JP7259146B2 - Filter segments, non-combustion heating smoking articles and non-combustion heating smoking systems - Google Patents

Description

The present invention relates to filter segments, non-combustion heating smoking articles and non-combustion heating smoking systems.

Ordinary combustible smoking articles (tobacco) that use combustion to smoke are made by adding tobacco fillers, such as flavoring agents, moisturizing agents, and moderate moisture, to dried tobacco leaves that are chopped to a width of about 1 mm. The tobacco-containing segment is cylindrically wrapped with a wrapper made of cellulose acetate, and the mouthpiece segment is cylindrically wrapped with a paper wrapper made of fiber or pleated paper made of cellulose acetate or the like. The tobacco-containing segment and the mouthpiece segment are connected by lining paper. The user lights the end of the tobacco-containing segment with a lighter or the like, and smokes by inhaling from the end of the mouthpiece segment. The tobacco-containing segment tips burn at temperatures above 800°C.

As an alternative to such conventional combustion smoking articles, non-combustion heating smoking articles and non-combustion heating smoking systems that utilize heating instead of combustion have been developed (eg, US Pat. The heating temperature is lower than the combustion temperature in the combustion smoking article, for example below 400°C. In non-combustion heated smoking articles, the tobacco filler of the tobacco-containing segment comprises an aerosol-generating substrate such as glycerin, propylene glycol (PG), triethylcitrate (TEC), triacetin, and the like. The aerosol-generating substrate is vaporized by heating, moved by suction to a cooling segment within the mouthpiece segment, and cooled to further ensure aerosol generation. When sucking from the filter segment provided at the end of the mouthpiece segment on the side of the mouthpiece, the aerosol is sucked together, so that the satisfaction of the user can be ensured.

A non-combustion heating smoking system generally comprises a cylindrical non-combustion heating smoking article having a shape similar to a conventional combustion smoking article, and a heating device including a battery, controller, heater, or the like. The heater may be a heater by electrical resistance or a heater by IH. Heating methods using electrical resistance include a method in which a heater is used to heat the non-combustion heating smoking article from the outside, and a needle-shaped or blade-shaped heater is placed from the tip of the non-combustion heating smoking article into the tobacco-containing segment containing the tobacco filler. The method of inserting and heating, etc. are mentioned.

Patent No. 5292410 Patent No. 5771338 Japanese Patent Publication No. 2013-507906 WO2017/198838 Patent No. 5877618 Japanese Patent Publication No. 2016-506729

As described above, the aerosol-generating substrate that has been vaporized by heating (hereinafter also referred to as the aerosol vaporization component) is primarily cooled in the cooling segment to cause condensation of the vapor into particles, resulting in an aerosol. Here, the aerosol vaporization component is required to be sufficiently cooled so that the user can inhale it from the filter segment provided at the end on the mouthpiece side. As a cooling segment for a non-combustible heating smoking article, for example, Patent Document 4 discloses that perforations are provided on the outer periphery of a hollow cylindrical portion, and outside air is introduced through the perforations at the time of inhalation, and the aerosol vaporized component and the outside air are brought into contact with each other for cooling. A configuration is disclosed.

However, when the aerosol vaporization component is cooled only by outside air introduced through the perforations provided in the cooling segment, a large amount of outside air needs to be introduced in order to sufficiently perform the cooling, resulting in poor flavor and taste. undermined. Therefore, development of a method capable of sufficiently cooling the vaporized aerosol components without impairing the flavor and taste is desired.

An object of the present invention is to provide a filter segment capable of sufficiently cooling vaporized aerosol components without impairing flavor and taste, a non-combustion heating smoking article and a non-combustion heating smoking system comprising the filter segment.

The filter segment according to the present invention is a filter segment for non-combustion heated smoking articles having an airflow resistance per segment of 15-60 mmH ₂ O/seg.

A non-combustion heat smoking article according to the present invention comprises a tobacco-containing segment, a cylindrical cooling segment having perforations on its periphery, and said filter segment.

A non-combustion heating smoking system according to the present invention comprises the non-combustion heating smoking article and a heating device for heating the tobacco-containing segment.

