Tobacco material, method for producing the same, and non-combustion heated smoking article

Abstract

To provide a smoking article exhibiting the soft inherent flavor of leaf tobacco.SOLUTION: A non-combustion heated smoking article comprises a tobacco segment and a mouthpiece, wherein the tobacco segment comprises a tobacco material that satisfies 0<L×10 / H≤0.7, where H is the total peak area of components having a retention index (RI) of 1800 to 3100 in gas chromatography, and L is the total peak area of components having an RI of 1365 or more and less than 1800.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a tobacco material, a method for producing the same, and a non-combustion heating smoking article comprising the tobacco material. [Background technology]

[0002] Non-combustion heated smoking articles generally heat tobacco rods to 150-350°C to generate flavor components, which are then delivered along with the aerosol. Among these flavor components, sesquiterpenes, diterpenes, higher fatty acids, and higher hydrocarbons are known to be unique compared to other plants. In particular, cembranoid and labdanoid diterpenes, which are resinous components of tobacco leaves and are secreted by trichomes present on the leaf surface, are expected to be utilized (e.g., Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2022 / 102541 Summary of the Invention [Problem to be solved by the invention]

[0004] The amount of diterpenes such as α-cembratrienediol decreases during the drying process after harvesting mature tobacco leaves and as the cured tobacco leaves undergo various processes. For example, when flue-cured tobacco is dried in a short period of time using a heated fan, the amount of α-cembratrienediol decreases by approximately 20%. Furthermore, when burley tobacco is dried under ventilated conditions at natural temperature and humidity, the amount of α-cembratrienediol decreases by approximately 80%. The inventors conceived the idea that if the decrease in α-cembratrienediol could be avoided, smoking articles with a better flavor could be provided. In view of these circumstances, an objective of the present invention is to provide smoking articles that retain the soft flavor inherent to tobacco leaves. [Means for solving the problem]

[0005] The inventors have found that the above problems can be solved by the following invention. Aspect 1 A non-combustion heating type smoking article comprising a tobacco segment and a mouthpiece, wherein the tobacco segment Let H be the sum of the peak areas of components having a retention index (RI) of 1800 to 3100 in gas chromatography, When L is the sum of the peak areas of components having an RI of 1365 or more and less than 1800, a non-combustion heating type smoking article containing a tobacco material that satisfies 0 < L×10 / H ≦ 0.7. Aspect 2 comprising a tip paper that wraps a plurality of segments, wherein the tip paper includes a transparent portion T provided at least in part at a position facing the tobacco material, The non-combustion heating type smoking article according to Aspect 1. Aspect 3 The tobacco segment includes a wrapper that wraps the tobacco material, wherein the wrapper includes a transparent portion W provided at least in part at a position facing the tobacco material, wherein the transparent portion T and the transparent portion W overlap at least in part when viewed in the radial direction. The non-combustion heating type smoking article according to Aspect 2. Aspect 4 The tobacco segment includes a first flavor source containing the tobacco material and a second flavor source not containing the tobacco material disposed upstream or downstream of the first flavor source, the non-combustion heating type smoking article according to any one of Aspects 1 to 3. Aspect 5 The tobacco segment includes a first flavor source containing the tobacco material and a second flavor source not containing the tobacco material disposed upstream or downstream of the first flavor source, and a portion where the transparent portion T and the transparent portion W overlap is provided in a region wrapping the first flavor source. A non-combustion heating smoking article according to aspect 3. Aspect 6 the first flavor source and the second flavor source comprise an aerosol source; The content of the aerosol source of the first flavor source is lower than the content of the aerosol source of the second flavor source; A non-combustion heating smoking article according to aspect 4 or 5. Aspect 7 A non-combustion heating smoking article according to any one of Aspects 1 to 6, wherein the mouthpiece comprises a solid filter and a hollow filter. Aspect 8 A non-combustion heating smoking article according to any one of Aspects 1 to 7, further comprising a cooling section located downstream of the tobacco segment and upstream of the mouthpiece. Aspect 9 A non-combustion heating smoking article according to any one of Aspects 1 to 8, further comprising a tip plug located upstream of the tobacco segment. Aspect 10 A non-combustion heating smoking article according to any one of aspects 1 to 9, wherein the total filling weight of the tobacco segments is 0.15 to 0.35 g. Aspect 11 11. The non-combustion heating smoking article according to any one of Aspects 1 to 10, wherein the tobacco segment contains a susceptor. Aspect 12 A smoking system comprising the non-combustion heating smoking article according to any one of aspects 4 to 6 and a heating device including a heating unit, When the non-combustion heating smoking article is positioned at a predetermined position on the heating device, the heating device has the heating portion in a region overlapping with the first flavor source and does not have the heating portion in a region overlapping with the second flavor source when viewed from a radial direction. Smoking system. Aspect 13 The first flavor source is located downstream of the second flavor source. 13. A smoking system according to claim 12. Aspect 14 A smoking system comprising the non-combustion heating smoking article according to any one of aspects 4 to 6 and a heating device including a heating unit, When the non-combustion heating smoking article is positioned at a predetermined position on the heating device, the heating device has the heating portion in a region overlapping with the second flavor source and does not have the heating portion in a region overlapping with the first flavor source when viewed from a radial direction. Smoking system. Aspect 15 The second flavor source is located upstream of the first flavor source. 15. A smoking system according to claim 14. [Effects of the Invention]

[0006] A smoking article with a soft flavor can be provided. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic diagram showing a first embodiment of a non-combustion heating smoking article. [Figure 2] Schematic diagram showing an example of a non-combustion heating smoking system [Figure 3] Schematic diagram of an embodiment in which a first flavor source 211 and a second flavor source 212 are present. [Figure 4] Schematic diagram of an embodiment in which a first flavor source 211 and a second flavor source 212 are present. [Figure 5] A diagram illustrating transparent portions provided in the wrapper and tipping paper. [Figure 6] Schematic diagram showing a non-combustion heating smoking article 30 according to a second embodiment. [Figure 7] Schematic diagram showing a non-combustion heating smoking article 40 according to a third embodiment. [Figure 8] gas chromatograph [Figure 9] Diagram explaining the relationship between gas chromatograph and RI DETAILED DESCRIPTION OF THE INVENTION

[0008] In this disclosure, "X to Y" includes the extreme values ​​X and Y. Additionally, "downstream" refers to the side closer to the mouth end of the smoking article. 1. Tobacco materials 1-1. First tobacco material In one embodiment, for the tobacco material, when the total peak area of components with a retention index (RI) of 1,800 to 3,100 in gas chromatography is H, and the total peak area of components with an RI of 1,365 or more and less than 1,800 is L, it satisfies 0 < L×10 / H ≤ 0.7. "L×10 / H" is also simply referred to as the "L / H ratio" hereinafter.

