FILTER SEGMENT FOR NON-COMBUSTION HEATING TYPE FLAVOR INHALANTION INSTRUMENT, ... AND NON-COMBUSTION HEATING TYPE FLAVOR INHALANTION SYSTEM

Abstract

To provide a filter segment for non-combustion heating type flavor suction tool capable of increasing a ratio of an aerosol to a flavor component.SOLUTION: There is provided a filter segment for a non-combustion heating type flavor suction tool in which a sheet is filled, the filter segment 1 comprises: a sheet 2 including therein, an acid; and a cylindrical wrapper 3 including the sheet 2. Since the filter segment includes the acid, when an aerosol and a flavor component passes through the filter segment, a base component such as nicotine included in the flavor component interacts with the acid, thereby being selectively captured to the filter segment.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a filter segment for a non-combustion heating type flavor inhalation device, a non-combustion heating type flavor inhalation device, and a non-combustion heating type flavor inhalation system. [Background technology]

[0002] In recent years, non-combustion heating type flavor inhalation devices that utilize heating instead of combustion have been developed as an alternative to combustion type flavor inhalation devices. Non-combustion heating type flavor inhalation devices include a tobacco-containing segment that includes a tobacco filler that includes tobacco and an aerosol-generating substrate that generates an aerosol by heating. In addition, non-combustion heating type flavor inhalation devices can further include a cooling segment that cools the vaporized aerosol-generating substrate to generate an aerosol, a filter segment, and the like (Patent Documents 1 to 3). When using a non-combustion heating type flavor inhalation device, aerosol is inhaled together with flavor components such as nicotine. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5877618 [Patent Document 2] Special Publication No. 2018-530318 [Patent Document 3] International Publication No. 2019 / 123048 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present invention have reduced the airflow resistance in the filter segment and decreased the filtration ability of the flavor components and aerosol in order to increase the supply of aerosol and flavor components to the user, aiming to improve the user's sense of smoke volume and tobacco feel. As a result, although the supply of aerosol and flavor components to the user increases, the ratio of aerosol to flavor components (aerosol / flavor components) decreases, and it was found that the user may feel irritation.

[0005] An object of the present invention is to provide a filter segment for a non-combustion heating type flavor inhalation device that can increase the ratio of aerosol to flavor components, and a non-combustion heating type flavor inhalation device and a non-combustion heating type flavor inhalation system that are equipped with the filter segment. [Means for solving the problem]

[0006] The filter segment for a non-combustion and heating type flavor inhalation device according to the present invention is a filter segment for a non-combustion and heating type flavor inhalation device filled with a sheet, the filter segment containing an acid.

[0007] The non-combustion heat-type flavor inhalation device according to the present invention comprises a tobacco-containing segment and the filter segment for a non-combustion heat-type flavor inhalation device.

[0008] The non-combustion heating type flavor inhalation system according to the present invention comprises the non-combustion heating type flavor inhalation tool and a heating device for heating the tobacco-containing segment. Effect of the Invention

[0009] According to the present invention, it is possible to provide a filter segment for a non-combustion heating type flavor inhalation device that can increase the ratio of aerosol to flavor components, as well as a non-combustion heating type flavor inhalation device and a non-combustion heating type flavor inhalation system that are equipped with the filter segment. [Brief description of the drawings]

[0010] [Figure 1]FIG. 2 is a schematic diagram showing an example of a filter segment for a non-combustion heating type flavor inhalation device according to the present embodiment. [Diagram 2] 1 is a cross-sectional view showing an example of a non-combustion heating type flavor inhalation device according to a first embodiment of the present invention. [Diagram 3] FIG. 4 is a cross-sectional view showing an example of a non-combustion heating type flavor inhalation device according to a second embodiment of the present invention. [Figure 4] FIG. 1 is a schematic diagram showing an example of a non-combustion heating type flavor inhalation system according to the present embodiment, in which (a) a state before a non-combustion heating type flavor inhalation instrument is inserted into a heating device, and (b) a state in which the non-combustion heating type flavor inhalation instrument is inserted into the heating device and heated. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] [Filter segment for non-combustion heating type flavor inhalation devices] The filter segment for a non-combustion heating type flavor inhalation device according to this embodiment (hereinafter also referred to as the filter segment) is a filter segment filled with a sheet, and the filter segment contains an acid. By containing the acid in the filter segment, when the aerosol and flavor component pass through the filter segment, a base component such as nicotine contained in the flavor component interacts with the acid and is selectively captured by the filter segment. By selectively capturing the flavor component in the filter segment, the ratio of aerosol / flavor component increases when supplied to the user, and irritation can be suppressed. The flavor component preferably contains a base component, and more preferably contains an alkaloid such as nicotine.

