Flavor inhalation article

Abstract

A flavor inhalation article 1 comprising: a base material portion 10 comprising an aerosol source 11; and a nozzle portion (50) through which aerosol generated in the base material portion (10) passes, in which the nozzle portion (50) has a filter (31) which is a paper filter obtained by filling a sheet member such that a gap is formed in the longitudinal direction of the nozzle portion (50), and a low-filtration member (33) which is provided between the filter (31) and the low-filtration member (33). The low filtration member is provided in the filter 31 and has a filtration rate lower than that of the filter 31.

Description

Technical Field

[0001] The present invention relates to a flavored inhalation product. Background Art

[0002] PTL 1 discloses an aerosol supply system comprising: a housing having a mouthpiece with an air outlet; and a consumable unit housed in the housing, the consumable unit including a supply source of aerosol-generating medium and an air flow path wall forming an air flow path through the supply source of aerosol-generating medium and terminating near the air outlet of the housing. PTL 1 indicates that the consumable unit includes at least one filter material selected from tobacco, cellulose acetate, and porous paper.

[0003] Citation List

[0004] Patent Literature

[0005] PTL 1: JP 2022-528485 A Summary of the Invention

[0006] Technical issues

[0007] As a filter for the flavor inhalation product, for example, a paper filter can be used in consideration of the environment.

[0008] Here, the ability of a paper filter to filter aerosol is generally higher than that of a filter using fibers such as cellulose acetate. Therefore, when a paper filter is used, the smoking flavor caused by aerosol is reduced more than that of a filter using fibers such as cellulose acetate.

[0009] It is an object of the present invention to improve the efficiency of smoking flavor delivery when using paper filters for flavored inhalation articles.

[0010] Solution to the problem

[0011] A first feature of the present invention accomplished based on this purpose is a flavor inhalation product, which includes: a base material portion, the base material portion including an aerosol source; and a filter portion, the aerosol generated in the base material portion passing through the filter portion, wherein the filter portion has: a paper filter, the paper filter being filled with a sheet member so as to form a gap in the longitudinal direction of the filter portion; and a low filter member, which is arranged in the paper filter and has a filtration rate lower than the filtration rate of the paper filter.

[0012] The second feature is that the paper filter may be a filter in which sheet members are gathered.

[0013] The third feature is that the packing density of the sheet member can be 90 mg / cm 3 Up to 720g / cm 3 .

[0014] The fourth feature is that the lower filter member may be a hollow member with at least one end in the longitudinal direction being open.

[0015] The fifth feature is that the lower filter member may be a hollow member with both ends in the longitudinal direction being open.

[0016] A sixth feature is that the lower filter member may include at least paper.

[0017] The seventh feature is that the lower filter member may be a straight paper tube formed by cylindrically winding paper or a spiral paper tube formed by obliquely winding strip-shaped paper.

[0018] An eighth feature is that the length of the lower filter member in the longitudinal direction may be shorter than the length of the paper filter in the longitudinal direction.

[0019] A ninth feature is that a difference between a length of the lower filter member in the longitudinal direction and a length of the paper filter in the longitudinal direction may be 2 mm or more.

[0020] The tenth feature is that the lower filter member can be positioned on the downstream end side of the paper filter, and the end surface of the lower filter member on the downstream end side and the end surface of the paper filter on the downstream end side can be separated by 2 mm or more.

[0021] The eleventh feature is that the lower filter member may be provided on the side of the base material portion in the paper filter.

[0022] The twelfth feature is that the length of the lower filter member in the longitudinal direction may be the same as the length of the paper filter in the longitudinal direction.

[0023] The thirteenth feature is that a ratio of the circumference of the lower filter member to the circumference of the paper filter may be at least 0.2 but less than 0.7.

[0024] The fourteenth feature is that the air flow resistance of the paper filter can be 0 [mmH2O / 10mm] to 100 [mmH2O / 10mm].

[0025] The fifteenth feature is that an aerosol regulator for regulating aerosol can be provided in the paper filter.

[0026] The sixteenth feature is that the aerosol regulator may be a destructible capsule from which the content liquid containing the fragrance component is released by applying an external force.

[0027] The seventeenth feature is that the aerosol regulator may be arranged linearly with the lower filter member in the longitudinal direction.

[0028] An eighteenth feature is that the aerosol regulator may be linearly arranged on the suction end side in the longitudinal direction relative to the lower filter member.

[0029] The nineteenth feature is that the aerosol regulating agent may be linearly arranged on the base material portion side in the longitudinal direction relative to the lower filter member.

[0030] The twentieth feature is that the filter portion may have a cylindrical member molded in a cylindrical shape between the base material portion and the paper filter, and the circumference of the cylindrical member may be substantially the same as the circumference of the paper filter.

[0031] A twenty-first feature is that the flavor inhalation article may include a tipping paper wrapped around the outer peripheral surface of the base material portion and the filter portion, wherein the tipping paper has ventilation holes formed at positions corresponding to the cylindrical member or the paper filter, and air flows into the ventilation holes from the outside.

[0032] Advantageous Effects of the Invention

[0033] According to the first and second features, when a paper filter is used for the flavor inhalation article, the delivery efficiency of the smoking flavor can be improved.

[0034] According to the third feature, when a paper filter is used for the flavor inhalation article, suitable aerosol filtration can be achieved.

[0035] According to the fourth feature, compared with a configuration in which the lower filter member is solid, the delivery efficiency of the smoking flavor can be improved.

[0036] According to the fifth feature, compared with a configuration in which one end of the lower filter member is closed in the longitudinal direction of the filter portion, the delivery efficiency of the smoking flavor can be improved.

[0037] According to the sixth feature, the material constituting the low filtration member can be made substantially the same as that of the paper filter.

[0038] According to the seventh feature, the cross section cut perpendicularly to the direction of the aerosol flowing inside the lower filter member may be circular.

[0039] According to the eighth feature, the flavor inhalation product can have the same appearance as one end of a paper filter for the flavor inhalation product without a lower filter member in the longitudinal direction of the filter portion.

[0040] According to the ninth feature, the lower filter member can be hidden from view from at least one end of the paper filter in the longitudinal direction of the filter portion.

[0041] According to the tenth and eleventh features, the lower filter member can be hidden from view from the end surface of the paper filter on the downstream end side in the longitudinal direction of the filter portion.

[0042] According to the twelfth feature, compared with a configuration in which the length of the low filter member in the longitudinal direction of the filter portion is shorter than that of the paper filter, the delivery efficiency of the smoking flavor can be improved.

[0043] According to the thirteenth feature, the delivery amount can be maintained while filtering the aerosol.

[0044] According to the fourteenth feature, it is possible to perform adjustment to have an airflow resistance comparable to that of a flavor inhalation article having a filter using fibers such as cellulose acetate.

[0045] According to the fifteenth feature, the aerosol generated in the base material portion can be regulated.

[0046] According to the sixteenth feature, a new smoking flavor can be given to the aerosol.

[0047] According to the seventeenth feature, the delivery efficiency of the regulated aerosol can be improved compared to a configuration in which the aerosol regulator is provided at a position not corresponding to the lower filter member.

[0048] According to the eighteenth feature, at the time of inhalation, the aerosol that has passed through the lower filter member can effectively come into contact with the aerosol regulator.

[0049] According to the nineteenth feature, upon inhalation, the regulated aerosol can pass through the lower filter member.

[0050] According to the twentieth feature, the delivery efficiency of the flavor component and the aerosol during inhalation can be improved.

[0051] According to the twenty-first feature, the concentration of the flavor component and the aerosol to be inhaled can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] [ Figure 1 ] is a view showing a longitudinal cross-section of the flavor inhalation product according to the first embodiment.

[0053] [ Figure 2 ] is a diagram schematically showing a configuration example of the inhalation device according to the first embodiment.

[0054] [ Figure 3 ] are views showing examples of the configuration of the filter portion according to the first embodiment, wherein (A) is a view showing an example of a cross section of the II section, and (B) is a view showing an example of a cross section of the II-II section.

[0055] [ Figure 4] are views showing another example of the configuration of the filter portion according to the first embodiment, wherein (A) is a view showing another example of the cross section of the II section, and (B) is a view showing another example of the cross section of the II-II section.

[0056] [ Figure 5 ] is a view showing another example of a longitudinal cross-section of the flavor inhalation product according to the first embodiment, wherein (A) is a view showing a low filter member having a sharp second side, and (B) is a view showing a longitudinal cross-section of the flavor inhalation product in which a low filter member having a width decreasing from the first side toward the second side is provided.

[0057] [ Figure 6 ] is a view showing another example of a longitudinal cross-section of the flavor inhalation product according to the first embodiment, wherein (A) is a view showing a state in which the lower filter member is positioned on the second side in the filter, and (B) is a view showing a state in which the lower filter member is positioned near the center in the filter.

[0058] [ Figure 7 ] is a view showing another example of a longitudinal cross-section of the flavor inhalation product according to the first embodiment, wherein (A) is a view showing a state in which a low filter member having the same size as the filter in the centerline direction is positioned in the filter, and (B) is a view showing a state in which a plurality of low filter members are positioned in the filter.

[0059] [ Figure 8 ] are views showing a longitudinal cross-section of a flavor inhalation product according to a second embodiment, wherein (A) is a view showing a state in which a lower filter member is positioned on a first side in a filter, and (B) is a view showing a state in which a lower filter member is positioned on a second side in a filter.

[0060] [ Figure 9 ] is a view showing another example of a longitudinal cross-section of the flavor inhalation product according to the second embodiment, wherein (A) is a view showing a state in which the lower filter member is positioned on the first side in the filter, and (B) is a view showing a state in which the lower filter member is positioned on the second side in the filter.

[0061] [ Figure 10 ] are views showing a longitudinal cross-section of a flavor inhalation product according to a third embodiment, wherein (A) is a view showing a state in which a low filter component is positioned on a first side of an aerosol regulator, and (B) is a view showing a state in which a low filter component is positioned on a second side of an aerosol regulator.

[0062] [ Figure 11 ] is a view showing a longitudinal cross-section of a flavor inhalation product according to a fourth embodiment.

[0063] [ Figure 12 ] is a view showing another example of a longitudinal cross-section of the flavor inhalation product according to the fourth embodiment, wherein (A) is a view showing a state in which a lower filter member is positioned on the second side in the filter, (B) is a view showing a state in which a lower filter member is positioned near the center in the filter, and (C) is a view showing a state in which a plurality of lower filter members are positioned in the filter.

[0064] [ Figure 13 ] are views showing a longitudinal cross-section of a flavor inhalation product according to a fifth embodiment, wherein (A) is a view showing a state in which a lower filter member is positioned on a first side in a filter, and (B) is a view showing a state in which a lower filter member is positioned on a second side in a filter.

[0065] [ Figure 14 ] are views showing a longitudinal cross-section of a flavor inhalation product according to a fifth embodiment, wherein (A) is a view showing a state in which a lower filter member is positioned on a first side in a filter, and (B) is a view showing a state in which a lower filter member is positioned on a second side in a filter.

[0066] [ Figure 15 ] are views showing a longitudinal cross-section of a flavor inhalation product according to a sixth embodiment, wherein (A) is a view showing a state in which a low filter member is positioned on a first side of an aerosol regulator, (B) is a view showing a state in which a low filter member is positioned on a second side of an aerosol regulator, and (C) is a view showing a state in which a low filter member is positioned on a first side and a second side of an aerosol regulator. DETAILED DESCRIPTION

[0067] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the accompanying drawings, the same components are indicated by the same reference numerals.

[0068] <First embodiment>

[0069] Figure 1 is a view showing a longitudinal section of the flavor inhalation article 1 according to the first embodiment. Figure 2 1 is a diagram schematically showing a configuration example of the inhalation device 100 according to the first embodiment.