[0009] Components with an RI of 1,800 to 3,100 (hereinafter also referred to as "component H") exhibit the original aroma of tobacco. Component H is a component group including a partial decomposition product of chlorophyll, leaf surface resin, higher fatty acids, and higher hydrocarbons. Specifically, component H includes neophytadiene (Neophytadiene, RI = 1,842), phytol (Phytol, RI = 2,114), α-cembratrienediol (α-CBT, RI = 2,242), linoleic acid (Linoleic acid, RI = 2,145), etc. On the other hand, components with an RI of 1,365 or more and less than 1,800 (hereinafter also referred to as "component L") are a component group including cembratriene decomposition products and carotenoid decomposition products. Component L includes 3-oxo-α-ionone (3-oxo-α-ionone, RI = 1,648), solanone (Solanone, RI = 1,368), norsolanadione (Norsolanadione, RI = 1,489), megastigmatrienone (Megastigmatrienone, RI = 1,581), etc.

[0010] The tobacco material in this embodiment satisfies 0 < L×10 / H ≤ 0.7. That is, the content of component H relative to component L is high. Therefore, the original complex aroma of tobacco is exhibited. The upper limit value of L×10 / H is preferably 0.55 or less, more preferably 0.5 or less, and still more preferably 0.30 or less.

[0011] Also, for the tobacco material, when the peak area of phytol with an RI of 2,114 is P, it satisfies 0 < L / P ≤ 1.2.

[0012] Generally, tobacco materials are obtained by drying harvested tobacco leaves. Therefore, the moisture content of the tobacco material in this embodiment is preferably 50% by weight or less. As will be described later, the tobacco material in this embodiment is preferably obtained by drying harvested tobacco leaves under specific conditions. The form of the tobacco material in this embodiment is not limited, but may be, for example, shredded or stranded.

[0013] RI can be determined by a known method using a standard saturated alkane standard, but in this embodiment, it is preferably determined by the following method. 1) Dilute standard saturated alkane standards (e.g., C7-C40 manufactured by Merck) with hexane to use hexane (C6) to tetracontane (C40) as indicators. 2) The linear retention index is calculated based on the following formula and used as the RI. RI = 100 × {[(tr(unknown)-tr(n)] / [tr(N)-tr(n)]+n} n = number of carbon atoms in the n-alkane eluting immediately before the unknown component N = number of carbon atoms in the n-alkane eluting immediately after the unknown component tr = retention time

[0014] [Method of manufacturing the tobacco material] The tobacco material of this embodiment can be prepared by any method. For example, it can be produced by separately preparing component H and externally adding component H to dried tobacco leaves. However, the tobacco material of this embodiment is preferably produced by subjecting harvested tobacco leaves to one or more of the following drying steps. The tobacco material obtained in this manner is green in color and has a good appearance. 1) A step of drying the tobacco leaves from the beginning at a relative humidity of 15 to 70% and at 35 to 80°C for 40 to 100 hours. 2) drying the tobacco leaves using microwaves By drying the harvested tobacco leaves in this manner, the decomposition of component H can be suppressed, and as a result, L×10 / H can be kept within the above range.

[0015] Process 1) This process is carried out by harvesting common tobacco leaves, such as burley varieties, and drying the harvested leaves. Drying is preferably carried out using, for example, a hot air circulation device. This process is preferably carried out in multiple stages. For example, this process is carried out through a first stage of drying at a low temperature (35°C, relative humidity 60-70%), a second stage of drying at a medium temperature (40-50°C, relative humidity 35-50%), and a third stage of drying at a high temperature (60-75°C, relative humidity 15-30%). The time for each stage can be adjusted as appropriate, but can be, for example, about 10-20 hours for the first stage, 20-30 hours for the second stage, and 20-50 hours for the third stage.

[0016] By carrying out drying in this manner, the mesophyll portion is dried first, and then the entire tobacco leaf, including the vein portion, is dried. This prevents cell destruction in the mesophyll portion, preventing the release of oxidases, and also reduces the moisture content of the mesophyll portion, inhibiting the reaction between component H and oxidases. This has the advantage of preventing the reduction of leaf surface resin in tobacco containing component H. In addition, this drying method causes some curing (chlorophyll decomposition), although not at the level of general curing, which allows for a higher amount of component H.

[0017] Process 2) In this process, post-harvest tobacco leaves are dried using microwaves. There are no particular restrictions on the environmental conditions for microwave drying. However, since the moisture released from the tobacco leaves may increase, resulting in an increase in environmental humidity, it is preferable to remove water vapor by appropriate ventilation. Microwaves are generated by a general magnetron and can be irradiated at practical frequencies of 915 MHz or 2450 MHz at output levels ranging from 0.6 to 100 kW. Microwave drying tends to destroy mesophyll cells, but the drying time can be shortened, suppressing the reaction between component H and oxidase.

[0018] 2. Second Tobacco Material (Tobacco Extract) In another embodiment, the tobacco material is a tobacco extract. A tobacco extract is a material obtained by extracting a raw material derived from tobacco. The L / H ratio of the tobacco extract is preferably greater than 0 and not greater than 0.55. The upper limit is more preferably not greater than 0.30, even more preferably not greater than 0.25, and most preferably not greater than 0.20.

[0019] The L / P of the tobacco extract is preferably greater than 0 and equal to 1.2. The upper limit is more preferably 1.2 or less, even more preferably 1.0 or less, and most preferably 0.6 or less.

[0020] [Tobacco extract manufacturing method] Tobacco extract is (1) preparing a tobacco-derived material; (2) subjecting the raw material to solid-liquid extraction using an organic solvent; (3) recovering the organic phase from step (2); and (4) removing the solvent from the organic phase to obtain a tobacco extract; The method may include: By going through the above steps, decomposition of component H can be suppressed, and as a result, L×10 / H can be set within the above range.

[0021] Process (1) In this process, a tobacco-derived raw material is prepared. The tobacco-derived raw material is a raw material derived from a Nicotiana plant, and examples thereof include tobacco raw materials such as tobacco leaves, aged tobacco leaves, tobacco shreds, or tobacco powder, as well as processed products or waste products obtained by subjecting tobacco raw materials to processing. Tobacco leaves are a general term for harvested tobacco leaves before they undergo aging. One form of aging includes curing. Tobacco shreds are aged tobacco leaves or the like that have been shredded to a predetermined size. Tobacco powder is obtained by pulverizing tobacco leaves or the like.

