WO2021085532A1 - Tobacco filler for heat-not-burn tobacco products, heat-not-burn tobacco product, and electrically heated tobacco product - Google Patents

Abstract

Provided is a tobacco filler for heat-not-burn tobacco products that is capable of efficiently delivering a flavor component contained in the tobacco filler to a user. Specifically, the tobacco filler for heat-not-burn tobacco products contains a tobacco material and an aerosol generation substrate, said tobacco filler containing a lipid-containing aerosol stabilizer. The proportion of saturated fatty acids having 16-18 carbon atoms in the lipids contained in the aerosol stabilizer is 50% by weight or more.

Description

Tobacco fillings for non-combustion heating tobacco, non-combustion heating tobacco and electrically heating tobacco products

The present invention relates to a tobacco filler for non-combustion heat-not-burn tobacco, a non-combustion heat-not-burn tobacco product, and an electrically heated tobacco product.

It is important to increase the satisfaction level when using an electrically heated tobacco product equipped with a tobacco filler for non-combustion heated tobacco. In particular, in an electrically heated tobacco product in which the flavor components contained in the tobacco filling are volatilized together with the aerosol-producing base material and delivered to the user's oral cavity, it is required to exhibit a flavor taste close to that of a conventional cigarette. ing. A technique for adding an acid to a filler in such a non-combustion type heated smoking article has been reported (see, for example, Patent Document 1).

International Publication No. 2017/203686

Patent Document 1 states that by adding an acid having a primary acid dissociation constant and a boiling point within a specific range to a tobacco filling, formation of a salt with a flavor component contained in the tobacco filling is suppressed. Furthermore, it is described that the chemical odor is suppressed. The invention described in Patent Document 1 utilizes an acid-base reaction.
When the flavor component contained in the tobacco filling volatilizes together with the aerosol-forming substrate when the electrically heated tobacco product is used, the flavor component is incorporated into the cooled and condensed aerosol particles. Therefore, in order for the flavor components to be stably delivered to the user's oral cavity, it is important that the generated aerosol particles exist stably without volatilizing until they are delivered to the user's oral cavity. It turns out that there is. The composition of the components on the surface of the aerosol particles greatly contributes to the physical properties of the aerosol particles, and it is considered that coating the surface of the aerosol particles with a non-volatile component is effective for stabilizing the aerosol particles. Since the generated aerosol particles do not volatilize and exist stably until they are delivered to the oral cavity, they are locally present on the surface of the aerosol particles composed of hydrophilic substances such as water and glycerin. It has been found that certain fatty acids can be added to the aerosol filling.

For this reason, it is an object of the present invention to provide a user with a tobacco filling for non-combustion-heated tobacco that can efficiently deliver the flavor components contained in the tobacco filling.

As a result of diligent studies by the present inventor, an aerosol stabilizer containing saturated fatty acids has been added to the tobacco filling for non-combustion heat-not-burn tobacco, which contains a tobacco material and an aerosol-forming substrate. It has been found that the above-mentioned problems can be solved when the proportion of saturated fatty acids having 16 to 18 carbon atoms in the lipid contained in the aerosol stabilizer is 50% by weight or more.

That is, the present invention is as follows.
[1] A tobacco filling for non-combustion heat-not-burn tobacco containing a tobacco material and an aerosol-forming substrate, wherein an aerosol stabilizer containing a lipid is added to the tobacco filling, and the aerosol is stable. A tobacco filler for non-combustion heat-not-burn tobacco, wherein the ratio of saturated fatty acids having 16 to 18 carbon atoms in the lipid contained in the agent is 50% by weight or more.
[2] The non-combustion heating type according to [1], wherein the amount of the aerosol stabilizer added to the tobacco filling is 0.1 to 5.0% by weight based on the dry weight of the total amount of the tobacco filling. Tobacco filling for tobacco.
[3] The tobacco filler for non-combustion heat-not-burn tobacco according to [1] or [2], wherein the saturated fatty acid having 16 to 18 carbon atoms has a solubility in glycerin of 0.13 mg / g or less.
[4] The non-combustion heat-not-burn tobacco product according to any one of [1] to [3], wherein the saturated fatty acid having 16 to 18 carbon atoms is one or more selected from palmitic acid, stearic acid, and a mixture thereof. Tobacco filling.
[5] The tobacco filling for non-combustion heating type tobacco according to any one of [1] to [4], wherein the tobacco filling is a molded product of a tobacco material composed of tobacco chopped.
[6] The tobacco filling for non-combustion heating type tobacco according to any one of [1] to [4], wherein the tobacco filling is a molded body of a tobacco material composed of a tobacco sheet.
[7] The tobacco filling for non-combustion heating type tobacco according to any one of [1] to [4], wherein the tobacco filling is composed of a granular tobacco material.
[8] The tobacco filler for non-combustion heat-not-burn tobacco according to [5] or [6], wherein the aerosol stabilizer is added to the surface of the molded product of the tobacco material.
[9] The tobacco filler for non-combustion heat-not-burn tobacco according to any one of [5] to [7], wherein the aerosol stabilizer is uniformly added to the tobacco material.
[10] A non-combustion heating type having a tobacco rod portion made of the tobacco filling according to any one of [1] to [9] and a mouthpiece portion forming an end portion opposite to the tobacco rod portion. Tobacco.
[11] The non-combustion heating type cigarette according to [10], wherein the mouthpiece portion includes a cooling portion.
[12] A non-combustion heat-not-burn tobacco comprising the tobacco filling according to [7] and a container containing the tobacco filling.
[13] The non-combustion heating type tobacco according to [10] or [11], which has a susceptor for heating the tobacco filling inside the tobacco rod portion.
[14] An electrically heated device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member is inserted so as to come into contact with the heater member. Consists of the non-combustion heating type tobacco according to any one of [10] to [12].
An electric heating type tobacco product in which the tobacco rod part of a non-combustion heating type tobacco is heated to 250 to 400 ° C.
[15] The electrically heated tobacco product according to [14], wherein the heater member has a cylindrical shape.
[16] The electric heating type device including an inductor, a battery unit for supplying electric power to the inductor, and a control unit for controlling the electric power supply, and an electrically heated device inserted close to the inductor, according to [13]. Consists of non-combustion heating type tobacco,
An electric heating type tobacco product in which the tobacco rod part of a non-combustion heating type tobacco is heated to 250 to 400 ° C.
[17] Tobacco filling including a step of adding an aerosol stabilizer containing a lipid and having a saturated fatty acid having 16 to 18 carbon atoms in the lipid in an amount of 50% by weight or more to the tobacco material before or after molding. Manufacturing method of things.
[18] The method for producing a tobacco filler according to [17], wherein the step of adding the aerosol stabilizer to the tobacco material before molding is a step of mixing the tobacco material and the aerosol stabilizer.
[19] The production of the tobacco filler according to [17], wherein the step of adding the aerosol stabilizer to the molded tobacco material is a step of spraying or applying the aerosol stabilizer to the molded tobacco material. Method.

According to the present invention, it is possible to provide a user with a tobacco filling for non-combustion heating type tobacco, which can efficiently deliver the flavor component contained in the tobacco filling.

It is the schematic which shows one aspect of the non-combustion heating type cigarette. It is a schematic diagram which shows the mode of heating the outer peripheral surface of the tobacco rod which is one aspect of an electric heating type tobacco product. It is a schematic diagram which shows the mode of heating the inside of the tobacco rod which is one aspect of an electric heating type tobacco product. It is a schematic diagram which shows the mode of heating a tobacco rod by IH which is one aspect of an electric heating type tobacco product. It is a figure which shows the relationship between the solubility of each lipid in glycerin, and the feeling of tobacco. It is a figure which shows the relationship between the weight ratio of the C16-C18 saturated fatty acid in each lipid, and the feeling of tobacco. It is a figure which shows the relationship between the addition amount of a lipid (palmitic acid) and the feeling of tobacco.