[0070] The flavor inhalation article 1 according to the first embodiment comprises a base material portion 10, a cooling portion 20, and a filter portion 30. The mouthpiece segment 50 can be held in the mouth by the user during inhalation and Figure 1In the example of FIG, the mouthpiece segment includes a cooling portion 20 and a filter portion 30. In addition, the base material portion 10 is formed into a cylindrical shape. Hereinafter, the direction of the center line CL of the base material portion 10 may be referred to as the "center line direction". The flavor inhalation product 1 is wound in the following state: the base material portion 10, the cooling portion 20, and the filter portion 30 are arranged in this order in the center line direction, and the device further includes a plugging paper 40 that integrates them. Hereinafter, one end side ( Figure 1 The left side in the center line) can be called the first side, and the other end side in the center line direction ( Figure 1 The right side in the inhalation device 100 can be referred to as the second side. The first side is the end side to be inserted into the inhalation device 100, and is the upstream side of aerosol flow during inhalation. The second side is opposite to the first side, and is the end side that the user keeps the product in the mouth for inhalation, and is the downstream side of aerosol flow during inhalation. In addition, the cross section along the centerline direction is called "longitudinal cross section", and the cross section cut at the plane orthogonal to the centerline direction is defined as "cross section".

[0071] [Use of flavor inhalation product 1]

[0072] The flavored inhalation article 1 according to the first embodiment is used in a heat-not-burn inhalation device 100. Figure 2 As shown, the inhalation device 100 includes a power supply unit 111 for storing and supplying power to each component of the inhalation device 100, a sensor unit 112 for detecting various information about the inhalation device 100, and a notification unit 113 for notifying the user of this information. Furthermore, the inhalation device 100 includes a storage unit 114 for storing various information used for the operation of the inhalation device 100, a communication unit 115 for transmitting and receiving information between the inhalation device 100 and other devices, and a control unit 116 for controlling the overall operation of the inhalation device 100. Furthermore, the inhalation device 100 includes a heating unit 121 for heating the flavor inhalation article 1, a holding portion 140 for holding the flavor inhalation article 1, an opening 142 for connecting the interior space 141 to the outside, and a heat insulating portion 144 for preventing heat transfer from the heating unit 121 to other components of the inhalation device 100. The user inhales using the inhalation device 100 while the flavor inhalation article 1 is held by the holding portion 140.

[0073] The heating unit 121 heats the base material portion 10 of the flavor inhalation article 1. The heating unit 121 is formed of any material, such as metal or polyimide. For example, the heating unit 121 is configured in a film shape and is positioned to cover the outer circumference of the retaining portion 140. When the heating unit 121 generates heat, the aerosol source 11 contained in the flavor inhalation article 1 is heated from the outer periphery of the flavor inhalation article 1. The heating unit 121 generates heat when it receives power from the power supply unit 111. For example, power may be supplied when the sensor unit 112 detects a predetermined user input. When the temperature of the flavor inhalation article 1 heated by the heating unit 121 reaches the predetermined temperature, inhalation by the user is possible. Thereafter, when the sensor unit 112 detects the predetermined user input, power supply may be stopped. As another example, aerosol generation may be achieved by supplying power during the period when the sensor unit 112 detects inhalation by the user.

[0074] The heat insulating portion 144 is provided to cover at least the outer periphery of the heating unit 121. For example, the heat insulating portion 144 is configured of a vacuum insulation material or an aerogel insulation material. It should be noted that the vacuum insulation material is an insulation material in which, for example, a high vacuum state is created by wrapping glass wool and silica (silicon powder) in a resin film so that the heat conduction of the gas is as close to zero as possible.

[0075] [Flavor inhalation product 1]

[0076] Flavor inhalation product 1 is a heat-not-burn type flavor inhalation product.

[0077] The cross section of the flavor inhalation article 1 is substantially circular, and its circumference can be appropriately changed to match the size of the product, but the circumference is generally 16-27 mm, preferably 21-23 mm. It should be noted that when the cross section is not circular, if it is assumed to have the same area as its cross-sectional area, the circumference can be the circumference of the circle.

[0078] The dimension of the flavor inhalation article 1 in the centerline direction can be appropriately changed to match the size of the product, but is generally 40-100 mm, preferably 50-70 mm.

[0079] [Base material part 10]

[0080] The base material portion 10 has an aerosol source 11 that generates steam by being heated, and a wrapping paper 12 that covers the outer periphery of the aerosol source 11, generating an aerosol in the steam. In addition, the base material portion 10 may have an end member 13 that prevents the aerosol source 11 from falling from the end surface of the base material portion 10 on the first side. By wrapping the aerosol source 11 and the end member 13 with the wrapping paper 12, the base material portion 10 is formed into a columnar shape. The aerosol source 11 can be, for example, a tobacco-derived substance (such as tobacco shreds) or a processed product obtained by molding tobacco raw materials into a granular form, a sheet form, or a powder form. In addition, the aerosol source 11 can also contain non-tobacco-derived substances produced by plants other than tobacco (for example, mint or herbs). As an example, the aerosol source 11 can contain spices. There is no particular restriction on the type of spices, and from the perspective of imparting a good flavor, the spices are preferably menthol. These spices can be used alone, or two or more spices can be used in combination. When the inhalation device 100 is a medical inhaler, the aerosol source 11 may contain a drug to be inhaled by the patient. It should be noted that the aerosol source 11 is not limited to a solid and may also be a polyol (such as glycerin or propylene glycol) or a liquid (such as water). When the flavor inhalation product 1 is held in the holding portion 140, at least a portion of the base material portion 10 is accommodated in the interior space 141 of the holding portion 140.

[0081] The base material portion 10 obtained by wrapping the aerosol source 11 with the wrapping paper 12 preferably has a columnar shape satisfying a shape having an aspect ratio of 1 or more defined by Equation 1.

[0082] [Equation 1]

[0083] Aspect ratio = h / w

[0084] In Equation 1, w is the width of the cross section of the base material portion 10, and h is the dimension of the base material portion 10 in the centerline direction, preferably satisfying h ≥ w. The cross-sectional shape is not limited and can be polygonal, rounded polygonal, circular, elliptical, or the like. The width w is the diameter when the cross section is circular, the major axis when the shape is elliptical, and the diameter or major axis of the circumscribed circle when the shape is polygonal or rounded polygonal. The cross-sectional width of the aerosol source 11 constituting the base material portion 10 is preferably 4-9 mm.

[0085] The dimension h of the base material portion 10 in the centerline direction can be appropriately changed to match the size of the product, but is generally 8 mm or larger, preferably 10 mm or larger. The dimension h of the base material portion 10 in the centerline direction is generally 70 mm or smaller, preferably 30 mm or smaller.

[0086] Furthermore, there is no particular limitation on the ratio of the dimension h of the base material portion 10 in the centerline direction to the dimension of the flavor inhalation article 1. However, from the perspective of the balance between the amount of delivery and the aerosol temperature, the ratio is generally 10% or more, preferably 20% or more, more preferably 25% or more, and even more preferably 30% or more. Furthermore, the ratio of the dimension h of the base material portion 10 to the dimension of the flavor inhalation article 1 is generally 80% or less, preferably 70% or less, more preferably 60% or less, even more preferably 50% or less, particularly preferably 45% or less, and most preferably 40% or less.

[0087] There is no particular limitation on the content of the aerosol source 11 in the base material portion 10, but an example may be 200-800 mg, preferably 250-600 mg. This range is particularly suitable if the base material portion 10 has a circumference of 22 mm and a dimension of 20 mm in the centerline direction.

[0088] The aerosol source 11 containing tobacco shreds will be described. There are no particular restrictions on the material of the tobacco shreds contained in the aerosol source 11, and well-known materials such as thin layers and center ribs can be used. In addition, tobacco dust can be formed by grinding dried tobacco leaves into an average particle size of 20 μm or more and 200 μm or less, and then homogenizing and processing it into a chopped sheet (hereinafter also referred to as a "homogenized sheet"). In addition, the aerosol source 11 can be filled with a material obtained by chopping a homogenized sheet having a size similar to that of the base material portion 10 in the center line direction and substantially horizontally, which forms a so-called "strand-type" filling material.

[0089] Furthermore, the width of the tobacco shreds is preferably 0.5 mm or more to 2.0 mm or less in order to fill the aerosol source 11 .

[0090] For the tobacco leaves used in the production of tobacco shreds and homogenized sheets, various types of tobacco used can be used. Examples that can be cited include yellow tobacco, burley tobacco, oriental tobacco or natural types, as well as other red and yellow tobacco varieties, and mixtures thereof. Suitable blends of these varieties can be used in the mixture to achieve the desired taste. Details about tobacco varieties are disclosed in "Tobacco Dictionary, Tobacco Academic Research Center, March 31, 2009". There are multiple conventional methods for producing homogenized sheets, that is, methods for grinding tobacco leaves and processing them into homogenized sheets. According to the first method, papermaking technology is used to produce paper sheets. According to the second method, a suitable solvent (such as water) is mixed with the ground tobacco leaves, and the mixture is homogenized. Afterwards, the homogenized material is thinly cast on a metal plate or metal strip and dried to obtain a cast sheet. According to the third method, a suitable solvent (such as water) is mixed with the ground tobacco leaves, and the mixture is homogenized. Then, the homogenized material is extruded into the form of a sheet and shaped to obtain a calendered sheet. Details of the types of homogenized sheets are disclosed in "Tobacco Dictionary, Tobacco Academic Research Center, March 31, 2009."

[0091] An example of the moisture content of the aerosol source 11 is 10% by mass or more and 15% by mass or less, preferably 11% by mass or more and 13% by mass or less, relative to the total mass of the aerosol source 11. Such a moisture content suppresses the formation of wrapping stains when producing the base material portion 10 and improves rolling suitability.

[0092] There is no particular limitation on the aerosol source 11, and various types of natural products and / or their components can be selected according to the purpose of use. Examples of the extracts and / or their components include glycerol, propylene glycol, triacetin, 1,3-butylene glycol, and mixtures thereof.

[0093] There is no particular limitation on the amount of the extract and / or its components contained in the aerosol source 11. From the perspective of generating a sufficient aerosol and imparting a good flavor, the amount is generally 5% by mass or more, preferably 10% by mass or more, relative to the total amount of the aerosol source 11. The content of the extract and / or its components in the aerosol source 11 is generally 50% by mass or less, preferably 15-25% by mass.

[0094] There is no particular limitation on the packing density of the aerosol source 11, and from the perspective of ensuring the performance of the flavor inhalation product 1 and imparting good flavor, the packing density is generally 250 mg / cm 3 or greater, preferably 300 mg / cm 3 The filling density of the aerosol source 11 is usually 400 mg / cm 3or less, preferably 350 mg / cm 3 or smaller.

[0095] The aerosol source 11 may also consist of a tobacco sheet. There may be one tobacco sheet, or two or more tobacco sheets.

[0096] When the aerosol source 11 includes a single tobacco sheet, an example of a filling form may be a filling form in which a tobacco sheet having one side having a size comparable to the size of the filling material in the centerline direction is folded multiple times parallel to the centerline direction of the filling material (forming a so-called "gathered sheet"). Another example of a filling form may be a form in which a tobacco sheet having one side having a length comparable to the size of the filling material in the centerline direction is wrapped around a direction perpendicular to the centerline direction of the filling material.

[0097] An example of a filling format in which the aerosol source 11 includes two or more tobacco sheets may be a filling format in which a plurality of tobacco sheets, each having a side length equivalent to the dimension of the filling material in the centerline direction, are wound in a direction perpendicular to the centerline direction of the filling material so as to be concentrically arranged. "Concentrically arranged" means that all tobacco sheets are arranged so that their centers are in approximately the same position.

[0098] Furthermore, when two or more tobacco sheets are used, the tobacco sheets may all have the same composition or physical properties, or some or all of the tobacco sheets may have different compositions or physical properties.The tobacco sheets may have the same thickness or different thicknesses.

[0099] There is no limitation on the thickness of each tobacco sheet, and from the viewpoint of the balance between heat transfer efficiency and strength, the thickness is preferably 150 μm to 1000 μm, more preferably 200 μm to 600 μm.