[0022] Process (2) In this process, tobacco-derived raw materials are subjected to solid-liquid extraction using an organic solvent. Examples of organic solvents include hydrocarbons such as hexane; esters such as ethyl acetate, butyl butyrate, and ethyl butyrate; halogenated hydrocarbons such as dichloromethane and chloroform; ketones such as acetone; and nitriles such as acetonitrile. Among these, hexane, ethyl acetate, or a mixture thereof is preferred from the viewpoint of efficient extraction of the target component H, with hexane being more preferred. Furthermore, solvents with a boiling point of 80°C or less are preferred from the viewpoint of ease of removal in subsequent processes. Therefore, the solvent is preferably hexane, ethyl acetate, butyl butyrate, ethyl butyrate, dichloromethane, or chloroform; more preferably hexane, ethyl acetate, butyl butyrate, and ethyl butyrate; and even more preferably hexane or ethyl acetate. In this process, the target component H is transferred to the organic solvent (organic phase). The above organic solvents can be used alone or in combination. Furthermore, the extraction temperature may be set to approximately 35 to 40°C, taking into account the melting point of component H and its solubility in the organic phase.

[0023] Process (3) In this step, the organic phase (or organic layer) obtained in step (2) is recovered. The organic phase is the organic phase obtained by the solid-liquid extraction. The recovery method is not limited, and can be carried out, for example, using a separatory funnel. If necessary, the aqueous phase can be washed with an organic solvent, and the solvent after washing can be added to the organic phase. In this way, a tobacco extract solution containing component H can be obtained.

[0024] Process (4) In this step, the organic solvent is removed from the organic phase to obtain a tobacco extract. The method for removing the solvent is not limited, and an evaporator can be used, for example.

[0025] Step (4) may further include a step of dehydrating the organic layer before removing the organic solvent from the organic phase. The dehydration method is not limited, and can be carried out by adding a drying agent such as anhydrous sodium sulfate. Step (4) may further include a step of removing solids contained in the organic layer before removing the organic solvent from the organic phase. The step of removing the solids can be carried out after the step of dehydrating the organic layer. The removal method is not limited, and can be carried out by filtration or decantation.

[0026] The method for producing a tobacco extract of this embodiment can further include a step of preparing a tobacco-derived raw material. The step of preparing a tobacco-derived raw material preferably includes subjecting harvested tobacco leaves to one or more of the following drying steps: 1) A step of drying the tobacco leaves from the initial stage at a relative humidity of 15 to 70% and a temperature of 35 to 80°C for 40 to 100 hours. 2) A step of drying the tobacco leaves using microwaves. By drying the harvested tobacco leaves in this manner, the decomposition of component H can be suppressed, and as a result, L×10 / H can be kept within the above range. Steps 1) and 2) are as described in 1-2.

[0027] 3. Tobacco filling 3-1. When the tobacco material that satisfies the above L / H ratio is the first tobacco material A tobacco filler is a flavor source filled into a smoking article. The tobacco filler according to this embodiment preferably includes (A) a tobacco material (excluding the first tobacco material, i.e., the tobacco extract) that satisfies the L / H ratio, (B) a tobacco material other than (A), and (C) an aerosol source. The tobacco material that satisfies the L / H ratio (also referred to as "component (A)") is as described above. In the filler, the amount of component (A) is preferably 5 to 90% by weight, more preferably 35 to 75% by weight. In the present disclosure, the amount of a component is expressed by dry weight unless otherwise specified.

[0028] (1) Component (B) Tobacco materials other than component (A) and component (A') described below (also referred to as "component (B)") are not limited as long as they are derived from Nicotiana plants. Specific examples of component (B) include tobacco shreds, tobacco powder, tobacco sheets, and strands, which are commonly used in the art. These may be used alone or in combination. Among these, cut tobacco shreds and tobacco sheets are preferred as component (B) from the viewpoint of excellent miscibility with component (A).

[0029] As the tobacco leaf used in component (B), species of the genus Nicotiana, such as Tabacum and Rustica, can be suitably used. There are no particular restrictions on the variety, and known varieties such as burley or flue-cured tobacco can be used. One or more of these tobacco leaf varieties can be mixed and used. The mixture can be a blend of the aforementioned varieties to achieve the desired flavor.

[0030] In the filler, the amount of component (B) is preferably 5 to 85% by weight, more preferably 25 to 65% by weight.

[0031] (2) Component (C) The aerosol source (also referred to as "component (C)") is a material that vaporizes when heated and cools to generate an aerosol, or that generates an aerosol by atomization. When the filler contains the aerosol source, a sufficient amount of smoke can be achieved. Known aerosol sources can be used, and examples include polyhydric alcohols such as glycerin, vegetable glycerin, propylene glycol (PG), triethyl citrate (TEC), triacetin, etc. The amount of the aerosol source in the filler is preferably 3 to 30 wt %, more preferably 10 to 15 wt %. If the amount of the aerosol source exceeds the upper limit, stains may occur on the tobacco segments, and if it is below the lower limit, the perceived smoke intensity may decrease.

[0032] (3) Component (D) The tobacco filler may further contain a non-tobacco flavoring agent (also referred to as "component (D)"). The non-tobacco flavoring agent is a flavoring agent that is not derived from tobacco. Examples of the non-tobacco flavoring agent include flavoring agents, cooling agents, and combinations thereof. Known flavoring agents and cooling agents can be used.

[0033] In particular, the following fragrances can be used alone or in combination: Acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, balsam of Peru oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, beta-carotene, carrot juice, L-carnitine Rubone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, konjac oil, coriander oil, cuminaldehyde, davana oil, δ-decalactone, γ-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl -6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanoate, 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-hydroxybenzoate -4-Methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract, gamma-heptalactone, gamma-hexalactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenylhexyl acetate, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-Trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, Sodium 4-hydroxyundecanoate, Inmortell Absolute, β-Ionone, Isoamyl Acetate, Isoamyl Butyrate, Isoamyl Phenylacetate, Isobutyl Acetate, Isobutyl Phenylacetate, Jasmine Absolute, Cola Nut Tincture, Labdanum Oil, Lemon Terpeneless Oil, Licorice Extract, Linalool, Linalyl Acetate, Lovage Root Oil, Maltol, Maple Syrup Top, menthol, menthone, L-menthyl acetate, para-methoxybenzaldehyde, methyl 2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, honey, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentane Tadecalactone, peppermint oil, petitgrain Paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, alpha-terpineol, terpinyl acetate, 5,6,7, 8-Tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, gamma-undecalactone, gamma-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5).

[0034] Among these, it is preferable to use a flavoring with an RI of 1600 or less. Ordinary tobacco materials contain a relatively large amount of a component (component L) with an RI of 1600 or less. Therefore, with ordinary tobacco materials, the flavoring and component L interfere with each other, and the properties of the flavoring may not be fully exhibited. However, the tobacco filler of this embodiment is able to fully exhibit the properties of the flavoring. Menthol is particularly preferable as a flavoring with an RI of 1600 or less. The amount of component (D) in the filler is preferably 0.8 to 6.0 wt %, more preferably 2.0 to 5.5 wt %.