Hereinafter, the present invention will be described in detail by showing embodiments and examples, but the present invention is not limited to the following embodiments and examples, and is arbitrarily limited to the extent that the gist of the present invention is not deviated. Can be changed and implemented.
In the present specification, "non-combustion heat-not-burn tobacco" is a tobacco that can deliver the flavor component contained in the tobacco material to the user's oral cavity by heating without combustion, unlike the conventional cigarette. To say.
In the present specification, the "tobacco raw material" is, for example, a tobacco leaf lamina, a middle bone, a stem, etc., which is not used as it is as a tobacco filling material. The "tobacco material" is a material that constitutes a tobacco filling, and uses "tobacco raw materials" such as "tobacco sheet", "tobacco granule", "tobacco chopped", and "tobacco fine powder" described later. It is an article manufactured by

<Tobacco filling for non-combustion heating type tobacco>
The tobacco filling for non-combustion heat-not-burn tobacco according to the embodiment of the present invention contains a tobacco material and an aerosol-producing base material, and the tobacco filling is added with an aerosol stabilizer containing a fat. The proportion of saturated fatty acids having 16 to 18 carbon atoms in the lipid contained in the aerosol stabilizer is 50% by weight or more. The problem of the present invention can be solved by containing saturated fatty acids having 16 to 18 carbon atoms in that proportion.
The proportion of saturated fatty acids having 16 to 18 carbon atoms in the lipid is more preferably 80% by weight or more, further preferably 90% by weight or more, and particularly preferably 99% by weight or more. There are no particular restrictions on lipids other than saturated fatty acids having 16 to 18 carbon atoms. However, it is preferable that lipids other than saturated fatty acids having 16 to 18 carbon atoms are not contained as much as possible.
The solubility of saturated fatty acids having 16 to 18 carbon atoms in water and glycerin, which mainly form aerosols, is extremely low, and it is considered that the solubility of saturated fatty acids affects the coating of aerosol particles. However, when a predetermined amount or more of highly soluble lipid is mixed, the original coating effect of saturated fatty acid having 16 to 18 carbon atoms may not be sufficiently exhibited. Therefore, the solubility of individual lipids and, in the case of a mixture of multiple lipids, the proportion of low-solubility lipids to high-lipids is important as an index for predicting the effect.
The term "aerosol stabilizer" as used herein is intended to maintain the stability of aerosol particles generated from non-combustion heat-not-burn tobacco in air, and contains a specific lipid as described above. is there.
The aerosol stabilizer containing the saturated fatty acid may contain other components in addition to the lipid, but the content of the lipid in the aerosol stabilizer is preferably 90% by weight or more, preferably 95% by weight or more. Is more preferable, and 99% by weight or more is particularly preferable.

The solubility of lipid in glycerin is 0.13 mg / g or less, preferably 0.12 mg / g or less, more preferably 0.11 mg / g, while 0.01 mg / g or more can be mentioned. Here, the "solubility in glycerin" is determined as follows.

<Measurement method of solubility in glycerin>
The best solubility of glycerin is the method of quantifying the fatty acid dissolved in 2 g of glycerin. Specifically, after adding an excessive amount of fatty acid to glycerin, two-layer separation is performed by allowing it to stand at room temperature for 24 hours or more or by centrifugation, etc., and 100 mg of glycerin is separated and transferred to 2 mL of methanol. The amount of fatty acids dissolved in glycerin is quantified by Gas Chromatograph --Flame Ionized Detector (GC-FID) or Gas Chromatograph --Mass Spectrometer (GC-MS).

Examples of the saturated fatty acid having 16 to 18 carbon atoms include palmitic acid, margaric acid and stearic acid, and among these, palmitic acid, stearic acid and a mixture thereof can be preferably mentioned.
As the saturated fatty acid having 16 to 18 carbon atoms, a mixture may be used, or one containing each saturated fatty acid alone may be used. For example, it is also preferable to use palmitic acid and stearic acid individually.
A lipid containing only saturated fatty acids having 16 to 18 carbon atoms and further containing only saturated fatty acids having 16 to 18 carbon atoms can be used as an aerosol stabilizer.

The amount of the aerosol stabilizer added to the tobacco filling can be 0.1% by weight or more, 5.0% by weight or less, and 0.5% by weight or more, based on the dry weight of the total amount of the tobacco filling. It is more preferably 2.0% by weight or less, more preferably 0.5% by weight or more and 1.5% by weight or less, and more preferably 0.75% by weight or more and 1.25% by weight or less. Especially preferable. With such an addition amount, the aerosol generated during use can be stably present, and the aerosol physical characteristics having stability close to that of cigarettes make the flavor and taste similar to cigarettes.
The amount of the saturated fatty acid having 16 to 18 carbon atoms added to the tobacco filling is preferably 0.1% by weight or more and 2.0% by weight or less, preferably 0.5% by weight, based on the dry weight of the total amount of the tobacco filling. It is more preferably 0.75% by weight or more and 1.5% by weight or less, and particularly preferably 0.75% by weight or more and 1.25% by weight or less. The amount of the aerosol stabilizer added and the amount of the saturated fatty acid having 16 to 18 carbon atoms may be in the same range because the aerosol stabilizer is composed of lipids, and all of the lipids have 16 to 18 carbon atoms. Indicates that it may be a saturated fatty acid.

<Specific aspects of tobacco filling>
As a specific embodiment of the tobacco filling material for non-combustion-heated tobacco according to the embodiment of the present invention, a molded body (hereinafter, also referred to as a first tobacco filling material) composed of a tobacco material containing tobacco nicks and a description thereof will be described later. A molded product of a tobacco material composed of a tobacco sheet (hereinafter, also referred to as a second tobacco filling) and a product composed of granules prepared using a tobacco raw material (hereinafter, also referred to as a third tobacco filling). ) Can be mentioned.
As these molded bodies, rod-shaped ones can be mentioned.
In the present invention, in the longitudinal direction of the non-combustion heating type cigarette, the direction h in FIG. 1 is the longitudinal direction. Further, when the non-combustion heat-not-burn tobacco has a rod shape, the longitudinal direction of the non-combustion heat-not-burn tobacco may be regarded as the same as the longitudinal direction of the tobacco rod. The tobacco filler in the non-combustion heat-not-burn tobacco of the present invention preferably has a columnar shape satisfying a shape having an aspect ratio of 1 or more as defined below.
Aspect ratio = h / w
w is the width of the bottom surface of the columnar body, h is the height, and h ≧ w is preferable. However, in the present invention, as described above, the longitudinal direction is defined as the direction indicated by h. Therefore, even when w ≧ h, the direction indicated by h is referred to as the longitudinal direction for convenience. The shape of the bottom surface is not limited and may be a polygon, a polygon with rounded corners, a circle, an ellipse, etc., and the width w is a diameter when the bottom surface is circular, a major axis when the bottom surface is elliptical, a polygonal shape, or a polygon with rounded corners. In some cases, it is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. For example, in the embodiment shown in FIG. 1, since the bottom surface is a circle, its diameter can be recognized. The diameter is the width w, and the length orthogonal to the width is the height h. The height h of the tobacco filling material constituting the tobacco rod is preferably 12 mm or more and 70 mm or less, and the width w is preferably 4 mm or more and 9 mm or less.

First, the first filling will be explained. The tobacco material constituting the first filling is not particularly limited, and a known tobacco raw material such as lamina or middle bone that has been subjected to a treatment such as cutting or crushing can be used. Further, dried tobacco leaves are crushed and homogenized so that the average particle size is about 20 μm or more and 200 μm or less, and the sheet is processed (hereinafter, also simply referred to as a homogenized sheet). May be good. The width of the tobacco engraving is preferably 0.5 mm or more and 2.0 mm or less for molding as a tobacco rod. The content of the tobacco filler in the molded tobacco rod may be 200 mg / rod or more and 800 mg / rod or less in the case of a tobacco rod having a circumference of 22 mm and a length of 20 mm, and may be 250 mg / rod or more and 600 mg / rod. The following is preferable. As for the tobacco leaves used for producing the tobacco chopped and homogenized sheets, various types of tobacco can be used. For example, yellow varieties, Burley varieties, Orient varieties, native varieties, other Nicotiana-Tabacam varieties, Nicotiana rustica varieties, and mixtures thereof can be mentioned. As for the mixture, each of the above varieties can be appropriately blended and used so as to obtain the desired taste. Details of the tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Academic Studies Center, 2009.3.31". There are a plurality of conventional methods for producing the homogenized sheet, that is, a method for crushing tobacco leaves and processing them into a homogenized sheet. The first is a method of producing a papermaking sheet using a papermaking process. The second is to mix an appropriate solvent such as water with crushed tobacco leaves to homogenize, then cast the homogenized product thinly on a metal plate or metal plate belt, dry it, and cast sheet (slurry sheet). Is a method of producing. The third method is to prepare a rolled sheet by mixing an appropriate solvent such as water with crushed tobacco leaves and extruding the homogenized one into a sheet. Details of the types of the homogenized sheet are disclosed in "Tobacco Encyclopedia, Tobacco Academic Studies Center, 2009.3.31".

The water content of the tobacco filling can be 10% by weight or more and 15% by weight or less, preferably 11% by weight or more and 13% by weight or less, based on the total amount of the tobacco filling. With such a water content, the occurrence of winding stains is suppressed, and the hoisting suitability at the time of manufacturing the tobacco rod is improved.
There are no particular restrictions on the size of the tobacco nicks contained in the first tobacco filling and the method for preparing the nicks. For example, dried tobacco leaves may be chopped to a width of 0.5 mm or more and 2.0 mm or less.
When a crushed product of a homogenized sheet is used, dried tobacco leaves are crushed so that the average particle size is about 20 μm or more and 200 μm or less, and the homogenized product is processed into a sheet, and the width is 0.5 mm or more. , 2.0 mm or less may be used.

