KR20210063422A - Cooling segment and method of making the same, non-combusted heated smoking article, and non-combusted heated smoking system - Google Patents

Abstract

Provided is a cooling segment in which the cooling performance of the aerosol vaporization component is high and the filterability of the aerosol is low. A cooling segment for a non-combustible heated smoking article comprising: a paper; and a polymer coated paper comprising a polymer layer containing a polymer formed thereon.

Description

Cooling segment and method of making the same, non-combusted heated smoking article, and non-combusted heated smoking system

FIELD OF THE INVENTION The present invention relates to cooling segments and methods of making the same, unburned heated smoking articles, and unburned heated smoking systems.

A normal combustion smoking article (tobacco) in which smoking is performed using combustion is a tobacco filling in which a flavor, a humectant, an appropriate moisture, etc. have been added to dried tobacco leaves cut into pieces of about 1 mm in width, and the like is made of paper. It has a tobacco-containing segment circumferentially wound by a wrapper, and a mouthpiece segment in which a fiber or corrugated paper made of cellulose acetate or the like is circumferentially wound by a paper wrapper. The tobacco-containing segment and the mouthpiece segment are connected by a lining paper. Smoking is accomplished by a user ignites with a lighter or the like at the end of the cigarette-containing segment and sucks from the end of the mouthpiece segment. The tobacco-containing segment tip is burned at a temperature in excess of 800°C.

As an alternative to such conventional combustion smoking articles, non-combustion heated smoking articles and non-combustion heated smoking systems using heating instead of combustion have been developed (for example, Patent Documents 1 to 6). The heating temperature is lower than the combustion temperature in the combustion smoking article, and is heated, for example, at 400°C or less. In an unburnt heated smoking article, the tobacco charge 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 and moved by suction to a cooling segment in the mouthpiece segment, where it is cooled to more reliably generate aerosol. When inhaling, since the aerosol is also sucked together, the user's satisfaction can be ensured.

BACKGROUND OF THE INVENTION [0002] Unburnt heated smoking systems generally include a cylindrical unburned heated smoking article having a shape similar to a conventional burnt smoking article, and a heating device comprising a cell, a controller, a heater, and the like. As for the heater, the heater by the said resistance and the heater by IH are mentioned. As the heating method of the heater by resistance, a method of heating with a heater from the outside of an unburned heated smoking article, a needle-shaped or blade-shaped heater is inserted from the tip of the unburned heated smoking article into a tobacco-containing segment comprising a tobacco filling, The method of heating, etc. are mentioned.

Patent Document 1: Japanese Patent No. 5292410 Patent Document 2: Japanese Patent No. 5771338 Patent Document 3: Japanese Patent Publication No. 2013-507906 Patent Document 4: International Publication No. 2017/198838 Patent Document 5: Japanese Patent No. 5877618 Patent Document 6: Japanese Patent Publication No. 2016-506729

As described above, the aerosol-generating substrate vaporized by heating (hereinafter also referred to as an aerosol-vaporizing component) is mainly cooled in the cooling segment to cause condensation from vapor to particles to form an aerosol. Here, if a filter segment filled with a large amount of fiber or paper is used as a cooling segment as it is in order to guarantee the filtration function of the smoke component and the hardness of the water, as in a normal combustion smoking article, cooling of the aerosol vaporization component is sufficiently achieved, Since the packing density is high, the aerosol is filtered out, and the satisfaction of the user cannot be sufficiently ensured. Moreover, when a volatile fragrance component is contained in a tobacco containing segment, since a heating temperature is low in a non-combustion heated smoking article, there are some things with little volatilization amount of a volatile fragrance component. Similarly, when the packing density of fibers or paper is high, the volatile perfume component is also filtered out, and the supply amount of the volatile perfume component becomes insufficient.

As a cooling segment for non-combustion heated smoking articles, for example, Patent Document 2 discloses a configuration including a low-resistance support element in which a sheet made of a polymer such as a polylactic acid sheet is a gather or the like. In addition, Patent Document 4 discloses a configuration in which perforations are formed on the outer periphery of the circumference of the cavity, external air is introduced from the perforations at the time of suction, and the aerosol vaporization component and external air are brought into contact with each other for cooling. However, it is desired to develop a cooling segment for non-combustion heated smoking articles that can make the high cooling properties of the aerosol vaporization component and the low filtration properties of the aerosol more compatible.

An object of the present invention is to provide a cooling segment having a high cooling performance of an aerosol vaporizing component and low filterability of an aerosol, an unburned heated smoking article provided with the cooling segment, and an unburned heated smoking system.

The cooling segment according to the present invention is a cooling segment for non-combustion heated smoking articles comprising paper and a polymer coated paper comprising a polymer layer containing a polymer formed on the paper.

The non-burning heated smoking article according to the present invention includes a tobacco-containing segment and a cooling segment according to the present invention.

A non-burning heated smoking system according to the present invention includes the non-burning heated smoking article according to the present invention, and a heating device for heating a tobacco-containing segment.

The manufacturing method of the cooling segment which concerns on this invention is equipped with the process of apply|coating the coating liquid containing the said polymer on the said paper, and manufacturing the said polymer coating paper.

Advantageous Effects of Invention According to the present invention, it is possible to provide a cooling segment having a high cooling performance of an aerosol vaporizing component and low filterability of an aerosol, an unburned heated smoking article provided with the cooling segment, and an unburned heated smoking system.

BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which shows an example of the polymer coated paper which concerns on this invention.
Fig. 2 is an SEM image of a cross section of an example of a polymer layer having a porous structure according to the present invention.
3 : is (a) perspective view and (b) sectional drawing which show 1 of 1st Embodiment of the cooling segment which concerns on this invention.
It is (a) perspective view and (b) sectional drawing which show 2 of 1st Embodiment of the cooling segment which concerns on this invention.
5 : is (a) perspective view and (b) sectional drawing which shows 2nd Embodiment of the cooling segment which concerns on this invention.
6 : is (a) perspective view and (b) sectional drawing which shows 3rd Embodiment of the cooling segment which concerns on this invention.
Fig. 7 is a cross-sectional view showing an example of the first embodiment of the non-burning heated smoking article according to the present invention.
Fig. 8 is an example of a non-burning heated smoking system according to the present invention, showing (a) a state before inserting an unburned heated smoking article into a heating device, (b) inserting an unburned heated smoking article into a heating device and heating It is a schematic diagram showing the state of
9 is a graph showing the amount of glycerin for each puff in Example 1 and Comparative Example 1. FIG.
10 is a graph showing the amount of menthol for each puff in Example 1 and Comparative Example 1. FIG.
11 is a cross-sectional view showing an example of the second embodiment of the non-burning heated smoking article according to the present invention.
12 : is a graph which shows the maximum temperature of the vapor|steam temperature in Examples 2 and 3, and Comparative Examples 2-4.
Fig. 13 is a graph showing the amount of glycerin with respect to the number of puffs in Examples 2 and 3 and Comparative Examples 3 and 4;
14 is a graph showing the amount of nicotine with respect to the number of puffs in Examples 2 and 3 and Comparative Examples 3 and 4;

[cooling segment]

The cooling segment which concerns on this invention is the cooling segment for non-combustion heated smoking articles containing a polymer coated paper. The polymer coated paper includes paper and a polymer layer containing a polymer formed on the paper. A cooling segment is a non-combustion heated smoking article. WHEREIN: It is located in the mouth part side from a tobacco containing segment, and shows the segment which cools an aerosol vaporization component.