[0035] (4) Manufacturing of tobacco fillings Tobacco fillers can be produced by known methods. For example, they can be produced by mixing the respective components. Alternatively, the respective components can be mixed to form a composition, and the composition can be spread on a surface to prepare a sheet, which can then be used as the filler as is, or the sheet can be shredded and used as the filler.

[0036] (5) First flavor source, second flavor source A tobacco filler that essentially contains component (A) is also referred to as a first flavor source. A tobacco filler that does not contain component (A) but essentially contains component (B) is also referred to as a second flavor source. By combining the first and second flavor sources, a softer flavor can be achieved, as described below. The second flavor source is placed upstream or downstream of the first flavor source.

[0037] The first flavor source may contain, in addition to component (A), component (C) as an aerosol source. In this case, the content of component (C) in the first flavor source is preferably 2 to 5% by weight. When the second flavor source contains component (C), the content of component (C) in the first flavor source can be lower than the content of component (C) in the second flavor source. By making the content of component (C) in the first flavor source relatively low as described above, the energy required to vaporize component (C) when the first flavor source is heated can be reduced. As a result, the characteristic components of the first flavor source (component (A), i.e., higher hydrocarbons and fatty acids) can be delivered efficiently.

[0038] Component (C) used in the first flavor source preferably contains glycerin, and more preferably consists of glycerin. Glycerin is easily supported in tobacco segments and is efficiently delivered by heating. On the other hand, aerosol sources other than glycerin (such as propylene glycol) are difficult to support in tobacco segments and may migrate to adjacent segments, resulting in reduced delivery efficiency.

[0039] The second flavor source may contain component (C) in addition to component (B). In this case, the content of component (C) in the second flavor source is preferably 10 to 20% by weight. The content of component (C) in the second flavor source may be higher than the content of component (C) in the first flavor. For the reasons mentioned above, component (C) used in the second flavor source preferably contains glycerin, and more preferably consists of glycerin.

[0040] 3-2. When the tobacco material that satisfies the above L / H ratio is the second tobacco material The tobacco filler according to this embodiment preferably contains (A') a tobacco extract that satisfies the above L / H ratio. The tobacco extract that satisfies the above L / H ratio (also referred to as "component (A')") is as described above. The amount of component (A') in the filler is preferably 0.1 to 5 wt %, more preferably 0.3 to 3 wt %, and most preferably 0.3 to 1.5 wt %.

[0041] (1) Component (E) The tobacco filler according to this embodiment preferably contains (E) non-pulp fibers. Non-pulp fibers (also referred to as "component (E)") are fibers other than pulp fibers. Pulp fibers are an aggregate of cellulose fibers extracted from plants such as wood, and are usually used as a raw material for paper. Examples of pulp fibers include recycled paper pulp, chemical pulp, and mechanical pulp. The non-pulp fibers are preferably derived from plants. Plant-derived fibers are biodegradable and therefore have a small environmental impact.

[0042] The average fiber diameter of the non-pulp fibers is preferably 25 μm or less, more preferably 20 μm or less, and even more preferably 15 μm or less. The lower limit of the average fiber diameter is not limited, but is preferably 2 nm or more, 10 nm or more, 100 nm or more, 1 μm or more, or 5 μm or more.

[0043] The average fiber diameter of non-pulp fibers can be determined by acquiring an image of the fiber, measuring the width (minor axis) of multiple fibers, and averaging these values. When the fiber shape is columnar (with a rectangular cross section), the width of the main surface (the longer one) of the width of the main surface and the width of the side surface is taken as the width of the fiber. The number of fibers measured is preferably 100 or more.

[0044] The non-pulp fibers are preferably single-fibered cellulose. Single-fibered cellulose is a thin fiber obtained by subjecting pulp fibers to a process such as defibration. The single-fibered cellulose may be chemically modified by oxidation or the like. The average fiber diameter of the single-fibered cellulose is as described above. The average fiber length of the single-fibered cellulose is not limited, but its upper limit is preferably 2000 μm or less, more preferably 1500 μm or less. Its lower limit is preferably 100 μm or more, more preferably 500 μm or more.

[0045] Furthermore, the non-pulp fiber is preferably dietary fiber. Dietary fiber is a food component that is not digested by human digestive enzymes, and is more preferably insoluble dietary fiber that does not dissolve in water. The dietary fiber may be porous, i.e., spongy. From the viewpoint of availability, the fiber is preferably citrus fiber. Citrus fiber is a fiber made primarily from the albedo of citrus fruits. The average fiber diameter of citrus fiber is as described above. Furthermore, the dietary fiber may be short fiber or columnar particles with a small aspect ratio.

[0046] In one embodiment, the monofilamented cellulose and dietary fiber are used in combination. The combined use of the two improves the strength, water dispersibility, and smoke sensation of the tobacco sheet (tobacco filler). The upper limit of the weight of the monofilamented cellulose per part by weight of dietary fiber is preferably 1.5 parts by weight or less, more preferably 1.2 parts by weight or less, and the lower limit is preferably 0.1 parts by weight or more, more preferably 0.3 parts by weight or more.

[0047] Although it is preferable that all fibers in the tobacco filler are non-pulp fibers, the tobacco filler may contain fibers other than non-pulp fibers. In this case, the amount of non-pulp fibers in the total fibers is preferably 60 to 99% by weight, more preferably 70 to 90% by weight.

[0048] The amount of component (E) in the tobacco filler is preferably 1 to 30% by weight, more preferably 2 to 15% by weight, and most preferably 5 to 10% by weight.

[0049] (2) Component (F) The tobacco filler according to this embodiment preferably contains a binder (F). The binder (also referred to as "component (F)") binds the components of the tobacco filler together to maintain the integrity of the tobacco filler. Examples of binders include pullulan, hydroxypropyl cellulose (HPC), guar gum, xanthan gum, carboxymethyl cellulose (CMC), carboxymethyl cellulose sodium salt (CMC-Na), and mixtures thereof. The amount of component (F) in the tobacco filler is preferably 1 to 30% by weight, more preferably 3 to 10% by weight, and most preferably 4 to 6% by weight.

[0050] In the tobacco filler, the total amount of (E) and (F) is preferably 8 to 50% by weight, more preferably 10 to 30% by weight, and most preferably 5 to 15% by weight. In the tobacco filler, the total amount of (E) and (F) can also be 15 to 50% by weight.

[0051] (3) Component (C) The tobacco filler according to this embodiment preferably contains (C) an aerosol source (component (C)). Component (C) is as described above. The amount of component (C) in the filler is preferably 10 to 60% by weight, more preferably 10 to 30% by weight, and most preferably 15 to 20% by weight. If the amount of component (C) exceeds the upper limit, stains and the like may occur on the tobacco segments, and if it is below the lower limit, the perceived smoke intensity may decrease.