[0100] The aerosol source 11 can be manufactured by preparing a plurality of tobacco sheets having different widths, preparing a laminate having a width decreasing from a first side toward a second side, and passing the laminate through a rolling tube to roll-mold the laminate.

[0101] According to this manufacturing method, a plurality of tobacco sheets extend in the centerline direction and are concentrically arranged around CL.

[0102] In this manufacturing method, the laminate is preferably prepared so that after roll molding, non-contact portions are formed between adjacent tobacco sheets. If there are non-contact portions (gaps) where the tobacco sheets do not touch each other between multiple tobacco sheets, a flavor flow path can be ensured, thereby improving the delivery efficiency of the flavor components. At the same time, heat from the heating unit 121 can be transferred to the outer tobacco sheets through the contact portions of the multiple tobacco sheets, thereby ensuring high heat transfer efficiency.

[0103] Examples of methods for preparing a laminate so as to provide non-contact portions where tobacco sheets do not contact between a plurality of tobacco sheets may include using embossed tobacco sheets, laminating the entire surfaces of adjacent tobacco sheets without sticking, laminating portions of adjacent tobacco sheets by adhesion, or laminating the entire surfaces or portions of adjacent tobacco sheets with slight sticking so that the sheets can be peeled off after roll molding.

[0104] When the base material portion 10 including the wrapping paper 12 is prepared, the wrapping paper 12 may be provided on the end surface of the first side of the laminate.

[0105] Tobacco sheet material can be produced by well-known methods (such as sheet forming, filling or rolling).In addition, the homogenized sheet material described above can also be used.

[0106] In the case of sheet forming, tobacco sheets can be produced by a method comprising the following steps: 1) coarsely grinding dried tobacco leaves, extracting with water, and then separating into an aqueous extract and a residue. 2) drying and concentrating the aqueous extract under reduced pressure. 3) adding pulp to the residue, fibrillating the material in a refiner, and then forming it into paper. 4) adding the concentrated aqueous extract to the sheet formed from the paper and drying it to form the tobacco sheet. In this case, a step of removing certain components, such as nitrosamines, may also be added (see JP 2004-510422 A).

[0107] In the case of a slurry filling process, tobacco sheets can be produced by a method comprising the following steps: 1) mixing ground tobacco leaves with water, pulp, and a binder; 2) spreading (casting) the mixture in a thin layer and drying it. In this case, a step can be added in which the slurry obtained by mixing the ground tobacco leaves with water, pulp, and a binder is exposed to ultraviolet or X-ray radiation to remove certain components, such as nitrosamines.

[0108] In addition to the above, a nonwoven tobacco sheet produced by a method including the following steps, as disclosed in WO 2014 / 104078 A1, can also be used: 1) Mixing granulated tobacco leaves with a binder. 2) Inserting the mixture between nonwoven fabrics. 3) Molding the laminate into a fixed shape by heat-melt bonding to obtain a tobacco sheet in the form of a nonwoven fabric.

[0109] The type of raw tobacco used in each of the above methods can be the same as described in the aerosol source 11 comprising tobacco shreds.

[0110] There is no particular restriction on the composition of the tobacco sheet, but for example the content of the tobacco starting material (tobacco leaf) is preferably 50% by mass to 95% by mass relative to the total mass of the tobacco sheet. In addition, the tobacco sheet may include a binder, and examples of such binders that can be enumerated include guar gum, xanthan gum, carboxymethyl cellulose, and sodium carboxymethyl cellulose. Relative to the total mass of the tobacco sheet, the amount of the binder is preferably 1% by mass to 10% by mass. The tobacco sheet may further include other additives. Examples of other additives that can be enumerated include fillers, such as pulp.

[0111] The configuration of the wrapping paper 12 used for the base material portion 10 is not particularly limited and can be a general form, examples of which include those in which pulp is a main component. Pulps that can be used include wood pulps such as softwood pulp and hardwood pulp, as well as non-wood pulps commonly used for wrapping paper for tobacco products such as flax pulp, sisal pulp, and esparto grass, and the like. The wrapping paper 12 can be obtained by a papermaking process using one or more of these pulps.

[0112] Types of pulp that can be used include chemical pulp, ground pulp, chemical ground pulp and thermomechanical pulp, which are obtained by kraft digestion, acid / neutral / alkaline sulfite digestion and soda digestion, among others.

[0113] The wrapping paper 12 is produced by using the above-described pulp in a papermaking process employing a Fourdrinier papermaking machine, a cylinder papermaking machine, or a combination cylinder-shortcircuit papermaking machine, etc., and then adjusting the texture and homogenizing the resulting paper. It should be noted that, if necessary, a wet strength agent may be added to impart water resistance to the wrapping paper 12, or a sizing agent may be added to adjust the printing conditions of the wrapping paper 12. Internal additives used in papermaking may also be added, such as sulfate tape, various types of anionic, cationic, nonionic, or amphoteric yield improvers, drainage improvers, and paper strength enhancers, as well as papermaking additives such as dyes, pH adjusters, defoamers, pitch control agents, and slime control agents.

[0114] The basis weight of the base paper of the wrapping paper 12 is typically, for example, 20 gsm or greater, preferably 25 gsm or greater. At the same time, the basis weight is typically 65 gsm or less, preferably 50 gsm or less, even more preferably 45 gsm or less.

[0115] There are no particular restrictions on the thickness of the wrapping paper 12. From the perspectives of rigidity, permeability, and ease of adjustment during papermaking, the thickness is preferably 10 μm or more, more preferably 20 μm or more, and even more preferably 30 μm or more. The thickness of the wrapping paper 12 is generally 100 μm or less, preferably 75 μm or less, and more preferably 50 μm or less.

[0116] The shape of the wrapping paper 12 may be square or rectangular.

[0117] When this wrapping paper is used as wrapping paper 12 for wrapping aerosol source 11 and tip member 13, one side can have a length of approximately 8-70 mm, and the other side can have a length of 15-28 mm. The other side can preferably have a length of 22-24 mm, and more preferably about 23 mm. When wrapping paper 12 is used to wrap aerosol source 11 in a cylindrical shape (for example, by overlapping the end of wrapping paper 12 and the opposite end of wrapping paper 12 by approximately 2 mm and then gluing these ends together), the shape becomes a cylindrical paper tube, and aerosol source 11 is filled therein. The size of rectangular wrapping paper 12 can be determined by the size of base material portion 10.

[0118] The wrapping paper 12 may include a filler in addition to the pulp. The filler content is 10% to 60% by mass, preferably 15% to 45% by mass, relative to the total mass of the wrapping paper 12.

[0119] In the wrapping paper 12, the content of the filler material is preferably 15-45 mass % within a preferred basis weight range (25-45 gsm).

[0120] Furthermore, when the basis weight is 25-35 gsm, the content of the filler material is preferably 15-45% by mass, and when the basis weight is 35-45 gsm, the content of the filler material is preferably 25-45% by mass.

[0121] Calcium carbonate, titanium dioxide, kaolin, or the like can be used as the filling material, but calcium carbonate is preferably used from the viewpoint of improving flavor and whiteness.

[0122] In addition to the base paper and filler material, various additives may be added to the wrapping paper 12. For example, a water resistance improver may be added to improve water resistance. This water resistance improver includes a wet strength agent (WS agent) and a sizing agent. Examples of wet strength agents include urea-formaldehyde resin, melamine-formaldehyde resin, and polyamide epichlorohydrin (PAE). Sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or greater.

[0123] As an auxiliary agent, a paper strengthening agent may be added, examples of which include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, and polyvinyl alcohol, etc. It is known to use a small amount of oxidized starch to improve air permeability (for example, see JP 2017-218699 A).

[0124] A coating agent may be added to at least one of the two surfaces (i.e., the front and back surfaces) of the wrapping paper 12. The coating agent is not particularly limited, but it is preferably one that can form a film on the surface of the paper and reduce liquid permeability. Examples include alginic acid and its salts (e.g., sodium salt), polysaccharides (e.g., pectin), cellulose derivatives (e.g., ethyl cellulose, methyl cellulose, carboxymethyl cellulose, and nitrocellulose), starch and its derivatives (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch), and ester derivatives (e.g., starch acetate, starch phosphate, and starch octenyl succinate).

[0125] [Tipping paper 40]

[0126] The tipping paper 40 is wrapped around the outer peripheral surfaces of the base material portion 10 , the cooling portion 20 , and the filter portion 30 .

[0127] There is no particular limitation on the shape of the tipping paper 40 , and the tipping paper may have, for example, a square or rectangular shape.

[0128] There is no particular limitation on the basis weight of the tipping paper 40 , but the basis weight is typically, for example, 32 gsm to 60 gsm, preferably 33 gsm to 55 gsm, and more preferably 34 gsm to 53 gsm.

[0129] There is no particular limitation on the air permeability of the tipping paper 40, and the air permeability is generally 0 CORESTA unit to 30,000 CORESTA units, preferably more than 0 CORESTA unit and not more than 10,000 CORESTA units. The air permeability is a value measured in accordance with ISO 2965:2009, and is the value of air passing through 1 cm in 1 minute when the pressure difference between the two surfaces of the paper is 1 kPa. 2 Gas flow rate per surface area (cm 3 ) is expressed as 1 CORESTA unit (1C.U.) is cm at 1 kPa. 3 / (min·cm 2 ).

[0130] The configuration of the tipping paper 40 is not particularly limited and can be of a general type, examples of which include those in which pulp is the main component. Usable pulps include wood pulps such as softwood pulp and hardwood pulp, as well as non-wood pulps commonly used for wrapping paper for tobacco products, such as flax pulp, sisal pulp, and esparto grass. The wrapping paper can be obtained by a papermaking process using one or more of these pulps. A single type of pulp can be used, or multiple types of pulps can be combined and used in any proportion.

[0131] Forms of pulp that can be used include chemical pulp, ground pulp, chemical ground pulp, and thermomechanical pulp, etc., which are obtained by kraft digestion, acid / neutral / alkaline sulfite digestion, and soda digestion, etc. Note that the tipping paper 40 can be manufactured by the manufacturing method described above or can be a commercial product.

[0132] In addition to the above materials, the tipping paper 40 may further include fillers. Examples thereof include metal carbonates (such as calcium carbonate and magnesium carbonate), metal oxides (such as titanium oxide, titanium dioxide, and aluminum oxide), metal sulfates (such as barium sulfate and calcium sulfate), metal sulfides (such as zinc sulfide), quartz, kaolin, talc, diatomaceous earth, gypsum, etc. In particular, calcium carbonate is preferably included from the perspectives of improving whiteness and opacity and increasing the heating rate. These fillers may be used alone, or two or more fillers may be used in combination.

[0133] In addition to the materials and filler materials described above, various additives may be added to the tipping paper 40. For example, a water resistance improver may be included to improve water resistance. This water resistance improver includes a wet strength agent (WS agent) and a sizing agent. Examples of wet strength agents include urea-formaldehyde resin, melamine-formaldehyde resin, and polyamide epichlorohydrin (PAE). Sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or greater.

[0134] A coating agent may be added to at least one of the two surfaces (ie, the front and rear surfaces) of the tipping paper 40. The coating agent is not particularly limited, but it is preferably a coating agent capable of forming a film on the surface and reducing liquid permeability.

[0135] A portion of the outer surface of the tipping paper 40 may be coated with a lip-releasing material. The lip-releasing material is a material configured to facilitate easy separation (substantially free of adhesion) between the lips and the tipping paper 40 when the user holds the filter portion 30 of the flavor inhalation article 1 in their mouth. The lip-releasing material may include, for example, ethylcellulose, methylcellulose, nitrocellulose, or the like. For example, the lip-releasing material may be applied to the outer surface of the tipping paper 40 by applying an ethylcellulose- or methylcellulose-based ink to the outer surface of the tipping paper 40.