In the present invention, the cooling segment includes paper and a polymer coated paper including a polymer layer formed on the paper, and the polymer coated paper has better moldability than a sheet made of a polymer. Specifically, since a polymer layer is formed on a paper base having a predetermined hardness and thickness, unlike a sheet (film) made of a polymer, it can be folded even in a small amount to form a desired shape. Therefore, even when it gathers to the said polymer coated paper and it arrange|positions in a cooling segment, a high porosity can be maintained in a cooling segment. Thereby, the low filtration property of an aerosol can be implement|achieved. In addition, since the polymer-coated paper has good moldability, a structure that increases the cooling efficiency of the aerosol-vaporizing component can be formed in the cooling segment. In addition, since the polymer of the polymer layer formed on the polymer coated paper comes into contact with the aerosol vaporization component to undergo a phase change and generate heat absorption, the cooling effect per unit area is high. In addition, even if it is a material with excellent heat absorption properties that cannot be molded into a sheet (film) alone, it can be used by coating it thinly on paper, and since the cooling effect can be improved, the amount of sheet used can be reduced by that much, As a result, low filtration properties of the aerosol can be realized. Hereinafter, the details of the present invention will be described.

(Polymer coated paper)

The polymer coated paper according to the present invention includes paper and a polymer layer containing a polymer formed on the paper. An example of the polymer coated paper which concerns on this invention is shown in FIG. In the polymer coated paper 3 shown in FIG. 1 , the polymer layer 2 is formed on the paper 1 . In addition, although the polymer layer is formed only on one side of the polymer coated paper in FIG. 1, the polymer layer may be formed in both surfaces of the polymer coated paper.

The paper is not particularly limited as long as it functions as a support, but from the viewpoint of filter roll-up ability, the basis weight of the paper is preferably 35 g/m 2 or more, more preferably 35 to 70 g/m 2 . In addition, it is preferable that the air permeability of paper is low, and the air permeability of 0 is more preferable. The thickness of the paper is not particularly limited, but may be, for example, 30 to 70 μm.

The polymer layer contains a polymer. Although the kind of polymer is not specifically limited, A biodegradable polymer and an edible polymer are preferable. In addition, from the viewpoint of allowing the polymer to undergo a phase transition and generate endothermic heat at the temperature in the cooling segment, the glass transition temperature (Tg) of the polymer is preferably 400° C. or less, more preferably 200° C. or less, and 100° C. It is more preferable that it is the following. The lower limit of the Tg of the polymer is not particularly limited, but may be, for example, 40° C. or higher. In addition, Tg of a polymer is a value specifically measured with a differential scanning calorimeter (trade name: "DSC7000", Hitachi High-Tech Sciences make). Specific examples of such a polymer include polyvinyl alcohol (PVA), cellulose acetate, trehalose, maltose, sucrose, maltitol, glucose, WAX, beeswax, hydrogenated oil, and the like. These may use 1 type and may use 2 or more types together. Among these, PVA or polyvinyl alcohol acrylic acid methyl methacrylate copolymer (POVACOAT) is preferable as a polymer from a viewpoint with favorable coatability to paper. In particular, since PVA has a low Tg, an endothermic effect due to a phase transition is easily obtained, and since it has a high affinity for water, it adsorbs water vapor in an aerosol and a cooling effect is easily obtained.

When the polymer is PVA, it is preferable that the average degree of polymerization of PVA is 1500 or less. When the average degree of polymerization of PVA is 1500 or less, coatability to paper is improved, and a polymer layer can be uniformly formed on paper. As for the average degree of polymerization of PVA, it is more preferable that they are 100 or more and 1300 or less, It is still more preferable that they are 300 or more and 1200 or less, It is especially preferable that they are 500 or more and 1000 or less. In addition, the average degree of polymerization of PVA is a value measured based on JISK6726-1994 polyvinyl alcohol test method.

Moreover, when a polymer is PVA, it is preferable that the saponification degree of PVA is 70 mol% or more and 99 mol% or less. As will be described later, when the polymer layer contains a volatile component, the solubility in water is improved because the saponification degree of PVA is 99 mol% or less, and the release performance of the volatile component is improved. The degree of saponification of PVA is more preferably 75 mol% or more and 99 mol% or less, and still more preferably 80 mol% or more and 99 mol% or less. In addition, the saponification degree of PVA is a value measured based on JISK6726-1994 polyvinyl alcohol test method.

The polymer layer preferably further contains at least one of a volatile perfume component and an aerosol generating base material (hereinafter also referred to as a volatile component). In a conventional combustion smoking article, as the high-temperature combustion section burns, only the vicinity of the combustion section in the tobacco-containing segment is heated, and volatile components present therein volatilize and attract the user. That is, the volatile component present in the longitudinal direction of the tobacco-containing segment of the combustion smoking article is supplied by volatilization almost uniformly throughout the suction. On the other hand, in a non-burning heated smoking article, since the whole longitudinal direction of a tobacco containing segment is heated by a heater, most of the volatile components contained in a tobacco containing segment may volatilize by the suction of the first half. On the other hand, when the volatile component is included in the cooling segment following the tobacco-containing segment, there is a possibility that the volatile component is volatilized and released to the outside before use.

When the polymer layer of the polymer-coated paper disposed in the cooling segment contains a volatile component, the volatile component is retained in the polymer layer, so that volatilization of the volatile component before use can be suppressed. In addition, when cooling the aerosol-vaporizing component, a part of the polymer layer becomes rubbery or dissolves, and the volatile component is gradually released from the polymer layer. Thereby, it is possible to stably supply the volatile component throughout the suction. In addition, since the volatile component is contained in the cooling segment, the amount of heat in the smoke is absorbed by vaporization, sublimation, or the like of the volatile component, and a cooling effect can be expected.

