WO2022259505A1

WO2022259505A1 - Flavor source-containing rod comprising cap member at tip end

Info

Publication number: WO2022259505A1
Application number: PCT/JP2021/022248
Authority: WO
Inventors: 弘四分一
Original assignee: 日本たばこ産業株式会社
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-12-15
Also published as: EP4353092A1; CN117396084A; US20240099361A1; JPWO2022259505A1; KR20240004757A

Abstract

Provided is a flavor source-containing rod comprising a cap member at a tip end that is opposite of a mouthpiece end and a flavor source-filled object downstream of the cap member, wherein the cap member includes a natural fiber-containing sheet and the sheet is disposed such that a main surface thereof is roughly parallel to the longitudinal direction of the flavor source-containing rod.

Description

Flavor source-containing rod having a cap member at the tip

The present invention relates to a flavor source-containing rod having a cap member at its tip.

A non-combustion heating type flavor sucking article that sucks aerosol generated by heating a tobacco rod is known. In order to prevent the aerosol-forming substrate from being released from the tobacco rod, such as during transportation of the flavor inhalation article, it has been proposed to provide a forward plug at the tip of the tobacco rod (Patent Document 1).

Patent No. 6227555

Flavor source-containing rods such as tobacco rods require channels as air flow paths, but preferably have a plurality of relatively small diameter channels in order to obtain a satisfactory flavor and taste. Unnecessary channel formation should be avoided, since unintentional formation of large diameter channels will result in an unsatisfactory flavor and taste. Non-combustion heating type flavor inhalation articles include an internal heating type in which a heater is inserted into the tobacco rod for heating, and an external heating type in which a heater is arranged around the tobacco rod for heating. In the case of the internal heating type, it is necessary that the heater be easily inserted into the cap member provided at the tip of the tobacco rod, from the viewpoint of feeling during use. Furthermore, the insertion of the heater should avoid the formation of unwanted channels in the tobacco rod. In the case of the external heating type, the tobacco rod may be deformed by contact with the heaters arranged around it. should be avoided from forming. Regarding these points, there is room for improvement in conventional non-combustion heating type flavor inhalation articles. In view of such circumstances, an object of the present invention is to provide a flavor source-containing rod having a cap member at the tip thereof, which can provide excellent usability and flavor.

The inventors have found that a cap member with relatively small diameter channels and not containing excessively large diameter channels solves the above problems. That is, the above problems are solved by the present invention described below.
Aspect 1
A flavor source-containing rod comprising a cap member at the tip opposite the mouthpiece end and a flavor source filling downstream thereof,
The flavor source-containing rod, wherein the cap member includes a natural fiber-containing sheet, the main surface of which is arranged substantially parallel to the longitudinal direction of the flavor source-containing rod.
Aspect 2
Aspect 1. The flavor source-containing rod of aspect 1, wherein the sheet comprises a dry-laid nonwoven or a wet-laid nonwoven.
Aspect 3
3. The flavor source-containing rod according to

aspect

1 or 2, wherein the cap member comprises a wrapper, and the wrapper is filled with the sheet.
Aspect 4
The flavor source-containing rod according to aspect 3, wherein the sheet is a dry nonwoven fabric, and the compressibility (A) of the dry nonwoven fabric filled inside the wrapper calculated by the following method is 20% or more and less than 100%. .
[Method for calculating compression ratio (A)]
Cross-sectional area (A1): the cross-sectional area of the dry nonwoven fabric in a plane perpendicular to the axial direction of the cap member, measured by removing the wrapper of the cap member and taking out the dry nonwoven fabric Cross-sectional area (A2): the axis of the cap member Cross-sectional area inside the cap member in a plane perpendicular to the direction Compression rate (A) (%) = (cross-sectional area (A2) / cross-sectional area (A1)) x 100
Aspect 5
The flavor source-containing rod according to aspect 3 or 4, wherein the sheet is a dry nonwoven fabric, and a plurality of dry nonwoven fabrics are stacked, folded into an S-shape, and compressed to fill the inside of the wrapper. .
Aspect 6
The sheet is a dry nonwoven fabric that has been subjected to gather processing,
One processed dry nonwoven fabric is folded, or a plurality of processed dry nonwoven fabrics are stacked and folded to fill the inside of the wrapper and provided by the gathering process 5. The flavor source-containing rod according to aspect 3 or 4, wherein the ridgeline is substantially parallel to the axial direction of the cap member.
Aspect 7
The flavor source-containing rod according to any one of aspects 2 to 6, wherein no gaps are visible between the dry nonwoven fabrics on the axial end face of the cap member.
Aspect 8
The flavor according to

aspect

2 or 3, wherein the sheet is a wet-laid nonwoven fabric, and the volume occupancy (X) of the wet-laid nonwoven fabric filled inside the wrapper, calculated by the following method, is 10% or more and less than 60%. Source containing rod.
[Calculation method of volume occupation ratio (X)]
Cross-sectional area (X1): total area of the wet-laid nonwoven fabric in the cross section perpendicular to the axial direction of the cap member Cross-sectional area (X2): cross-sectional area inside the cap member in the cross section perpendicular to the axial direction of the cap member Volume occupation ratio (X ) (%) = (cross-sectional area (X1)/cross-sectional area (X2)) x 100
Aspect 9
The sheet is a wet-laid nonwoven fabric that has been subjected to gathered processing,

Aspects

2 and 3, wherein the processed dry nonwoven fabric is folded and filled inside the wrapper, and the ridgeline provided by the gathering process is substantially parallel to the axial direction of the cap member. , or the flavor source-containing rod according to 8.
Aspect 10
The flavor source-containing rod according to any one of aspects 1 to 9, wherein the natural fiber is at least one fiber selected from the group consisting of silk, wool, cotton, hemp, and vegetable pulp.
Aspect 11
11. The flavor source-containing rod of aspect 10, wherein the natural fiber is vegetable pulp.
Aspect 12
The flavor source-containing rod according to any one of aspects 1 to 11, wherein the cap member has an airflow resistance of 2 to 30 mmH ₂ O.
Aspect 13
The flavor source-containing rod according to any one of aspects 1 to 12, further comprising the cap member at the downstream end of the flavor source fill.
Aspect 14
14. The flavor source-containing rod of any of aspects 1-13, wherein the flavor source filling comprises tobacco cuts, tobacco sheets, or tobacco granules.
Aspect 15
15. The flavor source-containing rod of any of aspects 1-14, wherein the flavor source fill comprises non-tobacco plant-derived material.
Aspect 16
16. The flavor source-containing rod of any of aspects 1-15, wherein the flavor source filling comprises a porous material made from non-tobacco plant fibers.
Aspect 17
17. The flavor source-containing rod of any of aspects 1-16, wherein the flavor source fill comprises a polysaccharide-derived material.
Aspect 18
A non-combustion heating flavor inhalation device comprising the flavor source-containing rod according to any one of aspects 1 to 17.

