KR20240046623A - Tobacco sheet for non-combustion heating type flavor inhaler, non-combustion heating type flavor inhaler, and non-combustion heating type flavor inhalation system - Google Patents

Abstract

The present invention provides a tobacco sheet for a non-combustible heated flavor inhaler comprising a fibrous material.

Description

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

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

In combustion type flavor inhalers (cigarettes), flavor is obtained by burning tobacco filling including leaf tobacco or tobacco sheets. For example, Patent Document 1 discloses a tobacco sheet used in a combustion type flavor inhaler. As an alternative to the combustion-type flavor inhaler, a non-combustion heating type flavor inhaler has been proposed in which flavor is obtained by heating a flavor source such as a cigarette sheet instead of burning it. The heating temperature of the non-combustion heating type flavor inhaler is lower than the combustion temperature of the combustion type flavor inhaler, for example, about 400°C or lower. In this way, since the heating temperature of the non-combustion heating type flavor inhaler is low, an aerosol generator can be added to the flavor source in the non-combustion heating type flavor inhaler from the viewpoint of increasing the amount of smoke. The aerosol generator is vaporized by heating and generates an aerosol. Since the aerosol is supplied to the user along with flavor components such as tobacco components, the user can obtain sufficient flavor.

The non-combustion heated flavor inhaler may include, for example, a tobacco-containing segment filled with a tobacco sheet, a cooling segment, and a filter segment. The axial length of the tobacco-containing segment of a non-combustion heating type flavor inhaler is usually shorter than the axial length of the tobacco-containing segment of a combustion type flavor inhaler in relation to the heating heater. Therefore, in the non-combustion heating type flavor inhaler, a large amount of tobacco sheets are filled in the section of the short tobacco-containing segment to ensure the amount of aerosol generated during heating. In order to fill a large amount of tobacco sheets within a short period, tobacco sheets with low bulkiness, that is, high density, are usually used in non-combustion heating type flavor inhalers. In addition, the expansion property is a value representing the volume when a piece of a tobacco sheet of a certain mass is compressed at a certain pressure for a certain time. For example, Patent Document 2 discloses a tobacco sheet used in a non-combustion heating type flavor inhaler.

Japanese Patent Publication Showa 60-45914 Japanese Patent Publication No. 5969923

However, the present inventors and others have found that when considering the heating method and the heating capacity of the heater and the generation of aerosol, the total heat capacity of the tobacco-containing segments increases when a tobacco sheet with low swelling (high density) is used, so the heating method and heater Depending on the capacity, it was found that the tobacco sheets filled with tobacco-containing segments did not contribute sufficiently to aerosol generation. In order to solve this problem, it is conceivable to reduce the total heat capacity of the tobacco-containing segment.

In order to reduce the total heat capacity of the tobacco-containing segments, the present inventors and others studied (1) reducing the specific heat of the tobacco raw material contained in the tobacco sheet, and (2) using a tobacco sheet with high swelling (low density). . However, since it is difficult to reduce the specific heat of the tobacco raw material itself with respect to (1), it was considered effective to reduce the total heat capacity of the tobacco-containing segments through (2). Therefore, there is a need to develop a tobacco sheet with high expansion properties (low density) that can be suitably used in a non-combustion heating type flavor inhaler.

The purpose of the present invention is to provide a tobacco sheet for a non-combustion heating type flavor inhaler with high expansion properties, a non-combustion heating type flavor inhaler comprising the tobacco sheet, and a non-combustion heating type flavor inhalation system.

The present invention includes the following embodiments.

Mode 1

A tobacco sheet for a non-combustible heated flavor inhaler comprising a fiber-like material.

Mode 2

The sheet according to aspect 1, further comprising dry tobacco material and an aerosol generator, and comprising dry tobacco material having a water content of greater than 5% by mass and less than or equal to 7.5% by mass.

Mode 3

The sheet according to Embodiment 2, wherein the aerosol generator is a mixture of glycerin and propylene glycol.

Mode 4

The sheet according to Embodiment 1, further comprising dry tobacco material and less than 20% by mass of an aerosol generator, and comprising dry tobacco material having a moisture content of 3 to 5% by mass.

Mode 5

The dry tobacco filler according to Embodiment 4, wherein the aerosol generator is a mixture of propylene glycol and glycerin.

Mode 6

A tobacco-containing segment comprising the sheet according to any one of aspects 1 to 5.

A non-combustion heating type flavor aspirator having a.

Mode 7

A non-combustion heating type flavor inhaler according to Embodiment 6,

Heating device for heating the tobacco-containing segments

A non-combustion heated flavor aspiration system comprising a.

According to the present invention, it is possible to provide a tobacco sheet for a non-combustion heating type flavor inhaler with high expansion properties, a non-combustion heating type flavor inhaler comprising the tobacco sheet, and a non-combustion heating type flavor inhalation system.

Fig. 1 is a cross-sectional view showing an example of a non-combustion heating type flavor inhaler according to the present embodiment.
Figure 2 is an example of the non-combustion heating type flavor aspiration system according to the present embodiment, (a) the state before inserting the non-combustion heating type flavor aspirator into the heating device, (b) the non-combustion heating type flavor aspirator being inserted into the heating device. This is a cross-sectional view showing the state of insertion and heating.
Figure 3 is a diagram schematically showing the production of dried tobacco filler.
Figure 4 is a perspective view showing an example of a non-combustion heating type flavor aspirator.
Figure 5 is a diagram showing the internal structure of the aerosol generating device.
Figure 6 is a perspective view showing an example of a cigarette pack in a closed state.
Figure 7 is a perspective view showing the cigarette pack of Figure 5 in an open state.
Figure 8 is a graph showing the relationship between the heating time of a microwave oven and the moisture content of the tobacco filling material and the relationship between the heating time of the microwave oven and the surface temperature of the tobacco filling material.
Figure 9 is a graph showing the relationship between the amount of silica gel and the moisture content of the tobacco filler.
Figure 10 is a graph showing the relationship between the moisture content of the tobacco filler and the mainstream smoke temperature and the relationship between the moisture content of the tobacco filler and the tip temperature.
Figure 11 is a graph showing the relationship between the moisture content of the tobacco filler and the nicotine content in the tobacco filler.
Figure 12 is a graph showing the relationship between the water content of the tobacco filler and the content of glycerin in the tobacco filler.
Figure 13 is a graph showing the relationship between the moisture content of the tobacco filler and the content of propylene glycol in the tobacco filler.
Figure 14 is a graph showing the relationship between the heating time of a microwave oven and the moisture content of the tobacco filling material and the relationship between the heating time of the microwave oven and the surface temperature of the tobacco filling material.
Figure 15 is a graph showing the relationship between the amount of silica gel and the moisture content of the tobacco filler.
Figure 16 is a graph showing the relationship between the moisture content of the tobacco filler and the mainstream smoke temperature and the relationship between the moisture content of the tobacco filler and the tip temperature.
Figure 17 is a graph showing the relationship between the moisture content of the tobacco filler and the nicotine content in mainstream smoke.
Figure 18 is a graph showing the relationship between the moisture content of the tobacco filler and the glycerin content in mainstream smoke.
Figure 19 is a graph showing the relationship between the moisture content of the tobacco filler and the content of propylene glycol in mainstream smoke.
Figure 20A is a graph showing the relationship between the content of the aerosol generator in the tobacco filler and the content of the component in mainstream smoke.
Figure 20b is a graph showing the relationship between the content of glycerin in the tobacco filler and the content of components in mainstream smoke.
Figure 21A is a graph showing the relationship between the content of the aerosol generator in the tobacco filler and the content of the component in mainstream smoke.
Figure 21b is a graph showing the relationship between the content of propylene glycol in the tobacco filler and the content of components in mainstream smoke.

[Cigarette sheet for non-combustible heated flavor inhaler]

The tobacco sheet (hereinafter also referred to as “cigarette sheet”) for a non-combustion heating type flavor inhaler according to the present embodiment contains a fiber-like material. Since the tobacco sheet according to the present embodiment contains a fibrous material, it is bulky and has a high expansion property. Therefore, by using the tobacco sheet according to the present embodiment, the total heat capacity of the tobacco-containing segment can be reduced, and the tobacco sheet filled in the tobacco-containing segment can sufficiently contribute to aerosol generation. In addition, the tobacco sheet according to the present embodiment preferably further contains tobacco raw materials, an aerosol generator, and a molding agent, and by keeping the mixing ratio of these within a predetermined range, the swelling properties of the tobacco sheet are further improved.

(fiber-like material)

The fibrous material contained in the tobacco sheet according to the present embodiment is not particularly limited as long as it is a material that has a fibrous shape such as fiber. Examples of the fibrous material include fibrous pulp, fibrous tobacco material, and fibrous synthetic cellulose. These may be used one type, or two or more types may be used together. Among these, from the viewpoint of fiber rigidity, fibrous pulp is preferable as the fibrous material.

The proportion of fibrous material contained in 100% by mass of the tobacco sheet is preferably 5 to 50% by mass. When the ratio of the fiber-like material is 5% by mass or more, a large volume capable of ensuring functionality can be realized. Additionally, when the ratio of the fiber-like material is 50% by mass or less, sufficient tobacco scent and aerosol can be generated during heating. The proportion of the fiber-like material is more preferably 5 to 47% by mass, more preferably 5 to 45% by mass, and particularly preferably 5 to 40% by mass.

(tobacco raw materials)

When the fiber-shaped material is other than the fiber-shaped tobacco material, the tobacco sheet according to this embodiment may further contain a tobacco raw material. The tobacco raw material is not particularly limited as long as it contains tobacco components, but examples include tobacco powder and tobacco extract. Examples of tobacco powder include leaf tobacco, midribs, remaining stems, etc. These may be used one type, or two or more types may be used together. These can be used as tobacco powder by cutting them into a predetermined size. As for the size of the tobacco powder, it is preferable that the cumulative 90% particle size (D90) in the volume-based particle size distribution measured by dry laser diffraction is 200 ㎛ or more from the viewpoint of further improvement in swelling properties. Examples of the tobacco extract include, for example, a tobacco extract obtained by crushing leaf tobacco, extracting water-soluble components from the leaf tobacco by mixing and stirring this with a solvent such as water, and drying and concentrating the obtained water extract under reduced pressure.

The proportion of tobacco raw materials contained in 100% by mass of the tobacco sheet is preferably 30 to 91% by mass. When the proportion of the tobacco raw material is 30% by mass or more, a tobacco aroma can be sufficiently generated during heating. Additionally, when the proportion of the tobacco raw material is 91% by mass or less, a sufficient amount of aerosol generator or molding agent can be contained. As for the ratio of the said tobacco raw material, it is more preferable that it is 50-90 mass %, it is still more preferable that it is 55-85 mass %, and it is especially preferable that it is 60-80 mass %.

(molding agent)

When the fibrous material is other than a fibrous molding agent such as fibrous synthetic cellulose, it is preferable that the tobacco sheet according to this embodiment further contains a molding agent from the viewpoint of securing the shape. Examples of molding agents include polysaccharides, proteins, and synthetic polymers. These may be used one type, or two or more types may be used together. Examples of polysaccharides include cellulose derivatives and polysaccharides of natural origin.

Cellulose derivatives include, for example, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxymethylethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, benzylcellulose, tritylcellulose, cyanoethylcellulose, carboxymethylcellulose, and carboxymethylcellulose. Cellulose ethers such as ethyl cellulose and aminoethyl cellulose; Organic acid esters such as cellulose acetate, cellulose formate, cellulose propionate, cellulose butyrate, cellulose benzoate, cellulose phthalate, and tosylcellulose; Inorganic acid esters such as cellulose nitrate, cellulose sulfate, cellulose phosphate, and cellulose xanthate can be mentioned.

Natural polysaccharides include, for example, guar gum, tara gum, locust bean gum, tamarind seed gum, pectin, gum arabic, gum tragacanth, gum karaya, gum gathi, arabinogalactan, gum flax seed, gum cassia, and psyllium seed. Polysaccharides derived from plants such as gum and yellow sea mugwort seed gum; Polysaccharides derived from algae such as carrageenan, agar, alginic acid, alginic acid propylene glycol ester, percellaran, and vulgaris extract; Polysaccharides derived from microorganisms such as xanthan gum, gellan gum, curdlan, pullulan, Agrobacterium succinoglycan, whelan gum, macrophomopsis gum, and Ramzan gum; Polysaccharides derived from crustaceans such as chitin, chitosan, and glucosamine; Starches such as starch, sodium starch glycolate, pregelatinized starch, and dextrin can be mentioned.

Examples of proteins include grain proteins such as wheat gluten and rye gluten. Examples of synthetic polymers include polyphosphoric acid, sodium polyacrylate, and polyvinylpyrrolidone.

When the tobacco sheet contains a molding agent, the proportion of the molding agent contained in 100% by mass of the tobacco sheet is preferably 0.1 to 15% by mass. When the ratio of the molding agent is 0.1% by mass or more, the mixture of raw materials can be easily molded into a sheet shape. In addition, when the proportion of the molding agent is 15% by mass or less, other raw materials can be sufficiently used to ensure the functions required for the tobacco-containing segment of the non-combustion heating type flavor inhaler. The proportion of the molding agent is more preferably 0.2 to 13 mass%, more preferably 0.5 to 12 mass%, and particularly preferably 1 to 10 mass%.

