CN117597034A

CN117597034A - Tobacco sheet for non-combustion heating type flavor inhaler, and non-combustion heating type flavor inhaler system

Info

Publication number: CN117597034A
Application number: CN202280044983.1A
Authority: CN
Inventors: 小出明弘; 打井公隆; 松田尚大; 桥本彩香; 山田学; 四分一弘; 本溜哲也; 樱井亨
Original assignee: Japan Tobacco Inc
Current assignee: Japan Tobacco Inc
Priority date: 2021-04-27
Filing date: 2022-04-26
Publication date: 2024-02-23
Also published as: WO2023053633A1; WO2023054688A1

Abstract

The invention provides a tobacco sheet for a non-combustion heating type flavor inhaler with high fluffiness. The tobacco sheet for a non-combustion heating type flavor inhaler comprises a tobacco powder having a cumulative 90% particle diameter (D90) of 200 [ mu ] m or more in a volume-based particle size distribution measured by a dry laser diffraction method.

Description

Tobacco sheet for non-combustion heating type flavor inhaler, and non-combustion heating type flavor inhaler system

Technical Field

The present invention relates to a tobacco sheet for a non-combustion heating type flavor inhaler, and a non-combustion heating type flavor inhaler system.

Background

In a combustion type flavor aspirator (cigarette), a tobacco filler including tobacco leaves is combusted to obtain flavor. As an alternative to the combustion type flavor aspirator, a non-combustion heating type flavor aspirator has been proposed in which a flavor source such as a tobacco sheet is heated instead of being burned to obtain a flavor. The heating temperature of the non-combustion heating type flavor aspirator is lower than the combustion temperature of the combustion type flavor aspirator, for example, about 400 ℃ or lower. In this way, since the heating temperature of the non-combustion heating type flavor aspirator is low, from the viewpoint of increasing the smoke amount, the non-combustion heating type flavor aspirator may be added with an aerosol generating agent to the flavor source. The aerosol generating agent is gasified by heating to generate an aerosol. The aerosol is supplied to the user along with flavor components such as tobacco components, and the user can obtain a sufficient flavor.

The non-combustion heating type flavor aspirator may include, for example: a tobacco-containing section filled with tobacco sheets or the like, a cooling section, and a filter section. The axial length of the tobacco-containing section of the non-combustion heated flavor aspirator is typically shorter than the axial length of the tobacco-containing section of the combustion flavor aspirator due to its relationship to the heating heater. Therefore, in the non-combustion heating type flavor aspirator, a large number of tobacco sheets or the like are filled in a short section containing tobacco segments in order to ensure the aerosol generation amount during heating. In order to fill a large number of tobacco sheets or the like in a short section, a non-combustion heating type flavor aspirator generally uses a tobacco sheet having low bulk, i.e., a high density. The fluffiness is a value indicating the volume of a given mass of filaments of tobacco sheet compressed for a given period of time under a given pressure. For example, patent documents 1 and 2 disclose tobacco sheets used for non-combustion heating type flavor aspirators.

Prior art literature

Patent literature

Patent document 1: japanese patent No. 5969923

Patent document 2: international publication No. 2020/058814

Disclosure of Invention

Problems to be solved by the invention

However, the present inventors have found that when a tobacco sheet having low bulk (high density) is used in consideration of the heating system, the heating capacity of the heater, and the aerosol generation, the total heat capacity of the tobacco-containing segment increases, and therefore, depending on the heating method and the capacity of the heater, the tobacco sheet filled in the tobacco-containing segment may not sufficiently exert the aerosol generation function. In order to solve this problem, it is considered to reduce the total heat capacity of the tobacco-containing segment.

In order to reduce the total heat capacity of the tobacco-containing segment, the present inventors studied (1) reducing the specific heat of the tobacco raw material contained in the tobacco sheet and (2) using a tobacco sheet having high bulk (low density). However, it is difficult to reduce the specific heat of the tobacco raw material itself for (1), so it is considered that it is effective to reduce the total heat capacity of the tobacco-containing section by (2). Therefore, it is desired to develop a tobacco sheet with high bulk (low density) suitable for use in a non-combustion heated flavor aspirator.

The purpose of the present invention is to provide a tobacco sheet for a non-combustion heating type flavor-absorbing device, a non-combustion heating type flavor-absorbing device comprising the tobacco sheet, and a non-combustion heating type flavor-absorbing system.

Means for solving the problems

The present invention includes the following embodiments.

[1] A tobacco sheet for a non-combustion heating type flavor inhaler, comprising a tobacco powder having a cumulative 90% particle diameter (D90) of 200 [ mu ] m or more in a volume-based particle size distribution measured by a dry laser diffraction method.

[2] The tobacco sheet for a non-combustion heating type flavor inhaler according to item [1], wherein the tobacco powder is at least one tobacco material selected from the group consisting of tobacco leaves, veins and residual stems.

[3] The tobacco sheet for a non-combustion heating type flavor inhaler according to [1] or [2], wherein the proportion of the tobacco powder contained in 100 mass% of the tobacco sheet is 45 to 95 mass%.

[4] The tobacco sheet for a non-combustion heating type flavor inhaler according to any one of [1] to [3], wherein the tobacco sheet further comprises an aerosol generator.

[5] The tobacco sheet for a non-combustion heating type flavor inhaler according to [4], wherein the aerosol generating agent is at least one selected from the group consisting of glycerin, propylene glycol and 1, 3-butylene glycol.

[6] The tobacco sheet for a non-combustion heating type flavor inhaler according to [4] or [5], wherein the proportion of the aerosol-generating agent contained in 100 mass% of the tobacco sheet is 4 to 50 mass%.

[7] The tobacco sheet for a non-combustion heating type flavor inhaler according to any one of [1] to [6], wherein the tobacco sheet further comprises a molding agent.

[8] The tobacco sheet for a non-combustion heating type flavor inhaler according to item [7], wherein the molding agent is at least one selected from the group consisting of polysaccharides, proteins and synthetic polymers.

[9] The tobacco sheet for a non-combustion heating type flavor inhaler according to [7] or [8], wherein the proportion of the molding agent contained in 100 mass% of the tobacco sheet is 0.1 to 15 mass%.

[10] A non-combustion heating type flavor aspirator comprising a tobacco-containing segment comprising the non-combustion heating type flavor aspirator tobacco sheet of any one of [1] to [9 ].

[11] The non-combustion heating type flavor aspirator according to [10], wherein the non-combustion heating type flavor aspirator further comprises a mouthpiece section,

the tobacco-containing segment includes a first segment containing an aerosol-generating agent and a second segment containing the non-combustion heating type flavor-smoking tobacco sheet,

the mouthpiece section includes a cooling section and a filter section.

[12] The non-combustion heating type flavor aspirator according to [11], wherein the first section comprises a tubular packaging material (wrapper), and a nonwoven fabric formed of plant fibers filled in the packaging material, and the nonwoven fabric comprises the aerosol generating agent.

[13] The non-combustion heating type flavor aspirator according to [10], wherein the non-combustion heating type flavor aspirator is rod-shaped and further comprises a mouthpiece section,

the mouthpiece section includes a filter section having a filter material,

the filter medium is composed of fibers having a Y-shaped cross section in the circumferential direction and having a single fiber denier of 8 to 12.

[14]According to [13]]The non-combustion heating type flavor aspirator, wherein the density of the filter tip filter material is 0.09g/cm ³ Above and 0.14g/cm ³ The following is given.

[15] The non-combustion heating type flavor aspirator according to [10], wherein the non-combustion heating type flavor aspirator further comprises:

adjacent components adjacent to the tobacco-containing segment, and

winding a winding package material for wrapping the tobacco-containing section or winding package material for wrapping the tobacco-containing section and the adjacent member,

the wound package material has a high heat transfer portion having higher heat transfer than the abutted wound member,

the high heat transfer portion wrap packages adjacent the downstream end of the tobacco containing section.

[16] The non-combustion heating type flavor aspirator according to [15], wherein the high heat transfer portion winds and wraps the tobacco-containing section from the vicinity of the downstream end to the vicinity of the upstream end of the adjacent member.

[17] A non-combustion heated flavor pumping system, comprising:

[10] the non-combustion heating type flavor aspirator of any one of [16], and

and a heating device for heating the tobacco-containing section.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, a tobacco sheet for a non-combustion heating type flavor inhaler having high bulk, a non-combustion heating type flavor aspirator including the tobacco sheet, and a non-combustion heating type flavor aspiration system can be provided.

Drawings

Fig. 1 is a cross-sectional view showing an example of the non-combustion heating type flavor aspirator of the present embodiment.

Fig. 2 is a cross-sectional view showing an example of the non-combustion heating type flavor-absorbing system according to the present embodiment, (a) shows a state before the non-combustion heating type flavor-absorbing device is inserted into the heating device, and (b) shows a state in which the non-combustion heating type flavor-absorbing device is inserted into the heating device and heated.

Fig. 3 is a schematic diagram showing an example of the non-combustion heating type flavor aspirator according to the present embodiment.

Fig. 4 is a schematic diagram showing an example of a method of forming the first segment according to the present embodiment.

Fig. 5 is a schematic view showing an example of a method for bonding the packaging material in the first section of the present embodiment.

Fig. 6 is a schematic diagram illustrating other embodiments of the tobacco-containing segment of the present embodiment.

Fig. 7 is a schematic diagram showing an example of the non-combustion heating type fragrance suction system according to the present embodiment.

Fig. 8 is a schematic diagram showing another example of the configuration of a heater in the non-combustion heating type fragrance extraction system according to the present embodiment.

Fig. 9 is a schematic view of a non-combustion heating type flavor aspirator according to the present embodiment.

Fig. 10 is a schematic view of the non-combustion heating type fragrance pumping system according to the present embodiment.

Fig. 11 is a schematic diagram of a non-combustion heating type fragrance pumping system according to the present embodiment.

Fig. 12 is a view for explaining an end portion on the suction port end side of a region where the cooling section is in contact with the heating device.

Fig. 13 is a view for explaining an end portion on the suction port end side of a region where the cooling section is in contact with the heating device.

Fig. 14 is a graph showing the delivery amounts of nicotine and glycerin in the reference example.

Fig. 15 is a graph showing the delivery amounts of nicotine and glycerin in the reference example.

Fig. 16 is a graph showing the delivery amounts of nicotine and glycerin in the reference example.

Fig. 17 is a graph showing the delivery amounts of nicotine and glycerin in the reference example.

Fig. 18 is a diagram showing one embodiment of the non-combustion heating type flavor aspirator.

Fig. 19 is a diagram showing one embodiment of a non-combustion heating type fragrance extraction system.

Fig. 20A is a view showing another embodiment of the non-combustion heating type flavor aspirator.

Fig. 20B is a view showing another embodiment of the non-combustion heating type flavor aspirator.

Fig. 20C is a view showing another embodiment of the non-combustion heating type flavor aspirator.

Fig. 21 is a diagram showing a model for calculating heat transfer characteristics.

Fig. 22 is a diagram showing an outline of the bending test.

Fig. 23 is a graph showing the smoke volume of the non-combustion heating type flavor aspirator.

Fig. 24 is a graph showing the correlation of the smoke amount in the automatic smoking system and the sensory evaluation.

Symbol description

1. Non-combustion heating type fragrant aspirator

2. Tobacco-containing segment

3. Cooling section

4. Center hole section

5. Filter segment

6. Cigarette holder section

7. Tubular member

8. Perforation

9. Second filling layer

10. Second inner rod packing material

11. Outer rod packaging material

12. Cigarette holder lining paper

13. Heating device

14. Fuselage body

15. Heater

16. Metal tube

17. Battery cell

18. Control unit

19. Concave part

Detailed Description

[ tobacco sheet for non-Combustion heating type flavor aspirator ]

The tobacco sheet for a non-combustion heating type flavor inhaler (hereinafter also referred to as "tobacco sheet") according to the present embodiment contains a tobacco powder having a cumulative 90% particle diameter (D90) of 200 μm or more in a volume-based particle size distribution measured by a dry laser diffraction method.

In the tobacco sheet of the present embodiment, since the D90 of the tobacco powder measured by the dry laser diffraction method is 200 μm or more, the voids between the tobacco powders in the tobacco sheet are large, and it is presumed that the voids contribute to the improvement of the bulk of the tobacco sheet. The tobacco sheet of the present embodiment preferably further contains an aerosol-generating agent and a molding agent, and the bulk of the tobacco sheet is further improved by setting the mixing ratio thereof to a predetermined range.

(tobacco powder)

Examples of the tobacco powder contained in the tobacco sheet of the present embodiment include tobacco leaves, veins, residual stems, and the like. One kind of these may be used, or two or more kinds may be used in combination. They can be used as tobacco powder by cutting them into given sizes. The cumulative 90% particle diameter (D90) in the volume-based particle diameter distribution measured by the dry laser diffraction method is 200 μm or more, preferably 350 μm or more, and more preferably 500 μm or more as the size of the tobacco powder. The upper limit of the D90 range is not particularly limited, and may be, for example, 2000 μm or less.

In addition, from the viewpoint of further improving the bulk of the tobacco sheet, the cumulative 50% particle diameter (D50) in the volume-based particle size distribution measured by the dry laser diffraction method is preferably 40 μm or more, more preferably 100 μm or more, and still more preferably 200 μm or more. The upper limit of the D50 range is not particularly limited, and may be, for example, 1000 μm or less. In the present embodiment, the D90 and D50 measurements by the dry laser diffraction method can be performed using, for example, a Mastersizer (trade name, manufactured by spectra company Malvern Panalytical company).

The proportion of the tobacco powder contained in 100 mass% of the tobacco sheet is preferably 45 to 95 mass%. By setting the proportion of the tobacco powder to 45 mass% or more, tobacco aroma can be sufficiently generated upon heating. Further, by setting the ratio of the tobacco powder to 95% by mass or less, a sufficient amount of the aerosol-generating agent and the molding agent can be contained. The proportion of the tobacco powder is more preferably 50 to 93% by mass, still more preferably 55 to 90% by mass, particularly preferably 60 to 88% by mass.

(Aerosol generating agent)

From the viewpoint of increasing the amount of smoke during heating, the tobacco sheet of the present embodiment preferably further contains an aerosol-generating agent. Examples of the aerosol generating agent include glycerin, propylene glycol, and 1, 3-butanediol. One kind of these may be used, or two or more kinds may be used in combination.

When the aerosol-generating agent is contained in the tobacco sheet, the proportion of the aerosol-generating agent contained in 100 mass% of the tobacco sheet is preferably 4 to 50 mass%. By setting the proportion of the aerosol-generating agent to 4 mass% or more, sufficient aerosol can be generated upon heating from the viewpoint of the amount. In addition, by setting the proportion of the aerosol-generating agent to 50 mass% or less, sufficient aerosol can be generated upon heating from the viewpoint of heat capacity. The proportion of the aerosol generating agent is more preferably 6 to 40% by mass, still more preferably 8 to 30% by mass, particularly preferably 10 to 20% by mass.

(Molding agent)

From the viewpoint of ensuring the shape, the tobacco sheet of the present embodiment preferably further contains a molding agent. Examples of the molding agent include polysaccharides, proteins, and synthetic polymers. One kind of these may be used, or two or more kinds may be used in combination. Examples of the polysaccharide include cellulose derivatives and polysaccharides derived from natural sources.

Examples of the cellulose derivative include: cellulose ethers such as methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxymethyl ethyl cellulose, hydroxypropyl methyl cellulose, benzyl cellulose, trityl cellulose, cyanoethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, and aminoethyl cellulose; organic acid esters such as cellulose acetate, cellulose formate, cellulose propionate, cellulose butyrate, cellulose benzoate, cellulose phthalate, and tosyl cellulose; inorganic acid esters such as nitrocellulose, cellulose sulfate, cellulose phosphate, and cellulose xanthate.

Examples of the polysaccharide of natural origin include: polysaccharides derived from plants such as guar gum, tara gum, locust bean gum, tamarind gum, pectin, gum arabic, gum tragacanth, karaya gum, ghatti gum, arabinogalactan, flaxseed gum, cassia gum, psyllium seed gum, and sand sagebrush seed gum; polysaccharide derived from algae such as carrageenan, agar, alginic acid, propylene glycol alginate, red algae gelatin, and extract of vesicular algae; polysaccharides derived from microorganisms such as xanthan gum, gellan gum, curdlan, pullulan, agrobacterium succinoglycan (agrobacterium succinoglycan), welan gum, macrophomopsis gum, and neutral gum (rhamsan gum); polysaccharides derived from crustaceans such as chitin, chitosan, and glucosamine; starch, sodium starch glycolate, alpha starch, dextrin, and other starches.

Examples of the protein include: cereal proteins such as wheat gluten and rye gluten. Examples of the synthetic polymer include: polyphosphoric acid, sodium polyacrylate, polyvinylpyrrolidone, and the like.

When the molding agent is contained in the tobacco sheet, the proportion of the molding agent contained in 100 mass% of the tobacco sheet is preferably 0.1 to 15 mass%. By setting the proportion of the molding agent to 0.1 mass% or more, the raw material mixture can be molded into a sheet shape. Further, by setting the ratio of the molding agent to 15 mass% or less, it is possible to fully utilize other raw materials for securing the functions required for the tobacco-containing section of the non-combustion heating type flavor aspirator. The proportion of the molding agent is more preferably 0.2 to 13% by mass, still more preferably 0.5 to 12% by mass, particularly preferably 1 to 10% by mass.

(reinforcing agent)

From the viewpoint of further improving physical properties, the tobacco sheet of the present embodiment may further contain a reinforcing agent. As the reinforcing agent, for example, there may be mentioned: fibrous pulp, insoluble fiber, fibrous synthetic cellulose and other fibrous substances, pectin suspended water and other liquid substances with surface coating function formed into film during drying, and the like. One kind of these may be used, or two or more kinds may be used in combination.

When the reinforcing agent is contained in the tobacco sheet, the proportion of the reinforcing agent contained in 100 mass% of the tobacco sheet is preferably 4 to 60 mass%. In this range, other materials for ensuring the function required for the tobacco-containing section of the non-combustion heating type flavor aspirator can be fully utilized. The proportion of the reinforcing agent is more preferably 4.5 to 55% by mass, still more preferably 5 to 50% by mass.

(moisturizer)

From the viewpoint of maintaining quality, the tobacco sheet of the present embodiment may further contain a humectant. Examples of the humectant include: sugar alcohols such as sorbitol, erythritol, xylitol, maltitol, lactitol, mannitol, and reduced maltose syrup. One kind of these may be used, or two or more kinds may be used in combination.

When the humectant is contained in the tobacco sheet, the proportion of the humectant contained in 100 mass% of the tobacco sheet is preferably 1 to 15 mass%. In this range, other materials for ensuring the function required for the tobacco-containing section of the non-combustion heating type flavor aspirator can be fully utilized. The content of the humectant is more preferably 2 to 12% by mass, and still more preferably 3 to 10% by mass.

(other Components)

The tobacco sheet of the present embodiment may contain, in addition to the tobacco powder, the aerosol-generating agent, the molding agent, the reinforcing agent, and the humectant, flavoring agents such as flavors and flavoring agents, coloring agents, humectants, preservatives, and diluents such as inorganic substances, as necessary.

