Tobacco composition containing saturated fatty acid additive

Abstract

To provide a tobacco composition that yields a tobacco filler capable of reducing discomfort.SOLUTION: The tobacco composition comprises (A) a tobacco material and (B) a saturated fatty acid additive, wherein the component (B) is selected from the group consisting of saturated fatty acids that have a molar mass of 200 to 350 g / mol, esters of the saturated fatty acids, and combinations thereof, and the tobacco composition contains the component (B) at 0.01 to 3 mass% per dry weight in the composition.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to tobacco compositions containing saturated fatty acid-based additives. [Background technology]

[0002] Non-combustion cigarettes have been developed as an alternative to conventional combustion cigarettes. The use of additives to improve the performance of non-combustion cigarettes has been proposed. For example, Patent Document 1 discloses the addition of lipids to promote the diffusion of volatile components. Patent Document 2 also discloses the addition of wax to enhance the release efficiency of volatile compounds.

[0003] In non-combustible tobacco, reducing the unpleasant sensation experienced when smoking (hereinafter simply referred to as "unpleasant sensation") is an important issue from the perspective of customer acceptance. While the aforementioned patent documents do not suggest reducing the unpleasant sensation, it has been proposed to reduce the unpleasant sensation by adding flavorings or selecting the appropriate tobacco composition. However, this method requires adjusting the composition ratio, etc., depending on the tobacco raw material used, and is therefore not very versatile. Therefore, other methods that can reduce the unpleasant sensation are needed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2018 / 215481 [Patent Document 2] Patent No. 6433626 Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above circumstances, an object of the present invention is to provide a tobacco composition that provides a tobacco filler that can reduce discomfort. [Means for solving the problem]

[0006] The inventors have solved the above problems by using a specific additive, that is, the above problems are solved by the present invention described below. Aspect 1 (A) a tobacco material; (B) a saturated fatty acid-based additive, the component (B) is selected from the group consisting of saturated fatty acids having a molar mass of 200 to 350 g / mol, esters of the saturated fatty acids, and combinations thereof; A tobacco composition comprising 0.01 to 3 mass % of component (B) based on the dry matter weight of the composition. Aspect 2 The composition according to embodiment 1, wherein the saturated fatty acid and saturated fatty acid ester in component (B) are each a single product. Aspect 3 Aspect 3. The composition according to aspect 1 or 2, wherein the saturated fatty acid of component (B) and the fatty acid moiety of the ester each have 12 to 20 carbon atoms. Aspect 4 Aspect 4. The composition according to any one of Aspects 1 to 3, further comprising 1 to 10% by mass of liquid sugar based on the dry matter weight of the composition. Aspect 5 A composition according to any one of aspects 1 to 4, comprising in component (A) no more than 10% by weight of material derived from Oriental species. Aspect 6 Aspect 6. The composition according to any one of aspects 1 to 5, further comprising 0.5 to 3% by mass of a natural plant-derived flavoring, based on the dry matter weight of the composition. Aspect 7 A composition according to any one of aspects 1 to 6, comprising 2% by mass or more of nicotine based on the dry matter weight of the composition. Aspect 8 A composition according to any one of aspects 1 to 6, comprising 1.5% by mass or less of nicotine based on the dry matter weight of the composition. Aspect 9 A composition according to any one of aspects 1 to 8, further comprising 12% or less by weight of an aerosol-forming substrate, based on the dry matter weight of the composition. Aspect 10 A sheet formed from the tobacco composition according to any one of aspects 1 to 9. Aspect 11 A step of mixing component (A), component (B) which is partly or entirely powder, and a medium so that the powder remains in a powder state to form a slurry; 11. A method for producing a tobacco composition according to any one of aspects 1 to 10, comprising: Aspect 12 12. The method of claim 11, further comprising adjusting the viscosity of the slurry to 100,000 to 200,000 (mPa·s). [Effects of the Invention]

[0007] The present invention can provide a tobacco composition that provides a tobacco filler that can reduce unpleasant sensations. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 shows an embodiment of a non-combustion heating tobacco flavor inhalation article. [Figure 2] FIG. 1 shows an embodiment of a non-combustion heating tobacco flavor inhalation system. [Figure 3] FIG. 1 shows another embodiment of a non-combustion heating type tobacco flavor inhalation article. DETAILED DESCRIPTION OF THE INVENTION

[0009] The tobacco composition comprises (A) a tobacco material and (B) a saturated fatty acid-based additive. The present invention will be described in detail below. In the present invention, "X to Y" includes the end values ​​X and Y.