According to the present invention, it is possible to provide a flavor source-containing rod having a cap member at the tip end that can provide excellent usability and flavor.

Schematic diagram of non-combustion heating flavor inhaler Schematic diagram of another aspect of the non-combustion heating type flavor inhaler Schematic diagram of still another embodiment of the non-combustion heating type flavor inhaler Conceptual diagram of the cap member Conceptual diagram of another aspect of the cap member Conceptual diagram of further another aspect of the cap member Conceptual diagram of the equipment used in the nonwoven fabric filling process Conceptual diagram of nonwoven fabric processing equipment Diagram explaining the process of cutting non-woven fabric A diagram for explaining the process of arranging the nonwoven fabric Diagram explaining the process of folding the non-woven fabric Diagram explaining the process of forming a non-woven fabric Diagram explaining the process of forming a non-woven fabric Conceptual diagram of non-combustion heating flavor suction system Conceptual diagram of non-combustion heating flavor suction system A diagram showing one aspect of a paper tube

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

Fig. 1A shows one aspect of the non-combustion heating type flavor inhaler. In the figure, 100 is a non-combustion heating type flavor inhaler, 1 is a flavor source-containing rod, 3 is a first mouthpiece segment, 5 is a second mouthpiece segment, and 7 is a third mouthpiece segment. Each segment will be described below with reference to the drawings.

1. Flavor Source Containing Rod The flavor source containing rod comprises a cap member 11 at the tip opposite the mouthpiece end and a flavor source fill 13 downstream thereof.
(1) Cap member The cap member 11 includes a natural fiber-containing sheet, and the sheet is arranged such that its main surface is substantially parallel to the longitudinal direction of the flavor source-containing rod. That is, the normal to the main surface of the sheet is perpendicular to the longitudinal direction (axial direction) of the flavor source-containing rod. FIG. 2 shows a conceptual diagram of this aspect. By arranging the sheet so that the main surface of the sheet is substantially parallel to the longitudinal direction of the flavor source-containing rod, channels are appropriately formed, and excellent usability and flavor can be obtained. Furthermore, the heater can be easily inserted by arranging the sheet as described above. The cap member 11 may be provided with a wrapper and the sheet may be filled in the wrapper (FIG. 2), or may be formed by bonding the sheets together without using the wrapper. The former mode is preferable from the viewpoint of ease of manufacture.

The axial length of the cap member 11 is preferably 6-20 mm, more preferably 6-10 mm. Its circumference (circumference) can be between 15 and 30 mm. Having an axial length within this range enables mass production of the cap member. On the other hand, if the length in the axial direction is less than the lower limit, the component volatilized from the flavor source filling is not trapped and leaks to the outside, which may cause the device to become dirty. If the length in the axial direction is too long, the ventilation resistance of the cap member itself increases, and the ventilation resistance of the non-combustion heating type flavor inhaler as a whole increases, making it difficult to inhale during use.

The cap member 11 can also be arranged at the downstream end of the flavor source-containing rod 1 in addition to the upstream end of the flavor source-containing rod 1 . The axial direction of the cap member 11 refers to a direction parallel to the longitudinal direction (axial direction) of the flavor source-containing rod when assembled as a flavor source-containing rod, and is the horizontal direction in FIG. By additionally arranging the cap member 11 at the downstream end of the flavor source-containing rod 1, it is possible to prevent the flavor source filling from spilling in the direction of the mouthpiece segment during transportation. Also, in the case of the internal heating type, it is possible to prevent the flavor source filling from spilling out in the direction of the mouthpiece segment when the heater is inserted inside the rod.

(1-1) Sheet The natural fiber-containing sheet 12 is preferably a sheet capable of constituting a cap member having relatively small diameter channels and not containing excessively large diameter channels. Specifically, the natural fiber-containing sheet 12 may be a woven fabric, a non-woven fabric, or a sheet comprising a polymer matrix and said fibers. A woven fabric is a fabric woven by processing fibers such as cotton and silk into threads. The thickness of the fabric is preferably 0.5-1.5 mm. A non-woven fabric is a sheet formed by bonding or entangling fibers without weaving them. Nonwoven fabrics are broadly classified into wet-laid nonwoven fabrics, which are made from fibers dispersed in a liquid medium, and dry-laid nonwoven fabrics, which are made without a liquid medium. The wet-laid nonwoven is for example paper and its thickness can be between 0.03 and 0.50 mm. The dry-laid nonwoven can have a thickness of 0.5 to 1.5 mm. Both woven, wet-laid, and dry-laid nonwovens contain natural fibers, but may additionally contain semi-synthetic or synthetic fibers, or liquid or solid additives.

In the present invention, the sheet 12 is preferably made of nonwoven fabric from the viewpoint of availability. Hereinafter, description will be made separately for the dry-laid nonwoven fabric and the wet-laid nonwoven fabric.
[Dry non-woven fabric]
Dry-laid nonwovens are suitable for being compressed and packed into wrappers. Therefore, in this embodiment, in particular, a plurality of the nonwoven fabrics 12 are stacked and compressed in an S-shaped folded state and filled in the wrapper 15 (FIG. 2A (1)), or a single nonwoven fabric 12 is folded and compressed and filled inside the wrapper 15, or a plurality of nonwoven fabrics 12 are stacked and compressed and filled inside the wrapper 15 (FIG. 2A(2)). preferable. In terms of appearance, it is preferable that no gaps are visible between the folded nonwoven fabrics on the end surface of the cap member 11 viewed from the axial direction. This is because the appearance is improved. Moreover, since the cap member 11 filled in this manner has a plurality of gaps between the nonwoven fabrics, there is an advantage that the heater can be easily inserted.