(Aerosol generator)

It is preferable that the tobacco sheet according to this embodiment further contains an aerosol generator from the viewpoint of increasing the amount of smoke when heated. Examples of aerosol generators include glycerin, propylene glycol, and 1,3-butanediol. These may be used one type, or two or more types may be used together.

When the tobacco sheet contains an aerosol generator, the proportion of the aerosol generator contained in 100 mass% of the tobacco sheet is preferably 5 to 50 mass%. When the proportion of the aerosol generator is 5% by mass or more, sufficient aerosol can be generated during heating from the viewpoint of quantity. Additionally, when the proportion of the aerosol generator is 50% by mass or less, sufficient aerosol can be generated during heating from the viewpoint of heat capacity. The proportion of the aerosol generator is more preferably 6 to 45% by mass, more preferably 8 to 40% by mass, and particularly preferably 10 to 30% by mass.

(Reinforcement agent)

When the fibrous material is other than a fibrous reinforcing agent such as fibrous pulp, the tobacco sheet according to this embodiment may further contain a reinforcing agent from the viewpoint of further improving physical properties. Examples of reinforcing agents include liquid substances with a surface coating function that form a film when dried, such as pulp and pectin suspension. These may be used one type, or two or more types may be used together.

When the tobacco sheet contains a reinforcing agent, the ratio of the reinforcing agent contained in 100 mass% of the tobacco sheet is preferably 0.1 to 20 mass%. When the ratio of the reinforcing agent is within this range, other raw materials can be sufficiently used to ensure the functions required for the tobacco-containing segment of the non-combustion heating type flavor inhaler. As for the ratio of the said reinforcing agent, it is more preferable that it is 0.2-18 mass %, and it is still more preferable that it is 0.5-15 mass %.

(Moisturizer)

The tobacco sheet according to this embodiment may further contain a moisturizing agent from the viewpoint of quality maintenance. Examples of moisturizing agents include sugar alcohols such as sorbitol, erythritol, xylitol, maltitol, lactitol, mannitol, and reduced maltose syrup. These may be used one type, or two or more types may be used together.

When the tobacco sheet contains a humectant, the ratio of the humectant contained in 100 mass% of the tobacco sheet is preferably 1 to 15 mass%. Within this range, other raw materials can be sufficiently used to ensure the functions required for the tobacco-containing segment of the non-combustion heated flavor inhaler. The ratio of the above-mentioned moisturizer is more preferably 2 to 12% by mass, and even more preferably 3 to 10% by mass.

(Other Ingredients)

The tobacco sheet according to the present embodiment contains, in addition to the fiber-like material, the tobacco raw material, the molding agent, the aerosol generator, the reinforcing agent, and the moisturizing agent, flavoring agents such as fragrance and flavoring agent, if necessary. It may include colorants, wetting agents, preservatives, diluents such as inorganic substances, etc.

(Paeng Sung-seong)

The expansion property of the tobacco sheet according to this embodiment is preferably 190 cc/100 g or more. When the expansion property is 190 cc/100 g or more, the total heat capacity of the tobacco-containing segment of the non-combustion heating type flavor inhaler can be sufficiently reduced, and the tobacco sheet filled in the tobacco-containing segment can contribute more to aerosol generation. The swelling property is more preferably 210cc/100g or more, and even more preferably 230cc/100g or more. The upper limit of the swelling range is not particularly limited, but may be, for example, 800cc/100g or less. In addition, the company recut the cigarette sheets into a size of 0.8 mm It is a value measured by manufacturing). The measurement is performed by placing 15 g of the recut tobacco sheet in a cylindrical container with an inner diameter of 60 mm and determining the volume when compressed for 30 seconds with a 3 kg load.

(Composition of cigarette sheet)

In this embodiment, a 'cigarette sheet' means the components constituting the tobacco sheet are molded into a sheet shape. Here, 'sheet' refers to a shape having a pair of approximately parallel main surfaces and side surfaces. The length and width of the tobacco sheet are not particularly limited and can be adjusted appropriately according to the filling mode. The thickness of the tobacco sheet is not particularly limited, but is preferably 100 to 1000 μm, and more preferably 150 to 600 μm in terms of balance between heat transfer efficiency and strength.

(Method of manufacturing cigarette sheets)

The tobacco sheet according to the present embodiment can be manufactured by known methods such as rolling and casting, for example. Details of various tobacco sheets manufactured by this method are disclosed in 'Tobacco Dictionary, Tobacco Research Center, March 31, 2009'.

<Rolling method>

Examples of a method for producing a tobacco sheet by the rolling method include a method including the following steps.

(1) A process of obtaining a mixture by mixing water, tobacco powder, an aerosol generator, a molding agent, and fibrous pulp.

(2) A process of putting the mixture into rolling rollers and rolling it.

(3) A process of peeling the rolled product on the rolling roller with a doctor knife, transferring it to a net conveyor, and drying it in a dryer.

When manufacturing a tobacco sheet by this method, the surface of each rolling roller may be heated or cooled depending on the purpose, and the rotation speed of each rolling roller may be adjusted. Additionally, by adjusting the spacing between each rolling roller, a tobacco sheet with a desired basis weight can be obtained.

<Cast method>

Examples of a method for producing a tobacco sheet by a casting method include a method including the following steps.

(1) A process of obtaining a mixture by mixing water, tobacco powder, an aerosol generator, a molding agent, and fibrous pulp.

(2) A process of spreading (casting) the mixture thinly and drying it to make a tobacco sheet.

When manufacturing tobacco sheets by this method, a process of removing some components such as nitrosamines by irradiating ultraviolet rays or You may add .

[Non-combustion heated flavor aspirator]

The non-combustion heating type flavor inhaler according to the present embodiment is provided with a tobacco-containing segment including the tobacco sheet according to the present embodiment. Since the non-combustion heating type flavor inhaler according to the present embodiment is provided with a tobacco-containing segment filled with the highly expanding tobacco sheet according to the present embodiment, the total heat capacity of the tobacco-containing segment can be sufficiently reduced, and the tobacco-containing The tobacco sheets filled in the segments can contribute more to aerosol generation.

An example of a non-combustion heating type flavor aspirator according to the present embodiment is shown in FIG. 1. The non-combustion heating type flavor aspirator 1 shown in FIG. 1 is a normal cooling device having a tobacco-containing segment 2 filled with the tobacco sheet according to the present embodiment and a perforation 8 on the circumference. It is provided with a segment (3), a center hole segment (4), and a filter segment (5). The non-combustion heating type flavor aspirator according to the present embodiment may include other segments in addition to the tobacco-containing segment, the cooling segment, the center hole segment, and the filter segment.

The axial length of the non-combustion heating type flavor aspirator according to the present embodiment is not particularly limited, but is preferably 40 mm or more and 90 mm or less, more preferably 50 mm or more and 75 mm or less, and even more preferably 50 mm or more and 60 mm or less. In addition, the circumferential length of the non-combustion heating type flavor inhaler is preferably 16 mm or more and 25 mm or less, more preferably 20 mm or more and 24 mm or less, and even more preferably 21 mm or more and 23 mm or less. For example, the tobacco containing segment may be 20 mm long, the cooling segment may be 20 mm long, the center hole segment may be 8 mm long, and the filter segment may be 7 mm long. Additionally, the length of the filter segment can be selected within the range of 4 mm or more and 10 mm or less. Additionally, the ventilation resistance of the filter segment at that time is selected to be 15 mmH ₂ O/seg or more and 60 mmH ₂ O/seg or less per segment. The length of these individual segments can be appropriately changed depending on manufacturing suitability, required quality, etc. Additionally, even if only a filter segment is placed on the downstream side of the cooling segment without using a center hole segment, it can function as a non-combustion heating type flavor aspirator.

(Tobacco-containing segment)

The tobacco-containing segment 2 is filled with the tobacco sheet according to the present embodiment in a wrapper (hereinafter also referred to as a "wrapper"). The method of filling the cigarette sheet into the wrapper is not particularly limited, but for example, the cigarette sheet may be wrapped with a wrapper, or the cigarette sheet may be filled into a normal wrapper. When the shape of the tobacco sheet has a longitudinal direction such as a rectangular shape, the tobacco sheet may be filled so that the longitudinal direction is each in an unspecified direction within the wrapper, and may be located in the axial direction of the tobacco-containing segment 2 or in the axial direction. The batteries may be aligned and charged in a direction perpendicular to each other. Additionally, the cigarette sheet may be installed in the form of a laminate of sheets, may be installed in a spirally wound form, or may be installed in a folded form like an accordion.

(cooling segment)

As shown in FIG. 1 , the cooling segment 3 may be comprised of a normal member 7 . The regular member 7 may be, for example, a paper tube obtained by processing thick paper into a cylindrical shape.

The regular member 7 and the mouthpiece lining paper 12, which will be described later, are provided with perforations 8 penetrating both. Due to the presence of perforations 8 , external air is introduced into the cooling segment 3 during suction. As a result, the aerosol vaporization component generated by heating the tobacco-containing segment 2 comes into contact with the outside air and is liquefied because its temperature is lowered, thereby forming an aerosol. The diameter (diameter length) of the perforation 8 is not particularly limited, but may be, for example, 0.5 mm or more and 1.5 mm or less. The number of perforations 8 is not particularly limited and may be one or two or more. For example, a plurality of perforations 8 may be provided on the circumference of the cooling segment 3.

The amount of external air introduced from the perforation 8 is preferably 85 volume% or less, and more preferably 80 volume% or less, relative to the total volume of gas sucked by the user. When the ratio of the amount of outside air is 85 volume% or less, reduction in flavor due to dilution by outside air can be sufficiently suppressed. In addition, this is also called ventilation ratio in another expression. The lower limit of the ventilation ratio range is preferably 55 volume% or more, and more preferably 60 volume% or more from the viewpoint of cooling properties.

Additionally, the cooling segment may be a segment comprising sheets of suitable construction material that are wrinkled, pleated, gathered or folded. The cross-sectional profile of such elements may represent randomly oriented channels. The cooling segment may also include a bundle of longitudinally extending tubes. Such cooling segments can be formed, for example, by pleating, gathering, or wrapping the folded sheet material into a wrapper.

The axial length of the cooling segment may be, for example, 7 mm or more and 28 mm or less, for example, 18 mm. Additionally, the cooling segment may be substantially circular in its axial cross-sectional shape, and its diameter may be, for example, 5 mm or more and 10 mm or less, for example, about 7 mm.

(center hole segment)

The center hole segment is composed of a filled layer including one or more hollow portions and an inner plug wrapper (inner wrapper) covering the filled layer. For example, as shown in FIG. 1, the center hole segment 4 is composed of a second filling layer 9 including a hollow portion and a second inner plug wrapper 10 covering the second filling layer 9. The center hole segment 4 has the function of increasing the strength of the mouthpiece segment 6. The second filled layer 9 is, for example, filled with cellulose acetate fibers at a high density, and has an inner diameter of ϕ1.0 mm or more, where a plasticizer containing triacetin is added in an amount of 6% by mass or more and 20% by mass or less relative to the mass of cellulose acetate, and hardened. It can be done with a rod of ϕ5.0mm or less. Since the second packed layer 9 has a high packing density of fibers, during suction, air or aerosol flows only through the hollow portion and hardly flows inside the second packed layer 9. Since the second filled layer 9 inside the center hole segment 4 is a fiber-filled layer, the tactile sensation from the outside during use rarely causes discomfort to the user. Additionally, the center hole segment 4 may not include the second inner plug wrapper 10 and may maintain its shape by thermoforming.

(filter segment)

The structure of the filter segment 5 is not particularly limited, but may be composed of a single or plural filled layer. The outside of the filling layer may be covered with one or multiple sheets of wrapper. The per-segment ventilation resistance of the filter segment 5 can be appropriately changed depending on the amount and material of the filler filled in the filter segment 5. For example, when the filling is cellulose acetate fiber, increasing the amount of cellulose acetate fiber filled in the filter segment 5 can increase ventilation resistance. When the filling is cellulose acetate fiber, the packing density of the cellulose acetate fiber may be 0.13 to 0.18 g/cm3. In addition, ventilation resistance is a value measured by a ventilation resistance meter (product name: SODIMAX, manufactured by SODIM).

The circumferential length of the filter segment 5 is not particularly limited, but is preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm. The axial length of the filter segment 5 can be selected from 4 to 10 mm, and is selected so that its ventilation resistance is 15 to 60 mmH ₂ O/seg. The axial length of the filter segment 5 is preferably 5 to 9 mm, and more preferably 6 to 8 mm. The cross-sectional shape of the filter segment 5 is not particularly limited, but may be, for example, circular, oval, polygonal, etc. Additionally, destructible capsules containing fragrance, fragrance beads, or fragrance may be added directly to the filter segment 5.

As shown in Fig. 1, the center hole segment 4 and the filter segment 5 can be connected by an outer plug wrapper (outer wrapper) 11. The outer plug wrapper 11 may be, for example, cylindrical paper. Additionally, the tobacco-containing segment 2, the cooling segment 3, and the connected center hole segment 4 and filter segment 5 can be connected by the mouthpiece lining paper 12. These can be connected, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper 12 and wrapping the three segments. Additionally, these segments may be divided and connected multiple times with a plurality of lining papers.

