Non-combustion heating type flavor inhalation device

Abstract

To provide a non-combustion heating type flavor suction apparatus in which a suction port end vicinity is at a non-comfortable temperature to a user during use.SOLUTION: In a non-combustion heating type flavor suction apparatus 10 including a tobacco rod 1, a cooling segment 3 and a mouthpiece 5, the mouthpiece 5 includes two connected center hole filters 51, 52.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a non-combustion heating type flavor inhalation device comprising a tobacco rod, a cooling segment, and a mouthpiece. [Background technology]

[0002] In recent years, products have been commercially available that use non-combustion heating type flavor inhalation devices that are inserted into devices (e.g., Patent Document 1). From the viewpoints of ease of insertion into devices and sufficient delivery of flavor, it is desirable for these non-combustion heating type flavor inhalation devices to have a certain thickness or more. However, as the diameter of the non-combustion heating type flavor inhalation device increases, the amount of heat given to the device increases, and the area of ​​contact with the lips also increases. As a result, the temperature near the mouth end rises, and there is a risk that users may feel uncomfortable with the temperature near the mouth end during use. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2017 / 198837 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide a non-combustion heating type flavor inhalation device that maintains a temperature near the mouth end that is comfortable for the user during use.

[0005] The flavor inhaler described in Patent Document 1 has a mouthpiece with a filter and a paper tube in this order toward the mouth end. However, the inventors thought that there was room for improvement in the flavor inhaler described in Patent Document 1, and completed the present invention. That is, the above-mentioned problems are solved by the present invention described below. [1] A non-combustion heating type flavor inhalation device comprising a tobacco rod, a cooling segment, and a mouthpiece, The flavor suction device, wherein the mouthpiece comprises two connected center hole filters. [2] The flavor suction device according to [1], wherein the hole diameters of the two center hole filters are different. [3] When the hole diameter of the first center hole filter existing on the tobacco rod side is d1 and the hole diameter of the second center hole filter existing on the suction port end side is d2, d1 > d2, the flavor suction device according to [2]. [4] When the hole diameter of the first center hole filter existing on the tobacco rod side is d1 and the hole diameter of the second center hole filter existing on the suction port end side is d2, d1 < d2, the flavor suction device according to [2]. [5] The cross-sectional area of the holes of the center hole filter is 0.7 to 20 mm 2 The flavor suction device according to any one of [1] to [4]. [6] The flavor suction device according to any one of [2] to [5], wherein the ratio of the small hole diameter to the large hole diameter is 1:1.5 to 1:4. [7] The hole diameter of the center hole filter is 1.0 to 5.0 mm, the flavor suction device according to any one of [1] to [6]. [8] The flavor suction device according to any one of [1] to [7], wherein the hardness of the center hole filter measured by the following method is 90% or more. Measurement method 1) Place the center hole filter on the substrate so that its longitudinal direction is horizontal, and measure its height Ds. 2) Use a pressure jig to press and compress the side surface of the center hole filter. Pressure: 300 g, Pressure time: 10 seconds, Pressure jig head diameter: φ12 mm 3) Measure the height Dd of the center hole filter after pressurization 4) Calculate the hardness H (%) from the following formula. H (%) = Dd / Ds × 100 [9] The flavor suction device according to [8], wherein the hardness is 95% or more.

[10] The wall thickness of the center hole filter is 1 to 3 mm, the flavor suction device according to any one of [1] to [9].

[11] The flavor inhalation device according to any one of [1] to

[10] , having a diameter of 6 to 8 mm.

[12] The flavor inhalation device according to any one of [1] to

[10] , wherein the center hole filter has a monofilament size of 5 to 12 (denier / filament).

[13] The flavor inhalation device according to

[12] , wherein the center hole filter has a monofilament size of 5 to 8 (denier / filament).

[14] The flavor inhalation device according to any one of [1] to

[13] , wherein the total fineness of the center hole filter is 30,000 to 60,000 (denier / total).