[0010] 1. Tobacco composition (1) Tobacco material (component (A)) The tobacco composition contains a tobacco material as component (A). The tobacco material is a material derived from a Nicotiana plant. Specific tobacco materials include shredded dried tobacco leaves, ground leaf tobacco, and tobacco extracts (extracts made from water, organic solvents, or a mixture thereof). Ground leaf tobacco is a particle obtained by grinding leaf tobacco. The ground leaf tobacco preferably has an average particle size D50 of 30 to 120 μm, more preferably 50 to 100 μm. Grinding can be performed using a known grinder, either dry or wet grinding. Therefore, ground leaf tobacco is also referred to as leaf tobacco particles. In the present invention, the particle size and average particle size are determined by a laser diffraction / scattering method, specifically, using a laser diffraction particle size distribution analyzer (e.g., Horiba, Ltd. LA-950). The type of tobacco is not limited; flue-cured, burley, oriental, native, and other varieties of Nicotiana tabacum or Nicotiana rustica can be used.

[0011] The amount of component (A) in the tobacco composition is not particularly limited, and its lower limit can be 60% by mass or more, 70% by mass or more, 80% by mass or more, 90% by mass or more, 95% by mass or more, 97% by mass or more, 99% by mass or more, or 99.5% by mass or more, based on the dry matter weight of the tobacco composition, and its upper limit can be 99.9% by mass or less, 97% by mass or less, 95% by mass or less, 90% by mass or less, or 80% by mass or less.

[0012] Component (A) may contain materials derived from Oriental species. In this case, the content of the materials derived from Oriental species in component (A) is preferably 10% by mass or less. A content of the materials derived from Oriental species within this range can provide a smoking taste with a reduced unpleasant feeling. From this perspective, the upper limit of the content of the materials derived from Oriental species in component (A) is preferably 8% by mass or less, more preferably 5% by mass or less. The lower limit is preferably 0.1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more.

[0013] (2) Saturated fatty acid additive (ingredient (B)) The tobacco composition contains a saturated fatty acid additive as component (B). The saturated fatty acid additive is selected from the group consisting of saturated fatty acids having a molar mass of 200 to 350 g / mol, esters of the saturated fatty acids, and combinations thereof. The saturated fatty acid reduces the discomfort experienced during smoking. The saturated fatty acid ester is obtained from an alcohol and a saturated fatty acid having a molar mass of 200 to 350 g / mol, and therefore the molar mass of the ester varies depending on the molar mass of the alcohol. In one embodiment, the molar mass of the ester is 210 to 1300 g / mol. Because saturated fatty acid esters generally have a lower vapor pressure than fatty acids, the effect of reducing discomfort experienced during smoking is sustained throughout the entire smoking session. Hereinafter, the effect of reducing discomfort experienced during smoking will also be referred to simply as the discomfort reducing effect.

[0014] From the viewpoint of achieving the above-mentioned effects, the lower limit of the molar mass of the saturated fatty acid ester is preferably 240 g / mol or more, more preferably 270 g / mol or more, and the upper limit is preferably 1140 g / mol or less, 1112 g / mol or less, 300 g / mol or less, or 290 g / mol or less.

[0015] The content of component (B) is 0.01 to 3% by mass per dry weight of the composition (with the dry weight being 100% by mass). If the content is below the lower limit, the effect of reducing discomfort is insufficient, while if it exceeds the upper limit, the unpleasant odor increases. From this perspective, the lower limit of the content is preferably 1% by mass or more, and the upper limit is preferably 2% by mass or less. The dry weight is the weight excluding the medium described below, and is preferably the weight of the residue when the composition is dried at 100°C for 5 hours.

[0016] The number of carbon atoms in the saturated fatty acid and the fatty acid moiety in the ester is preferably 12 to 20, more preferably 15 to 19. When the number of carbon atoms is within this range, the effect of reducing discomfort becomes more pronounced.

[0017] The solubility of the saturated fatty acid in component (B) in water is preferably 0.15 mg / g or less, more preferably 0.12 mg / g or less. The lower limit is not limited and may be 0 mg / g, but is preferably 0.05 mg / g or more.

[0018] Specific preferred examples of the saturated fatty acid include octanoic acid, decanoic acid, myristic acid, palmitic acid, stearic acid, and nonadecanoic acid. Among these, palmitic acid, stearic acid, and nonadecanoic acid are preferred from the viewpoints of availability and the effect of reducing discomfort. The saturated fatty acid may be a mixture, but is preferably a single component rather than a mixture. In the present invention, a single component (single compound) includes both a pure compound and a compound containing unavoidable impurities. Therefore, in one embodiment, the saturated fatty acid consists solely of palmitic acid. When the saturated fatty acid is a single component, the dispersibility of the saturated fatty acid in the molded product, such as a sheet, is improved when the tobacco composition of the present invention is molded into the molded product.