[0012] In particular, it is preferable that the sheet filled in the filter segment contains an acid inside the sheet. For example, the acid can be present inside a sheet such as paper, and by containing the acid inside the sheet in this way, a sufficient amount of acid is stably arranged in the filter segment, the contact efficiency between the acid and the base component is improved, and the flavor component can be captured more efficiently in the sheet. In addition to the sheet, the acid may be contained in, for example, a cylindrical wrapper that wraps the sheet, or an adhesive such as glue that is used to bond both ends of the wrapper when the wrapper is made into a cylindrical shape. The filter segment according to this embodiment can be arranged downstream (on the mouthpiece side) of the tobacco-containing segment that contains tobacco and an aerosol-generating substrate.

[0013] (Sheet) In this embodiment, the sheet is not particularly limited, but is preferably a sheet capable of containing an acid inside. For example, it is preferable that the sheet is porous because it can hold the acid in the pores. In particular, as described later, even when the acid is liquid at room temperature, the liquid acid can be held in the pores, and the acid can be prevented from leaking out of the sheet. Examples of such sheets include wet nonwoven fabrics or dry nonwoven fabrics made mainly of natural or synthetic short fibers, specifically paper, nonwoven fabric, etc. In addition, films having an open pore structure such as foamed polymer films can also be mentioned, specifically foamed polyolefin films and foamed polyurethane films. Among these, the sheet is preferably paper from the viewpoint of having affinity with acid and excellent acid retention ability. Examples of paper include glassine paper, paraffin paper, coated paper, impregnated paper, etc. The sheet itself may or may not have breathability (air permeability). From the viewpoint of not increasing the aerosol removal rate, it is preferable that the sheet has no breathability or has low breathability.

[0014] The thickness of the sheet is preferably 20 to 120 μm, and more preferably 30 to 80 μm. When the thickness of the sheet is 30 μm or more, a sufficient amount of acid can be retained inside the sheet. When the thickness of the sheet is 80 μm or less, sufficient airflow resistance can be ensured in the filter segment.

[0015] When the sheet is paper, the basis weight of the paper is 20 to 120 g / m 2 It is preferable that the thickness is 30 to 80 g / m 2 It is more preferable that the basis weight is 30 g / m 2 By setting the basis weight at 80 g / m or more, a sufficient amount of acid can be retained inside the paper. 2 By satisfying the above condition, sufficient breathability can be ensured in the filter segment.

[0016] The sheet is filled in the filter segment, and the filling form is not particularly limited. For example, as described below, a plurality of fold lines (also called crimps or crepes) may be provided in the axial direction of the filter segment, and the sheet may be gathered while being folded in an accordion-like shape along the fold lines, and then placed in the wrapper of the filter segment. In this case, the interval between the fold lines is not particularly limited, and may be, for example, 0.5 to 2 mm.

[0017] (acid) The acid used in this embodiment is not particularly limited, but an edible acid can be used, for example, an organic acid. In particular, it is preferable that the acid is liquid at 15 to 25°C, i.e., at room temperature. This is because the acid is liquid at room temperature and can be applied directly to the sheet or wrapper without being dissolved in a solvent such as water. In addition, the acid is retained in a liquid state inside the sheet or wrapper, so that the acid is uniformly distributed inside the sheet or wrapper and the contact efficiency between the acid and the flavor components is improved, and the flavor components can be efficiently captured by the sheet or wrapper.

[0018] Specific examples of the acid include stearic acid, isostearic acid, linoleic acid, oleic acid, palmitic acid, myristic acid, dodecanoic acid, capric acid, benzoic acid, isobutyric acid, propionic acid, adipic acid, acetic acid, vanillylmandelic acid, maleic acid, glutaric acid, fumaric acid, succinic acid, lactic acid, glycolic acid, and glutamic acid. Among these, examples of acids that are liquid at 15 to 25°C include isostearic acid, linoleic acid, oleic acid, isobutyric acid, propionic acid, acetic acid, and lactic acid. These acids may be used alone or in combination of two or more. Among these, lactic acid is preferred as the acid from the viewpoints of low cost, low odor, and low effect on flavor.

[0019] When an acid is contained inside the sheet, the amount of the acid contained in the sheet is preferably 1 to 20% by mass, more preferably 2 to 15% by mass, and even more preferably 4 to 12% by mass, based on the mass of the sheet. When the amount of the acid is 1% by mass or more, the flavor components can be sufficiently captured in the sheet. Also, when the amount of the acid is 20% by mass or less, the acid can be prevented from seeping out of the sheet.