[Non-combustion heated flavor aspiration system]

The non-combustion heating type flavor aspiration system according to the present embodiment includes a non-combustion heating type flavor aspirator according to the present embodiment, and a heating device that heats the tobacco-containing segment of the non-combustion heating type flavor aspirator. The non-combustion heating type flavor aspiration system according to the present embodiment may have other configurations in addition to the non-combustion heating type flavor aspirator and the heating device according to the present embodiment.

An example of a non-combustion heating type flavor aspiration system according to the present embodiment is shown in FIG. 2. The non-combustion heating type flavor aspiration system shown in FIG. 2 includes a non-combustion heating type flavor aspirator 1 according to the present embodiment, and a heating device that heats the tobacco-containing segment of the non-combustion heating type flavor aspirator 1 from the outside ( 13) is provided.

Figure 2 (a) shows the state before inserting the non-combustion heating type flavor aspirator 1 into the heating device 13, and Figure 2 (b) shows the non-combustion heating type flavor aspirator 1 with the heating device ( 13) indicates the state of heating. The heating device 13 shown in FIG. 2 includes a body 14, a heater 15, a metal tube 16, a battery unit 17, and a control unit 18. The body 14 has a normal recess 19, an inner side of the recess 19, at a position corresponding to the tobacco-containing segment of the non-combustion heated flavor aspirator 1 inserted into the recess 19. A heater 15 and a metal pipe 16 are arranged. The heater 15 may be a heater based on electrical resistance, and power is supplied from the battery unit 17 in response to instructions from the control unit 18 that performs temperature control, thereby heating the heater 15. The heat generated from the heater 15 is transmitted to the tobacco-containing segment of the non-combustion heated flavor inhaler 1 through a metal tube 16 with high thermal conductivity.

In Figure 2(b), since it is schematically shown, there is a gap between the outer periphery of the non-combustion heating type flavor aspirator 1 and the inner periphery of the metal pipe 16, but in reality, For the purpose of efficiently transferring heat, it is preferable that there is no gap between the outer circumference of the non-combustion heating type flavor aspirator (1) and the inner circumference of the metal pipe (16). In addition, the heating device 13 heats the tobacco-containing segment of the non-combustion heating type flavor inhaler 1 from the outside, but may heat it from the inside.

The heating temperature by the heating device is not particularly limited, but is preferably 400°C or lower, more preferably 150°C or higher and 400°C or lower, and even more preferably 200°C or higher and 350°C or lower. In addition, the heating temperature refers to the temperature of the heater of the heating device.

In addition, the inventors claimed that, unlike smoking articles such as cigarettes, the non-combustible heated flavor inhaler does not diffuse the moisture in the tobacco material and the vapor generated from the aerosol generator by heating from the tip of the article, so that the user avoids the aerosol when inhaling. A new problem was discovered: feeling heat or the heat of the mouth end of an item. Therefore, as a first aspect, hereinafter, a non-combustion heating type flavor inhaler that makes it difficult for the user to feel the heat of the aerosol or the heat of the mouth end of the article during inhalation, and has excellent quality stability of the tobacco filling material, thereby increasing user satisfaction. The cigarette sheet provided will be explained.

In addition, as a second aspect, a cigarette sheet is described that provides a non-combustible heated flavor inhaler that makes it difficult for the user to feel the heat of the aerosol or the heat of the mouth end of the article when inhaling, and also provides an improved inhalation feeling.

[First mode]

The tobacco sheet of this embodiment is formed from a fibrous material and a dry tobacco filler containing dry tobacco material and an aerosol generator and having a moisture content greater than 5% by mass and less than or equal to 7.5% by mass. In this specification, the sheet may or may not contain components other than the fiber-like material and the dry tobacco filler. Additionally, an aerosol generating agent is sometimes referred to as an aerosol source. The amount of dry tobacco filler in the sheet is preferably less than 50 mass%, more preferably 5 to 45 mass%, and even more preferably 10 to 30 mass%. A filler is a material for filling tobacco segments.

<1. Dry Tobacco Filling>

According to one aspect of this embodiment, there is provided a sheet formed from a dry tobacco filler comprising fibrous material, dry tobacco material, and an aerosol generator, and having a water content of greater than 5% by mass and less than or equal to 7.5% by mass.

The 'dry tobacco filler' has a moisture content greater than 5 mass% and 7.5 mass% or less, preferably a moisture content of 5.1 to 7.5 mass%, more preferably 5.1 to 7.0 mass%, even more preferably 5.5 to 7.0 mass%. have In this specification, the moisture content of the dry tobacco filler refers to the ratio (mass %) of the mass of moisture to the total mass of the dry tobacco filler.

As shown in Figure 3, 'dried tobacco filler' can be obtained by drying 'tobacco filler used in existing non-combustion heated flavor inhalers (hereinafter also referred to as untreated tobacco filler)'. The untreated tobacco filler (T3a) contains a tobacco material (T1a) and an aerosol generator (T2), and typically has a moisture content of 10 to 15% by mass. The moisture content of the untreated tobacco filler also represents the mass ratio (% by mass) of moisture to the total mass of the untreated tobacco filler. When the untreated tobacco filler (T3a) is dried, the moisture in the tobacco material (T1a) is removed, thereby making it possible to prepare the dried tobacco filler (T3b). Therefore, in this specification, the tobacco material included in the 'dry tobacco filling' is called 'dry tobacco material'. When the untreated tobacco filler (T3a) is dried, the tobacco material (T1a) becomes dried tobacco material (T1b) by removing moisture, but the aerosol generator (T2) is not removed and most of it remains. The aerosol generator (T2) may be present on the surface of the tobacco material (T1a) or the dry tobacco material (T1b), or may penetrate into the tobacco material (T1a) or the dry tobacco material (T1b) and be incorporated into it. .

Specifically, the 'tobacco material (T1a)' included in the untreated tobacco filler (T3a) may be tobacco pieces ready to be mixed into tobacco products, and may be obtained by molding the raw material containing such tobacco pieces into an arbitrary shape. It may be a molded tobacco product. 'Tobacco pieces ready to be blended into tobacco products' generally undergo a drying process at the farm, followed by a long-term aging process of one to several years at a raw material factory, and then blending and regrinding at a manufacturing plant, etc. It can be prepared through various types of processing. Here, ‘tobacco fragments ready to be incorporated into tobacco products’ include deboned leaf fragments, core fragments, regenerated tobacco (i.e. leaf fragments, shredded fragments, core fragments, It may be a piece of tobacco material (tobacco material processed from fine powder, etc. into a reusable shape), or a mixture thereof.

The tobacco material (T1a) is preferably a molded tobacco product. In addition to tobacco pieces, the tobacco molded body may contain tobacco scraps generated at a raw material factory or manufacturing plant, such as leaf scraps and finely chopped scraps. The tobacco molded body may be molded into a size suitable for a non-combustion heating type flavor aspirator, or after molding a large-sized molded body, it may be cut into a size suitable for a non-combustion heating type flavor aspirator. The tobacco molded body is of any shape, for example, a cylinder or a square pillar, preferably a hexahedron, more preferably a rectangular prism, and even more preferably a square pillar.

A tobacco molded body refers to a molded article obtained by molding a raw material containing tobacco pieces into an arbitrary shape. Tobacco molded bodies are, for example, tobacco sheets or tobacco granules. The sheet can be formed by known methods such as sheet making method, casting method, and rolling method. ‘Tobacco granules’ refers to molded products obtained by molding raw materials containing tobacco pieces into granule shapes. Tobacco granules can be molded by known methods such as extrusion granulation, fluid bed granulation, and spray drying.

The tobacco molded body may contain at least one type of binder selected from the group consisting of, for example, pullulan and hydroxypropyl cellulose in order to maintain the shape of the molded body. The binder can be contained in an amount that exerts the effect as a binder and does not reduce the release of tobacco flavor components, and is usually contained in an amount of 0.5 to 15% by mass based on the total mass of the tobacco molded body. You can. Alternatively, if the molded tobacco product can maintain its shape even without using a binder, it does not need to contain a binder. If the binder inhibits the release of tobacco flavor components from the tobacco molded body, it is preferable not to include the binder.

The tobacco molded body may contain a humectant to adjust the moisture content. The humectant also functions as an aerosol generator. Polyhydric alcohols can be used as moisturizers, examples of which include glycerin, propylene glycol, sorbitol, xylitol, and erythritol. These polyhydric alcohols can be used one type or in combination of two or more types. When containing a humectant, it can usually be contained in an amount of 5 to 15% by mass based on the total mass of the tobacco molded body.

Additionally, the tobacco molded body may additionally contain a flavoring material, and the flavoring material may be solid or liquid. Examples of flavoring agents include menthol, spearmint, peppermint, cocoa, carob, coriander, licorice, orange peel rosehip, chamomile flower, lemon verbena, and sugars (fructose, sucrose, etc.). The flavoring agent can usually be contained in an amount of 0.5 to 45% by mass based on the total mass of the tobacco molded body.

An 'aerosol generator' is a source (liquid) from which dry tobacco filler generates vapor (gas) when mixed and heated in a non-combustible heated flavor inhaler. An 'aerosol generator' is a source (liquid) for generating a dispersion medium (gas) of an aerosol (mainstream smoke), and does not include fine particles (cigarette flavor components, etc.) in the aerosol. That is, tobacco flavor components migrate from the dry tobacco material into the vapor generated by heating the aerosol generating agent, and an aerosol (mainstream smoke) is generated. When the tobacco material is a molded tobacco product, the aerosol generator may be incorporated during the preparation of the molded tobacco product, as described above, or may be added after preparation of the molded tobacco product.

Aerosol generators include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The aerosol generator is preferably a mixture of glycerin and propylene glycol. In the case of a mixture of glycerin and propylene glycol, the mass ratio of glycerin and propylene glycol can be, for example, 80:20 to 97.5:2.5. The aerosol generator may be included in the untreated tobacco filler in an amount of, for example, 15 to 19% by mass, based on the untreated tobacco filler.

The dried tobacco filling may contain additional ingredients, such as the above-mentioned flavoring agents, as needed.

In this specification, the 'moisture content' of dried tobacco filler or the 'moisture content' of untreated tobacco filler can be obtained using GC-TCD as follows.

First, the dried tobacco filler is weighed, then a predetermined amount of methanol (reagent grade or higher) is added, sealed, and shaken (200 rpm) for 40 minutes. After leaving it overnight, it was shaken again for 40 minutes (200 rpm) and left to stand. The supernatant after standing is used as the measurement solution.

The measurement solution is applied to a GC-TCD, and the moisture is quantified using the calibration curve method. The conditions of GC-TCD can be, for example, the following conditions.

GC-TCD; 6890 gas chromatography manufactured by Hewlett Packard

column; HP Polapack Q (packed column) constant flow mode 20.0 mL/min

Injection; 1.0μL

Inlet; EPC purge packing column inlet heater; 230℃

gas; He total flow rate; 21.1mL/min

Oven; 160℃ (maintained for 4.5 min) → (60℃/min) → 220℃ (maintained for 4.0 min)

detector; TCD detector reference gas (He) flow rate; 20mL/min

Make up gas (He) 3.0mL/min

signal transmission rate; 5Hz

<2. Manufacturing method of dried tobacco filling>

As mentioned above, dried tobacco filler can be prepared by drying untreated tobacco filler to the desired moisture content. As described above, untreated tobacco filler contains tobacco material and an aerosol generator and typically has a moisture content of 10 to 15% by mass.

Specifically, the method for producing a dry tobacco filler involves drying a tobacco filler (i.e., untreated tobacco filler) containing a tobacco material and an aerosol generator to produce a dry tobacco filler having a moisture content greater than 5% by mass and less than or equal to 7.5% by mass. Includes dispensing.

Drying may be performed by drying the untreated tobacco filler itself, or by wrapping the untreated tobacco filler in a wrapper to manufacture a tobacco rod and then drying the tobacco rod, or by connecting the above-mentioned tobacco rod with a filter and heating it without combustion. After manufacturing the flavor inhaler, it may be performed by drying the non-combustion heating type flavor inhaler. Drying the untreated tobacco filler can remove some of the moisture in the tobacco filler without substantially removing the aerosol generating agent because the aerosol generating agent has a high boiling point.

Drying can be performed by any drying method as long as a dried tobacco filler having a desired moisture content can be obtained. For example, drying can be performed by microwave heating. In the case of microwave heating, the moisture content of the tobacco filler can be adjusted by adjusting the heating time (Figure 8). Microwave heating can typically be performed using a microwave oven. When a 500 W microwave oven is used, a heating time of, for example, 30 to 40 seconds can be adopted for 5 g of untreated tobacco filler (Figure 8).

Alternatively, drying can be performed by placing the untreated tobacco filler under sealed conditions with a desiccant. For example, drying can be performed at a temperature of 15 to 25°C over 10 to 15 days. As a desiccant, silica gel or the like can be used. When using a desiccant, the moisture content of the tobacco filler can be adjusted by adjusting the amount of the desiccant (FIG. 9). When silica gel is used as a desiccant, for example, 2 to 4 g of silica gel can be used per 5 g of untreated tobacco filler (Figure 9). Alternatively, drying may be performed by hot air drying or vacuum drying.