When a plurality of nonwoven fabrics 12 are filled inside the wrapper 15, the compressibility (A) of the nonwoven fabrics 12 is preferably 20% or more and less than 100%.
[Method for calculating compression ratio (A)]
Cross-sectional area (A1): the cross-sectional area of the dry nonwoven fabric in a plane perpendicular to the axial direction of the cap member, measured by removing the wrapper of the cap member and taking out the dry nonwoven fabric Cross-sectional area (A2): the axis of the cap member Cross-sectional area inside the cap member in a plane perpendicular to the direction Compression rate (A) (%) = (cross-sectional area (A2) / cross-sectional area (A1)) x 100

The lower the value of the compressibility (A), the more strongly the dry-laid nonwoven fabric is compressed. The compressibility (A) is preferably 20% or more and less than 100%, more preferably 30 to 80%, still more preferably 45 to 70%. When the compressibility (A) is within this range, an increase in airflow resistance of the cap member 11 can be moderately suppressed. The cross-sectional area (A1) is the area of a figure (substantially circular) formed by projecting the columnar body formed of the nonwoven fabric onto a plane perpendicular to the axial direction after removing the wrapper. Since the nonwoven is released from compressive forces when the wrapper is removed, the area of the graphic formed by the nonwoven is usually greater than the area of the graphic when the wrapper was filled. The cross-sectional area (A1) is measured by the following method. First, the cap member 11 is left at 22° C. and a relative humidity of 60% for 24 hours, then the wrapper of the cap member 11 is removed and the non-woven fabric is taken out. Next, the cross section of the nonwoven fabric is photographed with a microscope, and the vertical and horizontal lengths are evaluated on the operation monitor to calculate the cross sectional area (A1). The cross-sectional photographing of the nonwoven fabric can be performed by cutting the cap member 11 at an arbitrary position in the axial direction. The cross-sectional area (A2) is obtained by measuring the outer circumference (circumference) of the cap member 11 with a filter circumference measuring machine (trade name: SODIMAX, manufactured by SODIM) and measuring the thickness of the wrapper with a paper thickness measuring machine. , calculated using these measurements.

The number of non-woven fabrics may be one. However, depending on the thickness of the non-woven fabric, the number of non-woven fabrics is preferably 1 to 7 from the viewpoint of good appearance and appropriate airflow resistance. In addition, in FIG. 2A(1), a plurality of nonwoven fabrics are folded in an S-shape and compressed and filled, but the non-woven fabric has a shape other than the S-shape, such as a spiral shape, an accordion shape, a gathered shape, or the like. It may be compressed and filled in the shape of In particular, it is preferable that the dry-laid nonwoven fabric is subjected to gather processing. It is preferable that one sheet of the processed dry nonwoven fabric is folded and filled inside the wrapper. Alternatively, it is preferable that a plurality of processed dry-laid nonwoven fabrics are stacked and folded and filled inside the wrapper. In these aspects, the ridgeline provided by the gathering process extends substantially parallel to the axial direction of the cap member.

Although the thickness of the nonwoven fabric 12 before filling in this embodiment is not particularly limited, it can be, for example, 0.5 to 1.5 mm. Although the basis weight of the nonwoven fabric 12 before filling is not particularly limited, it can be, for example, 35 to 60 g/m ² . The basis weight is measured according to JIS P 8124:2011.

The packing density of the nonwoven fabric 12 filled inside the wrapper 15 is preferably 50 to 150 mg/cm ³ , more preferably 60 to 150 mg/cm 3 from the viewpoint of easily achieving an airflow resistance suitable for sucking the above-described flavor component. 140 mg/cm ³ , more preferably 70 to 130 mg/cm ³ . For example, when the cap member 11 is cylindrical, and the weight of the nonwoven fabric is W (mg), the length in the axial direction is b (mm), and the circumference is c (mm), the packing density of the nonwoven fabric is expressed by the following formula: Calculated by
Packing density (mg/cm ³ ) = W/((b/10)*(((c/10/π/2) ² )*π))

Examples of natural fibers used for the sheet 12 include silk, wool, cotton, hemp, and vegetable pulp. These may be used alone or in combination of two or more. Since the cap member 11 exists near the heater, it is exposed to high heat. Therefore, it is preferable that natural fibers do not melt even when heated to about 350° C., or generate little volatile components. Cellulose acetate fibers used in filters typically melt at that temperature and also produce volatile components with odors that can affect the flavor emitted from the flavor source. In addition, the natural fiber is preferably a vegetable pulp from the viewpoints of higher dispersibility and degradability in the natural environment and easier adjustment of ventilation resistance suitable for inhalation of flavor components.

The roughness of the vegetable pulp is preferably 0.15 to 0.25 mg/m, more preferably 0.16 to 0.24 mg, from the viewpoint of more easily achieving an aeration resistance suitable for inhaling the flavor component. /m, more preferably 0.18 to 0.22 mg/m. The roughness is a value measured according to JIS P 8120:1998.

The sheet 12 may further contain chemical synthetic fibers as other fibers in addition to the natural fibers. Chemical synthetic fibers include, for example, acetate fiber, rayon fiber, polyamide fiber, acrylic fiber, polyurethane fiber, polylactic acid fiber, polyethylene fiber, polypropylene fiber, polyester fiber, polyethylene terephthalate fiber, polyvinyl alcohol fiber, polyvinyl acetate fiber, ethylene acetate fiber. Examples include vinyl copolymer fibers. These may be used alone or in combination of two or more. When the sheet contains the chemical synthetic fiber, the content of the chemical synthetic fiber in the sheet is preferably 50% by weight or less, more preferably 30% by weight or less.

[Wet-laid nonwoven fabric]
In this embodiment, as shown in FIG. 2B or 2C, it is preferable that the wet-laid nonwoven fabric 12 is randomly folded and filled inside the wrapper 15 in a shirred state. The ridgeline (bent line) is substantially parallel to the axial direction of the cap member. More preferably, the wet-laid nonwoven fabric 12 is gathered, folded at random so that the edges of the wet-laid nonwoven fabric 12 are substantially parallel to the axial direction of the cap member, and filled inside the wrapper 15 . Although there are gaps between the filled wet-laid nonwoven fabrics 12, the size of the gaps is preferably uniform. This is because it is possible to prevent the device from becoming dirty due to leakage of components volatilized from the flavor source filling to the outside without being trapped. The size of the gap is evaluated by the diameter when each gap is converted into a circle.

The wet-laid nonwoven fabric can use the natural fibers described above, and also the chemical synthetic fibers described above. However, in this embodiment, the wet-laid nonwoven 12 is preferably paper. In this case, the thickness is preferably 0.03-0.50 mm and the basis weight is preferably 40-400 g/m ² . From the viewpoint of more easily achieving airflow resistance suitable for sucking the flavor component, the volume occupancy [%] is 10% or more and less than 60%, preferably 20% or more and less than 60%, more preferably 20 to 40%. be. The volume occupation ratio is determined by the thickness and area of the wet-laid nonwoven fabric to be filled inside the cap member, and is specifically obtained by the following formula.

[Calculation method of volume occupation ratio (X)]
Cross-sectional area (X1): total area of the wet-laid nonwoven fabric in the cross section perpendicular to the axial direction of the cap member Cross-sectional area (X2): cross-sectional area inside the cap member in the cross section perpendicular to the axial direction of the cap member Volume occupation ratio (X ) (%) = (cross-sectional area (X1)/cross-sectional area (X2)) x 100

The cross-sectional area (X1) is the total area of the nonwoven fabric, and can be obtained from the product of the thickness and width of the nonwoven fabric 12 in FIG. 2C, for example. The width is the length parallel to the radial direction of the flavor source-containing rod when the sheet is flattened. A cross-sectional area (X2) is the area of the portion surrounded by the wrapper 15 .