[0136] [Cooling section 20]

[0137] The cooling portion 20 is provided adjacent to the base material portion 10 and the filter portion 30 and is a portion shaped such that a cross section of a cylinder or the like forms a hollow section (cavity) by wrapping with the sheet 21. The cooling portion 20 generates an aerosol by cooling the steam generated by heating the base material portion 10.

[0138] The cross section of the cooling portion 20 is substantially circular, and the circumference of the cooling portion can be appropriately changed to match the size of the product, but the circumference is preferably approximately the same as the circumference of the filter 31, which will be described later. It should be noted that when the cross section is not circular, if it is assumed to have an area equal to the cross-sectional area of ​​the circle, the circumference can be the circumference of the circle.

[0139] The centerline dimension of the cooling portion 20 can be appropriately adjusted to match the size of the product, but is typically 5 mm or greater, preferably 10 mm or greater, and more preferably 15 mm or greater. The centerline dimension of the cooling portion 20 is typically 35 mm or less, preferably 30 mm or less, and more preferably 25 mm or less. By setting the centerline dimension of the cooling portion 20 to be equal to or greater than the lower limit described above, a sufficient cooling effect can be ensured and a pleasant flavor can be achieved. By setting this dimension to be equal to or less than the upper limit described above, losses caused by the generated vapor and aerosol adhering to the sheet 21 can be suppressed.

[0140] For example, the cooling portion 20 is a paper tube molded by wrapping with a sheet 21 made of paper.

[0141] Specifically, the cooling section 20 is a paper tube (so-called spiral paper tube) molded by gluing together multiple sheets 21 of at least paper and spirally winding the sheets. The method for manufacturing the spiral paper tube makes it easy to mold a paper tube with a circular cross-section. By using a spiral paper tube for the cooling section 20, the strength of the cooling section 20 can be increased while the area of ​​the cooling section 20 can be reduced. Furthermore, by combining sheet members containing fragrance components, flavor components, pulverized tobacco products, etc. with paper and gluing these members together, a new smoking flavor can be imparted to the aerosol.

[0142] In addition, the cooling part 20 can be a paper tube molded by winding paper multiple times into a cylindrical shape, that is, a so-called straight paper tube. In the manufacturing method of the straight paper tube, the amount of paste for pasting paper can be reduced compared with the manufacturing method of the spiral paper tube.

[0143] The cooling portion 20 may be a paper tube formed by laminating a plurality of sheets 21 including at least paper. By laminating a plurality of sheets 21, the strength of the cooling portion 20 may be maintained even when the basis weight of each sheet 21 is small.

[0144] The thickness of the sheet 21 is not particularly limited, and the thickness may be, for example, 50 μm to 500 μm, or 100 μm to 250 μm. Note that the material of the sheet 21 is not particularly limited, and for example, the main component may be pulp, or any one of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil, or any combination thereof.

[0145] The cooling portion 20 is described as a portion molded by winding the sheet 21, but this is an example of a cylindrical member formed into a cylindrical shape, and the cooling portion is not limited to this configuration as long as the cross section is hollow. The cooling portion 20 can be molded from a pipe of synthetic resin or the like that already has a hollow cross section, for example.

[0146] The cooling portion 20 is provided with a plurality of through-holes 60 (also referred to in the art as "ventilation filters (Vf)") arranged concentrically in the circumferential direction. The through-holes 60 penetrate the sheet material 21. Examples of the shapes of the holes include polygons, rounded polygons, circles, and ovals. The through-holes 60 are located in an area where air can flow from outside the flavor inhalation article 1. In other words, they are located in an area that protrudes from the opening 142 when the flavor inhalation article 1 is held by the holding portion 140 of the inhalation device 100.

[0147] The presence of through-holes 60 allows the concentration of flavor components and aerosols to be adjusted during inhalation. Furthermore, the presence of these multiple through-holes 60 allows air to flow from the outside into cooling section 20 during inhalation, and can reduce the temperature of the vapor and air flowing in from base material section 10. Furthermore, the through-holes 60 are positioned within a region of 4 mm or greater from the boundary between cooling section 20 and filter section 30 toward the cooling section 20 side. This not only improves cooling capacity but also prevents the product (product) generated by heating from accumulating in cooling section 20, thereby increasing the amount of product delivered.

[0148] It should be noted that vapor generated with aerosol as condensation nuclei by heating the base material portion 10 comes into contact with air from the outside and is lowered in temperature, thereby being liquefied, which can promote the generation of aerosol.

[0149] When the plurality of through holes 60 concentrically present in the cooling portion 20 is considered as one group of through holes, there may be one group of through holes, or there may be two or more groups of through holes. When there are two or more groups of through holes, from the perspective of increasing the amount of delivered components produced by heating, the through holes of these groups are preferably not provided in an area less than 4 mm in the direction of the cooling portion 20 side from the boundary between the cooling portion 20 and the filter portion 30.

[0150] Furthermore, in the case where the flavor inhalation product 1 is in a form in which the base material portion 10, the cooling portion 20, and the filter portion 30 are wrapped with the tipping paper 40, it is preferable to provide a ventilation hole at a position just above the through-hole 60 provided in the cooling portion 20. When manufacturing such a flavor inhalation product 1, the tipping paper 40 provided with the ventilation hole overlapping with the through-hole 60 may be prepared for wrapping, but from the perspective of ease of production, it is preferable to manufacture the flavor inhalation product 1 without the through-hole 60, and then preferably form a hole penetrating both the cooling portion 20 and the tipping paper 40.

[0151] The area where the through-holes 60 are present is not particularly limited as long as, from the perspective of improving the delivery of the heated product, the area is 4 mm or more in the direction of the cooling portion 20 from the boundary between the cooling portion 20 and the filter portion 30. However, from the perspective of further improving the delivery of the product, the area is preferably 4.5 mm or more, more preferably 5.5 mm or more. Furthermore, from the perspective of ensuring the cooling function, the area where the through-holes 60 are present is preferably an area no more than 15 mm from the boundary between the cooling portion 20 and the filter portion 30, more preferably no more than 10 mm, and even more preferably no more than 7 mm.

[0152] Furthermore, with the boundary between the cooling portion 20 and the base material portion 10 as a reference, when the dimension of the cooling portion 20 in the centerline direction is 20 mm or more, from the perspective of ensuring the cooling function, the region where the through-holes 60 are present is preferably a region of at least 5 mm, more preferably a region of at least 10 mm, and even more preferably a region of at least 13 mm from the boundary between the cooling portion 20 and the base material portion 10 in the direction toward the cooling portion 20. Furthermore, from the perspective of improving the delivery of the component generated by heating, the region where the through-holes 60 are present is preferably no more than 16 mm, more preferably no more than 15.5 mm, even more preferably no more than 15 mm, and particularly preferably no more than 14.5 mm from the boundary between the cooling portion 20 and the base material portion 10.

[0153] The through-holes 60 are arranged so that when the automatic smoking machine draws air at a rate of 17.5 ml / s, the air inflow rate through the through-holes 60 is 10% to 90% by volume. The "air inflow rate" is the volumetric ratio of air flowing through the through-holes 60 when the flow rate of air drawn from the suction end is 100% by volume. The air inflow rate is preferably 50% to 80% by volume, and more preferably 55% to 75% by volume. This air inflow rate can be achieved by selecting the number of through-holes in each group of through-holes 60 from a range of 5 to 50, and selecting the diameter of the through-holes 60 from a range of 0.1 to 0.5 mm, or a combination of these selections.

[0154] The air inflow ratio can be measured by a method based on ISO9512 using a wound product measuring machine (eg, SODIMAX D74 / SODIM manufactured by SAS).

[0155] [Filter part 30]

[0156] Figure 3 are views showing examples of the configuration of the filter portion 30 according to the first embodiment, wherein (A) is a view showing one example of a cross section of II section, and (B) is a view showing one example of a cross section of II-II section. Figure 4 are views showing another example of the configuration of the filter portion 30 according to the first embodiment, wherein (A) is a view showing another example of the cross section of the II cross section, and (B) is a view showing another example of the cross section of the II-II cross section.

[0157] The filter portion 30 is formed in a columnar shape in which the dimension in the center line direction is greater than the width of the cross section. Therefore, the filter portion 30 is arranged so that the longitudinal direction is the center line direction.

[0158] The filter portion 30 includes a filter 31 through which aerosol passes, a low filter member 33 having a filtration rate lower than that of the filter 31, and a wrapping paper 35 that is interposed between the filter 31 and the tipping paper 40 and wrapped around the outer peripheral surface of the filter 31. The filter portion 30 is connected (coupled) to the cooling portion 20 by integrally wrapping the cooling portion 20 and the filter portion 30 with the tipping paper 40. Note that the wrapping paper 35 need not be provided.

[0159] The form of the wrapping paper 35 is not particularly limited, and the paper may include a seam including one or more adhesive lines. The adhesive may include a hot melt adhesive, and further, the hot melt adhesive may include polyvinyl alcohol. When the filter portion 30 is composed of two or more components, it is preferred that after wrapping each of the two or more components, the wrapping paper is further wrapped with another wrapping paper.

[0160] There is no particular limitation on the material of the wrapping paper 35 , and well-known materials can be used, and the wrapping paper may further include a filler such as calcium carbonate or the like.

[0161] There is no particular limitation on the thickness of the wrapping paper 35, and the thickness is usually 20 μm to 140 μm, preferably 30 μm to 130 μm, more preferably 30 μm to 120 μm.

[0162] There is no particular limitation on the basis weight of the wrapping paper 35, but the basis weight is generally 20 gsm to 100 gsm, preferably 22 gsm to 95 gsm, more preferably 23 gsm to 90 gsm.

[0163] There is no particular limitation on the air permeability of the wrapping paper 35, and the air permeability is generally 0 CORESTA unit to 30,000 CORESTA units, preferably more than 0 CORESTA unit and not more than 10,000 CORESTA units.

[0164] Furthermore, the wrapping paper 35 may be coated or uncoated, but is preferably coated with a desired material from the viewpoint of being able to impart functions other than strength and structural rigidity.

[0165] The cross section of the filter 31 of the filter portion 30 is substantially circular, and its circumference can be appropriately changed to match the size of the product, but examples of the circumference include 22-25 mm. It should be noted that when the cross section is not circular, if it is assumed to have the same area as its cross-sectional area, the circumference can be the circumference of the circle.

[0166] The size of the filter portion 30 in the centerline direction may be appropriately changed to match the size of the product, but is generally 5.0-30.0 mm, preferably 12.5-27.5 mm, more preferably 15.0-25.0 mm.

[0167] The airflow resistance per 10 mm size of the filter portion 30 in the centerline direction is not particularly limited, but is generally 0-100 mmH2O, preferably 10-80 mmH2O, more preferably 10-50 mmH2O.

[0168] For example, airflow resistance is measured using a filter airflow resistance measuring instrument manufactured by Cerulean Corporation according to the ISO standard method (ISO 6565). The airflow resistance of the filter portion 30 represents the air pressure difference between the first side and the second side when air at a predetermined air flow rate (17.5 cc / min) flows from the first side to the second side without passing through the sides of the filter portion 30. The unit is generally expressed in mmH2O.

[0169] The filter 31 is a paper filter molded by filling a sheet member, in which a passage through which aerosol can pass is formed. In other words, the filter 31 is a paper filter molded by filling a sheet member so as to ensure an aerosol passage path extending in the center line direction.

[0170] There is no particular limitation on the packing density of the sheet member constituting the filter 31, but the packing density is generally 90 to 720 mg / cm3 .like Figure 3 As shown in (A), the packing density of the sheet member in the area where the low filter member 33 is not provided is preferably 90-360 mg / cm 3 , more preferably 150-240 mg / cm 3 In addition, if Figure 3 As shown in (B), the packing density of the sheet member in the area where the low filter member 33 is provided is preferably 105-720 mg / cm 3 , more preferably 170-480 mg / cm 3 .

