 includes a first housing 110, a second housing 120, and a mouthpiece 130. The first housing 110 and the second housing 120 may be configured to be detachable from each other. The mouthpiece 130 may be removably connected to one end of the second housing 120 or may be formed integrally with the second housing 120 .

FIG. 2 is a schematic diagram of an example of the flavor inhaler 100. As illustrated, the flavor inhaler 100 includes a battery 140 disposed inside the first housing 110, a heating section 150, a control circuit 170, and a cooling section 160 disposed inside the second housing 120. . The first housing 110 and the second housing 120 are rotatably connected to each other by, for example, a hinge. The first housing 110 and the second housing 120 may be connected to each other so as to be completely separable by snap-fitting, screwing, or the like. Since the first housing 110 and the second housing 120 are completely separated from each other in this way, the cooling part 160, the suction port 130, and the heating part 150 can be easily cleaned.

The battery 140 is configured to supply power to the heating unit 150, control circuit 170, and the like. For example, battery 140 is a lithium ion battery. Battery 140 may be rechargeable by an external power source. The cooling unit 160 is configured to cool the aerosol generated from the flavor generating article 10. The cooling unit 160 may be, for example, a space where passing aerosol is naturally cooled. Alternatively, the cooling unit 160 may be arranged 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. . By arranging or filling the cooling unit 160 with these materials, the aerosol can be cooled more efficiently.

In the illustrated example, the heating unit 150 includes an induction coil 150b for inductively heating the susceptor included in the flavor-generating article 10. Note that the flavor inhaler 100 shown in FIG. 2 includes an electromagnetic shield (not shown) between the heating unit 150 and the control circuit 170 to prevent electromagnetic waves generated by the induction coil 150b from reaching the control circuit 170. You may do so. The heating unit 150 is configured to heat the flavor-generating article 10 to, for example, 200° C. or more and 350° C. or less.

The control circuit 170 is comprised of a CPU, memory, etc., and controls the operation of the flavor inhaler 100. For example, the control circuit 170 starts heating the flavor-generating article 10 in response to a user's operation on an input device such as a push button or a slide switch (not shown), and ends heating the flavor-generating article 10 after a certain period of time has elapsed. The control circuit 170 may end the heating of the flavor-generating article 10 even before a certain period of time has elapsed from the start of heating the flavor-generating article 10 when the number of puff operations by the user exceeds a certain value. . For example, a puffing motion is detected by a sensor (not shown).

Alternatively, the control circuit 170 may start heating the flavor-generating article 10 in response to the start of the puffing operation, and may end heating the flavor-producing article 10 in response to the end of the puffing operation. The control circuit 170 may end the heating of the flavor-producing article 10 even before the end of the puffing operation when a certain period of time has elapsed since the start of the puffing action. In the illustrated example, control circuit 170 is disposed between battery 140 and heating section 150, and suppresses heat transfer from heating section 150 to battery 140.

The flavor-generating article 10 is heated by the heating unit 150 to generate an aerosol source or flavor source vapor and aerosol. The vapor and aerosol generated in the flavor-generating article 10 are cooled by passing through the cooling unit 160 and reach the user's mouth through the mouthpiece 130. In this embodiment, the flavor-generating article 10 is sheet-shaped, plate-shaped, or card-shaped.

Next, the flavor-generating article 10 will be described in detail. FIG. 3 is a perspective view of the flavor-generating article 10. FIG. 4 is a cross-sectional view of the flavor-generating article 10 shown in FIG. 3, viewed from the longitudinal direction d1. As shown in FIG. 3, the flavor generating article 10 may be formed into a generally flat sheet. As shown in FIGS. 3 and 4, the flavor generating article 10 includes a flat susceptor-containing sheet 20 containing a susceptor material, and corrugated first and second sheets 42 and 44 disposed on opposite sides of the susceptor-containing sheet 20. , has. Specifically, the susceptor-containing sheet 20 is a generally flat sheet as a whole. At least one of the susceptor-containing sheet 20, the first sheet 42, and the second sheet 44 contains tobacco and generates flavor or aerosol when heated. In this embodiment, the first sheet 42 and the second sheet 44 have a sinusoidal cross section. However, the present invention is not limited thereto, and at least one of the first sheet 42 and the second sheet 44 may have a wavy cross section of any shape, such as a rectangular wave, a triangular wave, or a sawtooth wave.