The ventilation resistance of the cap member 11 is preferably 0 to 50 mmH ₂ O, more preferably 2 to 30 mmH ₂ O, regardless of the material used, from the viewpoint of suitability for inhalation of flavor components. The ventilation resistance is measured by a filter quality measuring instrument (product name: SODIMAX manufactured by SODIM). It is the differential pressure (mmH ₂ O) between both end surfaces of the sample when aspirated at a flow rate of ³ /sec.

(1-2) Wrapper As a material for the wrapper 15, paper or the like can be used, and a material having a basis weight of 20 to 120 g/m ² and a thickness of 30 to 150 μm can be used. By setting the basis weight to 20 g/m ² or more, it is difficult for the cylinder to stretch due to the repulsive force from the nonwoven fabric filled in the cylinder and cause the circumference to fluctuate. The air permeability of the wrapper is not particularly limited. U.S.A. The above highly air permeable paper and 100C. An embodiment using low air permeability paper of less than U can be mentioned. A sheet having a basis weight of 20 to 100 g/m ² and a thickness of 30 to 120 μm can also be used. Although not particularly limited, LPWS-OLL (air permeability 1300 CU, basis weight 26.5 g/m ² , thickness 48 μm) manufactured by Nippon Paper Papyria, P-10000C (air permeability 10000 CU, basis weight 24.0 μm). 0 g/m ² , thickness 60 μm), S-52-7000 (air permeability 7000 CU, basis weight 52.0 g/m ² , thickness 110 μm), or plain paper (air permeability 0 CU, tsubo amount 24 g/m ² , thickness 32 μm) can be exemplified. Multiple wrappers may be used.

(2) Flavor Source-Containing Segment As shown in FIG. 1 , the flavor source-containing segment 13 is a segment in which the flavor source filling 14 is cylindrically wrapped with a wrapper 17 . The flavor source-containing segment is preferably cylindrical. The circumferential length is preferably the same as that of the cap member 11, specifically 15 to 30 mm. The length in the axial direction (horizontal length on the paper surface) is preferably 6 to 70 mm, more preferably 10 to 30 mm.

(2-1) Flavor Source Filling The flavor source filling 14 is a flavor-generating material, and may include tobacco materials, non-tobacco materials, volatile flavoring ingredients, and water. Tobacco materials are flavor-producing materials derived from tobacco plants, and non-tobacco materials are flavor-producing materials that are not derived from tobacco plants. Flavor source fillings containing tobacco material are also referred to as "tobacco fillings", and flavor source fillings containing non-tobacco materials are also referred to as "non-tobacco fillings".

[Tobacco filling]
There are no restrictions on the size of the tobacco used as the tobacco filling or the preparation method thereof. For example, tobacco shreds, tobacco sheets, or tobacco granules can be used. As the cut tobacco, dried tobacco leaves cut into pieces having a width of 0.8 to 1.2 mm may be used. When it is chopped to the above width, the chopped length is about 5 to 20 mm. Also, the dried tobacco leaves are pulverized to have an average particle diameter of about 20 to 200 μm, and the homogenized product is processed into a sheet, which is cut into a width of about 0.8 to 1.2 mm and a length of about 2 to 4 mm. You can use anything else. Furthermore, the above-mentioned sheet-processed material may be gathered without being chopped and used as the filling material. Alternatively, a plurality of cylindrically shaped sheets may be arranged concentrically. Various types of tobacco can be used in the flavor source filling 14, whether dried tobacco leaves are chopped or pulverized and used as a uniform sheet. Yellow variety, burley variety, orient variety, native variety, and other Nicotiana tabacum and Nicotiana rustica varieties can be blended as appropriate to obtain the desired taste. Details of the tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Research Center, March 31, 2009".

There are multiple methods of pulverizing tobacco and processing it into uniform sheets. The first is a method of obtaining a paper-made sheet using a paper-making process, and the second is a method of mixing an appropriate solvent such as water and homogenizing, and then thinly casting the homogenized material on a metal plate or metal plate belt. and drying to obtain a cast sheet. The third method is to obtain a rolled sheet by mixing a suitable solvent such as water and homogenizing the mixture and extruding it 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 filler 14 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 non-combustion heating type flavor inhaler and imparting a good flavor. ³ or more, and usually 520 mg/cm ³ or less, preferably 420 mg/cm ³ or less. Specifically, the content of the flavor source filling in the tobacco-containing segment 13 is usually 200 to 450 mg, preferably 280 to 450 mg per tobacco-containing segment in the case of a tobacco-containing segment having a circumference of 22 mm and a length of 20 mm. 400 mg.

An aerosol-generating base material may be added in an amount of 10 to 50% by weight, preferably 15 to 30% by weight, based on the weight of tobacco raw materials such as leaf tobacco. The aerosol-generating substrate is a material that can generate an aerosol by heating, and examples thereof include, but are not limited to, glycerin, propylene glycol (PG), triethyl citrate (TEC), triacetin, 1,3-butanediol, and the like. These may be used alone or in combination of two or more.

Volatile flavor components are not particularly limited, and from the viewpoint of imparting good flavor, 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, ethyl oleate , ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3, (5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy -4-methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract, 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, inmoltel absolute, β - ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpeneless oil, licorice extract, linalool, linalyl acetate, lovage root oil, maltol , maple syrup, menthol, menthone, L-menthyl acetate, p-methoxybenzaldehyde, methyl-2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid , mimosa absolute, honey, myristic acid, nerol, nerolidol, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, ω-pentadecalactone , peppermint oil, petitgrain Paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaetol, 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, citric triethyl acid, 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, veratol Aldehyde, violet leaf absolute, tobacco plant (tobacco tobacco leaves, tobacco stems, tobacco flowers, tobacco roots, and tobacco seeds), with menthol being particularly preferred. Moreover, these volatile fragrance components may be used alone or in combination of two or more.

[Non-tobacco filling]
Non-tobacco plant-derived materials can be used as non-tobacco fillers. Non-tobacco plant-derived substances include herbal plants (mint, basil, thyme, cilantro, rosemary, parsley, fennel, lemongrass, cinnamon, etc.) or fragrant plants such as tea leaves. In addition, the plant may be selected from the list of "Natural Fragrance Source Substances" (2010 Dietary Table No. 337, Attachment 2). These plants can be dried, cut into widths of about 0.5 to 1.5 mm, chopped into lengths of about 5 to 20 mm, and packed in cylindrical wrappers in a randomly oriented manner. Alternatively, the minced meat may be packed in the wrapper such that the longitudinal direction of the minced meat is substantially parallel to the axial direction of the flavor source-containing segment. A plurality of plant types may be blended according to the target flavor and aroma.