[0171] There are no particular restrictions on the material of the sheet member constituting the filter 31, as long as the general functions of the filter can be achieved, but it is preferred that the material be paper, such as pulp paper having pulp as a main component, or a non-woven fabric, and more preferably paper. Alternatively, polymer sheets, metal sheets, etc. can be used as the material of the sheet member constituting the filter 31. It should be noted that general functions of the filter that can be listed include regulating the amount of air mixed when inhaling aerosols, etc., reducing flavor, and reducing nicotine and tar, etc., but not all of these functions need to be provided. In addition, in heat-not-burn type flavor inhalation products 1 (which produce fewer components and tend to have a lower aerosol source 11 filling rate than cigarette products), an important function of the filter is to prevent the components contained in the flavor inhalation product 1 from falling out while controlling the filtering function.

[0172] The filter 31 is formed of a sheet member that is folded or wrinkled, gathered, etc. and filled to ensure an aerosol passage path extending in the center line direction. Specifically, as Figure 3 As shown in (A), the filter 31 is a paper filter filled with sheet members so that gaps are formed in the longitudinal direction of the filter portion 30 and the sheet members are gathered.

[0173] Here, “gathered” means a state in which the sheet member is filled so as to be horizontally folded back multiple times in the direction of the center line of the filter 31 .

[0174] The sheet member constituting the filter 31 may be one sheet or two or more sheets. In addition, as long as the aerosol passage path extending in the center line direction is ensured, there is no need to fold or tuck. Specifically, the filter 31 may be as follows: Figure 4 (A) shows a paper filter filled with a strip-shaped sheet member.

[0175] The lower filter member 33 is provided in the filter 31 , and has a filtering function that suppresses aerosol passing therethrough more than the filter 31 .

[0176] The number of the low filter member 33 can be one, or two or more. Specifically, a low filter member 33 can be provided in the filter 31, such as Figure 3 (B) or multiple low filter members 33 may be provided in the filter 31, as shown in FIG. Figure 4 (B) shown.

[0177] The shape of the outer periphery of the lower filter member 33 in cross section may be appropriately changed to match the shape of the product, but may be, for example, circular, elliptical, polygonal, or rounded polygonal.

[0178] Furthermore, the ratio of the area of ​​the lower filter member 33 to the area of ​​the filter portion 30 in a cross section is not particularly limited, but can be, for example, 15% to 50%, preferably 20% to 40%. Note that, when a plurality of lower filter members 33 are provided in the filter 31, it is preferable that the ratio of the total area of ​​the plurality of lower filter members 33 to the area of ​​the filter portion 30 in a single cross section is within the above range.

[0179] In the cross-section of the lower filter member 33, if its outer periphery is substantially circular, its circumference can be appropriately modified to match the product size, but is typically 6-15 mm, preferably 9-11 mm. The ratio of the circumference of the lower filter member 33 to the circumference of the filter 31 is typically 0.20 or greater but less than 0.70, preferably 0.35-0.50. It should be noted that when the cross-section is not circular, if the cross-section is assumed to have the same area as the cross-sectional area, the aforementioned circumference can be the circumference of that circle.

[0180] The size of the lower filter member 33 in the centerline direction can be appropriately changed according to the size of the product, but the size is preferably not larger than the size of the filter 31 in the centerline direction. In other words, it is preferred that the length of the lower filter member 33 along the longitudinal direction of the filter portion 30 is not longer than the length of the filter 31 along the longitudinal direction of the filter portion 30.

[0181] Furthermore, when the centerline dimension of the lower filter member 33 is smaller than the centerline dimension of the filter 31, the difference between the centerline dimension of the lower filter member 33 and the centerline dimension of the filter 31 is preferably 2 mm or greater. By making the centerline dimension of the lower filter member 33 smaller than the centerline dimension of the filter 31, the lower filter member 33 does not protrude from at least one end surface of the filter 31 and can have an appearance similar to that of an end surface of the filter 31 for a flavor inhalation product without the lower filter member 33. By making the centerline dimension of the lower filter member 33 smaller than the filter 31 by 2 mm or greater, the lower filter member 33 can be made invisible from at least one end of the filter 31.

[0182] The lower filter member 33 is preferably a hollow member with a hollow cross-section, with at least one end open in the centerline direction, and more preferably, both ends open in the centerline direction. By making the lower filter member 33 a hollow member with at least one end open in the centerline direction, the filtering function of passing aerosol is suppressed, and the efficiency of delivering the incense flavor can be improved. Furthermore, compared to a member with one end closed in the centerline direction, by making the lower filter member 33 a hollow member with both ends open in the centerline direction, the filtering function of passing aerosol is suppressed, and the efficiency of delivering the incense flavor can be improved.

[0183] If the lower filter member 33 is a hollow member with both ends open in the centerline direction, aerosol passing through the lower filter member 33 is not filtered at all. Filter rates lower than the filter 31 also include a filtration rate of "0%."

[0184] A specific example of the configuration of the lower filter member 33 will be described.

[0185] For example, the lower filter member 33 is molded into a tube having a hollow section in the cross section of a cylinder or the like by wrapping it with a sheet member made of the same material as the sheet member constituting the filter 31. Specifically, the lower filter member 33 is a paper tube molded by wrapping it with paper. By using the paper tube as the lower filter member 33, the material constituting the lower filter member 33 can be made substantially the same as the material constituting the filter 31.

[0186] The lower filter member 33 is a paper tube (so-called spiral paper tube) molded by gluing together a plurality of sheet members comprising at least paper and spirally winding the sheets. The method for manufacturing the spiral paper tube makes it easy to mold a paper tube with a circular cross-section. By adopting the spiral paper tube for the lower filter member 33, the strength of the lower filter member 33 can be improved while suppressing the ratio of the area of ​​the lower filter member 33 to the area of ​​the filter portion 30. Furthermore, a new smoking flavor can be given to the aerosol by combining a sheet member containing a flavoring component, a flavor component, a pulverized tobacco product, etc. with paper and gluing these components together.

[0187] In addition, the lower filter member 33 can be a paper tube molded by repeatedly rolling paper into a cylindrical shape, that is, a so-called straight paper tube. In the manufacturing method of the straight paper tube, the amount of paste used for pasting paper can be reduced compared to the manufacturing method of the spiral paper tube.

[0188] The low filter member 33 may be a paper tube molded by laminating a plurality of sheet members including at least paper. By laminating a plurality of sheet members, the strength of the low filter member 33 can be maintained even when the basis weight of each sheet member is small.

[0189] Please note that the lower filter member 33 is not limited to a paper tube molded by wrapping it with paper; it can also be formed from a tube made of, for example, a synthetic resin with a hollow cross-section. When the lower filter member 33 is a tube, the thickness of the tube is not particularly limited and is typically 50-500 μm, preferably 100-250 μm. For example, if sheet members are overlapped, the total thickness of the overlapping sheet members can be within the above range. By setting the tube thickness within the above range, deformation of the lower filter member 33 due to external pressure (such as from the filter 31) can be suppressed.

[0190] Although the low filtration member 33 is described as a hollow member having a hollow cross-section, its configuration is not limited to this configuration as long as the filtration rate is lower than the filtration rate of the filter 31. For example, the low filtration member 33 may be molded from a solid member having a solid cross-section, such as cellulose acetate fiber having a filtration rate lower than that of paper.

[0191] exist Figure 1 In the illustrated example, the shape of the end portion of the lower filter member 33 in the center line direction is a flat surface, but the shape is not limited thereto and does not necessarily need to be a flat surface.

[0192] Figure 5 are views showing another example of the longitudinal cross-section of the flavor inhalation article 1 according to the first embodiment, wherein (A) is a view showing a lower filter member 33 having a sharp second side, and (B) is a view showing a longitudinal cross-section of the flavor inhalation article 1 in which the lower filter member 33 whose width decreases from the first side toward the second side is provided.

[0193] For example, the shape of the end portion of the lower filter member 33 in the center line direction may be such that the end surface of the lower filter member 33 on the first side is a flat surface, and the end surface of the lower filter member 33 on the second side is sharp, as shown in FIG. Figure 5 (A). Further, for example, Figure 5 As shown in FIG. 2(B), the width of the lower filter member 33 in the second side region may be relatively smaller than that in the first side region.

[0194] Will refer to Figure 1 、 Figure 6 and Figure 7 A specific example of the arrangement of the lower filter member 33 will be described.

[0195] Figure 6 1 is a view showing another example of a longitudinal cross-section of the flavor inhalation product 1 according to the first embodiment, wherein (A) is a view showing a state in which the lower filter member 33 is positioned on the second side in the filter 31, and (B) is a view showing a state in which the lower filter member 33 is positioned near the center in the filter 31.

[0196] Figure 7 1 is a view showing another example of a longitudinal cross-section of the flavor inhalation product 1 according to the first embodiment, wherein (A) is a view showing a state in which a lower filter member 33 having the same size as the filter 31 in the centerline direction is positioned in the filter 31, and (B) is a view showing a state in which a plurality of lower filter members 33 are positioned in the filter 31.

[0197] Preferably, the lower filter member 33 is arranged such that the lower filter member 33 does not protrude from the end surface of the filter 31 on the second side.

[0198] exist Figure 1 In the illustrated example, the lower filter member 33, which is smaller than the size of the filter 31 in the centerline direction, is positioned on the first side (the side of the base material portion 10) of the filter 31. Specifically, the lower filter member 33 is disposed in the upstream region of the filter 31. By disposing the lower filter member 33 on the first side (the side of the base material portion 10) of the filter 31, it is possible to prevent the lower filter member 33 from being visible from the end surface of the filter 31 on the second side.

[0199] exist Figure 6 In the example shown in (A), the lower filter member 33, which is smaller than the filter 31 in the centerline direction, is positioned on the second side (downstream side) of the filter 31. Specifically, the lower filter member 33 is disposed in the area on the second side of the filter 31. The lower filter member 33 is disposed in the area on the second side (suction end) of the filter 31, thereby increasing the strength of the area of ​​the mouthpiece segment 50 that the user holds in their mouth.

[0200] exist Figure 6 In the example shown in (A), the second side end surface of the lower filter member 33 is positioned on the second side end surface of the filter 31, but the present invention is not limited thereto, and the positions of the two end surfaces do not need to match each other. For example, when the lower filter member 33 is positioned on the second side of the filter 31, the second side end surface of the lower filter member 33 can be separated from the second side end surface of the filter 31 by 2 mm or more. Since the second side end surface of the lower filter member 33 is separated from the second side end surface of the filter 31 by 2 mm or more, the lower filter member 33 can be prevented from being seen from the second side end surface of the filter 31 along the centerline direction of the filter portion 30.

[0201] The arrangement of the low filter member 33 , which is smaller than the size of the filter 31 in the center line direction, is not limited to the first side region or the second side region in the filter 31 .

[0202] exist Figure 6In the example shown in (B), the lower filter member 33, which is smaller than the filter 31 in the centerline direction, is positioned near the center of the filter 31 in the centerline direction. Specifically, the lower filter member 33 is positioned in the area near the center of the filter 31 in the centerline direction. Positioning the lower filter member 33 in the area near the center of the filter 31 increases the strength of the area corresponding to the user's teeth when the mouthpiece segment 50 is bitten.

[0203] The lower filter member 33 is not limited to the above-described configuration as long as the lower filter member 33 is arranged so as not to protrude from the end surface of the filter 31 on the second side.

[0204] like Figure 7 As shown in (A), a low filter member 33 having the same size as the filter 31 in the center line direction may be provided in the filter 31 .

[0205] Furthermore, when a plurality of lower filter members 33 are arranged, the arrangement of these lower filter members 33 is not limited to the following. Figure 4 (B) shows the same area in the centerline direction. Figure 7 As shown in (B), the lower filter member 33 may be provided in a plurality of regions in the filter 31 .

[0206] By increasing the ratio of the lower filter member 33 to the filter 31 , the aerosol filtration rate of the filter portion 30 can be reduced while increasing the strength of the mouthpiece segment 50 .