[15] The flavor inhalation device according to

[14] , wherein the total fiber size of the center hole filter is 35,000 to 45,000 (denier / total). Effect of the Invention

[0006] The present invention can provide a non-combustion and heating type flavor inhalation device that maintains a temperature near the mouth end that is comfortable for the user during use. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 shows a non-combustion heating type flavor inhalation device of the present invention. [Diagram 2] FIG. 1 shows a non-combustion heating type flavor inhalation system of the present invention. [Diagram 3] Diagram showing the smoking test apparatus DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The present invention will be described in detail below. In the present invention, "X to Y" includes the extreme values ​​X and Y.

[0009] 1. Non-combustion heating type flavor inhalation device The non-combustion heat type flavor inhalation device of the present invention comprises a tobacco rod, a cooling segment, and a mouthpiece, and comprises two center hole filters connected to the mouthpiece. FIG. 1 shows one embodiment of the non-combustion heat type flavor inhalation device of the present invention. In the figure, 10 is a non-combustion heat type flavor inhalation device, 1 is a tobacco rod, 3 is a cooling segment, 5 is a mouthpiece, 51 is a first center hole filter, 52 is a second center hole filter, 7 is tipping paper, and V is ventilation. The diameter of the flavor inhalation device is preferably 6 to 8 mm. The diameter is defined as the average value of the diameters of the members constituting the flavor inhalation device.

[0010] (1) Tobacco rod The tobacco rod is a substantially cylindrical member for generating the flavor and aroma components contained in the tobacco raw material, and includes a tobacco filler and a wrapper wrapped around it. The tobacco filler is not limited, and can be, for example, tobacco shreds, tobacco sheets, etc. Specifically, the wrapper can be filled with tobacco shreds obtained by cutting dried tobacco leaves to a width of 0.8 to 1.2 mm. Alternatively, dried tobacco leaves can be crushed and homogenized to an average particle size of about 20 to 200 μm, processed into sheets, and cut into a width of 0.8 to 1.2 mm, which can then be filled into the wrapper. The sheet can be gathered, folded, or spirally wound without being cut, and filled into the wrapper. The sheet can be cut into strips and filled into the wrapper concentrically or with the longitudinal direction of the strips parallel to the longitudinal direction of the tobacco rod.

[0011] Various tobacco leaves can be used, such as flue-cured, burley, orient, native, other Nicotiana tabacum varieties, Nicotiana rustica varieties, and mixtures thereof. As the mixture, a suitable blend of the above varieties can be used to achieve the desired flavor. Details of the tobacco varieties are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0012] The method for producing the homogenized sheet, i.e., the method for grinding tobacco leaves and processing them into a homogenized sheet, can be carried out by a known method. For example, the following methods can be selected: A method for producing a paper-making sheet using a papermaking process; A method for mixing a suitable solvent such as water with ground tobacco leaves to homogenize them, and then casting the homogenized material thinly on a metal plate or metal plate belt and drying it to produce a cast sheet; A method for mixing a suitable solvent such as water with ground tobacco leaves to homogenize them, and extruding the mixture into a sheet to produce a rolled sheet. Details of the types of homogenized sheets are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0013] The tobacco filler may contain moisture, and the moisture content may be 10 to 15% by weight, and preferably 11 to 13% by weight, based on the total weight of the tobacco filler. By using a tobacco filler containing this amount of moisture, the occurrence of stains is suppressed, and the tobacco rod is well suited for rolling during production.

[0014] The tobacco rod 1 may generate steam when heated. In order to promote the generation of aerosol, it is preferable to add an aerosol source, such as glycerin, propylene glycol, or a polyol such as 1,3-butanediol, to the tobacco filler. The amount of the aerosol source added is preferably 5 to 50% by weight, more preferably 10 to 30% by weight, based on the dry weight of the tobacco filler. The length of the tobacco rod 1 is not limited, but is preferably 15 to 25 mm. Its diameter is also not limited, but is preferably 6 to 8 mm.

