JP2023116642A - Filter segment for non-combustion heating type flavor suction tool, non-combustion heating type flavor suction tool, and non-combustion heating type flavor suction system - Google Patents

Abstract

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

Description

TECHNICAL FIELD The present invention relates to a filter segment for a non-combustion heating flavor inhaler, a non-combustion heating flavor inhaler, and a non-combustion heating flavor inhalation system.

In recent years, non-combustion heating type flavor inhalers that utilize heating instead of combustion have been developed as alternatives to combustion type flavor inhalers. A non-combustion heated flavor inhaler comprises a tobacco-containing segment that includes a tobacco filling that includes tobacco and an aerosol-generating substrate that generates an aerosol upon heating. In addition, the non-combustion heating type flavor inhaler can further include a cooling segment for cooling the vaporized aerosol-generating base material to generate an aerosol, a filter segment, and the like (Patent Documents 1 to 3). When using the non-combustion heating type flavor inhaler, the aerosol is inhaled together with the flavor component such as nicotine.

Patent No. 5877618 Japanese Patent Application Publication No. 2018-530318 WO2019/123048

In order to increase the amount of aerosols and flavoring components supplied to the user, the present inventors reduce the ventilation resistance in the filter segment to improve the user's sense of smoke volume and tobacco. reduced the filterability of Then, although the amount of aerosol and flavor component supplied to the user increases, the ratio of the aerosol to the flavor component (aerosol/flavor component) decreases, and the user may feel irritation.

The present invention provides a filter segment for a non-combustion heating type flavor inhalation device that can increase the ratio of aerosol to flavor components, and a non-combustion heating type flavor inhalation device and a non-combustion heating type flavor inhalation system comprising the filter segment. aim.

A filter segment for a non-combustion heating type flavor inhalation device according to the present invention is a filter segment for a non-combustion heating type flavor inhalation device filled with a sheet, and the filter segment contains an acid.

A non-combustion-heating flavor inhaler according to the present invention comprises a tobacco-containing segment and the filter segment for the non-combustion-heating flavor inhaler.

A non-combustion heating flavor inhalation system according to the present invention includes the non-combustion heating flavor inhalation device and a heating device that heats the tobacco-containing segment.

According to the present invention, there are provided a filter segment for a non-combustion heating type flavor inhalation device that can increase the ratio of aerosol to flavor components, and a non-combustion heating type flavor inhalation device and a non-combustion heating type flavor inhalation system comprising the filter segment. be able to.

FIG. 2 is a schematic diagram showing an example of a filter segment for a non-combustion heating type flavor inhaler according to the present embodiment. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing an example of a non-combustion heating type flavor inhaler according to a first embodiment of the present invention; Fig. 2 is a cross-sectional view showing an example of a non-combustion heating type flavor inhaler according to a second embodiment of the present invention; An example of the non-combustion heating type flavor inhalation system according to the present embodiment, in which (a) the state before the non-combustion heating type flavor inhalation device is inserted into the heating device, and (b) the non-combustion heating type flavor inhalation device is heated. It is a schematic diagram which shows the state which inserts into an apparatus and heats.

[Filter segment for non-combustion heating type flavor inhaler]
A filter segment for a non-combustion heating type flavor inhaler (hereinafter also referred to as a filter segment) according to the present embodiment is a filter segment filled with a sheet, and the filter segment contains an acid. Since the filter segment contains an acid, when the aerosol and flavor component pass through the filter segment, a base component such as nicotine contained in the flavor component interacts with the acid and is selectively captured by the filter segment. The selective entrapment of flavorants in the filter segments can increase the aerosol/flavorant ratio and reduce irritation when delivered to the user. The flavor component preferably includes a base component, more preferably an alkaloid such as nicotine.

In particular, it is preferred that the sheet packed in the filter segment contain the acid inside the sheet. For example, the acid can be present inside a sheet such as paper, and by containing the acid inside the sheet in this way, a sufficient amount of the acid is stably disposed in the filter segment, and the acid and the base component are mixed. The contact efficiency of the sheet is improved, and the flavor component can be captured on the sheet more efficiently. In addition to the sheet, the acid may be contained in, for example, a cylindrical wrapper that wraps the sheet, or an adhesive such as glue that is used to bond both ends of the wrapper when forming the wrapper into a cylindrical shape. . It should be noted that the filter segment according to this embodiment can be arranged downstream (mouthpiece side) of the tobacco-containing segment, which includes the tobacco and the aerosol-generating substrate.