[0020] When the acid is present inside the sheet or wrapper, the method for incorporating the acid into the inside of the sheet or wrapper is not particularly limited, but examples include a method of applying liquid acid to the surface of a porous sheet or wrapper by coating or spraying, a method of immersing a porous sheet or wrapper in liquid acid, a method of impregnating a granular support such as granular activated carbon with the acid and then adding it to a sheet, a method of impregnating activated carbon fibers with the acid and then incorporating the activated carbon fibers into a sheet, and the like.

[0021] (Filter segment configuration) The filter segment according to the present embodiment is a cylindrical member filled with a sheet and can contain an acid. An example of the filter segment according to the present embodiment is shown in FIG. 1. The filter segment 1 shown in FIG. 1 includes a sheet 2 containing an acid therein and a cylindrical wrapper 3 wrapping the sheet 2. The sheet 2 has a plurality of fold lines in the axial direction of the filter segment 1, i.e., in the horizontal direction of FIG. 1, and is gathered while being folded in an accordion-like shape along the fold lines and is filled in the wrapper 3. The grooves formed by the gathers extend in the axial direction of the filter segment 1. By filling the sheet 2 in the filter segment 1 in this manner, the surface area of ​​the sheet 2 can be increased while maintaining the permeability of aerosols and flavor components in the axial direction of the filter segment 1, and the flavor components can be efficiently and selectively captured by the sheet 2.

[0022] The airflow resistance per filter segment is preferably 2.5 mmH2O / mm or less, more preferably 0.1 to 2.0 mmH2O / mm, even more preferably 0.2 to 1.5 mmH2O / mm, and particularly preferably 0.2 to 0.5 mmH2O / mm. By setting the airflow resistance to 2.5 mmH2O / mm or less, the amount of aerosol and flavor components supplied to the user can be increased. As described above, the ratio of aerosol to flavor components (aerosol / flavor components) decreases accordingly, but since the filter segment in this embodiment contains an acid, the decrease in the ratio can be suppressed. The airflow resistance can be appropriately changed depending on the packing density, material, etc. of the sheet filled in the filter segment. The airflow resistance is a value measured by an airflow resistance measuring device (product name: SODIMAX, manufactured by SODIM).

[0023] The packing density of the sheet in the filter segment is 1 mg / mm 3 It is preferable that the concentration is 0.3 to 0.8 mg / mm 3 More preferably, the concentration is 0.4 to 0.7 mg / mm 3 It is more preferable that the packing density is 1 mg / mm3 By setting the thickness of the insulating layer 11 to 15 mmH2O or less, the airflow resistance tends to be 2.5 mmH2O or less.

[0024] The shape of the filter segment is not particularly limited, but may be, for example, columnar. When the filter segment is columnar, the circumferential length of the filter segment is preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm. The axial length of the filter segment is preferably 4 to 30 mm, more preferably 5 to 15 mm, and even more preferably 5 to 12 mm. The cross-sectional shape of the filter segment is not particularly limited, but may be, for example, circular, elliptical, polygonal, etc.

[0025] [Non-combustion heating type flavor inhalation device] The non-combustion heating type flavor inhalation device according to this embodiment (hereinafter also referred to as the flavor inhalation device) can include a tobacco-containing segment and a filter segment for a non-combustion heating type flavor inhalation device according to this embodiment. Since the flavor inhalation device according to this embodiment includes the filter segment according to this embodiment, the ratio of aerosol to flavor components can be increased. The filter segment according to this embodiment can be disposed downstream (on the mouthpiece side) of the tobacco-containing segment. The flavor inhalation device according to this embodiment may include other segments in addition to the tobacco-containing segment and the filter segment according to this embodiment.

[0026] The flavor inhalation device according to the present embodiment is preferably provided with a cooling segment between the tobacco-containing segment and the filter segment according to the present embodiment from the viewpoint of delivering a sufficient amount of aerosol. In the cooling segment, the flavor components and the aerosol-generating substrate volatilized by heating the tobacco-containing segment are cooled and partially liquefied (aerosolized). The cooling segment preferably includes a single free-flow passage, i.e., has one channel rather than multiple channels in the axial direction, from the viewpoint of not removing too much of the flavor components and the aerosol-generating substrate. For example, the cooling segment may be a cylindrical member having perforations on the circumferential surface. In addition, the cooling segment preferably includes multiple free-flow passages, i.e., has multiple channels in the axial direction, from the viewpoint of increasing the contact area and thus increasing the cooling effect of the flavor components and the aerosol-generating substrate in a short segment length.