The first tobacco filling comprises an aerosol-producing substrate that produces an aerosol. The type of the aerosol-forming base material is not particularly limited, and extracts from various natural products and / or their constituents can be selected depending on the intended use. Examples of the aerosol-forming substrate include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
The content of the aerosol-producing base material in the first tobacco filling is not particularly limited, and is usually 5 weights based on the total amount of the tobacco filling from the viewpoint of sufficiently producing aerosols and imparting a good taste. % Or more, preferably 10% by weight or more, and usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less.

The first tobacco filling may contain a fragrance. The type of the fragrance is not particularly limited, and from the viewpoint of imparting a good taste, acetoanisol, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-annel, staranis oil. , Apple juice, Peruvian balsam oil, Mitsurou absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butandione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamon oil , Carob absolute, β-carotene, carrot juice, L-carboxylic, β-cariophyllene, cassia bark oil, cedar wood oil, celery seed oil, camomil oil, cinnamaldehyde, silicic acid, cinnamyl alcohol, cinnamyl silicate, citronella Oil, DL-Citronellol, Clarisage Extract, Cocoa, Coffee, Cognac Oil, Coriander Oil, Cuminaldehyde, Davana Oil, δ-Decalactone, γ-Decalactone, Decanoic Acid, Dilherb Oil, 3,4-Dimethyl-1,2 -Cyclopentandione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine , 2,6-Dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltor, ethyl octanate, ethyl oleate , Ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3, (5 or 6) -dimethylpyrazine, 5-ethyl-3-hydroxy -4-Methyl-2 (5H) -Flanone, 2-Ethyl-3-methylpyrazine, Eucalyptor, Fenegreak Absolute, Gene Absolute, Lindou Root Infusion, Geraniol, Geranil Acetate, Grape Juice, Guayacol, Guava Extract, γ-Heptalactone, γ-hexalactone, hexanoic acid, cis-3-hexene-1-ol, hexyl acetate, hexyl alcohol, hexyl phenylacetate, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy-4 -(3-Hide Roxy-1-butenyl) -3,5,5-trimethyl-2-cyclohexene-1-one, 4- (para-hydroxyphenyl) -2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, β- Ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpenless oil, kanzo extract, linalol, linaryl acetate, lobage root oil, maltor, Maple syrup, menthol, menthon, L-mentyl acetate, paramethoxybenzaldehyde, methyl-2-pyrrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, Mimosa absolute, toumitsu, myristic acid, nerol, nerolidol, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanoic acid, orange flower oil, orange oil, oris root oil, palmitic acid, ω-pentadecalactone, Peppermint oil, petitgrain paraguay oil, phenethyl alcohol, phenylacetate phenethyl, phenylacetic acid, piperonal, plum extract, propenylguaetol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvate, raisin extract, rose Oil, lamb liquor, sage oil, sandalwood oil, sparemint oil, stylux absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5 , 9-Tetramethyl-13-oxacyclo (8.3.0.0 (4.9)) tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-toridecanone, citric acid Triethyl, 4- (2,6,6-trimethyl-1-cyclohexenyl) 2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4- (2,6) , 6-trimethyl-1,3-cyclohexadienyl) 2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratolaldehyde , Violet Leaf Absolute, N-Ethyl-p-Menta N-3-carboxamide (WS-3), ethyl-2- (p-menthane-3-carboxamide) acetate (WS-5) can be mentioned, and menthol is particularly preferable. In addition, these fragrances may be used alone or in combination of two or more.

The content of the flavor in the first tobacco filling is not particularly limited, and is usually 10,000 ppm or more, preferably 20,000 ppm or more, more preferably 25,000 ppm or more, and from the viewpoint of imparting a good taste. , Usually 50,000 ppm or less, preferably 40,000 ppm or less, and more preferably 33,000 ppm or less.

^{The filling density in the first tobacco filling is not particularly limited, but is usually 250 mg / cm 3} or more, preferably 320 mg / cm from the viewpoint of ensuring the performance of non-combustion heat-not-burn tobacco and imparting a good taste. ^{It is 3} or more, and usually 800 mg / cm ³ or less, preferably 600 mg / cm ³ or less.
The first tobacco filling described above is wrapped with rolling paper so that it is on the inside to form a tobacco rod. As for the tobacco filling, the tobacco materials constituting the filling may be randomly arranged, or may be a strand type arranged along the longitudinal direction of the tobacco rod.

The second tobacco filling is composed of one or more tobacco sheets, and in the case of two or more sheets, they are arranged concentrically. In the present invention, the concentric arrangement means that the centers of all the tobacco sheets are arranged at substantially the same position. In the present invention, the sheet refers to a shape having a pair of substantially parallel main surfaces and side surfaces. The sheet is preferably manufactured by papermaking. As the second filling, one tobacco sheet is wound around in a direction orthogonal to the longitudinal direction of the non-combustion heat-not-burn tobacco to form a molded body, and a plurality of tobacco sheets are wound concentrically to form a molded body. Examples of what constitutes a body can be illustrated. Further, it may be a so-called gather sheet in which one or more tobacco sheets are folded back in parallel with the longitudinal direction of the non-combustion heat-not-burn tobacco to form a filling.
Examples of the sheet base material include tobacco materials such as tobacco powder. In the present invention, a tobacco material is preferable as the sheet base material. It is preferable that the base sheet of the tobacco material is a tobacco sheet in which a component capable of generating a flavor is supported, if necessary. Tobacco sheets produce aerosols as they heat. An aerosol source such as a polyol such as glycerin, propylene glycol, or 1,3-butanediol is added as an aerosol-forming base material. The amount of the aerosol-forming base material added is preferably 5% by weight or more and 50% by weight or less, more preferably 15% by weight or more and 25% by weight or less, based on the dry weight of the tobacco sheet.

A tobacco sheet as a material before being formed as a molded body will be described.
The tobacco sheet can be appropriately produced by a known method such as papermaking, slurry, rolling, or the like. The homogenizing sheet described in the first tobacco filling can also be used.
In the case of papermaking, it can be produced by a method including the following steps. 1) Dried tobacco leaves are coarsely crushed, extracted with water and separated into a water extract and a residue. 2) The water extract is dried under reduced pressure and concentrated. 3) Pulp is added to the residue, fiberized with a refiner, and then papermaking is performed. 4) A concentrated solution of water extract is added to the paper-made sheet and dried to obtain a tobacco sheet. In this case, a step of removing a part of components such as nitrosamine may be added (see Japanese Patent Application Laid-Open No. 2004-510422).
In the case of the slurry method, it can be produced by a method including the following steps. 1) Mix water, pulp and binder with crushed tobacco leaves. 2) The mixture is thinly spread (cast) and dried. In this case, a step of removing some components such as nitrosamines by irradiating the slurry in which water, pulp and a binder and crushed tobacco leaves are mixed with ultraviolet rays or X-rays may be added.
In addition, as described in International Publication No. 2014/104078, a non-woven tobacco sheet produced by a method including the following steps can also be used. 1) Mix the powdered tobacco leaves and the binder. 2) The mixture is sandwiched between non-woven fabrics. 3) The laminate is formed into a constant shape by heat welding to obtain a non-woven tobacco sheet.
As the type of the raw material tobacco leaf used in each of the above methods, the same type as that described in the first filling can be used.
The composition of the tobacco sheet is not particularly limited, but for example, the content of the tobacco raw material (tobacco leaf) is preferably 50% by weight or more and 95% by weight or less based on the total weight of the tobacco sheet. The tobacco sheet may contain a binder, and examples of the binder include guar gum, xanthan gum, CMC (carboxymethyl cellulose), and CMC-Na (sodium salt of carboxymethyl cellulose). The amount of the binder is preferably 1% by weight or more and 20% by weight or less with respect to the total weight of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of the additive include a filler such as pulp. Although a plurality of tobacco sheets are used in the present invention, all of the tobacco sheets may have the same composition or physical properties, or some or all of the tobacco sheets may have different compositions or physical properties.

When the second tobacco filling is composed of one tobacco sheet, the second tobacco filling can be produced by passing the tobacco sheet through a winding tube and winding it in a superposed manner. When the second tobacco filling is composed of a plurality of tobacco sheets, a plurality of tobacco sheets having different widths are prepared, and a laminated body is prepared in which the width decreases from the bottom to the top. It can be manufactured by passing it through a winding tube and winding it. According to this manufacturing method, one or a plurality of tobacco sheets extend in the longitudinal direction and are arranged concentrically about the longitudinal axis.
Further, a through hole extending in the longitudinal direction is formed as the opening between the longitudinal axis and the innermost layer of the tobacco sheet.

