JP2023123799A - Non-combustion heating type flavor inhaler - Google Patents

Abstract

An object of the present invention is to provide a non-combustion heating type flavor suction device whose temperature near the mouthpiece end is not uncomfortable for the user during use. A non-combustion heated flavor suction device 10 includes a tobacco rod 1, a cooling segment 3, and a mouthpiece 5, in which the mouthpiece 5 connects a filter 52 and a center hole filter 54 toward the mouth end. Prepare in order. [Selection diagram] Figure 1

Description

The present invention relates to a non-combustion heated flavor inhaler comprising a tobacco rod, a cooling segment and a mouthpiece.

In recent years, a product using a non-combustion-heating flavor inhaler inserted into a device has been marketed (for example, Patent Document 1). These non-combustion heating type flavor inhalers are desired to have a certain thickness or more from the viewpoint of ease of insertion into devices and delivery of sufficient flavor and taste. However, as the diameter of the non-combustion heating type flavor inhaler increases, the amount of heat applied to the device increases and the area of contact with the lips also increases. As a result, the temperature in the vicinity of the mouth end rises, and the user may feel uncomfortable with the temperature in the vicinity of the mouth end during use.

WO2017/198837

An object of the present invention is to provide a non-combustion heating type flavor inhaler whose temperature near the end of the mouthpiece is not uncomfortable for the user during use.

Means for solving the invention

The flavor inhaler described in Patent Literature 1 has a mouthpiece provided with a filter and a paper tube in this order toward the mouthpiece end. However, the inventors considered that there is room for improvement in the flavor inhaler described in Patent Document 1, and completed the present invention. That is, the above problems are solved by the present invention described below.
[1] A non-combustion heating flavor suction device comprising a tobacco rod, a cooling segment, and a mouthpiece,
The flavor inhaler, wherein the mouthpiece is provided with a filter and a center hole filter in this order toward the mouthpiece end.
[2] The flavor inhaler according to [1], wherein the hole diameter of the center hole filter is 20 to 40% of the diameter of the center hole filter.
[3] The flavor inhaler according to [1] or [2], wherein the hardness of the center hole filter measured by the following method is 90% or more.
Measurement method 1) A center hole filter is placed on a substrate so that its longitudinal direction is horizontal, and its height Ds is measured.
2) Using a pressurizing jig, pressurize 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 x 100
[4] The flavor inhaler according to [3], wherein the hardness is 95% or more.
[5] The flavor inhaler according to any one of [1] to [4], wherein the center hole filter has a wall thickness of 1 to 3 mm.
[6] The flavor inhaler according to any one of [1] to [5], wherein the center hole filter has a cross-sectional area of 0.7 to 20 mm ² .
[7] The flavor inhaler according to any one of [1] to [6], wherein the center hole filter has a single fineness of 5 to 12 (denier/filament).
[8] The flavor inhaler according to [7], wherein the center hole filter has a single fineness of 5 to 8 (denier/filament).
[9] The flavor inhaler according to any one of [1] to [8], wherein the center hole filter has a total fineness of 30,000 to 60,000 (denier/total).
[10] The flavor inhaler according to [9], wherein the center hole filter has a total fineness of 35,000 to 45,000 (denier/total).
[11] The flavor inhaler according to any one of [1] to [10], which has a diameter of 6 to 8 mm.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a non-combustion heating type flavor inhaler in which the vicinity of the tip of the mouthpiece reaches a comfortable temperature for the user during use.

Figure showing the non-combustion heating type flavor inhaler of the present invention A diagram showing a non-combustion heating type flavor suction system of the present invention. Diagram showing apparatus for smoking test

The present invention will be described in detail below. In the present invention, "X to Y" includes X and Y which are the end values.

1. Non-combustion Heating Flavor Inhaler The non-combustion heating flavor inhaler of the present invention comprises a tobacco rod, a cooling segment, and a mouthpiece. Prepare. FIG. 1 shows one embodiment of the non-combustion heating type flavor inhaler of the present invention. In the figure, 10 is a non-combustion heating type flavor inhaler, 1 is a tobacco rod, 3 is a cooling segment, 5 is a mouthpiece, 52 is a filter, 54 is a center hole filter, 7 is tip paper, and V is a ventilation. The diameter of the flavor suction device is preferably 6-8 mm. The diameter is defined as the average diameter of the members that make up the flavor inhaler.