[0015] The tobacco rod 1 may contain a flavoring. The type of the flavoring is not particularly limited, and examples of the flavoring that can provide a good smoking experience include the following: 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 Resinoids, 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-Citronellol, Clary Sage Extract Lacto, cocoa, coffee, konjac oil, coriander oil, cumin aldehyde, davana oil, delta-decalactone, gamma-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, 1,5,5,9-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 ethyl-1,3-cyclohexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-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). Among these, menthol is preferred. These flavorings may be used alone or in combination of two or more.

[0016] The filling density of the tobacco filling is not particularly limited, but is usually 250 mg / cm from the viewpoint of ensuring the characteristics of a non-combustion heating type flavor inhalation device and imparting a good smoking taste. 3 or more, preferably 320 mg / cm 3 The upper limit is usually 800 mg / cm. 3 or less, preferably 600 mg / cm 3 The following is the result.

[0017] (2) Cooling segment The cooling segment is a member for promoting aerosolization by cooling flavor components and vapor generated in the tobacco rod 1. The cooling segment 3 may be a hollow paper tube. The paper tube is preferably made of a cardboard having higher rigidity than a wrapper or tipping paper. The paper tube may be provided with ventilation V (openings). A plurality of ventilations are preferably provided along the circumference of the paper tube. From the mouth end of the cooling segment toward the heating end, the upper limit of the position at which the ventilation is provided is preferably within 4 mm from the mouth end of the cooling segment, more preferably within 2 mm, from the viewpoint of promoting aerosolization and cooling. Moreover, from the viewpoint of the durability of the entire product, the lower limit of the position at which the ventilation is provided is preferably 0.5 mm or more from the mouth end of the cooling segment, more preferably 1.0 mm or more. That is, in one embodiment, the ventilation is provided in a range of 0.5 to 4 mm from the mouth end of the cooling segment toward the upstream, and in another embodiment, in a range of 1.0 to 2 mm. From the viewpoint of work efficiency, it is preferable to provide the ventilation by laser processing the completed non-combustion heating type flavor inhalation device. Also, the cooling segment 3 may be filled with a gathered sheet to improve heat exchange efficiency. The dimensions of the cooling segment 3 are not limited, but the length is preferably 15 to 25 mm, and the diameter is preferably 5.5 to 7.5 mm.

[0018] As described above, the ventilation is preferably arranged in the circumferential direction on the outer peripheral surface of the cooling segment. The number of circumferential arrangements is not limited as long as it is two or more. The hole diameter is preferably 100 to 1000 μm, and more preferably 300 to 800 μm. The shape of the opening is preferably approximately circular or approximately elliptical. In the case of an approximately elliptical shape, the major axis corresponds to the hole diameter.

[0019] The cooling segment 3 often has a lower rigidity than the tobacco rod 1. When parts having such different rigidities are connected with tipping paper, defects are less likely to occur if the diameter of the part with higher rigidity is made smaller than the diameter of the part with lower rigidity. Therefore, when the cooling segment 3 has a higher rigidity than the tobacco rod 1, it is preferable to make its diameter smaller than the diameter of the tobacco rod 1. For example, when the diameter of the tobacco rod is 7 mm, the diameters of the cooling segment and mouthpiece are preferably 6.9 mm.

[0020] (3) Mouthpiece The mouthpiece is a member that constitutes the mouth end. In the present invention, mouthpiece 5 includes first center hole filter 51 and second center hole filter 52 in this order toward the mouth end.