[0027] First Embodiment FIG. 2 shows an example of a flavor inhalation device according to a first embodiment of the present invention. The flavor inhalation device 4 shown in FIG. 2 includes a tobacco-containing segment 5 and a mouthpiece segment 8. The mouthpiece segment 8 includes a first cooling segment 6, a filter segment 1 according to the present embodiment, and a first center hole segment 7. During use, the tobacco-containing segment 5 is heated, and inhalation is performed from the end of the first center hole segment 7. Note that the position of the filter segment 1 is not limited to the position shown in FIG. 2, and for example, the positions of the filter segment 1 and the first center hole segment 7 may be interchanged. In addition, in the flavor inhalation device 4 shown in FIG. 2, the first center hole segment 7 may be omitted.

[0028] The tobacco-containing segment 5 has a tobacco filler 9 containing tobacco and an aerosol-generating substrate, and a cylindrical first wrapper 10 that covers the tobacco filler 9. The tobacco filler 9 may further contain a volatile flavor component, water, etc. There are no particular limitations on the size of the tobacco used as the filler or the preparation method thereof. For example, dried tobacco leaves chopped to a width of 0.8 to 1.2 mm may be used. When chopped to the above width, the length of the chops is approximately 5 to 20 mm. Alternatively, dried tobacco leaves may be crushed to an average particle size of approximately 20 to 200 μm, homogenized, processed into a sheet, and chopped into a width of 0.8 to 1.2 mm. When chopped to the above width, the length of the chops is approximately 5 to 20 mm. Furthermore, the above-mentioned sheet-processed product may be gathered without being chopped and used as the filler.

[0029] Whether dried tobacco leaves are shredded or ground into a homogenized sheet, various types of tobacco can be used in the tobacco filler. Flue, Burley, Orient, native, and other Nicotiana tabacum and Nicotiana rustica varieties can be appropriately blended to achieve the desired flavor. Details of the tobacco varieties are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0030] There are several conventional methods for grinding tobacco and processing it into homogenized sheets. One is a paper-making sheet made using a papermaking process, the other is a cast sheet made by mixing an appropriate solvent such as water to homogenize it, then thinly casting the homogenized material onto a metal plate or metal plate belt and drying it, and the third is a rolled sheet made by extruding a homogenized material mixed with an appropriate solvent such as water into a sheet. Details of the types of homogenized sheets are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0031] The packing density of the tobacco packing 9 is not particularly limited, but is usually 250 mg / cm from the viewpoint of ensuring the performance of the flavor inhalation device 4 and imparting a good smoking taste. 3 or more, preferably 320 mg / cm 3 More than 520 mg / cm 3 or less, preferably 420 mg / cm 3 Specifically, the content of the tobacco filler 9 in the tobacco-containing segment 5 is in the range of 200 to 400 mg, preferably 250 to 320 mg, for a tobacco-containing segment 5 having a circumference of 22 mm and a length of 20 mm.

[0032] The aerosol-generating substrate is a material capable of generating an aerosol by heating, and is not particularly limited, but examples thereof include glycerin, propylene glycol (PG), 1,3-butanediol, triethyl citrate (TEC), etc. One type of these aerosol-generating substrates may be used, or two or more types may be used in combination. The amount of the aerosol-generating substrate contained in the tobacco filler 9 may be, for example, 10 to 30% by mass relative to 100% by mass of the tobacco filler 9.

[0033] The type of the volatile flavor component is not particularly limited, and from the viewpoint of imparting a good smoking taste, the following may be used: 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, β-carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-cinnamate, cinnamyl ... Toronellol, Clary Sage Extract, Cocoa, Coffee, Cognac 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-hydroxy-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, la , 4-Hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, Sodium 4-Hydroxyundecanoate, Immortelle Absolute, β-Ionone, Isoamyl Acetate, Isoamyl Butyrate, Isoamyl Phenylacetate, Isobutyl Acetate, Isobutyl Phenylacetate, Jasmine Absolute, Cola Nut Tincture, Labdanum Oil, Lemon Terpeneless Oil, Licorice Extract, Linalool, Linalyl Acetate, Robe Dioscorea officinalis root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, paramethoxybenzaldehyde, methyl 2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, tsammi fruit, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentadecane Calactone, Peppermint Oil, Petitgrain Paraguay Oil, Phenethyl Alcohol, Phenethyl Phenylacetate, Phenylacetic Acid, Piperonal, Plum Extract, Propylguaethol, 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,Examples of the extracts include 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, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, and extracts of tobacco plants (tobacco leaves, tobacco stems, tobacco flowers, tobacco roots, and tobacco seeds), with menthol being particularly preferred. These volatile fragrance ingredients may be used alone or in combination of two or more.