Drying is preferably performed under conditions where the surface temperature of the tobacco filler is 65°C or lower. Drying is more preferably performed under conditions where the surface temperature of the tobacco filler is between room temperature (i.e. 20°C) and 65°C. If the surface temperature of the tobacco filler becomes too high, the content of the aerosol generator contained in the tobacco filler is likely to decrease. Additionally, if the surface temperature of the tobacco filling becomes too high, the cell membrane or cell wall of the tobacco material is damaged, making it easier for tobacco flavor components to be released from the tobacco material, and there is a possibility that the discomfort to the user may become too strong when inhaling with a flavor inhaler.

The surface temperature of the tobacco filling refers to the temperature measured by a thermography camera, 'FLIR-C2' manufactured by FLIR System Inc.

Also, in this specification, the term 'tobacco filler' is used when it is desired to refer to tobacco filler before drying (i.e., untreated tobacco filler), tobacco filler during drying, and dried tobacco filler without distinguishing between them.

According to another aspect, a dried tobacco filler prepared by the above method is provided.

The dry tobacco filler prepared in this way can be mixed with the fiber material to form a sheet for a non-combustible heating type flavor inhaler. The sheet can be formed by a known method, and examples include the following method.

1) Untreated tobacco filler and fiber material are mixed, and a sheet is prepared by a regular method.

2) The dried tobacco filler is processed into powder, etc., and the fiber material is mixed to prepare a sheet.

<3. Non-combustible heated flavor aspirator>

The sheet formed from the above-described dry tobacco filler can be incorporated into a non-combustion heating type flavor aspirator (hereinafter also simply referred to as a flavor aspirator). That is, according to another aspect, a ratio comprising a sheet formed from the above-described dry tobacco filling, a tobacco rod including a wrapper wound around the dry tobacco filling, a filter, and a tipping member connecting the tobacco rod and the filter. A combustion heated flavor aspirator is provided. Here, the tipping member refers to a member that has the function of tip paper commonly used in cigarettes (that is, the function of connecting the cigarette rod and the filter). In addition to paper (i.e., tip paper), a sheet of any polymer material can be used as the tipping member.

Combining the non-combustion heated flavor aspirator and the heating device, this specification refers to the 'non-combustion heated flavor aspiration system' or simply the 'flavor aspiration system'. That is, according to another aspect, a non-combustion heating type flavor aspiration system is provided including the above-described 'non-combustion heating type flavor aspirator' and a heating device (hereinafter also referred to as an aerosol generating device) that heats this to generate an aerosol. .

As a non-combustion heated flavor suction system, for example, an electrically heated suction system is known including a flavor aspirator and a heating device for electrically heating it (see, for example, WO96/32854 and WO2010/110226).

Below, an example of this non-combustion heating type flavor aspiration system will be described with reference to FIG. 4 and the like. Figure 4 is a perspective view showing an example of a non-combustion heating type flavor aspiration system. Figure 5 is a diagram showing the internal structure of the aerosol generating device.

As shown in FIG. 4, the flavor aspiration system 100 includes a flavor aspirator 1 including a sheet formed from the above-described dry tobacco filler containing dry tobacco material and an aerosol generating agent, and heating this to produce an aerosol generating agent. It is equipped with an aerosol generating device 120 that atomizes and releases flavor components from the dried tobacco material.

The flavor aspirator 1 is a replaceable cartridge and has a columnar shape extending along one direction. The flavor aspirator 1 is configured to generate an aerosol containing a flavor component by being heated while inserted into the aerosol generating device 120.

The dimension of the flavor aspirator 1 in the longitudinal direction, that is, the length, is preferably 40 to 90 mm, more preferably 50 to 75 mm, and even more preferably 50 to 60 mm. The circumferential length of the flavor aspirator 1 is preferably 15 to 25 mm, more preferably 17 to 24 mm, and even more preferably 20 to 23 mm. In addition, in the flavor aspirator 1, the length of the tobacco-containing segment 2 may be 20 mm, the length of the branch pipe may be 20 mm, the length of the hollow plug may be 8 mm, and the length of the filter plug may be 7 mm, but the length of these individual segments may be determined by manufacturing suitability. , can be changed appropriately depending on the required quality, etc.

The fill comprises a sheet formed from the above-described dry tobacco filler comprising a fiber material, dry tobacco material, and an aerosol generating agent. From the viewpoint of the effect of the invention, it is preferable that the sheet is made of the above-described fiber material and ‘dry tobacco filler’. However, as long as the effect of the invention is achieved, there is no problem even if the sheet contains components other than those mentioned above.

The aerosol generator is heated to a predetermined temperature and generates vapor. As described above, aerosol generators include, for example, glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. As described above, the aerosol generator may be included in the untreated tobacco filler in an amount of, for example, 15 to 19% by mass based on the untreated tobacco filler.

The content of the filling in the flavor aspirator 1 is, for example, 200 to 400 mg when the tobacco-containing segment 2 has a circumference of 22 mm and a length of 20 mm, and is preferably 250 to 320 mg.

As shown in FIG. 5 , the aerosol generating device 120 includes an insertion hole 130 into which the flavor inhaler 1 can be inserted. That is, the aerosol generating device 120 includes an inner cylinder member 132 constituting the insertion hole 130. The inner cylinder member 132 may be made of a thermally conductive material such as aluminum or stainless steel (SUS).

Additionally, the aerosol generating device 120 may include a cover portion 140 that closes the insertion hole 130. The cover portion 140 is slideable and allows a state change between a state in which the insertion hole 130 is blocked and a state in which the insertion hole 130 is exposed (see FIG. 4).

The aerosol generating device 120 may include an air flow path 160 communicating with the insertion hole 130. One end of the air flow path 160 is connected to the insertion hole 130, and the other end of the air flow path 160 is connected to the outside (outside air) of the aerosol generating device 120 in a location different from the insertion hole 130. I'm in pain.

The aerosol generating device 120 may include a cover portion 170 that covers the end of the air flow path 160 on the side that communicates with the outside air. The cover portion 170 may cover the end of the air passage 160 on the side that communicates with the outside air, or may leave this end exposed.

Here, the cover portion 170 covers the end of the air passage 160, but does not airtightly block the air passage 160. That is, the cover portion 170 covers the air passage 160, but is spaced apart from the end of the air passage 160, and is configured to allow outside air to flow into the air passage 160 through the gap between them.

The user inserts the flavor inhaler 1 into the aerosol generating device 120 and performs an inhalation operation by biting the inlet portion. External air flows into the air passage 160 by the user's suction action. The air flowing into the air passage 160 passes through the flavor aspirator 1 in the insertion hole 130 and is guided into the user's oral cavity.

The aerosol generating device 120 may include a temperature sensor within the air passage 160 or on the outer surface of the wall portion constituting the air passage 160. The temperature sensor may be, for example, a thermistor or thermocouple. When the user inhales the inlet portion of the flavor aspirator 1, the inside of the air passage 160 is affected by the air flowing inside the air passage 160 from the cover portion 170 side toward the heater 30, which will be described later. The temperature or the temperature of the wall portion constituting the air passage 160 decreases. The temperature sensor can detect the user's suction action by measuring this temperature drop.

The aerosol generating device 120 includes a battery B, a control unit 20, and a heater 30. Battery B accumulates power used by the aerosol generating device 120. The battery B may be a rechargeable secondary battery. The battery B may be, for example, a lithium ion battery.

The heater 30 may be provided around the inner cylinder member 132. The space accommodating the heater 30 and the space accommodating the battery B may be separated from each other by a partition wall 180. As a result, air heated by the heater 30 can be prevented from flowing into the space housing the battery B. Accordingly, the temperature rise of the battery B can be suppressed.

The heater 30 preferably has a cylindrical shape capable of heating the outer periphery of the columnar flavor suction device 1. The heater 30 may be a film heater, for example. The film heater may include a pair of film-shaped substrates and a resistance heating element sandwiched between the pair of substrates. The film-like substrate is preferably made from a material excellent in heat resistance and electrical insulation, and is typically made from polyimide. The resistance heating element is preferably made from one or two or more metal materials such as copper, nickel alloy, chromium alloy, stainless steel, platinum rhodium, etc., and can be formed, for example, by a base material made of stainless steel. Additionally, in order to connect the resistance heating element to a power source via a flexible printed circuit (FPC), the connection portion and its lead portion may be plated with copper.

Preferably, a heat shrink tube is provided outside the heater 30. A heat shrinkable tube is a tube that shrinks in the radial direction by heat, and is made of, for example, thermoplastic elastomer. The heater 30 is pressed against the inner cylinder member 132 by the contraction action of the heat shrinkable tube. This increases the adhesion between the heater 30 and the inner cylinder member 132, thereby increasing the conduction of heat from the heater 30 to the flavor aspirator 1 via the inner cylinder member 132.

The aerosol generating device 120 may include a normal heat insulating material on the radial outside of the heater 30, preferably on the outside of the heat shrink tube. By blocking the heat of the heater 30, the insulation material can fulfill the role of preventing the outer surface of the case of the aerosol generating device 120 from reaching an excessively high temperature. Insulating materials can be made from aerogels, such as silica aerogel, carbon aerogel, and alumina aerogel. Airgel as an insulating material may typically be silica airgel, which has high insulating performance and relatively low manufacturing costs. However, the insulating material may be a fiber-based insulating material such as glass wool or rock wool, or a foam-based insulating material such as urethane foam or phenolic foam. Alternatively, the insulating material may be a vacuum insulating material.

An outer cylinder member 134 is provided outside the heat insulating material. The heat insulating material may be provided between the inner cylinder member 132 facing the flavor aspirator 1 and the outer cylinder member 134. The outer cylinder member 134 may be made of a thermally conductive material such as aluminum or stainless steel (SUS). It is preferable that the insulation material is provided in a closed space.

The control unit 20 may include a circuit board, a central processing unit (CPU), memory, etc. Additionally, the aerosol generating device 120 may include a notification unit for informing the user of various information under control by the control unit 20. The notification unit may be, for example, a light-emitting element such as a light-emitting diode (LED), a vibration element, or a combination thereof.

When the control unit 20 detects the user's startup request, it starts supplying power from the battery B to the heater 30. The user's startup request is made, for example, by the user's operation of a push button or slide switch, or the user's suction action. The user's startup request may be made by pressing the button 150. More specifically, the user's request to start may be made by pressing down the push button 150 when the cover portion 140 is open. Alternatively, the user's activation request may be made through detection of the user's suction motion. The user's suction action can be detected, for example, by a temperature sensor as described above.

<4. Packaging Products>

As described above, 'dried tobacco filler' can be produced by placing untreated tobacco filler under sealed conditions with a desiccant (refer to the above-mentioned section <2. Method for producing dried tobacco filler>). In this case, after manufacturing the 'dry tobacco filler' with the desired moisture content, fiber material may be added to form a sheet and distributed as a product in the form of a flavor inhaler containing this, or untreated tobacco filler and fiber material may be manufactured. It is placed under sealed conditions with a desiccant, but at a time when the desired moisture content has not yet been reached, the tobacco filler containing the fiber material may be formed into a sheet and distributed as a product in the form of a flavor inhaler containing the sheet. In the latter case, while the flavor inhaler containing the sheet formed from the tobacco filling is distributed as a commercial product, drying of the tobacco filling occurs and the sheet reaches a desired moisture content.

That is, according to another aspect, at least one non-combustible heated flavor inhaler comprising a package, a sheet formed from a fiber material contained in the package, and a tobacco filler containing a tobacco material and an aerosol generator, and the tobacco and a desiccant contained within the package in an amount necessary for the filler to reach an equilibrium moisture content of greater than 5 mass% and less than or equal to 7.5% by mass, wherein the tobacco filler has an equilibrium moisture content of greater than 5% by mass and less than or equal to 7.5% by mass within the package. Packaged products with moisture content levels are available. The non-combustion heating type flavor inhaler is preferably housed in a package under sealed conditions.

The 'package body' may be a packaging body that is used as a packaging body for tobacco products such as cigarettes in the technical field and has sealing properties. The package may be, for example, a cigarette pack commonly used as a cigarette package, that is, a cigarette pack composed of an outer pack made of a paper box with a hinged lid, and an inner pack made of an inner paper wrapping a bundle of cigarettes;

It may be a can container including a can container body, a can cover, and a metal inner cover that covers the opening of the can container body and blocks the interior space of the can container body from external air;

It may be a PTP packaging body (press through pack) used for packaging drugs, that is, a packaging body that accommodates the contents between a plastic portion including the accommodation space and a plate-shaped aluminum portion;

It may be an SP package (strip package) used for packaging drugs, that is, a package in which the peripheral edges of two heat-adhesive film sheets are bonded by heat sealing and the contents are accommodated between them; or

It may be a sealable plastic bag.

An example of a cigarette pack is shown in Figure 6, etc. Figure 6 shows the closed state of the cigarette pack, and Figure 7 shows the open state of the cigarette pack. The cigarette pack P4 includes a box P5 and a cover P6. The box P5 is provided with a box body P5a and an inner frame P5b. Box P5 includes an opening at its top. A cover P6 is connected to the opening end of the box P5 via a self hinge P7 at its rear edge. The cover P6 rotates around the self hinge P7 to open and close the opening end of the box P5. As shown in FIG. 7, inner frame P5b is partially inserted into box main body P5a, protrudes from the opening of box main body P5a, and forms the opening end of box P5. On the other hand, the cover P6 can be placed on the open end of the box P5 (that is, the protrusion of the inner frame P5b) to close the open end of the box P5. At this time, the opening of the cover P6 and the opening of the box body P5a coincide with each other. Cigarette packs are usually further provided with an inner pack (not shown) inside the box P5 made of an inner wrapper that wraps a bundle of cigarettes. Additionally, the cigarette pack typically further includes a film wrapping material (not shown) containing a tear-off tape on the outside of the box P5.