[0021] (3-1) Center hole filter As the center hole filter, for example, one having one space in the center of the filter can be used. In this case, the hole diameter is preferably 20 to 70% of the filter diameter, more preferably 20 to 40%. Specifically, the hole diameter is preferably 1.0 to 5.0 mm. The preferred lower limit is 1.2 mm or more or 1.5 mm or more, and the preferred upper limit is 4.5 mm or less, less than 4.5 mm, 3.0 mm or less, or 2.5 mm or less. The thickness (wall thickness) of the filter is preferably 1 to 3 mm, more preferably 2 to 3 mm. It is difficult to form holes with a hole diameter of the lower limit or less, and fluffing occurs on the inner wall, which may capture the aerosol and reduce the delivery efficiency. In addition, the durability of the mandrel forming the hole with a hole diameter of the lower limit or less may be a problem, and the shape of the hole may become unstable, such as the hole undulating due to the mandrel vibrating during production. If the hole diameter exceeds the condition value, the filter hardness cannot be guaranteed, the comfort of holding it in the mouth is reduced, and the thickness is thin, so that the durability may be reduced when it gets wet with saliva, etc. In one embodiment, the center hole filter is a filter with a diameter of 7 mm and a hole with a diameter of 2.0 mm. The cross-sectional area of ​​the hole is preferably 0.7 to 20 mm. 2More preferably, the thickness is 1.6 to 16 mm. 2 A center hole filter having a plurality of holes may also be used. In this case, the plurality of holes may be arranged, for example, at equal intervals along the circumferential direction. The total cross-sectional area of ​​the plurality of holes is preferably 0.7 to 20 mm 2 More preferably, the thickness is 1.6 to 16 mm. 2 It is.

[0022] In the present invention, the mouthpiece comprises two connected center hole filters (hereinafter also referred to as "CH"). The center hole filter present on the heating end side is referred to as the first center hole filter (hereinafter also referred to as "first CH"), and the center hole filter present on the mouth end side is referred to as the second center hole filter (hereinafter also referred to as "second CH"). By providing two connected CHs, the temperature near the mouth end during use is kept at a comfortable temperature for the user. In addition, the amount of aerosol source delivered can be increased, so a good flavor can be provided. The hole diameter (d1) of the first CH and the hole diameter (d2) of the second CH may be the same or different. These will be explained below.

[0023] 1) Hole diameter of 1st CH (d1) = Hole diameter of 2nd CH (d2) In this embodiment, the first CH and the second CH may be seamlessly integrated. That is, in the present invention, "connected" includes an embodiment in which the first CH and the second CH are seamlessly integrated. The length of the integrated center hole filter may be, for example, about twice as long as the first CH or the second CH. In this embodiment, the surface temperature (also called "tip temperature") and the steam temperature (also called "vapor temperature") near the mouth end can be reduced. The reason for this is not limited, but is presumed to be as follows. The aerosol flow path is suddenly narrowed by the CH, and the aerosol collides with the upstream end cross section of the CH. At this time, part of the heat is diffused to the flesh part (filter part) of the CH, so the vapor temperature is reduced, and the tip temperature is also reduced.

[0024] 2) Hole diameter of 1st CH (d1) < Hole diameter of 2nd CH (d2) If the hole diameters of the first CH and the second CH are different, the temperature near the mouth end during use can be lowered, which is preferable. This embodiment is shown in FIG. 1(1). In this embodiment, the tip temperature can be lowered. The reason is not limited, but is presumed to be as follows. The aerosol flow path is suddenly narrowed by the CH, and the aerosol collides with the upstream end cross section of the CH (S1 in FIG. 1(1)). At this time, part of the heat is diffused to the flesh part (filter part) of the CH, so the vapor temperature drops. In addition, since the upstream end cross section S1 is usually located upstream of the lips of the user, the temperature near the mouth end drops. Furthermore, a step also exists at the abutment part between the downstream end of the first CH 51 and the upstream end of the second CH 52, but the aerosol does not collide with the upstream end cross section S2 on the second CH 52 side, so the heat does not diffuse in the circumferential direction. Therefore, the temperature near the mouth end is lower.

[0025] The ratio of small diameter to large diameter is preferably 1:1.5 to 1:4, and more preferably 1:2 to 1:3. The preferred range of the hole diameters is as described above.