[0034] The method for filling the tobacco filler 9 into the first wrapper 10 is not particularly limited, and for example, the tobacco filler 9 may be wrapped in the first wrapper 10, or the tobacco filler 9 may be filled into a cylindrical first wrapper 10. When the tobacco has a longitudinal direction, such as a rectangular shape, the tobacco may be filled in the first wrapper 10 so that the longitudinal direction is in an unspecified direction, or may be filled aligned in the axial direction of the tobacco-containing segment 5 or perpendicular to the axial direction. When the tobacco-containing segment 5 is heated, the tobacco components and aerosol-generating substrate contained in the tobacco filler 9 are vaporized, and are transferred to the mouthpiece segment 8 by inhalation.

[0035] The first cooling segment 6 is composed of a first cylindrical member 11. The first cylindrical member 11 can be, for example, a paper tube made by processing cardboard into a cylindrical shape. The first cylindrical member 11 and a mouthpiece lining paper 16 described later are provided with perforations 12 penetrating both. Due to the presence of the perforations 12, outside air is introduced into the first cooling segment 6 during inhalation. As a result, the volatile components vaporized by heating the tobacco-containing segment 5 come into contact with the outside air, and as their temperature drops, they are liquefied to form an aerosol. The diameter (diameter) of the perforations 12 is not particularly limited, but can be, for example, 0.5 to 1.5 mm. The number of perforations 12 is not particularly limited, and may be one or more than two. For example, a plurality of perforations 12 may be provided on the circumference of the first cooling segment 6.

[0036] The first center hole segment 7 is composed of a packed bed 13 having a hollow portion and an inner plug wrapper 14 covering the packed bed 13. The packed bed 13 can be, for example, a rod packed with cellulose acetate fibers at a high density, and hardened by adding a plasticizer containing triacetin in an amount of 6 to 20% by mass based on the mass of cellulose acetate. The diameter of the hollow portion can be 1.0 to 5.0 mm. Since the packed bed 13 has a high fiber packing density, air and aerosol flow only through the hollow portion during suction, and hardly flow inside the packed bed 13. This can reduce the filtering ability of the aerosol in the first center hole segment 7. Note that, although the packed bed 13 in FIG. 2 has a hollow portion, the hollow portion may not be provided in this embodiment. That is, a segment composed of a normal acetate filter may be disposed instead of the first center hole segment.

[0037] The filter segment 1 and the first center hole segment 7 are connected by an outer plug wrapper 15. The outer plug wrapper 15 can be, for example, a cylindrical paper. The tobacco-containing segment 5, the first cooling segment 6, and the already connected filter segment 1 and first center hole segment 7 are connected by a mouthpiece lining paper 16. 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 16, and then wrapping the three segments therein.

[0038] The length of the flavor inhalation tool 4 according to the present embodiment in the axial direction, i.e., the horizontal direction in FIG. 2, is not particularly 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 flavor inhalation tool 4 according to the present embodiment is preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm. For example, the length of the tobacco-containing segment 5 may be 20 mm, the length of the first cooling segment 6 may be 20 mm, the length of the filter segment 1 may be 8 mm, and the length of the first center hole segment 7 may be 7 mm. The lengths of these individual segments may be appropriately changed depending on the manufacturing suitability, the required quality, and the like.

[0039] Second Embodiment An example of a flavor inhalation tool according to the second embodiment of the present invention is shown in FIG. 3. The flavor inhalation tool 4 shown in FIG. 3 includes a tobacco-containing segment 5, a second center hole segment 17, a second cooling segment 18, and a filter segment 1 according to this embodiment. The second center hole segment 17 in this embodiment also has a function of preventing the tobacco filler filled in the tobacco-containing segment 5 from moving toward the downstream second cooling segment 18. In this embodiment, the tobacco-containing segment 5 can be the same as the tobacco-containing segment in the first embodiment. In this embodiment, the second center hole segment 17 can be, for example, a second tubular member 19 having a hollow portion with a diameter of 1.5 to 5 mm. In this embodiment, the second cooling segment 18 can be a segment in which a film 20 made of a polymer such as polylactic acid is crimped, gathered, and placed in a second wrapper 21. The tobacco-containing segment 5, the second center hole segment 17, the second cooling segment 18, and the filter segment 1 are connected by a mouthpiece lining paper 16. The second cooling segment 18 may be changed to the filter segment 1 according to this embodiment, and a segment made of a normal acetate filter may be provided downstream thereof.

[0040] The length of the flavor inhalation tool 4 according to this embodiment in the axial direction, i.e., the horizontal direction in FIG. 3, is not particularly limited, but is preferably 40 to 65 mm, more preferably 45 to 60 mm. The circumferential length of the flavor inhalation tool 4 according to this embodiment is preferably 16 to 25 mm, more preferably 18 to 23 mm. For example, the length of the tobacco-containing segment 5 may be 12 mm, the length of the second center hole segment 17 may be 8 mm, the length of the second cooling segment 18 may be 18 mm, and the length of the filter segment 1 may be 7 mm. These individual segment lengths may be appropriately changed depending on the manufacturing suitability, the required quality, and the like.