Specific examples of tobacco include chopped dried tobacco leaves, crushed tobacco leaves, tobacco extracts (extracts with water, organic solvents, or mixed solutions thereof), and the like. Pulverized leaf tobacco is particles obtained by crushing leaf tobacco. The average particle size of the crushed leaf tobacco can be, for example, 30 to 120 μm. The pulverization can be performed using a known pulverizer, and may be dry pulverization or wet pulverization. Therefore, the leaf tobacco pulverized product is also called leaf tobacco particles. In this embodiment, the average particle size is determined by a laser diffraction/scattering method, and specifically, it is measured using a laser diffraction type particle size distribution measuring device (for example, Horiba LA-950). Further, the type of tobacco is not limited, and yellow varieties, burley varieties, orient varieties, native varieties, and other Nicotiana tabacum varieties, Nicotiana rustica varieties, etc. can be used. The amount of tobacco contained in the first susceptor-containing sheet 20, the first sheet 42, or the second sheet 44 is not particularly limited, but is preferably 1 to 30% by weight, more preferably 10 to 20% by weight.

When at least one of the first sheet 42 and the second sheet 44 contains tobacco, the above-mentioned tobacco may be supported on a sheet made of non-tobacco fibers such as pulp fibers or non-woven fabric, for example. Alternatively, at least one of the first sheet 42 and the second sheet 44 may be formed of a tobacco sheet. As the tobacco sheet, a sheet made of tobacco leaves, a cast sheet of tobacco leaves, a rolled sheet of tobacco leaves, etc. can be used. The tobacco sheet may further include an aerosol source. The type of aerosol source is not particularly limited, and extracts from various natural products and/or their constituent components can be selected depending on the purpose. The aerosol source is preferably a polyhydric alcohol and can be, for example, glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.

According to the flavor generating article 10 shown in FIGS. 3 and 4, there are gaps S1 and S2 between the susceptor-containing sheet 20 and the first sheet 42 and second sheet 44, through which the flavor or aerosol generated from tobacco passes, respectively. can be formed. Thereby, flavor or aerosol generated from tobacco can be efficiently delivered downstream. Further, since the susceptor-containing sheet 20 contains the susceptor material, the tobacco can be heated without bringing the flavor-generating article 10 into contact with a heating source. Therefore, the gaps S1 and S2 will not be collapsed due to contact of the heater or the like with the flavor-generating article 10, so the flavor or aerosol can be stably delivered. Further, since the susceptor-containing sheet 20 containing the susceptor material is arranged to be sandwiched between the first sheet 42 and the second sheet 44, the heat generated by the susceptor material is transferred to the flavor-generating article 10 by the gap through which the flavor or aerosol passes. can be suppressed from being transmitted to the surface. As a result, the flavor inhaler 100 does not require a complicated heat insulation mechanism. Cigarettes may also include an aerosol source. Furthermore, at least one of the susceptor-containing sheet 20, the first sheet 42, and the second sheet 44 may include an aerosol source. In this case, the amount of aerosol delivered to the user can be increased.

As shown in FIG. 4, the first sheet 42 has a first surface 42a facing the susceptor-containing sheet 20 and a second surface 42b opposite to the first surface 42a. In this embodiment, it is preferable that the first liner sheet 51 is provided on the second surface 42b. In this case, since the first sheet 42 is covered by the first liner sheet 51, the user can handle the flavor-generating article 10 without directly touching the first sheet 42. This prevents the first sheet 42 from being crushed, so that the flavor or aerosol can be stably delivered while maintaining the gap S1 between the susceptor-containing sheet 20 and the first sheet 42. Furthermore, when the flavor-generating article 10 is taken out from the flavor inhaler 100 after use, the first liner sheet 51 can prevent the heat of the susceptor-containing sheet 20 from being transmitted to the user's hand.