A porous material made from non-tobacco plant fibers can be used as the non-tobacco filler. The porous material can be produced by the methods described for the dry-laid nonwoven fabric and the wet-laid nonwoven fabric. A flavor source, such as a perfume, is preferably added to the porous material. The porous material can be cut into a width of about 0.5 to 1.5 mm, cut into a chopped shape of about 5 to 20 mm in length, and randomly oriented and filled in a cylindrical wrapper. Alternatively, the chopped pieces may be filled in the wrapper such that the longitudinal direction of the chopped pieces is substantially parallel to the axial direction of the cap member. Alternatively, the sheet may be folded and packed in a cylindrical wrapper. At that time, it may be filled in a gathered shape (wrinkled state).

Polysaccharide-derived materials can be used as non-tobacco fillers. Materials derived from polysaccharides include polysaccharide thickeners (gellan gum, carrageenan, pectin, agar) and the like. This can be mixed with water, homogenized, and dried to form a sheet. Drying may be performed at room temperature (air drying), heating under reduced pressure, or freeze drying. The method of filling the sheet may be as described above. Alternatively, a polysaccharide-derived material and water may be homogenized to form granules, and the granules may be filled in a wrapper.

Furthermore, a polysaccharide-derived material, a gelling agent, a gelling accelerator, and water are homogenized to prepare a wet gel having a crosslinked structure, and subjected to supercritical carbon dioxide treatment and freeze-drying to leave the crosslinked structure. A low-density porous gel (a gel having an open pore structure) may be obtained by removing water as it is. Details of the method are disclosed in WO2019/111536. A flavor source (flavor, tobacco extract, ground tobacco, etc.) may be added to the raw material and homogenized to prepare a wet gel. Alternatively, the flavor source can be added to the porous gel.

(2-2) Wrapper The flavor source filling 14 is wrapped with a wrapper 17 . The wrapper 17 can be the same as the wrapper 15 described above. If the fill contains a lot of moisture or an aerosol-forming substrate, it is desirable that the strength of the wrapper does not decrease when saturated with those liquids. From the viewpoint of preventing a decrease in strength, in addition to the wrapper 15 described above, it is preferable to use a material obtained by bonding paper and metal foil, a material obtained by bonding paper and a polymer film, or the like.

2. First Mouthpiece Segment The first mouthpiece segment 3 is located downstream of the flavor source containing rod 1 . The first mouthpiece segment 3 is composed of a tubular member 31 , preferably a paper tube 31 . A known paper can be used, and its thickness is preferably 200 to 1000 μm. The first mouthpiece segment 3 is connected with the flavor source containing rod 1 by means of mouthpiece lining paper 35 . The mouthpiece lining paper 35 and the tubular member 31 are provided with perforations 33 penetrating them. Due to the presence of perforations 33 outside air is introduced into the segment 3 in question during suction. As a result, the vaporized aerosol component generated by heating the flavor source-containing segment 13 comes into contact with the outside air and liquefies due to the decrease in temperature to form an aerosol. The first mouthpiece segment 3 thus has the function of a cooling segment. The diameter (spanning length) of the perforations 33 is not particularly limited, but can be, for example, 0.5 to 1.5 mm. The number of perforations 33 is not particularly limited, and may be one or two or more. For example, a plurality of perforations 33 may be provided on the circumference of the first mouthpiece segment 3 .

When the heater 91 is inserted from the tip of the flavor source-containing segment 13, part of the flavor source filling 14 may be pushed out into the first mouthpiece segment. In order to prevent this, the paper tube 31 is preferably made of paper thicker than the wrapper 17 around which the flavor source filling 14 is wrapped. Also, by arranging a liner inside the paper tube 31, it is possible to prevent the phenomenon that the flavor source filling 14 is pushed out. The liner can be made of the same paper as the paper that makes up the paper tube 31 . FIG. 12 shows one mode of a paper tube provided with a liner. In the figure, L is a liner and B is an adhesive.

3. Second Mouthpiece Segment The second mouthpiece segment 5 is located downstream of the first mouthpiece segment 3 . The second mouthpiece segment 5 has the function of increasing the strength of the flavor inhaler. Specifically, the second mouthpiece segment 5 is composed of a filling layer filled with cellulose acetate fibers at high density and a center hole segment 51 consisting of a hollow portion provided in the central portion, and an inner plug wrapper 53. Packaged. The center hole segment 51 can be a rod having an inner diameter of φ5.0 to φ1.0 mm, which is obtained by adding 6 to 20% by weight of a plasticizer containing triacetin to cellulose acetate fibers and hardening them. . Since the packed bed has a high packing density of fibers, air and aerosol flow only through the hollow portion during suction, and hardly flow inside the packed bed. A volatile perfume can also be included in the filling layer. By doing so, it becomes possible to include the volatile fragrance in the air or aerosol flowing through the hollow portion.

4. Third Mouthpiece Segment The third mouthpiece segment 7 is located downstream of the second mouthpiece segment 5 . The third mouthpiece segment 7 is a solid member and functions as a filter. The third mouthpiece segment 7 is composed of a filter segment 71 consisting of a solid cellulose acetate fiber packed layer and wrapped with an inner plug wrapper 73 . The second mouthpiece segment 5 and the third mouthpiece segment 7 are connected by an outer plug wrapper 55 . The non-combustion-heating flavor inhaler with the third mouthpiece segment 7 has a fiber-filled layer up to the mouthpiece end, so it has the same appearance characteristics as a normal cigarette.

The second mouthpiece segment and the third mouthpiece segment may be interchanged. Alternatively, only one of the second mouthpiece segment and the third mouthpiece segment may be provided.

The third mouthpiece segment may be a segment filled with a wet-laid nonwoven fabric or a dry-laid nonwoven fabric, like the cap member 11, instead of the segment filled with the aforementioned cellulose acetate fibers.

It is also possible to place one or more substantially spherical flavor capsules in the fiber bundle filled in the third mouthpiece segment. Flavor capsules have a shell containing sugars and proteins and a core with a liquid perfume ingredient. For example, the perfume capsules may be seamless capsules made by the twin-screw nozzle dropping method. The diameter of the generally spherical capsule is preferably smaller than the diameter of the bottom surface of the cylindrical third mouthpiece segment.

5. Non-Combustion Heating Flavor Inhaler A non-combustion heating flavor inhaler 100 is formed by connecting the flavor source-containing rod 1 to the first mouthpiece segment 3 , the second mouthpiece segment 5 , and the third mouthpiece segment 7 . These are connected by mouthpiece lining paper 35 . These connections can be made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper 35 and winding the segments.