[0052] (4) Component (B) The tobacco filler according to this embodiment may contain a tobacco material other than component (A') and (A) (component (B)). Component (B) is as described above. The amount of component (B) in the filler is preferably 5 to 85% by weight, more preferably 25 to 65% by weight.

[0053] (5) Component (D) The tobacco filler according to this embodiment may further contain a non-tobacco flavoring agent (component (D). Component (D) is as described above. The amount of component (D) in the filler is preferably 0.8 to 6.0% by weight, more preferably 2.0 to 5.5% by weight.

[0054] 4. Non-combustion heated smoking articles (1) First aspect The tobacco filler is suitable for use in a non-combustion heat smoking article. FIG. 1 shows a first embodiment of a non-combustion heat smoking article. As shown in the figure, the non-combustion heat smoking article 20 includes a tobacco segment 20A, a cylindrical cooling section 20B having perforations on its circumference, and a filter section 20C. The non-combustion heat smoking article 20 may include other components. The axial length of the non-combustion heat smoking 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 heat smoking 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 segment 20A may be 20 mm long, the cooling section 20B may be 20 mm long, and the filter section 20C may be 7 mm long. The lengths of these individual components can 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.

[0055] 1) Tobacco Segment 20A The figure shows an embodiment in which the tobacco segment 20A is composed of two flavor sources. 211 is a first flavor source containing tobacco material having the specific L / H ratio. 212 is a second flavor source not containing tobacco material having the specific L / H ratio. The first flavor source 211 and the second flavor source 212 constitute the tobacco filler 21. As shown in the figure, the first flavor source and the second flavor source can be arranged side by side in the longitudinal direction of the non-combustion heating smoking article. The method of filling these flavor sources into the wrapper 22 is not particularly limited. For example, the first flavor source 211 and the second flavor source 212 can be wrapped together in the wrapper 22, or they can be filled into a cylindrical wrapper 22. Alternatively, the first flavor source 211 and the second flavor source 212 can be individually wrapped in the wrapper 22. When the flavor sources have a longitudinal direction, such as a rectangular shape, they may be packed so that the longitudinal direction is in an unspecified direction within the wrapper 22, or may be packed so that the longitudinal direction is aligned in the axial direction of the tobacco segment 20A or in a direction perpendicular to the axial direction. When the tobacco segment 20A is heated, the tobacco components, aerosol source, and water contained in the tobacco filler 21 are vaporized and inhaled. The positions of the first flavor source 211 and the second flavor source 212 may be interchanged. Furthermore, the tobacco filler 21 may consist of the first flavor source 211. The total filling amount of the tobacco filler 21 may be, for example, approximately 0.15 to 0.35 g.

[0056] The length of the tobacco segment 20A may be adjusted as appropriate, but may be, for example, 10 to 20 mm. The length of the first flavor source and the length of the second flavor source may be the same or different. However, from a manufacturing standpoint, it is preferable that the lengths of the first flavor source and the second flavor source are each 5 mm or more. The airflow resistance of the first flavor source may be lower than the airflow resistance of the second flavor source. This is because, when the second flavor source is present upstream of the first flavor source, it is possible to prevent components generated from the second flavor source from being filtered by the first flavor source.

[0057] 2) Cooling section 20B The cooling section is located downstream of the tobacco segment (toward the mouth end) and upstream of the mouthpiece. The cooling section 20B is preferably constructed of a tubular member. The tubular 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 materials 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 cooling efficiency into consideration, 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 inhalation. As a result, the vaporized components of the aerosol generated by heating the tobacco segment 20A come into contact with the outside air, their temperature drops, and they liquefy, 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.

[0058] 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.

[0059] 3) The filter part 20C The filter portion constitutes the mouthpiece end, i.e., the mouthpiece. The configuration of the filter portion 20C is not particularly limited, but may be composed of one or more packing layers. The outside of the packing layer may be wrapped with one or more wrappers. The airflow resistance of the filter portion 20C can be appropriately changed by the amount, material, etc. of the filter packing filled in the filter portion 20C. For example, when the filter packing is cellulose acetate fiber, the airflow resistance can be increased by increasing the amount of cellulose acetate fiber filled in the filter portion 20C. When the filter 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).

[0060] 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.

[0061] The filter portion 20C may include a hollow filter having a center hole as the first segment 25. The center hole 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 serves to increase the strength of the mouthpiece. The center hole may not have an inner plug wrapper 25b and its shape may be maintained by thermoforming. The filter portion 20C may include a second segment 26 (solid filter). 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 portion 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.

[0062] 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 segment 20A, the cooling section 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.

[0063] 4) The tip plug Although not shown in FIG. 1, the non-combustion heating smoking article 20 may have a tip plug at its upstream end. The tip plug has a function of preventing the tobacco filler 21 from dropping out. The tip plug may be made of a known material. For example, the tip plug may be made of a paper filter or the solid filter. The length of the tip plug is adjusted as appropriate and may be, for example, 5 to 10 mm. The tip plug may carry an aerosol source. The aerosol source preferably contains glycerin, and more preferably consists of glycerin. The tip plug may carry only the aerosol source, or may carry the aerosol source and a flavor (e.g., menthol) together. In an embodiment using a first flavor source and a second flavor source, the second flavor source may be replaced by the tip plug.

[0064] The combination of a non-combustion heated smoking article and a heating device for generating aerosol is also referred to as a non-combustion heated smoking system. Figure 2 shows an example of a non-combustion heated smoking system. In the figure, the non-combustion heated smoking system includes a non-combustion heated smoking article 20 and a heating device 10 that heats a tobacco segment 20A from the outside.

[0065] The heating device 10 comprises 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 at positions corresponding to the tobacco segment 20A to be inserted therein. The heater 12 may be an electric resistance heater, and is heated by power supplied from the battery unit 14 in response to instructions from the temperature-controlling control unit 15. The heat generated by the heater 12 is transferred to the tobacco segment 20A through the metal tube 13, which has high thermal conductivity. While the figure shows a configuration in which the heating device 10 heats the tobacco segment 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. Alternatively, a susceptor may be placed inside the tobacco segment 20A, and the tobacco segment 20A may be heated by an IH method.