(fluffiness)

The tobacco sheet of the present embodiment preferably has a bulk of 190cc/100g or more. By setting the bulk to 190cc/100g or more, the total heat capacity of the tobacco-containing segment of the non-combustion heating type flavor aspirator can be sufficiently reduced, and the tobacco sheet filled in the tobacco-containing segment can contribute more to aerosol generation. The bulk is more preferably 210cc/100g or more, and still more preferably 230cc/100g or more. The upper limit of the range of the fluffiness is not particularly limited, and may be, for example, 800cc/100g or less. The fluffiness was measured by DD-60A (trade name, manufactured by Borgward Co., ltd.) after cutting a tobacco sheet to a size of 0.8 mm. Times.9.5 mm and storing the cut tobacco sheet in a 60% room at 22℃for 48 hours. The measurement was performed by placing 15g of the cut tobacco sheet into a cylindrical container having an inner diameter of 60mm and obtaining a volume when compressed for 30 seconds under a load of 3 kg.

(constitution of tobacco sheet)

In the present embodiment, the "tobacco sheet" is formed by molding a component constituting the tobacco sheet, such as tobacco powder, into a sheet shape. Here, "sheet" means a shape having 1 pair of main surfaces and side surfaces which are substantially parallel. The length and width of the tobacco sheet are not particularly limited and may be appropriately adjusted according to the manner of filling. The thickness of the tobacco sheet is not particularly limited, but is preferably 100 to 1000 μm, more preferably 150 to 600 μm, in view of both heat transfer efficiency and strength.

(method for producing tobacco sheet)

The tobacco sheet according to the present embodiment can be produced by a known method such as a rolling method or a casting method. Details of various tobacco sheets manufactured by such a method are disclosed in "tobacco dictionary, tobacco general research center, 2009.3.31".

< calendering method >)

As a method for producing a tobacco sheet by rolling, for example, a method including the following steps is given.

(1) And a step of mixing water, tobacco powder, an aerosol generator, a molding agent and a reinforcing agent to obtain a mixture.

(2) And a step of throwing the mixture into a calender roll to calender.

(3) And drying the rolled and molded product by a dryer.

In the case of producing a tobacco sheet by this method, the surface of the calender roll may be heated or cooled according to the purpose, or the rotation speed of the calender roll may be adjusted. In addition, the interval between the calender rolls may be adjusted. In order to obtain a desired weight per unit area of the tobacco sheet, 1 or more calender rolls may be used.

< casting method >)

As a method for producing a tobacco sheet by casting, for example, a method including the following steps can be cited.

(1) And a step of mixing water, tobacco powder, an aerosol generator, a molding agent, and pulp to obtain a mixture.

(2) And a step of forming a tobacco sheet by thinly stretching (casting) the mixture and drying the stretched mixture.

In the case of producing a tobacco sheet by this method, a step of removing a part of components such as nitrosamine by ultraviolet irradiation or X-ray irradiation of a slurry obtained by mixing water, tobacco powder, aerosol generating agent, molding agent and pulp may be added.

Non-combustion heating type flavor aspirator

The non-combustion heating type flavor aspirator of the present embodiment includes a tobacco-containing segment including the tobacco sheet of the present embodiment and the like. The non-combustion heating type flavor aspirator of the present embodiment is provided with the tobacco-containing segment filled with the tobacco sheet or the like having high fluffiness of the present embodiment, and therefore, the total heat capacity of the tobacco-containing segment can be sufficiently reduced, and the tobacco sheet filled in the tobacco-containing segment contributes to the generation of aerosol.

Fig. 1 shows an example of the non-combustion heating type flavor aspirator according to the present embodiment. The non-combustion heating type flavor aspirator 1 shown in fig. 1 includes: a tobacco-containing segment 2 filled with a tobacco sheet or the like of the present embodiment, a cylindrical cooling segment 3 having perforations 8 on the circumference, a central hole segment 4, and a filter segment 5. The non-combustion heating type flavor aspirator of the present embodiment may have other sections in addition to the tobacco-containing section, the cooling section, the center hole section, and the filter section.

The non-combustion heating type flavor pump of the present embodimentThe length of the device in the axial direction is not particularly limited, but is preferably 40mm to 90mm, more preferably 50mm to 75mm, and still more preferably 50mm to 60 mm. The circumferential length of the non-combustion heating type flavor aspirator is preferably 16mm to 25mm, more preferably 20mm to 24mm, and even more preferably 21mm to 23 mm. Examples of the means include a tobacco-containing segment having a length of 20mm, a cooling segment having a length of 20mm, a central hole segment having a length of 8mm, and a filter segment having a length of 7 mm. The length of the filter segment may be selected in a range of 4mm to 10 mm. In addition, the ventilation resistance of the filter segments at this time may be 15mmH on average per segment ₂ O/seg above and 60mmH ₂ O/seg is selected in the following manner. The length of each of these segments may be appropriately changed according to manufacturing flexibility, required quality, and the like. Further, even if only the filter segment is disposed downstream of the cooling segment without using the center hole segment, the filter segment can function as a non-combustion heating type flavor aspirator.

(tobacco-containing section)

The tobacco-containing segment 2 is filled with a roll paper (hereinafter also referred to as a wrapping material) with a tobacco sheet or the like according to the present embodiment. The method of filling the roll paper (hereinafter also referred to as a wrapping material) with the tobacco sheet or the like is not particularly limited, and for example, the tobacco sheet or the like may be wrapped with the wrapping material or the tobacco sheet or the like may be filled with a tubular wrapping material. When the shape of the tobacco sheet has a longitudinal direction as in the case of a rectangular shape, the tobacco sheet and the like may be filled so that the longitudinal direction is not a specific direction in the packaging material, or may be aligned so that the longitudinal direction is the axial direction of the tobacco-containing segment 2 or a direction perpendicular to the axial direction.

(Cooling section)

As shown in fig. 1, the cooling section 3 is constituted by a tubular member 7. The tubular member 7 may be, for example, a paper tube formed by processing thick paper into a cylindrical shape.

The tubular member 7 and a mouthpiece backing paper 12 described later are provided with perforations 8 penetrating through both. By the presence of the perforations 8, external air is introduced into the cooling section 3 during suction. As a result, the aerosol-gasifying component produced by heating the tobacco-containing section 2 is brought into contact with the external atmosphere, and the temperature thereof is reduced, so that liquefaction occurs to form an aerosol. The diameter (diameter length) of the through hole 8 is not particularly limited, and may be, for example, 0.5mm or more and 1.5mm or less. The number of the perforations 8 is not particularly limited, and may be 1 or 2 or more. For example, a plurality of perforations 8 may be provided on the circumference of the cooling section 3.

The amount of external air introduced from the through holes 8 is preferably 85% by volume or less, more preferably 80% by volume or less, relative to the volume of the total air sucked by the user. By setting the ratio of the amount of the external air to 85% by volume or less, the reduction in flavor due to dilution with the external air can be sufficiently suppressed. In other words, this is also referred to as a ventilation ratio. The lower limit of the range of the ventilation ratio is preferably 55% by volume or more, more preferably 60% by volume or more, from the viewpoint of cooling performance.

In addition, the cooling section may be a section comprising a sheet of suitably constructed material after creasing, pleating, or folding. The cross-sectional profile of such elements sometimes shows randomly oriented channels. Additionally, the cooling section may comprise bundles of longitudinally extending tubes. Such a cooling section may be formed, for example, by a roll of paper being gathered, pleated, or folded sheet material.

The length of the cooling section in the axial direction may be, for example, 7mm or more and 28mm or less, and may be, for example, 18mm. In addition, the cooling section may have a substantially circular axial cross-sectional shape, and may have a diameter of, for example, 5mm or more and 10mm or less, and may have a diameter of, for example, about 7mm.

(Central hole section)

The center hole section is composed of a filling layer having 1 or more hollow portions and an inner rod packing material (inner roll paper) that covers the filling layer. For example, as shown in fig. 1, the center hole section 4 is constituted by a second filling layer 9 having a hollow portion and a second inner rod packing material 10 that covers the second filling layer 9. The central hole section 4 has a function of improving the strength of the mouthpiece section 6. The second filler layer 9 may be, for example, a rod having an inner diameter of 1.0mm or more and 5.0mm or less, which is obtained by filling cellulose acetate fibers at a high density, adding 6 mass% or more and 20 mass% or less of a plasticizer containing triacetin to the mass of cellulose acetate, and curing the plasticizer. The second filler layer 9 has a high fiber packing density, and therefore, air and aerosol flow only through the hollow portion at the time of suction, and substantially do not flow into the second filler layer 9. Since the second filling layer 9 inside the central hole section 4 is a fiber filling layer, the feeling of touch from the outside in use is less likely to be uncomfortable for the user. It should be noted that the central hole section 4 may not have the second inner rod packing material 10 but may be maintained in its shape by thermoforming.

(Filter section)

The constitution of the filter segment 5 is not particularly limited, and may be constituted by a single filler layer or a plurality of filler layers. The outside of the filling layer may be wrapped with one or more rolls of paper. The average ventilation resistance per section of the filter section 5 may be appropriately changed according to the amount of filler, material, etc. filled in the filter section 5. For example, in the case where the filler is cellulose acetate fiber, if the amount of cellulose acetate fiber filled in the filter segment 5 is increased, the ventilation resistance is increased. In the case where the filler is cellulose acetate fiber, the cellulose acetate fiber may have a packing density of 0.13 to 0.18g/cm ³ . The air flow resistance was measured by an air flow resistance measuring instrument (trade name: manufactured by SODIMAX, SODIM).

The length of the circumference of the filter segment 5 is not particularly limited, but is preferably 16 to 25mm, more preferably 20 to 24mm, and even more preferably 21 to 23mm. The axial length of the filter segment 5 may be selected to be 4 to 10mm, and the ventilation resistance may be 15 to 60mmH ₂ O/seg mode selection. The axial length of the filter segments 5 is preferably 5 to 9mm, more preferably 6 to 8mm. The shape of the cross section of the filter segment 5 is not particularly limited, and may be, for example, circular, elliptical, polygonal, or the like. In addition, destructive capsules containing flavours, flavourant beads, flavourants may be added directly to the filter segment 5.

As shown in fig. 1, the central hole section 4 and the filter section 5 may be connected by a plug wrap (outer wrap) 11. The outer rod packing material 11 may be, for example, cylindrical paper. In addition, the tobacco-containing section 2, the cooling section 3, and the joined central hole section 4 and filter section 5 may be joined by a tipping paper 12. The connection may be made by, for example, applying a slurry such as a vinyl acetate-based slurry to the inner side of the tipping paper 12, and winding the resulting material in the 3 sections. It should be noted that the sections may be connected together by separating a plurality of interleaving papers a plurality of times.

[ non-Combustion heating type fragrance suction System ]

The non-combustion heating type flavor-absorbing system of the present embodiment is provided with the non-combustion heating type flavor-absorbing device of the present embodiment, and a heating device for heating the tobacco-containing section of the non-combustion heating type flavor-absorbing device. The non-combustion heating type flavor-absorbing system of the present embodiment may have other configurations in addition to the non-combustion heating type flavor-absorbing device of the present embodiment and the heating device described above.

Fig. 2 shows an example of the non-combustion heating type fragrance pumping system according to the present embodiment. The non-combustion heating type flavor suction system shown in fig. 2 includes the non-combustion heating type flavor suction device 1 of the present embodiment, and a heating device 13 for heating the tobacco-containing section of the non-combustion heating type flavor suction device 1 from the outside.

Fig. 2 (a) shows a state before the non-combustion heating type flavor aspirator 1 is inserted into the heating device 13, and fig. 2 (b) shows a state in which the non-combustion heating type flavor aspirator 1 is inserted into the heating device 13 to be heated. The heating device 13 shown in fig. 2 includes a body 14, a heater 15, a metal pipe 16, a battery unit 17, and a control unit 18. The main body 14 has a cylindrical recess 19, and the heater 15 and the metal pipe 16 are disposed on the inner side surface of the recess 19 at positions corresponding to the tobacco-containing sections of the non-combustion heating type flavor aspirator 1 inserted into the recess 19. The heater 15 may be a resistance-based heater, and the heater 15 may be heated by supplying electric power from the battery unit 17 in response to an instruction from the control unit 18 that performs temperature control. The heat emitted by the heater 15 is conducted through the metal tube 16 of high thermal conductivity to the tobacco-containing section of the non-combustion heated flavor aspirator 1.

Since the illustration is schematically shown in fig. 2 (b), a gap is present between the outer periphery of the non-combustion heating type flavor aspirator 1 and the inner periphery of the metal tube 16, and in practice, it is preferable that a gap is not present between the outer periphery of the non-combustion heating type flavor aspirator 1 and the inner periphery of the metal tube 16 for the purpose of efficiently conducting heat. The heating device 13 may heat the tobacco-containing section of the non-combustion heating type flavor aspirator 1 from the outside, or may heat the tobacco-containing section from the inside.

The heating temperature by the heating device is not particularly limited, but is preferably 400 ℃ or lower, more preferably 150 ℃ or higher and 400 ℃ or lower, and still more preferably 200 ℃ or higher and 350 ℃ or lower. The heating temperature means the temperature of the heater of the heating device.

In addition, for a non-combustion heating type flavor aspirator, improvement in the delivery of flavor components (smoke) is demanded. The following describes a non-combustion heating type flavor aspirator with improved flavor component (smoke) delivery.

[ mode 1 ]

The present embodiment includes the following [1a ] to [19a ]. According to the present embodiment, it is possible to provide a non-combustion heating type flavor aspirator and a non-combustion heating type flavor aspiration system in which balance of components supplied to a user is uniform from the first half stage to the second half stage of the entire use.

[1a] A non-combustion heated flavor aspirator comprising a tobacco-containing section and a mouthpiece section, wherein,

the tobacco-containing segment comprises: a first section containing an aerosol-generating agent, and a second section containing a tobacco sheet for a non-combustion heating type flavor inhaler of the present embodiment,

the mouthpiece section includes a cooling section and a filter section.

[2a] The non-combustion heating type flavor aspirator according to [1a ], wherein the aerosol generating agent is at least one selected from the group consisting of glycerin, propylene glycol and 1, 3-butylene glycol.

[3a] The non-combustion heated flavor aspirator of [1a ] or [2a ], wherein the first section further comprises plant fibers.

[4a] The non-combustion heating type flavor aspirator according to [3a ], wherein the first section comprises a tubular packaging material and a nonwoven fabric composed of the plant fibers filled in the packaging material, and the nonwoven fabric comprises the aerosol generating agent.

[5a] The non-combustion heating type flavor aspirator according to [4a ], wherein the plurality of nonwoven fabrics in the form of sheets are stacked and filled in the packaging material in a state of being folded in an S-shape.

[6a] The non-combustion heating type flavor aspirator according to [4a ] or [5a ], wherein the packaging material is a metal foil, a sheet for bonding a metal foil to paper, a polymer film, a sheet for bonding a polymer film to paper, or a paper coated with a coating agent selected from modified cellulose, modified starch, polyvinyl alcohol and vinyl acetate on the surface.

[7a] The non-combustion heating type flavor aspirator according to any one of [4a ] to [6a ], wherein the packaging material is a laminate of a paper layer constituting an outer surface and a liquid impermeable layer constituting an inner surface,

The liquid-impermeable layer is formed of a layer selected from the group consisting of a metal foil, a polymer film, and a coating agent selected from the group consisting of modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate,

the package material is formed in a tubular shape by adhering one end portion and the other end portion of the package material to each other through the liquid impermeable layer of the package material.

[8a] The non-combustion heating type flavor aspirator according to any one of [1a ] to [7a ], wherein the first section further comprises a tackifier.

[9a] The non-combustion heating type flavor aspirator according to any one of [1a ] to [8a ], wherein the tobacco sheet contains a flavor development auxiliary agent.

[10a] The non-combustion heating type flavor aspirator according to any one of [1a ] to [9a ], wherein the tobacco sheet contains lipid.

[11a] The non-combustion heating type flavor aspirator according to any one of [1a ] to [10a ], wherein the second section is disposed on the mouthpiece section side with respect to the first section.

[12a] The non-combustion heating type flavor aspirator according to any one of [1a ] to [10a ], wherein the columnar first section is provided along an axial extension of the tobacco-containing section, and the second section is disposed on an outer periphery of the first section.

[13a] The non-combustion heating type flavor aspirator according to any one of [1a ] to [10a ], wherein the columnar second section is provided along an axial extension of the tobacco-containing section, and the first section is disposed on an outer periphery of the second section.

[14a] The non-combustion heating type flavor aspirator according to any one of [1a ] to [11a ], wherein the first section and the second section are connected together by being wrapped with an outer package material containing a heat conductive material.

[15a] A non-combustion heating type flavor-absorbing system comprising the non-combustion heating type flavor-absorbing device of any one of [1a ] to [14a ], and a heating device comprising a heater for heating the tobacco-containing section of the non-combustion heating type flavor-absorbing device.

[16a] The non-combustion heating type fragrance extraction system according to [15a ], wherein the heater includes a first peripheral heating heater that heats the entire side surface of the columnar first section and heats a part of the side surface of the columnar second section or does not heat the second section.

[17a] The non-combustion heating type fragrance extraction system according to [15a ], wherein the heater includes a second peripheral heating heater which heats the entire side surface and the entire bottom surface of the columnar first section, and heats at least a part of the side surface of the columnar second section or does not heat the second section.

[18a] The non-combustion heating type flavor pumping system according to any one of [15a ] to [17a ], wherein the heater includes an internal heating heater that heats the inside of the columnar first section in the entire axial direction and heats the inside of the columnar second section in a part of the axial direction or does not heat the second section.

[19a] The non-combustion heating type flavor pumping system according to any one of [15a ] to [18a ], wherein a heating temperature by the heater is 200 to 350 ℃.

[ non-Combustion heating type fragrance aspirator ]

In the non-combustion heating type flavor aspirator of the present embodiment, the tobacco-containing segment includes: a first section containing an aerosol-generating agent, and a second section containing the non-combustion heating type flavor-smoking tobacco sheet of the present embodiment. Therefore, when the tobacco-containing section is heated, the heating temperature of the first section including the aerosol generating agent having a high boiling point (low vapor pressure) can be increased, and the heating temperature of the second section including the flavor component such as the tobacco component having a low boiling point (high vapor pressure) can be reduced. This can suppress volatilization of the flavor component having a low boiling point (high vapor pressure) in the first half of the use, and can maintain volatilization and supply of the flavor component in the second half of the use. In addition, the volatilization of the aerosol generating agent having a high boiling point (low vapor pressure) in the first half stage can be promoted. Therefore, the non-combustion heating type flavor aspirator according to the present embodiment can make the balance of the components supplied to the user uniform throughout the first half to the second half of the use.

Fig. 3 (a) shows an example of the non-combustion heating type flavor aspirator according to the present embodiment. The non-combustion heating type flavor aspirator 101 shown in fig. 3 (a) includes a tobacco-containing section 102 and a mouthpiece section 103. The tobacco-containing section 102 includes a first section 104 containing an aerosol-generating agent, and a second section 105 containing the non-combustion heating type flavor-absorbing tobacco sheet of the present embodiment, which is disposed downstream of the first section 104. The mouthpiece section 103 includes a cooling section 106, a center hole section 107, and a filter section 108 in this order from the upstream side. In the present embodiment, the mouthpiece section 103 may include a center hole section 107. In use, at least a portion of the tobacco-containing segment 102 (principally the first segment 104) is heated, the aerosol-generating agent of the first segment 104 and the flavour components of the second segment 105 are vaporised, and they are transferred to the mouthpiece segment 103 by suction, and are drawn through the end of the filter segment 108.