The kind of volatile perfume component is not particularly limited, and from the viewpoint of imparting good taste, acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethol, Star anise oil, apple juice, Peruvian balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenyl acetate, benzyl propionate, 2,3-butanedione, 2-butanol, beauty Butyl lactate, butyric acid, caramel, cardamom oil, carob absolute, β-carotene, carrot juice, L-carbon, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, camomil oil, cinnamaldehyde, cinnamic acid , cinnamyl alcohol, cinnamyl acid cinnamyl, citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, cognac oil, coriander oil, cuminaldehyde, davana oil, δ-decalactone, γ-decalactone, Decaneic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3 ,7-dimethyl-6-octhenic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, 2-methylbutyrate, ethyl acetate, ethyl butyrate, hexane Ethyl phosphate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octaphosphate, ethyl oleate, ethyl palmitate, ethyl phenyl acetate, 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, γ-heptalactone, γ-hexalactone, hexane, Cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenyl acetate hexyl, honey, 4-hydroxy-3-penthenic acid lactone, 4-hydroxy-4-(3-hydroxy-1-butenyl) )-3,5,5-trimethyl-2-cyclohexen-1-one, 4- (para-hydroxyphenyl) -2-butanone, 4- Sodium hydroxyundecanoate, immortel absolute, β-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenyl acetate, isobutyl acetate, isobutyl phenyl acetate, jasmine absolute, kola nut tincture, radanum oil, Lemon terpene oil, licorice extract, linalool, linalyl acetate, ruby root oil, malthol, maple syrup, menthol, menthone, L-menthyl acetate, paramethoxybenzaldehyde, methyl-2-pyrrolyl ketone, anthranilic acid Methyl, methyl phenyl acetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, molasses, myristic acid, nerol, nerolidol, γ-nonalactone, nutmeg, δ-octalactone, octanal, octanic acid, orange flower oil, orange oil, oris root oil, palmitic acid, ω-pentadecalactone, peppermint oil, petitgrain paraguay oil, phenethyl alcohol, phenyl acetate phenethyl, phenyl Acetic acid, piperonal, plum extract, propenylguaetol, propyl acetate, 3-propylidenephthalide, plum juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax Absolute, marigold oil, t distilate, 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-undecaractone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, extracts of tobacco plants (tobacco leaves, tobacco stems, tobacco flowers, tobacco roots, and tobacco seeds), particularly preferably menthol. In addition, these volatile perfume components may be used individually by 1 type or may use 2 or more types together. In addition, the aerosol generating substrate is a material capable of generating an aerosol by heating, and is not particularly limited, but for example, glycerin, propylene glycol (PG), triethyl citrate (TEC), triacetin, 1, 3-butanediol etc. are mentioned. These may use 1 type and may use 2 or more types together.

It is preferable that content of the volatile component in a polymer layer is 20 mass % or more and 60 mass % or less with respect to 100 mass % of polymer layers. When the content is 20% by mass or more, it is possible to more stably supply the volatile component throughout the suction. Moreover, when the said content is 60 mass % or less, the exudation from the polymer layer of a volatile component can fully be suppressed. As for the said content, it is more preferable that they are 10 mass % or more and 60 mass % or less, It is more preferable that they are 10 mass % or more and 30 mass % or less.

The thickness of the polymer layer is preferably 30 µm or less. When the thickness of the polymer layer is 30 µm or less, the volatile component is easily released, and the volatile component can be supplied more stably throughout the suction. As for the thickness of a polymer layer, 5 micrometers or more and 25 micrometers or less are more preferable, and 10 micrometers or more and 25 micrometers or less are still more preferable.

The polymer layer preferably has a porous structure. For example, when a volatile component exists inside a hole of a porous structure, a part of the porous structure is destroyed by heating, and a volatile component inside is released gradually. Thereby, it is possible to uniformly supply the volatile component throughout the suction. The SEM image which image|photographed the cross section of an example of the polymer layer which has a porous structure which concerns on this invention at 1500 times is shown in FIG. In Fig. 2, the polymer layer 2 formed on the paper 1 has a plurality of fine pores, and volatile components exist inside the pores.

When a polymer layer has a porous structure, 0.5 micrometer or more and 20 micrometers or less are preferable and, as for the average pore diameter of a porous structure, 1 micrometer or more and 10 micrometers or less are more preferable. In addition, the average pore diameter of a porous structure is a value measured by CD-SEM.

Although the method of forming the porous structure is not particularly limited, for example, as described later, when the polymer and the volatile component are emulsified with an emulsifier when preparing the coating solution for the polymer layer, micelles are formed. structure can be formed. In this case, the average pore diameter and porosity of the porous structure can be adjusted according to the amount of the emulsifier used.

(composition of cooling segment)

The cooling segment which concerns on this invention will not be specifically limited if the polymer coated paper which concerns on this invention mentioned above is included. Hereinafter, although specific embodiment is shown, the cooling segment which concerns on this invention is not limited to these.

3 and 4 are (a) perspective views and (b) sectional views of 1 and 2 of the first embodiment of the cooling segment according to the present invention. The cooling segment 5 shown in FIGS. 3 and 4 is equipped with the polymer coated paper 3 and the wrapper 4 which wraps the polymer coated paper 3 . The polymer coated paper 3 includes paper and a polymer layer containing a polymer formed on the paper, and is arranged in the wrapper 4 of the cooling segment 5 after being gathered. The groove formed by the gather extends in the axial direction of the cooling segment 5 , that is, in the horizontal direction in FIGS. 3 and 4 . By having the polymer coated paper 3 in the cooling segment 5 having such a structure, the surface area of the polymer coated paper 3 can be increased while maintaining the permeability of the aerosol in the axial direction of the cooling segment 5 Therefore, the filterability of the aerosol becomes low, and the cooling performance of the aerosol vaporization component becomes high. In addition, the number of the groove|channels formed by a gather is not specifically limited. In Fig. 3, before the polymer coated paper 3 is gathered and placed in the wrapper 4 of the cooling segment 5, a plurality of axially bent lines (also called crimps or crepes) of the cooling segment 5 are formed in advance. have. On the other hand, in FIG. 4, the said curved line is not formed in the polymer coated paper 3. As shown in FIG. Compared with the polymer coated paper 3 of FIG. 4, the polymer coated paper 3 of FIG. 3 has a plurality of lines bent in the axial direction of the cooling segment 5, so that the bending of the polymer coated paper 3 is sharp. Do.

In the first embodiment, the polymer layer-formed surface of the polymer coated paper 3 preferably has a surface area of 100 to 280 mm 2 per 1 mm in the axial direction of the cooling segment 5 . When the surface area of the polymer layer formation surface is within the above range, the cooling efficiency of the aerosol vaporization component can be improved while maintaining the low filtration property of the aerosol. In addition, the surface area per 1 mm of the axial direction of the cooling segment 5 of the polymer layer formation surface of the polymer coated paper 3 is the surface area of the polymer layer formation surface of the polymer coated paper 3 disposed in the cooling segment 5 (mm 2 ) ) divided by the axial length (mm) of the cooling segment 5 .

The polymer layer may be formed on only one side of the polymer coated paper 3 or may be formed on both sides, but when the polymer layer is formed only on one side of the polymer coated paper 3, the surface area is 100 to 150 mm 2 It is preferable to exist in the range, It is more preferable to exist in the range of 120-150 mm<2>, It is more preferable to exist in the range which is 130-150 mm<2>. On the other hand, when the polymer layer is formed on both sides of the polymer coated paper 3, the surface area is preferably in the range of 200 to 300 mm2, more preferably in the range of 240 to 300 mm2, and 260 to 300 mm2 It is more preferable to be in the range.