(1) Tobacco Rod A tobacco rod is a substantially columnar member for generating flavor and taste components contained in tobacco raw materials, and includes a tobacco filler and a wrapper wound therearound. The tobacco filler is not limited, and for example, cut tobacco, tobacco sheets, and the like can be used. Specifically, the wrapper may be filled with shredded tobacco obtained by cutting dried tobacco leaves into widths of 0.8 to 1.2 mm. In addition, dry tobacco leaves are pulverized to an average particle size of about 20 to 200 μm and homogenized, processed into sheets, cut into widths of 0.8 to 1.2 mm, and filled in wrappers. You may The sheet may be gathered, folded, or coiled and filled without being chopped. The sheet may be cut into strips and these strips may be packed in the wrapper concentrically or with the longitudinal direction of the strips parallel to the longitudinal direction of the tobacco rod.

Various kinds of tobacco leaves can be used, and for example, yellow varieties, burley varieties, orient varieties, native varieties, other Nicotiana-Tabacum varieties, Nicotiana-Rustica varieties, and mixtures thereof can be used. As the mixture, an appropriate blend of the above varieties can be used so as to obtain the desired taste. Details of the tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Research Center, March 31, 2009".

The method for producing the homogenized sheet, that is, the method for pulverizing 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 of making a papermaking sheet using a papermaking process. A method in which pulverized tobacco leaves are mixed with an appropriate solvent such as water and homogenized, and then the homogenized product is thinly cast on a metal plate or metal plate belt and dried to produce a cast sheet. A rolled sheet is produced by mixing pulverized tobacco leaves with an appropriate solvent such as water, homogenizing the mixture, and extruding the mixture into a sheet. The types of the homogenizing sheet are disclosed in detail in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009".

The tobacco filling may contain moisture, and the content thereof may be 10 to 15% by weight, preferably 11 to 13% by weight, based on the total weight of the tobacco filling. Use of a content tobacco filler containing such amount of moisture suppresses the occurrence of stains and improves the winding aptitude when manufacturing tobacco rods.

The tobacco rod 1 may generate steam as it is heated. It is preferred to add an aerosol source such as polyols such as glycerin, propylene glycol, 1,3-butanediol, etc. to the tobacco filler to facilitate aerosol generation. 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. Although the length of tobacco rod 1 is not limited, it is preferably 15 to 25 mm. Although the diameter is not limited, it is preferably 6 to 8 mm.

The tobacco rod 1 may contain perfume. The type of flavoring agent is not particularly limited, and the following may be mentioned from the viewpoint of imparting a good smoking taste. Acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, peruvian balsam oil, beeswax absolute, benzaldehyde, benzoin resinoids, benzyl alcohol, benzoin. Benzyl acid, 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, cocoa, coffee, cognac oil, coriander oil, Cuminaldehyde, davana oil, delta-decalactone, gamma-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydro furan-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-hexene-1 -ol, hexyl acetate, hexyl alcohol, hexyl phenylacetate, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2 -cyclohexene-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, inmolter absolute, β-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, phenyl Isobutyl acetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpeneless oil, licorice extract, linalool, linalyl acetate, lovage 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, honey, myristic acid, nerol, nerolidol, γ-nonalactone , nutmeg oil, δ-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, ω-pentadecalactone, peppermint oil, petitgrain paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenyl Acetic acid, piperonal, plum extract, propenylguaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, stylus. Lux absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo (8.3.0. 0(4.9)) tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclo hexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl)2-butene -4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carbamide (WS-3), ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5). Among them, menthol is preferred. Moreover, these perfumes may be used alone, or two or more of them may be used in combination.

The packing density of the tobacco filling is not particularly limited, but is usually 250 mg/cm ³ or more, preferably 320 mg/cm ³ or more, from the viewpoint of securing the characteristics of the non-combustion heating type flavor inhaler and imparting a good smoking taste. is. Moreover, the upper limit is usually 800 mg/cm ³ or less, preferably 600 mg/cm ³ or less.