[0019] Preferred specific examples of the esters of saturated fatty acids (hereinafter also simply referred to as "esters") include alkyl esters and sugar esters of the saturated fatty acids. The alkyl moiety is preferably derived from a linear, branched, or cyclic alkyl group having 1 to 10 carbon atoms, such as a methyl group. The sugar moiety is preferably derived from a disaccharide such as sucrose. Preferred examples of the esters include sucrose palmitate and methyl palmitate. The saturated fatty acid moiety in the ester is preferably derived from a single saturated fatty acid for the reasons described above. The alcohol moiety in the ester does not need to be a single component, but is preferably a single component for the reasons described above. The ester also functions as an emulsifier.

[0020] In one embodiment, component (B) contains the saturated fatty acid and the ester. In this case, there is an advantage that the discomfort-reducing effect can be maintained for a longer period of time. In addition, the type of component (B) can be appropriately selected depending on the component (A) used. Therefore, the present invention also has the advantage of being versatile.

[0021] It is preferable that a part or all of component (B) is a powder. When component (B) is a powder, the dispersibility of component (B) in a molded product such as a sheet is improved as described below. There are no limitations on the size, but for example, D50 is preferably 30 to 120 μm, more preferably 50 to 100 μm. Furthermore, from the viewpoint of the dispersibility, it is preferable that component (B) has a higher degree of crystallinity than waxes and natural fats and oils.

[0022] (3) Liquid sugar The tobacco composition may contain liquid sugar. Liquid sugar is sugar in liquid form. When the tobacco composition contains liquid sugar, it not only reduces the unpleasant feeling during smoking but also improves the sweetness sensation. From this perspective, the content of liquid sugar is preferably 1 to 10% by mass, more preferably 3 to 10% by mass, and even more preferably 5 to 8% by mass, based on the dry matter weight of the tobacco composition.

[0023] (4) Natural plant fragrance The tobacco composition may contain a natural plant-derived flavoring. When the tobacco composition contains a natural plant-derived flavoring, it not only reduces unpleasant sensations but also enhances the sweetness sensation. From this perspective, the content of the natural plant-derived flavoring is preferably 0.5 to 3 mass %, more preferably 2 to 3 mass %, based on the dry matter weight of the tobacco composition. While natural plant-derived flavorings known in the tobacco field can be used, licorice is preferred in the present invention. Licorice is a sweetener derived from Glycyrrhiza glabra, a member of the genus Glycyrrhiza in the family Fabaceae.

[0024] (5) Nicotine The amount of nicotine contained in the tobacco composition is not limited, but in one embodiment, it can be 2% by mass or more based on the dry matter weight of the composition. Generally, as the amount of nicotine increases, the unpleasant feeling when smoking tends to increase. However, in the present invention, as described above, the unpleasant feeling is reduced, so the effects of the present invention are more pronounced when the nicotine amount is within the above range. The upper limit of the nicotine amount is not limited, but in reality it is 3% by mass or less.

[0025] In another embodiment, the amount of nicotine can be 1.5% by mass or less. A nicotine amount within this range can provide a milder smoking flavor. There is no lower limit to the amount of nicotine, but in reality it is 0.1% by mass or more. The nicotine contained in the tobacco composition may be derived from component (A) or from other components.

[0026] (7) Aerosol-generating substrate An aerosol-generating substrate is a material that generates an aerosol by vaporizing when heated and cooling, or by atomizing. Known aerosol-generating substrates can be used, including polyhydric alcohols such as glycerin, vegetable glycerin, and propylene glycol (PG), as well as triethyl citrate (TEC) and triacetin. The amount of the aerosol-generating substrate is preferably 12% by mass or less, more preferably 11% by mass or less, based on the dry matter weight of the tobacco composition. The lower limit is not limited, and may be 0% by mass, but is preferably 1% by mass or more. If the amount of the aerosol-generating substrate exceeds the upper limit, it may be difficult to manufacture the aerosol-generating substrate into a sheet or the like, while if it is less than the lower limit, the perceived smoke intensity may be reduced.

[0027] (8) Binder When a tobacco composition contains a binder, the strength of the composition is improved when it is molded into a sheet or other molded product. A binder is an adhesive that bonds fibers together. Binders known in the art can be used. Examples of binders include thickening polysaccharides such as gums, modified cellulose, and modified starch. The amount of binder is adjusted appropriately depending on the application, but can be, for example, about 1 to 10% by mass based on the dry matter weight of the tobacco composition.