(a) A perspective view and (b) sectional drawing of 2nd Embodiment of the cooling segment which concerns on this invention are shown in FIG. In FIG. 5 , a plurality of rectangular polymer coated papers 3 are included in the wrapper 4 of the cooling segment 5 . The length in the longitudinal direction of the polymer coated paper 3 is longer than the diameter of the cooling segment 5 (diameter length of the cross section in the plane perpendicular to the axial direction of the cooling segment 5). In addition, the longitudinal direction of the polymer coated paper 3 is arrange|positioned so that it may become substantially parallel to the axial direction of the cooling segment 5, ie, the horizontal direction of FIG. Here, "approximately parallel" indicates a direction within ±10° with respect to the target direction. By having the polymer coated paper 3 in the cooling segment 5 having such a structure, the permeability of the aerosol in the axial direction of the cooling segment 5 can be maintained while increasing the surface area of the polymer coated paper 3 For this reason, the cooling performance of an aerosol vaporization component becomes high, and the filterability of an aerosol becomes low. Although the length (width) in the transverse direction of the polymer coated paper 3 is not specifically limited, It is preferable that they are 0.2 mm or more and 5 mm or less, It is more preferable that they are 0.5 mm or more and 3 mm or less.

(a) A perspective view and (b) sectional drawing of 3rd Embodiment of the cooling segment which concerns on this invention are shown in FIG. In FIG. 6 , a plurality of strand-shaped (string-shaped) polymer coated papers 3 are contained in the wrapper 4 of the cooling segment 5 . The polymer coated paper 3 is filled in the cooling segment 5 . The longitudinal direction of the polymer coated paper 3 is not particularly limited, and may be an unspecified direction with respect to the axial direction of the cooling segment 5 as shown in FIG. 6(b) . Since the polymer coated paper 3 has such a structure in the cooling segment 5, the polymer coated paper 3 is short, increasing the surface area of the polymer coated paper 3 while maintaining the aerosol permeability. , the cooling performance of the aerosol vaporization component is increased, and the filterability of the aerosol is low. Although the length in the longitudinal direction of the polymer coated paper 3 is not specifically limited, It may be shorter than the diameter of the cooling segment 5, For example, it may be 1 mm or more and 10 mm or less. Further, the length of the polymer coated paper 3 in the transverse direction is not particularly limited, but may be, for example, 0.5 mm or more and 2 mm or less.

Although the shape of a cooling segment is not specifically limited, For example, it may be columnar shape. When the cooling segment is columnar, the peripheral length of the cooling segment is preferably 16 to 25 mm, more preferably 20 to 24 mm, still more preferably 21 to 23 mm. Further, the length of the cooling segment in the axial direction is preferably 5 to 70 mm, more preferably 5 to 50 mm, still more preferably 5 to 30 mm. The cross-sectional shape of the cooling segment is not particularly limited, but may be, for example, circular, elliptical, polygonal, or the like. Moreover, perforation may exist.

[Manufacturing method of cooling segment]

The manufacturing method of the cooling segment which concerns on this invention is equipped with the process of apply|coating the coating liquid containing a polymer on paper, and manufacturing a polymer coating paper. According to the said method, the cooling segment which concerns on this invention can be manufactured suitably.

Although the preparation method of the said coating liquid is not specifically limited, For example, the dispersion liquid in which the polymer and the volatile component added as needed are disperse|distributed in the aqueous dispersion medium can be prepared. When using a solid component at room temperature, such as menthol as a volatile fragrance|flavor component, it is preferable to melt|dissolve the said solid component beforehand in ethanol etc. Specifically, for example, the solid component is dissolved in ethanol and added to a polymer liquid previously dispersed in water. If necessary, an aerosol generating base such as an emulsifier or glycerin may be added to prepare a dispersion. Examples of the emulsifier include glycerin fatty acid ester, sucrose fatty acid ester, and lecithin. These may use 1 type and may use 2 or more types together.

In the dispersion, the solid component is dissolved in ethanol, and the lysate and the polymer are dispersed in the dispersion (aqueous ethanol solution). When the dispersion is applied and dried, the ethanol and water are removed by volatilization, so the portion where ethanol and water were present becomes a hole. Therefore, the polymer layer to be formed has a porous structure, and it is considered that the solid component is present inside the pores. In addition, when an emulsifier is used, micelles comprising ethanol, an emulsifier and the solid component are formed. When the ethanol and water are removed, pores are formed in the micelles, and the solid component remains inside the pores. Therefore, it is considered that the polymer layer to be formed has a porous structure, and the solid component is present inside the pores. The pore diameter of the porous structure can be adjusted according to the amount of the emulsifier used, for example, the smaller the amount of the emulsifier used, the larger the hole diameter. From the viewpoint of sufficiently retaining the volatile component in the hole and releasing it gradually by heating, it is preferable that the hole diameter be larger. That is, it is preferable that the usage-amount of an emulsifier is small. It is preferable that the emulsifier concentration in a dispersion liquid is 0 mass % or more and 10 mass % or less. Moreover, it is preferable that the polymer concentration in a dispersion liquid is 10 mass % or more and 30 mass % or less. Moreover, when using ethanol, it is preferable that the ethanol concentration in a dispersion liquid is 5 mass % or more and 15 mass % or less. It is preferable that the density|concentration of the volatile component in a dispersion liquid is 5 mass % or more and 20 mass % or less.

Next, the coating solution may be applied on paper and dried. The amount of the coating liquid applied to the paper can be appropriately selected according to the thickness of the polymer layer to be formed. The drying temperature may be, for example, 60 °C or more and 200 °C or less. Thereby, the polymer coated paper in which the polymer layer was formed on the paper is obtained.

The obtained polymer coated paper can be arrange|positioned in a wrapper. The shape and arrangement of the polymer coated paper in the wrapper are not particularly limited, and examples thereof include the shape and arrangement of the polymer coated paper in the cooling segment of the first to third embodiments described above.

In the first embodiment, the polymer coated paper can be molded into a desired shape by, for example, folding the polymer coated paper into a pleated box shape by a process such as crepe. Specifically, after the polymer coated paper is creped with a crepe roll, gathering is started with a transport jet, and it is finished with tongs and gathered up to the circumference size. After that, it is wound with a wrapper, hot melt is applied to the end of the wrapper (the portion overlapping each other when wound) with a wrap pull gun, and cooled with a cooler bar. Finally, by cutting to a predetermined length with a cutter, a cooling segment is obtained. In the case where crepe is not formed, the creping process in the crepe roll part can be omitted.

Moreover, in 2nd Embodiment, a cooling segment can be obtained by cutting|disconnecting a polymer coated paper into rectangular shape, putting some rectangular polymer coated paper in a normal wrapper, or winding up with a wrapper.

Moreover, in 3rd Embodiment, a cooling segment can be obtained by cutting|disconnecting a polymer coated paper into strand shape (string shape), putting a plurality of stranded polymer coated paper in a normal wrapper, or winding with a wrapper.

[Non-burning heated smoking article]

The non-burning heated smoking article according to the present invention includes a tobacco-containing segment and a cooling segment according to the present invention. Since the said non-combustion heated smoking article is equipped with the cooling segment which concerns on this invention, the cooling performance of an aerosol vaporizing component is high, and the filterability of an aerosol is low. The non-burning heated smoking article which concerns on this invention may have another segment other than a tobacco containing segment and a cooling segment.