(2) Cooling segment The cooling segment is a member for promoting aerosolization by cooling flavor components and steam generated in the tobacco rod 1 . The cooling segment 3 may be a hollow paper tube. The paper tube is preferably made of cardboard, which is more rigid than the wrapper or tipping paper. Ventilation V (opening) may be provided in the paper tube. A plurality of ventilations are preferably provided along the circumference of the paper tube. From the viewpoint of promoting aerosolization and cooling, the upper limit of the position where the ventilation is provided from the inlet side end of the cooling segment toward the heating end is preferably within 4 mm from the inlet side end of the cooling segment, and is 2 mm. A range within is more preferable. Moreover, the lower limit of the position where the ventilation is provided is preferably 0.5 mm or more, more preferably 1.0 mm or more, from the end of the cooling segment on the mouthpiece side, from the viewpoint of durability of the entire product. That is, in one aspect, the ventilation is provided upstream from the mouth end of the cooling segment in the range of 0.5 to 4 mm, and in another aspect in the range of 1.0 to 2 mm. From the viewpoint of work efficiency, the ventilation is preferably provided by applying laser processing to the completed non-combustion heating type flavor inhaler. In addition, the cooling segment 3 may be filled with gathered sheets to enhance heat exchange efficiency. The dimensions of the cooling segment 3 are not limited, but the length is preferably 15-25 mm and the diameter is preferably 5.5-7.5 mm.

As mentioned above, the ventilation is preferably arranged circumferentially on the outer peripheral surface of the cooling segment. The number of arrangement in the circumferential direction is not limited as long as it is two or more. The pore size is preferably 100-1000 μm, more preferably 300-800 μm. The shape of the apertures is preferably approximately circular or approximately elliptical. In the case of a substantially elliptical shape, the major axis corresponds to the pore diameter.

Cooling segment 3 is often less rigid than tobacco rod 1 . When connecting such parts with different rigidity with chip paper, defects are less likely to occur if the diameter of the part with high rigidity is made smaller than the diameter of the part with low rigidity. Therefore, if the cooling segment 3 has a higher stiffness than the tobacco rod 1, it is preferable to make its diameter smaller than the tobacco rod 1 diameter. For example, if the diameter of the tobacco rod is 7 mm, the diameter of the cooling segment, mouthpiece is preferably 6.9 mm.

(3) Mouthpiece The mouthpiece is a member that constitutes the mouth end. In the present invention, the mouthpiece 5 has a filter 52 and a center hole filter 54 in this order toward the mouth end.

(3-1) Filter As the filter 52, a known solid filter member such as an acetate filter or a paper filter can be used. A paper filter is a paper-filled filter prepared by processing paper with a crepe roller or the like to wrinkle it and winding it up with plug winding paper. An acetate filter is a filter filled with cellulose acetate fibers. The single fineness of fibers constituting the acetate filter is preferably 5 to 12 (denier/filament), more preferably 5 to 8 (denier/filament). The total fineness of the fibers is preferably 12,000 to 35,000 (denier/total), more preferably 20,000 to 30,000 (denier/total). In the non-combustion heating type flavor inhaler, since the amount of aerosol generated is smaller than that of a normal combustion type flavor inhaler, it is preferable that the amount of filtration by the filter is small. If the single fineness is large, the filtration rate will decrease, but on the other hand, it will become difficult to manufacture the acetate filter. On the other hand, if the total fineness is small, the filtration rate will decrease, but if the total fineness is too small, the packing density of the fibers will excessively decrease and the hardness of the acetate filter will decrease. From these points of view, it is possible to obtain an acetate filter which has a low filtration rate and is suitable for use by setting the single fineness and the total fineness within the numerical ranges described above. Although the cross-sectional shape of the fiber is not limited, it is preferably R-shaped or Y-shaped, and more preferably Y-shaped from the viewpoint of cost. Triacetin can also be used as a plasticizer to increase filter hardness. The amount of triacetin added is preferably 5 to 10% by weight based on the weight of the tow.