Similarly, the second sheet 44 has a first surface 44a facing the susceptor-containing sheet 20 and a second surface 44b opposite to the first surface 44a. In this embodiment, it is preferable that the second liner sheet 52 is provided on the second surface 44b. In this case, since the second sheet 44 is covered by the second liner sheet 52, the user can handle the flavor-generating article 10 without directly touching the second sheet 44. This prevents the second sheet 44 from being crushed, so that the flavor or aerosol can be stably delivered while maintaining the gap S2 between the susceptor-containing sheet 20 and the second sheet 44. Furthermore, when the flavor-generating article 10 is taken out from the flavor inhaler 100 after use, the second liner sheet 52 can prevent the heat of the susceptor-containing sheet 20 from being transferred to the user's hand.

At least one of the first liner sheet 51 and the second liner sheet 52 is preferably paper. In this case, a lightweight and inexpensive flavor-generating article 10 can be provided. As shown in FIG. 4, a gap S3 is formed between the first sheet 42 and the first liner sheet 51. It is preferable that part or all of this gap S3 be closed. In this case, air is prevented from passing through the gap S3 between the first sheet 42 and the first liner sheet 51. As a result, the air passing through the flavor-generating article 10 can easily flow through the gaps S1 and S2 between the susceptor-containing sheet 20 and the first sheet 42 and second sheet 44, so that the flavor or aerosol generated from the susceptor-containing sheet 20 can be absorbed. It can be efficiently delivered downstream. Similarly, a gap S4 is formed between the second sheet 44 and the second liner sheet 52. It is preferable that part or all of this gap S4 be closed. In this case, air is prevented from passing through the gap S4 between the second sheet 44 and the second liner sheet 52. As a result, the air passing through the flavor-generating article 10 can easily flow through the gaps S1 and S2 between the susceptor-containing sheet 20 and the first sheet 42 and second sheet 44, so that the flavor or aerosol generated from the susceptor-containing sheet 20 can be absorbed. It can be efficiently delivered downstream. As shown in FIG. 4, at least one of the first liner sheet 51 and the second liner sheet 52 is preferably flat.

As shown in FIG. 3, the first sheet 42 and the second sheet 44 have protrusions and depressions extending along the longitudinal direction d1, and have a wave-shaped cross section. The first sheet 42 and the second sheet 44 can also be said to be ridged sheets as a whole.

At least one of the first sheet 42 and the second sheet 44 may be a non-tobacco sheet formed of a non-tobacco material. In this case, specifically, for example, it is preferable that at least one of the first sheet 42 and the second sheet 44 includes paper or pulp mold. Thereby, the flavor generating article 10 can be made lightweight, inexpensive, and strong. At least one of the first sheet 42 and the second sheet 44 may contain tobacco. In this case, by induction heating the susceptor-containing sheet 20, the tobacco contained in at least one of the first sheet 42 and the second sheet 44 may be heated, and flavor or aerosol may be generated.

In the example shown in FIG. 4, the first sheet 42 and the second sheet 44 have the same wavy cross-sectional shape and face each other with the susceptor-containing sheet 20 in between so that the phases are shifted by 90 degrees. In other words, the first sheet 42 has a convex portion 42c and a concave portion 42d, the second sheet 44 has a convex portion 44c and a concave portion 44d, and the concave portion 42d and the convex portion 44c face each other with the susceptor-containing sheet 20 interposed therebetween. The first sheet 42 and the second sheet 44 may be arranged as follows.

FIG. 5 is a cross-sectional view of a flavor-generating article 10 according to another embodiment as viewed from the longitudinal direction d1. As shown in FIG. 5, the first sheet 42 and the second sheet 44 have the same wavy cross-sectional shape and may face each other with the susceptor-containing sheet 20 interposed therebetween so that the phases match. In other words, the first sheet 42 and the second sheet 44 may be arranged such that the recess 42d of the first sheet 42 and the recess 44d of the second sheet 44 face each other with the susceptor-containing sheet 20 in between.