According to the present invention, it is possible to provide a filter segment capable of sufficiently cooling vaporized aerosol components without impairing the flavor and taste, a non-combustion heating smoking article and a non-combustion heating smoking system comprising the filter segment.

FIG. 4 is a cross-sectional view showing an example of the configuration of a filter segment according to the present invention; 1 is a cross-sectional view showing an example of a non-combustion heated smoking article according to the present invention; FIG. An example of a non-combustion heated smoking article according to the present invention, showing (a) a state before the non-combustion heated smoking article is inserted into the heating device, and (b) the non-combusted heated smoking article is inserted into the heating device and heated. It is a schematic diagram which shows a state.

[Filter segment]
Filter segments according to the present invention are filter segments for non-combustion heated smoking articles. Here, the ventilation resistance per segment of the filter segment is 15-60 mmH ₂ O/seg.

In the present invention, by setting the ventilation resistance per segment within the range of 15 to 60 mmH ₂ O/seg, the aerosol vaporization component can be sufficiently cooled without impairing the flavor and taste. Specifically, when the ventilation resistance per segment is 15 mmH ₂ O/seg or more, aerosols and water vapor are sufficiently trapped in the filter segments, and heat is also trapped. Also, trapped aerosols and water vapor exhibit a cooling effect. They therefore provide a cooling effect in the filter segments. In addition, since the ventilation resistance per segment is 60 mmH ₂ O/seg or less, unnecessary trapping of the aerosol is suppressed, and the tobacco component and the flavoring component contained in the aerosol are sufficiently supplied to the user. Therefore, the aroma and taste are not spoiled. Furthermore, even when cooling is performed by the outside air introduced from the perforations provided in the cooling segment, the cooling effect is obtained in the filter segment, so the amount of outside air introduced from the perforations can be reduced, and a sufficient flavor and taste can be obtained. The details of the present invention will be described below.

An example of the configuration of a filter segment according to the present invention is shown in FIG. The filter segment 1 shown in FIG. 1 consists of a first packing layer 2 and a first inner plug wrapper 3 covering the first packing layer 2 . Since the filter segment 1 has a first packing layer 2 up to the end, the end has an appearance similar to that of a normal combustion smoking article. The filler in the first filler layer 2 may be, for example, cellulose acetate fiber bundles containing a plasticizer (triacetin), paper made mainly of pulp, or the like. One of these fillers may be used, or two of them may be used in combination.

In the present invention, the ventilation resistance per segment of the filter segment is 15 to 60 mmH ₂ O/seg, preferably 20 to 40 mmH ₂ O/seg, more preferably 25 to 30 mmH ₂ O/seg. For example, if the length of the filter segment in the axial direction (horizontal direction in FIG. 1) is 7 mm, the ventilation resistance per segment is 15-60 mmH ₂ O/7 mm. The airflow resistance can be appropriately changed depending on the amount, material, etc., of the filler with which the filter segment is filled. For example, when the filler is cellulose acetate fiber, the ventilation resistance can be increased by increasing the amount of cellulose acetate fiber with which the filter segment is filled. When the filler is cellulose acetate fiber, the packing density of the cellulose acetate fiber can be 0.13-0.18 g/cm ³ . The airflow resistance is a value measured by an airflow resistance measuring instrument (trade name: SODIMAX, manufactured by SODIM).

The circumference of the filter segment is not particularly limited, but is preferably 16 to 25 mm, more preferably 20 to 24 mm, even more preferably 21 to 23 mm. The length of the filter segment in the axial direction (horizontal direction in FIG. 1) can be selected from 4 to 10 mm, and is selected so that its ventilation resistance is from 15 to 60 mmH ₂ O/seg. The axial length of the filter segment is preferably 5-9 mm, more preferably 6-8 mm. The cross-sectional shape of the filter segment is not particularly limited, and may be, for example, circular, elliptical, polygonal, and the like. In addition, the filter segment may be directly added with destructible capsules containing fragrance, fragrance beads, or fragrance.