(sheet)
Although the sheet is not particularly limited in this embodiment, it is preferably a sheet that can contain acid therein. For example, it is preferable that the sheet is porous, so that the acid can be retained in the pores. In particular, even when the acid is liquid at room temperature, as will be described later, the liquid acid can be retained in the pores, and leakage of the acid to the outside of the sheet can be suppressed. Examples of such sheets include wet-laid nonwoven fabrics and dry-laid nonwoven fabrics made mainly of naturally-derived or synthetic short fibers, and specific examples include paper, nonwoven fabrics, and the like. Also included are films having an open pore structure such as foamed polymer films, and specific examples include foamed polyolefin films and foamed polyurethane films. Among these, the sheet is preferably paper from the viewpoint of its affinity with acid and excellent ability to retain acid. Examples of paper include glassine paper, paraffin paper, coated paper, and impregnated paper. The sheet itself may or may not have air permeability (breathability). From the viewpoint of not increasing the aerosol removal rate, it is preferable that there is no air permeability or that air permeability is low. .

The thickness of the sheet is preferably 20-120 μm, more preferably 30-80 μm. When the thickness of the sheet is 30 μm or more, a sufficient amount of acid can be retained inside the sheet. Moreover, since the thickness of the sheet is 80 μm or less, sufficient ventilation resistance can be secured in the filter segment.

When the sheet is paper, the basis weight of the paper is preferably 20-120 g/m ² , more preferably 30-80 g/m ² . When the basis weight is 30 g/m ² or more, a sufficient amount of acid can be retained inside the paper. Further, when the basis weight is 80 g/m ² or less, sufficient air permeability can be ensured in the filter segment.

The sheet is filled in the filter segment, but the filling form is not particularly limited. For example, as described later, a plurality of folding lines (also called crimps or crepes) may be provided in the axial direction of the filter segment, gathered while being folded along the folding lines, and placed in the wrapper of the filter segment. In this case, the interval between the polygonal lines is not particularly limited, but can be, for example, 0.5 to 2 mm.

(acid)
The acid used in this embodiment is not particularly limited, but an edible acid can be used, for example, an organic acid. In particular, it is preferred that the acid is liquid at 15-25° C., that is, at room temperature. This is because the acid is a liquid at normal temperature, so that the acid can be directly applied to the sheet or wrapper without being dissolved in a solvent such as water. In addition, since the acid is retained in the liquid state inside the sheet or wrapper, the acid is evenly distributed inside the sheet or wrapper, and the contact efficiency between the acid and the flavoring ingredient is improved. or a wrapper.

Examples of acids include stearic acid, isostearic acid, linoleic acid, oleic acid, palmitic acid, myristic acid, dodecanoic acid, capric acid, benzoic acid, isobutyric acid, propionic acid, adipic acid, acetic acid, vanillylmandelic acid, maleic acid, glutaric acid, fumaric acid, succinic acid, lactic acid, glycolic acid, glutamic acid and the like. Among these, acids that are liquid at 15 to 25° C. include, for example, isostearic acid, linoleic acid, oleic acid, isobutyric acid, propionic acid, acetic acid, and lactic acid. These acids may be used alone or in combination of two or more. Among these, lactic acid is preferable as the acid from the viewpoints of being inexpensive, having little odor, and having little effect on flavor.

When acid is contained inside the sheet, the amount of acid contained in the sheet is preferably 1 to 20% by mass, more preferably 2 to 15% by mass, more preferably 4 to 4%. More preferably, it is 12% by mass. When the amount of the acid is 1% by mass or more, the flavor component can be sufficiently trapped in the sheet. In addition, when the amount of the acid is 20% by mass or less, it is possible to suppress the acid from oozing out of the sheet.

When the acid is present inside the sheet or wrapper, the method for incorporating the acid inside the sheet or wrapper is not particularly limited. method, a method of immersing a porous sheet or wrapper in a liquid acid, a method of impregnating a granular support such as granular activated carbon and then adding it to the sheet, a method of impregnating activated carbon fibers and then including activated carbon fibers in the sheet etc.