The 'non-combustion heating type flavor aspirator' to be accommodated in the package is a flavor aspirator containing the 'untreated tobacco filler (T3a)' shown in FIG. 3. The 'non-combustion heating type flavor aspirator' to be accommodated in the package may be a commercially available cigarette stick for a non-combustion heating type flavor aspiration system, or a product prepared for the existing non-combustion heating type flavor aspiration system. A flavor inhaler manufactured using tobacco filler (e.g., moisture content of 10 to 15% by mass) may be used.

The number of non-combustion heating type flavor aspirators accommodated in the package is at least one, for example, 40 or less. When the package is a cigarette pack, the number of non-combustion heating type flavor aspirators accommodated in the package is generally 10 to 20, for example, 20.

As the 'desiccant', a desiccant commonly used as a desiccant for food or medicine can be used, for example, silica gel or the like can be used. The desiccant is incorporated into the package in an amount necessary for the tobacco filler to reach an equilibrium moisture content of greater than 5% by mass and less than or equal to 7.5% by mass. The moisture content of the tobacco filler can be adjusted by adjusting the amount of desiccant. When using silica gel as a desiccant, in order to prepare a dried tobacco filler with an equilibrium moisture content of greater than 5% by mass and less than or equal to 7.5% by mass from untreated tobacco filler with a water content of about 14% by mass, for 5 g of tobacco filler, for example, 2 to 4 g of silica gel can be used.

In the packaging products described above, the moisture content of sheets formed from fiber materials and tobacco fillers changes over time. That is, immediately after the non-combustion heating type flavor inhaler is accommodated in the package, the water content of the sheet is almost the same as the water content of a sheet formed from the fiber material and the tobacco filler before drying. For example, the water content of the tobacco filler in the sheet is 10~ It is 15% by mass. Thereafter, as time passes after the non-combustion heating type flavor inhaler is accommodated in the package, drying of the sheet progresses due to the action of the desiccant, and the moisture content of the sheet decreases. Ultimately, the moisture content of the tobacco filler in the sheet reaches an equilibrium moisture content greater than 5 mass% and less than 7.5 mass%, preferably an equilibrium moisture content of 5.1 to 7.5 mass%, more preferably an equilibrium moisture content of 5.5 to 7.0 mass%.

In this way, in the above-mentioned packaged products, the tobacco filler changes over time, but all of 'tobacco filler before drying', 'tobacco filler during drying', and 'tobacco filler after drying' are collectively referred to as 'tobacco filler'. I call.

<5. Effect>

According to the present invention, if the moisture content of the tobacco filler is reduced to 7.5% by mass or less, the mainstream smoke temperature and the surface temperature of the tip paper can be reduced in a non-combustion heating type flavor inhaler including a sheet formed from the tobacco filler. This makes it difficult for the user to feel the heat of the aerosol or the heat of the mouth end of the article during suction.

Furthermore, according to the present invention, if the lower limit of the moisture content of the tobacco filler is set to a moisture content greater than 5% by mass, for example, a moisture content of 5.1% by mass or more, even after a drying process, the aerosol generator or tobacco flavor source (nicotine, etc.) in the tobacco filler is retained. The content can be maintained without reducing it. In this specification, the property of stably maintaining the aerosol generator or tobacco flavor source (such as nicotine) after drying without reducing the content of the aerosol generator or tobacco flavor source (e.g. nicotine) during drying of the tobacco filler is referred to as 'quality stability of the tobacco filler'. ' is called. 'Quality stability of tobacco fillers' is an important property for flavor inhalers because it is closely related to transferring the tobacco flavor source to the vapor generated by heating the aerosol generator and delivering it to the user.

From the above, by using as a filler a sheet formed from a tobacco filling with a moisture content reduced from more than 5 mass% to 7.5 mass% or less, preferably 5.1 to 7.5 mass%, the user can avoid the heat of the aerosol or the mouth end of the article when inhaling. It is possible to provide a non-combustible heated flavor inhaler that is difficult to feel the heat of and has excellent quality stability of the tobacco filling material.

[Second mode]

The tobacco sheet of this embodiment is formed from a fiber material, a dry tobacco filler containing dry tobacco material and less than 20% by mass of an aerosol generator, and having a moisture content of 3 to 5% by mass. The amount of dry tobacco filler in the sheet is as described in the first embodiment.

<1. Dry Tobacco Filling>

According to one aspect, a sheet formed from a fiber material and a dry tobacco filler comprising dry tobacco material and less than 20% by mass of aerosol generator and having a moisture content of 3 to 5% by mass is provided. The sheet can be used in a non-combustion heating type flavor inhaler. 'Dried tobacco filling' has a moisture content of 3.0 to 5.0 mass%, preferably 3.5 to 5.0 mass%, more preferably 4.0 to 5.0 mass%. In this specification, the moisture content of the dry tobacco filler refers to the ratio (mass %) of the mass of moisture to the total mass of the dry tobacco filler. Details of the dried tobacco filler other than moisture content are the same as described in the first aspect.

Aerosol generators include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The aerosol generator is preferably a mixture of glycerin and propylene glycol. In the case of a mixture of glycerin and propylene glycol, the mass ratio of glycerin and propylene glycol can be, for example, 80:20 to 97.5:2.5.

The aerosol generator is included in an amount of less than 20% by mass relative to the total mass of the dry tobacco filler. The amount of aerosol generator contained in the dry tobacco filler is less than 20% by mass, preferably 19% by mass or less, more preferably 15 to 19% by mass, based on the total mass of the dry tobacco filler.

When the aerosol generator is a mixture of glycerin and propylene glycol, propylene glycol is preferably contained in an amount of 3% by mass or less relative to the total mass of the dry tobacco filler. The amount of propylene glycol contained in the dried tobacco filler is preferably 3% by mass or less, more preferably 1 to 3% by mass.

In this specification, the 'amount of aerosol generating agent' contained in the dry tobacco filler can be obtained as follows. The dried tobacco filler is extracted in a predetermined amount of ethanol (10 mL to 100 mL, adjusted appropriately depending on the amount of dry tobacco filler), and the amount of aerosol generator (e.g., glycerin and propylene glycol) is measured using GC-MS. You can.

<2. Manufacturing method of dried tobacco filling>

The method for producing the dried tobacco filler in this embodiment is the same as described in the first embodiment. However, in this embodiment, it is preferable to perform drying as follows.

Specifically, the method for producing a dried tobacco filler is to dry a tobacco filler containing a tobacco material and an aerosol generator under conditions such that the surface temperature of the tobacco filler is 90° C. or lower, and 3 to 5% by mass of the tobacco filler is dried. It includes preparing a dry tobacco filler having a moisture content.

Drying may be performed by drying the untreated tobacco filler itself, or by wrapping the untreated tobacco filler in a wrapper to manufacture a tobacco rod and then drying the tobacco rod, or by connecting the above-mentioned tobacco rod with a filter and heating it without combustion. After manufacturing the flavor-absorbing article, the non-combustion heating type flavor-absorbing article may be dried. Drying the untreated tobacco filler can remove some of the moisture in the tobacco filler without substantially removing the aerosol generating agent because the aerosol generating agent has a high boiling point.

Drying can be performed by any drying method as long as a dried tobacco filler having a desired moisture content can be obtained. For example, drying can be performed under room temperature and humidity of 30% or less. Room temperature is typically a temperature in the range of 5 to 35°C. Drying can be performed under conditions of preferably a temperature of 5 to 35°C, more preferably 15 to 25°C, and preferably 10 to 30% humidity, more preferably 15 to 25% humidity.

Or, for example, drying can be performed by microwave heating. In the case of microwave heating, the moisture content of the tobacco filler can be adjusted by adjusting the heating time (Figure 14). Microwave heating can typically be performed using a microwave oven. When a 500 W microwave oven is used, a heating time of, for example, 40 to 60 seconds can be adopted for 5.0 g of untreated tobacco filler (FIG. 14).

Alternatively, drying can be performed by placing the untreated tobacco filler in the presence of a desiccant. Specifically, drying can be performed by placing the untreated tobacco filler under sealed conditions together with a desiccant. For example, drying can be performed at a temperature of 15 to 25°C over 10 to 15 days. As a desiccant, silica gel or the like can be used. When using a desiccant, the moisture content of the tobacco filler can be adjusted by adjusting the amount of the desiccant (FIG. 15). When silica gel is used as a desiccant, for example, 4 to 10 g of silica gel can be used per 5.0 g of untreated tobacco filler (Figure 15). Alternatively, drying may be performed by hot air drying or vacuum drying.

Drying can be performed under conditions where the surface temperature of the tobacco filler is 90°C or lower. Drying is preferably performed under conditions where the surface temperature of the tobacco filler is room temperature (i.e., 20°C) to 90°C. Drying is more preferably performed under conditions where the surface temperature of the tobacco filler is 65°C or lower. Drying is more preferably carried out under conditions where the surface temperature of the tobacco filler is between room temperature (i.e. 20°C) and 65°C. If the surface temperature of the tobacco filler becomes too high, the content of the aerosol generator contained in the tobacco filler is likely to decrease. In addition, if the surface temperature of the tobacco filling material becomes too high, the cell membrane and cell wall of the tobacco material are damaged, and tobacco flavor components are easily released from the tobacco material, and there is a possibility that stimulation to the user may become too strong when inhaling the flavor inhalation article. there is.

The surface temperature of the tobacco filling refers to the temperature measured by a thermography camera, a 'FLIR-C2' device manufactured by FLIR Systems, Inc.

The dry tobacco filler prepared in this way can be mixed with the fiber material to form a sheet for a non-combustible heating type flavor inhaler. The method of forming the sheet is the same as described in the first aspect.

<3. Non-combustible heated flavor aspirator>

The non-combustion heating type flavor aspirator and the non-combustion heating type flavor aspiration system in this embodiment are as described in the first embodiment.

<4. Packaging Products>

The packaged product in this embodiment is the same as described in the first embodiment, except that the tobacco filler is allowed to reach an equilibrium water content of 3 to 5% by mass in the package.

In this embodiment, as the 'desiccant', a desiccant commonly used as a desiccant for food or medicine can be used, for example, silica gel or the like can be used. The desiccant is contained in the package in an amount necessary for the tobacco filler to reach an equilibrium moisture content of 3 to 5% by mass. The moisture content of the tobacco filler can be adjusted by adjusting the amount of desiccant. When silica gel is used as a desiccant, in order to prepare a dried tobacco filler with an equilibrium moisture content of 3 to 5 mass% from untreated tobacco filler with a moisture content of about 14 mass%, for example, 4 to 10 g per 5.0 g of tobacco filler. Silica gel can be used.

In the packaging products described above, the moisture content of sheets formed from fiber materials and tobacco fillers changes over time. That is, immediately after the non-combustion heated flavor inhaler is accommodated in the package, the water content of the sheet is almost the same as the water content of a sheet formed from the fiber material and the tobacco filler before drying. For example, the water content of the tobacco filler in the sheet is 10~ It is 15% by mass. Thereafter, as time passes after the non-combustion heating type flavor inhaler is accommodated in the package, drying of the sheet progresses due to the action of the desiccant, and the moisture content of the sheet decreases. Finally, the moisture content of the tobacco filler in the sheet reaches an equilibrium moisture content of 3.0 to 5.0 mass%, preferably an equilibrium moisture content of 3.5 to 5.0 mass%, more preferably an equilibrium moisture content of 4.0 to 5.0 mass%.

<5. Effect>

According to the present invention, by reducing the moisture content of the tobacco filler to 3 to 5% by mass, the mainstream smoke temperature and the surface temperature of the tip paper can be reduced in a non-combustion heating type flavor inhaler including a sheet formed from the tobacco filler. This makes it difficult for the user to feel the heat of the aerosol or the heat of the mouth end of the article during suction.

In addition, according to the present invention, if the water content of the tobacco filler is reduced to 3-5% by mass, the amount of tobacco flavor source (nicotine, etc.) or the amount of aerosol (smoke amount) in mainstream cigarette smoke increases, thereby improving the inhalation feeling. You can.

Additionally, according to the present invention, when the content of the aerosol generator in the tobacco filler is set to less than 20% by mass, the following effects are obtained. When the aerosol in the tobacco filler vaporizes, heat of vaporization is lost. However, when the content of the aerosol generator in the tobacco filler is within the above range, the amount of heat of vaporization lost along with vaporization of the aerosol generator can be suppressed. Thereby, a decrease in the heating efficiency of the tobacco filling material can be suppressed. As a result, when the content of the aerosol generator in the tobacco filler is within the above range, compared to the case where it exceeds the above range, the components contained in the tobacco filler (e.g., glycerin, nicotine, etc.) are the dispersion medium of the aerosol (mainstream smoke). It can easily be converted into an aerosol dispersion medium, thereby improving the sense of inhalation.

From the above, by reducing the moisture content to 3 to 5% by mass and using a sheet formed from a tobacco filler with the content of the aerosol generator in the tobacco filler below 20% by mass as a filler, the heat of the aerosol when the user inhales is reduced. It is possible to provide a non-combustible heated flavor inhaler that makes it difficult to feel the heat of the mouth end of the product and has improved inhalation.