(tobacco-containing section)

The tobacco-containing segment of this embodiment comprises: a first section containing an aerosol-generating agent, and a second section containing the non-combustion heating type flavor-smoking tobacco sheet of the present embodiment. The tobacco-containing segment of the present embodiment may comprise a plurality of the first segments and/or the second segments.

< first section >)

The first section of this embodiment contains an aerosol generator. Examples of the aerosol generating agent include glycerin, propylene glycol, and 1, 3-butanediol. One kind of these may be used, or two or more kinds may be used in combination.

From the viewpoint of sufficiently retaining the aerosol generating agent, the first section preferably further comprises plant fibers. Examples of the plant fiber include wood pulp, hemp, corn, bamboo, cotton, tobacco, and the like. One kind of these may be used, or two or more kinds may be used in combination. The plant fiber can be plant fiber sheet formed by collecting plant fibers. From the viewpoint of stably retaining the aerosol-generating agent in the plant fiber sheet and securing the necessary aerosol-generating amount, the plant fiber preferably contains 10 to 50 mass%, more preferably 12 to 30 mass%, of the aerosol-generating agent.

Preferably, the first section includes a tubular packaging material and a nonwoven fabric made of plant fibers filled in the packaging material, and the nonwoven fabric includes an aerosol generating agent. In the first section, the aerosol generating agent can be sufficiently held by the nonwoven fabric. The thickness of the nonwoven fabric is not particularly limited, and may be, for example, 1 to 2mm. The nonwoven fabric preferably contains 10 to 50% by mass of the aerosol generator, and more preferably 12 to 30% by mass.

Preferably, the first section includes a cylindrical packaging material and paper made of plant fibers filled in the packaging material, and the paper includes an aerosol generator. In the first section described above, the aerosol generating agent can be sufficiently held by the paper. The thickness of the paper is not particularly limited and may be, for example, 50 to 200. Mu.m. The paper preferably contains 10 to 50% by mass of the aerosol generator, more preferably 12 to 30% by mass.

In the first section, for example, as shown in fig. 4 (a), it is preferable that a plurality of sheet-shaped nonwoven fabrics 121 are stacked and filled in the packaging material in a state of being folded in an S-shape. In such a first section, the nonwoven fabrics are folded and filled, and therefore, the gaps between the nonwoven fabrics cannot be generally recognized, but when a heater for internal heating such as a blade shape or a rod shape is inserted, the heater enters the gaps between the nonwoven fabrics, and the nonwoven fabrics themselves are not damaged. Therefore, when the heater is used for heating, the non-woven fabric and the like can be prevented from being burnt and crisp and remaining in the equipment as waste.

In the first section, for example, as shown in fig. 4 (b), it is preferable that the sheet-like paper 131 is filled in the package material in a gathered state. In such a first section, when a heater for internal heating, such as a blade, a rod, or the like, is inserted, the heater enters a gap between sheets, and the sheets themselves are not damaged. Therefore, when the heater is used for heating, the paper and the like can be prevented from being burnt and fragile and remaining in the equipment as waste. The nonwoven fabric may be pleated instead of being folded into an S-shape. When the pleats are filled, a plurality of passages through which air is easily permeated in the flow direction of the air can be formed, and therefore, the ventilation resistance of the first section can be reduced.

In addition, from the viewpoint of suppressing the exudation of the aerosol generating agent, the packaging material is preferably used with reduced liquid permeability. Examples of the packaging material which is hardly permeable to liquid include: a metal foil, a sheet for bonding a metal foil to paper, a polymer film, a sheet for bonding a polymer film to paper, a paper coated with a coating agent for blocking liquid permeation selected from modified cellulose, modified starch, polyvinyl alcohol, vinyl acetate, and the like on the surface, and the like. From the viewpoint of preventing liquid permeation and the viewpoint of making the temperature distribution in the longitudinal direction of the first section uniform, a packaging material containing a metal foil excellent in heat conductivity is preferable. Further, by disposing the metal foil on the inner side and disposing the paper on the outer side after the rod-wrapping as the bonding sheet of the metal foil and paper, the appearance can be made similar to that of a usual combustion type flavor aspirator (cigarette). When the amount of the aerosol generating agent contained in the first section is small, the use of paper coated with a liquid-permeation-preventing coating agent selected from modified cellulose, modified starch, polyvinyl alcohol, vinyl acetate, and the like on the surface is preferable because the stick hardness, elasticity, and touch feeling of the first section can be made similar to those of a usual combustion-type flavor aspirator (cigarette).

In the case where the packaging material is a laminate of a paper layer constituting an outer surface and a liquid-impermeable layer constituting an inner surface, the liquid-impermeable layer may be formed of a layer selected from a metal foil, a polymer film, and a coating agent selected from modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate. Here, it is preferable that the one end portion and the other end portion of the packaging material are bonded to each other through the liquid impermeable layer of the packaging material, and the packaging material is formed in a tubular shape. For example, as shown in fig. 5, a nonwoven fabric 122 containing an aerosol generating agent is filled in a tubular packaging material which is a laminate of a paper layer 124 constituting an outer surface and a liquid impermeable layer 123 constituting an inner surface. Here, at one end portion and the other end portion of the packaging material, the packaging material is formed in a tubular shape by being bonded to each other (bonding portion 125) through the liquid impermeable layer 123. In this way, by bonding the liquid impermeable layers to each other, the exudation of the aerosol generating agent to the outside can be further suppressed.

From the viewpoint of improving the retention of the aerosol generating agent, it is preferable that the first section further contains a tackifier. For example, an aerosol generating agent such as glycerin or propylene glycol is liquid at ordinary temperature, and if it is contained in a large amount in a nonwoven fabric or the like, it may flow out from the nonwoven fabric. However, by further including a tackifier in the nonwoven fabric or the like, outflow of the aerosol generating agent to the outside can be suppressed, and the operability can be improved. Examples of the tackifier include: gellan gum, tamarind gum, agar, carrageenan, pectin, alginate, other tackifying polysaccharides, collagen, gelatin, other proteins, HPC, CMC, HPMC, other modified celluloses, and the like. One kind of these tackifiers may be used, or two or more kinds may be used in combination. When the first segment contains a tackifier, the content of the tackifier varies depending on the type of tackifier used, and is preferably 0.1 to 5.0 parts by mass relative to 100 parts by mass of the aerosol generating agent. For example, when glycerin as an aerosol generating agent, natural gellan gum as a thickener, and water as a diluent are used, the natural gellan gum is 0.3 to 0.7 parts by mass and the water is 23.5 parts by mass relative to 100 parts by mass of glycerin, whereby an aerosol generating agent having an excellent viscosity at the time of retention of 2000 to 26000 (mpa·sat 25 ℃) can be obtained. The aerosol generating agent is gel-like in the indoor temperature range, and is heated to about 60-70 ℃ to become liquid. In this way, when the first section is manufactured, the aerosol generating agent is heated and applied in a liquid state to the nonwoven fabric or paper, so that the aerosol generating agent can be easily contained in the first section, and the aerosol generating agent becomes a gel state after the temperature is lowered to about room temperature, and can be stably held.

The first section may contain, for example, a tobacco component, a flavor component (external flavor) other than the tobacco component, and the like, in addition to the aerosol generator, the plant fiber (nonwoven fabric or paper), the packaging material, and the thickener. Examples of the flavor component other than the tobacco component include L-menthol, licorice extract, reducing sugar, and cocoa extract. The first section may not include a fragrance component.

The length of the first section in the axial direction is not particularly limited, and may be, for example, 5 to 15mm. The length of the circumference of the first segment is not particularly limited, and may be, for example, 15 to 24mm.

< second section >)

The second section of the present embodiment includes the tobacco sheet for the non-combustion heating type flavor inhaler of the present embodiment. That is, the second section contains flavor components such as tobacco components. The second section may include, for example, a tubular wrapping material and the non-combustion heating type flavor-smoking tobacco sheet of the present embodiment filled in the wrapping material.

The tobacco sheet may contain a flavor-developing aid. The flavour development aid may comprise at least 1 of alkali metal and/or alkaline earth metal carbonates, bicarbonates, oxides and hydroxides. Preferably the flavour development aid is potassium carbonate or sodium carbonate. Since most of the tobacco components contained in the tobacco sheet are amines, volatilization of the tobacco components can be ensured even at a relatively low temperature by incorporating the flavor-imparting auxiliary agent into the tobacco sheet, and the tobacco flavor can be sufficiently exhibited. The amount of the flavor-imparting auxiliary agent contained in the tobacco sheet is preferably 5 to 20 parts by mass per 100 parts by mass of the tobacco sheet. The pH of the tobacco sheet can be adjusted to 7 to 11 by adding the flavor development auxiliary agent. The pH may be measured by a pH meter (for example, IQ240 manufactured by IQ Scientific InstrumentsInc). For example, 2 to 10g of distilled water was added to 10 times the mass ratio of the tobacco sheet, the mixture of water and tobacco sheet was shaken at 200rpm for 10 minutes at room temperature (e.g., 22 ℃) and left to stand for 5 minutes, and then the pH of the obtained extract was measured by a pH meter.

In addition, the tobacco sheet may contain a lipid. Examples of the lipid include acyl glycerols such as monoglycerides, diglycerides and triglycerides, and fatty acids. One kind of these may be used, or two or more kinds may be used in combination. By including the lipid in the tobacco sheet, excessive volatilization of the flavor component such as nicotine can be suppressed by utilizing interaction between the flavor component such as nicotine included in the tobacco sheet and the lipid. In addition, by including a lipid in the tobacco sheet, a trace amount of lipid may be included in the aerosol generated during use. This can suppress re-evaporation of the flavor component after the vapor of the flavor component and the aerosol generator is cooled to form an aerosol. The amount of the lipid contained in the tobacco sheet is preferably 2 to 15 parts by mass relative to 100 parts by mass of the tobacco sheet.

The second section may be, for example, a random array of tobacco sheet filaments from which the tobacco sheet is cutOr a section aligned in orientation and filled in the tubular packaging material, or a section gathered without cutting the tobacco sheet and filled in the tubular packaging material, or the like. Hereinafter, the tobacco sheet filaments are also referred to as cut filler. As the packaging material, for example, a roll paper is formed into a tubular shape. The content of nicotine in the filler filled in the packaging material is preferably 1.5% by mass or more, more preferably 2.0 to 4.0% by mass. In addition, the filling density of the cut tobacco filled in the packaging material is set to be 0.2-0.7 mg/mm ³ It is preferable to ensure the generation of a sufficient flavor component at the time of use and to ensure the sufficient bar hardness of the second segment.

The size and preparation method of the cut tobacco are not particularly limited. As an example, the tobacco sheet is cut into cut tobacco having a width of 0.5mm or more and 2.0mm or less and a length of 3mm or more and 10mm or less. Cut tobacco of such a size is preferable from the viewpoint of filling with the filler. As another example, there is a tobacco cut sheet (strand-type tobacco cut filler) which is cut into tobacco pieces having a width of 0.5mm or more and 2.0mm or less and a length longer than the tobacco cut filler, preferably a length equivalent to that of the filler. From the viewpoint of ease of molding, a tobacco sheet is preferably used as the strand-type tobacco shred.

The moisture content of the tobacco shred may be 10 mass% or more and 15 mass% or less, and preferably 11 mass% or more and 13 mass% or less, relative to the total mass of the tobacco shred. When the moisture content is such, the occurrence of packaging stains (wrapping stain) after the cut tobacco is filled with the filler can be suppressed.

The packing density of the tobacco sheets in the interior of the packaging material can be appropriately set according to the form of the tobacco sheets to be packed, the intended flavor, the ventilation resistance, and the like. For example, the above-mentioned packing density is 0.2mg/mm ³ Above and 0.7mg/mm ³ In the following manner. The above-mentioned packing density can be calculated from the ratio of the mass of the tobacco sheet to the internal volume of the rod formed from the wrapper.

The length of the second section in the axial direction is not particularly limited, and may be, for example, 5 to 15mm. The length of the circumference of the second section is not particularly limited, and may be, for example, 15 to 24mm.

< construction of tobacco-containing segment >

The configuration of the tobacco-containing segment is not particularly limited as long as the tobacco-containing segment includes the first segment and the second segment, and the second segment is preferably disposed on the mouthpiece segment side (downstream side) with respect to the first segment. For example, as shown in fig. 3 (a), the columnar second section 105 may be arranged on the mouthpiece section 103 side (downstream side) with respect to the columnar first section 104. In fig. 3 (a), the first section 104 may be configured such that a nonwoven fabric 109 containing an aerosol generating agent and made of plant fibers is filled in the first packaging material 110. In addition, the second section 5 may be configured such that the tobacco sheet 111 is filled in the second wrapping material 112. Although the ease of volatilization of each component contained in the first section and the second section is mainly determined by the heating temperature, volatilization of the above-mentioned components can be promoted by the presence of a substance having high compatibility with the component to be volatilized in the periphery. In the above configuration, the aerosol generating agent volatilized in the first section is cooled and liquefied (aerosolized) at the moment when it flows into the second section at the time of suction, and the flavor component (e.g., nicotine) existing in the second section is dissolved in the aerosol and is transported to the outside of the tobacco-containing section, whereby the concentration of the flavor component in the second section is reduced and volatilization is promoted. Thereby, even if the temperature of the second section is not so increased, the release efficiency can be ensured. Therefore, the flavor component can be released from the second section every time the pumping operation is performed at a low temperature, and as a result, the exhaustion of the flavor component can be suppressed. The ratio (a/B) of the length (a) of the first section to the length (B) of the second section in the axial direction of the tobacco-containing section is preferably 0.3 to 3.0, more preferably 0.5 to 2.0.

The first section and the second section may be connected by being wrapped with an overwrap material. Here, as the outer packaging material, a usual paper packaging material, preferably an outer packaging material containing a heat conductive material, can be used. By wrapping the first and second sections with the outer material containing the heat conductive material, for example, even when only the side surface of the first section is heated with the outer peripheral heater, heat of the heater can be transferred to the second section uniformly and efficiently. Examples of the heat conductive material include a metal foil having a higher heat conductivity than paper. Particularly, a metal foil having a thermal conductivity of 10W/m·k or more, which is represented by an aluminum foil or a stainless steel foil, is inexpensive, is not easily rusted, and has high workability (a thickness of several μm to 10 μm, and has high tensile strength and is easily bendable) is preferably used. For reference, the thermal conductivity of a representative metal foil (alloy foil) is shown in table 1.

TABLE 1

The columnar first section may be provided so as to extend in the axial direction of the tobacco-containing section, and the second section may be disposed on the outer periphery of the first section. For example, as shown in fig. 6 (a), the second section 105 may be arranged on the outer periphery of the columnar first section 104 (side surface). In such a configuration, the heating can be performed by inserting an internal heater such as a blade heater into the first section. In the above-described configuration, it is preferable that the first section to be heated at a higher temperature is formed in a thin coil shape, and therefore, the first section can be efficiently heated at a higher temperature by the internal heater. Further, by adjusting the filling density of each filler, the air flow easiness in the longitudinal direction of the cylindrical rod during suction may be set to be easier in the second section than in the first section, so that the aerosol generating agent mainly generated from the first section does not move directly in the direction of the mouthpiece, and the aerosol generating agent mainly generated from the first section moves to the second section and moves toward the mouthpiece portion together with the flavor component. In this case, the interface between the first section and the second section is preferably made of a gas-or aerosol-permeable packaging material, for example, paper having a ventilation degree of 1000 to 30000CORESTA Unit. In addition, even when no member such as a packaging material is present at the interface, it is preferable from the viewpoint of promoting movement of the gas component from the first section to the second section.

The columnar second section may be provided so as to extend in the axial direction of the tobacco-containing section, and the first section may be disposed on the outer periphery of the second section. For example, as shown in fig. 6 (b), the first section 104 may be arranged on the outer periphery of the columnar second section 105 (side surface). In such a configuration, the side surface of the first section may be heated by the outer peripheral heater. In the above-described configuration, it is preferable that the first section to be heated at a higher temperature can be efficiently heated at a high temperature by the external heater. Further, by adjusting the filling density of each filler, the air flow easiness in the longitudinal direction of the cylindrical rod during suction may be set to be easier in the second section than in the first section, so that the aerosol generating agent mainly generated from the first section does not move directly in the direction of the mouthpiece, and the aerosol generating agent mainly generated from the first section moves to the second section and moves toward the mouthpiece portion together with the flavor component. In this case, the interface between the first section and the second section is preferably made of a gas-or aerosol-permeable packaging material, for example, paper having a ventilation degree of 1000 to 30000CORESTA Unit. In addition, even when no member such as a packaging material is present at the interface, it is preferable from the viewpoint of promoting movement of the gas component from the first section to the second section.

The length of the tobacco-containing segment in the axial direction is not particularly limited, and may be, for example, 12 to 50mm. The length of the circumference of the tobacco-containing segment is not particularly limited, and may be, for example, 15 to 24mm.

(cigarette holder section)

The mouthpiece section of the present embodiment includes a cooling section and a filter section. The mouthpiece section of the present embodiment may comprise a plurality of cooling sections and/or filter sections. The mouthpiece section of the present embodiment may include a section other than the cooling section and the filter section. Examples of the other section include a central hole section.

< Cooling section >)

As shown in fig. 3 (a), the cooling section 106 is constituted by a tubular member 113. The tubular member 113 may be a paper tube formed by processing thick paper into a cylindrical shape, for example.

The cooling section is located downstream of the tobacco-containing section. The function required for the cooling section is to reduce as much as possible the reduction of vapor of the flavor component and the aerosol generator generated by the tobacco-containing section during use by filtration and adsorption, and to cool and liquefy (aerosolize) the vapor of the flavor component and the aerosol generator. For example, at the time of suction, the difference between the section internal temperature of the cooling section inlet and the section internal temperature of the cooling section outlet sometimes reaches 20 ℃ or more. When the high-temperature vapor component of the flavor component and the aerosol generator passes through the cellulose acetate fiber filling section used as the filter member of the usual combustion type flavor aspirator, the temperature difference between the section inlet and the section outlet may be 20 ℃ or higher, but when the vapor of the flavor component and the aerosol generator passes through the fiber filling layer, the amount of the vapor is considerably reduced by filtration and adsorption. The fiber-filled layer is not referred to herein as a cooling section.

As one embodiment of the cooling section, a hollow pipe may be obtained by processing 1 sheet or a plurality of sheets of paper laminated together into a cylindrical shape. The material constituting the tube may be a sheet-like product obtained by corrugating cellulose acetate fibers, or a plastic film such as polyolefin or polyester, in addition to the paper. In order to increase the cooling effect by bringing the room-temperature outside air into contact with the high-temperature vapor, it is preferable that holes for introducing the outside air are provided around the pipe. The cooling effect can be increased by providing the inner surface of the tube with a polymer coating such as polyvinyl alcohol or a coating of polysaccharides such as pectin, and utilizing the heat of solution associated with the heat absorption and phase change of the coating. The ventilation resistance of the cylindrical cooling section was 0mmH ₂ O。

As another aspect of the cooling section, it is also preferable that the cooling sheet member is filled in the tube processed into a cylindrical shape. At this time, by providing one or more air flow channels along the flow direction, cooling by the cooling fin can be performed, and component removal at the time of passage of the low-level section can be achieved. Filling theThe ventilation resistance of the cooling section in the case of cooling sheets is preferably 0 to 30mmH ₂ O. The resistance to air flow (RTD) is the pressure required to push air through the entire length of the object in a test at 22℃and a flow rate of 17.5 ml/sec (760 Torr) at 101 kPa. RTDs are generally referred to as mmH ₂ O units are determined in accordance with ISO 6565:2011. In this aspect of filling the cooling fin, a hole for introducing outside air may be provided in the pipe member.