In the example shown in FIGS. 4 and 5, the height and width of the waves in the cross sections of the first sheet 42 and the second sheet 44 are the same. However, the height or width of the waves in the cross section of the first sheet 42 may be different from the height or width of the waves in the cross section of the second sheet 44.

The height h1 of the corrugated portion of at least one of the first sheet 42 and the second sheet 44 is preferably 0.2 mm or more and 2.0 mm or less. If the height h1 (see FIG. 4) of this wave portion is less than 0.2 mm, the gaps S1 and S2 between the susceptor-containing sheet 20 and at least one of the first sheet 42 and the second sheet 44 will become too small. There is a risk that the flavor or aerosol generated from tobacco cannot be efficiently delivered downstream. Moreover, in this case, there is also a possibility that the heat insulation properties due to the gaps S1 and S2 between the susceptor-containing sheet 20 and at least one of the first sheet 42 and the second sheet 44 may be reduced. If the height h1 of the wave portion exceeds 2.0 mm, the size of the flavor-generating article 10 becomes too large. Therefore, if the height h1 of the wave portion is within the above numerical range, flavor or aerosol can be efficiently delivered and the size of the flavor-generating article 10 can be suppressed.

The width of the wave portion of at least one of the first sheet 42 and the second sheet 44 (that is, the length between the crests of the waves) is preferably 0.2 mm or more and 2.0 mm or less. If this width is less than 0.2 mm, there is a risk that the suction resistance will increase undesirably when the aerosol is passed between the waves and suctioned. If this width exceeds 2.0 mm, the strength of the flavor-generating article 10 may be weakened. Therefore, if this width is within the above numerical range, the strength of the flavor-generating article 10 can be maintained while suppressing an undesirable increase in suction resistance.

At least one of the first sheet 42 and the second sheet 44 may contain a fragrance. In this case, in addition to flavors or aerosols, perfumes can be supplied to the user. The type of fragrance is not particularly limited, and from the viewpoint of imparting a good fragrance feel, acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise, etc. Oil, apple juice, Peruvian 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, carob absolute, β-carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, Citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, cognac oil, coriander oil, cumin aldehyde, davana oil, δ-decalactone, γ-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1, 2-Cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethyl Pyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanoate, oleic acid Ethyl, ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3, (5 or 6)-dimethylpyrazine, 5-ethyl-3- Hydroxy-4-methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract. , γ-heptalactone, γ-hexalactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenylacetate hexyl, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy- 4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immol Tel absolute, β-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, kola nut tincture, labdanum oil, lemon terpeneless oil, licorice extract, linalool, linalyl acetate, lovage Root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, paramethoxybenzaldehyde, methyl-2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3 - Methylvaleric acid, mimosa absolute, honey, myristic acid, nerol, nerolidol, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, ω -Pentadecalactone, peppermint oil, petitgrain paraguayan oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaetol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, Raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2 -tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4 -(2,6,6-trimethyl-1,3-cyclohexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, Vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5), sugar (sucrose) , fructose, etc.), cocoa powder, carob powder, coriander powder, licorice powder, orange peel powder, rose pip powder, chamomile flower powder, lemon verbena powder, peppermint powder, leaf powder, spearmint powder, black tea powder, natural plants. At least one of natural fragrances (eg, jasmine oil, lemon oil, vetiver oil, lovage oil), esters may be selected.

Furthermore, the susceptor-containing sheet 20 may extend only in a portion of the flavor-generating article 10 in the longitudinal direction d1 or the width direction d2. In this case, the susceptor-containing sheet 20 has a length or width that is shorter than the overall length or width of the flavor-generating article 10. Therefore, the flavor-generating article 10 does not need to be provided with a susceptor-containing sheet 20 having the same size as the entire size of the flavor-generating article 10, so a necessary amount of susceptor-containing sheet 20 is provided for the flavor-generating article 10, and the susceptor material is can be reduced.