In this production method, it is preferable that the non-contact portion is formed between adjacent tobacco sheets after the winding molding.
A non-contact portion where the tobacco sheets do not come into contact with each other in each of the case where one tobacco sheet is rolled up in a superposed manner to form a molded body and the case where the molded body is composed of a plurality of tobacco sheets. When (gap) is present, the flavor flow path can be secured and the delivery efficiency of the flavor component can be improved. On the other hand, since the heat from the heater can be transferred to the outer tobacco sheet through the contact portion of the tobacco sheet, high heat transfer efficiency can be ensured.
In order to provide a non-contact portion between the tobacco sheets so that the tobacco sheets do not come into contact with each other, for example, when a plurality of tobacco sheets using an embossed tobacco sheet are used, the entire surfaces of the adjacent tobacco sheets are laminated without being adhered to each other. A laminated body (molded body) by bonding a part of adjacent tobacco sheets and laminating them, or by lightly adhering and laminating the entire surface or a part of adjacent tobacco sheets so as to be peeled off after winding molding. ) Can be mentioned.
When preparing a tobacco rod including a wrapping paper, the above-mentioned wrapping paper may be arranged at the bottom of the laminated body (molded body).

Further, an opening can be formed by placing a tubular dummy such as a mandrel on the top of the laminated body (molded body) to form a second tobacco filling and then removing the dummy. ..
The thickness of each tobacco sheet is not limited, but is preferably 200 μm or more and 600 μm or less in view of the balance between heat transfer efficiency and strength. The thickness of each tobacco sheet may be the same or different.
The number of tobacco sheets constituting the second tobacco filling is not particularly limited as long as it is one or more, and examples thereof include one, two, three, four, five, or six.

The third tobacco filling is composed of tobacco granules.
The raw material of the third tobacco filling is not particularly limited, but at least one pH adjuster selected from the group consisting of (a) tobacco material, (b) water content, (c) potassium carbonate and sodium hydrogen carbonate. ,, (D) At least one binder selected from the group consisting of pullulan and hydroxypropyl cellulose, and (e) aerosol-forming substrate.

The tobacco material (component (a)) contained in the third tobacco filling includes crushed tobacco leaves, crushed tobacco sheet, and the like. Tobacco varieties include Burley, Yellow and Oriental varieties. The tobacco material is preferably pulverized to a size of 200 μm or more and 300 μm or less.
The raw material mixture of the third tobacco filling usually contains the tobacco material in an amount of 20% by weight or more and 80% by weight or less.

The water content (component (b)) contained in the third tobacco filling is for maintaining the integrity of the tobacco granules.
The raw material mixture of the third tobacco filling usually contains water in an amount of 3% by weight or more and 13% by weight or less. In addition, the third tobacco filling may contain water in an amount such that the value of dry weight loss is usually 5% by weight or more and 17% by weight or less. Dry weight loss is when a part of a sample is taken for measurement and the sample is completely dried by evaporating the total water content in the collected sample (for example, at a constant temperature (105 ° C.) for 15 minutes. Refers to the change in weight before and after drying), specifically, the ratio of the total value of the amount of water contained in the sample and the amount of volatile components that volatilize under the above drying conditions to the sample weight. Refers to (% by weight). That is, the dry weight loss (% by weight) can be expressed by the following formula.
Dry weight loss (% by weight) =
{(Weight of sample before complete drying)-(Weight of sample after complete drying)} x 100 / Weight of sample before complete drying

The pH adjuster (component (c)) contained in the third tobacco filling comprises potassium carbonate, sodium hydrogen carbonate or a mixture thereof. These pH adjusters adjust the pH of the third tobacco filling to the alkaline side, thereby promoting the release of the flavor component contained in the third tobacco filling from the tobacco granules, and satisfy the user. Brings the taste you get.
The raw material mixture of the third tobacco filler may usually contain a pH adjuster in an amount of 5% by weight or more and 20% by weight or less.

The binder (component (d)) contained in the third tobacco filling is for binding the tobacco granule components to maintain the integrity of the tobacco granules. The binder is composed of pullulan, hydroxypropyl cellulose (HPC) or a mixture thereof.
The raw material mixture of the third tobacco filling can usually contain the binder in an amount of 0.5% by weight or more and 15% by weight or less.

The aerosol-forming substrate (component (e)) contained in the third tobacco filling is for producing an aerosol. The aerosol-forming substrate is composed of a polyhydric alcohol, which may include glycerin, propylene glycol, sorbitol, xylitol and erythritol. These polyhydric alcohols can be used alone or in combination of two or more.
The content of the aerosol-forming base material in the raw material mixture of the third tobacco filling can be 5% by weight or more and 15% by weight or less.
Further, as the additional component, (f) a flavoring material (solid or liquid) other than the flavoring component can be mentioned. Such flavoring materials include sugar (sucrose, fructose, etc.), cocoa powder, carob powder, coriander powder, licorice powder, orange peel powder, rose pip powder, chamomile flower powder, lemon verbena powder, peppermint powder, leaf powder. , Spearmint powder, black tea powder, menthol, etc. are included.
The raw material mixture of the third tobacco filling can usually contain the above flavoring material in an amount of 0.5% by weight or more and 30% by weight or less. The flavoring material may be added to the ingredients by directly kneading the ingredients (a), (b), (c), (d) and (e), or a known clathrate such as cyclodextrin. It may be added to the above component by supporting it on a contact host compound to prepare an inclusion compound and then kneading it with the above component.
When the third tobacco filling comprises the above components (a), (b), (c), (d) and (e), the raw material mixture of the third tobacco filling contains the component (a). , Usually, it can be contained in an amount of about 33% by weight or more (about 90% by weight or less).

The third tobacco filling is obtained by mixing the components (a), (c), (d) and (e), and optionally the component (f), adding the component (b) to the mixture and kneading. It is obtained by granulating (long columnar) the kneaded product with a wet extrusion granulator and then sizing it into short columns or spheres. The average particle size (D50) of the obtained tobacco granules is usually 0.2 mm or more and 1.2 mm or less, preferably 0.2 mm or more and 1.0 mm or less, and 0.2 mm or more and 0.8 mm or less. The following is more preferable.
In extrusion granulation, it is preferable to extrude the kneaded product at an ambient temperature at a pressure of 2 kN or more. By extruding at this high pressure, the temperature of the kneaded product at the outlet of the extruder and granulator rises momentarily from the ambient temperature to, for example, 90 ° C. or higher and 100 ° C. or lower, and the water content and volatile components are 2% by weight or more. Evaporates to 4% by weight or less. Therefore, the water to be blended to make the kneaded product can be used in an amount larger than the desired water content in the final product, the tobacco granules, by the amount of evaporation.

Tobacco granules obtained by extrusion granulation may be further dried if necessary for moisture adjustment. For example, the dry weight loss of tobacco granules obtained by extrusion granulation is measured, and if it is higher than the desired dry weight loss (eg, 5% by weight or more, 17% by weight or less), the tobacco is obtained to obtain the desired dry weight loss. The granules may be further dried. The drying conditions (temperature and time) for obtaining the desired drying weight loss shall be set in advance based on the drying conditions (temperature and time) required to reduce the drying weight loss by a predetermined value. Can be done.

The third tobacco filling can consist only of the above tobacco granules, but can also include additional tobacco materials. Additional tobacco material is usually tobacco leaf chopped or finely ground. The additional tobacco material can be used in admixture with the tobacco granules according to the embodiments of the present invention.

<Manufacturing method of tobacco filling>
The method for producing a tobacco filling according to an embodiment of the present invention relates to the method for producing a first to third tobacco filling described above.
In the method for producing a tobacco filler according to the embodiment of the present invention, all of the first to third tobacco fillers contain a lipid, and the ratio of saturated fatty acids having 16 to 18 carbon atoms in the lipid is 50 weight by weight. The step of adding an aerosol stabilizer in an amount of% or more to the tobacco material before or after molding is included.
When the aerosol stabilizer is added to the tobacco material before molding, the aerosol stabilizer can be uniformly added to the tobacco material depending on the mode of addition.
In the case of the first and third tobacco fillings, the above aerosol stabilizer is mixed with other materials such as crushed tobacco leaves, chopped tobacco, and crushed sheet tobacco during the preparation of the tobacco filling. Aerosol stabilizer can be uniformly added to the tobacco material before molding.
In the case of the second tobacco filling, the above aerosol stabilizer is added to the tobacco material by mixing the above aerosol stabilizer with the raw material tobacco material (crushed tobacco leaves, etc.) at the time of preparing the tobacco sheet. Can be done. Specifically, in the case of the papermaking described above, the above aerosol stabilizer is mixed with the concentrated solution of the water extract in the step 4) and added to the papermaking sheet to obtain the above aerosol stabilizer. Can be added to the tobacco material before molding.
In the case of producing by the slurry method described above, in the step 1), in addition to water, pulp, a binder and crushed tobacco leaves, the above aerosol stabilizer can be uniformly added to the tobacco material before molding.
In the case of obtaining the non-woven tobacco sheet described above, in the step 1), when the powdery granular tobacco leaves and the binder are mixed, the above aerosol stabilizer is also mixed to stabilize the above aerosol. The agent can be uniformly added to the tobacco material before molding.
It is preferable to uniformly add the above aerosol stabilizer to the tobacco material before molding because the flavor and taste are stabilized.