[0026] 3) Hole diameter of 1st CH (d1)> Hole diameter of 2nd CH (d2) This embodiment is shown in FIG. 1(2). In this embodiment, the vapor temperature can be lowered. The reason is not limited, but is presumed to be as follows. The vapor that has passed through the first CH51 is diffused into the filter section from the end cross section S2 of the second CH52, and is also diffused into the filter section from the inner peripheral surface of the second CH52. In this embodiment, the area introduced into the filter section is large, and heat is exchanged during diffusion in the filter section, so that the vapor temperature can be lowered efficiently. Furthermore, the aerosol collides with the end cross sections S1 and S2 a total of two times, so that heat is diffused into the filter, and the vapor temperature is further reduced. On the other hand, since heat is also diffused from the end cross section S2 in the circumferential direction, the tip temperature is slightly higher than in embodiment 2). The ratio of small diameter:large diameter and the preferred diameter range in this embodiment are as explained in 2).

[0027] In either embodiment, it is preferable that the hole diameter of at least one of the first CH or the second CH is less than 4.5 mm, since this makes it possible to lower the vapor temperature.

[0028] In any embodiment, the first CH and the second CH have the same length, and each length is preferably about 9 to 16% of the total length of the non-combustion heating type flavor inhalation device 10. In one embodiment, each length is about 5 to 9 mm.

[0029] Each of the first CH and the second CH may be wrapped with a filter wrapper (filter inner wrapper), and they may be connected with a filter forming paper (filter outer wrapper). The diameter of the mouthpiece 5 is not limited, but is preferably the same as that of the cooling segment 3.

[0030] It is preferable that the first CH and the second CH have a certain hardness. This is because the CH is less likely to deform and the contact area with the user's lips is smaller, so that the user is less likely to feel an uncomfortable temperature. As disclosed in paragraphs 0010 to 0014 of the specification of JP2016-523565A, the hardness in the present invention means the resistance when a member is deformed. The hardness can be obtained from the change in diameter before and after applying a load to the side of the tobacco rod. Specifically, the hardness is measured as follows. 1) The CH is placed on the substrate with its longitudinal direction horizontal, and its height Ds is measured. 2) The CH side surface is pressed and compressed using a pressure tool. Pressure: 300g, Pressure time: 10 seconds, Pressure jig head diameter: φ12mm 3) Measure the height Dd of the CH after pressure application. 4) Calculate the hardness H (%) using the following formula. H(%)=Dd / Ds×100

[0031] The hardness of CH is preferably 90% or more, more preferably 93% or more, and further preferably 95% or more. The upper limit is not limited, but is about 99% or less or about 98% or less.

[0032] The single fiber fineness of the fibers constituting the CH is preferably 5 to 12 (denier / filament), more preferably 5 to 8 (denier / filament). The total fiber fineness is preferably 30,000 to 60,000 (denier / total), more preferably 35,000 to 45,000 (denier / total). The cross-sectional shape of the fiber is preferably R-shaped or Y-shaped, and Y-shaped is more preferable from the viewpoint of cost. In a non-combustion heating type flavor inhalation device, the amount of aerosol generated is less than that of a normal combustion type flavor inhalation device, so it is preferable that the loss of aerosol in the CH is small. If the fiber packing density of the wall part (meat part) of the CH is too low, the aerosol will be filtered in that part. Therefore, it is preferable that the tow packing density of the wall part of the CH is relatively high within the range that allows high-speed production. By setting the single fiber fineness and total fiber fineness within the above numerical range, a CH with a low filtration rate and suitable for use can be obtained. In addition, triacetin can be used as a plasticizer to increase the filter hardness. The amount of triacetin added is preferably 10 to 20% by weight based on the tow weight.

[0033] (4) Tip paper The tipping paper 7 refers to paper used to connect two or more of the tobacco rod 1, the cooling segment 3, and the mouthpiece 5. On the other hand, the wrapper refers to paper for wrapping each of the components that make up the tobacco rod 1, the cooling segment 3, or the mouthpiece 5.

[0034] The base paper used for the chip paper and wrapper is not limited, and may be one using cellulose fiber. Such cellulose fiber may be either plant-derived or chemically synthesized, or may be a mixture of these. Examples of plant-derived fibers include pulp of flax fiber, wood fiber, seed fiber, etc., and may be unbleached colored pulp that has not been bleached, but it is preferable to use bleached pulp bleached with a bleaching agent such as an oxidizing agent or a reducing agent in order to achieve a white and clean appearance.