[0207] As described above, the flavor inhalation article 1 includes: a base material portion 10 including at least an aerosol source 11; a cooling portion 20 for cooling vapor generated by heating the base material portion 10 to generate an aerosol; a filter portion 30 through which the aerosol passes; and a tipping paper 40 wrapped around the outer peripheral surfaces of the base material portion 10, the cooling portion 20, and the filter portion 30. The filter portion 30 includes a filter 31, which is a paper filter filled with a sheet member, and a low filter member 33, which is a member provided on the filter 31 and has a filtration rate lower than that of the filter 31. Note that, from the perspective of making the size in the centerline direction more compact, the flavor inhalation article 1 does not need to have the cooling portion 20.

[0208] <Second embodiment>

[0209] Figure 8 1 are views showing a longitudinal cross-section of the flavor inhalation product 2 according to the second embodiment, wherein (A) is a view showing a state in which the lower filter member 33 is positioned on a first side in the filter 31, and (B) is a view showing a state in which the lower filter member 33 is positioned on a second side in the filter 31.

[0210] The flavor inhalation article 2 according to the second embodiment differs from the flavor inhalation article 1 according to the first embodiment in that the filter portion 230 corresponds to the filter portion 30. The differences from the first embodiment will be described below. In the first and second embodiments, the same reference numerals are used for the same components, and detailed descriptions thereof will be omitted.

[0211] The filter portion 230 includes a filter 31, which is a paper filter; an independent filter 32, which is an independent filter separate from the filter 31; a low filtration member 33 having a filtration rate lower than that of the filter 31; and a wrapping paper 35, which is interposed between the filter 31 and the tipping paper 40 and wrapped around the outer peripheral surface of the filter 31. The filter portion 230 is connected (coupled) to the cooling portion 20 by integrally wrapping the cooling portion 20 and the filter portion 230 with the tipping paper 40. Preferably, the filter 31 and the independent filter 32 are each wrapped with an independent wrapping paper 35 and then wrapped together with another independent wrapping paper 35.

[0212] The cross section of the individual filter 32 of the filter portion 230 is substantially circular, and its circumference can be appropriately changed to match the size of the product, but examples of the circumference include 22-27 mm. It should be noted that when the cross section is not circular, if it is assumed to have the same area as its cross-sectional area, the circumference can be the circumference of the circle.

[0213] It can be illustrated that the air resistance and size of the filter part 230 in the centerline direction are the same as those of the filter part 30. The shape and size of the filter 31 and the separate filter 32 can be appropriately adjusted so that the shape and size of the filter part 230 are within the above range.

[0214] As long as the separate filter 32 comprises a filter material and performs the general functions of a filter, the separate filter is not particularly limited. Typical filter functions include regulating the amount of air mixed in when inhaling an aerosol, reducing flavor, and reducing nicotine and tar, but not all of these functions need to be provided. Furthermore, in heat-not-burn sticks 1 (which produce fewer components and tend to have a lower aerosol source 11 filling rate than cigarette products), an important function of the filter is to prevent the aerosol source 11 from falling out while also controlling the filtering function. Note that the separate filter 32 may have a lower filtration rate and a higher hardness than the filter 31.

[0215] The filter material constituting the individual filter 32 is formed, for example, by molding a filler (such as cellulose acetate fiber, nonwoven fabric, and pulp paper) into a cylindrical shape. Alternatively, a paper filter filled with sheet-like pulp paper may be used. In addition to these fillers, activated carbon, sepiolite, palygorskite, zeolite, activated carbon fiber, activated alumina, sepiolite-mixed paper, silica gel, inorganic adsorbents (such as activated clay, vermiculite, and diatomaceous earth), pulp, various fibers, and polymer porous bodies (such as ion exchange resins) may be used.

[0216] There is no particular limitation on the packing density of the filter material constituting the individual filter 32, but the packing density is generally 90 to 360 mg / cm 3 , preferably 150-240mg / cm 3 .

[0217] exist Figure 8 In the example shown in (A), the filter section 230 includes a separate filter 32 connected to the second side of the cooling section 20, and a filter 31 positioned on the second side of the separate filter 32. In other words, in the filter section 230, the separate filter 32 is positioned on the upstream side, and the filter 31 is positioned on the downstream side. A lower filter member 33, which is smaller than the centerline size of the filter 31, is arranged on the first side (the side facing the base material portion 10) of the filter 31. Specifically, the lower filter member 33 is arranged in the upstream area of ​​the filter 31.

[0218] like Figure 8 As shown in FIG. 2B , a lower filter member 33 having a smaller size than the filter 31 in the centerline direction may be provided on the second side (downstream side) of the filter 31. Specifically, the lower filter member 33 may be provided in the region of the second side of the filter 31. When the lower filter member 33 is positioned on the second side of the filter 31, the end surface of the lower filter member 33 on the second side is preferably separated from the end surface of the filter 31 on the second side by 2 mm or more.

[0219] The configuration of the filter portion 230 is not limited to Figure 8 (A) and Figure 8 (B) shows an example, and the positional relationship between the filter 31 and the separate filter 32 may be changed.

[0220] Figure 9 1 is a view showing another example of a longitudinal cross-section of the flavor inhalation product 2 according to the second embodiment, wherein (A) is a view showing a state in which the lower filter member 33 is positioned on a first side in the filter 31, and (B) is a view showing a state in which the lower filter member 33 is positioned on a second side in the filter 31.

[0221] The filter portion 230 has a filter 31 connected to the second side of the cooling portion 20 and a separate filter 32 positioned on the second side of the filter 31. In other words, in the filter unit 230, the filter 31 may be positioned on the upstream side, and the separate filter 32 may be positioned on the downstream side.

[0222] A low filter member 33 having a smaller size than the filter 31 in the center line direction may be provided on the first side (the base material portion 10 side) in the filter 31, as shown in FIG. Figure 9 (A) and can be provided on the second side (downstream side) of the filter 31, as shown in FIG. Figure 9 Specifically, the lower filter member 33 may be provided in the area of ​​the second side of the filter 31 .

[0223] As described above, the filter portion 230 of the flavor inhalation article 2 according to the second embodiment includes the filter 31 as a paper filter, the separate filter 32 as an independent filter separate from the filter 31, and the low filter member 33 having a filtration rate lower than that of the filter 31. The presence of the separate filter 32 in addition to the filter 31 can diversify the filtration function of the filter portion 230. The low filter member 33 exists in the filter 31 and has a lower hardness than the separate filter 32, thereby increasing the strength of the area that the user holds in his or her mouth.

[0224] Note that in the above example, the filter portion 230 has a dual structure including the separate filter 32 in addition to the filter 31 as a paper filter, but is not limited thereto. In addition to the filter 31 as a paper filter, the filter portion 230 may also have two or more types of filters.

[0225] <Third embodiment>

[0226] Figure 10 3 and 4. The diagrams are views showing a longitudinal cross-section of a flavor inhalation product 3 according to a third embodiment, wherein (A) is a view showing a state in which a lower filter member 33 is positioned on a first side of an aerosol regulator 34, and (B) is a view showing a state in which a lower filter member 33 is positioned on a second side of an aerosol regulator 34.

[0227] The flavor inhalation article 3 according to the third embodiment differs from the flavor inhalation article 1 according to the first embodiment in that the filter portion 330 corresponds to the filter portion 30. The differences from the first embodiment will be described below. In the first and third embodiments, the same reference numerals are used for the same components, and detailed descriptions thereof will be omitted.

[0228] The filter portion 330 includes a filter 31, which is a paper filter; a low filter member 33, which has a filtration rate lower than that of the filter 31; an aerosol regulator 34 for regulating aerosols; and a wrapping paper 35, which is present between the filter 31 and the tipping paper 40 and is wrapped around the outer peripheral surface of the filter 31. The filter portion 330 is connected (coupled) to the cooling portion 20 by integrally wrapping the cooling portion 20 and the filter portion 330 with the tipping paper 40. It should be noted that the wrapping paper 35 does not need to be provided.

[0229] The aerosol regulator 34 is disposed inside the filter portion 330 .

[0230] The position of the aerosol regulator 34 in the longitudinal cross-section of the filter portion 330 is not particularly limited, but it is preferable that the aerosol regulator is arranged linearly with the lower filter member 33 in the centerline direction. In other words, the aerosol regulator 34 is preferably arranged linearly in the longitudinal direction of the lower filter member 33 and the filter portion 330.

[0231] Specifically, the aerosol regulator 34 is preferably provided at a position corresponding to the lower filter member 33, such as a position through which aerosol having passed through the lower filter member 33 passes, or a position through which aerosol having hit the aerosol regulator 34 passes through the lower filter member 33. Providing the aerosol regulator 34 at a position corresponding to the lower filter member 33 allows for improved delivery efficiency of the regulated aerosol.

[0232] exist Figure 10 In the example shown in (A), the filter portion 330 includes an aerosol modifier 34, which is arranged linearly with the lower filter member 33 on the second side (downstream side) of the lower filter member 33 in the centerline direction. The aerosol modifier 34 is arranged linearly with respect to the second side (the suction port end side) of the lower filter member 33 in the longitudinal direction of the filter portion 330, thereby allowing aerosol that has passed through the lower filter member 33 to effectively contact the aerosol modifier 34 during inhalation. Furthermore, effectively bringing the aerosol into contact with the aerosol modifier 34 can improve the aerosol modulation effect.

[0233] In addition, if Figure 10As shown in FIG. 2(B), the filter portion 330 may include an aerosol regulator 34, which is arranged linearly with the lower filter member 33 in the centerline direction on the first side (upstream side) of the lower filter member 33. The aerosol regulator 34 is arranged linearly on the first side (the base material portion 10 side) relative to the lower filter member 33 in the longitudinal direction of the filter portion 330 so that the regulated aerosol can pass through the lower filter member 33 during inhalation. By being arranged in the area on the first side (upstream side) of the filter portion 330, the aerosol can be brought into contact with the aerosol regulator 34 before being fully filtered, thereby improving the aerosol regulation effect.

[0234] The aerosol regulator 34 is a destructible capsule from which the content liquid containing the fragrance component is released by applying an external force.

[0235] The aerosol regulator 34 is preferably embedded in a position such that the contents do not leak out of the first and second side end surfaces of the filter 31. In other words, the aerosol regulator 34 is preferably provided in a position such that diffusion of the contents is stored within the filter portion 330.

[0236] The aerosol modifier 34 includes contents containing at least one of a flavor component and a fragrance component, and a capsule body containing these contents. The aerosol modifier 34 is crushed by the user to break the capsule body and release the contents. Crushing involves, for example, pressing the wrapping paper 35 and tipping paper 40 with the thumb and index finger to compress the aerosol modifier 34, which acts as a destructible capsule.

[0237] Examples of flavor components include citric acid, tartaric acid, monosodium glutamate, neotame, thaumatin, stevia, sorbitol, xylitol, erythritol, aspartame, rutin, hesperidin, oxalic acid, tannic acid, catechin, naringin, quinine, quinic acid, limonin, caffeine, capsaicin, vitamins, amino acids, polyphenols, alginic acid, flavonoids, lecithin, etc. The flavor component is preferably liquid or substantially soluble in the mouth.

[0238] There is no particular restriction on the type of flavor component, and powdered spices, oil-based spices etc. can be enumerated as its example.The example of main powdered spices includes chamomile, fenugreek, menthol, peppermint, cinnamon, herb etc.The example of main oil-based spices includes lavender, cinnamon, cardamom, celery, cloves, West Indian bittersweet tree, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon, orange, peppermint, cassia bark, caraway, cognac (cognac), jasmine, chamomile, menthol, low-grade cinnamon (cassia), ylang-ylang, sage, spearmint, fennel, Spanish sweet pepper, ginger, anise, coriander, coffee, tobacco etc.Flavor component can be used alone, or two or more flavor components can be used in combination.When using powdered spices, particle diameter is preferably 500 μm or less.Flavor component is preferably liquid or substantially soluble in the oral cavity.