(First embodiment)

An example of 1st Embodiment of the non-combustion heated smoking article which concerns on this invention is shown in FIG. The non-burning heated smoking article 30 shown in FIG. 7 is equipped with the tobacco containing segment 10 and the mouthpiece segment 11. As shown in FIG. The mouthpiece segment 11 includes a cooling segment 5 according to the present invention, a center hole segment 12 , and a filter segment 13 . When smoking, the tobacco-containing segment 10 is heated and suction is effected from the end of the filter segment 13 . In addition, the position of the cooling segment 5 is not limited to the position shown in FIG. 7, Any segment of the mouthpiece segment 11 may be sufficient.

Tobacco-containing segment 10 has a tobacco filling 14 comprising tobacco and an aerosol generating substrate, and a plain wrapper 15 overlying the tobacco filling 14 . The tobacco filling 14 may further contain a volatile fragrance component, water, and the like. There is no particular limitation on the size of the tobacco used as a filler or the preparation method thereof. For example, you may use what chopped the dried tobacco leaf into width 0.8-1.2mm. When chopped to the above width, the length of the piece is approximately 5 to 20 mm. Moreover, you may use the thing which grind|pulverized the dried tobacco leaves so that an average particle diameter might be about 20-200 micrometers and made it into a sheet|seat, and what cut it into 0.8-1.2 mm wide may be used. When chopped to the above width, the length of the piece is approximately 5 to 20 mm. Moreover, you may use the thing which carried out the gathering process without slicing with respect to the thing which carried out the said sheet processing as a filling material. Even if it is a case where the dried tobacco leaves are chopped and used, or a case where it is used as a sheet|seat which grind|pulverized and uniformed, the kind of tobacco contained in a tobacco filling can use a various thing. Yellow species, burley species, orient species, native species, and other Nicotiana/Tabacum-based varieties or Nicotiana/Rustica-based varieties may be used by appropriately blending them to achieve the desired taste. Details of the tobacco varieties are disclosed in "Tobacco Dictionary, Tobacco Research Center, 2009. 3. 31". There are a plurality of conventional methods for pulverizing tobacco and processing it into a homogenizing sheet. The first is a papermaking sheet made using the papermaking process, and the second is by mixing an appropriate solvent such as water to make it uniform, then thinly casting the homogenized material on a metal plate or a metal plate belt, and drying it. It is a cast sheet made by making a sheet, and the third is a rolled sheet obtained by extruding into a sheet shape obtained by mixing an appropriate solvent such as water to make it uniform. Regarding the type of the homogenizing sheet, details are disclosed in "Tobacco Dictionary, Tobacco Research Center, 2009. 3. 31". Although the packing density of the tobacco filling 14 is not particularly limited, the performance of the non-burning heated smoking article 30 is ensured, and from the viewpoint of imparting good taste, it is usually 250 mg/cm 3 or more, Preferably it is 320 mg/cm<3> or more, and is 520 mg/cm<3> or less normally, Preferably it is 420 mg/cm<3> or less. Specifically, the range of content of the tobacco filling 14 in the tobacco containing segment 10 is 200-400 mg per tobacco containing segment 10, when it is the tobacco containing segment 10 of 22 mm in circumference and 20 mm in length. and 250 to 320 mg are preferred. As for the aerosol generating base material and the volatile fragrance component, the same thing as the volatile component which can be contained in the polymer layer of the polymer coating paper which concerns on this invention may be used, and a different thing may be used. The amount of the aerosol-generating substrate included in the tobacco filling 14 may be, for example, 10-30% by mass relative to 100% by mass of the tobacco filling 14 .

Although the method of filling the tobacco filling 14 in the wrapper 15 is not specifically limited, For example, the tobacco filling 14 may be wrapped in the wrapper 15, The tobacco filling in the normal wrapper 15 (14) may be charged. When the shape of the cigarette has a longitudinal direction such as a rectangular shape, the cigarette may be filled so that the longitudinal direction is in an unspecified direction within the wrapper 15, respectively, in the axial direction of the tobacco-containing segment 10 or in its axial direction. It may be aligned and filled so that it may become a direction perpendicular|vertical to each other. By heating the tobacco-containing segment 10 , the tobacco components and aerosol-generating substrate contained in the tobacco filling 14 are vaporized, and by suction they migrate to the mouthpiece segment 11 .

The center hole segment is composed of a filling layer having one or a plurality of hollow portions, and an inner plug wrapper covering the filling layer. For example, the center hole segment 12 is composed of a first filling layer 16 having a hollow portion and a first inner plug wrapper 17 covering the first filling layer 16 . The center hole segment 12 has a function of increasing the strength of the mouthpiece segment 11 . The first filling layer 16 is, for example, filled with cellulose acetate fibers at a high density, and 6 to 20% by mass of a plasticizer containing triacetin is added to the mass of cellulose acetate and cured with an inner diameter of φ5.0 to φ1. It can be done with a 0 mm rod. Since the packing density of fibers in the first packing layer 16 is high, at the time of suction, air or aerosol flows only through the hollow part, and hardly flows in the first packing layer 16 . In the non-combustion heated smoking article 30, when it is desired to reduce the reduction of the aerosol component in the filter segment 13 by filtration, the length of the filter segment 13 is shortened and replaced with the center hole segment 12. It is effective in order to increase the delivery amount of an aerosol component. Since the first filling layer 16 inside the center hole segment 12 is a fiber filling layer, the tactile feeling from the outside during use is less likely to cause discomfort to the user.

The filter segment 13 is composed of a second filling layer 18 and a second inner plug wrapper 19 covering the second filling layer 18 . Since the filter segment 13 has a second packing layer 18 up to the wet end, it has the same external appearance as a conventional combustion smoking article. At the time of suction, air and aerosol pass through the inside of the 2nd packing layer 18, and a part of aerosol is filtered. The second filling layer 18 may be, for example, a filling layer of cellulose acetate fibers.

The center hole segment 12 and the filter segment 13 are connected by an outer plug wrapper 20 . The outer plug wrapper 20 may be, for example, a cylindrical paper. Moreover, the tobacco containing segment 10, the cooling segment 5, and the center hole segment 12 and the filter segment 13 in which the connection was completed are connected by the mouthpiece lining paper 21. As shown in FIG. These connections can be made by, for example, coating the inner surface of the mouthpiece lining paper 21 with glue such as vinyl acetate glue, and winding the three segments.