The total surface area of the cooling sheet member may be 300mm ² Above/mm and 1000mm ² And/mm or less. The surface area is the surface area per unit length (mm) of the ventilation direction of the cooling sheet member. The total surface area of the cooling sheet member is preferably 400mm ² Preferably at least 450mm ² Preferably 600mm or more ² Preferably less than or equal to/mm, more preferably 550mm ² And/mm or less.

From the viewpoint of the cooling function, it is preferable that the sheet member for cooling has a large surface area. From the viewpoint of reducing the amount of the flavor component and the aerosol generating agent to be removed by filtration and adsorption, the ventilation resistance of the cooling section filled with the cooling sheet member is preferably low. Therefore, in a preferred embodiment, the cooling sheet is pleated to form a channel along the flow direction, and then may be formed by pleating, and folding the thin sheet of material.

In some embodiments, the thickness of the constituent material of the cooling sheet member is 5 μm or more and 500 μm or less, and for example, 10 μm or more and 250 μm or less.

The material of the sheet member for cooling may be a sheet material such as a metal foil, a polymer sheet, or a paper sheet having low air permeability. In one embodiment, the cooling section may comprise a sheet material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil.

In addition, from the viewpoint of reducing environmental load, paper is also preferably used as a material of the sheet member for cooling. The paper used for the cooling sheet member preferably has a weight per unit area of 30 to 100g/m ² The thickness is 20-100 μm. From the viewpoint of reducing removal of flavor components and aerosol generator components in the cooling section, the paper as a material for the cooling sheet is preferably low in air permeability, and the air permeability is preferably 10CORESTA Unit or less. By providing the paper as the cooling sheet member with a polymer coating such as polyvinyl alcohol or a coating of polysaccharides such as pectin, the cooling effect can be increased by utilizing the heat of solution associated with the heat absorption and phase change of the coating.

In fig. 3 (a), a tubular member 113 and a mouthpiece backing paper 120 described later are provided with perforations 114 penetrating both. By the presence of the perforations 114, outside air is introduced into the cooling section 106 during suction. As a result, the aerosol-gasifying component produced by heating the tobacco-containing section 102 is brought into contact with the outside air, and the temperature thereof is reduced, so that the aerosol is formed by liquefaction. The diameter (diameter length) of the through hole 114 is not particularly limited, and may be, for example, 0.5mm or more and 1.5mm or less. The number of the perforations 114 is not particularly limited, and may be 1 or 2 or more. For example, a plurality of perforations 114 may be provided on the circumference of the cooling section 106.

The amount of external air introduced from the through holes 114 is preferably 85% by volume or less, more preferably 80% by volume or less, relative to the total volume of air sucked by the user. By setting the ratio of the amount of the external air to 85% by volume or less, the reduction in flavor due to dilution with the external air can be sufficiently suppressed. In other words, this may be referred to as a ventilation ratio. The lower limit of the range of the ventilation ratio is preferably 55% by volume or more, more preferably 60% by volume or more, from the viewpoint of cooling performance.

In some embodiments, the aerosol generated sometimes reduces in temperature by more than 10 ℃ as it is drawn by the user through the cooling section. In another embodiment, the temperature may be lowered by 15℃or more, and in another embodiment, the temperature may be lowered by 20℃or more.

The cooling section may be formed in a rod shape having a length in the axial direction of, for example, 7mm or more and 30mm or less. For example, the length of the cooling section in the axial direction may be set to 20mm.

In some embodiments, the cooling section is substantially circular in axial cross-sectional shape, with the circumference preferably being 16 to 25mm in length, more preferably 20 to 24mm, and even more preferably 21 to 23mm.

< center hole section >)

The center hole section is composed of a filling layer having one or more hollow portions, and an inner rod packing material (inner roll paper) that covers the filling layer. For example, as shown in fig. 3 (a), the center hole section 107 is composed of a second filling layer 115 having a hollow portion and a second inner rod packing material 116 that covers the second filling layer 115. The central hole section 107 has a function of improving the strength of the mouthpiece section 103. The second filler layer 115 may be, for example, a rod having an inner diameter of 1.0mm or more and 5.0mm or less, which is obtained by filling cellulose acetate fibers at a high density, adding 6 mass% or more and 20 mass% or less of a plasticizer containing triacetin to the mass of cellulose acetate, and curing the plasticizer. The second filler layer 115 has a high packing density of fibers, and therefore, air and aerosol flow only through the hollow portion and substantially not flow into the second filler layer 115 when suctioned. The second filler layer 115 inside the center hole section 107 is a fiber filler layer, and thus, the feeling of touch from the outside in use is less likely to give a sense of discomfort to the user. It should be noted that the central bore section 107 may not have the second inner rod wrapper 116, but may be maintained in shape by thermoforming.

Filter segment

The constitution of the filter segment is not particularly limited, and may be constituted by a single or a plurality of filler layers. For example, as shown in fig. 3 (a), in the filter section 108, the outside of the first filler layer 117 may be wrapped with a first inner rod wrapper 118 (inner wrap). The average ventilation resistance per section of the filter section may be appropriately changed according to the amount of filler, material, etc. filled in the filter section. For example, in the case where the filler is cellulose acetate fiber, the ventilation resistance can be increased by increasing the amount of cellulose acetate fiber filled in the filter segment. In the case where the filler is cellulose acetate fiber, the cellulose acetate fiber may have a packing density of 0.13 to 0.18g/cm ³ . In addition, at the same packing density, the cellulose acetate fibers are packedThe coarse and fine ones are preferable because they exhibit low ventilation resistance. The thickness of 1 cellulose acetate fiber is preferably 5 to 20 denier per filament. Further, from the viewpoint of high-speed production of the filter segment, 7 to 13 denier per filament is more preferable. The air flow resistance was measured by an air flow resistance measuring instrument (trade name: manufactured by SODIMAX, SODIM).

The length of the circumference of the filter segment is not particularly limited, but is preferably 16 to 25mm, more preferably 20 to 24mm, and even more preferably 21 to 23mm. The axial length of the filter tip section can be selected from 5-20 mm, and the ventilation resistance can reach 10-60 mmH ₂ O/seg mode selection. The axial length of the filter segments is preferably 5 to 9mm, more preferably 6 to 8mm. The shape of the cross section of the filter segment is not particularly limited, and may be, for example, circular, elliptical, polygonal, or the like. In addition, destructive capsules containing flavourant, flavourant beads, flavourant may be added directly to the filter segments.

As shown in fig. 3 (a), the central bore section 107 and the filter section 108 may be connected by a plug wrap (outer wrap) 119. The outer rod packing material 119 may be, for example, cylindrical paper. In addition, the tobacco containing segment 102, the cooling segment 106, and the joined central bore segment 107 and filter segment 108 may be joined by a tipping paper 120. These connections can be made by, for example, applying a slurry such as a vinyl acetate-based slurry to the inner surface of the tipping paper 120, and winding the resulting material in the above 3 sections. It should be noted that the sections may be connected together by separating a plurality of interleaving papers a plurality of times. In addition, as shown in fig. 3 (b), the first section 104 may be secured by a tipping paper 120. As shown in fig. 3 (c), the first section 104 and the second section 105 may be connected by the outer wrapper 134, and then the tobacco-containing section 102, the cooling section 106, and the connected center hole section 107 and filter section 108 may be connected by the tipping paper 120.

(constitution of non-Combustion heating type fragrance aspirator)

The axial length of the non-combustion heating type flavor aspirator according to the present embodiment is not particularly limited, but is preferably 40mm or more and 90mm or less, more preferably50mm to 75mm, more preferably 50mm to 60 mm. The circumferential length of the non-combustion heating type flavor aspirator is preferably 16mm to 25mm, more preferably 20mm to 24mm, and even more preferably 21mm to 23 mm. For example, the length of the tobacco-containing section is 20mm, the length of the cooling section is 20mm, the length of the center hole section is 8mm, and the length of the filter section is 7 mm. The length of the filter segment may be selected in a range of 4mm to 20 mm. In addition, the ventilation resistance of the filter segments at this time may be 10mmH on average per segment ₂ O/seg above and 60mmH ₂ O/seg is selected in the following manner. The length of each of these segments may be appropriately changed according to manufacturing flexibility, required quality, and the like. Further, even if only the filter segment is disposed downstream of the cooling segment without using the center hole segment, the non-combustion heating type flavor aspirator can be used.

[ non-Combustion heating type fragrance suction System ]

The non-combustion heating type flavor-absorbing system according to the present embodiment includes the non-combustion heating type flavor-absorbing device according to the present embodiment, and a heating device including a heater for heating the tobacco-containing section of the non-combustion heating type flavor-absorbing device. Since the non-combustion heating type flavor suction system according to the present embodiment includes the non-combustion heating type flavor suction device according to the present embodiment, the balance of the components supplied to the user is uniform from the first half to the second half of the entire use. The non-combustion heating type flavor-absorbing system according to the present embodiment may have a configuration other than the non-combustion heating type flavor-absorbing device according to the present embodiment.

Fig. 7 shows an example of the non-combustion heating type fragrance sucking system according to the present embodiment. The non-combustion heating type flavor suction system shown in fig. 7 includes a non-combustion heating type flavor suction device 101 of the present embodiment, and a heating device 127 for heating a tobacco-containing section of the non-combustion heating type flavor suction device 101 from the outside. Fig. 7 (a) shows a state before the non-combustion heating type flavor aspirator 101 is inserted into the heating device 127, and fig. 7 (b) shows a state in which the non-combustion heating type flavor aspirator 101 is inserted into the heating device 127 and heated. The heating device 127 shown in fig. 7 includes a body 128, a heater 129, a metal pipe 130, a battery unit 131, and a control unit 132. The body 128 has a cylindrical recess 133, and the heater 129 and the metal pipe 130 are disposed on the inner side surface of the recess 133 at positions corresponding to tobacco-containing sections (mainly, first sections) of the non-combustion heating type flavor aspirator 101 inserted into the recess 133. The heater 129 may be a resistance-based heater, and power is supplied from the battery unit 131 in accordance with an instruction from the control unit 132 that performs temperature control, so that the heater 129 is heated. The heat emitted by the heater 129 is conducted through the metal tube 130 having a high thermal conductivity to the tobacco-containing section (mainly the first section) of the non-combustion heated flavor aspirator 101.

Since the illustration is schematically shown in fig. 7 (b), a gap is formed between the outer periphery of the non-combustion heating type flavor aspirator 101 and the inner periphery of the metal tube 130, and in practice, it is preferable that a gap is not formed between the outer periphery of the non-combustion heating type flavor aspirator 101 and the inner periphery of the metal tube 130 for the purpose of efficiently conducting heat. The heating device 127 may heat the tobacco-containing section (mainly the first section) of the non-combustion heating type flavor aspirator 101 from the outside, or may heat the tobacco-containing section from the inside. When heating is performed from the inside, it is preferable to use a plate-like, blade-like, or columnar heater having rigidity without using the metal pipe 130. Examples of such a heater include ceramic heaters in which molybdenum, tungsten, or the like is applied to a ceramic substrate.

In the non-combustion heating type fragrance extraction system according to the present embodiment, the heater preferably includes a first peripheral heating heater that heats the entire side surface of the columnar first section, and heats a part of the side surface of the columnar second section or does not heat the second section. With such a configuration, the heating temperature of the first region including the aerosol generating agent having a high boiling point (low vapor pressure) can be increased, and the heating temperature of the second region including the flavor component having a low boiling point (high vapor pressure) can be reduced, so that the balance of the components supplied to the user can be made uniform throughout the first half to the second half of the use. The first outer peripheral heating heater can heat the entire side surface of the columnar first section and heat a part of the side surface of the columnar second section, for example, as in the heater 129 shown in fig. 7. In fig. 7, the heater 129 heats a part of the side surface of the second section, but the second section may not be heated. In this case, the second section is heated by heat transfer and waste heat from the first section.

In the non-combustion heating type fragrance extraction system according to the present embodiment, the heater preferably includes a second peripheral heating heater that heats the entire side surface and the entire bottom surface of the columnar first section, and heats at least a part of the side surface of the columnar second section or does not heat the second section. By adopting such a configuration, the balance of the components supplied to the user can be made uniform throughout the first half to the second half of the use, as in the above-described embodiment. The second peripheral heating heater can heat the entire side surface and the entire bottom surface of the columnar first section and the entire side surface of the columnar second section, as in the heater 129 shown in fig. 8 (a), for example. In fig. 8 (a), the heater 129 heats the side surface of the second section, but the second section may not be heated. In this case, the second section is heated by heat transfer and waste heat from the first section.

In the non-combustion heating type fragrance extraction system according to the present embodiment, the heater preferably includes an internal heating heater that heats the inside of the columnar first section in the entire axial direction and heats the inside of the columnar second section in a part of the axial direction or does not heat the second section. By adopting such a configuration, the balance of the components supplied to the user can be made uniform throughout the first half to the second half of the use, as in the above-described embodiment. The internal heater is capable of heating the inside of the columnar first section in the entire axial direction, and not heating the columnar second section, for example, as in the heater 129 shown in fig. 8 (b). In fig. 8 (b), the heater 129 does not heat the second section, but may heat the inside of the second section at a part in the axial direction.

In the non-combustion heating type fragrance extraction system according to the present embodiment, the heater may be a combination of the first or second external heating heater and the internal heater. The heater may be a combination of an outer peripheral heater that heats the entire side surfaces of the columnar first and second sections and an inner heater that heats the inside of the columnar first section in the entire axial direction and does not heat the columnar second section, as in the heater 129 shown in fig. 8 (c), for example.

The heating temperature by the heater is preferably 200 to 350 ℃. The heating temperature represents the temperature of the heater.

[ mode 2 ]

This embodiment includes the following [1b ] to [7b ]. According to the present embodiment, a non-combustion heating type flavor aspirator and a non-combustion heating type flavor aspiration system in which the amount of components to be delivered by heating is improved can be provided.

[1b] A non-combustion heating type flavor aspirator having a rod-like shape including a tobacco-containing section and a mouthpiece section, the tobacco-containing section including a tobacco sheet for the non-combustion heating type flavor aspirator of the present embodiment, wherein,

The mouthpiece section includes a filter section having a filter material,

[2b]According to [1b]The non-combustion heating type flavor aspirator, wherein the density of the filter tip filter material is 0.09g/cm ³ Above and 0.14g/cm ³ The following is given.

[3b] The non-combustion heating type flavor aspirator according to [1b ] or [2b ], wherein a compression change rate P of the filter medium represented by the following formula (1) is 88% or more and 95% or less.

P＝(D1×100)/D2 (1)

P (%): compression change rate

D1 (mm): diameter of filter medium in compression direction after compression of filter medium under compression load of 3N/mm per unit length in long axis direction and compression time of 10 seconds in such a manner that filter medium deforms in direction perpendicular to ventilation direction

D2 (mm): average diameter of filter media before compression

[4b] The non-combustion heating type flavor aspirator according to any one of [1b ] to [3b ], wherein a length of the filter medium in a longitudinal direction is 5mm or more and 20mm or less.

[5b]According to [1b]～[4b]The non-combustion heating type flavor aspirator according to any one of the above, wherein the ventilation resistance in the longitudinal direction of the filter segment is 1.0mmH ₂ O/mm or more and 4.0mmH ₂ O/mm or less.

[6b] The non-combustion heating type flavor aspirator according to any one of [1b ] to [5b ], wherein flavor capsules are disposed inside the filter medium.

[7b] A non-combustion heating type flavor-absorbing system comprising a heating device and the non-combustion heating type flavor-absorbing device of any one of [1b ] to [6b ] inserted into the heater in a contact manner, wherein the heating device comprises a heater, a battery unit as a power source of the heater, and a control unit for controlling the heater.

< non-combustion heating type fragrance aspirator >)

The non-combustion heating type flavor aspirator (also simply referred to as "non-combustion heating type flavor aspirator") according to one embodiment of the present invention is a rod-shaped non-combustion heating type flavor aspirator including a tobacco-containing section including the tobacco sheet for the non-combustion heating type flavor aspirator of the present embodiment and a mouthpiece section,

the mouthpiece section includes a filter section having a filter material,

Fig. 9 shows an example of the non-combustion heating type flavor aspirator according to the present embodiment. Hereinafter, a description will be given of the non-combustion heating type flavor aspirator with reference to fig. 9.

The rod-shaped non-combustion heating type flavor aspirator 210 shown in fig. 9 is a rod-shaped non-combustion heating type flavor aspirator comprising a tobacco-containing section 211, a mouthpiece section 214, and a wrapping paper 215 wrapping them, wherein the mouthpiece section 214 comprises a cooling section 212 and a filter section 213 containing a filter material, the cooling section 212 is adjacent to and sandwiched between the tobacco-containing section 211 and the filter section 213 with respect to the axial direction (also referred to as "long axis direction") of the non-combustion heating type flavor aspirator 210, and openings V are concentrically provided along the circumferential direction of the cooling section 212. The openings V are generally holes for facilitating the inflow of air from the outside by the suction of the user, and the inflow of air can reduce the temperature of the component or air flowing from the tobacco-containing section 211.

In the non-combustion heating type flavor aspirator 210, components generated by heating of the tobacco-containing section 211 and the like are delivered into the mouth of the user through the mouthpiece section. Examples of the component generated by heating include: flavor component from flavor, nicotine from tobacco, tar, aerosol component from aerosol generator. In the present specification, an aerosol generating agent refers to a base material for generating an aerosol.

The non-combustion heating type fragrance aspirator 210 preferably has a columnar shape satisfying a shape having an aspect ratio of 1 or more defined below.

Aspect ratio = h/w

w is the width of the bottom surface of the columnar body (in this specification, the width of the bottom surface on the tobacco-containing segment side), and h is the height, preferably h.gtoreq.w. In the present specification, the long axis direction is defined as a direction indicated by h. Therefore, even when w.gtoreq.h, the direction indicated by h is referred to as the long axis direction for convenience. The shape of the bottom surface is not limited, and may be a polygon, a rounded polygon, a circle, an ellipse, or the like, and the width w may be a diameter in the case of the bottom surface being a circle, a major diameter in the case of the bottom surface being an ellipse, or a diameter of the circumscribed circle or a major diameter of the circumscribed ellipse in the case of the polygon or the rounded polygon.

The length h of the non-combustion heating type flavor aspirator 210 in the longitudinal direction is not particularly limited, and is, for example, usually 40mm or more, preferably 45mm or more, and more preferably 50mm or more. In addition, the diameter is usually 100mm or less, preferably 90mm or less, and more preferably 80mm or less.

The width w of the bottom surface of the columnar body of the non-combustion heating type flavor aspirator 210 is not particularly limited, and is, for example, usually 5mm or more, preferably 5.5mm or more. In addition, the diameter is usually 10mm or less, preferably 9mm or less, and more preferably 8mm or less.

The ratio of the length of the cooling section to the length of the filter section in the longitudinal direction of the non-combustion heating type flavor aspirator (cooling section: filter section) is not particularly limited, but is usually 0.60:1.40 to 1.40:0.60, preferably 0.80 to 1.20:0.80 to 1.20, more preferably 0.85 to 1.15:0.85 to 1.15, still more preferably 0.90 to 1.10:0.90 to 1.10, and still more preferably 0.95 to 1.05:0.95 to 1.05 from the viewpoint of the amount of the flavor to be delivered.