[Non-combustion heated smoking article]
A non-combustion heated smoking article according to the present invention comprises a tobacco-containing segment, a tubular cooling segment having perforations on its circumference, and a filter segment according to the present invention. Since the non-combustion heating smoking article includes the filter segment according to the present invention, the aerosol vaporization component can be sufficiently cooled without impairing the flavor and taste. The non-combustion heating smoking article according to the present invention may have other segments in addition to the tobacco-containing segment, cooling segment and filter segment.

An example of a non-combustion heating smoking article according to the present invention is shown in FIG. The non-combustion heated smoking article 30 shown in FIG. 2 comprises a tobacco-containing segment 10 and a mouthpiece segment 11 . The mouthpiece segment 11 comprises a cooling segment 12, a center hole segment 13 and a filter segment 1 according to the invention arranged at the end on the mouthpiece side. During smoking, the tobacco-containing segment 10 is heated and suction is performed from the end of the filter segment 1 . The positions of the cooling segment 12 and the center hole segment 13 may be exchanged, and the positions of the center hole segment 13 and the filter segment 1 may be exchanged. Also, the mouthpiece segment 11 may not have the center hole segment 13 .

The tobacco-containing segment 10 has a tobacco filling 14 containing tobacco and an aerosol-generating substrate, and a tubular wrapper 15 covering the tobacco filling 14 . Tobacco fill 14 may further include a volatile flavor ingredient, water. There are no particular restrictions on the size of the tobacco used as the filling or the preparation method thereof. For example, dried tobacco leaves chopped into widths of 0.8 to 1.2 mm may be used. When it is chopped to the above width, the length of the chop is about 5 to 20 mm. Alternatively, dried tobacco leaves may be pulverized to have an average particle diameter of about 20 to 200 μm, homogenized, processed into sheets, and cut into pieces having a width of 0.8 to 1.2 mm. . When it is chopped to the above width, the length of the chop is about 5 to 20 mm. Furthermore, the above-mentioned sheet-processed material may be gathered without being chopped and used as the filling material. Alternatively, a plurality of cylindrically shaped sheets may be arranged concentrically. Whether the dried tobacco leaves are chopped and used, or the tobacco is pulverized and used as a homogenized sheet, various types of tobacco can be used in the tobacco filling. Yellow variety, burley variety, orient variety, native variety, and other Nicotiana tabacum and Nicotiana rustica varieties can be blended as appropriate to obtain the desired taste. Details of the tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Research Center, March 31, 2009".

There are several conventional methods for pulverizing tobacco and processing it into homogenized sheets. One is a paper-making sheet made using a papermaking process, and the other is a homogenization by mixing an appropriate solvent such as water, and then thinly casting the homogenized product on a metal plate or metal plate belt, Cast sheets are produced by drying, and three are rolled sheets, which are produced by mixing a suitable solvent such as water and homogenizing them and extruding them into a sheet. The types of the homogenizing sheet are disclosed in detail in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009".

The packing density of the tobacco filling 14 is not particularly limited, but is usually 250 mg/cm ³ or more, preferably 320 mg/cm ³ from the viewpoint of ensuring the performance of the non-combustion heating smoking article 30 and providing good smoking taste. and is usually 520 mg/cm ³ or less, preferably 420 mg/cm ³ or less. Specifically, the content range of the tobacco filler 14 in the tobacco-containing segment 10 is 200 to 450 mg per tobacco-containing segment 10 in the case of the tobacco-containing segment 10 having a circumference of 22 mm and a length of 20 mm. , 280-400 mg.

The aerosol-generating substrate is a material that can generate an aerosol by heating, and examples thereof include, but are not limited to, glycerin, propylene glycol (PG), triethyl citrate (TEC), triacetin, 1,3-butanediol, and the like. These may be used alone or in combination of two or more.