Although the length of the axial direction of 1st Embodiment of the non-combustion heated smoking article which concerns on this invention, ie, the horizontal direction in FIG. 7 is not specifically limited, It is preferable that it is 40 mm - 90 mm, and 50 mm - 75 mm It is more preferable that it is, and it is still more preferable that it is 50 mm - 60 mm. Moreover, it is preferable that the circumferential length of the non-combustion heating type smoking article is 16 mm - 25 mm, It is more preferable that it is 20 mm - 24 mm, It is more preferable that it is 21 mm - 23 mm. For example, the tobacco containing segment 10 is 20 mm long, the cooling segment 5 is 20 mm long, the center hole segment 12 is 8 mm long, and the filter segment 13 is 7 mm long. aspects can be mentioned. These individual segment lengths can be suitably changed according to manufacturing aptitude, required quality, etc. Furthermore, even if only the filter segment 13 is arrange|positioned downstream of the cooling segment 5 without using the center hole segment 12, it can also function as the non-combustion heated smoking article 30. As shown in FIG. In addition, the order of the cooling segment 5 and the center hole segment 12 may be changed. In addition, you may form a center hole segment instead of the filter segment 13 from a viewpoint of aerosol filterability.

(2nd embodiment)

An example of the 2nd Embodiment of the non-combustion heated smoking article which concerns on this invention is shown in FIG. The non-burning heated smoking article 30 shown in FIG. 11 is equipped with the tobacco containing segment 10 and the mouthpiece segment 11. As shown in FIG. The mouthpiece segment 11 includes a first cooling segment 22 , a second cooling segment 5 according to the present invention, and a center hole segment 12 . In this embodiment, since the filter segment (filter segment 13 in 1st Embodiment) which does not have a hollow part does not exist, the filterability of an aerosol can be reduced more. The tobacco containing segment 10 and the center hole segment 12 may be the same as the tobacco containing segment and the center hole segment in 1st Embodiment.

The first cooling segment 22 is constituted by a cylindrical member 23 . The cylindrical member 23 may be, for example, a paper tube obtained by processing thick paper into a cylindrical shape. The cylindrical member 23 and the mouthpiece lining paper 21 are formed with perforations 24 penetrating both. By virtue of the presence of the perforations 24 , outside air is introduced into the first cooling segment 22 upon suction. Thereby, the volatile component vaporized by heating the tobacco-containing segment 10 can contact the outside air, and the temperature can be reduced. The diameter (diameter length) of the perforations 24 is not particularly limited, but may be, for example, 0.5 to 1.5 mm. The number of the perforations 24 is not particularly limited, and may be one or two or more. For example, a plurality of perforations 24 may be formed on the circumference of the first cooling segment 22 .

The length in the axial direction of the second embodiment of the non-burning heated smoking article according to the present invention, that is, in the horizontal direction in Fig. 11 is not particularly limited, but is preferably 40 mm to 90 mm, preferably 50 mm to 75 mm It is more preferable that it is, and it is still more preferable that it is 50 mm - 60 mm. Moreover, it is preferable that the circumferential length of the non-combustion heating type smoking article is 16 mm - 25 mm, It is more preferable that it is 20 mm - 24 mm, It is more preferable that it is 21 mm - 23 mm. For example, the length of the tobacco containing segment 10 is 20 mm, the length of the first cooling segment 22 is 20 mm, the length of the second cooling segment 5 is 8 mm, the length of the center hole segment 12 is is 7 mm. These individual segment lengths can be suitably changed according to manufacturing aptitude, required quality, etc.

[Non-burning heated smoking system]

A non-burning heated smoking system according to the present invention includes the non-burning heated smoking article according to the present invention, and a heating device for heating a tobacco-containing segment. Since the non-burning heated smoking system includes the non-burning heated smoking article according to the present invention, the cooling performance of the aerosol vaporization component is high, and the filterability of the aerosol is low. The non-burning heated smoking system according to the present invention will not be particularly limited as long as it includes the non-burning heated smoking article according to the present invention and the heating device, and may have other configurations.

An example of the non-combustion heated smoking system which concerns on this invention is shown in FIG. The non-combustion heated smoking system shown in FIG. 8 is the non-burning heated smoking article 30 which concerns on 1st Embodiment of this invention, and the heating apparatus which heats the tobacco containing segment of the non-burning heated smoking article 30 from the outside. (31) is provided. FIG. 8(a) shows a state before the unburned heated smoking article 30 is inserted into the heating device 31 , and FIG. 8(b) shows the unburned heated smoking article 30 is inserted into the heating device 31 . to indicate the heating state. The heating device 31 shown in FIG. 8 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 as an inner side surface of the recess 37, a tobacco-containing segment of an unburned heated smoking article 30 inserted into the recess 37; The heater 33 and the metal tube 34 are arrange|positioned at the corresponding position. The heater 33 may be a heater by electric resistance, and electric power is supplied from the battery unit 35 in accordance with an instruction from the control unit 36 that performs temperature control, so that the heater 33 is heated. The heat generated by the heater 33 is transferred to the tobacco-containing segment of the unburnt heated smoking article 30 through the high thermal conductivity metal tube 34 . In Fig. 8(b), since it is schematically shown, there is a gap between the outer periphery of the non-burning heated smoking article 30 and the inner periphery of the metal tube 34, but in reality, it is a non-combustible heated smoking article 30 for the purpose of efficiently transferring heat. It is preferable that there is no gap between the outer periphery of the combustion-heated smoking article 30 and the inner periphery of the metal tube 34 . Further, the heating device 31 heats the tobacco-containing segment of the unburned heated smoking article 30 from the outside, but may heat it from the inside.

Although the heating temperature by a heating apparatus is not specifically limited, It is preferable that it is 400 degrees C or less, It is more preferable that they are 150 degrees C or more and 400 degrees C or less, It is more preferable that they are 200 degrees C or more and 350 degrees C or less. In addition, heating temperature shows the heater temperature of a heating apparatus.

Example

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

[Example 1]

(Production of polymer coated paper)

A liquid obtained by dissolving 21 g of menthol in 9 g of ethanol was prepared (hereinafter referred to as liquid A). 45 g of PVA (Tg: 58° C., average degree of polymerization: 500, degree of saponification: 85 to 89 mol%) was dispersed and mixed in 116 g of water heated to 80° C. In this, liquid A was added, stirring sufficiently with a stirrer, to prepare a dispersion liquid. The dispersion is coated on one side on paper (trade name: 50NFB, made by Nippon Paper Papyria, basis weight: 50 g/m2, air permeability: 0 CU, oil-resistant) on one side and dried at 60-90° C., so that the paper has a thickness of 20- A polymer coated paper on which a 30 µm polymer layer was formed was obtained. As a result of observing the cross section of the polymer layer by SEM, it was confirmed that the polymer layer had a porous structure. In order to tighten the polymer-coated paper into a rod shape, it was corrugated.

(Production of non-combustible heated smoking articles for evaluation)

A commercially available non-combustion heated smoking article (trade name: IQOS regular, manufactured by Philip Morris) was prepared. The non-burning heated smoking article is the non-burning heated smoking article shown in FIG. 7 , except that the order of the cooling segment 5 and the center hole segment 12 is reversed in the non-burning heated smoking article 30 shown in FIG. 7 . It has the same segment configuration as the article 30 . A portion corresponding to the tobacco-containing segment of the non-combustible heated smoking article contains tobacco and glycerin as an aerosol-generating substrate. Moreover, the thing in which the film which consists of polylactic acid was gathered is arrange|positioned in the part corresponded to the cooling segment of the non-burning heated smoking article.