(3-2) Center Hole Filter As the center hole filter 54, for example, a filter having a space in the center can be used. In this case, the hole diameter is preferably 20-70% of the filter diameter, more preferably 20-40%. 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, 3.0 mm or less, or 2.5 mm or less. The wall thickness (wall thickness) of the filter is preferably 1 to 3 mm, more preferably 2 to 3 mm. It is difficult to form a hole with a hole diameter equal to or less than the lower limit, and the inner wall may become fuzzy, trapping the aerosol, and reducing the delivery efficiency. In addition, a problem arises in the durability of the mandrel that forms the hole with the hole diameter equal to or less than the lower limit value, and the mandrel vibrates during manufacturing, resulting in unstable hole shape such as undulation of the hole. If the hole diameter exceeds the conditional value, the hardness of the filter cannot be ensured and the comfort in the mouth decreases, and furthermore, the wall thickness becomes thin, so there is a possibility that the durability will decrease when wet with saliva or the like. In one embodiment, the center hole filter includes a 7 mm diameter filter with a 4.5 mm diameter hole. Also, the cross-sectional area of the hole is preferably 0.7-20 mm ² , more preferably 1.6-16 mm ² . Alternatively, a center hole filter with multiple holes may be used. In this case, the plurality of holes may, for example, be equally spaced along the circumference. The total cross-sectional area of the plurality of holes is preferably 0.7-20 mm ² , more preferably 1.6-16 mm ² .

The lengths of the filter 52 and the center hole filter 54 are preferably about 9 to 16% of the total length of the non-combustion heating type flavor inhaler 10, respectively. In one embodiment, the length of each of filter 52 and center hole filter 54 is on the order of 5-9 mm.

Each of the filter 52 and the center hole filter 54 may be wrapped by a filter wrapper (filter inner wrapper) and connected by a filter molding paper (filter outer wrapper). The diameter of mouthpiece 5 is not limited, but is preferably the same as that of cooling segment 3 .

The center hole filter 54 preferably has a certain hardness. This is because the center hole filter 54 is difficult to deform and the contact area with the user's lips is small, so that the user is less likely to feel uncomfortable temperature. Hardness in the present invention means resistance when a member is deformed, as disclosed in paragraphs 0010 to 0014 of JP-A-2016-523565. Firmness can be determined from the change in diameter before and after loading the sides of the tobacco rod. Specifically, hardness is measured as follows.
1) Place the center hole filter on the substrate so that its longitudinal direction is horizontal, and measure its height Ds.
2) Using a pressurizing jig, pressurize 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 x 100

The hardness of the center hole filter 54 is preferably 90% or higher, more preferably 93% or higher, still more preferably 95% or higher. Although the upper limit is not limited, it is about 99% or less or 98% or less.

The single fineness of the fibers constituting the center hole filter is preferably 5 to 12 (denier/filament), more preferably 5 to 8 (denier/filament). Further, the total fineness of the fibers 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 the non-combustion heating type flavor inhaler, since the amount of aerosol generated is smaller than that of a normal combustion type flavor inhaler, it is preferable that the aerosol loss in the center hole filter is small. If the packing density of the fibers in the wall portion (nick portion) of the center hole filter is too low, the aerosol will be filtered at that portion. Therefore, it is preferable that the center-hole filter has a relatively high tow packing density in the walls within a range that enables high-speed production. By setting the single fineness and the total fineness within the above numerical ranges, it is possible to obtain a center hole filter that has a low filtration rate and is suitable for use. Triacetin can also be used as a plasticizer to increase filter hardness. The amount of triacetin added is preferably 10 to 20% by weight based on the weight of the tow.

(4) Tipping paper The tipping paper 7 is 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 the individual members constituting the tobacco rod 1, the cooling segment 3, or the mouthpiece 5. FIG.

The base paper used for the chipping paper and wrapper is not limited and includes those using cellulose fibers. Such cellulose fibers may be plant-derived or chemically synthesized, or may be a mixture thereof. Examples of plant-derived fibers include pulps such as flax fibers, wood fibers, and seed fibers. Unbleached colored unbleached pulp may be used. The use of bleached pulp bleached with a bleaching agent such as a reducing agent is preferred.

In the case of ordinary cigarette papers, alkali metal citrates and the like are used as ordinary combustion modifiers (combustion improvers, etc.) that can affect the spontaneous burning rate of the cigarette paper. Since the present invention is a heating type flavor inhalation device, the wrapper does not need to contain a combustion control agent. Also, unlike conventional 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 wrapping paper as the tipping paper.