When the aerosol stabilizer is added to the molded tobacco material, the aerosol stabilizer can be added to the surface of the tobacco material. As a method thereof, an aerosol stabilizer may be sprayed or applied to the surface of a molded product of a tobacco material by an appropriate means. Since the aerosol stabilizer is added to the surface of the tobacco material, the aerosol stabilizer can be transferred into the aerosol without considering the internal diffusion in the tobacco material, and the transfer rate is increased, which is preferable.
In the case of the first tobacco filling, the aerosol stabilizer can be added to the surface of the rod-shaped tobacco material (granule in the case of the third tobacco filling) by the above method.
In the case of the second tobacco filling, the aerosol stabilizer can be added to the surface of the rod-shaped tobacco material formed by rolling up one or more tobacco sheets by the above method.

Through the above steps, the tobacco filling according to the following aspect (1) or (2) can be produced.
(1) The tobacco filling of any of the above-mentioned (1) or (2) is added to the surface of the molded product of the tobacco material, and (2) is uniformly added to the tobacco material. By further winding the molded product with rolling paper, it can be used for non-combustion heat-not-burn tobacco.
Then, by wrapping the molded tobacco filling with rolling paper, a tobacco rod to be used for non-combustion heating type tobacco can be produced. A known winding device can be used for winding.
The composition of the wrapping paper is not particularly limited, and a general one can be used. For example, as the base paper used for the wrapping paper, cellulose fiber paper can be used, and more specifically, hemp or wood or a mixture thereof can be mentioned. The term "rolling paper" as used herein is for wrapping a tobacco filling material.
The wrapping paper may contain a filler, and the type of filler is not limited, such as metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide and aluminum oxide, barium sulfate, calcium sulfate and the like. Examples include metal sulfates, metal sulfides such as zinc sulfide, quartz, kaolin, talc, keiso soil, gypsum, etc., and in particular, calcium carbonate is contained from the viewpoint of improving whiteness / opacity and increasing the heating rate. Is preferable.
The blending ratio of the filler in the wrapping paper is not particularly limited, and is usually 1% by weight or more and 50% by weight or less, preferably 5% by weight or more and 45% by weight or less, and 10% by weight or more. It is more preferably 42% by weight or less, and particularly preferably 20% by weight or more and 40% by weight or less. For example, when the content of calcium carbonate is determined, it can be determined by measuring the ash content or by quantifying calcium ions after extraction.
If it is below the lower limit of the above range, the rolling paper is likely to be burnt, and if it exceeds the upper limit, the strength of the rolling paper is greatly reduced, and the winding property may be deteriorated.

Various auxiliary agents other than the base paper and the filler may be added to the wrapping paper, and for example, a water resistance improving agent can be added in order to improve the water resistance. Water resistance improvers include wet paper strength enhancers (WS agents) and sizing agents. Examples of the wet paper strength enhancer include urea formaldehyde resin, melamine formaldehyde resin, and polyamide epichlorohydrin (PAE). Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a saponification degree of 90% or more.
As an auxiliary agent, a paper strength enhancer may be added, and examples thereof include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, and polyvinyl alcohol. In particular, it is known that the air permeability of oxidized starch is improved by using a very small amount (Japanese Patent Laid-Open No. 2017-218669).
Further, the rolling paper may be appropriately coated.

A coating agent may be added to at least one of the two front and back surfaces of the wrapping paper. The coating agent is not particularly limited, but a coating agent capable of forming a film on the surface of the paper and reducing the permeability of the liquid is preferable. For example, alginic acid and salts thereof (eg sodium salts), polysaccharides such as pectin, ethyl cellulose, methyl cellulose, carboxymethyl cellulose, cellulose derivatives such as nitrocellulose, starch and derivatives thereof (eg carboxymethyl starch, hydroxyalkyl starch and cationic starch). Such ether derivatives, ester derivatives such as starch acetate, starch phosphate and starch octenyl succinate) can be mentioned.

The basis weight of the wrapping paper is usually 20 g / m ² or more and 45 g / m ² or less, and ^{preferably 20 g / m 2} or more and 45 g / m ² or less. Within this range, appropriate strength and hoistability can be maintained.
The air permeability of the wrapping paper is usually 0 cholesterol unit or more and 120 cholesterol unit or less, preferably 5 cholesterol unit or more and 100 cholesterol unit or less, and more preferably 10 cholesterol unit or more and 80 cholesterol unit or less. Within this range, appropriate strength and taste can be maintained.

<Non-combustion heating type tobacco>
As one embodiment of the non-combustion heat-not-burn tobacco according to the embodiment of the present invention, for example, the one having the configuration of FIG. 1 can be mentioned.
The non-combustion-heated tobacco 1 of FIG. 1 has a tobacco rod composed of a tobacco filling 10 and a wrapping paper (not shown) for wrapping the tobacco filling 10, and an end portion opposite to the tobacco rod. It has a constituent mouthpiece portion 11, and the tobacco rod and the mouthpiece portion are connected by using the same or different rolling paper 12 (chip paper in FIG. 1) as or different from the rolling paper for wrapping the tobacco filling. There is.
The embodiment of FIG. 1 uses the above-mentioned first tobacco filling as the tobacco filling. The length of the chopped tobacco (chopped tobacco leaf or chopped homogenized sheet: for example, width of 0.5 mm or more and 2.0 mm or less) contained in the first tobacco filling is 1.0 mm or more. It is often about 4.0 mm or less, and these notches are often arranged in a random orientation in the tobacco filling. On the other hand, it is also possible to process the notch length to substantially the same length as the length of the tobacco rod, and arrange and fill the notches in the same direction as the longitudinal direction of the tobacco rod.
As shown in FIG. 1, the mouthpiece unit 11 may include an aerosol cooling unit (also simply referred to as a cooling unit) 13 and a filter unit 14. Further, a chip paper 12 is provided as a wrapping paper for connecting these. Although the mouthpiece portion 11 is composed of two segments in FIG. 1, the mouthpiece portion 11 may be composed of a single segment, may be composed of three segments, or may be composed of four. It may be composed of the above segments. Further, the segment constituting the mouthpiece portion may be configured to include both the cooling portion and the filter portion as shown in FIG. 1, or may be configured from only one of them.

Although not shown in FIG. 1, a support portion may be arranged immediately downstream of the tobacco rod and between the cooling portion 13. When the support portion is provided, the support portion is arranged in contact with the rear end of the tobacco rod. The support portion may be, for example, a hollow cellulose acetate tube. In other words, the support portion may be formed by penetrating a center hole in the center of the cross section of the columnar cellulose acetate fiber bundle. Further, the support portion may be, for example, a metallic net having a mesh mesh of 5 mesh or more and 35 mesh or less. When the heater member of the electroheating device of the aspect of FIG. 3 described below pierces the tobacco rod, the support portion is located on the downstream side of the tobacco filling in the non-combustion heating type tobacco toward the cooling portion 13. It is an element to prevent being pushed into. It is desirable that the support portion 13 has a low ventilation resistance and a low aerosol filtration capacity, in addition to a function of preventing the tobacco filling from being pushed downstream. The support portion also functions as a spacer for separating the non-combustion heating type tobacco cooling portion 13 from the tobacco rod.

As the vapor containing the aerosol-forming base material and the tobacco flavor component generated by heating the tobacco rod passes through the cooling unit 13, it comes into contact with the air in the cooling unit 13 and is cooled to be liquefied. Aerosol is produced.
In FIG. 1, the non-combustion heat-not-burn tobacco 1 has a cooling unit 13 and a part of a rolling paper 12 (chip paper) covering the periphery of the cooling unit 13 having micropores for taking in air from the outside. Good (not shown). Due to the presence of such micropores, air flows into the cooling unit 13 from the outside during use, and the vapor containing the aerosol-forming base material and the tobacco flavor component generated by heating the tobacco rod is generated. When it comes into contact with air from the outside and the temperature drops, it liquefies, and the formation of aerosol becomes more reliable. The micropores preferably have a diameter of 100 μm or more and 1000 μm or less. The micropores are preferably substantially circular or substantially elliptical, and in the case of substantially elliptical shape, the diameter represents a major axis. The number of micropores may be one or a plurality. In the case of a plurality, it is preferable to form a row on the circumference of the wrapping paper 12 (chip paper).
The cooling unit 13 may be, for example, a thick paper processed into a cylindrical shape. In this case, the inside of the cylinder is hollow, and the vapor containing the aerosol-forming base material and the tobacco flavor component comes into contact with the air in the cavity and is cooled. When the micropores are arranged, the vapor comes into contact with the outside air in the cavity to further increase the cooling effect, and a sheet-shaped member such as paper, polymer film, or metal leaf is inside the cylinder. May be filled with gathered material. In this case, the steam can be cooled by utilizing the specific heat of these members.