6. Method for Manufacturing Cap Member 11 The method for manufacturing the cap member 11 according to the present embodiment preferably includes a step of compressing a nonwoven fabric containing natural fibers and filling it into a wrapper (hereinafter also referred to as a nonwoven fabric filling step). In addition, the above method includes a step of forming a nonwoven fabric by a carding or airlaid dry method, wet method, spunbond method, or melt blow method (hereinafter also referred to as a nonwoven fabric forming step) before the nonwoven fabric filling step. It is preferable to further include. According to the method, the cap member 11 of this embodiment can be manufactured easily and efficiently. Hereinafter, each step will be described by taking as examples the case of forming a dry-laid nonwoven fabric and the case of forming a wet-laid nonwoven fabric.

[When forming a dry nonwoven fabric]
(1) Nonwoven Fabric Forming Step In this step, a nonwoven fabric is formed by a carding or airlaid dry method, wet method, spunbond method, or melt blow method. In forming nonwoven fabrics, the bonding of fibers, including natural fibers, can be accomplished by thermal bonding, chemical bonding, needle punching, spunlacing (hydroentangling), stitchbonding, or steam jetting.

In this step, it is particularly preferable to form a dry nonwoven fabric by an air-laid dry method and bond fibers including natural fibers by a chemical bond method. In the air-laid dry method, a low-density fiber layer can be formed by air flow. Also, the chemical bond method can spray a binder to bond the fibers while maintaining a low density. Binders used in the chemical bond method include starch, polyvinyl alcohol, polyvinyl acetate, ethylene vinyl acetate copolymer, vinyl acetate acrylic copolymer and the like. One of these binders may be used, or two or more thereof may be used in combination. When a nonwoven fabric is formed by a spunbond method or a meltblown method, or when fibers including natural fibers are bonded by a thermal bond method, the fibers may further contain thermoplastic fibers in addition to the natural fibers.

(2) Nonwoven fabric filling step In this step, a dry nonwoven fabric containing natural fibers is compressed and filled into a wrapper. This step includes a step of stacking a plurality of sheet-shaped nonwoven fabrics, a step of folding the stacked nonwoven fabrics into an S-shaped shape, a step of compressing the folded non-woven fabric into an S-shaped shape, and filling a wrapper with the nonwoven fabric, is preferably included.

When compressing the nonwoven fabric, the compression ratio (B) calculated by the method described below is preferably 20% or more and less than 100%, more preferably 20 to 60%, and even more preferably 25 to 40%. When the compressibility (B) is 20% or more and less than 100%, the compressibility (A) of the obtained cap member 11 tends to be 20% or more and less than 100%.
[Method for calculating compression ratio (B)]
Cross-sectional area (B1): Cross-sectional area of the nonwoven fabric just before compression on the plane perpendicular to the axial direction of the cap member 11 Cross-sectional area (B2): Cross-sectional area of the nonwoven fabric portion on the plane perpendicular to the axial direction of the cap member 11 Compressed Rate (B) (%) = (cross-sectional area (B2) / cross-sectional area (B1)) x 100

The cross-sectional area (B1) is obtained by photographing the cross-section of the nonwoven fabric just before compression with a microscope and evaluating the vertical and horizontal lengths on the operation monitor. Measure by calculating. The cross-sectional area (B2) is obtained by measuring the outer circumference (circumference) of the cap member 11 with a filter circumference measuring machine (trade name: SODIMAX, manufactured by SODIM) and measuring the thickness of the wrapper with a paper thickness measuring machine. , calculated using these measurements.

This step can be carried out using, for example, the filter segment manufacturing apparatus shown in FIG. The apparatus includes a nonwoven fabric supply device S, a nonwoven fabric processing device W, and a filter segment forming device F. The nonwoven fabric supply device S can be a device that continuously supplies the nonwoven fabric manufactured by the nonwoven fabric forming process described above to the nonwoven fabric processing device W. As shown in FIG.

The details of the nonwoven fabric processing apparatus W are shown in FIG. The apparatus comprises a slitter W8, a pass part W9, a level adjusting roller W10, a vertical roller W11, an S-shaped guide W12, a rotor tube W13 and a forming member W14. The sheet-like nonwoven fabric W16 continuously supplied from the nonwoven fabric supply device S is cut into four pieces in the machine direction by the slitter W8. Specifically, as shown in FIG. 5, the nonwoven fabric W16 is equally cut into four pieces in the machine direction by three slit knives W15. Although the nonwoven fabric is cut into four sheets by this device, the number of sheets to be cut is not particularly limited.

Next, the four nonwoven fabrics W16 cut by the slitter W8 are shifted in phase by the pass part W9. Next, the height of each nonwoven fabric W16 is adjusted by the level adjustment roller W10, and the direction of the sheet of each nonwoven fabric W16 is changed by the vertical roller W11. Specifically, as shown in FIG. 6, the nonwoven fabric W16 passes through the vertical rollers W11 to change the orientation of the sheet, and then the nonwoven fabrics W16 are arranged so as to overlap each other with a slight shift. . Next, the nonwoven fabric W16 is folded into an S shape by passing through an S shaped guide W12. Specifically, as shown in FIGS. 7(a) and 7(b), the shape of the S-shaped guide W12 changes from the upstream side in FIG. 7(a) to the downstream side in FIG. 7(b). Then, the four nonwoven fabrics W16 stacked with a shift are finally folded into an S shape as shown in FIG. 7(b). 7A is a cross-sectional view taken along the dotted line (a) in FIG. 4 as seen from the direction in which the sheet W16 is conveyed (the left side of the page of FIG. 4), and FIG. 7B is the dotted line (b) in FIG. 4 is a cross-sectional view of the sheet W16 viewed from the direction in which the sheet W16 is conveyed (the left side of the paper surface of FIG. 4).

Next, the nonwoven fabric W16 folded into an S-shape is compression-molded into a cylindrical shape by a rotor tube W13. Specifically, as shown in FIG. 8, the non-woven fabric W16 folded into an S-shape is inserted into the rotating rotor tube W13 (FIG. 8(b)), and the rotor tube W13 rotates to form an S-shape. While being compressed while maintaining the shape, the outer edge is formed into a cylindrical shape (Fig. 8(a)). Next, the non-woven fabric W16 that has been compression-molded into a cylindrical shape is further compressed by the forming member W14 while making the S-shaped shape stronger. As shown in FIG. 9, a plurality of continuous rotating drum rolls W17 provided on the forming member W14 are driven by the forming tape. The continuous drum roll W17 may be arranged so that the inner diameter gradually decreases along the direction of flow of the nonwoven fabric W16. By passing the nonwoven fabric W16 through the drum roll W17 of the forming section, the nonwoven fabric W16 can be compression-molded into a cylindrical shape while making the S-shaped shape stronger. The compression rate (B) can be adjusted within the range described above by appropriately setting the length and rotation speed of the rotor tube W13, the inner diameter and number of drum rolls W17, and the thickness and width of the forming tape.

The nonwoven fabric that has been compression-molded into a cylindrical shape is supplied to the filter segment forming device F shown in FIG. Thereby, the cap member 11 is manufactured.