[Example]

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

[Example 1]

Tobacco lamina (leaf tobacco) was dry-pulverized with a Hosokawa Micron 'ACM' machine to obtain tobacco powder. For the tobacco powder in question, the cumulative 90% particle size (D90 ) was measured and was 200㎛.

Using the above tobacco powder as a tobacco raw material, a tobacco sheet was manufactured by a rolling method. Specifically, 77 parts by mass of the tobacco raw material, 12 parts by mass of glycerin as an aerosol generator, 1 part by mass of carboxymethyl cellulose as a molding agent, and fiber-like pulp (dry decomposition product of pulp manufactured by Canpo) as a fiber-like material. fibrillated article)) 10 parts by mass were mixed and kneaded in an extrusion molding machine. The kneaded product was molded into a sheet using two pairs of metal rolls and dried in a hot air circulation oven at 80°C to obtain a tobacco sheet. The cigarette sheet was shredded into a size of 0.8 mm x 9.5 mm using a shredder.

For the recarved tobacco sheets, swelling properties were measured. Specifically, the re-engraved tobacco sheet was left in a 60% air conditioning room at 22°C for 48 hours, and then the swelling was measured using 'DD-60A' (trade name, manufactured by Bovolborgvard). The measurement was performed by placing 15 g of the recut tobacco sheet in a cylindrical container with an inner diameter of 60 mm and determining the volume when compressed for 30 seconds with a load of 3 kg. The results are shown in Table 1. In addition, in Table 1, the swelling properties are expressed as an increase rate (%) of the swelling properties relative to the reference value, based on the swelling properties of Comparative Example 1 described later.

[Comparative Example 1]

Tobacco powder was prepared as in Example 1. Using the tobacco powder as a tobacco raw material, a tobacco sheet was manufactured by a rolling method. Specifically, 87 parts by mass of the tobacco raw material, 12 parts by mass of glycerin as an aerosol generator, and 1 part by mass of carboxymethyl cellulose as a molding agent were mixed and kneaded in an extrusion molding machine. The kneaded product was molded into a sheet using two pairs of metal rolls and dried in a hot air circulation oven at 80°C to obtain a tobacco sheet. The cigarette sheet was shredded into a size of 0.8 mm x 9.5 mm using a shredder. For the recarved tobacco sheets, swelling properties were measured in the same manner as in Example 1. The results are shown in Table 1.

[Table 1]

From Table 1, the tobacco sheet of Example 1, which is the tobacco sheet according to the present embodiment, had improved swelling properties compared to the tobacco sheet of Comparative Example 1 which did not contain a fiber-like material. Additionally, in Example 1, the tobacco sheet was manufactured by the rolling method, but even when the tobacco sheet was manufactured by the casting method, the swelling property was improved.

Below, the first embodiment will be described using Reference Example A.

[Reference Example A1] Moisture content of cigarette filling material

1-1. Manufacturing of flavor aspirator

Regarding the "Ploom S" dedicated cigarette stick manufactured by Nippon Tabaco Sangyo Co., Ltd. (Product name: Mevius Regular Taste Four Plum S), either (A) microwave drying or (B) silica gel drying is performed. It was done. As a result, the water content of the tobacco filler in the cigarette stick was reduced. The 'Ploom S' dedicated cigarette stick has the structure shown in FIG. 1.

The cigarette stick before the drying process contains 0.25 g of tobacco filler (i.e., a mixture of the tobacco molded body and the aerosol generator) per piece, the tobacco filler has a water content of 13.69% by mass, and in the tobacco filler, It contains 15.60% by mass of an aerosol generator. The aerosol generator is a mixture of glycerin and propylene glycol, and the mass ratio of glycerin and propylene glycol is 93.48:6.52.

Meanwhile, as a control, a cigarette stick dedicated to "Ploom S" manufactured by Nippon Tabaco Sangyo Co., Ltd. (Product name: Mobius Regular Taste Four Plum S) was placed in a 60% air conditioning room at 22°C for approximately 48 to 72 hours. It was harmonized.

(A) Microwave drying

A commercially available microwave oven (Twin bird, manufactured by Kogyo Co., Ltd., 'DR-D219W5' (2014), 50Hz) was used at 500W. Twenty cigarette sticks (tobacco filling; total 5.0 g) were heated in a microwave oven for a predetermined period of time. Heating times were 20 seconds, 40 seconds, 60 seconds, 80 seconds or 100 seconds. After heating, 20 cigarette sticks were placed together in a polypropylene (PP) chuck bag and sealed with an aluminum pouch bag. This produced a flavor inhaler. Immediately after manufacturing the flavor inhaler, the moisture content of the tobacco filler was measured.

(B) Silica gel drying

As silica gel, a commercially available product for food drying (manufactured by Toyota Kako Co., Ltd., 'HD' 1 g (blue)) was used. 20 cigarette sticks (tobacco filling; total 5.0 g) and a predetermined amount of silica gel were placed together in a polypropylene (PP) chuck bag, sealed with an aluminum pouch bag, and left for 3 hours. Drying was performed at room temperature (20°C). The amount of silica gel was 2g, 4g, 6g, 8g or 10g. This produced a flavor inhaler. Immediately after manufacturing the flavor inhaler, the moisture content of the tobacco filler was measured.

1-2. Analysis of moisture content of dried tobacco filling

The tobacco filler was taken out from the manufactured flavor aspirator and the control flavor aspirator, and the moisture content (mass %) of the tobacco filler was determined using GC-TCD as described above.

1-3. result

The relationship between the heating time of the microwave oven and the moisture content of the tobacco filling material and the relationship between the heating time of the microwave oven and the surface temperature of the tobacco filling material are shown in Figure 8. The relationship between the amount of silica gel and the moisture content of the tobacco filler is shown in Figure 9.

From the results in FIG. 8, the following can be seen. When the heating time of the microwave oven was increased, the moisture content of the tobacco filling decreased. Additionally, when the heating time of the microwave oven was increased, the surface temperature of the tobacco filling material increased. By using a heating time of 30 to 40 seconds in a 500 W microwave oven for 20 cigarette sticks (tobacco filling; 5.0 g in total), dry tobacco filling having a moisture content greater than 5 mass% and less than 7.5 mass% could be prepared. .

From the results in FIG. 9, the following can be seen. As the amount of silica gel increased, the moisture content of the tobacco filling decreased. By using 2 to 4 g of silica gel for 20 cigarette sticks (tobacco filler; total 5.0 g), it was possible to prepare a dry tobacco filler having a water content greater than 5 mass% and 7.5 mass% or less.

From these results, it can be seen that a dried tobacco filler having a desired water content can be prepared by changing the degree of drying by adjusting the heating time or the amount of desiccant.

[Reference Example A2] Mainstream smoke temperature and tip temperature

2-1. Analysis of mainstream smoke temperature and tip temperature

The flavor aspirator and the control flavor aspirator manufactured in Reference Example A1 were heated with a 'Ploom S' heating device (Nippon Tabaco Sangyo Co., Ltd.). The heating device has the structure shown in FIG. 5. After heating, the flavor aspirator was aspirated with an automatic aspirator.

After suction, the temperature of the mainstream smoke and the surface temperature of the mouth end of the flavor aspirator (hereinafter referred to as tip temperature) were analyzed.

(Temperature of mainstream smoke)

A thermocouple (product name: Toa Denki Co., Ltd., model number 'TI-SP-K') was installed at a position 7 mm downstream from the inlet end of the flavor aspirator, and the temperature of the mainstream smoke was measured every 0.1 second. The highest value during the measurement period was determined as the 'mainstream smoke temperature'.

(tip temperature)

On the surface of the tip paper, a thermocouple (manufactured by Doa Denki Co., Ltd., model number 'TI-SP-K') was installed at a position 5 mm upstream from the inlet end of the flavor aspirator, and the temperature of the mainstream smoke was measured every 0.1 seconds. did. The highest value during the measurement period was determined as 'tip temperature'.

2-2. result

The relationship between the moisture content of the tobacco filler and the mainstream smoke temperature and the relationship between the moisture content of the tobacco filler and the tip temperature are shown in Figure 10.

From the results in FIG. 10, the following can be seen. In both cases of microwave drying and silica gel drying, if the water content of the tobacco filler decreased, the mainstream smoke temperature could be decreased. In addition, in both cases of microwave drying and silica gel drying, when the water content of the tobacco filler decreased, the tip temperature could be decreased.

From these results, it can be seen that when a tobacco filler with a low moisture content is used in a flavor inhaler, it is difficult for the user to feel the heat of the aerosol or the heat of the mouth end of the article during inhalation. In addition, in order to sufficiently reduce the mainstream smoke temperature and tip temperature, it can be seen that the moisture content of the tobacco filler is preferably 7.5% by mass or less, and more preferably 7.0% by mass or less.

[Reference Example A3] Contents of nicotine, glycerin, and propylene glycol in cigarette filling materials

3-1. Analysis of nicotine, glycerin, and propylene glycol contents in cigarette fillings

For the flavor inhaler prepared in Reference Example A1 and the control flavor inhaler, the contents of nicotine, glycerin, and propylene glycol in the tobacco filler were measured.

The tobacco filling was taken out from the flavor aspirator, and the contents of nicotine, glycerin, and propylene glycol in the tobacco filling were determined as follows. The removed tobacco filling was extracted with a predetermined amount of ethanol (10 mL to 100 mL, appropriately adjusted depending on the amount of tobacco filling), and the amount of each component was measured using GC-MS.

3-2. result

The relationship between the moisture content of the tobacco filler and the nicotine content in the tobacco filler is shown in Figure 11. The relationship between the water content of the tobacco filler and the glycerin content in the tobacco filler is shown in Figure 12. The relationship between the water content of the tobacco filler and the content of propylene glycol in the tobacco filler is shown in Figure 13.

From these drawings, the following can be seen. In both cases of microwave drying and silica gel drying, the nicotine content in the tobacco filling did not change even if the water content of the tobacco filling decreased. In addition, in both cases of microwave drying and silica gel drying, the content of glycerin in the tobacco filler did not change even if the moisture content of the tobacco filler decreased.

On the other hand, the content of propylene glycol in the tobacco filler rapidly decreased when the moisture content of the tobacco filler became 5% by mass or less in the case of microwave drying. In addition, the content of propylene glycol in the tobacco filler gradually decreased as the moisture content of the tobacco filler decreased in the case of silica gel drying. Therefore, in order to dry the tobacco filler while maintaining the amount of propylene glycol (aerosol generator) in the tobacco filler, the moisture content of the tobacco filler is preferably greater than 5% by mass, and it is more preferable that it is 5.1% by mass or more. .

In addition, in the case of microwave drying, the results in FIG. 8 showed that when the moisture content of the tobacco filler was reduced to about 5% by mass, the surface temperature of the tobacco filler increased to about 65°C. Therefore, in order to dry the tobacco filler while maintaining the amount of propylene glycol (aerosol generating agent) in the tobacco filler, it is known that drying of the tobacco filler is preferably performed under conditions where the surface temperature of the tobacco filler is 65°C or lower. You can.

Below, the second embodiment will be described using Reference Example B.

[Reference Example B1] Moisture content of cigarette filling material

1-1. Manufacturing of flavor aspirator

Regarding the "Ploom S" dedicated cigarette stick manufactured by Nippon Tabaco Sangyo Co., Ltd. (Product name: Mevius Regular Taste Four Plum S), either (A) microwave drying or (B) silica gel drying is performed. It was done. As a result, the water content of the tobacco filler in the cigarette stick was reduced. The 'Ploom S' dedicated cigarette stick has the structure shown in FIG. 1.

The cigarette stick before the drying process contains 0.25 g of tobacco filler (i.e., a mixture of the tobacco molded body and the aerosol generator) per piece, the tobacco filler has a water content of 13.69% by mass, and in the tobacco filler, It contains 15.60% by mass of an aerosol generator. The aerosol generator is a mixture of glycerin and propylene glycol, and the mass ratio of glycerin and propylene glycol is 93.48:6.52.

Meanwhile, as a control, a cigarette stick dedicated to "Ploom S" manufactured by Nippon Tabaco Sangyo Co., Ltd. (Product name: Mobius Regular Taste Four Plum S) was placed in a 60% air conditioning room at 22°C for approximately 48 to 72 hours. harmonized.

(A) Microwave drying

A commercially available microwave oven (Twinbird Kogyo Co., Ltd., 'DR-D219W5' (2014), 50Hz) was used at 500W. Twenty cigarette sticks (tobacco filling; total 5.0 g) were heated in a microwave oven for a predetermined period of time. Heating times were 20 seconds, 40 seconds, 60 seconds, 80 seconds or 100 seconds. After heating, 20 tobacco sticks were placed together in a polypropylene (PP) chuck bag and sealed with an aluminum pouch bag. This produced a flavor inhaler. Immediately after manufacturing the flavor inhaler, the moisture content of the tobacco filler was measured.

(B) Silica gel drying

As silica gel, a commercially available product for food drying (manufactured by Toyota Kako Co., Ltd., 'HD' 1 g (blue)) was used. 20 cigarette sticks (tobacco filling; total 5.0 g) and a predetermined amount of silica gel were placed together in a polypropylene (PP) chuck bag, sealed with an aluminum pouch bag, and left for 3 hours. Drying was performed at room temperature (20°C). The amount of silica gel was 2g, 4g, 6g, 8g or 10g. This produced a flavor inhaler. Immediately after manufacturing the flavor inhaler, the moisture content of the tobacco filler was measured.