Examples of the filter unit 14 include those using cellulose acetate tow as a material. The single yarn fineness and total fineness of cellulose acetate tow are not particularly limited, but in the case of a filter portion having a circumference of 22 mm, the single yarn fineness is preferably 5 g / 9000 m or more and 12 g / 9000 m or less, and the total fineness is 12000 g /. It is preferably 9000 m or more and 30,000 g / 9000 m or less. The cross-sectional shape of the fibers of the cellulose acetate tow may be a Y cross section or an R cross section. In the case of a filter filled with cellulose acetate tow, triacetin may be added in an amount of 5% by weight or more and 10% by weight or less based on the weight of the cellulose acetate tow in order to improve the hardness of the filter.
Further, the filter unit 14 may be composed of a so-called paper filter made of pulp.
Although the filter unit 14 is composed of a single segment in FIG. 1, it may be composed of a plurality of segments. When it is composed of a plurality of segments, for example, a hollow segment is arranged on the upstream side, and the cross section of the mouthpiece is filled with cellulose acetate tow as a segment on the downstream side (the mouthpiece end side of the user). it can. According to such an aspect, it is possible to prevent unnecessary loss of the produced aerosol and to improve the appearance of the non-combustion heat-not-burn tobacco.
Further, in the manufacture of the filter, the adjustment of the ventilation resistance and the addition of additives (known adsorbents, fragrances, fragrance holders, etc.) can be appropriately designed.
The material of the wrapping paper 12 (chip paper) is not particularly limited, and paper made of general vegetable fibers (pulp), sheets using polymer-based (polypropylene, polyethylene, nylon, etc.) chemical fibers, and polymers. A system sheet, a metal foil such as an aluminum foil, or the like can be used.
The thickness of the wrapping paper 12 is not particularly limited, but is usually 30 μm or more, preferably 35 μm or more, from the viewpoint of the delivery amount of the aerosol and the appropriateness of production. On the other hand, it is usually 150 μm or less, preferably 140 μm or less.
The basis weight of the wrapping paper 12 is not particularly limited, but is usually 30 g / m ² or more, preferably 35 g / m ² or more, from the viewpoint of the delivery amount of the aerosol and the appropriateness of production. On the other hand, it is usually 150 g / m ² or less, and ^{preferably 140 g / m 2} or less.
The air permeability of the wrapping paper is not particularly limited, but is preferably 10 cholesterol units or less from the viewpoint of the delivery amount of aerosol and the appropriateness of production.
The wrapping paper may be fixed after being wrapped around the tobacco rod, the cooling portion 13, the filter portion 14, and the support portion if necessary, using, for example, vinyl acetate-based glue.

In the embodiment shown in FIG. 1, the length of the non-combustion heat-not-burn tobacco 1 in the longitudinal direction is preferably 40 mm or more and 100 mm or less, more preferably 40 mm or more and 80 mm or less, and 45 mm or more. It is more preferably 60 mm or less. The circumference of the non-combustion heat-not-burn tobacco is preferably 15 mm or more and 25 mm or less, more preferably 17 mm or more and 24 mm or less, and further preferably 21 mm or more and 23 mm or less. Further, in the embodiment shown in FIG. 1, the length of the tobacco rod is about 12 mm, the length of the cooling portion is about 20 mm, the length of the support portion is about 8 mm, and the length of the filter portion is about 7 mm. However, the length of each of these individual segments can be appropriately changed according to manufacturing suitability, required quality, and the like.

As a second embodiment of the non-combustion heat-not-burn tobacco of the present invention, a bowl-shaped container having a through hole on the bottom surface, the above-mentioned tobacco filling filled in the container, and the upper surface of the container are covered and penetrated during use. Examples thereof include those having a hole forming portion for forming a hole and a lid having a heater. The shape of the container is not particularly limited, but it is desirable that the container has a shape that can be inserted into the recess of the housing of the electrically heated tobacco product described later. For example, an embodiment in which the side surface is tapered toward the bottom surface can be mentioned.
The through hole of the bottom surface has a diameter such that the tobacco filling does not leak to the outside. In the second embodiment of the non-combustion heat-not-burn tobacco of the present invention, the container filled with the first tobacco filling or the second tobacco filling can be exemplified.

<Electric heating type tobacco products>
<First Embodiment>
The first embodiment of the heat-not-burn tobacco product is an electric heating type device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member, and the heater. An electrically heated tobacco product comprising the non-combustion heated tobacco of the first embodiment described above, which is inserted so as to come into contact with a member.
An aspect of the electrically heated tobacco product may be an embodiment of heating the outer peripheral surface of the non-combustion heating type tobacco as shown in FIG. 2, and the tobacco rod portion in the non-combustion heating type tobacco as shown in FIG. It may be a mode of heating from the inside of the. The electrically heated device 2 shown in FIGS. 2 and 3 is provided with an air introduction hole, but is not shown here. Hereinafter, the electrically heated tobacco product will be described with reference to FIG.
The electric heating type tobacco product 3 is used by being inserted into a heater member 23 arranged inside the electric heating type device 2 so that the non-combustion heating type tobacco 1 described above comes into contact with the heater member 23.
The electrically heating device 2 has, for example, a battery unit 20 and a control unit 21 inside a resin skeleton 22.
When the non-combustion heating type tobacco 1 is inserted into the electric heating type device 2, the outer peripheral surface of the tobacco rod portion comes into contact with the heater member 23 of the electric heating type device 2, and eventually the entire outer peripheral surface of the tobacco rod portion and the winding portion A part of the outer peripheral surface comes into contact with the heater member.
The heater member 23 of the electric heating type device 2 generates heat under the control of the control unit 20. When the heat is transferred to the tobacco rod portion of the non-combustion heating type tobacco, the aerosol-forming base material and flavor components contained in the tobacco filling of the tobacco rod portion are volatilized.

The heater member may be, for example, a sheet heater, a flat plate heater, or a tubular heater. The sheet-shaped heater is a flexible sheet-shaped heater, and examples thereof include a heater containing a heat-resistant polymer film (thickness of about 20 to 225 μm) such as polyimide. The flat plate heater is a rigid flat plate heater (thickness of about 200 to 500 μm), and examples thereof include a heater having a resistance circuit on a flat plate base material and having the portion as a heat generating portion. The tubular heater is a hollow or solid tubular heater (thickness of about 200 to 500 μm), and examples thereof include a heater having a resistance circuit on the outer peripheral surface of a cylinder made of metal or the like and having the portion as a heat generating portion. .. Further, a rod-shaped heater made of metal or the like having a resistance circuit inside and having the portion as a heat generating portion, and a cone-shaped heater can also be mentioned. The cross-sectional shape of the tubular heater may be a circle, an ellipse, a polygon, a polygon with rounded corners, or the like.
In the case of heating the outer peripheral surface of the non-combustion heating type cigarette as shown in FIG. 2, the above-mentioned sheet-shaped heater, flat plate-shaped heater, and cylindrical heater can be used. On the other hand, in the case of heating from the inside of the tobacco rod portion in the non-combustion heating type tobacco as shown in FIG. 3, the above-mentioned flat plate heater, columnar heater, and cone heater can be used.
The length of the heater member in the major axis direction can be within the range of L ± 5.0 mm, where L mm is the length of the tobacco rod portion in the major axis direction. The length of the heater member in the major axis direction sufficiently transfers heat to the tobacco rod portion and sufficiently volatilizes the aerosol-forming base material and flavor components contained in the tobacco filling, that is, from the viewpoint of aerosol delivery, L mm. The above is preferable, and from the viewpoint of suppressing the generation of components that have an undesired effect on the taste and the like, L + 0.5 mm or less, L + 1.0 mm or less, L + 1.5 mm or less, L + 2.0 mm or less, L + 2.5 mm or less, L + 3 It is preferably 0.0 mm or less, L + 3.5 mm or less, L + 4.0 mm or less, L + 4.5 mm or less, or L + 5.0 mm or less.