(Configuration of filter segment)
The filter segment according to the present embodiment can contain an acid by filling a tubular member with a sheet. An example of a filter segment according to this embodiment is shown in FIG. Filter segment 1 shown in FIG. The sheet 2 has a plurality of folding lines in the axial direction of the filter segment 1, that is, in the horizontal direction in FIG. The grooves formed by said gathers extend in the axial direction of the filter segment 1 . By filling the sheet 2 in the filter segment 1 in this way, it is possible to increase the surface area of the sheet 2 while maintaining the permeability of the aerosol and the flavor component in the axial direction of the filter segment 1, thereby increasing the flavor component. can be efficiently and selectively captured on the sheet 2.

The ventilation resistance per segment of the filter segment is preferably 2.5 mmH ₂ O/mm or less, more preferably 0.1 to 2.0 mmH ₂ O/mm, and 0.2 to 1.5 mmH _{2 .} O/mm is more preferred, and 0.2 to 0.5 mmH ₂ O/mm is particularly preferred. When the ventilation resistance is 2.5 mmH ₂ O/mm or less, the amount of aerosol and flavor component supplied to the user can be increased. In addition, as described above, the ratio of the aerosol to the flavor component (aerosol/flavor component) is lowered along with this, but since the filter segment in the present embodiment contains acid, the decrease in the ratio can be suppressed. The airflow resistance can be appropriately changed depending on the filling density, material, etc. of the sheet filled in the filter segment. The airflow resistance is a value measured by an airflow resistance measuring instrument (trade name: SODIMAX, manufactured by SODIM).

The packing density of the sheet in the filter segment is preferably 1 mg/mm ³ or less, more preferably 0.3-0.8 mg/mm ³ , and 0.4-0.7 mg/mm ³ . It is even more preferable to have When the packing density is 1 mg/mm ³ or less, the ventilation resistance tends to be 2.5 mmH ₂ O or less.

Although the shape of the filter segment is not particularly limited, it can be columnar, for example. When the filter segment is columnar, the circumference of the filter segment is preferably 16 to 25 mm, more preferably 20 to 24 mm, even more preferably 21 to 23 mm. The axial length of the filter segment is preferably 4 to 30 mm, more preferably 5 to 15 mm, even more preferably 5 to 12 mm. The cross-sectional shape of the filter segment is not particularly limited, and may be, for example, circular, elliptical, polygonal, or the like.

[Non-combustion heating type flavor suction device]
The non-combustion heating type flavor inhalation device according to the present embodiment (hereinafter also referred to as the flavor inhalation device) may include a tobacco-containing segment and the non-combustion heating type flavor inhalation device filter segment according to the present embodiment. can. Since the flavor inhaler according to this embodiment includes the filter segment according to this embodiment, it is possible to increase the ratio of the aerosol to the flavor component. The filter segment according to this embodiment can be arranged downstream (mouthpiece side) of the tobacco-containing segment. The flavor inhaler according to this embodiment may have segments other than the tobacco-containing segment and the filter segment according to this embodiment.

From the viewpoint of delivering a sufficient amount of aerosol, it is preferable that the flavor inhaler according to this embodiment further include a cooling segment between the tobacco-containing segment and the filter segment according to this embodiment. In the cooling segment, the tobacco-containing segment is heated and volatilized flavor component and aerosol-generating substrate are cooled and partially liquefied (aerosolized). The cooling segment contains a single free-flow channel, i.e., one axial channel without multiple channels, from the standpoint that it does not remove too much flavorant and aerosol-generating substrate. preferable. For example, the cooling segment can be a tubular member having perforations on its circumference. In addition, the cooling segment contains multiple free-flow channels, i.e., has multiple channels in the axial direction, which increases the contact area, resulting in a high cooling effect on the flavor component and the aerosol-generating substrate with a short segment length. It is preferable from the point of view.