By setting the ratio of the lengths of the cooling section and the filter section to be within the above range, it is possible to achieve the cooling effect, the effect of suppressing the loss caused by the generated vapor and aerosol adhering to the inner wall of the cooling section, and the effect of achieving a balance of the air amount and the flavor adjusting function of the filter and exhibiting a good flavor. In particular, when the cooling section is extended, the atomization of aerosol or the like is promoted, and a good flavor can be achieved, but when the cooling section is too long, adhesion of the passing substance to the inner wall occurs.

The ventilation resistance of the non-combustion heating type flavor aspirator 210 in the longitudinal direction of the average 1 is not particularly limited, but is usually 8mmH from the viewpoint of the easiness of aspiration ₂ O or more, preferably 10mmH ₂ O or more, more preferably 12mmH ₂ O or more, in addition, usually 100mmH ₂ O or less, preferably 80mmH ₂ O or less, more preferably 60mmH ₂ O is less than or equal to.

The ventilation resistance can be measured according to the ISO standard method (ISO 6565:2015) using, for example, a filter ventilation resistance tester manufactured by SelRean corporation. The ventilation resistance is an air pressure difference between the 1 st end face and the 2 nd end face when air of a predetermined air flow rate (17.5 cc/min) is flowed from one end face (1 st end face) to the other end face (2 nd end face) without permeation of air through the side face of the non-combustion heating type flavor aspirator 210. Units are generally in mmH ₂ O represents. It is known that in the length range (length 5mm to 200 mm) which is generally practiced, the relation between the ventilation resistance and the length of the non-combustion heating type flavor aspirator is proportional, and if the length is doubled, the ventilation resistance of the non-combustion heating type flavor aspirator is doubled.

[ cigarette holder section ]

The mouth end section 214 includes a filter section 213 having a filter medium, and the filter medium is not particularly limited as long as the filter medium is composed of fibers having a Y-shaped cross section in the circumferential direction and a single fiber denier of 8 to 12, and may be, for example, as shown in fig. 9, as follows: the filter segment 213 including the cooling segment 212 and the filter medium described above is disposed adjacent to and sandwiched between the tobacco-containing segment 211 and the filter segment 213 with respect to the axial direction of the non-combustion heating type flavor aspirator 210. The filter section 213 and the cooling section 212 are described in detail below.

(Filter section)

The filter segment 213 includes a filter medium composed of fibers having a Y-shaped cross section in the circumferential direction and having a single fiber denier of 8 to 12, and is not particularly limited as long as it has a function as a general filter. Typical functions of the filter may be exemplified by, for example: the amount of air mixed during aerosol inhalation, the flavor reduction, nicotine and tar reduction, etc. are adjusted, but not all of these functions are required. In addition, in a non-combustion heating type flavor smoking system having a tendency of decreasing the filling rate of tobacco filler with less generated components than in a cigarette product, prevention of dropping of tobacco filler while suppressing a filtering function is also one of important functions.

The shape of the filter segment 213 is not particularly limited, and a known shape may be used, and a generally cylindrical shape may be used.

The cross-sectional shape of the filter segment 213 in the circumferential direction is substantially circular, and the diameter of the circle may be appropriately changed according to the size of the product, and is usually 4.0mm or more and 9.0mm or less, preferably 4.5mm or more and 8.5mm or less, and more preferably 5.0mm or more and 8.0mm or less. When the cross section in the circumferential direction is not circular, the diameter described above is applied to a circle having the same area as the cross section.

The length of the circumference of the cross-sectional shape in the circumferential direction of the filter segment 213 may be changed as appropriate according to the size of the product, and is generally 14.0mm or more and 27.0mm or less, preferably 15.0mm or more and 26.0mm or less, and more preferably 16.0mm or more and 25.0mm or less.

The length of the filter segment 213 in the longitudinal direction may be appropriately changed depending on the size of the product, and is usually 15mm or more and 35mm or less, preferably 17.5mm or more and 32.5mm or less, and more preferably 20.0mm or more and 30.0mm or less.

The shape and size of the filter medium may be appropriately adjusted so that the shape and size of the filter segment 213 are within the above-described ranges, and the length of the filter medium in the longitudinal direction may be appropriately changed depending on the size of the product, and is usually 3mm or more and 30mm or less, preferably 5mm or more and 20mm or less, more preferably 8mm or more and 18mm or less, and still more preferably 10mm or more and 15mm or less, from the viewpoint of obtaining a desired hardness.

The ventilation resistance in the longitudinal direction of the filter segment 213 is not particularly limited, but is usually 1.0mmH from the viewpoint of the easiness of suction ₂ O/mm or more and 4.0mmH ₂ O/mm or less. In particular, when the filter medium has a flavor capsule described later, it is preferably 1.5mmH from the viewpoint of the easiness of suction ₂ O/mm or more and 4.0mmH ₂ O/mm or less, in this case, in filtrationWhen the filter medium further contains a flavor as described later, particularly when crystalline substances such as menthol are contained as the flavor, it is more preferable that the filter medium is 2.5mmH ₂ O/mm or more and 3.6mmH ₂ O/mm or less, on the other hand, in the case of not containing a fragrance, more preferably 1.9mmH ₂ O/mm or more and 3.0mmH ₂ O/mm or less. In the case where the filter medium does not have a flavor capsule described later, it is preferably 1.3mmH from the viewpoint of the easiness of suction, regardless of whether or not the flavor is contained ₂ O/mm or more and 2.4mmH ₂ O/mm or less. In addition, these conditions of ventilation resistance may also be used as conditions of ventilation resistance in the ventilation direction of the filter medium.

The ventilation resistance can be measured according to the ISO standard method (ISO 6565) by using, for example, a filter ventilation resistance measuring device manufactured by selean corporation. The ventilation resistance of the filter segment 213 is the air pressure difference between the 1 st end face and the 2 nd end face when air of a predetermined air flow rate (17.5 cc/min) is flowed from one end face (1 st end face) to the other end face (2 nd end face) without air permeation through the side face of the filter segment 213. Units are generally in mmH ₂ O represents. It is known that the relationship between the ventilation resistance of the filter segment 213 and the length of the filter segment 213 is proportional in the length range (length 5mm to 200 mm) which is generally implemented, and if the length is doubled, the ventilation resistance of the filter segment 213 is also doubled.

The filter segments 213 may be formed as single filters including a single filter segment, multi-segment filters including a plurality of filter segments such as double filters or triple filters, or the like.

The filter segment 213 can be produced by a known method, for example, in the case of using synthetic fibers such as cellulose acetate tow as a material of a filter medium, it can be produced by a method of spinning and crimping a polymer solution containing a polymer and a solvent. As this method, for example, the method described in international publication No. 2013/067511 can be used.

In the manufacture of the filter segment 213, adjustment of ventilation resistance and addition of additives (known adsorbents, flavors (e.g., menthol), granular activated carbon, flavor-retaining materials, and the like) to the filter material can be appropriately designed.

The filter material constituting the filter segment 213 is not particularly limited as long as it is composed of fibers having a Y-shaped cross section in the circumferential direction and having a single fiber denier of 8 to 12, and for example, a material in which a tow such as a cellulose acetate tow having a Y-shaped cross section is processed into a cylindrical shape may be used.

The shape of the circumferential cross section of the fibers constituting the tow is a Y-shape. When a tow having a fiber shape of Y is used, the fiber shape is more complex than when a tow having a general fiber shape such as a round shape is used, and therefore a filter segment excellent in the conveying amount can be easily obtained, and in particular, a filter segment having a high component conveying amount and a desired hardness can be produced with a small amount, that is, with suppressed cost.

From the viewpoint of increasing the transport amount of the component generated by heating, the single fiber denier (g/9000 m) of the fiber is not particularly limited as long as it is 8 to 12, and may be 9 to 11. When the single fiber denier of the fibers is smaller than the above range, the structure of the fibers constituting the filter medium becomes too dense, and therefore, the amount of the components to be transported decreases, and when it is larger than the above range, the structure of the fibers constituting the filter medium becomes too sparse, and sufficient hardness cannot be obtained. The total fiber denier (g/9000 m) of the fibers is not particularly limited, and from the viewpoint of increasing the transport amount of the component generated by heating, the total fiber denier may be 12000 to 35000, preferably 15000 to 30000. These single fiber deniers and total fiber deniers are particularly preferred when the circumference of the mouthpiece section is 22 mm. In the case of a fiber-filled filter, in order to improve the filter hardness, glyceryl triacetate may be added in an amount of 5% by weight or more and 10% by weight or less relative to the total fiber weight.

The method for producing a fiber having a Y-shaped cross section in the circumferential direction is not particularly limited, and for example, in the case of an acetate fiber, a cellulose acetate sheet (cellulose acetate) can be produced by acetylation of a pulp raw material, and then the cellulose acetate sheet is dissolved (doped) in acetone by a dissolver to spin, whereby a fibrous tow is produced, and in this spinning step, the Y-shaped cross section in the circumferential direction can be produced by changing the shape of the nozzle opening, and the thickness (filament denier) of the fiber can be changed by changing the nozzle aperture. Then, the total denier is determined according to the required air resistance, the number of bundled filaments (total denier/filament denier) is determined, spinning is performed using the required number of spinning chambers, the spun and bundled acetate fibers are uniformly corrugated (crimped) in a crimping machine, and the bundles traveling in a band shape are stacked while being reciprocated in the crimping machine, so that bundling can be performed.

The density of the filter medium (particularly, when the filter medium contains a flavor capsule to be described later, the density in a state of removing the flavor capsule) is not particularly limited, but is usually 0.09g/cm from the viewpoint of obtaining a desired hardness ³ Above and 0.25g/cm ³ Hereinafter, it is preferably 0.09g/cm ³ Above and 0.20g/cm ³ Hereinafter, more preferably 0.09g/cm ³ Above and 0.14g/cm ³ Hereinafter, it is more preferably 0.11g/cm ³ Above and 0.14g/cm ³ The following is given.

One of the indices showing hardness at the time of the compression change rate P of the filter material represented by the following formula (1) is not particularly limited, but is usually 85% or more and 98% or less, preferably 88% or more and 95% or less, more preferably 90% or more and 93% or less, from the viewpoint of obtaining a desired hardness. The method for measuring the compression change rate P is not particularly limited, and may be measured using, for example, sodim-H Hardness module manufactured by Sodim SAS, and the value thereof may be adjusted by changing the density and material of the filter medium.

P＝(D1×100)/D2 (1)

P (%): compression change rate

D1 (mm): diameter of filter medium in compression direction after compression of filter medium under compression load of 3N/mm per unit length in long axis direction and compression time of 10 seconds in such a manner that filter medium deforms in direction perpendicular to ventilation direction (round circumference direction in case of cylindrical shape)

D2 (mm): average diameter of filter media before compression

Since the compression change rate is one of the indices indicating the hardness of the filter material, the compression change rate is also indicated as "hardness" in the present specification.

The filter medium may contain a component such as a flavor material different from the flavor capsule described below, and examples of the flavor include: menthol, spearmint, peppermint, fenugreek or clove, medium chain fatty acid triglycerides (MCT), and the like, preferably menthol. These components may be used alone in 1 kind, or may be used in combination of 2 or more kinds in any kind and ratio.

The content of the flavor (particularly menthol) in the filter medium (excluding the flavor in the flavor capsule described later) is not particularly limited, but is usually 0.5% by weight or more and 15% by weight or less, preferably 3% by weight or more and 10% by weight or less, more preferably 10% by weight or more and 5% by weight or less.

The filter medium may be internally provided with a breakable additive releasing container (for example, a flavor capsule) including a breakable shell such as gelatin. The manner of the flavor capsule (also referred to as "additive releasing container" in this technical field) is not particularly limited, and a known manner may be adopted, for example, a breakable additive releasing container containing a breakable shell such as gelatin may be used. In this case, the flavor capsule, when broken before, during or after use by the user of the flavor aspirator, releases the liquid or substance (typically the flavorant) contained within the flavor capsule, which is then transferred to the tobacco smoke during use of the flavor aspirator and to the surrounding environment after use.

The form of the flavor capsule is not particularly limited, and for example, the flavor capsule may be a breakable flavor capsule, and the shape thereof is preferably a sphere. The additive contained in the flavor capsule may be any of the additives described above, and particularly preferably contains a flavoring agent and activated carbon. In addition, more than 1 material that helps filter smoke may be added as an additive. The form of the additive is not particularly limited, and is usually liquid or solid. It is noted that the use of capsules containing additives is well known in the art. Breakable perfume capsules and methods of making the same are well known in the art.

As flavoring agents, menthol, spearmint, peppermint, fenugreek or clove, medium chain fatty acid triglycerides (MCT) and the like can be mentioned, for example. The flavoring agent is menthol, or menthol, etc., or a combination thereof may be used.

When the flavor capsule is used, if the filament denier of the fibers constituting the filter medium is larger than the upper limit of the range, the diffusion of the component released from the flavor capsule into the filter tends to be insufficient, and if the filament denier is smaller than the lower limit, the diffusion of the component into the filter tends to be excessively promoted, so that the component delivery amount tends to be excessively suppressed.

From the viewpoint of improving strength and structural rigidity, the filter segment 213 may include a roll paper (plug wrap) for wrapping the filter material or the like. The way of winding the paper is not particularly limited, and may include one or more lines of adhesive joints. The adhesive may comprise a hot melt adhesive, and in addition, the hot melt adhesive may comprise polyvinyl alcohol. In the case where the filter segment is composed of two or more segments, the winding paper is preferably wound together with these two or more segments.

The material of the roll paper is not particularly limited, and a known material may be used, and a filler such as calcium carbonate may be contained.

The thickness of the rolled paper is not particularly limited, and is usually 20 μm or more and 140 μm or less, preferably 30 μm or more and 130 μm or less, more preferably 30 μm or more and 120 μm or less.

The basis weight of the roll paper is not particularly limited, and is usually 20gsm to 100gsm, preferably 22gsm to 95gsm, more preferably 23gsm to 90 gsm.

The wound paper may or may not be coated, and it is preferably coated with a desired material from the viewpoint of imparting functions other than strength and structural rigidity.

The filter section 213 may further comprise a central bore section having 1 or more hollows. The center hole section is generally disposed closer to the cooling section than the filter medium, and is preferably disposed adjacent to the cooling section.

The center hole section is composed of a filling layer having 1 or more hollow portions and an inner rod packing material (inner winding paper) that covers the filling layer. For example, the central bore section is composed of a filling layer having a hollow portion and an inner rod packing material that coats the filling layer. The central aperture section has the function of improving the strength of the mouthpiece section. The filler layer may be, for example, a rod having an inner diameter of 1.0mm or more and 5.0mm or less, which is obtained by filling cellulose acetate fibers at a high density, adding 6 mass% or more and 20 mass% or less of a plasticizer containing triacetin to the mass of cellulose acetate, and curing the plasticizer. Since the filling density of the fibers of the filling layer is high, air and aerosol flow only through the hollow portion during suction, and substantially do not flow into the filling layer. Since the filling layer inside the central hole section is a fiber filling layer, the feeling of touch from the outside in use is less likely to cause discomfort to the user. It should be noted that the central bore section may be formed without the inner rod wrapper and may be formed by thermoforming to retain its shape.

The central bore section and the filter plug may be connected by, for example, an outer rod wrapper (outer wrap). The outer rod wrapper may be, for example, cylindrical paper. In addition, the tobacco containing section 211, cooling section 212, and the joined central bore section and filter plug may be joined together by, for example, a tipping paper. The connection may be performed, for example, by applying a slurry such as a vinyl acetate-based slurry to the inner surface of the tipping paper, and winding the tobacco-containing section 211, the cooling section 212, and the connected center hole section and filter medium. It should be noted that the sections may be connected together by separating a plurality of interleaving papers a plurality of times.

(Cooling section)

The cooling section 212 is adjacent to and sandwiched between the tobacco-containing section and the filter section, and is typically a rod-like member such as a cylinder having a hollow (hollow) in cross section in the circumferential direction.

The cooling section 212 may be provided with concentric openings V (also referred to as "ventilation filters (Vf)" in the art) along its circumferential direction.

When an aerosol-generating agent is used in the tobacco-containing segment, the vapor containing the aerosol-generating agent and the tobacco flavor component, which is generated by heating the tobacco rod, contacts with air from the outside, and the temperature is reduced, so that the vapor is liquefied, and aerosol generation can be promoted.

In the case where the holes V existing in concentric circles are treated as 1 hole group, the number of hole groups may be 1, or may be 2 or more. In the case where there are 2 or more groups of openings, from the viewpoint of increasing the amount of the component to be transported by heating, it is preferable that the groups of openings are not provided in a region of less than 4mm in the direction of the cooling section side from the boundary between the cooling section and the filter section.

In the case where the non-combustion heating type flavor aspirator 210 is formed by wrapping the tobacco-containing section 211, the cooling section 212, and the filter section 213 with the tipping paper 215, it is preferable that the tipping paper 215 has an opening at a position immediately above the opening V provided in the cooling section 212. In the case of producing such a non-combustion heating type flavor aspirator 210, it is preferable from the viewpoint of ease of production that the non-combustion heating type flavor aspirator 210 is produced by using the cooling section 212 having no hole V, and then the holes penetrating through both the cooling section 212 and the tipping paper 215 are opened, because the tipping paper 215 having the hole overlapping the hole V can be prepared and wound.

The region having the openings V is preferably a region of 4mm or more, more preferably a region of 4.5mm or more, further preferably a region of 5mm or more, particularly preferably a region of 5.5mm or more, from the side of the cooling section 212 and the filter section 213 in the direction of the cooling section side, from the viewpoint of increasing the transport amount of the component generated by heating, and is preferably a region of 15mm or less, more preferably a region of 10mm or less, further preferably a region of 7mm or less, from the viewpoint of securing the cooling function.

The region having the openings V is preferably a region of 22mm or more, preferably a region of 23.5mm or more, preferably a region of 24mm or more, more preferably a region of 25mm or more, in the direction of the cooling section side from the suction port end of the non-combustion heating type flavor aspirator, from the viewpoint of increasing the amount of component to be delivered by heating, and is preferably a region of 38mm or less, more preferably a region of 36.5mm or less, more preferably a region of 33mm or less, from the viewpoint of securing the cooling function.

In addition, when the length of the cooling section 212 in the axial direction is 20mm or more based on the boundary between the cooling section 212 and the tobacco-containing section 211, the region having the opening V is preferably a region of 2mm or more, more preferably a region of 3.5mm or more, still more preferably a region of 7mm or more, from the boundary between the cooling section 212 and the tobacco-containing section 211 in the direction of the cooling section side, from the viewpoint of securing the cooling function, and is preferably a region of 18mm or less, more preferably a region of 16.5mm or less, still more preferably a region of 15mm or less, and particularly preferably a region of 14.5mm or less, from the viewpoint of increasing the transport amount of the components generated by heating.

The diameter of the opening V is not particularly limited, but is preferably 100 μm or more and 1000 μm or less, more preferably 300 μm or more and 800 μm or less. The opening is preferably substantially circular or substantially elliptical, and the diameter in the case of a substantially elliptical shape represents the major diameter.

The length of the cooling section in the longitudinal direction may be appropriately changed depending on the size of the product, and is usually 15mm or more, preferably 20mm or more, and is usually 40mm or less, preferably 35mm or less, more preferably 30mm or less. By setting the length of the cooling section in the longitudinal direction to be equal to or greater than the lower limit, a sufficient cooling effect can be ensured to obtain a good flavor, and by setting the length to be equal to or less than the upper limit, loss due to adhesion of generated vapor and aerosol to the inner wall of the cooling section can be suppressed.