[0035] In the case of cigarette papers for ordinary cigarettes, alkali metal citrates and the like are used as ordinary combustion regulators (combustion improvers, etc.) that can affect the spontaneous combustion rate of the cigarette papers. In the present invention, since the product is a heating-type flavor inhalation device, the wrapper does not need to contain a combustion regulator. Also, unlike ordinary cigarettes, the tobacco filler of the present invention may contain an aerosol generating source, as described above. In this case, it is preferable to use oil-resistant and water-resistant cigarette paper as the tipping paper.

[0036] The lower limit of the basis weight of the wrapper is preferably 30 g / m 2 More preferably, it is 35 g / m 2 More preferably, it is 40 g / m 2 The upper limit is preferably 65 g / m 2 Less than 50 g / m 2 The lower limit of the basis weight of the tip paper is preferably 20 g / m 2 More preferably, it is 25 g / m 2 More preferably, it is 30 g / m 2 The upper limit is preferably 50 g / m 2 Less than 45g / m 2 More preferably, 40 g / m 2 The basis weight can be measured by the method specified in JIS P8124.

[0037] The non-combustion heating type flavor inhalation device of the present invention may include other members than those described above, as long as the effects of the invention are not impaired. Examples of such members include a support member and a filter segment such as an acetate filter. These members may be disposed at any position, but are preferably not disposed at the mouth end. The non-combustion heating type flavor inhalation device of the present invention may also include a carbon heat source on the upstream side of the tobacco rod, i.e., at the tip of the flavor inhalation device. In this embodiment, the tobacco rod is heated by the carbon heat source. However, the non-combustion heating type flavor inhalation device of the present invention is particularly useful for an electric heating system in which the heating temperature is higher than that of a carbon heat source heating system.

[0038] 4. Manufacturing method The manufacturing method of the non-combustion heat-type flavor inhalation device of the present invention is not limited, but it can be manufactured by preparing a tobacco rod 1 and a mouthpiece 5, forming a cooling segment 3 between the tobacco rod 1 and the mouthpiece 5, and wrapping them with tipping paper 7. Alternatively, the non-combustion heat-type flavor inhalation device of the present invention can be manufactured by preparing a tobacco rod 1, a paper tube as the cooling segment 3, and the mouthpiece 5, and wrapping these three components with tipping paper 7.

[0039] 3. Non-combustion heating type flavor inhalation system The non-combustion heating type flavor inhalation system of the present invention comprises a non-combustion heating type flavor inhalation tool 10 and a heater 30. The heater preferably electrically heats the tobacco rod 1. The heater preferably comprises a heating unit equipped with a power source and the like. Figure 2 shows one embodiment of the non-combustion heating type system of the present invention. In the figure, 100 is a non-combustion heating type flavor inhalation system, 10 is a non-combustion heating type flavor inhalation tool, and 30 is a heating unit equipped with a heater.

[0040] The shape of the heater is not limited, and may be disposed on the outer periphery of the tobacco rod 1, or may be inserted inside the tobacco rod 1. The heater may be, for example, a sheet-shaped heater, a flat heater, a cylindrical heater, or a needle-shaped heater. The sheet-shaped heater is a flexible sheet-shaped heater, for example, a heater including a film (thickness: about 20 to 225 μm) of a heat-resistant polymer such as polyimide. The flat heater is a rigid flat heater (thickness: about 200 to 500 μm), for example, a heater having a resistance circuit on a flat substrate and using that part as a heat generating part. The cylindrical heater is a hollow or solid cylindrical heater, for example, a heater having a resistance circuit on the outer periphery and using that part as a heat generating part. The cross-sectional shape of the cylindrical heater may be a circle, an ellipse, a polygon, a polygon with rounded corners, or the like. The cylindrical heater and the needle-shaped heater are suitable for a method of being inserted inside the tobacco rod 1 and heating from the inside. EXAMPLES

[0041] [Example 1] The following materials were prepared: A tobacco rod with a diameter of 7.1 mm and a length of 20 mm (manufactured by Japan Tobacco Inc., containing tobacco shreds as a flavor source and glycerin as an aerosol source) 1st CH (8Y-40000) with diameter 6.9 mm, hole diameter 4.5 mm, length 8 mm 2nd CH (8Y-40000) with diameter 6.9 mm, hole diameter 2.0 mm, length 8 mm These components were arranged as shown in Figure 1 (2) and wrapped with 24 mm x 40 mm tipping paper to produce a non-combustion heating type flavor inhalation device.