The heating intensity such as the heating time and the heating temperature of the non-combustion heating type tobacco by the heater member can be set in advance for each electric heating type tobacco product. For example, by inserting a non-combustion-heated tobacco into an electrically-heated device and then performing preheating for a certain period of time, the temperature of the outer peripheral surface of the portion of the non-combustion-heated tobacco inserted into the device becomes X ( It can be set in advance so that it is heated to (° C.) and then the temperature is maintained at a constant temperature of X (° C.) or lower.
The X (° C.) is preferably 80 ° C. or higher and 400 ° C. or lower from the viewpoint of the amount of aerosol delivered. Specifically, 80 ° C, 90 ° C, 100 ° C, 110 ° C, 120 ° C, 130 ° C, 140 ° C, 150 ° C, 160 ° C, 170 ° C, 180 ° C, 190 ° C, 200 ° C, 210 ° C, 220 ° C, 230 ° C, 240 ° C, 250 ° C, 260 ° C, 270 ° C, 280 ° C, 290 ° C, 300 ° C, 310 ° C, 320 ° C, 330 ° C, 340 ° C, 350 ° C, 360 ° C, 370 ° C, 380 ° C, 390 ° C , 400 ° C.
The above range can be mentioned as the temperature of the heater member, but the temperature of the non-combustion heating type tobacco according to the embodiment of the present invention inserted into the heater member of the above electric heating type tobacco product is approximately 250 ° C. to 400 ° C. It is preferable to be heated. The fact that the non-combustion heat-not-burn tobacco according to the embodiment of the present invention is heated in such a temperature range contributes to maintaining good stability of the aerosol during use.
By heating by the heater member, the vapor containing the aerosol-generating base material and the flavor component generated from the tobacco rod portion reaches the user's oral cavity through the mouthpiece portion composed of the cooling portion, the filter portion, and the like.

<Electric heating type tobacco product of the second embodiment>
The second embodiment of the electrically heated tobacco product uses the non-combustion heated tobacco of the second embodiment described above, and has a power supply, a control unit, and a housing for accommodating them. The housing has a recess for accommodating the non-combustion heat-not-burn tobacco of the second embodiment and a ventilation hole. Further, the electrically heated tobacco product according to the second embodiment has a removable mouthpiece for sucking an aerosol generated from the non-combustion heating type tobacco housed in the recess and a flavor component.
The mouthpiece has an electrical contact that electrically connects to the lid of the non-combustion heat-not-burn tobacco container, and when the mouthpiece is attached to the housing, it electrically connects to the heater of the lid of the container. In addition, the connection also electrically connects to the control unit housed in the housing.
The user installs the second non-combustion heat-not-burn tobacco in the recess of the housing of the heat-not-burn tobacco product, and attaches the mouthpiece to the heat-not-burn tobacco housing. When the mouthpiece is attached to the housing of the electrically heated cigarette, the hole-forming portion of the lid of the container opens, and the mouthpiece of the mouthpiece and the flow path of the container communicate with each other. The user presses a switch installed on the heat-not-burn tobacco to supply electric power from the power source to the heater via the control unit, and the heated heater heats the container of the non-combustion heat-not-burn tobacco. When the container is heated, the aerosol-forming base material and the flavor component are volatilized from the tobacco filling in the container to generate an aerosol. By the suction operation by the user, air flows in from the ventilation hole of the electrically heated tobacco housing, and air also flows into the container through the through hole of the bottom surface of the non-combustion heated tobacco container. Both the air and the aerosol containing the generated flavor component are sucked by the user through the mouthpiece.

<Electric heating type tobacco product of the third embodiment>
An electrically heated tobacco product that heats non-combustion-heated tobacco by induction heating will be described.
The electric heating type tobacco product 4 for heating non-combustion heating type tobacco by induction heating includes an inductor 33 and an inductor instead of the heater member 23 of the electric heating type tobacco product according to the first embodiment shown in FIG. A battery unit 30 for supplying electric power to the vehicle and operating the battery unit 30 and a control unit 31 for controlling the supply of electric power are provided (FIG. 4). The operation may be manual or may occur automatically in response to the user's insertion in a non-combustion heated cigarette inserted into the electroheated device 5.
The battery unit 30 supplies a DC current. The control unit 31 includes a DC / AC inverter for supplying a high frequency AC current to the inductor.
When the device operates, a high frequency alternating current passes through the induction coil that forms part of the inductor 33. As a result, the inductor 33 creates a fluctuating electromagnetic field.
The frequency of the electromagnetic field is preferably 1 MHz or more and 30 MHz or less, preferably 2 MHz or more and 10 MHz or less, for example, 5 MHz or more and 7 MHz or less.
The non-combustion heated tobacco 1'is designed to work with the use of an electrically operated electroheated device 5 to heat the tobacco filling inside a rod portion composed of the tobacco filling. It has a susceptor 35. As the material of the susceptor 35, any one of aluminum, iron, iron alloy, stainless steel, nickel, and nickel alloy can be exemplified.
The inductor 33 is located adjacent to the inner wall of the receiving chamber 34 of the non-combustion heated tobacco product.
At the time of use, the user inserts the non-combustion heat-not-burn tobacco 1'into the electric heating device 5 so that the portion having the susceptor 35 is located close to the inductor 33.
When the non-combustion heat-not-burn tobacco 1'is properly installed in the receiving chamber 34 of the electroheating device 5, the susceptor 35 of the non-combustion heat-not-burn tobacco 1'is located in the fluctuating electromagnetic field.
A fluctuating electromagnetic field creates an eddy current in the susceptor 35, which is heated as a result. Further heating is provided by the magnetic hysteresis loss in the susceptor 35.
The heated susceptor 35 heats the tobacco rod portion of the non-combustion heat-not-burn tobacco 1'to a temperature sufficient to form an aerosol. As the heating temperature at this time, an embodiment in which the tobacco rod portion is heated to 250 ° C. or higher and 400 ° C. or lower can be mentioned.
The aerosol produced by heating passes through the non-combustion heat-not-burn tobacco product and is sucked by the user.

The present invention will be described in more detail by way of examples, but the present invention is not limited to the description of the following examples as long as it does not deviate from the gist thereof.

<Experimental example 1> Examination by types of additives with different physical characteristics <Manufacturing of tobacco rods>
As a tobacco filler, a mixture of 15/100 g of an aerosol-forming base material (glycerin) in small pieces of sheet tobacco (papermaking sheet) was prepared in advance. As the tobacco chopping, a mixture of Burley, Yellow, and Orient = 4: 4: 2 (weight ratio) was used. The fatty acids or lipids shown in Table 1 were used as aerosol stabilizers. The aerosol stabilizers shown in Table 1 were dissolved in ethanol at a ratio of 0.1 to 1% by weight, and the mixture was pre-cut to 115 mm × 115 mm using a glass sprayer (tea 30 ml, type 4). The surface was uniformly sprayed and added so as to have the weight addition ratio shown in Table 1. A normal cigarette wrapping paper using 100% virgin pulp (70% by weight) and calcium carbonate (PCX850 manufactured by Shiraishi Kogyo Co., Ltd., 30% by weight) as a filler was prepared. Using a hand-wound injection machine (MUS20, Daughers & Ryan Inc.), 920 mg of the above-mentioned paper machine was made into a roll with a winding circumference of 22 mm and a winding length of 55 mm. This was used as the tobacco rod of Experimental Example 1.

<Making non-combustion heat-not-burn tobacco>
The tobacco rod of Experimental Example 1 produced by the above method was cut to a length of 12 mm. These tobacco rods are provided with a cooling section in which a center hole (8.0Y40000) of a support member (8.0Y40000) of 8 mm and a paper tube having a length of 20 mm are provided with diluted air holes (ventilation rate of 20%), and acetic acid having a length of 7 mm. A non-combustion heat-not-burn tobacco was produced by connecting a filter portion filled with cellulose fibers (5.0Y35000) by hand with rolling paper.

<Sensory evaluation test>
Each non-combustion heat-not-burn tobacco produced in Experimental Example 1 was subjected to a use test. As the electroheated tobacco product used in the use test, a product having the above-mentioned configuration was used. A use test was conducted by setting the heater temperature when the non-combustion heating type tobacco rod was inserted to 320 ° C. (cylindrical heater Φ3.2 mm). The sensory evaluation was conducted on an in-house panel of 10 people. Evaluation uses the Visual Analog Scale method (VAS method), "I do not feel at all", "Very weak", "Weak", "Slightly weak", "Neither" for tobacco feeling (cigarette-like), The evaluation was performed on an eight-point scale of "slightly strong,""strong," and "very strong." Tobacco sensation (cigarette-like) was evaluated as "a somatic sensation including a cigarette-like flavor and irritation." The maximum number of evaluations per day was 5, and additive-free lots were also evaluated for each evaluation day. The evaluation was made by starting smoking 30 seconds after the start of heating, then smoking at intervals of 30 seconds, and smoking was possible for up to 5 minutes. In order to perform a stable evaluation, it was excluded from the evaluation target for 2 minutes from the start of heating. It was decided to take a 5-minute break from the end of the evaluation to the evaluation of the next lot. Tobacco feeling (cigarette-like) was shown by subtracting the sensory evaluation result of the additive-free lot from the sensory evaluation result of the lot to which the substance shown in Table 1 was added.

<Measurement of solubility>
To measure the solubility, an excess amount of fatty acid that left undissolved residue was added to 2 g of glycerin, and the amount of fatty acid dissolved in glycerin was measured. When the amount of excess fatty acid to be added is large, it is not easy to separate the two layers, so it is necessary to add a slightly excessive amount. After adding the fatty acid, the mixture was allowed to stand for 48 hours, and after separating into two layers, 100 mg of glycerin was collected, dissolved in 2 ml of methanol, and the amount of fatty acid was quantified by GC-FID (model 7890A, Agilent).