In the case where cooling fins or the like for cooling are filled in the cooling section 212, the total surface area of the cooling section 212 is not particularly limitedThe production may be, for example, 150mm ² Above/mm and 1000mm ² And/mm or less. The surface area is the surface area per unit length (mm) of the direction of ventilation of the cooling section 212. The total surface area of the cooling section 212 is preferably 200mm ² Preferably at least/mm, more preferably 250mm ² Preferably 600mm or more ² Preferably less than or equal to/mm, more preferably 400mm ² And/mm or less.

The cooling section 212 preferably has a large total surface area of its internal structure. Thus, in a preferred embodiment, the cooling section 212 may be formed as follows: the folds are performed to form the channels, and then formed from a sheet of thin material that is pleated, and folded. When there are many folds or wrinkles in the volume to which the element is added, the total surface area of the cooling sections increases.

The thickness of the constituent material of the cooling section 212 is not particularly limited, and may be, for example, 5 μm or more and 500 μm or less, or may be 10 μm or more and 250 μm or less.

[ tobacco-containing section ]

The mode of the tobacco-containing section 211 is not particularly limited as long as it includes the tobacco sheet for the non-combustion heating type flavor inhaler of the present embodiment, and may be a mode in which a tobacco filler including a tobacco sheet is wound with roll paper. The tobacco filler may comprise an aerosol generator. An aerosol generating agent is a substrate that generates an aerosol by being heated, and examples thereof can be given: glycerol, propylene glycol, glyceryl triacetate, 1, 3-butanediol, and mixtures thereof.

The content of the aerosol-generating agent in the tobacco filler is not particularly limited, but is usually 5% by weight or more, preferably 10% by weight or more, and is usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less, relative to the total amount of the tobacco filler, from the viewpoint of sufficiently generating an aerosol and imparting a good flavor.

The tobacco-containing segment 211 may have a fitting portion with a heater or the like for heating the non-combustion heating type flavor aspirator.

The tobacco-containing section 211 formed by wrapping the tobacco filler with the roll paper preferably has a columnar shape, and in this case, the aspect ratio expressed by the height of the tobacco-containing section 211 in the longitudinal direction relative to the width of the bottom surface of the tobacco-containing section 211 is preferably 1 or more.

The shape of the bottom surface is not limited, and may be a polygon, a rounded polygon, a circle, an ellipse, or the like, and the width is a diameter in the case of the bottom surface being a circle, a long diameter in the case of the ellipse, a diameter of the circumscribed circle or a long diameter of the circumscribed ellipse in the case of the polygon or the rounded polygon. The height of the tobacco filler constituting the tobacco-containing section 211 is preferably about 10 to 70mm, and the width is preferably about 4 to 9 mm.

The length of the tobacco-containing segment 211 in the longitudinal direction may be appropriately changed depending on the size of the product, and is usually 10mm or more, preferably 12mm or more, more preferably 15mm or more, further preferably 18mm or more, and is usually 70mm or less, preferably 50mm or less, more preferably 30mm or less, further preferably 25mm or less. The ratio of the length h of the tobacco-containing section 211 to the length h of the non-combustion heating type flavor aspirator 210 in the longitudinal direction is usually 10% or more, preferably 20% or more, more preferably 25% or more, further preferably 30% or more, and further usually 60% or less, preferably 50% or less, more preferably 45% or less, further preferably 40% or less, from the viewpoint of balance between the delivery amount and the aerosol temperature.

(roll paper)

The composition of the roll paper is not particularly limited, and a general method may be used, and examples thereof include roll paper whose main component is pulp. Examples of the pulp include flax pulp, hemp pulp, sisal pulp, and pulp produced by mixing non-wood pulp such as spanish grass, which is usually used for roll paper for tobacco products, in addition to pulp produced from wood pulp such as conifer pulp and hardwood pulp.

As the kind of pulp, chemical pulp, polishing pulp, chemical polishing pulp, thermomechanical pulp, and the like obtained by a sulfate digestion method, an acidic/neutral/alkaline sulfite digestion method, an alkaline digestion method, and the like can be used.

In a papermaking process using the pulp, a roll paper is produced by homogenizing the texture in a fourdrinier, cylinder mould machine, cylinder short composite paper machine or the like. The paper roll may be provided with water resistance by adding a wet paper strength enhancer and the printing condition of the paper roll may be adjusted by adding a sizing agent, if necessary. Further, additives for papermaking such as aluminum sulfate, various anionic, cationic, nonionic or amphoteric yield improvers, drainage improvers, paper strength improvers and the like, and additives for papermaking such as dyes, pH adjusters, antifoaming agents, pitch control agents, slime control agents and the like may be added.

The basis weight of the roll paper is, for example, usually 20gsm or more, preferably 25gsm or more. On the other hand, the basis weight is usually 65gsm or less, preferably 50gsm or less, and more preferably 45gsm or less.

The thickness of the roll paper having the above characteristics is not particularly limited, but is usually 10 μm or more, preferably 20 μm or more, more preferably 30 μm or more, and is usually 100 μm or less, preferably 75 μm or less, more preferably 50 μm or less, from the viewpoints of rigidity, air permeability, and ease of adjustment in paper making.

The roll paper of the non-combustion heating type flavor aspirator may be square or rectangular.

When used as a roll paper for wrapping tobacco filler (for producing tobacco-containing segments), the length of one side may be about 12 to 70mm, the length of the other side may be about 15 to 28mm, the preferable length of the other side may be about 22 to 24mm, and the more preferable length may be about 23 mm. When the tobacco filler is wound into a cylindrical shape with the roll paper, for example, the end of the roll paper in the w direction is overlapped with the end on the opposite side by about 2mm, and the roll paper is glued, thereby forming a cylindrical paper tube shape, and forming a shape in which the tobacco filler is filled. The dimensions of the rectangular shaped roll paper may be determined according to the dimensions of the finished tobacco containing section 211.

When the tobacco-containing section 211 and other members adjacent to the tobacco-containing section 211 are connected to each other as in the case of tipping paper and wound, the length of one side may be 20 to 60mm, and the length of the other side may be 15 to 28mm.

In addition to the pulp described above, the roll paper may contain a filler. The content of the filler is 10 wt% or more and less than 60 wt%, preferably 15 wt% or more and 45 wt% or less, based on the total weight of the roll paper.

In the roll paper, the filler is preferably 15 wt% or more and 45 wt% or less in a preferable weight per unit area range (25 gsm or more and 45gsm or less).

The filler is preferably 15 to 45 wt% per unit area weight of 25 to 35gsm, and the filler is preferably 25 to 45 wt% per unit area weight of more than 35 to 45 gsm.

As the filler, calcium carbonate, titanium dioxide, kaolin, etc. can be used, and calcium carbonate is preferably used from the viewpoint of improving flavor and whiteness.

Various auxiliaries other than the base paper and the filler may be added to the roll paper, and for example, a water resistance improver is required to improve water resistance. The water resistance improver may comprise a wet paper strength improver (WS agent) and a sizing agent. Examples of wet paper strength enhancers are urea formaldehyde resins, melamine formaldehyde resins, polyamide epichlorohydrin (PAE), and the like. Examples of sizing agents include rosin soaps, alkyl Ketene Dimers (AKD), alkenyl Succinic Anhydride (ASA), and highly saponified polyvinyl alcohol having a saponification degree of 90% or more.

As the auxiliary agent, a paper strength enhancer may be added, and examples thereof include: polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, and the like. In particular, oxidized starch is known to be improved in air permeability by using a very small amount (Japanese patent application laid-open No. 2017-218699).

In addition, the roll paper may be suitably coated.

The roll paper may be provided with a coating agent on at least 1 of the 2 surfaces of the surface and the back thereof. The coating agent is not particularly limited, but is preferably a coating agent capable of forming a film on the surface of paper to reduce the permeability of liquid. Examples may include: cellulose derivatives such as alginic acid and its salts (e.g., sodium salt), polysaccharides such as pectin, ethylcellulose, methylcellulose, carboxymethylcellulose, and nitrocellulose, and starches and derivatives thereof (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch, and ester derivatives such as acetate starch, phosphate starch, and octenyl succinic acid starch).

[ tipping paper ]

The structure of the tipping paper 215 is not particularly limited, and a general method may be adopted, and examples thereof include tipping papers containing pulp as a main component. Examples of the pulp include flax pulp, hemp pulp, sisal pulp, and pulp produced by mixing non-wood pulp such as spanish grass, which is usually used for roll paper for tobacco products, in addition to pulp produced from wood pulp such as conifer pulp and hardwood pulp. These pulps may be used singly or in combination of plural kinds in any ratio.

The tipping paper 215 may be formed of one sheet or a plurality of sheets.

As a method of pulp, chemical pulp, polishing pulp, chemical polishing pulp, thermomechanical pulp, and the like obtained by a sulfate digestion method, an acidic/neutral/alkaline sulfite digestion method, an alkaline digestion method, and the like can be used.

The tipping paper 215 may be manufactured by a manufacturing method described later, or may be a commercially available product.

The shape of the tipping paper 215 is not particularly limited, and may be square or rectangular, for example.

The basis weight of the tipping paper 215 is not particularly limited, but is generally from 32gsm to 40gsm, preferably from 33gsm to 39gsm, and more preferably from 34gsm to 38 gsm.

The air permeability of the tipping paper 215 is not particularly limited, and is usually 0CORESTA Unit or more and 30000CORESTA Unit or less, preferably more than 0CORESTA Unit is 10000CORESTA Unit or less. The air permeability was a value measured in accordance with ISO 2965:2009, and was 1cm per 1 minute when the differential pressure across the paper was 1kPa ² Flow rate of gas (cm) of area ³ ) And (3) representing. 1CORESTA Unit (1 C.U.) 1kPa cm ³ /(min·cm ² )。

The tipping paper 215 may contain fillers in addition to the pulp described above, and examples thereof include: the metal carbonate such as calcium carbonate and magnesium carbonate, the metal oxide such as titanium oxide, titanium oxide and aluminum oxide, the metal sulfate such as barium sulfate and calcium sulfate, the metal sulfide such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum and the like are preferably contained in calcium carbonate from the viewpoint of improving whiteness/opacity and increasing heating rate. In addition, 1 kind of these fillers may be used alone, or 2 or more kinds may be used in combination.

The tipping paper 215 may contain various additives in addition to the pulp and filler, and may contain a water resistance improver for improvement. The water resistance improver includes a wet paper strength improver (WS agent) and a sizing agent. Examples of wet paper strength enhancers are urea formaldehyde resins, melamine formaldehyde resins, polyamide epichlorohydrin (PAE), and the like. Examples of sizing agents include rosin soaps, alkyl Ketene Dimers (AKD), alkenyl Succinic Anhydride (ASA), and highly saponified polyvinyl alcohol having a saponification degree of 90% or more.

For the tipping paper 215, a coating agent may be added to at least 1 of the 2 surfaces of the front and back surfaces thereof. The coating agent is not particularly limited, but is preferably a coating agent capable of forming a film on the surface of paper to reduce the permeability of liquid.

The configuration of the non-combustion heating type flavor aspirator of the present embodiment can be applied to a non-combustion heating type flavor aspiration system described later, but can also be applied to cigarettes (cigarettes) accompanied by combustion.

[ method for manufacturing non-Combustion heating type fragrance aspirator ]

The method for producing the non-combustion heating type flavor aspirator is not particularly limited, and a known method can be applied, and for example, the non-combustion heating type flavor aspirator can be produced by winding a tobacco-containing section and a mouthpiece section with tipping paper.

< non-combustion heating type fragrance suction System >)

A non-combustion heating type fragrance extraction system (also simply referred to as a "non-combustion heating type fragrance extraction system") according to another embodiment of the present invention is constituted by a heating device including a heater, a battery unit as a power source of the heater, and a control unit for controlling the heater, and the above-described non-combustion heating type fragrance extraction device that is inserted in contact with the heater.

As a mode of the non-combustion heating type flavor suction system, the outer circumferential surface of the non-combustion heating type flavor suction device 210 may be heated as shown in fig. 10, and the inside of the tobacco-containing section 211 in the non-combustion heating type flavor suction device 210 may be heated as shown in fig. 11. The heating device 220 shown in fig. 10 and 11 is provided with an air inlet hole, which is not shown here. The non-combustion heating type fragrance pumping system 230 will be described below with reference to fig. 11. Note that, in the non-combustion heating type flavor aspirator 210 in fig. 10 and 11, some symbols indicating the respective configurations shown in fig. 10 and 11 are omitted.

The non-combustion heating type fragrance suction system 230 is used by inserting the above-described non-combustion heating type fragrance suction unit 210 into a heater 221 disposed in the heating device 220 so as to be in contact with the heater.

The heating device 220 includes a battery unit 222 and a control unit 223, for example, in a resin body 224.

When the non-combustion heating type flavor aspirator 210 is inserted into the heating device 220, the outer circumferential surface of the tobacco-containing section 211 is in contact with the heater 221 of the heating device 220, and almost the entire outer circumferential surface of the tobacco-containing section 211 and a part of the outer circumferential surface of the tipping paper are in contact with the heater 221.

The heater 221 of the heating device 220 generates heat by control based on the control unit 223. By transferring this heat to the tobacco-containing section 211 of the non-combustion heating type flavor aspirator 210, the aerosol generator, flavor component, and the like contained in the tobacco filler of the tobacco-containing section 211 volatilize.

The heater 221 may be, for example, a sheet heater, a flat heater, or a cylindrical heater. The sheet heater is a soft sheet heater, and examples thereof include a heater comprising a film (thickness of about 20 μm to 225 μm) of a heat-resistant polymer such as polyimide. The flat heater is a rigid flat heater (thickness of about 200 μm to 500 μm), and examples thereof include a heater having a resistance circuit on a flat substrate and having the portion as a heat generating portion. The cylindrical heater is a hollow or solid cylindrical heater (thickness of about 200 μm to 500 μm), and examples thereof include a heater having a resistor circuit on an outer circumferential surface of a cylinder made of metal or the like and having the portion as a heat generating portion. Further, a rod heater and a cone heater made of metal or the like having a resistor circuit therein and having the resistor circuit as a heat generating portion may be mentioned. The cross-sectional shape of the cylindrical heater in the circumferential direction may be circular, elliptical, polygonal, rounded polygonal, or the like.

In the case of the method of heating the outer circumferential surface of the non-combustion heating type flavor aspirator 210 as shown in fig. 10, the above-described sheet heater, flat plate heater, and cylindrical heater may be used. On the other hand, in the case of heating from the inside of the tobacco-containing section 11 in the non-combustion heating type flavor aspirator 210 as shown in fig. 11, the above-described flat plate heater, columnar heater, and taper heater may be used.

When the length of the tobacco-containing segment 211 in the longitudinal direction is Lmm, the length of the heater 221 in the longitudinal direction may be within a range of l±5.0 mm. The length of the heater 221 in the longitudinal direction is preferably Lmm or more from the viewpoint of sufficiently volatilizing an aerosol generating agent, flavor components, and the like contained in the tobacco filler, that is, aerosol transport, by sufficiently transferring heat to the tobacco-containing section 211, and is preferably l+0.5mm or less, l+1.0mm or less, l+1.5mm or less, l+2.0mm or less, l+2.5mm or less, l+3.0mm or less, l+3.5mm or less, l+4.0mm or less, l+4.5mm or l+5.0mm or less from the viewpoint of suppressing the generation of components that cause undesirable effects on flavor, and the like.

The heating time and the heating temperature of the non-combustion heating type fragrance suction unit 210 using the heater 221 may be set in advance according to each non-combustion heating type fragrance suction system 230. For example, the preset may be performed by: after the non-combustion heating type fragrance aspirator 210 is inserted into the heating device 220, preheating is performed for a certain time, so that the temperature of the outer circumferential surface of the portion of the non-combustion heating type fragrance aspirator 210 that has been inserted into the heating device 220 is heated to X (c), and then the temperature is maintained at a certain temperature of X (c) or less.

From the viewpoint of the transport amount of components and the like generated by heating, the above X (. Degree. C.) is preferably 80℃to 400 ℃. Specifically, the temperature of the mixture may be 80 ℃, 90 ℃, 100 ℃, 110 ℃, 120 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 170 ℃, 180 ℃, 190 ℃, 200 ℃, 210 ℃, 220 ℃, 230 ℃, 240 ℃, 250 ℃, 260 ℃, 270 ℃, 280 ℃, 290 ℃, 300 ℃, 310 ℃, 320 ℃, 330 ℃, 340 ℃, 350 ℃, 360 ℃, 370 ℃, 380 ℃, 390 ℃, 400 ℃.

By heating with the heater 221, vapor including components derived from the aerosol-generating agent generated by the tobacco-containing section 211, components derived from the flavor component, and the like passes through the mouthpiece section 214 composed of the cooling section 212, the filter section 213, and the like, and reaches the mouth of the user.

From the viewpoints of promoting inflow of air from the outside and suppressing stagnation of components generated by heating and air in the cooling section 212, as shown in fig. 12, the opening V provided in the cooling section 212 is preferably located closer to the suction end side than the end (the portion indicated by an arrow X in the drawing) of the cooling section 212 on the suction end side of the region in contact with the heating device 220. In order to facilitate insertion of the non-combustion heating type flavor aspirator 210, the insertion port of the non-combustion heating type flavor aspirator 210 of the heating device 220 may be tapered as shown in fig. 13, and in this case, the end portion on the suction port end side of the region in contact with the heating device 220 is a position indicated by an arrow Y in the drawing. Note that, in the non-combustion heating type flavor aspirator 210 in fig. 12 and 13, some symbols indicating the respective configurations shown in fig. 9 to 11 are omitted.

[ mode of 3 ]

This embodiment includes the following [1c ] to [13c ]. According to the present embodiment, a non-combustion heating type flavor aspirator having a tobacco-containing segment excellent in balance between fracture suppression and heat transfer efficiency can be provided.

[1c] A non-combustion heating type flavor aspirator, comprising:

A tobacco-containing segment comprising the non-combustion heating type flavor-absorbing tobacco sheet of the present embodiment,

Adjacent member adjacent to the tobacco-containing segment, and

winding the tobacco-containing segment of the winding packaging material or winding the tobacco-containing segment and adjacent components of the winding packaging material,

the high heat transfer portion is wrapped around the downstream end of the tobacco-containing section.

[2c] The non-combustion heating type flavor aspirator according to [1c ], wherein the high heat transfer portion winds and wraps the tobacco-containing section from the vicinity of the downstream end to the vicinity of the upstream end of the adjacent member.

[3c] The non-combustion heating type flavor aspirator according to [1c ] or [2c ], wherein the wrapping material is a tipping paper connecting the tobacco-containing section and the adjacent member.

[4c] The non-combustion heating type flavor aspirator according to [1c ], wherein the wrapping material is a roll paper directly wrapping the tobacco sheet in the tobacco-containing section.

[5c] The non-combustion heating type flavor aspirator according to any one of [1c ] to [4c ], wherein the high heat transfer portion is composed of a material satisfying the heat transfer characteristics of formula (1),

Q _dT ≥330(W/℃)···(1)

In which Q _dT For the heat transfer defined by the following formula calculated based on the cylindrical sampleThe coefficient of the quantity,

Q _dT ＝K×2πL/ln(r ₂ /r ₁ )

k=coefficient of thermal conductivity (W/m/. Degree.C)

L = axial length of sample (mm)

r ₂ Outer radius of =sample (mm)

r ₁ Inner radius (mm) of the sample.

[6c] The non-combustion heating type flavor aspirator according to any one of [1c ] to [5c ], wherein the Gao Chuanre portion is present at a portion heated by the heater of the tobacco-containing section.