The types of volatile flavoring ingredients are not particularly limited, and from the viewpoint of imparting good taste, acetoanisole, 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, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, Cardamom oil, carob absolute, beta-carotene, carrot juice, L-carvone, beta-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, cumin aldehyde, 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, olein ethyl acetate, 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 extra hexalactone, γ-heptalactone, γ-hexalactone, hexanoic acid, cis-3-hexen-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-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, in Morter absolute, β-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpene-less oil, licorice extract, linalool, linalyl acetate, Lovage root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, para-methoxybenzaldehyde, methyl-2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, honeysuckle, 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, phenylacetic acid, piperonal, plum extract, propenylguaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid. , raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, 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-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, extracts of tobacco plants (tobacco leaves, tobacco stems, tobacco flowers, tobacco roots and tobacco seeds), with menthol being particularly preferred. Moreover, these volatile fragrance components may be used alone or in combination of two or more.

The content of the aerosol-generating base material in the tobacco filling 14 is not particularly limited, and is usually 5 to 50% by mass, preferably 10 to 50% by mass, from the viewpoint of sufficiently generating an aerosol and imparting a good smoking taste. 20% by mass. When the tobacco filling 14 contains a volatile flavoring component, the content of the volatile flavoring component in the tobacco filling is not particularly limited, and is usually 10000 ppm relative to the amount of the tobacco filling substance from the viewpoint of imparting a good smoking taste. above, preferably 20000 ppm or more, more preferably 25000 ppm or more, and usually 50000 ppm or less, preferably 40000 ppm or less, more preferably 33000 ppm or less.

The method of filling the tobacco filling 14 into the wrapper 15 is not particularly limited, but for example, the tobacco filling 14 may be wrapped with the wrapper 15 or the tubular wrapper 15 may be filled with the tobacco filling 14 . When the shape of the tobacco has a longitudinal direction such as a rectangular shape, the tobacco may be packed in the wrapper 15 such that the longitudinal direction is in an unspecified direction, and may be in the axial direction of the tobacco-containing segment 10 or in the longitudinal direction. They may be aligned and filled in a direction perpendicular to the axial direction. By heating the tobacco-containing segment 10 , the tobacco components, aerosol-generating substrate and water contained in the tobacco filling 14 are vaporized and transferred to the mouthpiece segment 11 by suction.

The cooling segment 12 consists of a tubular member 16 . The cylindrical member 16 can be, for example, a paper tube formed by processing cardboard into a cylindrical shape. The tubular member 16 and the mouthpiece lining paper 21, which will be described later, are provided with perforations 17 penetrating both. Due to the presence of the perforations 17, outside air is introduced into the cooling segment 12 during suction. As a result, the vaporized aerosol component generated by heating the tobacco-containing segment 10 comes into contact with the outside air, and its temperature decreases, liquefying to form an aerosol. The diameter (spanning length) of the perforations 17 is not particularly limited, but can be, for example, 0.5 to 1.5 mm. The number of perforations 17 is not particularly limited, and may be one or two or more. For example, multiple perforations 17 may be provided on the circumference of the cooling segment 12 . The amount of outside air introduced through the perforations 17 is preferably 85% by volume or less, more preferably 80% by volume or less, relative to the total volume of the gas inhaled by the user. When the ratio of the amount of outside air is 85% by volume or less, it is possible to sufficiently suppress reduction in flavor and taste due to dilution by outside air. From the viewpoint of cooling performance, the lower limit of the range of the ratio of the amount of outside air is preferably 55% by volume or more, more preferably 60% by volume or more.

A center hole segment is composed of a filling layer having one or more hollow portions and an inner plug wrapper covering the filling layer. For example, the center hole segment 13 is composed of a second filling layer 18 having a hollow portion and a second inner plug wrapper 19 covering the second filling layer 18 . The center hole segment 13 has the function of increasing the strength of the mouthpiece segment 11 . The second filling layer 18 has an inner diameter of φ5.0 to φ1.0 mm, which is filled with, for example, cellulose acetate fibers at a high density and hardened by adding 6 to 20% by mass of a plasticizer containing triacetin to the mass of cellulose acetate. can be a rod of Since the second packed layer 18 has a high packing density of fibers, air and aerosol flow only in the hollow portion and hardly flow in the second packed layer 18 during suction. Since the second filling layer 18 inside the center hole segment 13 is a fiber filling layer, the feeling of touch from the outside during use hardly causes the user to feel uncomfortable. Note that the center hole segment 13 may not have the second inner plug wrapper 19 and may retain its shape by thermoforming.