(3) Connecting Step The cap member 11 is fixed to the tip of the flavor source-containing segment 14 with the mouthpiece lining paper 35 (see FIG. 1B). Alternatively, the cap member 11 is connected to the flavor source-containing segment with the outer wrapper 34 and then connected to the mouthpiece segment with the mouthpiece lining paper 35 (see FIG. 1C).

[When forming a wet-laid nonwoven fabric]
(1) Nonwoven fabric forming step In this aspect, it is preferable to form paper as a wet nonwoven fabric. The paper can be manufactured by known methods, for example, using a common paper machine such as a cylinder paper machine, a single wire paper machine, a fourdrinier paper machine, an inclined wire paper machine, etc., bleached or unbleached. Paper can be manufactured using wood pulp as the main raw material. The paper may be low air permeability paper with an air permeability of less than 100 CU, or high air permeability paper with an air permeability of 100 CU or more. In addition to wood pulp, natural fibers other than wood may be blended. A small amount of chemical synthetic fiber may be blended to ensure

(2) Non-woven fabric filling step In this step, the wet non-woven fabric is gathered, and the processed dry non-woven fabric can be folded and filled inside the wrapper (see FIG. 2C). The ridgeline provided by the gathering process is substantially parallel to the axial direction of the cap member. The subsequent connection process is as described above.

7. Non-Combustion Heating Flavor Inhalation System The non-combustion heating flavor inhalation system preferably comprises a non-combustion heating flavor inhalation device and a heating device, and may have other configurations.

Fig. 10 shows an example of a non-combustion heating type flavor suction system. In the figure, the non-combustion-heating flavor inhalation system comprises a non-combustion-heating flavor inhalation device 100 and a heating device 300 that heats the flavor source-containing segment 13 of the device from the outside. Flavor source-containing segment 13 may be a tobacco-containing segment. FIG. 10 shows a mode of inserting the non-combustion heating type flavor inhaler 100 into the heating device 300 . The heating device 300 is an external heating type heating device including a heater 91 , a metal tube 93 , a body 95 , a battery unit 97 and a control unit 99 . The body 95 has a cylindrical recess, and a heater 91 and a metal tube 93 are provided on the inner side surface of the recess at a position facing the flavor source containing segment 13 of the non-combustion heating type flavor inhaler 100 inserted into the recess. are placed. The heater 91 can be an electric resistance heater, and power is supplied from a battery unit 97 according to an instruction from a control unit 99 that performs temperature control. The heat emitted from the heater 91 is transmitted to the flavor source containing segment 13 of the non-combustion heating type flavor inhaler 100 through the metal pipe 93 with high thermal conductivity.

The cap member 11 present at the tip of the non-combustion heating type flavor inhaler 100 may or may not be heated. Even when the cap member 11 according to this embodiment is heated, it does not generate volatile components as described above. Also, as shown in the lower part of FIG. 10, the heaters 91 can be arranged so that the space between the opposing heaters 91 becomes narrower toward the closed end side of the recess in order to improve the grip. In such cases, the cap member 11 is deformed. However, since the cap member 11 of this embodiment is filled with nonwoven fabric with an appropriate compressive force, unnecessary channels are not formed.

FIG. 11 shows another embodiment of the non-combustion heated flavor inhalation system. The heating device 300 is an internal heating device that includes a heater 91 that can be inserted into the non-combustion heating flavor inhaler 100 . As the heater 91, it is preferable to use a rigid plate-like, blade-like, or columnar heater. Examples of such heaters include ceramic heaters in which molybdenum, tungsten, or the like is added to a ceramic substrate. The cap member 11 of this embodiment is filled with the nonwoven fabric so that the main surface thereof is substantially parallel to the axial direction, and there are a plurality of gaps between the nonwoven fabrics. can be easily inserted. Further, it is preferable that the gap is invisible, but in this case, the appearance is also excellent.

Although the heating temperature of the heating device is not particularly limited, it is preferably 400°C or less, more preferably 150 to 400°C, and even more preferably 200 to 350°C. The heating temperature indicates the temperature of the heater of the heating device.

[Example 1] Production of cap members A to L (1) Production of nonwoven fabric A nonwoven fabric was produced by an air-laid dry method. Specifically, wood pulp as a raw material was first made into single fibers by a coarse crusher and a fibrillator, and then the pulp was dropped from a web forming device onto the absorbing surface of an endless wire mesh to form a web and transported. This web was sprayed with a binder solution containing polyvinyl alcohol and polyvinyl acetate acrylic copolymer, dried, and further sprayed with the binder solution and dried to obtain a nonwoven fabric with a width of 240 cm (chemical bond method). The obtained nonwoven fabric was taken up by a take-up device to form a jumbo roll. A nonwoven fabric was unwound from a jumbo roll, slit to a width of 13 cm, and wound up. For the cap members A to F, a wood pulp having a roughness of 0.22 mg/m (manufactured by Weyerhaueser, product name: NB416) was used as the raw wood pulp. For the cap members G to L, a wood pulp having a roughness of 0.18 mg/m (manufactured by UPMRaumacell, product name: Biobright) was used as the raw material wood pulp. The basis weights of the nonwoven fabrics used for the cap members A to L were appropriately adjusted.

(2) Manufacture of Cap Member Precursor A cap member was manufactured using a cigarette filter manufacturing apparatus. That is, the nonwoven fabric produced by the method described in (1) was cut into four pieces with a slitter, and the four pieces were piled up and compressed into a cylindrical shape with an S-shaped cut end. Next, the cylindrical non-woven fabric was wrapped with a wrapper (LPWS-OLL manufactured by Nippon Paper Papyria (air permeability 1300 CU, basis weight 26.5 g/m ² , thickness 48 μm)), and after gluing the wrap, A cap member precursor was obtained by cutting with a cutter into a predetermined length set in the filter manufacturing apparatus. The width of the nonwoven fabric before slitting is 130 mm, and the width of one sheet is 32 mm by slitting the nonwoven fabric into four sheets at equal intervals. A slight loss occurred during slitting. Thus, cap member precursors shown in Table 1 were produced. The precursor had an axial length of 27.0 mm and a circumference of 24.1 mm. All of the precursors were filled with 4 non-woven fabrics each having a width of 32 mm and a length of 27 mm. The precursor was cut to have an axial length of 8 mm to obtain a cap member. The physical properties of the cap member are shown in the table below.