[0239] In addition to at least one of the taste component and the flavor component, the contents may further comprise a colorant, such as a synthetic colorant or a natural colorant. The colorant is preferably a food additive, such as Red No. 3, Red No. 106, beta-carotene, copper chlorophyll, gardenia blue pigment, Yellow No. 4, and the like.

[0240] The content may further include a solvent for dissolving a flavor component, a flavor component, and a colorant. Examples of the solvent may include medium-chain fatty acid triglycerides, glycerol, propylene glycol, water, ethanol, and the like.

[0241] When the contents are liquid or gel, the viscosity of the contents is 20 MPa·s or greater, preferably 30 MPa·s or greater, to allow them to penetrate the filter 31 and the wrapping paper 35. Furthermore, the viscosity of the contents is 120 MPa·s or less, preferably 90 MPa·s or less. A viscosity of the contents at or above the aforementioned lower limit allows the contents to be dispersed into the flavor inhalation article 3 and impart a new smoking flavor to the aerosol. Furthermore, a viscosity of the contents at or above the aforementioned upper or lower limit prevents the contents from penetrating the filter 31 and the wrapping paper 35 too quickly, and prevents the permeated contents from seeping out of the flavor inhalation article 3 when the flavor inhalation article 3 is in use.

[0242] When the amount of liquid per unit cross-sectional area of ​​the filter 31 is less than 0.2 μl / mm 2 On the other hand, when the amount of liquid per unit cross-sectional area of ​​the filter 231 is greater than 2.2 μl / mm 2 When the filter 31 is filled, there is a risk that the contents will reach the end surface of the second side of the flavor inhalation product 3 and adhere to the user. Therefore, the amount of liquid per unit cross-sectional area of ​​the filter 31 is 0.2-2.2 μl / mm 2, preferably 0.3-0.7μl / mm 2 .

[0243] Examples of the material of the capsule body include starch, dextrin, polysaccharides, agar, gellan gum, gelatin, polyvinyl chloride, polyvinylidene chloride, polystyrene, styrene-acrylonitrile copolymer, styrene-butadiene-acrylonitrile copolymer, polyethylene, polypropylene, cellulose acetate, polyethylene terephthalate, polyamide, ethylene-acrylic acid plastic, ethylene-vinyl acetate plastic, ethylene-vinyl alcohol plastic, various natural gelling agents, etc. In addition to the above materials, the capsule body may also contain a flavor component, a plasticizer, a colorant, etc.

[0244] If the aerosol regulator 34 is a destructive capsule, its shape is not particularly limited and may be spherical, cylindrical, or truncated conical. Examples of destructive capsules include spherical shapes with a diameter of 2.5 to 4.0 mm and cylindrical shapes with a centerline dimension of 5 to 10 mm and a diameter of 5 to 7 mm. Furthermore, when multiple spherical destructive capsules are arranged, these destructive capsules preferably have a diameter of 3.5 mm or less.

[0245] The manufacturing method of the destructible capsule is not particularly limited, but it is preferable to use a dropping method which can manufacture a destructible capsule having a seamless capsule body without, for example, a seam.

[0246] The aerosol regulator 34 is described as a destructible capsule from which the contents including the fragrance component are released by application of an external force, but the aerosol regulator is not limited thereto as long as the aerosol regulator regulates the aerosol.

[0247] For example, the aerosol regulator 34 may be an adsorbent having the function of adsorbing and removing substances generated by heating the base material portion 10. The adsorbent is not particularly limited and may include activated carbon, sepiolite, palygorskite, zeolite, activated carbon fiber, activated alumina, sepiolite mixed paper, silica gel, activated clay, vermiculite, diatomaceous earth, ion exchange resin, etc. As the aerosol regulator 34, a granular adsorbent may be added to the filter 31, and an adsorbent granulated into a spherical shape with a diameter of 2.5 to 4.0 mm, for example, may be placed on the filter 31.

[0248] Alternatively, for example, the aerosol conditioner 34 may be a fragrance carrier that releases fragrance components when moisture or heat is applied. The fragrance carrier is not particularly limited, and examples include carriers that carry fragrance components on supports such as dextrin and cyclodextrin. As the aerosol conditioner 34, a sheet-like fragrance carrier may be placed on the filter, or a fragrance carrier granulated into a spherical shape with a diameter of 2.5-4.0 mm may be placed on the filter 31.

[0249] As described above, the filter portion 330 of the flavor inhalation article 3 according to the third embodiment includes the filter 31, which is a paper filter; the low filter member 33, which has a filtration rate lower than that of the filter 31; and the aerosol modifier 34, which modifies the aerosol. By including the aerosol modifier 34 in the filter portion 330, the aerosol generated by the base material portion 10 can be modulated during inhalation. Furthermore, the aerosol modifier 34 is a destructible capsule from which the content liquid containing the flavoring component is released by applying an external force, thereby enabling the aerosol to be imparted with a new smoking flavor.

[0250] <Fourth embodiment>

[0251] Figure 11 is a view showing a longitudinal cross-section of a flavor inhalation article 4 according to a fourth embodiment.

[0252] The flavor inhalation article 4 according to the fourth embodiment differs from the flavor inhalation article 1 according to the first embodiment in its use. The flavor inhalation article 4 according to the fourth embodiment differs from the flavor inhalation article 1 according to the first embodiment in the mouthpiece portion 450 corresponding to the mouthpiece segment 50, and the communication hole 460 corresponding to the through hole 60. The differences from the first embodiment will be described below. In the first and fourth embodiments, identical components are denoted by identical reference numerals, and detailed descriptions thereof will be omitted.

[0253] The flavor inhalation article 4 is a burning-type flavor inhalation article. This flavor inhalation article is used by burning the end surface of a first side opposite to a second side, which is the end side where the user holds the article in their mouth for inhalation. The aerosol source 11 included in the base material portion 10 generates vapor through heating accompanying the burning, generating an aerosol within the vapor.

[0254] The cross section of the flavor inhalation article 4 is substantially circular, and its circumference can be appropriately changed to match the size of the product, but the circumference is generally 16-27 mm, preferably 22-25 mm. It should be noted that when the cross section is not circular, if it is assumed to have the same area as its cross-sectional area, the circumference can be the circumference of the circle.

[0255] The size of the flavor inhalation article 4 in the centerline direction can be appropriately changed to match the size of the product, but is generally 60-120 mm, preferably 80-100 mm.

[0256] The suction nozzle portion 450 is constituted by the filter portion 30 .

[0257] The size of the nozzle portion 450 in the centerline direction can be appropriately changed to match the size of the product, but is generally 20-40 mm, preferably 25-30 mm.

[0258] Furthermore, the mouthpiece portion 450 is provided with a plurality of communication holes 460 concentrically arranged in the circumferential direction. The communication holes 460 are holes for connecting air flowing in from the ventilation holes provided in the tipping paper 40 to the gaps in the filter 31. By adjusting the amount of air flowing in through the communication holes 460, the concentration of the aerosol inhaled by the user can be adjusted.

[0259] Furthermore, when the filter portion 30 of the mouthpiece portion 450 is in a form in which the filter 31 is wrapped by the wrapping paper 35 and the tipping paper 40, it is preferred that at least the wrapping paper 35 be provided with the communicating holes 460 at positions corresponding to the ventilation holes provided in the tipping paper 40. When manufacturing the flavor inhalation product 4 having such a mouthpiece portion 450, the tipping paper 40 may be wound so that the communicating holes 460 overlap with the ventilation holes provided in the tipping paper 40. However, from the perspective of ease of production, it is preferred to manufacture the flavor inhalation product 4 without the communicating holes 460 and then simultaneously form holes in the mouthpiece portion 450 and the tipping paper 40.

[0260] From the perspective of improving air inflow efficiency, the area where the connecting holes 460 exist is preferably an area on the filter 31 where the filling density of the sheet member constituting the filter 31 is relatively low, or in other words, an area on the filter 31 where the low filter member 33 is not provided.

[0261] exist Figure 11 In the example shown, the lower filter member 33, which is larger than the filter 31 in the centerline direction, is positioned on the first side (the base material portion 10 side) of the filter 31, and the communication hole 460 is provided in an area of ​​the filter 31 where the lower filter member 33 is not provided. Specifically, the communication hole 460 is provided in an area on the downstream side of the lower filter member 33.

[0262] The communication hole 460 is not limited to the above configuration as long as the communication hole is provided in a region of the filter 31 where the lower filter member 33 is not provided.

[0263] Figure 12 3 is a view showing another example of a longitudinal cross-section of the flavor inhalation product 4 according to the fourth embodiment, wherein (A) is a view showing a state in which the lower filter member 33 is positioned on the second side in the filter 31, (B) is a view showing a state in which the lower filter member 33 is positioned near the center in the filter 31, and (C) is a view showing a state in which a plurality of lower filter members 33 are positioned in the filter 31.

[0264] When the lower filter member 33, which is smaller than the filter 31 in the center line direction, is positioned on the second side (downstream side) in the filter 31, the communication hole 460 may be provided in a region on the upstream side relative to the lower filter member 33, as shown in FIG. Figure 12 (A) shown.

[0265] Furthermore, when the lower filter member 33 having a smaller size than the filter 31 in the centerline direction is positioned near the center of the filter 31 in the centerline direction, the communication hole 460 may be provided in a region on the upstream side relative to the lower filter member 33, as shown in FIG. Figure 12 Note that the communication hole 460 may be provided in a region on the downstream side of the lower filter member 33 .

[0266] In addition, when the lower filter members 33 are provided in a plurality of regions of the filter 31, the communication holes 460 may be provided in regions of the filter 31 where the lower filter members 33 are not provided, such as Figure 12 (C) The communication hole 460 may be provided in any region of the upstream side, the center side, and the downstream side as long as the lower filter member 33 is not provided in the region.

[0267] As described above, the flavor inhalation article 4 according to the fourth embodiment includes: a base material portion 10 including at least an aerosol source 11; a filter portion 30 through which the aerosol passes; and a tipping paper 40 wrapped around the base material portion 10 and the filter portion 30. The filter portion 30 includes a filter 31, which is a paper filter filled with a sheet member, and a low filter member 33, which is a member disposed on the filter 31 and has a filtration rate lower than that of the filter 31. When a paper filter is used for a burning-type flavor inhalation article, the efficiency of delivering the smoking flavor can be improved.

[0268] <Fifth embodiment>

[0269] Figure 13 1 are views showing a longitudinal cross-section of a flavor inhalation product 5 according to a fifth embodiment, wherein (A) is a view showing a state in which a lower filter member 33 is positioned on a first side in a filter 31, and (B) is a view showing a state in which the lower filter member 33 is positioned on a second side in the filter 31.

[0270] The flavor inhalation article 5 according to the fifth embodiment differs from the flavor inhalation article 4 according to the fourth embodiment in that the filter portion 530 corresponds to the filter portion 30. The differences from the fourth embodiment will be described below. In the fourth and fifth embodiments, the same reference numerals are used for the same components, and detailed descriptions thereof will be omitted.

[0271] The filter portion 530 includes a filter 31 as a paper filter, an individual filter 32 as an independent filter separate from the filter 31, a low filter member 33 having a filtration rate lower than that of the filter 31, and a wrapping paper 35 interposed between the filter 31 and the tipping paper 40 and wrapped around the outer peripheral surface of the filter 31. The filter portion 530 is connected (coupled) to the base material portion 10 by integrally wrapping the base material portion 10 and the filter portion 230 with the tipping paper 40. Preferably, the filter 31 and the individual filter 32 are each wrapped with an individual wrapping paper 35 and then wrapped together with another individual wrapping paper 35.

[0272] It can be illustrated that the configuration of the individual filter 32 of the filter portion 530 is the same as the configuration of the individual filter 32 included in the filter portion 230 according to the second embodiment. The shapes and sizes of the filter 31 and the individual filter 32 can be appropriately adjusted so that the shape and size of the filter portion 530 are within the above range.