The center hole segment 13 and the filter segment 1 are connected by an outer plug wrapper 20. - 特許庁The outer plug wrapper 20 can be, for example, a cylinder of paper. The tobacco-containing segment 10 , cooling segment 12 , connected center hole segment 13 and filter segment 1 are connected by mouthpiece lining paper 21 . These connections can be made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper 21, inserting the three segments, and winding them. In addition, these segments may be divided into multiple times and connected with multiple lining papers.

The length of the non-combustion heating smoking article according to the present invention in the axial direction, that is, the horizontal direction in FIG. is more preferable. In addition, the circumference of the non-combustion heating smoking article is preferably 16 mm to 25 mm, more preferably 20 mm to 24 mm, even more preferably 21 mm to 23 mm. For example, the tobacco-containing segment 10 has a length of 20 mm, the cooling segment 12 has a length of 20 mm, the center hole segment 13 has a length of 8 mm, and the filter segment 1 has a length of 7 mm. The length of the filter segment 1 can be selected within the range of 4-10 mm. Also, the ventilation resistance of the filter segment 1 at that time is selected to be 15 to 60 mmH ₂ O/seg per segment. These individual segment lengths can be changed as appropriate according to manufacturability, required quality, and the like. Furthermore, even if only the filter segment is arranged downstream of the cooling segment without using the center hole segment, it is also possible to function as a non-combustion heated smoking article.

[Non-combustion heated smoking system]
A non-combustion heat smoking system according to the present invention comprises a non-combustion heat smoking article according to the present invention and a heating device for heating a tobacco-containing segment. Since the non-combustion heating smoking system includes the non-combustion heating smoking article according to the present invention, the aerosol vaporization component can be sufficiently cooled without impairing the flavor and taste. The non-combustion heating smoking system according to the present invention is not particularly limited as long as it includes the non-combustion heating smoking article according to the present invention and the heating device, and may have other configurations.

An example of a non-combustion heated smoking system according to the present invention is shown in FIG. The non-combustion heating smoking system shown in FIG. 3 comprises a non-combustion heating smoking article 30 according to the present invention and a heating device 31 for externally heating tobacco-containing segments of the non-combustion heating smoking article 30 . 3(a) shows the state before the non-combustion heating smoking article 30 is inserted into the heating device 31, and FIG. 3(b) shows the state where the non-combustion heating smoking article 30 is inserted into the heating device 31 and heated. . A heating device 31 shown in FIG. 3 includes a body 32 , a heater 33 , a metal tube 34 , a battery unit 35 and a control unit 36 . The body 32 has a cylindrical recess 37 , and a heater 33 and a metal tube 34 are positioned on the inner side surface of the recess 37 at positions corresponding to the tobacco-containing segments of the non-combustion heated smoking article 30 inserted into the recess 37 . are placed. The heater 33 can be a heater based on electric resistance, and electric power is supplied from the battery unit 35 according to an instruction from the control unit 36 that performs temperature control, and the heater 33 is heated. Heat emitted from the heater 33 is conducted to the tobacco-containing segment of the non-combustion heated smoking article 30 through the high thermal conductivity metal tube 34 . In FIG. 3(b), there is a gap between the outer circumference of the non-combustion heating smoking article 30 and the inner circumference of the metal tube 34 because it is schematically shown, but in reality, the gap effectively transfers heat. For this purpose, it is desirable that there is no gap between the outer circumference of the non-combustion heated smoking article 30 and the inner circumference of the metal tube 34 . Although the heating device 31 heats the tobacco-containing segment of the non-combustion heating smoking article 30 from the outside, it may heat the tobacco-containing segment from the inside.

The heating temperature of 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 indicates the temperature of the heater of the heating device.