[0066] FIG. 3 is a schematic diagram of an embodiment in which a first flavor source 211 and a second flavor source 212 are present. When the first flavor source 211 and the second flavor source 212 are present, the heater 12 can overlap the first flavor source 211 but not the second flavor source 212 when viewed in the radial direction of the non-combustion heating smoking article. In other words, the heater 12 can overlap the first flavor source 211 but not the second flavor source 212 in the longitudinal direction. In this case, the second flavor source 212 generates a lightly decomposed aroma (such as Solanone) at a relatively low temperature, providing a flavor, and the first flavor source 211 is actively heated, facilitating the delivery of component H, making it easier to sense a softer flavor. At the same time, the second flavor source is also heated by heat transfer from the heater 12, allowing the aroma derived from the second flavor source to be enjoyed. The positions of the first flavor source 211 and the second flavor source 212 can be interchanged, and the heater 12 can be positioned so that it overlaps with the first flavor source 211. However, in an embodiment in which the first flavor source 211 is actively heated, the first flavor source 211 is preferably positioned downstream. This is because moderately heated steam is introduced into the first flavor source 211 from the second flavor source 212, which is positioned more upstream, thereby further promoting the delivery of component H. In this embodiment, the heating temperature of the heater 12 may be approximately 210 to 250°C.

[0067] FIG. 4 is a schematic diagram of an embodiment in which a first flavor source 211 and a second flavor source 212 are present. When the first flavor source 211 and the second flavor source 212 are present, the heater 12 can overlap the second flavor source 212 but not the first flavor source 211 when viewed from the radial direction. In this case, the second flavor source 212 is actively heated, facilitating the delivery of the flavor components in the second flavor source. At the same time, the first flavor source 212 is heated to a temperature not too high by heat transfer from the heater 12, making it difficult for component H to decompose. This promotes the delivery of component H. The positions of the first flavor source 211 and the second flavor source 212 can be interchanged, and the heater 12 can be positioned so that it overlaps with the second flavor source 212 when viewed from the radial direction of the non-combustion heating smoking article. However, in an embodiment in which the second flavor source 212 is actively heated, the first flavor source 211 is preferably positioned downstream. This is because relatively highly heated steam is introduced into the first flavor source 211 from the second flavor source 212 located further upstream, further promoting the delivery of component H. In this embodiment, the heating temperature of the heater 12 may be about 250 to 350°C.

[0068] As shown in Figure 5, the tipping paper wrapping multiple segments preferably has a transparent portion T provided in at least a portion of the position facing the tobacco material. The mouthpiece lining paper 28 in Figure 5 is a type of tipping paper. The position facing the tobacco material is specifically the position where the tobacco filler 21 is wrapped. The tipping paper itself may be made of a transparent material, and the transparent portion T may be formed therein. Alternatively, the tipping paper may be made of a transparent material and an opaque material such as paper, and the transparent portion T may be formed over all or part of the circumference of the smoking article. Examples of transparent materials include cellophane, polyolefin film, polyvinyl chloride film, and cellulose acetate film.

[0069] FIG. 5 shows transparent portions provided on the wrapper and tipping paper. The wrapper preferably has a transparent portion W provided in at least a portion of the position facing the tobacco material. The position facing the tobacco material specifically refers to the position where the tobacco filler 21 is wrapped. The wrapper itself may be made of a transparent material, forming the transparent portion W. Alternatively, the wrapper may be made of a transparent material and an opaque material such as paper, with the transparent portion W formed over all or part of the circumference of the smoking article. The transparent material is as described above. The transparent portions W and T preferably overlap when viewed from the radial direction. In this case, the user can see the tobacco filler. In particular, the presence of the transparent portion W and the transparent portion T at the position where the first flavor source is wrapped allows the user to see the green color of the first flavor source, resulting in excellent design. While the first embodiment has been described using an example in which the first flavor source 211 and the second flavor source 212 are used, it is also possible to use only one type of flavor source.

[0070] (2) Second aspect FIG. 6 shows a non-combustion heat-type smoking article 30 according to the second embodiment. In the figure, 31 denotes a tobacco filler, 33 denotes a holding member, 35 denotes a filter portion, 37 denotes a heat-conducting member, 38 denotes a longitudinal cavity, and 39 denotes a combustion-type heat source. The tobacco filler 31 is as described in the first embodiment. The holding member 33 can be made of a known material. Examples of known materials include polymer materials such as polypropylene. The heat-conducting portion 37 can be made of a metal material such as aluminum or stainless steel. The longitudinal cavity 38 has the function of introducing air into the non-combustion heat-type smoking article 30. The combustion-type heat source 39 is made of, for example, carbon.

[0071] In a non-combustion heat-type smoking article 30, a tobacco filler 31 is heated using a combustion-type heat source 39. The tobacco filler 31 is filled into a container C. For example, in the case of a non-combustion heat-type smoking article with a diameter of 7 mm, the upstream end face of the tobacco filler 31 is positioned within 2 mm downstream from the downstream end face of the combustion-type heat source. In this embodiment, the tobacco filler 31 is heated to 150°C or higher. Although not shown, a first flavor source and a second flavor source can be placed inside the container C. Alternatively, there can be only one type of flavor source.

[0072] The material of the container C is not particularly limited, and may be a metal material such as stainless steel, or a material containing pulp or a binder. The shape of the container C is not limited as long as it has the function of holding a tobacco filler. For example, as shown in the figure, the container C may be cup-shaped, having side walls and a bottom plate, with the opposite side of the bottom plate being open. Its dimensions are not particularly limited, but the width of the bottom plate is generally 3 mm to 10 mm, preferably 4 mm to 8 mm, and the height is generally 5 mm to 20 mm, preferably 7 mm to 12 mm. The thickness of the side walls is, for example, about 0.1 mm to 0.3 mm, and the thickness of the bottom plate is preferably greater than the thickness of the side walls, for example, 0.3 mm to 1.0 mm, preferably 0.4 mm to 1.0 mm.

[0073] (3) Third aspect FIG. 7 shows a non-combustion heating smoking article 40 according to the third embodiment. In the figure, 12 denotes a heater, 41 denotes a tobacco filler, and 45 denotes a mouthpiece; other reference numerals are defined the same as in FIG. 6. In the non-combustion heating smoking article 40, the tobacco filler 41 is heated by the heater 12. The tobacco filler 41 is filled into a container C. The container C is as described in the second embodiment. The heating temperature is less than 150°C. Although not shown, a first flavor source and a second flavor source can be disposed within the container C. In this embodiment, the arrangement of the first flavor source and the second flavor source and the heater can be similar to those in FIGS. 3 and 4. It is also possible to use only one type of flavor source.

[0074] Furthermore, as a further modification, the tobacco filler 41 can also be heated indirectly. For example, an aerosol source holding part may be provided upstream of the container C, and the holding part may be heated by a heater to introduce the vapor of the aerosol source into the container C. In this case, the tobacco filler 41 is heated by the vapor of the aerosol source, and at the same time, the flavor components are carried by the aerosol source vapor.