(First embodiment)
An example of the flavor inhaler according to the first embodiment of the present invention is shown in FIG. The flavor inhaler 4 shown in FIG. 2 comprises a tobacco-containing segment 5 and a mouthpiece segment 8 . The mouthpiece segment 8 comprises a first cooling segment 6 , a filter segment 1 according to this embodiment and a first center hole segment 7 . During use, the tobacco-containing segment 5 is heated and suction is applied through the end of the first center hole segment 7 . The position of the filter segment 1 is not limited to the position shown in FIG. 2, and for example, the positions of the filter segment 1 and the first center hole segment 7 may be exchanged. Also, in the flavor inhaler 4 shown in FIG. 2, the first center hole segment 7 may be omitted.

The tobacco-containing segment 5 has a tobacco filling 9 containing tobacco and an aerosol-generating substrate, and a tubular first wrapper 10 covering the tobacco filling 9 . The tobacco filling 9 may further contain a volatile flavor component, water, and the like. 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.

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 appropriately blended and used to achieve 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 an appropriate 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 9 is not particularly limited, but is usually 250 mg/cm ³ or more, preferably 320 mg/cm ³ or more, from the viewpoint of ensuring the performance of the flavor inhaler 4 and imparting a 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 9 in the tobacco-containing segment 5 is 200 to 400 mg per tobacco-containing segment 5 in the case of the tobacco-containing segment 5 having a circumference of 22 mm and a length of 20 mm. , 250-320 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), 1,3-butanediol, triethyl citrate (TEC), and the like. One of these aerosol-generating substrates may be used, or two or more thereof may be used in combination. The amount of aerosol-generating substrate contained in the tobacco filling 9 can be, for example, 10-30% by weight with respect to 100% by weight of the tobacco filling 9 .

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. These volatile perfume components may be used singly or in combination of two or more.

The method of filling the tobacco filling 9 into the first wrapper 10 is not particularly limited. may be filled. If the shape of the tobacco has a longitudinal direction, such as a rectangular shape, the tobacco may be packed such that the longitudinal direction is in an unspecified direction within the first wrapper 10, and the axis of the tobacco-containing segment 5 The filling may be aligned in a direction or a direction perpendicular to the axial direction. By heating the tobacco-containing segment 5, the tobacco components and aerosol-generating substrate contained in the tobacco filling 9 are vaporized and transferred to the mouthpiece segment 8 by suction.

The first cooling segment 6 consists of a first tubular member 11 . The first tubular member 11 can be, for example, a paper tube formed by processing cardboard into a cylindrical shape. The first cylindrical member 11 and a mouthpiece lining paper 16, which will be described later, are provided with perforations 12 penetrating both. Due to the presence of the perforations 12, ambient air is introduced into the first cooling segment 6 during suction. As a result, the tobacco-containing segment 5 is heated, and the vaporized volatile component comes into contact with the outside air, and its temperature decreases, liquefying to form an aerosol. The diameter (spanning length) of the perforations 12 is not particularly limited, but can be, for example, 0.5 to 1.5 mm. The number of perforations 12 is not particularly limited, and may be one or two or more. For example, the perforations 12 may be provided multiple times around the circumference of the first cooling segment 6 .

The first center hole segment 7 is composed of a filling layer 13 having a hollow portion and an inner plug wrapper 14 covering the filling layer 13 . The filling layer 13 can be, for example, a rod filled with cellulose acetate fibers at a high density and hardened by adding a plasticizer containing triacetin in an amount of 6 to 20% by weight based on the weight of the cellulose acetate. The diameter of the hollow portion can be 1.0 to 5.0 mm. Since the filling layer 13 has a high packing density of fibers, air and aerosol flow only through the hollow portion during suction, and hardly flow inside the filling layer 13 . As a result, the aerosol filterability of the first center hole segment 7 can be reduced. In addition, although the hollow part is provided in the filling layer 13 in FIG. 2, the hollow part may not be provided in this embodiment. That is, a segment composed of a normal acetate filter may be arranged instead of the first center hole segment.

The filter segment 1 and the first center hole segment 7 are connected by an outer plug wrapper 15 . The outer plug wrapper 15 can be, for example, a cylinder of paper. The tobacco-containing segment 5 , the first cooling segment 6 , the connected filter segment 1 and the first center hole segment 7 are connected by mouthpiece lining paper 16 . These connections can be made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper 16, inserting the three segments, and winding them.