<Measurement of the number of residues at the time of dilution and the median diameter of the number of particles>
In this experimental example, the median number of particles that can be measured by DMS (Differential Mobility Spectrometer, Cambustion) is an index for the generated aerosol particles to exist stably without volatilizing until they are delivered to the user's oral cavity. The diameter (Count Median Diameter) was used. Since the DMS measures the aerosol under reduced pressure (0.25 bar) and high dilution conditions, the highly volatile aerosol easily disappears and is gasified. In the case of an aerosol having relatively low volatility, although the aerosol shrinks due to volatilization, a particle size distribution can be obtained as a residual aerosol. At this time, if the produced aerosol particle size is the same, the particle size distribution of the residual aerosol differs depending on the amount of volatility. In this example, it was considered that the peak particle size based on the number indicates stability under reduced pressure and high dilution conditions, and was used as an index. The larger the central diameter of the number of particles, the more stable the aerosol exists, and the smaller the central diameter of the number of particles, the more unstable the aerosol. Under the experimental conditions, the primary dilution was performed at 25 L / min and the secondary dilution was performed at a setting of 200 times. Separately, Spraytec (Model STP5321, Mulvern) is used to measure the mass peak particle size immediately after the occurrence before dilution or decompression, and there is no difference in the type of additive and the range of the amount added in this example. There was a median diameter of the number of particles in the vicinity of about 200 nm.

<Test result>
Table 2 shows the test results. In addition, FIG. 5 shows the solubility with glycerin and the effect of tobacco sensation on each single fatty acid, and FIG. 6 shows the tobacco sensation when palmitic acid, which is a saturated fatty acid of C16, and oleic acid as a mixture are added. In addition to showing the effect of tobacco feeling when palm oil or candelilla wax, which is generally added as a lipid, is used. As is clear from FIG. 5, the highest tobacco sensation can be obtained when palmitic acid, which is a saturated fatty acid of C16, and stearic acid, which is a saturated fatty acid of C18, are used, and the effect is obtained with other single fatty acids. Low results were obtained. Moreover, since unsaturated fatty acids have a relatively high solubility in glycerin, it was clarified that even if they are C18, their effects are lower than those of saturated fatty acids. Although the effect was confirmed on the saturated fatty acid of C19, the amount of C19 is very small as a naturally occurring amount, and there is a manufacturing problem when using it. Therefore, it is considered that a high tobacco sensation can be obtained by adding saturated fatty acids corresponding to C16 to C18.
On the other hand, when palmitic acid, which is an unsaturated fatty acid, is added to palmitic acid, which is a saturated fatty acid of C16, it is found that the feeling of tobacco decreases with the addition, and under the condition that palmitic acid is less than 50% by weight as a percentage, it is found. The result was that the effect was not fully exhibited. A similar tendency can be confirmed in palm oil, which is a lipid containing 48% by weight of palmitic acid and stearic acid in total, and it is considered that the effect is not sufficient because the weight ratio of palmitic acid is insufficient. The DMS measurement results were found to be related to the tobacco sensation value, and the larger the median diameter of the number of DMS particles, the higher the tobacco sensation value. Among them, palmitic acid, which is a saturated fatty acid of C16, and stearic acid, which is a saturated fatty acid of C18, were found to have a large median number of particles, and were found to be effective in stabilizing aerosols.

<Experimental Example 2> Effect when the amount of C16 palmitic acid added was changed As the tobacco rod used in Experimental Example 2, palmitic acid, which is C16, was used as an aerosol stabilizer. Tobacco rods having the same dimensions as in Experimental Example 1 except that the amount of palmitic acid added by winding the tobacco filler was changed in the same manner as in Experimental Example 1, and the same sensory evaluation and measurement as in Experimental Example 1 were carried out. went.

<Test result>
The test levels and results are shown in Table 3 and FIG. In the test product in which only palmitic acid was added as a lipid in an amount of 0.1 to 1.9% by weight, the tobacco sensation (cigarette-like) was increased as compared with the test product in which no addition was added. If the amount of lipid added is too small, no effect can be expected, but if it is added in a large amount, the aerosol physical characteristics become excessively stable, and the original taste / aroma and somatic sensation cannot be felt. It is estimated to be. Therefore, the feeling of tobacco (cigarette-like) tended to decrease. From the results of this example and the comparative example, it is estimated that the range of the most preferable addition amount of the lipid containing the saturated fatty acid of C16 to 18 is approximately 0.1 to 1.9% by weight.

1, 1'Non-combustion heating type tobacco 10 Tobacco rod part 11 Mouth piece part 12 Chip paper 13 Cooling part 14 Filter part 2, 5 Electric heating type device 20, 30 Battery unit 21, 31 Control unit 22, 32 Frame 23 Heater member 33 inductor 34 receiving chamber 35 susceptor 3, 4 electrically heated tobacco products

Claims (19)

1. A tobacco filling for non-combustion heat-not-burn tobacco, which comprises a tobacco material and an aerosol-forming substrate, wherein an aerosol stabilizer containing a lipid is added to the tobacco filling, and the aerosol stabilizer is contained. A tobacco filler for non-combustible heat-not-burn tobacco, wherein the proportion of saturated fatty acids having 16 to 18 carbon atoms in the tobacco to be used is 50% by weight or more.
2. The non-combustion heat-not-burn tobacco product according to claim 1, wherein the amount of the aerosol stabilizer added to the tobacco filling is 0.1 to 5.0% by weight based on the dry weight of the total amount of the tobacco filling. Tobacco filling.
3. The tobacco filling for non-combustion heat-not-burn tobacco according to claim 1 or 2, wherein the solubility of the saturated fatty acid having 16 to 18 carbon atoms in glycerin is 0.13 mg / g or less.
4. The tobacco filling for non-combustion heat-not-burn tobacco according to any one of claims 1 to 3, wherein the saturated fatty acid having 16 to 18 carbon atoms is one or more selected from palmitic acid, stearic acid, and a mixture thereof. Stuff.
5. The tobacco filling for non-combustion heating type tobacco according to any one of claims 1 to 4, wherein the tobacco filling is a molded body of a tobacco material composed of tobacco chopped.
6. The tobacco filling for non-combustion heating type tobacco according to any one of claims 1 to 4, wherein the tobacco filling is a molded body of a tobacco material composed of a tobacco sheet.
7. The tobacco filling for non-combustion heating type tobacco according to any one of claims 1 to 4, wherein the tobacco filling is composed of a granular tobacco material.
8. The tobacco filler for non-combustion heat-not-burn tobacco according to claim 5 or 6, wherein the aerosol stabilizer is added to the surface of the molded product of the tobacco material.
9. The tobacco filler for non-combustion heat-not-burn tobacco according to any one of claims 5 to 7, wherein the aerosol stabilizer is uniformly added to the tobacco material.
10. A non-combustion heat-not-burn tobacco having a tobacco rod portion made of the tobacco filling according to any one of claims 1 to 9 and a mouthpiece portion forming an end portion opposite to the tobacco rod portion.
11. The non-combustion heating type cigarette according to claim 10, wherein the mouthpiece portion includes a cooling portion.
12. A non-combustion heat-not-burn tobacco comprising the tobacco filling according to claim 7 and a container containing the tobacco filling.
13. The non-combustion heating type tobacco according to claim 10 or 11, which has a susceptor for heating the tobacco filling inside the tobacco rod portion.
14. 10. Claim 10 of an electrically heating device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member, which are inserted so as to come into contact with the heater member. Consists of the non-combustion heating type tobacco according to any one of 1 to 12.
    An electrically heated tobacco product in which the tobacco rod portion of a non-combustion heated tobacco is heated to 250 to 400 ° C.
15. The electrically heated tobacco product according to claim 14, wherein the heater member has a cylindrical shape.
16. The non-combustion according to claim 13, wherein an electrically heating device including an inductor, a battery unit that supplies electric power to the inductor, and a control unit that controls the supply of electric power, and an electrically heated device that is inserted close to the inductor. Consists of heated tobacco,
    An electrically heated tobacco product in which the tobacco rod portion of a non-combustion heated tobacco is heated to 250 to 400 ° C.
17. Production of Tobacco Fillings Containing Lipids, Including the Step of Adding an Aerosol Stabilizer Containing a Lipid and A Saturated Fatty Acid with 16-18 Carbons in the Lipid to 50% by Weight or More, To Tobacco Material Before or After Molding. Method.
18. The method for producing a tobacco filler according to claim 17, wherein the step of adding the aerosol stabilizer to the tobacco material before molding is a step of mixing the tobacco material and the aerosol stabilizer.
19. The method for producing a tobacco filler according to claim 17, wherein the step of adding the aerosol stabilizer to the molded tobacco material is a step of spraying or applying the aerosol stabilizer to the molded tobacco material.

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