FIG. 6A is a cross-sectional view showing the configuration of the susceptor-containing sheet 20 of the flavor-generating article 10 according to the present embodiment. FIG. 6B is a cross-sectional view showing the structure of the susceptor-containing sheet 20 of the flavor-generating article 10 according to another embodiment. As shown in FIG. 6A, in this embodiment, the susceptor-containing sheet 20 may include a sheet-shaped susceptor material 25 and a tobacco sheet 21 laminated on the sheet-shaped susceptor material 25. In this case, the tobacco sheet 21 can be heated by induction heating the sheet-shaped susceptor material 25.

Specifically, in this embodiment, the tobacco sheet 21 of the susceptor-containing sheet 20 preferably includes a first tobacco sheet 21a and a second tobacco sheet 21b. In this case, as shown in FIG. 6A, the sheet-shaped susceptor material 25 is preferably sandwiched between the first tobacco sheet 21a and the second tobacco sheet 21b. In this case, by induction heating the sheet-shaped susceptor material 25, the first tobacco sheet 21a and the second tobacco sheet 21b can be heated more uniformly. The present invention is not limited to this, and the second tobacco sheet 21b may be directly stacked on the first tobacco sheet 21a. Further, the tobacco sheet 21 may include only either the first tobacco sheet 21a or the second tobacco sheet 21b.

The first tobacco sheet 21a and the second tobacco sheet 21b may have the same shape (thickness, length, or width) or the same components, or may have different shapes (thickness, length, or width) or different It may contain components. Specifically, for example, the first tobacco sheet 21a and the second tobacco sheet 21b may differ from each other in at least one of flavor, thickness, aerosol source content, and surface shape. When the flavors are different, different flavors can be generated from the first tobacco sheet 21a and the second tobacco sheet 21b. Therefore, by adjusting the delivery amount of each flavor, a desired flavor can be supplied to the user. For example, by using the first tobacco sheet 21a and the second tobacco sheet 21b as tobacco sheets containing different tobacco types and blending ratios such as burley, yellow, orient, and traditional tobacco, the flavors can be made to differ. . If the thicknesses are different, a thinner tobacco sheet may heat up faster and provide more efficient initial flavor or aerosol delivery. In contrast, with a relatively thick tobacco sheet, the temperature rise is slower and flavor or aerosol generation can be sustained until late in smoking. When the aerosol source contents are different, a tobacco sheet with a relatively lower aerosol source content may have a faster temperature rise and more efficient initial flavor or aerosol delivery. On the other hand, with a tobacco sheet having a relatively high aerosol source content, the temperature rise is slow and flavor or aerosol generation can be sustained until the latter half of smoking. Further, when the surface shapes of the respective tobacco sheets are different, the initial flavor or aerosol delivery can be performed efficiently with the tobacco sheet having a relatively large surface area. In contrast, with a tobacco sheet having a relatively small surface area, the temperature rise is slower and flavor or aerosol generation can be sustained until late in smoking.

In the example shown in FIG. 5, the first sheet 42 and the second sheet 44 have the same wavy cross-sectional shape, as described above. However, the present invention is not limited to this, and the height of the wave portion of the first sheet 42 and the height of the wave portion of the second sheet 44 may be different. In this case, the size of the gap S1 between the susceptor-containing sheet 20 and the first sheet 42 and the gap S2 between the susceptor-containing sheet 20 and the second sheet 44 can be made different. Therefore, for example, as shown in FIG. 6A, when the susceptor-containing sheet 20 is formed by laminating the first tobacco sheet 21a and the second tobacco sheet 21b, the first flavor from the first tobacco sheet 21a, By allowing the second flavor from the second tobacco sheet 21b to pass through the gap S1 and the second flavor from the second tobacco sheet 21b through the gap S2, it is possible to adjust the respective delivery amounts and supply a desired flavor to the user.