[0028] (9) Fiber When a tobacco composition contains fibers, the strength of the formed product, such as a sheet, is improved. Examples of fibers include tobacco-derived cellulose fibers, non-tobacco-derived cellulose fibers, and cellulose powder. Examples of such fibers include pulp fibers. Pulp fibers are aggregates of cellulose fibers extracted from plants such as wood, and are typically used as a raw material for paper. Examples of pulp fibers include recycled paper pulp, chemical pulp, and mechanical pulp. From the perspective of mechanical strength and other aspects of the formed sheet, the amount of the fibers is preferably 1 to 20% by weight, more preferably 2 to 10% by weight, based on the dry weight of the tobacco sheet composition.

[0029] (10) Form of tobacco composition The tobacco composition is a mixture containing the above-mentioned components, and may be in any form, such as a solid, a paste, or a liquid.

[0030] 2. Method for producing tobacco composition The tobacco composition can be produced by any method. For example, it can be produced by mixing components (A) and (B), and optionally other components, using a known method. In this case, it is preferable to use powdered component (B) and mix it so that the powder state is maintained. In a tobacco composition produced in this manner, component (B) has good dispersibility. Good dispersibility means that component (B) is uniformly dispersed. The mixing step is preferably carried out at a temperature below the melting point of component (B). For example, this step can be carried out at a temperature of 10 to 50°C.

[0031] The tobacco composition can be diluted with a medium to form a slurry containing the tobacco composition. The slurry is preferably produced by a method comprising the following steps: A step of mixing component (A), component (B) which is partly or entirely in powder form, and a medium so that the powder remains in a powder state to form a slurry. In this manufacturing method, the slurry is prepared while component (B) remains in a powder state. This improves the dispersibility of component (B) when formed into a compact. The size of the powder is as described above. "Component (B) remains in a powder state" means that part or all of component (B) remains in a powder state.

[0032] The medium may be water or a hydrophilic organic solvent, but water is the most preferred medium in terms of handling.

[0033] This method preferably includes a step of first converting a material that is solid at room temperature into powder by pulverization or the like, and then mixing these to obtain a powder mixture, and then mixing a material that is liquid or pasty at room temperature, such as a medium, to obtain a liquid mixture, and then mixing the powder mixture and the liquid mixture.

[0034] From the viewpoint of dispersing the powdered component (B) well in the medium, the viscosity of the slurry at 25° C. is preferably 100,000 to 200,000 (mPa s). The viscosity is measured using a Brookfield DV-I prime viscometer with a spindle No. LV4 at a rotation speed of 1.0 rpm.

[0035] The thus obtained slurry containing the tobacco composition is useful as a raw material for sheets, as described below, and is also useful as an additive for tobacco flavor inhalation articles such as tobacco fillers, wrappers, and filters. The medium in the slurry is not a component of the tobacco composition. In one aspect, the amount of the tobacco composition in the slurry is preferably 3 to 15% by mass, and in another aspect, it is preferably 50 to 90% by mass.

[0036] 3. Sheet A sheet can be produced from the tobacco composition of the present invention. That is, the tobacco composition may be a sheet-shaped tobacco composition. Hereinafter, such a sheet will also be referred to as a "tobacco sheet." The tobacco sheet can be produced by any method, but is preferably produced by the following method.

[0037] (1) Casting method The method includes a slurry preparation step of preparing a slurry containing the tobacco composition, a casting step of casting the composition onto a substrate to prepare a wet sheet, and a drying step of drying the wet sheet. (1-1) Slurry preparation process This step can be carried out as described above. The content of the tobacco composition in the slurry obtained in this step is preferably about 3 to 15% by weight. Particularly preferred embodiments are described below. 1) Tobacco leaves or lamina are pulverized as component (A) to obtain a pulverized product having a D90 of about 100 μm or more. 2) Pulverize component (B). 3) Crush the reinforcing material (pulp, etc.). 4) The powdered materials obtained in 1) and 2) are mixed to obtain a powder mixture. 5) Liquid or paste-like materials such as a medium and an aerosol-generating base material are mixed to obtain a liquid mixture. 6) Add 3) to 5) and disperse. 7) Add 4) to 6) and mix.

[0038] (1-2) Casting process In this step, the slurry is cast onto a substrate to form a wet sheet. Casting can be carried out in a known manner.

[0039] (1-3) Drying process In this step, the wet sheet is dried to obtain a tobacco sheet. Drying conditions are preferably 50 to 100°C, and the drying time can be 5 to 60 minutes. The tobacco sheet obtained by this method is also called a "cast sheet."

[0040] (2) Rolling method The method includes a slurry preparation step of preparing a slurry containing the tobacco composition, a rolling step of preparing a wet sheet from the composition and rolling it out, and a drying step of drying the wet sheet. As a preferred embodiment, a case where single leaves are ground and used as component (A) will be described. (2-1) Slurry preparation process 1) Crushing A single leaf is prepared as component (A) and crushed. Then, the mixture is finely crushed using a crusher (e.g., ACM-5 manufactured by Hosokawa Micron). The particle size (D90) after crushing is preferably 50 to 800 μm. The particle size is measured using a laser diffraction particle sizer such as Mastersizer (manufactured by Malvern).