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

(Cooling performance evaluation)
The filter segment of the non-combustion heating smoking article with closed perforations in the cooling segment was connected to the smoking machine via tubing. Also, a thermocouple was placed immediately after the filter segment. A tobacco-containing segment of the non-combustion heated smoking article was heated by a heater and drawn by the smoking machine. Heating by the heater was held at 230°C for 50 seconds, held at 200°C for 130 seconds, and then held at 170°C. Suction is started 40 seconds after the start of heating, and is 55 ml/2 seconds per puff based on the HCI method (Health Canada Intense, Canadian Forced Smoking Condition Law) (1 puff is 30 seconds apart, i.e., sucked for 2 seconds). wait 28 seconds) for a total of 5 puffs. The maximum temperature detected by the thermocouple in the first puff was measured to evaluate the cooling performance. Table 1 shows the results. Since the aerosol temperature of the first puff is the highest, there is no practical problem if the temperature of the first puff is sensually suitable for smoking. The HCI method is the method provided by Health Canada and is described in Haelth Canada-Tobacco Reporting Regulation SOR/2000-273. The reason why the evaluation test was conducted with the perforations closed was to eliminate the cooling by the air introduced from the perforations and evaluate the cooling capacity of the filter segment alone. This is because it is specified as one of the conditions.

(sensory evaluation)
Four well-trained panelists smoked a non-combustion heating smoking article having filter segments with perforations provided in the cooling segment at the same smoking interval as the cooling performance evaluation, and sensory evaluation (fragrance smoking taste, sensory temperature evaluation) was performed. Sensory evaluation was performed according to the following criteria.
A: Suitable for smoking both in terms of flavor and taste and sensible temperature.
B: Suitable for smoking at sensible temperature, but slightly weak in flavor and taste.
C: The flavor and taste are suitable for smoking, but the sensible temperature is somewhat unsuitable.

(Example 1)
The following tobacco-containing segment, cooling segment, center hole segment and filter segment were prepared.

<Segment containing tobacco>
A tobacco sheet produced by the papermaking process was cut into a width of 0.8 mm, and 16% by mass of glycerin was added as an aerosol-generating base material to obtain a tobacco filler. The longitudinal length when cut to a width of 0.8 mm was about 5 mm to 20 mm. Also, the water content of the tobacco filler was about 12% by mass. The tobacco filling was wrapped with a wrapper containing wood pulp as a main component and having a basis weight of 35 g/m ² and a thickness of 50 μm to produce a tobacco-containing segment. A normal cigarette making machine was used as a winding device. The tobacco-containing segment was cylindrical with a circumference of 22 mm and an axial length of 20 mm. The tobacco filling wrapped with the wrapper was filled in random directions within the rod. The mass of tobacco filler in the tobacco-containing segment was 280 mg/seg.

<Cooling segment>
A cooling segment, which is a paper tube, was manufactured using cardboard with a basis weight of 100 g/m ² and a thickness of 125 μm using a paper tube manufacturing apparatus manufactured by Hauni. The cooling segment was cylindrical with a circumference of about 21.75 mm and an axial length of 20 mm. In addition, since the paper tube manufacturing apparatus has a mechanism in which two sheets of cardboard are pasted together to form a paper tube, the thickness of the obtained cooling segment was about 250 μm.

<Center Hall Segment>
Using Hauni's center hole segment manufacturing equipment, cellulose acetate fiber bundles are used as a filler, and triacetin is used as a plasticizer to bond the cellulose acetate fibers together to ensure segment hardness, producing hollow center hole segments. bottom. The cellulose acetate fiber bundle had a single fineness of 8.0 denier, a total fineness of 40000 denier, and a fiber cross-sectional shape of Y cross-section. The cellulose acetate fiber bundle was sprayed with 15% by weight of triacetin based on the weight of the cellulose acetate fiber bundle. The center hole segment was cylindrical with a circumference of about 21.5 mm and an axial length of 8 mm. In addition, one hollow portion with an inner diameter of about φ5 mm was formed in the central portion of the cylinder. A center hole segment was produced as a so-called "non-wrap rod" without using a wrapper for winding the cellulose acetate fiber bundle. The packing density of the hollow cellulose acetate fiber bundle was 0.280 g/cm ³ .