The length of the flavor suction device 4 according to the present embodiment in the axial direction, that is, the horizontal direction in FIG. is more preferable. The circumference of the flavor inhaler 4 according to this embodiment is preferably 16 to 25 mm, more preferably 20 to 24 mm, even more preferably 21 to 23 mm. For example, the length of the tobacco-containing segment 5 is 20 mm, the length of the first cooling segment 6 is 20 mm, the length of the filter segment 1 is 8 mm, and the length of the first center hole segment 7 is 7 mm. be able to. The length of each of these segments can be appropriately changed according to manufacturability, required quality, and the like.

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

The axial length of the flavor inhaler 4 according to the present embodiment, ie, the horizontal length in FIG. 3 is not particularly limited, but is preferably 40 to 65 mm, more preferably 45 to 60 mm. The circumference of the flavor inhaler 4 according to this embodiment is preferably 16 to 25 mm, more preferably 18 to 23 mm. For example, the tobacco-containing segment 5 has a length of 12 mm, the second center hole segment 17 has a length of 8 mm, the second cooling segment 18 has a length of 18 mm, and the filter segment 1 has a length of 7 mm. be able to. The length of each of these segments can be appropriately changed according to manufacturability, required quality, and the like.

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

An example of the flavor suction system according to this embodiment is shown in FIG. The flavor suction system shown in FIG. 4 includes a flavor suction device 4 according to this embodiment and a heating device 22 that heats tobacco-containing segments of the flavor suction device 4 from the outside. 4(a) shows the state before the flavor suction device 4 is inserted into the heating device 22, and FIG. 4(b) shows the state where the flavor suction device 4 is inserted into the heating device 22 and heated. A heating device 22 shown in FIG. 4 includes a body 23 , a heater 24 , a metal tube 25 , a battery unit 26 and a control unit 27 . The body 23 has a cylindrical recess 28, and a heater 24 and a metal tube 25 are arranged on the inner side surface of the recess 28 at a position corresponding to the tobacco-containing segment of the flavor inhaler 4 inserted into the recess 28. ing. The heater 24 can be a heater based on electric resistance, and electric power is supplied from the battery unit 26 according to an instruction from the control unit 27 for temperature control, and the heater 24 is heated. The heat emitted from the heater 24 is transferred to the tobacco-containing segment of the flavor inhaler 4 through the metal pipe 25 with high thermal conductivity. In FIG. 4(b), there is a gap between the outer circumference of the flavor sucking device 4 and the inner circumference of the metal tube 25 because it is schematically illustrated, but in reality, the gap is for the purpose of efficiently transferring heat. It is desirable that there is no gap between the outer circumference of the flavor suction device 4 and the inner circumference of the metal tube 25 . Although the heating device 22 heats the tobacco-containing segment of the flavor inhaler 4 from the outside, it may heat the 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 embodiment will be described in more detail with reference to Examples, but the present embodiment is not limited to these Examples.

[Example 1]
(Preparation of filter segment)
Glassine paper (trade name: extra-thick white glassine, 8 mm×180 mm, basis weight: 40 g/m ² , thickness: 40 μm) was linearly folded at intervals of 1 mm in width in the short direction. Lactic acid was applied to the glassine paper by spraying. The content of lactic acid in the glassine paper was 8 mg (12.2% by mass). The glassine paper was folded into a bellows shape along the fold line, gathered, and filled in a paper wrapper to form a cylindrical filter segment having a circumference of 21.4 mm and an axial length of 8 mm. manufactured. The packing density of the glassine paper in the filter segment was 0.62 mg/mm ³ . Moreover, the ventilation resistance of the filter segment was 0.37 mmH ₂ O/mm. The airflow resistance was measured with an airflow resistance measuring instrument (trade name: SODIMAX, manufactured by SODIM).

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

In this example, a flavor inhaler having the configuration shown in FIG. 2 was produced by replacing the center hole segment on the tobacco-containing segment side of the commercially available flavor inhaler with the filter segment produced by the above method. In the flavor inhaler, the length of the tobacco-containing segment 5 is 20 mm, the length of the first cooling segment 6 is 20 mm, the length of the filter segment 1 is 8 mm, and the length of the first center hole segment 7 is 7 mm. there were. Tobacco-containing segment 5 contained tobacco and glycerin as an aerosol-generating substrate.