The lower limit of the basis weight of the wrapper is preferably 30 g/m ² or more, more preferably 35 g/m ² or more, still more preferably 40 g/m ² or more. The upper limit is preferably 65 g/m ² or less, more preferably 50 g/m ² or less. The lower limit of the basis weight of the tipping paper is preferably 20 g/m ² or more, more preferably 25 g/m ² or more, and even more preferably 30 g/m ² or more. The upper limit is preferably 50 g/m ² or less, more preferably 45 g/m ² or less, even more preferably 40 g/m ² or less. The basis weight can be measured by the method specified in JIS P8124.

The non-combustion heating type flavor inhaler of the present invention may be provided with members other than the above as long as the effects of the present invention are not impaired. Such members include support members and the like. These members may be located anywhere, but preferably are not located at the tip end. Further, the non-combustion heating type flavor inhaler of the present invention may be provided with a carbon heat source on the upstream side of the tobacco rod, that is, at the tip of the flavor inhaler. In this embodiment, the tobacco rod is heated by a carbon heat source. However, the non-combustion heating type flavor inhaler of the present invention is particularly useful for an electric heating system in which the heating temperature is higher than that of the carbon heat source heating system.

The non-combustion heating type flavor inhaler of the present invention does not make the user feel uncomfortable with the temperature near the end of the mouthpiece during use (at the time of inhalation). Although the reason for this is not limited, it is inferred as follows. The non-combustion heating type flavor inhaler of the present invention has a filter 52 and a center hole filter 54 in this order as a mouthpiece in the mouth end direction. The aerosol is first introduced into filter 52 . When the air is introduced from the filter 52 into the center hole 54, the ventilation resistance is lowered and the flow path is suddenly narrowed. At this time, the flow velocity of the aerosol increases and the residence time in the center hole filter 54 is shortened. For this reason, it is thought that the user is less likely to feel uncomfortable high temperatures.

2. Manufacturing method The manufacturing method of the non-combustion heating type flavor inhaler of the present invention is not limited, but the tobacco rod 1 and the mouthpiece 5 are prepared, and the cooling segment 3 is formed between the tobacco rod 1 and the mouthpiece 5. These can be manufactured by wrapping them with tip paper 7. Alternatively, the non-combustion heating type flavor inhaler of the present invention is prepared by preparing the tobacco rod 1, the paper tube as the cooling segment 3, and the mouthpiece 5, and wrapping these three members with the tipping paper 7. can be manufactured.

3. Non-Combustion Heating Flavor Inhalation System The non-combustion heating flavor inhalation system of the present invention comprises a non-combustion heating flavor inhalation device 10 and a heater 30 . The heater heats the tobacco rod 1, preferably electrically. Preferably, the heater comprises a heating unit comprising a power supply or the like. FIG. 2 shows one embodiment of the non-combustion heating system of the present invention. In the figure, 100 is a non-combustion heating type flavor suction system, 10 is a non-combustion heating type flavor suction device, and 30 is a heating unit provided with a heater.

The shape of the heater is not limited, and it may be arranged on the outer circumference of the tobacco rod 1 or inserted inside the tobacco rod 1 . The heater may be, for example, a sheet heater, a flat heater, a cylindrical heater, or a needle heater. A sheet-shaped heater is a flexible sheet-shaped heater, for example, a heater including a heat-resistant polymer film (about 20 to 225 μm in thickness) such as polyimide. A flat heater is a rigid flat heater (having a thickness of about 200 to 500 μm), and includes, for example, a heater having a resistance circuit on a flat plate substrate and using the relevant portion as a heat generating portion. A cylindrical heater is a hollow or solid cylindrical heater, and includes, for example, a heater that has a resistance circuit on its outer peripheral surface and uses that portion as a heat generating portion. The cross-sectional shape of the tubular heater may be a circle, an ellipse, a polygon, a polygon with rounded corners, or the like. A cylindrical heater or a needle-like heater is suitable for a method in which the tobacco rod 1 is inserted into the inside and heated from the inside.