[Example 2] Production of cap member (1) Wet-laid nonwoven fabric (paper)
Prepare the following papers.
1) Delfort: name Brown 205232, basis weight 33 [g/m ² ], thickness 50 [μm], air permeability 0 [CORESTA], color brown 2) Delfort: name BCPW 10003728, basis weight 35 [g/m ² ], thickness 37 [μm], air permeability 0 [CORESTA], color white 3) Made by Glatz: name Stiff PW 8969, basis weight 82 [g/m ² ], thickness 100 [μm ], air permeability 0 [CORESTA], color white 4) Made by Glatz: name Stiff PW 8993, basis weight 100 [g/m ² ], thickness 125 [μm], air permeability 0 [CORESTA], color white 5) Made by Nippon Paper Industries Co., Ltd.: Name Extra-thick white glassine, Basis weight 40 [g/m ² ], Thickness 37 [μm], Air permeability 0 [CORESTA], Color White

(2) Forming and Production of Cap Member Using a filter winding machine (FR4-PF manufactured by Sanjo Kikai Seisakusho Co., Ltd.), the paper was subjected to a process of forming vertical lines, and then wound up with a wrapper to produce a cap member. The conditions for streaking were as follows.
Pitch of vertical stripes: 1 mm intervals Creping depth of vertical stripes (biting depth of male and female metal rolls with stripes): 0.15 to 0.20 mm
As a wrapper, a plug wrap manufactured by Michael Co. (air permeability of 0 [CORESTA], basis weight of 36 [g/m ² ], thickness of 43 [μm], paper width of 24.3 mm) was used. The finished size of the cap member was 22.0 mm in circumference and 8 mm in length.
The filling conditions were as follows.
1) Width 180 mm, volume occupation ratio 24%, 2.5 mm _H2O
2) Width 200 mm, volume occupation ratio 20%, 2.5 mm _H2O
3) Width 80 mm, volume occupation ratio 27%, 3.5 mm _H2O
4) Width 100 mm, volume occupation ratio 27%, 3.5 mm _H2O
5) Width 180 mm, volume occupation ratio 24%, 2.5 mm _H2O

100 non-combustion heating type flavor suction device 1 flavor source containing rod 3 first mouthpiece segment 5 second mouthpiece segment 7 third mouthpiece segment 11 cap member 12 sheet, nonwoven fabric 13 flavor source containing segment, tobacco containing segment 14

flavor source Fillers

15, 17 Wrapper 31 Cylindrical member, paper tube 33 Perforations 34 Outer wrapper 35 Mouthpiece lining paper 51 Center hole segment 53 Inner plug wrapper
S Nonwoven fabric supply device W Nonwoven fabric processing device W8 Slitter W9 Passport W10 Level adjustment roller W11 Vertical roller W12 S-shaped guide W13 Rotor tube W14 Forming member W15 Slit knife W16 Nonwoven fabric W
F filter segment forming device
300 heating device 91 heater 93 metal tube 95 body 97 battery unit 99 control unit
L Liner B Adhesive

Claims

A flavor source-containing rod comprising a cap member at the tip opposite the mouthpiece end and a flavor source filling downstream thereof,
The flavor source-containing rod, wherein the cap member includes a natural fiber-containing sheet, the main surface of which is arranged substantially parallel to the longitudinal direction of the flavor source-containing rod.
The flavor source-containing rod according to claim 1, wherein the sheet comprises a dry-laid nonwoven fabric or a wet-laid nonwoven fabric.
The flavor source-containing rod according to claim 1 or 2, wherein the cap member comprises a wrapper, and the wrapper is filled with the sheet.
The flavor source-containing according to claim 3, wherein the sheet is a dry nonwoven fabric, and the compressibility (A) of the dry nonwoven fabric filled inside the wrapper calculated by the following method is 20% or more and less than 100%. rod.
[Method for calculating compression ratio (A)]
Cross-sectional area (A1): the cross-sectional area of the dry nonwoven fabric in a plane perpendicular to the axial direction of the cap member, measured by removing the wrapper of the cap member and taking out the dry nonwoven fabric Cross-sectional area (A2): the axis of the cap member Cross-sectional area inside the cap member in a plane perpendicular to the direction Compression rate (A) (%) = (cross-sectional area (A2) / cross-sectional area (A1)) x 100
5. The flavor source-containing according to claim 3 or 4, wherein the sheet is a dry nonwoven fabric, and a plurality of the dry nonwoven fabrics are stacked, folded into an S-shape, compressed and filled in the wrapper. rod.
The sheet is a dry nonwoven fabric that has been subjected to gather processing,
One processed dry nonwoven fabric is folded, or a plurality of processed dry nonwoven fabrics are stacked and folded to fill the inside of the wrapper and provided by the gathering process 5. The flavor source-containing rod according to claim 3, wherein the ridgeline is substantially parallel to the axial direction of the cap member.
The flavor source-containing rod according to any one of claims 2 to 6, wherein no gaps are visible between the dry nonwoven fabrics on the axial end face of the cap member.
4. The sheet according to claim 2 or 3, wherein the sheet is a wet-laid nonwoven fabric, and the volume occupancy (X) of the wet-laid nonwoven fabric filled inside the wrapper calculated by the following method is 10% or more and less than 60%. A rod containing a flavor source.
[Calculation method of volume occupation ratio (X)]
Cross-sectional area (X1): total area of the wet-laid nonwoven fabric in the cross section perpendicular to the axial direction of the cap member Cross-sectional area (X2): cross-sectional area inside the cap member in the cross section perpendicular to the axial direction of the cap member Volume occupation ratio (X ) (%) = (cross-sectional area (X1)/cross-sectional area (X2)) x 100
The sheet is a wet-laid nonwoven fabric that has been subjected to gathered processing,
Claim 2, wherein the processed dry nonwoven fabric is folded and filled inside the wrapper, and the ridgeline provided by the gather processing is substantially parallel to the axial direction of the cap member. 3. The flavor source-containing rod according to 3 or 8.
The flavor source-containing rod according to any one of claims 1 to 9, wherein the natural fiber is at least one type of fiber selected from the group consisting of silk, wool, cotton, hemp, and vegetable pulp.
The flavor source-containing rod according to claim 10, wherein the natural fiber is vegetable pulp.
The flavor source-containing rod according to any one of claims 1 to 11, wherein said cap member has an airflow resistance of 2 to 30 mmH2O.
The flavor source-containing rod according to any one of claims 1 to 12, further comprising the cap member at the downstream end of the flavor source filling.
The flavor source-containing rod according to any one of claims 1 to 13, wherein the flavor source filling comprises cut tobacco, tobacco sheets, or tobacco granules.
The flavor source-containing rod according to any one of claims 1 to 14, wherein the flavor source filling comprises a non-tobacco plant-derived material.
The flavor source-containing rod according to any one of claims 1 to 15, wherein the flavor source filling comprises a porous material made from non-tobacco plant fibers.
The flavor source-containing rod according to any one of claims 1 to 16, wherein the flavor source filling comprises a polysaccharide-derived material.
A non-combustion-heating flavor inhaler, comprising the flavor source-containing rod according to any one of claims 1 to 17.