[0041] [Non-combustion heating type flavor inhalation system] The non-combustion heating type flavor inhalation system (hereinafter also referred to as the flavor inhalation system) according to this embodiment can include the flavor inhalation tool according to this embodiment and a heating device that heats the tobacco-containing segment. Since the flavor inhalation system includes the flavor inhalation tool according to this embodiment, the ratio of aerosol to flavor components can be increased. The flavor inhalation system according to this embodiment is not particularly limited as long as it includes the flavor inhalation tool according to this embodiment and the heating device, and may have other configurations.

[0042] An example of the flavor inhalation system according to the present embodiment is shown in FIG. 4. The flavor inhalation system shown in FIG. 4 includes a flavor inhalation tool 4 according to the present embodiment and a heating device 22 for heating the tobacco-containing segment of the flavor inhalation tool 4 from the outside. FIG. 4(a) shows a state before the flavor inhalation tool 4 is inserted into the heating device 22, and FIG. 4(b) shows a state in which the flavor inhalation tool 4 is inserted into the heating device 22 and heated. The heating device 22 shown in FIG. 4 includes a body 23, a heater 24, a metal tube 25, a battery unit 26, and a control unit 27. The body 23 has a cylindrical recess 28, and the heater 24 and the metal tube 25 are disposed on the inner side surface of the recess 28 at a position corresponding to the tobacco-containing segment of the flavor inhalation tool 4 inserted into the recess 28. The heater 24 can be a heater using electric resistance, and the heater 24 is heated by being supplied with power from the battery unit 26 in response to an instruction from a control unit 27 that controls the temperature. The heat generated by the heater 24 is transferred to the tobacco-containing segment of the flavor inhalation tool 4 through the metal tube 25, which has high thermal conductivity. In Fig. 4(b), a gap is present between the outer periphery of the flavor inhalation tool 4 and the inner periphery of the metal tube 25 for the sake of schematic illustration, but in reality, it is preferable that there is no gap between the outer periphery of the flavor inhalation tool 4 and the inner periphery of the metal tube 25 in order to transfer heat efficiently. Note that although the heating device 22 heats the tobacco-containing segment of the flavor inhalation tool 4 from the outside, it may also heat from the inside.

[0043] The heating temperature by the heating device is not particularly limited, but is preferably 400° C. or lower, more preferably 150° C. or higher and 400° C. or lower, and even more preferably 200° C. or higher and 350° C. or lower. The heating temperature refers to the temperature of the heater of the heating device. EXAMPLES

[0044] The present embodiment will be described in more detail below with reference to examples, but the present embodiment is not limited to these examples.

[0045] [Example 1] (Preparation of Filter Segments) Glassine paper (Product name: Extra thick white glassine, 8 mm x 180 mm, basis weight: 40 g / m 2 Linear creases were made at 1 mm intervals along the short side of the paper (length: 40 μm, thickness: 40 μm). Lactic acid was applied to the glassine paper by spraying. The content of lactic acid in the glassine paper was 8 mg (12.2 mass %). The glassine paper was gathered while being folded accordion-like along the fold lines, and packed into a paper wrapper to produce a cylindrical filter segment with a circumferential length of 21.4 mm and an axial length of 8 mm. The packing density of the glassine paper in the filter segment was 0.62 mg / mm 3 The airflow resistance of the filter segment was 0.37 mmH2O / mm. The airflow resistance was measured using an airflow resistance measuring device (product name: SODIMAX, manufactured by SODIM).

[0046] (Production of flavor inhalation device) A commercially available flavor inhalation device (trade name: Ploom S tobacco stick, manufactured by Japan Tobacco Inc.) was prepared. The flavor inhalation device has the same configuration as the flavor inhalation device 4 shown in Fig. 2, except that a center hole segment is arranged instead of the filter segment 1 in the flavor inhalation device 4 shown in Fig. 2. That is, the flavor inhalation device has two center hole segments arranged on the mouth end side, the center hole segment on the tobacco-containing segment side has a hollow portion with a diameter of 4.5 mm, and the center hole segment on the mouth end side has a hollow portion with a diameter of 1.5 mm.

[0047] In this example, a flavor inhalation device having the configuration shown in Fig. 2 was produced by replacing the center hole segment on the tobacco-containing segment side of the commercially available flavor inhalation device with a filter segment produced by the above method. In the flavor inhalation device, the tobacco-containing segment 5 had a length of 20 mm, the first cooling segment 6 had a length of 20 mm, the filter segment 1 had a length of 8 mm, and the first center hole segment 7 had a length of 7 mm. The tobacco-containing segment 5 contained tobacco and glycerin as an aerosol-generating base material.