[0075] Preferred embodiments are described below. Aspect 1 A non-combustion heated smoking article comprising a tobacco segment and a mouthpiece, where the tobacco segment Let the sum of the peak areas of the components with a retention index (RI) of 1800 to 3100 in gas chromatography be H, When the sum of the peak areas of the components with the RI of 1365 or more and less than 1800 is L, A non-combustion heated smoking article containing a tobacco material that satisfies 0 < L×10 / H ≦ 0.7. Aspect 2 Comprising a tip paper that wraps a plurality of segments, The tip paper includes a transparent part T provided at at least a part of the position facing the tobacco material, The non-combustion heated smoking article according to Aspect 1. Aspect 3 The tobacco segment includes a wrapper that wraps the tobacco material, The wrapper includes a transparent part W provided at at least a part of the position facing the tobacco material, The transparent part T and the transparent part W overlap at least partially when viewed from the radial direction. The non-combustion heated smoking article according to Aspect 2. Aspect 4 The tobacco segment includes a first flavor source containing the tobacco material and a second flavor source not containing the tobacco material arranged upstream or downstream of the first flavor source, and the non-combustion heated smoking article according to any one of Aspects 1 to 3. Aspect 5 The tobacco segment includes a first flavor source containing the tobacco material and a second flavor source not containing the tobacco material, the second flavor source being disposed upstream or downstream of the first flavor source; The transparent portion T and the transparent portion W overlap in the region where the first flavor source is wrapped. A non-combustion heating smoking article according to aspect 3. Aspect 6 the first flavor source and the second flavor source comprise an aerosol source; The content of the aerosol source of the first flavor source is lower than the content of the aerosol source of the second flavor source; A non-combustion heating smoking article according to aspect 4 or 5. Aspect 7 Aspect 7. The non-combustion heating smoking article according to any one of aspects 1 to 6, wherein the mouthpiece comprises a solid filter and a hollow filter. Aspect 8 A non-combustion heating smoking article according to any one of Aspects 1 to 7, further comprising a cooling section located downstream of the tobacco segment and upstream of the mouthpiece. Aspect 9 A non-combustion heating smoking article according to any one of Aspects 1 to 8, further comprising a tip plug located upstream of the tobacco segment. Aspect 10 A non-combustion heating smoking article according to any one of Aspects 1 to 9, wherein the total filling weight of the tobacco segments is 0.15 to 0.35 g. Aspect 11 11. The non-combustion heating smoking article according to any one of Aspects 1 to 10, wherein the tobacco segment contains a susceptor. Aspect 12 A smoking system comprising the non-combustion heating smoking article according to any one of aspects 4 to 6 and a heating device including a heating unit, When the non-combustion heating smoking article is positioned at a predetermined position on the heating device, the heating device has the heating portion in a region overlapping with the first flavor source and does not have the heating portion in a region overlapping with the second flavor source when viewed from a radial direction. Smoking system. Aspect 13 The first flavor source is located downstream of the second flavor source. 13. A smoking system according to claim 12. Aspect 14 A smoking system comprising the non-combustion heating smoking article according to any one of aspects 4 to 6 and a heating device including a heating unit, When the non-combustion heating smoking article is positioned at a predetermined position on the heating device, the heating device has the heating portion in a region overlapping with the second flavor source and does not have the heating portion in a region overlapping with the first flavor source when viewed from a radial direction. Smoking system. Aspect 15 The second flavor source is located upstream of the first flavor source. 15. A smoking system according to claim 14. [Example]

[0076] [Example 1, Comparative Example 1] 1. Sample Preparation For component (A), Japanese burley (20, 21, and 22 years) and Brazilian burley (21 and 22 years) were prepared and dried as follows to prepare dried leaves. The leaves obtained by this drying are also called green dried leaves. 1) Harvested burley tobacco leaves were placed in a hot air circulating device. 2) The leaves were kept at a temperature of 35°C and a relative humidity of 64% RH for 12 hours. 3) The mesophyll was then dried for 24 hours at a temperature of 45°C and a relative humidity of 41%, and finally the entire tobacco leaf, including the veins, was dried for 36 hours in an atmosphere at a temperature of 68°C and a relative humidity of 19%RH. 4) After drying, the leaves were removed from the hot air circulator without humidifying it, and dried leaves with a yellow-green to dark green color (hereinafter referred to as green dried leaves) were obtained. The green dried leaves were separated into mesophyll and vein portions using a thresher, and the mesophyll portion was quickly sealed and packaged in vinyl. The package was kept sealed until it was used for sheet molding.

[0077] As component (B), Japanese burley cured leaves (20 years) and Brazilian cured leaves (19 years) manufactured by a standard method were prepared. In addition, uncured Japanese burley tobacco leaves (22 years) were prepared as a standard.

[0078] 2.Analysis 2-1. Measurement 5.0 g of the green dried leaves (produced in Japan) were weighed and placed in a 100 ml sealed glass container. Next, 45 ml of ethyl acetate (Fujifilm Wako Pure Chemical Industries, high performance liquid chromatograph grade) was added to the container, and extraction was carried out for approximately 12 hours while the container was sealed and left to stand at room temperature. After extraction, the mixture was filtered using filter paper (Advantec 5A) to separate the ethyl acetate solution from the extraction residue, yielding approximately 40 ml of ethyl acetate solution.

[0079] Next, approximately 5 g of anhydrous sodium sulfate was added to the ethyl acetate extract, and the mixture was dehydrated by gentle shaking in a sealed container for approximately 1 hour. The solid and liquid were then separated by filtration, and the solid was repeatedly washed with fresh ethyl acetate. The collected wash solution and extract solution were combined in a 200 ml eggplant flask. The ethyl acetate was removed from the liquid in the eggplant flask using a rotary evaporator, yielding approximately 300 mg of dry matter. Finally, ethyl acetate was added to obtain a dry matter concentration of 4.0%, and the analytical sample was obtained. The analytical samples were obtained using the same method, except that green dried leaves (from Brazil), dried burley leaves (from Japan), and dried burley leaves (from Brazil) were used instead of the green dried leaves (from Japan). The analytical samples were thus obtained.

[0080] GC analysis was performed under the conditions shown below. The GC chart is shown in Figure 8. The common dried burley leaves and green dried burley leaves in this figure are both produced in Japan. In the figure, 100 indicates the sample chart, and 102 indicates the alkane standard chart. GC Column: HP-5MS (30m x 0.25mm x 0.25um) Oven: 40°C for 3 minutes → Heat at 4°C / min → 280°C for 20 minutes Detector: FID Inlet: Split (10:1), 270℃ Injection volume: 1μl Flow rate: 1 ml / min (constant flow mode)

[0081] 2-2. Retention Index (RI) Commercially available standard saturated alkane standards (Merck, C7-C40) were diluted with hexane, and the RI was determined using hexane (C6) to tetracontane (C40) as indicators. The linear retention index RI was calculated based on the following formula: RI = 100 × {[(tr(unknown)-tr(n)] / [tr(N)-tr(n)]+n} n = number of carbon atoms in the n-alkane eluting immediately before the unknown component N = number of carbon atoms in the n-alkane eluting immediately after the unknown component tr = retention time As an example, the relationship between the gas chromatograph of Japanese burley leaves (top) and saturated alkane standard (bottom) is shown in Figure 9. The table below shows the retention times and retention indices (DB-5) of the saturated alkane standards analyzed.