[0041] 2) Preparation of wet powder Component (B) and, if necessary, additives such as binders, flavorings, or lipids are added to ground component (A) (e.g., tobacco particles) and mixed. This mixing is preferably a dry blend, and a mixer is preferably used as the mixer. Next, a medium such as water, and, if necessary, an aerosol-generating base such as glycerin, are added to the dry blend and mixed in a mixer to prepare a wet powder (powder in a wet state). The amount of medium in the wet powder can be 20 to 80% by weight, preferably 20 to 40% by weight, but may be 20 to 50% by weight since the wet powder is then expanded by compression. The tobacco composition content in the wet powder is preferably 50 to 90% by weight. This step is preferably carried out so that component (B) remains in a powder state.

[0042] 3) Mixing The wet powder is kneaded using a single- or multi-screw kneader, such as a kneader (Dalton DG-1, etc.). Kneading is preferably carried out until the medium is distributed throughout the mixture, for example, until the color of the mixture is visually uniform. This step is also preferably carried out so that component (B) remains in a powder state.

[0043] (2-2) Rolling process The wet powder is sandwiched between two base films and passed through a pair of rollers using a calender (e.g., manufactured by Yuri Roll Machinery Co., Ltd.) until the desired thickness (more than 100 μm) is reached, followed by compression flattening to obtain a laminate in which the wet sheet is present between the two base films. Roller compression flattening can be performed multiple times. The base film is preferably a non-stick film such as a fluorine-based polymer film, and a specific example is Teflon® film.

[0044] (2-3) Drying process One of the substrate films in the laminate is peeled off. The laminate is dried using a forced air dryer. The drying temperature is preferably 50 to 100°C, and the drying time can be 1 to 2 minutes. Next, the remaining substrate film is peeled off, and the tobacco sheet is obtained by further drying under the above conditions. By drying in this manner, it is possible to prevent the tobacco sheet from adhering to other substrates.

[0045] The tobacco sheet obtained by this method is also called a "laminated sheet." Laminated sheets are preferable because they have a smooth surface and prevent chipping when they come into contact with other components. This method is also suitable for producing sheets with a thickness of 300 μm or less.

[0046] (3) Paper making method The method includes a slurry preparation step of preparing a slurry containing the tobacco composition, a step of preparing a paper-made tobacco sheet, and an addition step of adding the slurry to the sheet. (3-1) Slurry preparation process This step can be carried out as described above. This step is also preferably carried out so that component (B) remains in a powder state. The tobacco composition content in the slurry obtained in this step is preferably 3 to 15% by mass.

[0047] (3-2) Preparation of papermaking sheets In this step, a tobacco sheet is prepared by a known papermaking method.

[0048] (3-3) Addition process In this step, the slurry is added to the tobacco sheet by spraying, coating, or impregnating the sheet.

[0049] 4. Tobacco-flavored inhalers In the present invention, a "flavor inhalation article" refers to an article with which a user inhales flavor. Among flavor inhalation articles, those containing tobacco or components derived from tobacco are called "tobacco flavor inhalation articles." Tobacco flavor inhalation articles are broadly classified into "combustion-type tobacco flavor inhalation articles" (also simply referred to as "smoking articles") that generate flavor through combustion, and "non-combustion-type tobacco flavor inhalation articles" that generate flavor without combustion. Non-combustion-type tobacco flavor inhalation articles are further broadly classified into "non-combustion-heating-type tobacco flavor inhalation articles" that generate flavor through heating, and "non-combustion-non-heating-type tobacco flavor inhalation articles" that generate flavor without heating. The tobacco composition of the present invention is suitable for combustion-type tobacco flavor inhalation articles or non-combustion-heating-type tobacco flavor inhalation articles.

[0050] (1) Combustible tobacco-flavored inhalation products The combustion-type tobacco flavor inhalation article can have a known structure. For example, the combustion-type tobacco flavor inhalation article can include a tobacco rod portion and a filter. The tobacco rod portion contains the tobacco composition of the present invention.