[0048] (evaluation) In order to evaluate the amount of flavor components and aerosol supplied to the user during use, and the ratio of aerosol to the flavor components, the amounts of nicotine and glycerin supplied as representative flavor components were measured. Specifically, the evaluation was performed by the following method.

[0049] A Glass Fiber Filter (trade name: Cambridge Filter 44mm, manufactured by Borgwaldt) was placed immediately after the mouth end of the prepared flavor inhalation device. The tobacco-containing segment of the flavor inhalation device was heated at 240°C using a heating device (trade name: Ploom S, manufactured by Japan Tobacco Inc.) compatible with the commercially available flavor inhalation device, and inhalation was performed. The inhalation conditions were 55 ml / 2 seconds per puff (1 puff was performed at 30-second intervals, i.e., 2-second inhalation and 28-second waiting), with a total of 8 puffs, based on the HCI method (Canadian forced smoking conditions method). The amount of glycerin and nicotine captured in the Glass Fiber Filter was quantified for each puff. Specifically, the captured components were extracted by shaking at 200 rpm for 20 minutes using 10 ml of isopropanol (IPA) as the extraction solvent. The obtained extract was analyzed by GC under the following conditions, and the amount of glycerin and nicotine were quantified for each puff.

[0050] Inlet temperature: 240℃ Oven temperature: 150°C for 1.3 minutes, then increase to 240°C at 70°C / min and hold for 5 minutes Column: Product name: DB-WAX 10m x 0.18mm x 0.18μm, manufactured by Agilent Detector: FID

[0051] The amount of glycerin, the amount of nicotine, and the ratio of the amount of glycerin to the amount of nicotine (G / Ni) for the total of eight puffs are shown in Table 1. In Table 1, segment A indicates the second segment from the mouth end, and segment B indicates the segment closest to the mouth end.

[0052] [Comparative Example 1] A filter segment was prepared in the same manner as in Example 1, except that lactic acid was not applied to the glassine paper in the preparation of the filter segment. A flavor inhalation device was prepared using the filter segment in the same manner as in Example 1, and evaluated. The results are shown in Table 1.

[0053] [Comparative Example 2] In Example 1, the center hole segment was not replaced with a filter segment, and the commercially available flavor inhalation device was evaluated as it was in the same manner as in Example 1. The results are shown in Table 1.

[0054] [Reference example 1] In Example 1, the two center hole segments of the commercially available flavor inhaler were replaced with filter segments filled with cellulose acetate fibers, and the flavor inhaler was evaluated in the same manner as in Example 1. The results are shown in Table 1.

[0055] [Table 1]

[0056] As shown in Table 1, Example 1 showed a high G / Ni value because the flavor inhalation device had a filter segment containing an acid. On the other hand, Comparative Examples 1 and 2 showed a lower G / Ni value than Example 1 because the flavor inhalation device did not have the filter segment. Note that the flavor inhalation device of Reference Example 1 showed a high G / Ni value, but the amount of glycerin and the amount of nicotine were less than those of Example 1 due to the high airflow resistance, and Example 1 had a better balance between the amount of glycerin and the amount of nicotine and the G / Ni value. The present invention includes the following embodiments. [1] A filter segment for a non-combustion heating type flavor inhalation device, the filter segment being filled with a sheet, A filter segment for a non-combustion heating type flavor inhalation device, wherein the filter segment contains an acid. [2] The filter segment for a non-combustion heating type flavor inhalation device according to [1], wherein the sheet contains an acid inside the sheet. [3] The filter segment for a non-combustion heating type flavor inhalation instrument according to [2], wherein the amount of the acid contained in the sheet is 1 to 20 mass % relative to the mass of the sheet. [4] A filter segment for a non-combustion heating type flavor inhalation instrument according to any one of [1] to [3], having an air resistance of 2.5 mmH2O / mm or less. [5] The filter segment for a non-combustion heating type flavor inhalation device according to any one of [1] to [4], wherein the sheet is porous. [6] A filter segment for a non-combustion heating type flavor inhalation device according to any one of [1] to [5], wherein the sheet is a wet nonwoven fabric or a dry nonwoven fabric. [7] The filter segment for a non-combustion heating type flavor inhalation device according to [6], wherein the sheet is made of paper. [8] The filter segment for a non-combustion heating type flavor inhalation instrument according to any one of [1] to [7], wherein the acid is liquid at 15 to 25°C. [9] The filter segment for a non-combustion heating type flavor inhalation instrument according to any one of [1] to [8], wherein the acid is an organic acid.