1-2. Analysis of moisture content and amount of aerosol generator in dried tobacco filler

The tobacco filler was taken out from the manufactured flavor aspirator and the control flavor aspirator, and the moisture content (mass %) of the tobacco filler was determined using GC-TCD as described above. Additionally, the amount of aerosol generator contained in the tobacco filler was determined using GC-MS as described above.

1-3. result

The relationship between the heating time of the microwave oven and the moisture content of the tobacco filling material and the relationship between the heating time of the microwave oven and the surface temperature of the tobacco filling material are shown in Figure 14. The relationship between the amount of silica gel and the moisture content of the tobacco filler is shown in Figure 15.

From the results in FIG. 14, the following can be seen. When the heating time of the microwave oven was increased, the moisture content of the tobacco filling decreased. Additionally, when the heating time of the microwave oven was increased, the surface temperature of the tobacco filling material increased. By applying a heating time of 40 to 60 seconds in a 500 W microwave oven for 20 tobacco sticks (tobacco filling; total 5.0 g), dried tobacco filling having a water content of 3 to 5% by mass could be prepared.

From the results in FIG. 15, the following can be seen. As the amount of silica gel increased, the moisture content of the tobacco filling decreased. By using 4 to 10 g of silica gel for 20 cigarette sticks (tobacco filler; total 5.0 g), a dry tobacco filler with a moisture content of 3 to 5% by mass could be prepared.

From these results, it can be seen that a dried tobacco filler having a desired water content can be prepared by changing the degree of drying by adjusting the heating time or the amount of desiccant.

The amount of aerosol generator contained in the tobacco filler was as follows.

Control: 15.60% by mass

Microwave drying for 20 seconds: 15.55 mass%

Microwave drying for 40 seconds: 16.72 mass%

Microwave drying for 60 seconds: 16.25 mass%

Microwave drying for 80 seconds: 15.29 mass%

Microwave drying for 100 seconds: 14.74 mass%

2g of dried silica gel: 15.11% by mass

4g of dried silica gel: 15.38% by mass

6g of dried silica gel: 15.12% by mass

8g of dried silica gel: 15.43% by mass

10 g of dried silica gel: 15.59% by mass

[Reference Example B2] Mainstream smoke temperature and tip temperature

2-1. Analysis of mainstream smoke temperature and tip temperature

The flavor aspirator and the control flavor aspirator manufactured in Reference Example B1 were heated with a 'Ploom S' heating device (Nippon Tabako Sangyo Co., Ltd.). The heating device has the structure shown in FIG. 5. After heating, the flavor aspirator was aspirated with an automatic aspirator.

After suction, the temperature of the mainstream smoke and the surface temperature of the mouth end of the flavor aspirator (hereinafter referred to as tip temperature) were analyzed.

(Temperature of mainstream smoke)

A thermocouple (product name: Toa Denki Co., Ltd., model number 'TI-SP-K') was installed at a position 7 mm downstream from the inlet end of the flavor aspirator, and the temperature of the mainstream smoke was measured every 0.1 second. The highest value during the measurement period was determined as the 'mainstream smoke temperature'.

(tip temperature)

On the surface of the tip paper, a thermocouple (product name: Toa Denki Co., Ltd., model number 'TI-SP-K') was installed at a position 5 mm upstream from the inlet end of the flavor aspirator, and the temperature of the mainstream smoke was measured every 0.1 second. was measured. The highest value during the measurement period was determined as 'tip temperature'.

2-2. result

The relationship between the moisture content of the tobacco filler and the mainstream smoke temperature and the relationship between the moisture content of the tobacco filler and the tip temperature are shown in Figure 16.

From the results in FIG. 16, the following can be seen. In both cases of microwave drying and silica gel drying, if the water content of the tobacco filler decreased, the mainstream smoke temperature could be decreased. In addition, in both cases of microwave drying and silica gel drying, when the water content of the tobacco filler decreased, the tip temperature could be decreased.

From these results, it can be seen that when a tobacco filler with a low moisture content is used in a flavor inhaler, it is difficult for the user to feel the heat of the aerosol or the heat of the mouth end of the article during inhalation.

[Reference Example B3] Contents of nicotine, glycerin, and propylene glycol in mainstream smoke

3-1. Analysis of nicotine, glycerin, and propylene glycol contents in mainstream smoke

For the flavor aspirator prepared in Reference Example B1 and the control flavor aspirator, the contents of nicotine, glycerin, and propylene glycol in mainstream smoke were measured as follows. Mainstream smoke was collected, extracted with a predetermined amount of ethanol (10 mL to 100 mL, appropriately adjusted depending on the amount of mainstream smoke), and the amount of each component was measured using GC-MS.

3-2. result

The relationship between the moisture content of the tobacco filler and the nicotine content in mainstream smoke is shown in Figure 17. The relationship between the moisture content of the tobacco filler and the glycerin content in mainstream smoke is shown in Figure 18. The relationship between the moisture content of the tobacco filler and the content of propylene glycol in mainstream smoke is shown in Figure 19. These figures show the contents of nicotine, glycerin, and propylene glycol in the mainstream smoke of the first puff.

From these drawings, the following can be seen.

In the case of microwave drying, when the moisture content of the tobacco filling is less than 5% by mass, the nicotine content in mainstream smoke increases rapidly, and when the moisture content of the tobacco filling is less than 3% by mass, the increase in nicotine content in mainstream smoke accelerates. did. Similarly, in the case of microwave drying, the glycerin content in mainstream smoke also increased rapidly when the moisture content of the tobacco filler was below 5% by mass, and the increase accelerated when the moisture content of the tobacco filler was below 3% by mass. Likewise, in the case of microwave drying, the content of propylene glycol in mainstream smoke increased rapidly when the moisture content of the tobacco filler was 5% by mass or less, and the increase accelerated when the moisture content of the tobacco filler was less than 3% by mass.

These phenomena are thought to be because the cell membrane and cell wall of the tobacco material are damaged by rapid drying in a microwave oven, making it easier for nicotine, glycerin, and propylene glycol in the tobacco material to transfer into mainstream smoke. Additionally, since these phenomena were particularly noticeable in the initial puff, it is thought that they affect the first impression of the flavor. Such rapid release of tobacco flavor components may lead to adverse flavor effects (e.g., a stinging taste or irritation). Therefore, in the case of microwave drying, in order to suppress adverse effects on flavor, the moisture content of the tobacco filler is preferably 3 to 5% by mass, and more preferably 4 to 5% by mass.

Meanwhile, in the case of silica gel drying, if the water content of the tobacco filler was lowered to 5% by mass or less, the contents of nicotine, glycerin, and propylene glycol in mainstream smoke could be gently increased. That is, in the case of silica gel drying, when the moisture content of the tobacco filler was reduced to 5% by mass or less, the increase in nicotine, glycerin, and propylene glycol in mainstream smoke was mild compared to microwave drying.

The reason why such results were obtained in silica gel drying is considered as follows. In other words, the cell membrane or cell wall of the tobacco material is not damaged by drying the silica gel, but the moisture content of the tobacco filler decreases, thereby reducing the generation of water vapor during heating, which increases the temperature of the tobacco filler, and as a result, nicotine in mainstream smoke , glycerin, and propylene glycol contents are thought to have slightly increased. In this way, silica gel drying can gently increase the content of nicotine, glycerin, and propylene glycol in mainstream smoke, so compared to microwave drying, it is less likely to have a negative effect on flavor (e.g., a sharp taste or irritation). low.

In addition, in the case of microwave drying, the results in FIG. 14 show that when the moisture content of the tobacco filler is reduced to about 3% by mass, the surface temperature of the tobacco filler increases to about 90°C. Therefore, in order to dry the tobacco filling while suppressing adverse effects on the flavor (e.g., a stinging taste or irritation), drying of the tobacco filling is preferably performed under conditions where the surface temperature of the tobacco filling is 90°C or lower. .

From the above results, it can be seen that reducing the moisture content of the tobacco filler to 3 to 5% by mass increases the amount of tobacco flavor source and the amount of aerosol (smoke amount) in mainstream tobacco smoke, thereby improving the inhalation feeling.

[Reference Example B4] Content of aerosol generator in cigarette filling material

In Reference Example B4, the content of the aerosol generator (i.e., a mixture of glycerin and propylene glycol) in the tobacco filler was varied. In Experiment 1, the content of propylene glycol in the tobacco filling was fixed at about 0.5% by mass, and the content of glycerin in the tobacco filling was varied. In Experiment 2, the content of glycerin in the tobacco filler was fixed at about 15% by mass, and the content of propylene glycol in the tobacco filler was varied.

4-1. Preparation of dry tobacco filling and manufacture of flavor inhaler

According to the method described in Reference Example B1, a flavor aspirator was manufactured, and tobacco filler (i.e., dried tobacco filler) was taken out from the manufactured flavor aspirator. The moisture content of the obtained dried tobacco filling was 13.69 mass%.

4-2. Analysis of the amount of aerosol generators in dried tobacco fillers

The tobacco filler was taken out from the flavor inhaler manufactured in column 4-1, and the amount of aerosol generator (glycerin, propylene glycol) contained in the tobacco filler was measured using GC-MS as described above.

4-3. Analysis of nicotine, glycerin, and propylene glycol contents in mainstream smoke

For the flavor inhaler prepared in Section 4-1, the contents of nicotine, glycerin, and propylene glycol in mainstream smoke were measured using GC-MS as described above.

4-4. result

The results of Experiment 1 are shown in Figures 20A and 20B. Figure 20A shows the relationship between the content of the aerosol generator in the tobacco filler and the content of the component in mainstream smoke. Figure 20b shows the relationship between the content of glycerin in the tobacco filler and the content of components in mainstream smoke.

The results of Experiment 2 are shown in Figures 21A and 21B. Figure 21A shows the relationship between the content of the aerosol generator in the tobacco filler and the content of the component in mainstream smoke. Figure 21b shows the relationship between the content of propylene glycol in the tobacco filler and the content of components in mainstream smoke.

In these figures, G refers to glycerin, PG refers to propylene glycol, G+PG refers to a mixture of glycerin and propylene glycol, and Nic refers to nicotine.

The following can be seen from the results of FIGS. 20A and 20B. As the content of the aerosol generator (G+PG) in the tobacco filler increased, the content of the aerosol generator (G+PG) in mainstream smoke increased, but the rate of increase gradually decreased. Specifically, when the content of the aerosol generator (G + PG) in the tobacco filler is 20% by mass or more, even if the content of the aerosol generator (G + PG) in the tobacco filler increases, the content of the aerosol generator (G + PG) in mainstream smoke almost increases. Did not do it. When the content of the aerosol generator (G + PG) in the tobacco filler is 20% by mass or more, even if the content of the aerosol generator (G + PG) in the tobacco filler increases, the glycerin content in mainstream smoke hardly increases, and the content of propylene glycol in mainstream smoke decreased slightly. In addition, when the content of the aerosol generator (G + PG) in the tobacco filler was 20% by mass or more, the nicotine content in mainstream smoke did not increase at all even if the content of the aerosol generator (G + PG) in the tobacco filler increased.

The following can be seen from the results of FIGS. 21A and 21B. As the content of the aerosol generator (G+PG) in the tobacco filler increased, the content of the aerosol generator (G+PG) in mainstream smoke increased, but the rate of increase gradually decreased. Specifically, when the content of propylene glycol in the tobacco filler exceeds 3% by mass, it becomes difficult for the content of the aerosol generator (G+PG) in mainstream smoke to increase even if the content of propylene glycol in the tobacco filler increases. When the content of propylene glycol in the tobacco filler exceeds 3% by mass, even if the content of propylene glycol in the tobacco filler increases, the content of propylene glycol in mainstream smoke also becomes difficult to increase, and the content of glycerin in mainstream smoke decreases. Additionally, when the content of propylene glycol in the tobacco filler exceeded 3% by mass, the nicotine content in mainstream smoke slightly decreased as the content of propylene glycol in the tobacco filler increased.

When the aerosol generator is heated, it vaporizes and becomes vapor, and tobacco flavor components such as nicotine transfer into the vapor, thereby generating an aerosol (mainstream smoke). As the aerosol generator vaporizes, heat of vaporization is lost, so as the content of the aerosol generator in the tobacco filler increases, the heat of vaporization also increases, thereby reducing the heating efficiency of the tobacco filler. For this reason, it is believed that as the content of the aerosol generator in the tobacco filler increases, the transfer rate of high boiling point components (i.e., glycerin and nicotine) into aerosol decreases.

From the above results, it can be seen that the content of the aerosol generator in the tobacco filler is preferably less than 20% by mass, more preferably 19% by mass or less, and even more preferably 15 to 19% by mass. Furthermore, from the above results, it can be seen that when the aerosol generator is a mixture of glycerin and propylene glycol, the content of propylene glycol in the tobacco filler is preferably 3% by mass or less, and more preferably 1 to 3% by mass.

Embodiments are shown below.

Mode 1

A tobacco sheet for a non-combustible heated flavor inhaler comprising a fiber-like material.