(evaluation)
In order to evaluate the amount of flavor component and aerosol supplied to the user at the time of use, and the ratio of the aerosol to the flavor component, the supplied amounts of nicotine and glycerin, which are representative components of the flavor component, were measured. Specifically, evaluation was performed by the following methods.

A Glass Fiber Filter (trade name: Cambridge Filter 44 mm, manufactured by Borgwaldt) was placed immediately after the mouth end of the flavor inhaler thus produced. Using a heating device (trade name: Ploom S, manufactured by Japan Tobacco Inc.) compatible with the commercially available flavor inhaler, the tobacco-containing segment of the flavor inhaler was heated at 240° C. and sucked. The sucking condition was set to 55 ml/2 seconds per puff (1 puff was taken at intervals of 30 seconds, i.e., sucking for 2 seconds and waiting for 28 seconds), and a total of 8 puffs were performed, referring to the HCI Law (Canadian Compulsory Smoking Condition Law). Ta. The amount of glycerin and nicotine trapped in the Glass Fiber Filter for each puff was quantified. Specifically, the collected components were extracted with 10 ml of isopropanol (IPA) as an extraction solvent with shaking at 200 rpm for 20 minutes. The obtained extract was analyzed by GC under the following conditions, and the amounts of glycerin and nicotine were quantified for each puff.

Inlet temperature: 240°C
Oven temperature: Hold at 150°C for 1.3 minutes, then heat up to 240°C at 70°C/min and hold for 5 minutes Column: Trade name: DB-WAX 10m × 0.18mm × 0.18μm, manufactured by Agilent Detection Instrument: FID

Table 1 shows the amount of glycerin, the amount of nicotine, and the ratio of the amount of glycerin to the amount of nicotine (G/Ni) in the total of 8 puffs. In Table 1, segment A indicates the segment positioned second from the mouth end side, and segment B indicates the segment positioned closest to the mouth end side.

[Comparative Example 1]
A filter segment was produced in the same manner as in Example 1, except that the glassine paper was not coated with lactic acid. Using the filter segment, a flavor inhaler was produced in the same manner as in Example 1 and evaluated. Table 1 shows the results.

[Comparative Example 2]
In Example 1, the commercially available flavor inhaler was evaluated in the same manner as in Example 1 without replacing the center hole segment with the filter segment. Table 1 shows the results.

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

As shown in Table 1, Example 1 exhibited a high G/Ni value because the flavor suction device was equipped with a filter segment containing acid. On the other hand, in Comparative Examples 1 and 2, the G/Ni values were lower than in Example 1 because the flavor inhaler did not include the filter segment. Although the flavor inhaler of Reference Example 1 showed a high G/Ni value, the amount of glycerin and the amount of nicotine were smaller than those of Example 1 due to high airflow resistance, and Example 1 had a higher amount of glycerin and nicotine. , was balanced with the G/Ni value.
The present invention includes the following embodiments.
[1] A filter segment for a non-combustion heating type flavor inhaler filled with a sheet,
A filter segment for a non-combustion heated flavor inhaler, wherein the filter segment contains an acid.
[2] The filter segment for a non-combustion heating type flavor inhaler according to [1], wherein the sheet contains an acid inside the sheet.
[3] The filter segment for a non-combustion heating type flavor inhaler according to [2], wherein the amount of the acid contained in the sheet is 1 to 20% by mass with respect to the mass of the sheet.
[4] The filter segment for a non-combustion heating type flavor inhaler according to any one of [1] to [3], which has an airflow resistance of 2.5 mmH ₂ O/mm or less.
[5] The filter segment for a non-combustion heating type flavor inhaler according to any one of [1] to [4], wherein the sheet is porous.
[6] The filter segment for a non-combustion heating type flavor inhaler according to any one of [1] to [5], wherein the sheet is a wet nonwoven fabric or a dry nonwoven fabric.
[7] The filter segment for a non-combustion heating type flavor inhaler according to [6], wherein the sheet is paper.
[8] The filter segment for a non-combustion heating type flavor inhaler according to any one of [1] to [7], wherein the acid is liquid at 15 to 25°C.
[9] The filter segment for a non-combustion heating type flavor inhaler according to any one of [1] to [8], wherein the acid is an organic acid.
[10] The filter segment for a non-combustion heating type flavor inhaler according to [9], wherein the acid is lactic acid.
[11] a tobacco-containing segment;
A filter segment for a non-combustion heating type flavor inhaler according to any one of [1] to [10];
A non-combustion heated flavor inhaler.
[12] The non-combustion heating type flavor inhaler according to [11], further comprising a cooling segment between the tobacco-containing segment and the non-combustion heating type filter segment for the non-combustion heating type flavor inhalation device.
[13] The non-combustion heating flavor inhaler of [12], wherein the cooling segment includes a single free flow channel.
[14] The non-combustion heating flavor inhaler according to [13], wherein the cooling segment is a tubular member having perforations.
[15] The non-combustion heating flavor inhaler according to any one of [1] to [14], wherein the tobacco-containing segment comprises tobacco and an aerosol-generating base material.
[16] The non-combustion heating type flavor inhaler according to [15], wherein the aerosol-generating base material is at least one selected from the group consisting of glycerin, propylene glycol, 1,3-butanediol and triethyl citrate.
[17] The non-combustion heating type flavor suction device according to any one of [11] to [16];
a heating device for heating the tobacco-containing segment;
A non-combustion heated flavor suction system.