[Example 1]
The following materials were prepared.
Tobacco rod with a diameter of 7.1 mm and a length of 20 mm (manufactured by Japan Tobacco Inc.)
Center hole filter (8Y-40000) with a diameter of 6.9 mm, a hole diameter of 4.5 mm, and a length of 8 mm
Acetate filter (5Y-30000) with a diameter of 6.9 mm and a length of 7 mm
These members were arranged as shown in FIG. 1 and wrapped with chip paper of 24 mm×40 mm to produce a non-combustion heating type flavor inhaler.

As a heating device for heating the non-combustion heating type flavor inhaler, a cylindrical heater with a length of 22.5 mm and a diameter of 7.2, a battery for heating the heater, and a heater and battery for controlling A heating unit having a control circuit and a housing for controlling each member was prepared. A non-combustion heating flavor inhalation system was obtained by inserting the non-combustion heating flavor inhalation instrument into the heater.

The heater was raised to 230° C. within 17 seconds and held at that temperature for 23 seconds. After that, a smoking test was conducted using an automatic smoking device (RM26 manufactured by Bolgwaldt). Specifically, the test was conducted using an apparatus as shown in FIG. In FIG. 3, 10 is a non-combustion heating type flavor inhaler, 30 is a heating unit, 200 is an adapter, and 300 is an automatic smoking device. The adapter 200 accommodates the non-combustion heating flavor inhaler 10 and is connected to the automatic smoking device 300 . _K1 is a film thermocouple fixed on the surface of the non-combustion heating flavor inhaler 10 at a position 5 mm from the mouthpiece end using a polyimide tape. K ₂ is a wire thermocouple affixed to adapter 200 . K ₁ measured the surface temperature of the mouthpiece and K ₂ the smoke temperature. The suction volume was 35 mL/2 sec. Table 1 shows the results.

[Comparative Example 1]
A non-combustion heating type flavor inhalation system was prepared and evaluated in the same manner as in Example 1, except that the acetate filter and the center hole filter were replaced. Table 1 shows the results.

It was found that the non-combustion heating type flavor inhaler system of the present invention has a lower surface temperature of the mouthpiece than the comparative system. A user can comfortably use the non-combustion heated flavor inhaler system of the present invention.

1 Tobacco Rod 3 Cooling Segment 5 Mouthpiece 52 Filter 54 Center Hole Filter 7 Tip Paper V Ventilation

REFERENCE SIGNS LIST 10 non-combustion heating flavor suction device 30 heating unit with heater 100 non-combustion heating flavor suction system

200 Adapter 300 Automatic Smoking Device K ₁ Film Thermocouple K ₂ Wire Thermocouple

Claims (11)

A non-combustion heated flavor inhalation device comprising a tobacco rod, a cooling segment, and a mouthpiece,
The flavor inhaler, wherein the mouthpiece is provided with a filter and a center hole filter in this order toward the mouthpiece end. The flavor inhaler according to claim 1, wherein the hole diameter of said center hole filter is 20 to 40% of the diameter of said center hole filter. 3. The flavor inhaler according to claim 1, wherein said center hole filter has a hardness of 90% or more as measured by the following method.
Measurement method 1) A center hole filter is placed on a substrate so that its longitudinal direction is horizontal, and its height Ds is measured.
2) Using a pressurizing jig, pressurize 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 x 100 The flavor inhaler according to claim 3, wherein said hardness is 95% or more. The flavor inhaler according to any one of claims 1 to 4, wherein the center hole filter has a thickness of 1 to 3 mm. The flavor inhaler according to any one of claims 1 to 5, wherein the center hole filter has a hole cross-sectional area of 0.7 to 20 mm ² . The flavor inhaler according to any one of claims 1 to 6, wherein the center hole filter has a single fineness of 5 to 12 (denier/filament). The flavor inhaler according to claim 7, wherein the center hole filter has a single fineness of 5 to 8 (denier/filament). The flavor inhaler according to any one of claims 1 to 8, wherein the center hole filter has a total fineness of 30,000 to 60,000 (denier/total). The flavor inhaler according to claim 9, wherein the center hole filter has a total fineness of 35,000 to 45,000 (denier/total). The flavor inhaler according to any one of claims 1 to 10, having a diameter of 6 to 8 mm.