[0051] (2) Non-combustion heated tobacco flavor inhalation products FIG. 1 shows one embodiment of a non-combustion heating tobacco flavor inhalation article. As shown in the figure, the non-combustion heating tobacco flavor inhalation article 20 includes a tobacco rod portion 20A, a cylindrical cooling portion 20B having perforations on its circumference, and a filter portion 20C. The non-combustion heating tobacco flavor inhalation article 20 may include other components. The axial length of the non-combustion heating tobacco flavor inhalation article 20 is not limited, but 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 non-combustion heating tobacco flavor inhalation article 20 is preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm. For example, the tobacco rod portion 20A may be 20 mm long, the cooling portion 20B may be 20 mm long, and the filter portion 20C may be 7 mm long. The lengths of these individual components may be appropriately changed depending on manufacturing suitability, required quality, and the like. Although FIG. 1 shows an embodiment in which the first segment 25 is arranged, it is also possible to arrange only the second segment 26 downstream of the cooling section 20B without the first segment 25 being arranged.

[0052] 1) Tobacco rod part 20A In the tobacco rod portion 20A, a sheet-form tobacco composition can be used as the tobacco filler 21. The sheet-form tobacco composition may be shredded or cut into strands. Alternatively, the tobacco filler 21 may be formed by adding the tobacco composition of the present invention to ordinary tobacco shreds or strands. The method for filling the tobacco filler 21 into the cigarette paper 22 is not particularly limited. For example, the tobacco filler 21 may be wrapped in the cigarette paper 22, or the tobacco filler 21 may be filled into a tubular cigarette paper 22. When the tobacco has a longitudinal direction, such as a rectangular shape, the tobacco may be filled so that the longitudinal direction is in an unspecified direction within the cigarette paper 22, or may be aligned in the axial direction of the tobacco rod portion 20A or in a direction perpendicular to the axial direction. Alternatively, cigarette paper containing the tobacco composition of the present invention can be used as the cigarette paper 22. When the tobacco rod portion 20A is heated, the tobacco components, aerosol-generating substrate, and water contained in the tobacco filler 21 are vaporized and available for inhalation.

[0053] 2) Cooling section 20B The cooling section 20B is preferably constructed of a cylindrical member. The cylindrical member may be, for example, a cardboard tube 23 formed by processing cardboard into a cylindrical shape. The cooling section 20B may also be formed from a sheet of thin material that is wrinkled and then pleated, gathered, or folded to form a channel. Examples of such a material include sheet materials selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil. The total surface area of ​​the cooling section 20B is appropriately adjusted taking into account cooling efficiency, but may be, for example, 300 to 1000 mm 2 / mm. The cooling section 20B is preferably provided with perforations 24. The presence of the perforations 24 allows outside air to be introduced into the cooling section 20B during puffing. As a result, the vaporized components of the aerosol generated by heating the tobacco rod section 21A come into contact with the outside air, and as their temperature drops, they are liquefied, forming an aerosol. The diameter (distance across) of the perforations 24 is not particularly limited, but may be, for example, 0.5 to 1.5 mm. The number of perforations 24 is not particularly limited, and may be one or two or more. For example, a plurality of perforations 24 may be provided on the circumference of the cooling section 20B.

[0054] The cooling section 20B may be rod-shaped with an axial length of, for example, 7 to 28 mm. For example, the axial length of the cooling section 20B may be 18 mm. The cooling section 20B may have a substantially circular axial cross section with a diameter of 5 to 10 mm. For example, the diameter of the cooling section may be approximately 7 mm.

[0055] 3) The filter part 20C The configuration of the filter part 20C is not particularly limited, and may be composed of one or more packed layers. The outside of the packed layer may be wrapped with one or more sheets of wrapping paper. The airflow resistance of the filter part 20C can be appropriately changed depending on the amount, material, etc. of the packing filled in the filter part 20C. For example, when the packing is cellulose acetate fiber, the airflow resistance can be increased by increasing the amount of cellulose acetate fiber filled in the filter part 20C. When the packing is cellulose acetate fiber, the packing density of the cellulose acetate fiber is 0.13 to 0.18 g / cm. 3 The airflow resistance is a value measured using an airflow resistance measuring device (product name: SODIMAX, manufactured by SODIM).

[0056] The circumferential length of the filter portion 20C 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 portion 20C (the horizontal direction in FIG. 1) can be selected from 4 to 10 mm, and is selected so that the airflow resistance is 15 to 60 mmH2O / seg. The axial length of the filter portion 20C is preferably 5 to 9 mm, more preferably 6 to 8 mm. The cross-sectional shape of the filter portion 20C is not particularly limited, but may be, for example, circular, elliptical, polygonal, etc. In addition, a flavor-containing breakable capsule, flavor beads, or flavor may be directly added to the filter portion 20C.