The film made of polylactic acid disposed in a portion corresponding to the cooling segment of the unburned heated smoking article was taken out, and the prepared polymer coated paper after molding was placed instead, to obtain an unburned heated smoking article for evaluation. The surface area per 1 mm of the axial direction of the part corresponding to the cooling segment of the polymer layer formation surface of the said polymer coated paper was 106 mm<2>.

(Evaluation of cooling performance)

A thermocouple (trade name: Type K 0.5 mmφ, manufactured by Chino Corporation) was inserted immediately before and immediately after the portion corresponding to the cooling segment of the non-burning heated smoking article for evaluation. The temperature detected by the thermocouple inserted immediately before the portion corresponding to the cooling segment is indicated as the cooling segment inlet temperature, and the temperature detected by the thermocouple inserted immediately after the portion corresponding to the cooling segment is indicated as the cooling segment outlet temperature, respectively. Using a heating device (trade name: IQOS2.4, manufactured by Philip Morris Corporation) corresponding to the commercially available non-burning heated smoking article, the portion corresponding to the tobacco-containing segment of the non-burning heated smoking article for evaluation was heated at about 350°C. It heated and suctioned. Suction was performed at 55 ml/2 seconds per puff (1 puff is 30 seconds apart, that is, suction for 2 seconds and waiting for 28 seconds), a total of 10 puffs were performed. The cooling segment inlet temperature and the cooling segment outlet temperature were measured for each puff, and an average value of 10 times was calculated, respectively (represented by an average inlet temperature and an average outlet temperature, respectively). The average outlet temperature was 63.6°C. In addition, the cooling efficiency per unit area calculated by dividing the temperature (ΔT (°C)) lowered by cooling by the surface area (cm 2 ) of the polymer layer formation surface of the polymer coated paper was 0.43° C./cm 2 . In addition, ΔT (°C) is a value obtained by subtracting the average outlet temperature from the average inlet temperature.

(Evaluation of aerosol filterability)

A Glass Fiber Filter (trade name: Cambridge Filter 44mm, manufactured by Borgwaldt) was placed immediately after the water end of the non-burning heated smoking article for evaluation. A portion corresponding to the tobacco-containing segment of the non-burning heated smoking article for evaluation is heated at 350°C using a heating device corresponding to the commercially available non-burning heated smoking article (trade name: IQOS2.4, manufactured by Philip Morris Corporation). Thus, suction was performed. Suction was performed at 55 ml/2 seconds per puff based on the CIR method (Canada compulsory smoking conditions method) (1 puff is 30 seconds apart, that is, suction for 2 seconds and wait for 28 seconds), a total of 10 puffs were performed. . The amount of glycerin and menthol collected by the Cambridge Filter Pad for each puff was quantified. Specifically, 10 ml of isopropanol (IPA) was used as an extraction solvent for the collected components, and shaking was performed for 20 minutes at 200 rmp. The obtained extract was subjected to GC analysis under the following conditions to quantify the amounts of glycerin and menthol for each puff.

Inlet temperature: 240℃

Oven temperature: After holding at 150°C for 1.3 minutes, the temperature is raised to 240°C at 70°C/min and maintained for 5 minutes

Column: Product name: DB-WAX 10 m × 0.18 mm × 0.18 μm, manufactured by Agilent

Detector: FID

The amount of glycerin for each puff is shown in Fig. 9 and the amount of menthol is shown in Fig. 10, respectively.

[Comparative Example 1]

A commercially available non-burning heated smoking article (trade name: IQOS Menthol, manufactured by Philip Morris) was prepared. The non-burning heated smoking article is the non-burning heated smoking article shown in FIG. 7 , except that the order of the cooling segment 5 and the center hole segment 12 is reversed in the non-burning heated smoking article 30 shown in FIG. 7 . It has the same segment configuration as the article 30 . The portion corresponding to the tobacco-containing segment of the non-combusted heated smoking article contains tobacco, glycerin as an aerosol-generating substrate, and menthol as a volatile flavor component. Moreover, the thing in which the film which consists of polylactic acid was gathered is arrange|positioned in the part corresponded to the cooling segment of the non-burning heated smoking article. The surface area per 1 mm in the axial direction of the portion corresponding to the cooling segment of the polymer layer formation surface of the film made of polylactic acid is 220 mm 2 . In addition, the amount of menthol contained in the non-burning heated smoking article (6 mg/1 piece) is smaller than the menthol amount (12 mg/1 piece) contained in the non-burning heated smoking article for evaluation produced in Example 1.

Except for using the non-burning heated smoking article, it was heated and sucked in the same manner as in Example 1, and the cooling performance and the filterability of the aerosol were evaluated. The average outlet temperature was 59.2°C. In addition, the cooling efficiency per unit area was 0.26°C/mm 2 . In addition, the amount of glycerin for each puff is shown in FIG. 9 and the amount of menthol is shown in FIG. 10, respectively. In the calculation of the cooling efficiency per unit area, the surface area of the film made of polylactic acid was calculated assuming that the polymer layer was formed on one side.

Evaluation of cooling performance WHEREIN: In Example 1 using a polymer coated paper, the average outlet temperature was substantially equal to that of Comparative Example 1 in which a film made of polylactic acid was used. However, since the surface area of the polymer-coated paper was smaller than that of the film made of polylactic acid, the cooling efficiency per unit area of Example 1 was higher.

Moreover, in Example 1, since the said surface area was small, the porosity in the cooling segment was high, and as shown in FIG. 9, the supply amount of glycerin was large, ie, the filterability of an aerosol was low. Moreover, in Example 1, menthol did not volatilize before use, and as shown in FIG. 10, menthol was supplied stably throughout the suction.

[Example 2]

(Production of non-combustible heated smoking articles for evaluation)

A commercially available non-burning heated smoking article (trade name: Ploom S, manufactured by Nippon Tobacco Industry Co., Ltd.) was prepared. As for the non-burning heated smoking article, in the non-burning heated smoking article 30 shown in Fig. 11, the second cooling segment 5 is replaced by a center hole segment, and the center hole segment 12 is filled with cellulose acetate fibers. replaced with a filtered segment. In the non-burning heated smoking article, the center hole segment was replaced with a cooling segment filled with the polymer coated paper prepared in Example 1. Further, the filter segment was replaced with a center hole segment having a hollow part having a diameter of 1.5 mm. Thereby, the non-burning heated smoking article 30 shown in FIG. 11 in which the polymer coated paper produced in Example 1 was filled in the 2nd cooling segment 5 was produced. The tobacco containing segment 10 was 20 mm long, the first cooling segment 22 was 20 mm long, the second cooling segment 5 was 8 mm long, and the center hole segment 12 was 7 mm long. .