The sheet-shaped susceptor material 25 may have a smaller area than the tobacco sheet 21. In this case, susceptor material 25 can be saved. Note that the area here refers to the area of the tobacco sheet 21 or the susceptor material 25 extending in the longitudinal direction d1 and the width direction d2 shown in FIG.

As shown in FIG. 6B, in other embodiments, the susceptor-containing sheet 20 may include a tobacco sheet 21 and a particulate susceptor material 26. In this case, the tobacco sheet 21 can be heated by induction heating the granular susceptor material 26. In the illustrated example, the granular susceptor material 26 is included inside the tobacco sheet 21, but the present invention is not limited thereto, and the susceptor material 26 may be arranged so as to adhere to the surface of the tobacco sheet 21. The particle size of the granular susceptor material 26 may be, for example, 0.1 mm or more and 3 mm or less.

The thickness of the tobacco sheet 21 shown in FIGS. 6A and 6B is preferably 0.25 mm or more and 4.0 mm or less. If the thickness of the tobacco sheet 21 is less than 0.25 mm, the amount of flavor or aerosol generated per unit area of the sheet may decrease. If the thickness of the tobacco sheet 21 exceeds 4.0 mm, the size of the flavor-generating article 10 will become too large. In this case, since it takes time to heat the tobacco sheet 21, there is a risk that it will take time to complete the initial puff or that the amount of initial puff delivered will be insufficient. Therefore, if the thickness of the tobacco sheet 21 is within the above range, flavor or aerosol can be sufficiently generated and the size of the flavor-generating article 10 can be suppressed. In addition, as shown in FIG. 6A, when the tobacco sheet 21 includes a plurality of tobacco sheets, the thickness here refers to the total thickness of the plurality of tobacco sheets.

As the tobacco sheet 21 shown in FIGS. 6A and 6B, a sheet made of tobacco leaves, a cast sheet of tobacco leaves, a rolled sheet of tobacco leaves, etc. can be used. The tobacco sheet 21 may further contain an aerosol source. The type of aerosol source is not particularly limited, and extracts from various natural products and/or their constituent components can be selected depending on the purpose. The aerosol source is preferably a polyhydric alcohol and can be, for example, glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. Moreover, the tobacco sheet 21 may contain the above-mentioned flavoring material that can be added to the first sheet 42 and the second sheet 44.

FIG. 7A is a cross-sectional view showing the configuration of the susceptor-containing sheet 20 of the flavor-generating article 10 according to another embodiment. FIG. 7B is a cross-sectional view showing the configuration of the susceptor-containing sheet 20 of the flavor-generating article 10 according to still another embodiment. The susceptor-containing sheet 20 shown in FIGS. 7A and 7B differs from the susceptor-containing sheet 20 shown in FIGS. 6A and 6B in that it does not contain tobacco. The susceptor-containing sheet 20 shown in FIG. 7A consists only of a sheet-shaped susceptor material 25. Further, the susceptor-containing sheet 20 shown in FIG. 7B includes a sheet-shaped susceptor material 25 and a non-tobacco sheet 27 laminated on the susceptor material 25. Since the susceptor-containing sheet 20 shown in FIGS. 7A and 7B does not contain tobacco, in this case, at least one of the first sheet 42 and the second sheet 44 shown in FIGS. 3 to 5 contains tobacco. As a result, the susceptor-containing sheet 20 is heated by induction, so that the tobacco contained in at least one of the first sheet 42 and the second sheet 44 is heated, and flavor or aerosol can be generated.

In the susceptor-containing sheet 20 shown in FIG. 7B, the non-tobacco sheet 27 may include a paper or pulp mold. Thereby, the flavor generating article 10 can be made lightweight, inexpensive, and strong. The non-tobacco sheet 27 may be made of, for example, nonwoven fabric. The non-tobacco sheet 27 may hold an aerosol source. In this case, the amount of aerosol delivered to the user can be increased.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the claims and the technical idea described in the specification and drawings. is possible. Note that any shape or material not directly described in the specification or drawings is within the scope of the technical idea of the present invention as long as it achieves the action and effect of the present invention.