[0057] The filter portion 20C may have a center hole portion as the first segment 25. The center hole portion is composed of a first packed layer 25a having one or more hollow portions and an inner plug wrapper (inner wrapping paper) 25b that covers the packed layer. The center hole portion functions to increase the strength of the mouthpiece portion. The center hole portion may not have an inner plug wrapper 25b and its shape may be maintained by thermoforming. The filter portion 20C may have a second segment 26. The second segment 26 is composed of a second packed layer 26a and an inner plug wrapper (inner wrapping paper) 26b that covers the packed layer. The second packed layer 26a may be, for example, a rod with an inner diameter of 5.0 to 1.0 mm, densely packed with cellulose acetate fibers and hardened with 6 to 20 wt. % of a plasticizer containing triacetin added to the cellulose acetate. Because the second packed layer has a high fiber packing density, air and aerosol flow only through the hollow portions during inhalation, with almost no flow within the second packed layer. Since the second filling layer inside the center hole portion is a fiber filling layer, the feel from the outside during use is less likely to cause discomfort to the user.

[0058] The first filling layer 25a and the second filling layer 26a are connected by an outer plug wrapper (outer wrapping paper) 27. The outer plug wrapper 27 can be, for example, a cylindrical piece of paper. The tobacco rod portion 20A, the cooling portion 20B, and the connected first filling layer 25a and second filling layer 26a are connected by a mouthpiece lining paper 28. These connections can be made, for example, by applying a glue such as a vinyl acetate glue to the inner surface of the mouthpiece lining paper 28 and wrapping the three components. These components may also be connected in multiple layers using multiple lining papers.

[0059] A combination of a non-combustion heating type tobacco flavor inhalation article and a heating device for generating an aerosol is particularly referred to as a non-combustion heating type tobacco flavor inhalation system. An example of such a system is shown in Fig. 2. In the figure, the non-combustion heating type tobacco flavor inhalation system includes a non-combustion heating type tobacco flavor inhalation article 20 and a heating device 10 that heats a tobacco rod portion 20A from the outside.

[0060] The heating device 10 includes a body 11, a heater 12, a metal tube 13, a battery unit 14, and a control unit 15. The body 11 has a cylindrical recess 16, and the heater 12 and metal tube 13 are disposed in a position corresponding to the tobacco rod portion 20A to be inserted therein. The heater 13 may be an electric resistance heater, and is heated by power supplied from the battery unit 14 in response to instructions from the control unit 15, which controls the temperature. The heat generated by the heater 12 is transferred to the tobacco rod portion 20A through the metal tube 13, which has high thermal conductivity. While the figure shows an embodiment in which the heating device 10 heats the tobacco rod portion 20A from the outside, it may also heat from the inside. The heating temperature of the heating device 10 is not particularly limited, but is preferably 400°C or less, more preferably 150 to 400°C, and even more preferably 200 to 350°C. The heating temperature refers to the temperature of the heater of the heating device 10. [Example]

[0061] [Example A] A paper-made tobacco sheet was prepared as component (A). The sheet contained tobacco material and 15% by mass of vegetable glycerin as an aerosol-generating base material. A saturated fatty acid shown in Table 1 was prepared as component (B) and sprayed onto the sheet. The amount of component (B) added per dry weight of the tobacco composition (total of paper-made tobacco sheet and component (B)) is as shown in Table 1. For example, in Example A1, the amount of octanoic acid added per dry weight of the tobacco composition was 1.0% by mass.

[0062] [Table 1]

[0063] After drying the sheet, multiple slits were made in the sheet and the sheet was rolled up to obtain a tobacco rod. The longitudinal direction of the slits was parallel to the longitudinal direction of the tobacco segments. Using the tobacco rod, a non-combustion heating tobacco flavor inhalation article having the structure shown in Figure 3 was manufactured. The lengths of each segment were as follows: Tobacco segment: 12mm Center hole: 8mm Paper tube: 20mm Acetate filter: 40mm A smoking test was carried out by heating the non-combustion heating type tobacco flavor inhalation article using a hollow cylindrical heater having an outer diameter of 3.2 mm and an inner diameter of 1.3 mm under the following conditions. Voltage: Set the applied voltage to 3.0V Temperature profile: 320℃ constant Preheating time (before smoking): After inserting the heater into the reel, heat for 30 seconds Ten well-trained panelists conducted the test using a visual analog scale (categorical scale) method, using a non-combustion heating tobacco flavor inhalation product manufactured without adding component (B) (see Comparative Example A below) as a comparison. The results are shown in Table 1. A lower score difference indicates less unpleasant sensation.

[0064] [Comparative example A] A non-combustion heating type tobacco flavor inhalation article was produced in the same manner as in Example A, except that component (B) was not used.