<Filter segment>
A solid filter segment was manufactured using a Hauni filter manufacturing apparatus using a cellulose acetate fiber bundle as a filler and triacetin as a plasticizer for bonding cellulose acetate fibers together to ensure segment hardness. The triacetin-sprayed cellulose acetate fiber bundle was wrapped with an inner plug wrapper having a basis weight of 27 g/m ² by a filter manufacturing apparatus. The cellulose acetate fiber bundle had a single fineness of 5 denier, a total fineness of 35000 denier, and a fiber cross-sectional shape of Y cross-section. The cellulose acetate fiber bundle was sprayed with 6% by weight of triacetin based on the weight of the cellulose acetate fiber bundle. The filter segment was cylindrical with a circumference of about 21.5 mm and an axial length of 7 mm. The packing density of the cellulose acetate fiber bundle was 0.135 g/cm ³ .

The center hole segment and the filter segment were connected with an outer plug wrapper. The tobacco-containing segment, the cooling segment, the connected center hole segment and the filter segment were connected by a piece of mouthpiece lining paper in a combiner. After connection, perforations were formed through the mouthpiece lining paper and the cooling segment (paper tube) by a laser perforator installed in the combiner. The perforations had a shape of about 250 μm in length and about 200 μm in width, and 17 perforations were formed in a row on the circumference at approximately equal intervals. The ratio of the amount of outside air introduced through the perforations to the total volume of gas inhaled by the user was about 75%. This resulted in an unburned heated smoking article. The ventilation resistance per segment of the filter segment was 21.8 mmH ₂ O/seg. The cooling performance evaluation and the sensory evaluation were performed using the obtained non-combustion heating smoking article. Table 1 shows the results.

(Example 2)
A non-combustion heated smoking article was made as in Example 1, except that filter segments with increased loading of cellulose acetate fibers were used. The ventilation resistance per segment of the filter segment was 25.0 mmH ₂ O/seg. The cooling performance evaluation and the sensory evaluation were performed using the obtained non-combustion heating smoking article. Table 1 shows the results.

(Example 3)
A non-combustion heated smoking article was made as in Example 1, except that filter segments with increased loading of cellulose acetate fibers were used. The ventilation resistance per segment of the filter segment was 30.8 mmH ₂ O/seg. The cooling performance evaluation and the sensory evaluation were performed using the obtained non-combustion heating smoking article. Table 1 shows the results.

(Comparative example 1)
A non-combustion heating smoking article was produced in the same manner as in Example 1, except that a cylindrical segment not filled with cellulose acetate fibers was used as the filter segment. The ventilation resistance per segment of the filter segment was 0.0 mmH ₂ O/seg. The cooling performance evaluation was performed using the obtained non-combustion heating smoking article. Table 1 shows the results.

(Comparative example 2)
A non-combustion heated smoking article was made as in Example 1, except that the length of the filter segment was halved. The ventilation resistance per segment of the filter segment was 10.9 mmH ₂ O/seg. The cooling performance evaluation was performed using the obtained non-combustion heating smoking article. Table 1 shows the results.

(Comparative Example 3)
A non-combustion heated smoking article was made as in Example 3, except that the length of the filter segment was doubled. The ventilation resistance per segment of the filter segment was 61.6 mmH ₂ O/seg. The cooling performance evaluation was performed using the obtained non-combustion heating smoking article. Table 1 shows the results.