[0042] As a heating device for heating the non-combustion heating type flavor inhalation tool, a heating unit was prepared that includes a cylindrical heater with a length of 22.5 mm and a diameter of 7.2 mm, a battery for heating the heater, a control circuit for controlling the heater and the battery, and a housing for housing each component. The non-combustion heating type flavor inhalation tool was inserted into the heater to obtain a non-combustion heating type flavor inhalation system.

[0043] The heater was heated to 230°C within 17 seconds and maintained at that temperature for 23 seconds. Thereafter, a smoking test was performed using an automatic smoking device (RM26 manufactured by Bolgwaldt). Specifically, the test was performed using a device as shown in FIG. 3. In FIG. 3, 10 is a non-combustion heating type flavor inhalation device, 30 is a heating unit, 200 is an adapter, and 300 is an automatic smoking device. The adapter 200 accommodates the non-combustion heating type flavor inhalation device 10 and is connected to the automatic smoking device 300. K1 is a film thermocouple fixed to the surface of the non-combustion heating type flavor inhalation device 10 at a position 5 mm from the mouth end using polyimide tape. K2 is a wire thermocouple fixed to the adapter 200. The surface temperature of the mouthpiece was measured by K1, and the smoke temperature was measured by K2. The suction volume was 35 mL / 2 sec.

[0044] In addition, the delivery amount of glycerin as an aerosol source and the delivery amount of nicotine as an example of a flavor component were measured. The machine smoking method and the method of collecting the generated aerosol were in accordance with CORRESTA RECOMMENDED METHOD No. 81 "ROUTINE ANALYTICAL MACHINE FOR E-CIGARETTE AEROSOL GENERATION AND COLLECTION - DEFINITIONS AND STANDARD". The Cambridge filter that collected the aerosol placed in the automatic smoking device 300 was collected, and the amount of nicotine was measured using gas chromatography. The Cambridge filter is a flat circular glass fiber filter with a diameter of about 44 mm and a thickness of 1.5 mm, and is well known and widely used by those skilled in the art as a filter that can capture particulate matter. The Cambridge filter is available from Japan Cambridge Filter Co., Ltd., Borgwalt (catalog number 8020 285 2), etc. The collected aerosol particulate matter (Total Particle Matter, hereinafter referred to as "TPM") was analyzed for nicotine as a representative of flavor components contained therein, and the amount of nicotine in the TPM was determined. The nicotine amount was determined by a method commonly used by those skilled in the art. The results are shown in Table 1.

[0045] [Example 2] A non-combustion and heating type flavor inhalation device was manufactured and evaluated in the same manner as in Example 1, except that a CH having a diameter of 6.9 mm, a hole diameter of 1.5 mm, and a length of 8 mm was used as the second CH.

[0046] [Examples 3 and 4] In Examples 1 and 2, the positions of the first CH and the second CH were interchanged to produce a non-combustion heating type flavor inhalation device as shown in FIG. 1(1).

[0047] [Example 5] A CH twice as long as the first CH used in Example 1 was prepared. A non-combustion heating type flavor inhalation device was manufactured and evaluated in the same manner as in Example 1, except that the first CH and the second CH in Example 1 were replaced with the double-length CH.

[0048] [Example 6] A CH twice as long as the second CH used in Example 1 was prepared. A non-combustion heating type flavor inhalation device was manufactured and evaluated in the same manner as in Example 1, except that the first CH and the second CH in Example 1 were replaced with the twice-long CH.