1 Filter Segment 2 Sheet 3 Wrapper 4 Flavor Inhaler 5 Tobacco Containing Segment 6 First Cooling Segment 7 First Center Hole Segment 8 Mouthpiece Segment 9 Tobacco Filling 10 First Wrapper 11 First Tubular Member 12 Perforation 13 Filling layer 14 Inner plug wrapper 15 Outer plug wrapper 16 Mouthpiece lining paper 17 Second center hole segment 18 Second cooling segment 19 Second cylindrical member 20 Film 21 Second wrapper 22 Heating device 23 Body 24 Heater 25 metal tube 26 battery unit 27 control unit

Claims (14)

a tobacco-containing segment;
a filter segment for a non-combustion heating type flavor inhaler filled with a sheet;
a cooling segment disposed between the tobacco-containing segment and the filter segment;
A non-combustion heating flavor inhaler comprising
the filter segment comprises an acid;
A non-combustion heated flavor inhaler, wherein said cooling segment is a tubular member having perforations. 2. The non-combustion heating flavor inhaler according to claim 1, wherein said sheet contains an acid inside said sheet. 3. The non-combustion heating type flavor inhaler according to claim 2, wherein the amount of said acid contained in said sheet is 1 to 20% by mass with respect to the mass of said sheet. The non-combustion heating type flavor inhaler according to any one of claims 1 to 3, wherein the airflow resistance of the filter segment is 2.5 _mmH2O /mm or less. The non-combustion heating type flavor inhaler according to any one of claims 1 to 4, wherein the sheet is porous. The non-combustion heating type flavor inhaler according to any one of claims 1 to 5, wherein the sheet is a wet nonwoven fabric or a dry nonwoven fabric. 7. The non-combustion heating type flavor inhaler according to claim 6, wherein said sheet is paper. The non-combustion heating type flavor inhaler according to any one of claims 1 to 7, wherein the acid is liquid at 15 to 25°C. The non-combustion heating type flavor inhaler according to any one of claims 1 to 8, wherein the acid is an organic acid. The non-combustion heating flavor inhaler according to claim 9, wherein said acid is lactic acid. A non-combustion heated flavor inhaler according to any one of claims 1 to 10, wherein said cooling segment comprises a single free flow channel. 12. The non-combustion heating flavor inhaler according to any one of claims 1 to 11, wherein the tobacco-containing segment comprises tobacco and an aerosol-generating substrate. 13. The non-combustion heating flavor inhaler according to claim 12, wherein the aerosol-generating base material is at least one selected from the group consisting of glycerin, propylene glycol, 1,3-butanediol and triethyl citrate. The non-combustion heating type flavor inhaler according to any one of claims 1 to 13;
a heating device for heating the tobacco-containing segment;
A non-combustion heated flavor suction system.