[0082] [Table 1]

[0083] The total peak area H of component H with an RI of 1800 to 3100 and the total peak area L of component L with an RI of 1365 or more but less than 1800 were determined, and L × 10 / H (L / H ratio) was calculated. Furthermore, the peak area P of phytol with an RI of 2114 was determined, and L / P (also referred to as the "L / P ratio") was calculated. The data are summarized in the table below. The peak areas were determined after baseline correction (the same applies hereinafter).

[0084] [Example 2, Comparative Example 2] The materials shown in the table below were each cut to a cut width of 0.8 mm. A non-combustion heating smoking article as shown in Figure 1 was prepared. The tobacco segment 20A had a length of 20 mm, the cooling section 20B had a length of 20 mm, and the filter section 20C had a length of 7 mm. 0.3 g of the shredded tobacco was filled into each tobacco segment 20A. Details of each example are summarized in the table below. Levels 1, 3, and 5 correspond to examples, and the others correspond to comparative examples.

[0085] [Table 2]

[0086] The smoking articles were heated using a heating device and subjected to smoking evaluation by a panel of 10 well-trained experts. The softness / mouth feel during smoking was evaluated on a 5-point scale. The results are shown in the table below. 1 Not particularly soft 2. Not soft 3. Criteria 4. Soft 5. Very soft

[0087] [Table 3]

[0088] The green dried leaves exhibited a significant amount of the desired flavor. Furthermore, green dried leaves with an L / H ratio of 0.5 or less tended to exhibit a milder flavor.

[0089] [Example 3, Comparative Example 3] Non-combustion heating smoking articles were prepared using the methods described in Example 2 and Comparative Example 2. Peppermint was then added to the filler of each non-combustion heating smoking article using a microsyringe. The amount of peppermint in each smoking article was the same. Details of each example are summarized in the table below.

[0090] [Table 4]

[0091] Smoking evaluation was carried out in the same manner as in Example 2 and Comparative Example 2. However, the following evaluation criteria were used. The results are shown in the table below. 1. Mint flavor is very poorly expressed 2. Poor mint flavor expression 3. Criteria 4. Good mint aroma expression 5. Very good mint aroma expression

[0092] [Table 5]

[0093] The green dried leaves exhibited a significant amount of the desired flavor. Furthermore, green dried leaves with an L / H ratio of 0.5 or less and an L / P ratio of 1.2 or less exhibited no unpleasant flavor and a good mint aroma. [Explanation of symbols]

[0094] 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 smoking article (first embodiment) 20A Tobacco Segment 20B Cooling section 20C filter section 21 Tobacco filler 22 Rapper 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 30 Non-combustion heating smoking article (second embodiment) 31 Tobacco filler 33 Retaining member 35 Filter section 37 Thermal Conductive Materials 38 Longitudinal Cavity 39 Combustion-type heat source 40 Non-combustion heating smoking article (third aspect) 41 Tobacco filler 45 mouthpiece 100 Sample Charts 102 Alkane Standards Chart

Claims

1. A non-combustion heating smoking article comprising a tobacco segment and a mouthpiece, the tobacco segment The sum of the peak areas of components having a retention index (RI) of 1800 to 3100 in gas chromatography is designated as H, When the sum of the peak areas of the components having an RI of 1365 or more and less than 1800 is L, Contains tobacco material satisfying 0<L×10 / H≦0.7, Non-combustion heated smoking article.

2. A tipping paper wrapping the plurality of segments is provided, The tipping paper includes a transparent portion T provided in at least a portion of a position facing the tobacco material. The non-combustion heating type smoking article according to claim 1.

3. the tobacco segment includes a wrapper that surrounds the tobacco material; The wrapper includes a transparent portion W provided at least in a portion facing the tobacco material, The transparent portion T and the transparent portion W at least partially overlap when viewed from the radial direction. The non-combustion heating type smoking article according to claim 2.

4. A non-combustion heating smoking article as described in any one of claims 1 to 3, wherein the tobacco segment includes a first flavor source containing the tobacco material and a second flavor source not containing the tobacco material and arranged upstream or downstream of the first flavor source.

5. the tobacco segment includes a first flavor source containing the tobacco material and a second flavor source not containing the tobacco material, the second flavor source being disposed upstream or downstream of the first flavor source; a region in which the first flavor source is wound has a portion where the transparent portion T and the transparent portion W overlap when viewed from a radial direction; The non-combustion heating type smoking article according to claim 3.

6. the first flavor source and the second flavor source comprise an aerosol source; The content of the aerosol source of the first flavor source is lower than the content of the aerosol source of the second flavor source; The non-combustion heating type smoking article according to claim 4 or 5.

7. The non-combustion heating smoking article according to any one of claims 1 to 6, wherein the mouthpiece comprises a solid filter and a hollow filter.

8. The non-combustion heating smoking article according to any one of claims 1 to 7, further comprising a cooling section located downstream of the tobacco segment and upstream of the mouthpiece.

9. The non-combustion heating smoking article according to any one of claims 1 to 8, further comprising a tip plug located upstream of the tobacco segment.

10. 10. The non-combustion heating smoking article according to claim 1, wherein the total filling weight of the tobacco segments is 0.15 to 0.35 g.

11. The non-combustion heating smoking article according to any one of claims 1 to 10, wherein the tobacco segment contains a susceptor.

12. A smoking system comprising the non-combustion heating smoking article according to any one of claims 4 to 6 and a heating device having a heating unit, When the non-combustion heating smoking article is positioned at a predetermined position on the heating device, the heating device has the heating portion in a region overlapping with the first flavor source and does not have the heating portion in a region overlapping with the second flavor source when viewed from a radial direction. Smoking system.

13. The first flavor source is located downstream of the second flavor source.

13. A smoking system according to claim 12.

14. A smoking system comprising the non-combustion heating smoking article according to any one of claims 4 to 6 and a heating device having a heating unit, When the non-combustion heating smoking article is positioned at a predetermined position on the heating device, the heating device has the heating portion in a region overlapping with the second flavor source and does not have the heating portion in a region overlapping with the first flavor source when viewed from a radial direction. Smoking system.

15. The second flavor source is located upstream of the first flavor source.

15. A smoking system according to claim 14.

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