[7c] The non-combustion heating type flavor aspirator according to any one of [1c ] to [6c ], wherein the vicinity of the downstream end of the tobacco-containing section is a region having the downstream end as a starting point and a position of 5 to 50% of the axial length of the tobacco-containing section as an ending point.

[8c] The non-combustion heating type flavor aspirator according to any one of [2c ], [3c ] or [5c ] to [7c ], wherein the vicinity of the upstream end of the adjacent member is a region having the upstream end as a starting point and a position of 1 to 15% of the axial length of the adjacent member as an ending point.

[9c] The non-combustion heating type flavor aspirator according to any one of [1c ] to [8c ], wherein the high heat transfer portion has an axial length of 3 to 10mm.

[10c] The non-combustion heating type flavor aspirator according to any one of [1c ] to [9c ], wherein the high heat transfer portion comprises a metal selected from the group consisting of aluminum, stainless steel, gold, silver, and combinations thereof.

[11c] The non-combustion heating type flavor aspirator according to any one of [1c ] to [10c ], wherein the high heat transfer portion comprises paper and the metal particles or metal flakes carried on the paper.

[12c] The non-combustion heating type flavor aspirator according to any one of [1c ] to [11c ], wherein the adjacent member is a cooling member.

[13c] A non-combustion heated flavor pumping system, comprising: [1c] the non-combustion heating type flavor aspirator and heating device according to any one of [12c ],

the heating device is provided with a heater for heating the part of the tobacco-containing section of the non-combustion heating type flavor aspirator, which is wrapped by the high heat transfer part.

1. Non-combustion heating type fragrant aspirator

Fig. 18 shows an embodiment of the non-combustion heating type flavor aspirator according to the present embodiment. In the figure, 310 is a non-combustion heating type flavor aspirator, 301 is a tobacco-containing section, 303 is an adjacent member (preferably a cooling member) adjacent to the tobacco-containing section, 305 is a mouthpiece, 352 is a filter, 354 is a center hole filter, 307 is tipping paper, 309 is a wrapping material, and V is ventilation. The manner shown in fig. 18 is also called a non-combustion direct heating type flavor aspirator because the tobacco sheet is directly heated.

(1) Tobacco-containing segment

The tobacco-containing segment comprises the tobacco sheet of the present embodiment, and is a substantially cylindrical member for producing the cigarette flavor component contained in the tobacco sheet. The tobacco-containing segment includes a tobacco sheet and a roll paper (wrapping material) wound around the tobacco sheet. The shape of the tobacco sheet filled in the roll paper is not limited, and examples thereof include a sheet-like shape itself, a shape obtained by cutting the sheet into a width of 0.8 to 1.2mm, and the like. Instead of cutting the sheet, the sheet may be gathered, folded, or formed into a spiral shape, and the roll paper may be filled with the sheet to form a tobacco-containing segment. The sheet may be cut into rectangular shapes, and the tobacco-containing segments may be produced by filling the roll paper with the sheet so that the longitudinal direction of the concentric circles or rectangles is parallel to the longitudinal direction of the tobacco-containing segments.

The packing density of the tobacco sheet is not particularly limited, but is usually 250mg/cm from the viewpoint of securing the characteristics of the non-combustion heating type flavor aspirator and imparting a good cigarette flavor ³ The above is preferably 320mg/cm ³ The above. In addition, the upper limit is usually 800mg/cm ³ Hereinafter, 600mg/cm is preferable ³ The following is given. The length of the tobacco-containing section 301 is not limited, and is preferably 15 to 25mm. The diameter is also not limited, and is preferably 6 to 8mm.

The tobacco sheet may be heated to produce vapor. The heating temperature is not limited, and is about 30 to 350 ℃. In order to promote the generation of aerosol, an aerosol source such as a polyhydric alcohol such as glycerin, propylene glycol, 1, 3-butylene glycol, etc. may be added to the tobacco sheet. The amount of the aerosol source to be added is preferably 5 to 50% by weight, more preferably 10 to 30% by weight, based on the dry weight of the tobacco sheet. In addition, a known flavor or the like may be added to the tobacco sheet.

(2) Adjacent components

The adjacent member 303 refers to a member adjacent to the downstream side of the tobacco-containing section 301. In the present embodiment, downstream refers to a direction toward the suction end. Examples of the adjacent members include a cooling member for cooling the aerosol, a support member for improving the strength of the entire appliance, and a mouthpiece described later. In the present embodiment, the adjacent member 303 is preferably a cooling member.

The cooling means is a means for cooling the cigarette flavor components, vapor, and the like generated by the tobacco-containing section 301 to promote aerosolization. The cooling member may be a hollow paper tube. The paper tube is preferably made of cardboard having higher rigidity than the roll paper or the tipping paper. The paper tube may be provided with ventilation V (openings). The ventilation is preferably arranged in a plurality along the circumference of the paper tube. In addition, in order to improve the heat exchange efficiency, the cooling member may be filled with a pleated sheet. The size of the cooling member is not limited, and the length is preferably 15 to 25mm, and the diameter is preferably 5.5 to 7.5mm.

(3) Winding packaging material

The wrap-around packaging material wrap around the tobacco-containing segment, or the tobacco-containing segment and an adjacent component. The wound package material has a high heat transfer portion having higher heat transfer than the abutted wound member. The non-combustion heating type flavor aspirator having such a constitution is excellent in balance between the suppression of fracture and heat transfer efficiency, and can increase the total smoke amount. Examples of the material constituting the high heat transfer portion include a material having a thermal conductivity of 50 (W/m/. Degree.C.) or more. Specific examples of such a material include aluminum, iron, stainless steel, zinc, gold, and silver.

The heat transfer from the wrapping material to the tobacco-containing segment varies depending on the axial length, thickness, or diameter of the non-combustion heating type flavor aspirator of the high heat transfer portion, in addition to the coefficient of thermal conductivity of the material used. Therefore, the material constituting the high heat transfer portion may be selected so as to preferably satisfy the heat transfer characteristics of the formula (1).

Q _dT ≥330(W/℃)···(1)

In which Q _dT Is a heat transfer coefficient defined by the following equation calculated based on the cylindrical sample shown in fig. 21.

Q _dT ＝K×2πL/ln(r ₂ /r ₁ )

K=coefficient of thermal conductivity (W/m/. Degree.C)

L = axial length of sample (mm)

r ₂ Outer radius of =sample (mm)

r ₁ Inner radius of sample (mm)

Specifically, Q _dT As defined below.

FIG. 21 shows the inner radius r ₁ Radius r of outer circle ₂ A cylindrical sample with a height L, and an inner wall temperature T ₁ The temperature of the outer wall is T ₂ . In this case, the heat transfer rate Q (W) is obtained by equation (i) according to fourier law. K is the thermal conductivity (W/m/. Degree.C.), and Am is the logarithmic average area (m ² )。

[ mathematics 1]

When this is transformed into formula (ii) and both sides are integrated, formula (iii) is established, and then, the transformation into formula (1) can be performed. Namely Q _dT The heat transfer rate Q (W) obtained in the model of fig. 21 is divided by the temperature difference between the inner wall and the outer wall.

[ math figure 2]

For example, in the case of a roll type of a non-combustion heating type flavor aspirator having a diameter of about 5mm, when aluminum (k=236 (W/m/°c)) is used, the following expression (1) can be satisfied.

TABLE 2

1) "Like annual table 2021 national astronomical plaited" (pill good publication)

In the case of a standard roll type of a non-combustion heating type flavor aspirator having a diameter of about 7mm, the following expression (1) can be satisfied. The following table shows the case where a material having low heat transfer property is used.

TABLE 3

As described above, in one embodiment, Q _dT Preferably 650 (W/. Degree.C.) or more or 850 (W/. Degree.C.) or more. The high heat transfer portion is selected from aluminum, stainless steel, gold, silver, and combinations thereof.

The winding package material may be constituted only by the high heat transfer portion, or may be provided with other materials. For example, the wound package material may be a laminate (bonded body) in which metal particles or metal sheets are supported on paper or a polymer sheet. The winding packaging material may be a composite in which particles of a metal, ceramic, or the like having high heat transfer property are dispersed in a matrix such as paper or a polymer. Alternatively, the winding package may be formed by joining sheets of paper, polymer, or the like to sheets of metal, ceramic, or the like having high heat conductivity at or near the end.

As shown in fig. 18 (1), the high heat transfer portion of the wrapping material 309 wraps around the vicinity of the downstream end of the tobacco-containing section 301. For ease of explanation, the downstream end of the tobacco-containing section 301 is set to origin 0, the upstream end of the tobacco-containing section 301 is set to X, and the downstream end of the adjacent member 303 is set to-Y. The vicinity of the downstream end of the tobacco-containing segment 301 is preferably a region starting from the origin 0 and ending at 0.05X to 0.5X, and more preferably a region starting from the origin 0 and ending at 0.05X to 0.2X. From the viewpoint of making the effect of the present embodiment more remarkable, it is preferable that the high heat transfer portion also wraps the junction of the tobacco-containing section 301 and the adjacent member 303, that is, also wraps the vicinity of the upstream end of the adjacent member 303. The vicinity of the upstream end of the adjacent member 303 is preferably a region having an origin 0 as a starting point and a terminal point of-0.01Y to-0.5Y, and more preferably a region having a terminal point of-0.01Y to-0.15Y. In addition, from the viewpoint of improving the heat conductivity, the high heat transfer portion may be wound up to the most upstream end portion of the tobacco-containing section 301. As shown in fig. 18 (2), the wrapping material 309 may be joined to the end surface of the tipping paper 307 to be integrated as tipping paper. As shown in fig. 18 (3), the tipping paper 307 may be disposed outside the wrapping material 309. As described above, the wrapping material 309 may be constituted by only the high heat transfer portion, or may be provided with other materials, and for simplicity of explanation, fig. 18 and 20 show a configuration in which the wrapping material 309 is constituted by only the high heat transfer portion.

Fig. 20A shows a specific manner in which the wrapped wrapper 309 extends from the tobacco-containing section 301 to the adjacent member 303. In this embodiment, the tipping paper 307 is not wrapped around the tobacco-containing segment 301. In the figure, 308 is the 2 nd roll paper, preferably made of paper. Fig. 20A (1) shows a mode in which the wrapping material 309 is joined to the 2 nd roll paper 308 to be integrated and wrapped around from the front end portion of the tobacco-containing section 301 to the upstream end portion of the adjacent member 303. Fig. 20A (2) shows a manner in which the wrapping material 309 is wrapped around from the downstream end portion of the tobacco-containing section 301 to the upstream end portion of the adjacent member 303, and the 2 nd roll paper 308 is wrapped around the tobacco-containing section 301, with a portion thereof being present at the outer peripheral portion of the wrapping material 309. Fig. 20A (3) shows a manner in which the 2 nd roll paper 308 is wound around the tobacco-containing section 301, and the winding wrapper 309 is wound around the downstream end portion of the tobacco-containing section 301 from above the 2 nd roll paper 308 and extends to the upstream end portion of the adjacent member 303.

Fig. 20B shows a specific manner in which the wrapping material 309 wraps around the downstream end of the tobacco-containing section 301. In this embodiment, the tipping paper 307 is wrapped around the downstream end of the tobacco-containing section 301. Fig. 20B (1) shows a mode in which the wrapping material 309 is joined to the 2 nd roll paper 308 to be integrated and the tobacco-containing segment 301 is wrapped around. Fig. 20B (2) shows a manner in which the roll paper 308 is wound around the tobacco-containing section 301 from above the roll wrapper 309 around the downstream end portion of the tobacco-containing section 301 by the roll wrapper 309. Fig. 20B (3) shows a manner in which the 2 nd roll paper 308 is wound around the tobacco-containing section 301, and the winding wrapper 309 is wound around the downstream end portion of the tobacco-containing section 301 from above the 2 nd roll paper.

Fig. 20C shows a specific manner in which the wrapping material 309 is wrapped with the tipping paper 307. In this embodiment, the wrapping material 309 is attached to a part of the inner circumferential surface of the tipping paper 307. Fig. 20C (1) shows a manner in which the above-described wrapping material 309 wraps around the downstream end portion of the tobacco-containing section 301 wrapped by the 2 nd roll paper 308 and the upstream end portion of the adjacent member 303. The upstream end of the tipping paper 307 is located at the same position as the upstream end of the wrapping material 309. Fig. 20C (2) shows the manner in which the upstream end of the tipping paper 307 extends to the upstream end of the tobacco-containing section 301 in fig. 20C (1). Fig. 20C (3) shows the manner in which the tipping paper 307 and the wrapped wrapper 309 extend to the upstream end of the tobacco-containing section 301 in fig. 20C (1).

The high heat transfer portion of the wrapped wrapper 309 is preferably present in the portion of the tobacco containing section 301 that is heated by the heater. In one embodiment, the axial length of the high heat transfer portion is about 3 to 10 mm.

(4) Cigarette holder

The mouthpiece is a member constituting the mouthpiece end. In one embodiment, the mouthpiece 305 is provided with a filter 352 and a central aperture filter 354. As the filter 352 and the center hole filter 354, known members can be used.

2. Non-combustion heating type fragrance sucking system

The combination of the non-combustion heating type fragrance aspirator and the heating unit is also referred to as a non-combustion heating type fragrance aspiration system. Fig. 19 shows one way of this system. In the figure, 300 is a non-combustion heating type flavor suction system, 310 is a non-combustion heating type flavor aspirator, and 330 is a heating unit provided with a heater. The heating unit includes a heater, a cover, a power supply, and the like.

The heater preferably electrically heats the tobacco-containing segment 301. The shape of the heater is not limited, and the heater may be disposed on the outer periphery of the tobacco-containing section 301. The heater may be, for example, a sheet heater, a flat heater, a cylindrical heater, or a needle heater. The sheet heater is a soft sheet heater, and examples thereof include a heater comprising a film (thickness of about 20 μm to 225 μm) of a heat-resistant polymer such as polyimide. The flat heater is a rigid flat heater (thickness of about 200 μm to 500 μm), and examples thereof include a heater having a resistance circuit on a flat substrate and having the portion as a heat generating portion. The cylindrical heater is a hollow or solid cylindrical heater (thickness of about 200 μm to 500 μm), and examples thereof include a heater having a resistor circuit on an outer circumferential surface and having the portion as a heat generating portion. The cross-sectional shape of the cylindrical heater may be circular, elliptical, polygonal, rounded polygonal, etc.

Examples

Hereinafter, specific examples of the present embodiment will be described, but the present invention is not limited thereto.

Example 1

Tobacco flakes (tobacco leaves) were dry-pulverized with a Hosokawa Micron ACM machine to obtain tobacco powder. The cumulative 50% particle diameter (D50) and the cumulative 90% particle diameter (D90) in the particle diameter distribution based on the volume of the dry laser diffraction method were measured using a Mastersizer (trade name, manufactured by Spectis company Malvern Panalytical, inc.), and the results were 57 μm and 216 μm, respectively.

Using the above tobacco powder, a tobacco sheet was produced by a rolling method. Specifically, 87 parts by mass of the tobacco powder, 12 parts by mass of glycerin as an aerosol generating agent, and 1 part by mass of carboxymethyl cellulose as a molding agent were mixed and kneaded by an extrusion molding machine. The kneaded material was formed into a sheet by using 2 pairs of metal rolls, and dried in a heated air circulation oven at 80 ℃. The tobacco sheet was cut into dimensions of 0.8mm by 9.5mm using a chopper.

For cut tobacco sheets, the fluffiness was measured. Specifically, the cut tobacco sheet was left in a 60% room at 22℃for 48 hours, and then measured for fluffiness using DD-60A (trade name, manufactured by Borgward Co.). The cut tobacco sheet 15g was placed in a cylindrical container having an inner diameter of 60mm, and the volume at 30 seconds of compression was determined under a load of 3kg, and the measurement was performed. The results are shown in Table 4. In table 4, the bulk is expressed as a rate (%) of increase in bulk with respect to a reference value based on the value of bulk of comparative example 1 described below.

Example 2

Tobacco sheets were produced and evaluated in the same manner as in example 1, except that tobacco powders having a cumulative 50% particle diameter (D50) and a cumulative 90% particle diameter (D90) of 121 μm and 389 μm, respectively, in a volume-based particle diameter distribution by a dry laser diffraction method were used as the tobacco powders. The results are shown in Table 4.

Example 3

Tobacco sheets were produced and evaluated in the same manner as in example 1, except that tobacco powders having a cumulative 50% particle diameter (D50) and a cumulative 90% particle diameter (D90) of 225 μm and 623 μm, respectively, in a volume-based particle diameter distribution by a dry laser diffraction method were used as the tobacco powders. The results are shown in Table 4.

Comparative example 1

Tobacco sheets were produced and evaluated in the same manner as in example 1, except that tobacco powders having a cumulative 50% particle diameter (D50) and a cumulative 90% particle diameter (D90) of 32 μm and 84 μm, respectively, in a volume-based particle diameter distribution by a dry laser diffraction method were used as the tobacco powders. The results are shown in Table 4.

TABLE 4

D3, 2 surface area (loading) average particle diameter

D4, 3 volume (load) average particle diameter

According to table 4, the tobacco sheets of examples 1 to 3 of the tobacco sheet of the present embodiment have improved bulk as compared with the tobacco sheet of comparative example 1 in which the D90 of the tobacco powder measured by the dry laser diffraction method is less than 200 μm. In examples 1 to 3, tobacco sheets were produced by a rolling method, but when tobacco sheets were produced by a casting method in the same manner, the bulk was also improved.

< production of non-Combustion heating type fragrance aspirator >)

Reference example 1b

As the tobacco filler, a filler obtained by mixing 15g/100g of glycerin and 4g/100g of propylene glycol with filaments of a tobacco sheet was prepared. Roll paper for high-speed winder (manufactured by Nippon Paper Papylia Co., ltd., weight per unit area of 35 g/m) ² Thickness 52 μm) of the wrapped tobacco filler.

The average weight per 1 filament was 0.8g, the roll circumference was 22mm and the roll length was 68mm.

The wrapped tobacco-containing sections were stored in plastic sealed containers of 200 pieces each per level.

The stored tobacco-containing segment was cut into pieces having a length of 20mm. Then, a tobacco-containing segment, a paper tube having a length of 20mm, a center hole having a through hole (diameter: 4.5 mm) having a length of 12mm, and a filter plug comprising cellulose acetate fibers (single fiber denier (g/9000 m): 12 and total fiber denier (g/9000 m): 28000) having a cross section in the circumferential direction having a length of 8mm and a Y shape were combined with the tipping paper prepared as described above (density: 0.122g/cm ³ Compression change rate P (hereinafter referred to as "hardness"): 88%) was wound to prepare a non-combustion heating type flavor aspirator having no hole, and then 17 holes were opened at a position of 5.5mm (25.5 mm from the suction end of the non-combustion heating type flavor aspirator) in the direction of the paper tube side from the boundary between the paper tube and the center hole filter so as to be concentric along the circumferential direction of the paper tube and so as to penetrate both the tipping paper and the paper tube, and the hole was provided, whereby the non-combustion heating type flavor aspirator of reference example 1b was prepared. The ventilation resistance of the filter section of the non-combustion heating type flavor aspirator in the long axis direction is 1.35mmH ₂ O/mm。

The compression change rate P (hardness) of the filter material represented by the above formula (1) was measured using a Sodim-H Hardness module, manufactured by Sodim SAS company, or the like. This is the same in all of the following reference examples and comparative examples.