Mode 2

Additionally, the sheet according to aspect 1, comprising dry tobacco material and an aerosol generator, and comprising dry tobacco material having a water content of greater than 5% by mass and less than or equal to 7.5% by mass.

Mode 3

The sheet according to Embodiment 2, wherein the aerosol generator is a mixture of glycerin and propylene glycol.

Mode 4

Additionally, the sheet according to aspect 1, comprising dry tobacco material and less than 20% by mass of an aerosol generator, and comprising dry tobacco material having a moisture content of 3 to 5% by mass.

Mode 5

The dry tobacco filler according to Embodiment 4, wherein the aerosol generator is a mixture of propylene glycol and glycerin.

Mode 6

A tobacco-containing segment comprising the sheet according to any one of aspects 1 to 5,

A non-combustion heating type flavor aspirator having a.

Mode 7

A non-combustion heating type flavor inhaler according to Embodiment 6,

Heating device for heating the tobacco-containing segments

A non-combustion heated flavor aspiration system comprising a.

[1] A tobacco sheet for a non-combustible heated flavor inhaler comprising a fiber-like material.

[2] The tobacco sheet for a non-combustible heating type flavor inhaler according to [1], wherein the ratio of the fiber-like material contained in 100% by mass of the tobacco sheet is 5 to 50% by mass.

[3] The tobacco sheet for a non-combustible heating type flavor inhaler according to [1] or [2], wherein the fibrous material is at least one selected from the group consisting of fibrous pulp, fibrous tobacco material, and fibrous synthetic cellulose. .

[4] The tobacco sheet for a non-combustible heating type flavor inhaler according to [3], wherein the fibrous material is fibrous pulp.

[5] The tobacco sheet for a non-combustion heating type flavor inhaler according to [4], wherein the tobacco sheet further contains a tobacco raw material.

[6] The method for producing a tobacco sheet for a non-combustion heating type flavor inhaler according to [5], wherein the tobacco raw material is at least one type of tobacco powder selected from the group consisting of leaf tobacco, stems, and remaining stems.

[7] The tobacco sheet for a non-combustion heating type flavor inhaler according to [5] or [6], wherein the ratio of the tobacco raw material contained in 100% by mass of the tobacco sheet is 30 to 91% by mass.

[8] The tobacco sheet for a non-combustible heating type flavor inhaler according to any one of [4] to [7], wherein the tobacco sheet further contains a molding agent.

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

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

[11] The tobacco sheet for a non-combustible heated flavor inhaler according to any one of [1] to [10], wherein the tobacco sheet further contains an aerosol generator.

[12] The tobacco sheet for a non-combustible heating type flavor inhaler according to [11], wherein the aerosol generator is at least one selected from the group consisting of glycerin, propylene glycol, and 1,3-butanediol.

[13] The tobacco sheet for a non-combustible heating type flavor inhaler according to [11] or [12], wherein the proportion of the aerosol generator contained in 100% by mass of the tobacco sheet is 5 to 50% by mass.

[14] A non-combustion heating type flavor inhaler comprising a tobacco-containing segment comprising the tobacco sheet for a non-combustion heating type flavor inhaler according to any one of [1] to [13].

[15] The non-combustion heating type flavor inhaler described in [14],

Heating device for heating the tobacco-containing segments

A non-combustion heated flavor aspiration system comprising a.

Below, preferred embodiments are summarized and shown.

[A1] A dry tobacco filler containing dry tobacco material and an aerosol generator, and having a water content of greater than 5% by mass and less than or equal to 7.5% by mass.

[A2] The dried tobacco filler according to [A1], wherein the moisture content is 5.1 to 7.5 mass%, preferably 5.1 to 7.0 mass%, more preferably 5.5 to 7.0 mass%.

[A3] The dry tobacco filler according to [A1] or [A2], wherein the dried tobacco material is a molded tobacco product.

[A4] The dry tobacco filler according to any one of [A1] to [A3], wherein the aerosol generator is a mixture of glycerin and propylene glycol.

[B1] A tobacco rod including a dry tobacco filler containing dry tobacco material and an aerosol generator and having a moisture content greater than 5% by mass and less than or equal to 7.5% by mass, and a wrapper wound around the dry tobacco filler, and a filter; A non-combustion heated flavor inhaler including a tipping member connecting the tobacco rod and the filter.

[B2] The non-combustion heating type flavor inhaler according to [B1], wherein the moisture content is 5.1 to 7.5 mass%, preferably 5.1 to 7.0 mass%, and more preferably 5.5 to 7.0 mass%.

[B3] The non-combustion heating type flavor inhaler according to [B1] or [B2], wherein the dried tobacco material is a molded tobacco product.

[B4] The non-combustion heating type flavor inhaler according to any one of [B1] to [B3], wherein the aerosol generator is a mixture of glycerin and propylene glycol.

[C1] A non-combustion heating type flavor aspiration system comprising the non-combustion heating type flavor inhaler and an aerosol generating device according to any one of [B1] to [B4].

[D1] A package, and at least one non-combustible heated flavor inhaler contained within the package and containing a tobacco filler containing a tobacco material and an aerosol generating agent, wherein the tobacco filler is greater than 5% by mass and has a mass of 7.5% A desiccant contained within the package in an amount necessary to achieve an equilibrium moisture content of % or less,

The tobacco filler is a packaging product that reaches an equilibrium moisture content of greater than 5% by mass and less than or equal to 7.5% by mass within the package.

[D2] The packaged product according to [D1], wherein the equilibrium moisture content is 5.1 to 7.5 mass%, preferably 5.1 to 7.0 mass%, more preferably 5.5 to 7.0 mass%.

[D3] The packaging product according to [D1] or [D2], wherein the tobacco material is a molded tobacco product.

[D4] The packaged product according to any one of [D1] to [D3], wherein the aerosol generator is a mixture of glycerin and propylene glycol.

[E1] Drying a tobacco filling containing tobacco material and an aerosol generator to prepare a dry tobacco filling having a moisture content greater than 5% by mass and less than or equal to 7.5% by mass.

A method for producing dry tobacco filling, comprising:

[E2] The method described in [E1], wherein the drying is performed by microwave heating.

[E3] The method according to [E1] or [E2], wherein the drying is performed under conditions where the surface temperature of the tobacco filler is at a temperature of 65°C or lower.

[E4] The method according to any one of [E1] to [E3], wherein the drying is performed by placing the tobacco filler in the presence of a desiccant.

[E5] The method according to any one of [E1] to [E4], wherein the moisture content is 5.1 to 7.5 mass%, preferably 5.1 to 7.0 mass%, more preferably 5.5 to 7.0 mass%.

[E6] The method according to any one of [E1] to [E5], wherein the tobacco material is a molded tobacco product.

[E7] The method according to any one of [E1] to [E6], wherein the aerosol generator is a mixture of glycerin and propylene glycol.

[F1] A dry tobacco filler produced by the method described in any one of [E1] to [E7].

Below, preferred embodiments are summarized and shown.

[a1] A dry tobacco filler containing dry tobacco material and less than 20% by mass of an aerosol generator, and having a moisture content of 3 to 5% by mass.

[a2] The dry tobacco filler according to [a1], wherein the water content is 3.5 to 5% by mass, preferably 4 to 5% by mass.

[a3] The dry tobacco filler according to [a1] or [a2], wherein the aerosol generator is contained in an amount of 19% by mass or less, preferably 15 to 19% by mass.

[a4] The dry tobacco filler according to any one of [a1] to [a3], wherein the dry tobacco material is a molded tobacco product.

[a5] The dry tobacco filler according to any one of [a1] to [a4], wherein the aerosol generator is a mixture of propylene glycol and glycerol.

[a6] The dry tobacco filler according to [a5], wherein the propylene glycol is contained in an amount of 3% by mass or less, preferably 1 to 3% by mass.

[b1] A tobacco rod comprising a dry tobacco filler containing dry tobacco material and less than 20% by mass of an aerosol generator and having a moisture content of 3 to 5% by mass, and a wrapper wound around the dry tobacco filler;

filter,

Tipping member connecting the tobacco rod and the filter

A non-combustible heated flavor aspirator comprising a.

[b2] The non-combustion heating type flavor inhaler according to [b1], wherein the moisture content is 3.5 to 5% by mass, preferably 4 to 5% by mass.

[b3] The non-combustion heating type flavor inhaler according to [b1] or [b2], wherein the aerosol generator is contained in an amount of 19% by mass or less, preferably 15 to 19% by mass.

[b4] The non-combustion heating type flavor inhaler according to any one of [b1] to [b3], wherein the dried tobacco material is a molded tobacco product.

[b5] The non-combustion heating type flavor inhaler according to any one of [b1] to [b4], wherein the aerosol generator is a mixture of propylene glycol and glycerol.

[b6] The non-combustion heating type flavor inhaler according to [b5], wherein the propylene glycol is contained in an amount of 3% by mass or less, preferably 1 to 3% by mass.

[c1] A non-combustion heating type flavor inhaler comprising the non-combustion heating type flavor inhaler according to any one of [b1] to [b6] and an aerosol generating device.

[d1] a packaging body,

at least one non-combustible heated flavor inhaler contained within the package, the non-combustible heated flavor inhaler comprising a tobacco filler containing tobacco material and an aerosol generating agent;

A desiccant contained in the package in an amount necessary for the tobacco filler to reach an equilibrium moisture content of 3 to 5% by mass.

Including,

The tobacco filler is a packaging product that reaches an equilibrium moisture content of 3 to 5% by mass in the package.

[d2] The packaged product according to [d1], wherein the equilibrium moisture content is 3.5 to 5% by mass, preferably 4 to 5% by mass.

[d3] The packaged product according to [d1] or [d2], wherein the aerosol generator is contained in an amount of less than 20% by mass, preferably 19% by mass or less, more preferably 15 to 19% by mass.

[d4] The packaging product according to any one of [d1] to [d3], wherein the tobacco material is a molded tobacco product.

[d5] The packaged product according to any one of [d1] to [d4], wherein the aerosol generator is a mixture of propylene glycol and glycerol.

[d6] The packaged product according to [d5], wherein the propylene glycol is contained in an amount of 3% by mass or less, preferably 1 to 3% by mass.

[e1] Drying a tobacco filler containing a tobacco material and an aerosol generator under conditions such that the surface temperature of the tobacco filler is 90° C. or lower to prepare a dry tobacco filler having a moisture content of 3 to 5% by mass. A method for producing dried tobacco filling, comprising:

[e2] The method according to [e1], wherein the drying is performed under conditions where the surface temperature of the tobacco filler is at a temperature of 65°C or lower.

[e3] The method according to [e1] or [e2], wherein the drying is performed under conditions of room temperature and humidity of 30% or less.

[e4] Among [e1] to [e3], wherein the drying is carried out under conditions of a temperature of 5 to 35°C, preferably 15 to 25°C, and a humidity of 10 to 30%, preferably 15 to 25%. The method described in any one.

[e5] The method according to any one of [e1] to [e4], wherein the drying is performed by placing the tobacco filler in the presence of a desiccant.

[e6] The method according to any one of [e1] to [e5], wherein the moisture content is 3.5 to 5% by mass, preferably 4 to 5% by mass.

[e7] Among [e1] to [e6], wherein the dried tobacco filler contains the aerosol generator in an amount of less than 20% by mass, preferably 19% by mass or less, more preferably 15 to 19% by mass. The method described in any one.

[e8] The method according to any one of [e1] to [e7], wherein the tobacco material is a molded tobacco product.

[e9] The method according to any one of [e1] to [e8], wherein the aerosol generator is a mixture of propylene glycol and glycerol.

[e10] The method described in [e9], wherein the dried tobacco filler contains the propylene glycol in an amount of 3% by mass or less, preferably 1 to 3% by mass.

[f1] A dry tobacco filler manufactured by the method according to any one of [e1] to [e10].

1: Non-combustible heated flavor aspirator
2: Tobacco-containing segment
3: Cooling segment
4: Center hole segment
5: Filter segment
6: Mouthpiece segment
7: Usually absent
8: perforation
9: second packed layer
10: Second inner plug wrapper
11: Outer plug wrapper
12: Mouthpiece lining paper
13: Heating device
14: body
15: heater
16: Metal pipe
17: Battery unit
18: control unit
19: recess
T1a: Tobacco material
T1b: dry tobacco material
T2: Aerosol generator
T3a: Untreated tobacco filler
T3b: dry tobacco filling

Claims (7)

A tobacco sheet for a non-combustible heated flavor inhaler comprising a fiber-like material. According to paragraph 1,
Additionally, a sheet comprising dry tobacco material and an aerosol generator, and comprising dry tobacco material having a water content of greater than 5% by mass and less than or equal to 7.5% by mass. According to paragraph 2,
A sheet wherein the aerosol generator is a mixture of glycerin and propylene glycol. According to paragraph 1,
Additionally, a sheet comprising dry tobacco material and less than 20% by mass of an aerosol generator, and comprising dry tobacco material having a moisture content of 3 to 5% by mass. According to paragraph 4,
A dry tobacco filler wherein the aerosol generator is a mixture of propylene glycol and glycerin. Tobacco-containing segment comprising the sheet according to any one of claims 1 to 5.
A non-combustion heating type flavor aspirator having a. A non-combustion heating type flavor aspirator according to claim 6,
Heating device for heating the tobacco-containing segments
A non-combustion heated flavor aspiration system comprising a.