[10] The filter segment for a non-combustion heating type flavor inhalation instrument according to [9], wherein the acid is lactic acid.

[11] a tobacco-containing segment; A filter segment for a non-combustion heating type flavor inhalation device according to any one of [1] to

[10] , A non-combustion heating type flavor inhalation device.

[12] The non-combustion heating type flavor inhalation device described in

[11] , further comprising a cooling segment between the tobacco-containing segment and the filter segment for the non-combustion heating type flavor inhalation device.

[13] The non-combustion heating type flavor inhalation device according to

[12] , wherein the cooling segment includes a single free-flow passage.

[14] The non-combustion heating type flavor inhalation device according to

[13] , wherein the cooling segment is a tubular member having perforations.

[15] A non-combustion heating type flavor inhalation device described in any one of [1] to

[14] , wherein the tobacco-containing segment comprises tobacco and an aerosol-generating substrate.

[16] The non-combustion heating type flavor inhalation device described in

[15] , wherein the aerosol-generating base material is at least one selected from the group consisting of glycerin, propylene glycol, 1,3-butanediol and triethyl citrate.

[17] A non-combustion heating type flavor inhalation device according to any one of

[11] to

[16] , a heating device for heating the tobacco-containing segment; A non-combustion heating type flavor inhalation system comprising: [Explanation of symbols]

[0057] 1 Filter Segment 2 seats 3. Rapper 4 Flavor suction device 5. Tobacco-containing segments 6 First Cooling Segment 7 First Center Hole Segment 8 Mouthpiece Segments 9 Tobacco filling 10. The First Rapper 11 First tubular member 12 perforation 13 Filled bed 14 Inner plug wrapper 15 Outer plug wrapper 16 Mouthpiece Lining Paper 17 Second Center Hole Segment 18 Second Cooling Segment 19 Second tubular member 20 Film 21 The Second Rapper 22 Heating device 23 Body 24 Heater 25 Metal tube 26 Battery unit 27 Control Unit

Claims

1. a tobacco-containing segment; A filter segment for a non-combustion heating type flavor inhalation device, the filter segment being filled with a sheet; a cooling segment disposed between the tobacco-containing segment and the filter segment; A non-combustion heating type flavor inhalation device comprising: the filter segment comprises an acid; the cooling segment is a tubular member having a plurality of perforations on a circumference thereof, the perforations penetrating the tubular member; The non-combustion and heating type flavor inhalation device, wherein the filter segment has an airflow resistance of 2.5 mmH 2 O / mm or less.

2. a tobacco-containing segment; A filter segment for a non-combustion heating type flavor inhalation device, the filter segment being filled with a sheet; a cooling segment disposed between the tobacco-containing segment and the filter segment; A non-combustion heating type flavor inhalation device comprising: the filter segment comprises an acid; The cooling segment is a paper tube having a plurality of perforations on a circumference thereof, The non-combustion and heating type flavor inhalation device, wherein the filter segment has an airflow resistance of 2.5 mmH 2 O / mm or less.

3. 3. The non-combustion and heating type flavor inhalation device according to claim 1, wherein the sheet contains an acid therein.

4. 4. The non-combustion and heating type flavor inhalation device according to claim 3, wherein the amount of the acid contained in the sheet is 1 to 20% by mass based on the mass of the sheet.

5. The non-combustion and heating type flavor inhalation device according to claim 1 , wherein the sheet is porous.

6. 6. The non-combustion and heating type flavor inhalation device according to claim 1, wherein the sheet is a wet-laid nonwoven fabric or a dry-laid nonwoven fabric.

7. 7. The non-combustion heating type flavor inhalation device according to claim 6, wherein the sheet is made of paper.

8. 8. The non-combustion and heating type flavor inhalation device according to claim 1, wherein the acid is liquid at a temperature of 15 to 25°C.

9. The non-combustion and heating type flavor inhalation device according to claim 1 , wherein the acid is an organic acid.

10. The non-combustion heating type flavor inhalation device according to claim 9, wherein the acid is lactic acid.

11. The non-combustion heating type flavor inhalation device according to claim 1 , wherein the cooling segment includes a single free-flow passage.

12. The non-combustion heating flavor inhalation device according to claim 1 , wherein the tobacco-containing segment comprises tobacco and an aerosol-forming substrate.

13. 13. The non-combustion heating type flavor inhalation device according to claim 12, wherein the aerosol-generating base material is at least one selected from the group consisting of glycerin, propylene glycol, 1,3-butanediol, and triethyl citrate.

14. A non-combustion heating type flavor inhalation device according to any one of claims 1 to 13, a heating device for heating the tobacco-containing segment; A non-combustion heating type flavor inhalation system comprising:

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