10: Flavor generating article 20: Sheet member 21: Tobacco sheet 21a: First tobacco sheet 21b: Second tobacco sheet 25, 26: Susceptor material 27: Non-tobacco sheet 42: First sheet 42a: First surface 42b: Second Surface 44: Second sheet 44a: First surface 44b: Second surface 51: First liner sheet S3: Gap S4: Gap d1: Longitudinal direction d2: Width direction h1: Height

Claims

a flat susceptor-containing sheet containing a susceptor material;
a corrugated first sheet and a second sheet disposed on both sides of the susceptor-containing sheet;
A flavor-producing article, wherein at least one of the susceptor-containing sheet, the first sheet, and the second sheet contains tobacco.
The flavor generating article according to claim 1,
The tobacco is a flavor generating article that includes an aerosol source.
In the flavor generating article according to claim 1 or 2,
The first sheet has a first surface facing the susceptor-containing sheet and a second surface opposite to the first surface, and a liner sheet is provided on the second surface.
The flavor generating article according to claim 3,
The flavor generating article, wherein the liner sheet is paper.
In the flavor generating article according to claim 3 or 4,
A flavor-generating article, wherein part or all of the gap between the first sheet and the liner sheet is closed.
The flavor generating article according to any one of claims 1 to 5,
A flavor generating article, wherein at least one of the first sheet and the second sheet includes a paper or pulp mold.
The flavor generating article according to any one of claims 1 to 6,
A flavor-generating article, wherein the height of a corrugated portion of at least one of the first sheet and the second sheet is 0.2 mm or more and 2.0 mm or less.
The flavor generating article according to any one of claims 1 to 7,
A flavor-generating article, wherein the height of the corrugated portion of the first sheet is different from the height of the corrugated portion of the second sheet.
The flavor generating article according to any one of claims 1 to 8,
A flavor-generating article, wherein the width of the corrugated portion of at least one of the first sheet and the second sheet is 0.2 mm or more and 2.0 mm or less.
The flavor generating article according to any one of claims 1 to 9,
At least one of the first sheet and the second sheet contains a flavoring agent.
The flavor generating article according to any one of claims 1 to 10,
The susceptor-containing sheet is a flavor-generating article that extends only partially in the longitudinal direction or width direction of the flavor-generating article.
The flavor generating article according to any one of claims 1 to 11,
The susceptor-containing sheet is a flavor-generating article including the sheet-shaped susceptor material and a tobacco sheet laminated on the sheet-shaped susceptor material.
The flavor generating article according to claim 12,
The susceptor material in sheet form has a smaller area than the tobacco sheet.
The flavor generating article according to claim 12 or 13, wherein the tobacco sheet includes a first tobacco sheet and a second tobacco sheet,
The susceptor material in the form of a sheet is sandwiched between the first tobacco sheet and the second tobacco sheet.
The flavor generating article according to claim 14,
The first tobacco sheet and the second tobacco sheet are flavor generating articles that differ from each other in at least one of flavor, thickness, aerosol source content, and surface shape.
The flavor generating article according to any one of claims 1 to 11,
The susceptor-containing sheet is a flavor-generating article including a tobacco sheet and the susceptor material in the form of particles.
The flavor generating article according to any one of claims 12 to 16,
The flavor-generating article, wherein the tobacco sheet has a thickness of 0.25 mm or more and 4.0 mm or less.
The flavor generating article according to any one of claims 1 to 11,
The flavor generating article, wherein the susceptor-containing sheet is made of only the susceptor material, or includes the sheet-like susceptor material and a non-tobacco sheet laminated on the sheet-like susceptor material.
The flavor generating article according to any one of claims 1 to 18,
A flavor-producing article, wherein at least one of the first sheet and the second sheet contains the tobacco.
The flavor generating article according to any one of claims 1 to 19,
A flavor-producing article, wherein at least one of the first sheet and the second sheet is a non-tobacco sheet.