[0049] [Example 7] A CH twice as long as the second CH used in Example 2 was prepared. A non-combustion heating type flavor inhalation device was manufactured and evaluated in the same manner as in Example 1, except that the first CH and the second CH in Example 2 were replaced with the twice-long CH.

[0050] [Comparative Example 1] An acetate filter (5Y-30000) with a diameter of 6.9 mm and a length of 7 mm was prepared. A non-combustion heating type flavor inhalation system was prepared and evaluated in the same manner as in Example 1, except that the second CH was replaced with the acetate filter (AF).

[0051] The results are shown in Table 1. Furthermore, the hardness of each CH was measured by the method described in the specification (number of samples: 50) and the results are shown in Table 2.

[0052] [Table 1]

[0053] [Table 2]

[0054] From a comparison between the embodiment and comparative example 1, it is clear that when a CH is arranged on the mouth side, a larger amount of glycerin is delivered, sufficient flavor can be supplied, and the tip temperature can be lowered compared to when an AF is arranged. In particular, it is clear that when a CH with a hole diameter of less than 4.5 is arranged, the vapor temperature can also be lowered. Increasing the CH diameter is advantageous for lowering the tip temperature, and decreasing the CH diameter is advantageous for lowering the vapor temperature. Furthermore, it is clear that using a CH with a different hole diameter can further lower the temperature at the mouth end. The user can comfortably use the non-combustion heating type flavor inhalation device system of the present invention. [Explanation of symbols]

[0055] 1 tobacco rod 3 Cooling Segment 5 Mouthpiece 51 1st Center Hole Filter 52 2nd Center Hole Filter 7 Tip Paper V Ventilation 10. Non-combustion heating type flavor inhalation device 30 Heating unit equipped with a heater 100 Non-combustion heating type flavor inhalation system 200 Adapter 300 Automatic smoking device K1 film thermocouple K2 wire thermocouple

Claims

1. A non-combustion heating type flavor inhalation device comprising a tobacco rod, a cooling segment, and a mouthpiece, the mouthpiece comprises two connected center hole filters; When the hole diameter of the first center hole filter located on the tobacco rod side is d1 and the hole diameter of the second center hole filter located on the mouth end side is d2, d1<d2; further comprising an acetate filter; The flavor inhalation device.

2. The cross-sectional area of ​​the hole of the center hole filter is 0.7 to 20 mm ２ The flavor inhalation device according to claim 1 ,

3. The flavor inhalation device according to claim 1 or 2, wherein the ratio of d1 to d2 is 1:1.5 to 1:

4.

4. The flavor inhalation device according to any one of claims 1 to 3, wherein the hole diameter of the center hole filter is 1.0 to 5.0 mm.

5. The flavor inhalation device according to any one of claims 1 to 4, wherein the hardness of the center hole filter measured by the following method is 90% or more. Measurement method 1) The center hole filter is placed on the substrate with its longitudinal direction horizontal, and its height Ds is measured. 2) Using a pressure tool, the side surface of the center hole filter is pressed and compressed. Pressure: 300 g, pressure time: 10 seconds, pressure jig head diameter: φ12 mm 3) Measure the height Dd of the center hole filter after pressure application. 4) Calculate the hardness H (%) from the following formula. H (%)=Dd / Ds×100

6. The flavor inhalation device according to claim 5 , wherein the hardness is 95% or more.

7. The flavor inhalation device according to any one of claims 1 to 6, wherein the center hole filter has a wall thickness of 1 to 3 mm.

8. The flavor inhalation device according to any one of claims 1 to 7, wherein the diameter is 6 to 8 mm.

9. 9. The flavor inhalation device according to claim 1, wherein the center hole filter has a monofilament size of 5 to 12 (denier / filament).

10. The flavor inhalation device according to claim 9, wherein the center hole filter has a monofilament size of 5 to 8 (denier / filament).

11. The flavor inhalation device according to any one of claims 1 to 10, wherein the center hole filter has a total fineness of 30,000 to 60,000 (denier / total).

12. The flavor inhalation device according to claim 11, wherein the center hole filter has a total fineness of 35,000 to 45,000 (denier / total).

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