As shown in Table 1, in Examples 1 to 3, the maximum temperature of the first puff was sufficiently low, and it was confirmed that the aerosol vaporization component was sufficiently cooled. Moreover, as a result of sensory evaluation of Examples 1 to 3, it was confirmed that Example 2 is suitable for smoking both in terms of flavor and sensible temperature, and is the most suitable. On the other hand, it was confirmed that the flavor and taste of Example 3 was slightly weaker than that of Example 2, and that the sensible temperature of Example 1 was slightly higher than that of Example 2, but there was no practical problem. In Comparative Example 3, the maximum temperature of the first puff in the cooling performance evaluation is sufficiently low, but since the ventilation resistance per segment is twice that of Example 3, when sensory evaluation is performed, the flavor and taste of Example 3 expected to be weaker than
The present invention includes the following embodiments.
[1] Filter segments for non-combustion heated smoking articles having an airflow resistance of 15 to 60 mmH ₂ O/seg per segment.
[2] The filter segment according to [1], wherein the ventilation resistance per segment is 20 to 40 mmH ₂ O/seg.
[3] The filter segment according to [1] or [2], wherein the ventilation resistance per segment is 25 to 30 mmH ₂ O/seg.
[4] The filter segment according to any one of [1] to [3], which has an axial length of 4 to 10 mm.
[5] The filter segment according to [1], wherein the ventilation resistance per segment is 15 to 60 mmH ₂ O/7 mm.
[6] a tobacco-containing segment;
a cylindrical cooling segment having perforations on its circumference;
a filter segment according to any one of [1] to [5];
A non-combustion heated smoking article comprising:
[7] The non-combustion heating smoking article according to [6], wherein a plurality of perforations are provided.
[8] The non-combustion heated smoking article of [6] or [7], wherein the tobacco-containing segment comprises tobacco and an aerosol-generating substrate.
[9] The non-combustion heating smoking article according to any one of [6] to [8];
a heating device for heating the tobacco-containing segment;
A non-combustion heating smoking system comprising:
[10] The non-combustion heating smoking system according to [9], wherein the heating temperature of the heating device is 150 to 400°C.

1 Filter Segment 2 First Filling Layer 3 First Inner Plug Wrapper 10 Tobacco-Containing Segment 11 Mouthpiece Segment 12 Cooling Segment 13 Center Hole Segment 14 Tobacco Filling 15 Wrapper 16 Tubular Member 17 Perforations 18 Second Filling Layer 19 Second Inner Plug Wrapper 20 Outer Plug Wrapper 21 Mouthpiece Lining Paper 30 Non-Combustion Heated Smoking Article 31 Heating Device 32 Body 33 Heater 34 Metal Tube 35 Battery Unit 36 Control Unit 37 Recess

Claims (13)

a tobacco-containing segment;
a cylindrical cooling segment having perforations on its circumference;
filter segments for non-combustion heated smoking articles having an air flow resistance per segment of 15-60 mmH ₂ O/seg;
A non-combustion heated smoking article comprising:
The amount of outside air introduced from the perforations is 85% by volume or less with respect to the volume of the entire gas inhaled by the user,
A non-combustion heating smoking article , wherein the filter segment is filled with cellulose acetate fibers, and the packing density of the cellulose acetate fibers is 0.13 to 0.18 g/cm 3 ^. 2. The non-combustion heating smoking article according to claim 1, wherein said filter segment has a per-segment ventilation resistance of 20-40 mmH ₂ O/seg. 3. The non-combustion heating smoking article according to claim 1 or 2, wherein the airflow resistance per segment of the filter segment is 25-30 mmH ₂ O/seg. A non-combustion heating smoking article according to any one of claims 1 to 3, wherein the filter segment has an axial length of 4 to 10 mm. 2. The non-combustion heated smoking article according to claim 1, wherein said filter segment has a per-segment ventilation resistance of 15-60 mmH ₂ O/7 mm. The non-combustion heating smoking article according to any one of claims 1 to 5, wherein a plurality of said perforations are provided. A non-combustion heated smoking article according to any preceding claim, wherein the tobacco-containing segment comprises a tobacco filler comprising tobacco and an aerosol-generating substrate. 8. The non-combustion heating smoking article according to claim 7, wherein the content of said aerosol-generating substrate in said tobacco charge is 10-20% by weight. The non-combustion heating smoking article according to claim 7 or 8, wherein the tobacco filling has a packing density of 250 mg/cm ³ or more and 420 mg/cm ³ or less. The non-combustion heated smoking article according to any one of claims 7 to 9, wherein the content of said tobacco filling in said tobacco-containing segment ranges from 200 to 450 mg. A non-combustion heated smoking article according to any one of claims 1 to 10, wherein the perforations have a diameter of 0.5 to 1.5 mm. A non-combustion heating smoking article according to any one of claims 1 to 11;
a heating device for heating the tobacco-containing segment;
A non-combustion heating smoking system comprising: The non-combustion heating smoking system according to claim 12, wherein the heating temperature by said heating device is 150-400°C.

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