[0065] [Example B] The following materials were prepared: Ingredient (A): Tobacco lamina (other than Orient variety), Tobacco lamina (Orient variety) Ingredient (B): Palmitic acid, sucrose palmitate Other ingredients: licorice, liquid sugar, coniferous pulp, glycerin, binder (guar gum)

[0066] Non-combustion heating type tobacco flavor inhalation articles were produced and evaluated according to the following procedures. 1) Tobacco lamina was pulverized in a laboratory mill to obtain tobacco powder with a raw particle size D90 of 100 μm. 2) Granular palmitic acid and sucrose palmitate were ground in a laboratory mill to obtain powder. 3) Softwood pulp was crushed in a laboratory mill. 4) These powdered materials were placed in a Ken mixer and mixed. 5) Liquid or paste-like materials such as water, glycerin, licorice, liquid sugar, and binder were placed in a disperser (manufactured by Primix) in a mixer and mixed for 30 minutes. 6) The pulp was added to this mixture and dispersed for 30 minutes using a disperser (manufactured by Primix). 7) The powder mixture obtained in 4) was added to the dispersion liquid in 6) and mixed for 30 minutes using a disperser (manufactured by Primix). 8) The mixture obtained in 7) above was cast onto an iron plate. 9) The iron plate on which the cast film was formed was placed in a forced-air dryer set at 80°C, dried for 30 minutes, and then peeled off from the iron plate to obtain a sheet-shaped tobacco composition. The sheet had a thickness of 150 μm and a basis weight of 150 g / m 2 It was. 10) The sheet-shaped tobacco composition was shredded to obtain 1 mm x 10 mm shredded tobacco composition. 11) A predetermined amount of the cut tobacco composition was wrapped in cigarette paper to form a single roll measuring φ7×20 mm. 12) The single roll was used as a tobacco rod to obtain a non-combustion heating type tobacco flavor inhalation article shown in FIG. 13) The non-combustion heating tobacco flavor inhalation article was inserted into a heating device (PloomS manufactured by Japan Tobacco Inc.), heated, and subjected to smoking evaluation. A sensory evaluation was performed by well-trained panelists. The evaluation results are shown in Table 2.

[0067] [Comparative example B] Except for changing the blending amounts of each component as shown in Table 2, non-combustion heating tobacco flavor inhalation articles were produced and evaluated in the same manner as in Example B.

[0068] [Table 2]

[0069] From the above, it is clear that the tobacco formulation of the present invention reduces the unpleasant sensation experienced when smoking. [Explanation of symbols]

[0070] 10 Heating device 11 Body 12 Heater 13 Metal tube 14 Battery unit 15 Control Unit 16 Recess 17 Ventilation holes 20 Non-combustion heating type flavor inhalation product 20A Tobacco rod part 20B Cooling section 20C filter section 21 Tobacco filler 22 Rolling Paper 23 Paper tube 24 perforation 25 First Segment 25a 1st packed bed 25b inner plug wrapper 26 Second Segment 26a 2nd packed bed 26b Inner plug wrapper 27 Outer plug wrapper 28 Lining Paper

Claims

1. (A) a tobacco material; (B) a saturated fatty acid-based additive, said component (B) is selected from the group consisting of saturated fatty acids having a molar mass of 200 to 350 g / mol, esters of said saturated fatty acids, and combinations thereof; A tobacco composition comprising 0.01 to 3 mass % of component (B) based on the dry matter weight of the composition.

2. The composition according to claim 1, wherein the saturated fatty acid and saturated fatty acid ester in component (B) are each a single product.

3. 3. The composition according to claim 1, wherein the saturated fatty acid of component (B) and the fatty acid moiety of the ester each have 12 to 20 carbon atoms.

4. The composition according to any one of claims 1 to 3, further comprising 1 to 10% by mass of liquid sugar based on the dry matter weight of the composition.

5. 5. The composition according to claim 1, wherein component (A) contains 10% by weight or less of a material derived from an Oriental species.

6. The composition according to any one of claims 1 to 5, further comprising 0.5 to 3% by weight of a natural plant-derived fragrance based on the dry matter weight of the composition.

7. The composition according to any one of claims 1 to 6, containing 2% by mass or more of nicotine based on the dry matter weight of the composition.

8. The composition according to any one of claims 1 to 6, containing 1.5% by mass or less of nicotine based on the dry matter weight of the composition.

9. 9. The composition according to claim 1, further comprising up to 12% by weight of an aerosol-forming substrate based on the dry matter weight of the composition.

10. A sheet formed from the tobacco composition according to any one of claims 1 to 9.

11. A step of mixing component (A), component (B) which is partly or entirely powder, and a medium so that the powder remains in a powder state to form a slurry; A method for producing a tobacco composition according to any one of claims 1 to 10, comprising:

12. The method according to claim 11, further comprising adjusting the viscosity of the slurry to 100,000 to 200,000 (mPa·s).

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