Comparative example 1b

From single fiber denier (g/9000 m): 12. total fiber denier (g/9000 m): 28000 filter tip filter material (density: 0.122 g/cm) ³ ) Change to single fiber denier (g/9000 m): 5.9, total fiber denier (g/9000 m): 35000 filter tip (density 0.143 g/cm) ³ Hardness: 87%) a non-combustion heating type flavor aspirator of comparative example 1b was fabricated by the same method as the non-combustion heating type flavor aspirator of reference example 1 b. The ventilation resistance of the filter section of the non-combustion heating type flavor aspirator in the long axis direction was 2.62mmH ₂ O/mm。

Reference example 2b

Will contain peppermintThe non-combustion heating type flavor aspirator of reference example 2b was produced in the same manner as the non-combustion heating type flavor aspirator of reference example 1b except that the alcohol flavor capsule (spherical shape having a diameter of 3.5 mm. The flavor capsule of other reference example and comparative example was also disposed in the filter medium, the length of the center hole was changed from 12mm to 8mm, and the length of the filter medium was changed from 8mm to 12 mm. The density (density of the state of removing the perfume capsule), hardness and ventilation resistance in the long axis direction of the filter tip section of the non-combustion heating type perfume aspirator were 0.122g/cm ³ 、88％、1.93mmH ₂ O/mm. The parameters of the filter segments were evaluated without breaking the flavor capsules. The same applies to other reference examples and comparative examples in which perfume capsules were used.

Reference example 3b

From single fiber denier (g/9000 m): 12. total fiber denier (g/9000 m): 28000 filter tip filter material (density: 0.122 g/cm) ³ ) Change to single fiber denier (g/9000 m): 8. total fiber denier (g/9000 m): 28000 filter tip filter material (density: 0.119 g/cm) ³ Hardness: 89%), the non-combustion heating type fragrance aspirator of reference example 3b was fabricated by the same method as the non-combustion heating type fragrance aspirator of reference example 1 b. The ventilation resistance of the filter section of the non-combustion heating type flavor aspirator in the long axis direction is 1.69mmH ₂ O/mm。

Reference example 4b

The perfume capsule containing menthol was disposed in the filter medium, the length of the center hole was changed from 12mm to 8mm, the length of the filter medium was changed from 8mm to 12mm, and the perfume capsule was changed from single fiber denier (g/9000 m): 12. total fiber denier (g/9000 m): 28000 filter tip filter material (density: 0.122 g/cm) ³ Hardness: 88%) to single fiber denier (g/9000 m): 8. total fiber denier (g/9000 m): 28000 filter tip filter material (Density: 0.123 g/cm) ³ Hardness: 91%) by the following procedure, except that the non-combustion heating type flavor aspirator of reference example 4b was prepared in the same manner as the non-combustion heating type flavor aspirator of reference example 1 b. The non-combustion heating type flavorThe ventilation resistance in the long axis direction of the filter segment of the aspirator was 2.76mmH ₂ O/mm。

Reference example 5b

A non-combustion heating type flavor aspirator of reference example 5b was fabricated in the same manner as the non-combustion heating type flavor aspirator of reference example 1b except that the length of the center hole was changed from 12mm to 6mm and the length of the filter medium was changed from 8mm to 14 mm. The density, hardness, and ventilation resistance in the longitudinal direction of the filter tip section of the non-combustion heating type flavor aspirator were 0.129g/cm, respectively ³ 、90％、1.58mmH ₂ O/mm。

Reference example 6b

The length of the center hole was changed from 12mm to 6mm, the length of the filter medium was changed from 8mm to 14mm, and the fiber denier (g/9000 m): 12. total fiber denier (g/9000 m): 28000 filter tip filter material (density: 0.122 g/cm) ³ Hardness: 88%) to single fiber denier (g/9000 m): 8. total fiber denier (g/9000 m): 28000 filter tip filter material (density: 0.119 g/cm) ³ Hardness: 89%), the non-combustion heating type flavor aspirator of reference example 6b was fabricated by the same method as the non-combustion heating type flavor aspirator of reference example 1 b. The ventilation resistance of the filter section of the non-combustion heating type flavor aspirator in the long axis direction is 1.69mmH ₂ O/mm。

Reference example 7b

A non-combustion heating type flavor aspirator of reference example 7b was produced in the same manner as the non-combustion heating type flavor aspirator of reference example 1b except that a flavor capsule containing menthol was disposed inside a filter medium, menthol was added to the filter medium at a concentration of 6mg/12mm, the length of a center hole was changed from 12mm to 8mm, and the length of the filter medium was changed from 8mm to 12 mm. The density (density of the state of removing the perfume capsule), hardness and ventilation resistance in the long axis direction of the filter tip section of the non-combustion heating type perfume aspirator were 0.122g/cm ³ 、91％、2.48mmH ₂ O/mm。

Comparative example 2b

Compounding a menthol-containing flavor capsuleIs placed inside the filter medium, menthol is added to the filter medium at a concentration of 6mg/12mm, the length of the center hole is changed from 12mm to 8mm, the length of the filter medium is changed from 8mm to 12mm, and the filter medium is changed from single fiber denier (g/9000 m): 12. total fiber denier (g/9000 m): 28000 filter tip filter material (density: 0.122 g/cm) ³ Hardness: 88%) to single fiber denier (g/9000 m): 5.9, total fiber denier (g/9000 m): 35000 (density of the state excluding perfume capsules) of 0.152g/cm ³ Hardness: 94%) by the following procedure, except that the non-combustion heating type flavor aspirator of comparative example 2b was produced in the same manner as the non-combustion heating type flavor aspirator of reference example 1 b. The ventilation resistance in the longitudinal direction of the filter tip section of the non-combustion heating type flavor aspirator was 6.23mmH ₂ O/mm。

Comparative example 3b

From single fiber denier (g/9000 m): 12. total fiber denier (g/9000 m): 28000 filter tip filter material (density: 0.122 g/cm) ³ ) Change to single fiber denier (g/9000 m): 20. total fiber denier (g/9000 m): 25000 filter plug (density 0.113 g/cm) ³ Hardness: 85%) a non-combustion heating type flavor aspirator of comparative example 3b was fabricated by the same method as the non-combustion heating type flavor aspirator of reference example 1 b. The ventilation resistance of the filter section of the non-combustion heating type flavor aspirator in the long axis direction is 0.80mmH ₂ O/mm. The non-combustion heating type flavor aspirator of comparative example 3b did not obtain sufficient hardness, and thus the conveyance amount was not evaluated as described later.

The production conditions and characteristics of the non-combustion heating type flavor aspirator in each of the above-mentioned reference examples and comparative examples are summarized in Table 5.

< evaluation of delivery amount >

The non-combustion heating type flavor aspirators produced in reference examples 1b to 7b and comparative examples 1b to 3b were subjected to a smoking test, and the amounts of components produced by heating were evaluated.

The smoking test was performed under the following conditions with reference to Canadian Intense Smoking (CIR).

After the non-combustion heating type flavor aspirator was inserted, the temperature of the heater was raised to 295℃within 21 seconds, lowered to 260℃within 5 seconds, and maintained at 260℃until the end of the evaluation (about 330 seconds) by using a heating device for peripheral heating. Then, in the smoking test, automatic smoking was performed using a single automatic smoking machine manufactured by Borgwaldt company at a flow rate of 55cc/2 seconds and a smoking interval of 30 seconds. At this time, the opening provided in the cooling section was 25.5mm from the end on the suction port end side of the area where the non-combustion heating type flavor aspirator contacted with the heating device. The mainstream smoke generated in the smoking test was collected in a Cambridge filter (Cambridge pad), 12 smoking operations were performed for reference examples 1b to 6b and comparative example 1b, 10 smoking operations were performed for reference examples 7b and 8b and comparative examples 2b and 3b, the Cambridge filter was taken out, 10ml of ethanol was used for extraction, and the amounts of the components in the mainstream smoke collected by each smoking operation were measured by GC-MS.

In the non-combustion heating type flavor aspirators of reference examples 1b to 9b and comparative example 1b, the amounts of each component of nicotine and glycerin are shown in tables 6 and 7 and fig. 14 to 17 below as an index of the component amounts in the mainstream smoke obtained by the above measurement. Specifically, fig. 14 shows the results of reference examples 1b and 3b and comparative example 1b (study of the effect of no capsules, no menthol, length of center hole: length of filter segment=12:8), fig. 15 shows the results of reference example 7b and comparative example 2b (study of the effect of capsules, menthol, length of center hole: length of filter segment=8:12), fig. 16 shows the results of reference examples 2b and 4b (study of the effect of capsules, menthol, length of center hole: length of filter segment=12:8), and fig. 17 shows the results of reference examples 5b and 6b (study of the effect of single fiber denier without capsules, menthol, length of center hole: length of filter segment=6:14). The above evaluation was performed after the flavor capsule was broken for the reference example and the comparative example to which the capsule addition was performed.

/>

As is clear from tables 4 and 5 and fig. 14 to 17, the non-combustion heating type flavor aspirator having a single fiber denier of 8 or more and 12 or less is excellent from the viewpoint of the delivery amount even in any of nicotine and glycerin, which are indexes of the component amount of the mainstream smoke, compared to the non-combustion heating type flavor aspirator having a short fiber denier of out of this range, regardless of the presence or absence of the addition of the flavor capsule to the filter medium and the presence or absence of the addition of menthol.

Reference example 1c

The non-combustion heating type fragrance aspirator shown in fig. 18 was prepared. The outer diameter was 7mm and the overall length was 55mm, and the dimensions of each section were as follows.

A tobacco-containing segment: 20mm of

And (3) a cooling section: 20mm of

A mouthpiece section: 15mm of

The following wound packaging materials were prepared.

Aluminum foil A1: the axial length of the non-combustion heating type flavor aspirator is 15mm, and the thickness is 30 μm

Aluminum foil A2: the axial length of the non-combustion heating type flavor aspirator is 22mm and the thickness is 30 μm

Laminating paper AP: laminate of paper with axial length of 15mm and thickness of 50 μm and aluminum foil with thickness of 15 μm for non-combustion heating type flavor aspirator

The non-combustion heating type flavor aspirator was wound and packed using each winding and packing material. Table 8 shows the position of the upstream end of the wound package material with the upstream end of the non-combustion heating type flavor aspirator as a reference.

The tobacco shred side end of the non-combustion heating type flavor aspirator was inserted into the heating device shown in fig. 19. The tobacco-containing segment is heated to 295 deg.c, at which point a portion of the tobacco-containing segment 301 is heated with a heater. Then, the tobacco is subjected to a smoking test using a smoking machine. Specifically, automatic smoking was performed using an automatic smoker (LM-1 manufactured by Borgwaldt KC Co.) under conditions of a smoking capacity of 27.5 ml/sec, a smoking time of 2 sec/puff, a smoking frequency of 2 puffs/min, and 8 puffs for the sample.

The smoked samples were cooled to room temperature for the fracture test. An outline of the test is shown in fig. 22. In the figure, P is a plunger, and B is a pedestal. The travel distance, maximum load and fracture conditions of the plungers are summarized in table 8.

Comparative example 1c

A non-combustion heating type flavor aspirator was prepared in the same manner as in reference example 1c except that the wrapping material was not wrapped around the wrapping material. The flavor aspirator before the smoking test was subjected to the breaking test in the same manner as in reference example 1 c. In addition, a non-combustion heating type flavor aspirator was prepared in the same manner as in reference example 1 c. The flavor aspirator without winding the wrapping material was subjected to the smoking test and then to the breaking test by the same method as in reference example 1 c. The results are shown in Table 8.

TABLE 8

* Number of samples = 3/level

Number of samples = 2/level

According to the results of comparative example 1c, the tobacco-containing segment before heating did not break, and had resistance to breaking, but it was clear that the tobacco-containing segment after heating broken with little force. On the other hand, in comparative example 1c, in the case of the force (1.61N) required for breaking the heated tobacco-containing segment, the heated tobacco-containing segment in reference example 1c was not broken. That is, for the tobacco-containing segment of reference example 1c, a very large force is required in order to fracture it. The average distance is an average distance of movement of the plunger until the sample breaks, and is an index of the degree of toughness to which the sample is deflected without breaking. As a result of comparing reference example 1c with comparative example 1c, both the average distance and the average load were high as those of reference example 1 c. It was revealed that the tobacco-containing segment of reference example 1c sufficiently exhibited an effect of suppressing fracture.

[ measurement of Smoke amount ]

The smoking test was performed under the above conditions using an automatic smoker, and the smoke amount per 1 puff was measured. Wherein the heating temperature was 295 ℃. Specifically, the light transmittance of the smoke discharged from the smoking machine without passing through the filter tip was detected by using the photosensor, and the smoke amount was measured. In a general smoke amount measurement, a trapping method is used in which smoke components are trapped in a glass fiber filter by suction and weighed. However, this method requires a relatively complicated operation and is difficult to rapidly measure in real time. Therefore, in the present embodiment, a measurement system using a photosensor is newly constructed and used. In order to verify the accuracy of the measurement system, a commercially available product uses a plomtech+ (registered trademark) (manufactured by japan tobacco industry corporation) as an aerosol generation source, and the accuracy of the measurement system itself was verified in a relationship of a voltage value to a constant smoke amount. As a result, since σ0.005V (CV value is less than 2%) was obtained, it was confirmed that the system had sufficient accuracy in data evaluation.

[ correlation of the smoke amount measurement value with the actual smoke amount ]

In order to investigate the relationship between the smoke amount measurement value (sensor voltage value) and the feeling of the smoke amount, sensory evaluation based on the smoke amount of the panelist was performed. The panelists were 6 persons who had sufficiently trained the sensory evaluation of the smoke amount, and the sensory evaluation of a fixed smoke amount was performed using a commercially available product PloomS (registered trademark) (manufactured by japan tobacco industry co., ltd.) as an aerosol generation source based on the following evaluation criteria. Meanwhile, the system is used for measuring the smoke quantity, and the correlation is verified. In particular, verification was based on weber-fishena law where there is a logarithmic correlation between sensation and stimulus. The results are shown in FIG. 24.

< evaluation criterion >

0: no smoke at all

1: little smoke appears

2: some smoke appears

3: smoke appearance

4: a large amount of smoke appears

5: the appearance of very much smoke

From the results, it was found that there was a highly accurate correlation between the sensor voltage value and the smoke perception as an evaluation of a certain smoke amount (R ² > 0.95). From this, it is found that the sensor voltage value based on the measurement system described above can be accurately substituted for the sensory evaluation.

Reference example 2c

A non-combustion heating type flavor aspirator of a wound package material was prepared in the same manner as in reference example 1 c. The smoke amount was measured for each flavor aspirator as described above. The voltage value from the light sensor reflects the concentration of smoke and can be recorded in real time with a data recorder. The difference between the maximum value of the voltage value per 1 puff and the base line was taken as the smoke amount. The results are shown in FIG. 23. The difference in voltage value of 0.05V is a level at which the panel can appropriately recognize the difference in smoke amount. In order to statistically verify the deviation of the data, the standard deviation was calculated for each suction value of the comparative example and the reference example, and the average value was obtained. As a result, the average value was 0.04V, and it was confirmed that the reference examples were different from the comparative examples, particularly after 3 times of suction.

Comparative example 2c

A non-combustion heating type flavor aspirator was prepared in the same manner as in reference example 1c except that the wrapping material was not wrapped. The smoking test was performed in the same manner as in reference example 2c, and the amount of smoke drawn each time was determined. The results are shown in FIG. 23.

As shown in the figure, in the reference example, since the heat from the heater was sufficiently transferred to the tobacco-containing section, the effect of the increase in total smoke amount was confirmed. Wherein the tobacco-containing section of the wrapped wrapper using A2 has a significant increase in smoke content and a small attenuation. That is, the tobacco-containing segment is capable of achieving an increase in total smoke volume. It is assumed that this is because the wrapping material of A2 can sufficiently impart the heat supplied to the tobacco shreds, and therefore the tobacco shreds located at a position away from the heater can be effectively heated.

Claims

1. A tobacco sheet for a non-combustion heating type flavor inhaler, comprising a tobacco powder having a cumulative 90% particle diameter (D90) of 200 [ mu ] m or more in a volume-based particle size distribution measured by a dry laser diffraction method.

2. The tobacco sheet for a non-combustion heating type flavor inhaler according to claim 1, wherein,

the tobacco powder is at least one tobacco raw material selected from tobacco leaves, veins and residual stems.

3. The tobacco sheet for a non-combustion heating type flavor inhaler according to claim 1 or 2, wherein,

the proportion of the tobacco powder contained in 100 mass% of the tobacco sheet is 45 to 95 mass%.

4. The tobacco sheet for a non-combustion heating type flavor inhaler according to any one of claim 1 to 3, wherein,

the tobacco sheet further comprises an aerosol generator.

5. The tobacco sheet for a non-combustion heating type flavor inhaler of claim 4, wherein,

the aerosol generating agent is at least one selected from glycerol, propylene glycol and 1, 3-butanediol.

6. The tobacco sheet for a non-combustion heating type flavor inhaler according to claim 4 or 5, wherein,

the proportion of the aerosol-generating agent contained in 100 mass% of the tobacco sheet is 4 to 50 mass%.

7. The tobacco sheet for a non-combustion heating type flavor inhaler according to any one of claims 1 to 6, wherein,

the tobacco sheet further comprises a forming agent.

8. The tobacco sheet for a non-combustion heating type flavor inhaler of claim 7, wherein,

the molding agent is at least one selected from polysaccharides, proteins and synthetic polymers.

9. The tobacco sheet for a non-combustion heating type flavor inhaler according to claim 7 or 8, wherein,

the proportion of the molding agent contained in 100 mass% of the tobacco sheet is 0.1 to 15 mass%.

10. A non-combustion heating type flavor aspirator comprising a tobacco-containing segment comprising the non-combustion heating type flavor aspirator tobacco sheet according to any one of claims 1 to 9.

11. The non-combustion heated flavor aspirator of claim 10, wherein,

the non-combustion heated flavor aspirator further comprises a mouthpiece section,

the tobacco-containing segment comprises: a first section containing an aerosol-generating agent and a second section containing the non-combustion heated flavor-smoking tobacco sheet,

the mouthpiece section comprises: a cooling section and a filter section.

12. The non-combustion heated flavor aspirator of claim 11, wherein,

the first section includes a cylindrical packaging material, and a nonwoven fabric formed of plant fibers filled in the packaging material, and the nonwoven fabric includes the aerosol generating agent.

13. The non-combustion heated flavor aspirator of claim 10, wherein,

the non-combustion heating type flavor aspirator is rod-shaped, and further comprises a cigarette holder section,

the mouthpiece section is provided with a filter section having a filter material,

14. The non-combustion heated flavor aspirator of claim 13, wherein,

the density of the filter tip filter material is 0.09g/cm ³ Above and 0.14g/cm ³ The following is given.

15. The non-combustion heated flavor aspirator of claim 10, wherein,

the non-combustion heating type flavor aspirator further comprises:

adjacent member adjacent to the tobacco-containing segment, and

wrapping around a wrapping material of the tobacco-containing segment or wrapping around a wrapping material of the tobacco-containing segment and the adjacent member,

16. The non-combustion heated flavor aspirator of claim 15, wherein,

the high heat transfer portion wraps around the tobacco-containing section from near the downstream end to near the upstream end of an adjacent component.

17. A non-combustion heated flavor pumping system, comprising:

the non-combustion heating type flavor aspirator according to any one of claims 10 to 16, and

a heating device for heating the tobacco-containing section.