(Evaluation of cooling performance)

A thermocouple was formed at a position 7 mm downstream (user side) from the water beak cross-section of the unburned heated smoking article for evaluation, and the steam temperature was measured. Using a heating device (trade name: Ploom S, manufactured by Nippon Tobacco Industry Co., Ltd.) corresponding to the commercially available non-combustible heated smoking article, a portion corresponding to the tobacco-containing segment of the non-combusted heated smoking article for evaluation is heated at 230°C. Thus, suction was performed. Suction was performed at 55 ml/2 seconds per puff (1 puff is 30 seconds apart, that is, suction for 2 seconds and wait for 28 seconds), a total of 8 puffs were performed. The maximum temperature of the vapor temperature measured by the thermocouple is shown in FIG. 12 .

(Evaluation of aerosol filterability)

A Glass Fiber Filter (trade name: Cambridge Filter 44mm, manufactured by Borgwaldt) was placed immediately after the water end of the non-burning heated smoking article for evaluation. Using a heating device (trade name: Ploom S, manufactured by Nippon Tobacco Industry Co., Ltd.) corresponding to the commercially available non-combustible heated smoking article, a portion corresponding to the tobacco-containing segment of the non-combusted heated smoking article for evaluation is heated at 230°C. Thus, suction was performed. Suction was performed at 55 ml/2 seconds per puff based on the CIR method (Canadian compulsory smoking condition method) (1 puff is 30 seconds apart, that is, suction for 2 seconds and wait for 28 seconds), a total of 8 puffs were performed. . Glycerin and nicotine collected by the Cambridge Filter Pad for each puff were quantified. Quantification of glycerin and nicotine was performed by the method similar to Example 1. The amount of glycerin for each puff is shown in Fig. 13, and the amount of nicotine is shown in Fig. 14, respectively.

[Example 3]

A polymer coated paper was produced in the same manner as in Example 1 except that menthol was not added. An unburned heated smoking article for evaluation was produced in the same manner as in Example 2 except that the polymer coated paper was used, and cooling performance and aerosol filterability were evaluated. The evaluation results are shown in FIGS. 12 to 14 .

[Comparative Example 2]

A non-burning heated smoking article for evaluation was produced in the same manner as in Example 2, except that the paper used in the production of the polymer coated paper of Example 1 was used as it is instead of the polymer coated paper, and the cooling performance was evaluated. The evaluation result is shown in FIG.

[Comparative Example 3]

A commercially available non-burning heated smoking article (trade name: Ploom S, manufactured by Nippon Tobacco Industry Co., Ltd.) was prepared. As for the non-burning heated smoking article, in the non-burning heated smoking article 30 shown in Fig. 11, the second cooling segment 5 is replaced with a center hole segment, and the center hole segment 12 is filled with cellulose acetate fibers. replaced by a filtered segment. In the non-combusted heated smoking article, the center hole segment was replaced with a center hole segment having a hollow part having a diameter of 1.5 mm. Further, the filter segment was replaced with a center hole segment having a hollow part having a diameter of 4.5 mm. Cooling performance and the filterability of an aerosol were evaluated similarly to Example 2 using the obtained non-burning heated smoking article for evaluation. The evaluation results are shown in FIGS. 12 to 14 .

[Comparative Example 4]

A commercially available unburned heated smoking article (trade name: Ploom S, manufactured by Nippon Tobacco Industry Co., Ltd.) was used as it is as an unburned heated smoking article for evaluation, and cooling performance and aerosol filterability were evaluated in the same manner as in Example 2. The evaluation results are shown in FIGS. 12 to 14 .

As shown in Fig. 12, in Examples 2 and 3 in which the cooling segment containing the polymer coated paper was used, the vapor temperature was lower and the cooling performance was higher than in Comparative Examples 2 to 4 in which the cooling segment containing the polymer coated paper was not used.

In addition, as shown in FIGS. 13 and 14, in Examples 2 and 3 in which a cooling segment containing a polymer coated paper and a center hole segment having a hollow portion downstream thereof were formed, a sufficient amount of glycerin and nicotine were supplied. , it was found that the filterability of the aerosol was low. On the other hand, in Comparative Example 4, the amount of glycerin and the amount of nicotine were small, and when a filter segment having no hollow part existed, it turned out that the filterability of an aerosol etc. increases. Moreover, in Comparative Example 3, although sufficient glycerin amount and nicotine amount were supplied, as shown in FIG. 12, sufficient cooling performance was not acquired in this case.

1: Paper
2: polymer layer
3: Polymer coated paper
4: rapper
5: cooling segment (second cooling segment)
10: Tobacco containing segment
11: Mouthpiece segment
12: center hole segment
13: filter segment
14: Tobacco filling
15: Rapper
16: first filling layer
17: 1st inner plug rapper
18: second filling layer
19: 2nd inner plug rapper
20: outer plug rapper
21: mouthpiece lining paper
22: first cooling segment
23: normal absence
24: perforation
30: non-combustible heated smoking article
31: heating device
32: body
33: heater
34: metal tube
35: battery unit
36: control unit
37: recess

Claims (13)

A cooling segment for a non-combustible heated smoking article comprising: a paper; and a polymer coated paper comprising a polymer layer containing a polymer formed thereon. The method of claim 1,
The cooling segment wherein the polymer layer further comprises at least one of a volatile perfume component and an aerosol-generating substrate. The method according to claim 1 or 2,
A cooling segment wherein the glass transition temperature of the polymer is 400° C. or less. The method according to any one of claims 1 to 3,
A cooling segment in which the polymer layer has a porous structure. The method according to any one of claims 1 to 4,
The cooling segment, wherein the polymer coated paper is gathered and disposed within the cooling segment, the groove formed by the gather extending in an axial direction of the cooling segment. The method of claim 5,
The cooling segment, wherein the polymer layer-formed surface of the polymer coated paper has a surface area of 100 to 280 mm 2 per 1 mm in the axial direction of the cooling segment. The method according to any one of claims 1 to 6,
A cooling segment in which the polymer layer is formed on one or both surfaces of the polymer coated paper. The method according to any one of claims 1 to 7,
Comprising a plurality of the polymer coated paper in the shape of a rectangle,
a length in the longitudinal direction of the rectangular polymer coated paper is longer than a diameter of the cooling segment;
The cooling segment is arrange|positioned so that the longitudinal direction of the said rectangular polymer coated paper may become substantially parallel to the axial direction of the said cooling segment. The method according to any one of claims 1 to 7,
Including a plurality of the polymer coated paper on the strand,
a length in the longitudinal direction of the stranded polymer-coated paper is shorter than a diameter of the cooling segment;
A cooling segment in which the plurality of stranded polymer coated paper is filled in the cooling segment. 10. An unburned heated smoking article comprising a tobacco-containing segment and a cooling segment according to any one of claims 1 to 9. An unburned heated smoking system comprising the unburned heated smoking article according to claim 10 and a heating device for heating the tobacco-containing segment. The method of claim 11,
A non-combustion heated smoking system wherein the heating temperature by the heating device is 400° C. or less. The manufacturing method of the cooling segment in any one of Claims 1-9 provided with the process of manufacturing the said polymer coating paper by apply|coating the coating liquid containing the said polymer on the said paper.

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