[0273] The filter portion 530 has a separate filter 32 connected to the second side of the base material portion 10 and a filter 31 positioned on the second side of the separate filter 32. The separate filter 32 is positioned on the upstream side, and the filter 31 is positioned on the downstream side. Figure 13 As shown in FIG. 5A , the lower filter member 33 having a smaller size than the filter 31 in the center line direction may be provided on the first side (upstream side) of the filter 31, and the communication hole 460 may be provided in the region on the downstream side relative to the lower filter member 33. Figure 13 As shown in (B), the lower filter member 33 having a smaller size than the filter 31 in the centerline direction may be provided on the second side (downstream side) of the filter 31 , and the communicating hole 460 may be provided in the upstream region relative to the lower filter member 33 .

[0274] The configuration of the filter portion 530 is not limited to Figure 13 (A) and Figure 13 (B) shows an example, and the positional relationship between the filter 31 and the separate filter 32 may be changed.

[0275] Figure 14 1 are views showing a longitudinal cross-section of a flavor inhalation product 5 according to a fifth embodiment, wherein (A) is a view showing a state in which a lower filter member 33 is positioned on a first side in a filter 31, and (B) is a view showing a state in which the lower filter member 33 is positioned on a second side in the filter 31.

[0276] The filter portion 530 has a filter 31 connected to the second side of the base material portion 10 and a separate filter 32 positioned on the second side of the filter 31. The filter 31 is positioned on the upstream side, and the separate filter 32 is positioned on the downstream side. Figure 14 As shown in FIG. 5A , the lower filter member 33 having a smaller size than the filter 31 in the center line direction may be provided on the first side (upstream side) of the filter 31, and the communication hole 460 may be provided in the region on the downstream side relative to the lower filter member 33. Figure 14 As shown in (B), the lower filter member 33 having a smaller size than the filter 31 in the centerline direction may be provided on the second side (downstream side) of the filter 31 , and the communicating hole 460 may be provided in the upstream region relative to the lower filter member 33 .

[0277] As described above, the filter portion 530 of the flavor inhalation article 5 according to the fifth embodiment includes the filter 31, which is a paper filter; the separate filter 32, which is an independent filter separate from the filter 31; and the low filter member 33 having a filtration rate lower than that of the filter 31. Note that in the above example, the filter portion 530 has a dual structure including the separate filter 32 in addition to the filter 31, which is a paper filter, but is not limited thereto. The filter portion 230 may also include two or more types of filters in addition to the filter 31, which is a paper filter.

[0278] <Sixth embodiment>

[0279] Figure 15 3 and 4. are views showing a longitudinal cross-section of a flavor inhalation product 6 according to a sixth embodiment, wherein (A) is a view showing a state in which a lower filter member 33 is positioned on a first side of an aerosol regulator 34, (B) is a view showing a state in which a lower filter member 33 is positioned on a second side of an aerosol regulator 34, and (C) is a view showing a state in which a lower filter member 33 is positioned on a first side and a second side of an aerosol regulator 34.

[0280] The flavor inhalation article 6 according to the sixth embodiment differs from the flavor inhalation article 4 according to the fourth embodiment in that the filter portion 630 corresponds to the filter portion 30. The differences from the fourth embodiment will be described below. In the fourth and sixth embodiments, the same reference numerals are used for the same components, and detailed descriptions thereof will be omitted.

[0281] The filter portion 630 includes a filter 31, which is a paper filter; a low filter member 33, which has a filtration rate lower than that of the filter 31; an aerosol regulator 34 for regulating aerosols; and a wrapping paper 35, which is present between the filter 31 and the tipping paper 40 and is wrapped around the outer peripheral surface of the filter 31. The filter portion 330 is connected (coupled) to the base material portion 10 by integrally wrapping the base material portion 10 and the filter portion 630 with the tipping paper 40. It should be noted that the wrapping paper 35 does not need to be provided.

[0282] It can be exemplified that the configuration of the aerosol regulator 34 of the filter portion 630 is the same as the configuration of the aerosol regulator 34 included in the filter portion 330 according to the third embodiment.

[0283] When the filter portion has the aerosol regulator 34 provided on the second side (downstream side) of the lower filter member 33 linearly with the lower filter member 33 in the center line direction, the communication hole 460 may be provided between the lower filter member 33 and the aerosol regulator 34, as shown in FIG. Figure 15 (A) In addition, the communication hole 460 may be provided in a region on the downstream side of the aerosol regulating agent 34 .

[0284] In addition, when the filter portion has the aerosol regulator 34 provided on the first side (upstream side) of the lower filter member 33 linearly with the lower filter member 33 in the center line direction, the communication hole 460 may be provided in the region between the lower filter member 33 and the aerosol regulator 34, as shown in FIG. Figure 15 (B) Alternatively, the communication hole 460 may be provided in a region upstream of the aerosol regulating agent 34 .

[0285] In addition, when the filter portion has the aerosol regulator 34 disposed linearly with the plurality of lower filter members 33 on the first side (upstream side) and the second side (downstream side) of the lower filter member 33 in the center line direction, the communication hole 460 may be disposed in the region between the lower filter member 33 and the aerosol regulator 34, as shown in FIG. Figure 15 (C) shown.

[0286] As described above, the filter portion 630 of the flavor inhalation article 6 according to the sixth embodiment includes the filter 31, which is a paper filter, the low filter member 33, which has a filtration rate lower than that of the filter 31, and the aerosol regulator 34 for regulating aerosol. By having the aerosol regulator 34 in the filter portion 330, the aerosol generated by the base material portion 10 during inhalation can be regulated.

[0287] <Overview>

[0288] It should be noted that the present disclosure includes the following features.

[0289] (1) A flavor inhalation product comprising: a base material portion including an aerosol source; and a filter portion through which aerosol generated in the base material portion passes, wherein the filter portion has: a paper filter filled with a sheet member so as to form gaps in a longitudinal direction of the filter portion; and a low filter member provided in the paper filter and having a filtration rate lower than that of the paper filter.

[0290] (2) The flavor inhalation product according to (1), wherein the paper filter is a filter in which the sheet member is gathered.

[0291] (3) The flavor inhalation product according to (2), wherein the packing density of the sheet member is 90 mg / cm 3 Up to 720g / cm 3 .

[0292] (4) The flavor inhalation article according to any one of (1) to (3), wherein the low filter member is a hollow member with at least one end in the longitudinal direction being open.

[0293] (5) The flavor inhalation product according to (4), wherein the lower filter member is a hollow member with both ends in the longitudinal direction being open.

[0294] (6) The flavor inhalation product according to (4), wherein the filter member comprises at least paper.

[0295] (7) The flavor inhalation product according to (6), wherein the low filter member is a straight paper tube formed by cylindrically winding paper or a spiral paper tube formed by obliquely winding strip-shaped paper.

[0296] (8) The flavor inhalation article according to any one of (1) to (7), wherein the length of the lower filter member along the longitudinal direction is shorter than the length of the paper filter along the longitudinal direction.

[0297] (9) The flavor inhalation article according to (8), wherein a difference between a length of the lower filter member in the longitudinal direction and a length of the paper filter in the longitudinal direction is 2 mm or more.

[0298] (10) The flavor inhalation product according to (8), wherein the lower filter member is positioned on the downstream end side of the paper filter, and an end surface of the lower filter member on the downstream end side is separated from an end surface of the paper filter on the downstream end side by 2 mm or more.

[0299] (11) The flavor inhalation product according to (8), wherein the lower filter member is provided on the side of the base material portion in the paper filter.

[0300] (12) The flavor inhalation article according to any one of (1) to (7), wherein the length of the lower filter member along the longitudinal direction is shorter than the length of the paper filter along the longitudinal direction.

[0301] (13) The flavor inhalation article according to any one of (1) to (12), wherein the ratio of the circumference of the lower filter member to the circumference of the paper filter is at least 0.2 but less than 0.7.

[0302] (14) The flavor inhalation product according to any one of (1) to (13), wherein the airflow resistance of the paper filter is 0 [mmH2O / 10mm] to 100 [mmH2O / 10mm].

[0303] (15) The flavor inhalation product according to any one of (1) to (14), wherein an aerosol regulator for regulating the aerosol is provided in the paper filter.

[0304] (16) The flavor inhalation product according to (15), wherein the aerosol regulator is a destructible capsule, and the content liquid containing the flavor component is released from the destructible capsule by applying an external force.

[0305] (17) The flavor inhalation article according to (15), wherein the aerosol regulator is arranged linearly with the lower filter member in the longitudinal direction.

[0306] (18) The flavor inhalation article according to (17), wherein the aerosol regulator is linearly arranged on the suction end side relative to the lower filter member in the longitudinal direction.

[0307] (19) The flavor inhalation article according to (17), wherein the aerosol regulator is linearly arranged on the side of the base material portion in the longitudinal direction relative to the lower filter member.

[0308] (20) The flavor inhalation article according to any one of (1) to (19), wherein the filter portion has a cylindrical member molded into a cylindrical shape between the base material portion and the paper filter, and the circumference of the cylindrical member is substantially the same as the circumference of the paper filter.

[0309] The invention according to (21) is the flavor inhalation product according to (20), wherein the flavor inhalation product includes a plugging paper wrapped on the outer peripheral surface of the base material part and the filter part, wherein the plugging paper has a ventilation hole, which is formed at a position corresponding to the cylindrical member or the paper filter, and air flows into the ventilation hole from the outside.

[0310] List of Reference Numerals

[0311] 1, 2, 3, 4, 5, 6...flavor inhalation product, 10...base material portion, 11...aerosol source, 20...cooling portion, 30, 230, 330, 430, 530, 650...filter portion, 31...filter, 32...separate filter, 33...low filtration member, 34...destructive capsule, 35...wrapping paper, 40...tipping paper, 50...mouthpiece portion, 60...through hole, 460...connecting hole

Claims

1. A flavor inhalation product comprising: a base material portion, the base material portion including an aerosol source; as well as a filter portion through which the aerosol generated in the base material portion passes, wherein The filter portion has: a paper filter filled with a sheet member so as to form a gap in a longitudinal direction of the filter portion; and a low filter member that is provided in the paper filter and has a filtration rate lower than that of the paper filter.

2. The flavor inhalation product according to claim 1, wherein The paper filter is a filter in which the sheet members are gathered.

3. The flavor inhalation product according to claim 2, wherein The packing density of the sheet member is 90 mg / cm 3 Up to 720 g / cm 3 .

4. The flavor inhalation product according to any one of claims 1 to 3, wherein The lower filter member is a hollow member with at least one end in the longitudinal direction being open.

5. The flavor inhalation product according to claim 4, wherein The lower filter member is a hollow member with both ends in the longitudinal direction being open.

6. The flavor inhalation product according to claim 4, wherein The lower filter member comprises at least paper.

7. The flavor inhalation product according to claim 6, wherein The lower filter member is a straight paper tube formed by cylindrically winding paper or a spiral paper tube formed by obliquely winding strip-shaped paper.

8. The flavored inhalation product according to any one of claims 1 to 7, wherein The length of the lower filter member along the longitudinal direction is shorter than the length of the paper filter along the longitudinal direction.

9. The flavor inhalation product according to claim 8, wherein A difference between a length of the lower filter member in the longitudinal direction and a length of the paper filter in the longitudinal direction is 2 mm or more.

10. The flavor inhalation product according to claim 8, wherein The lower filter member is positioned on the downstream end side of the paper filter, and an end surface of the lower filter member on the downstream end side is separated from an end surface of the paper filter on the downstream end side by 2 mm or more.

11. The flavor inhalation product according to claim 8, wherein The lower filter member is provided on the base material portion side in the paper filter.

12. The flavored inhalation product according to any one of claims 1 to 7, wherein The length of the lower filter member along the longitudinal direction is the same as the length of the paper filter along the longitudinal direction.

13. The flavored inhalation product according to any one of claims 1 to 12, wherein The ratio of the outer diameter of the lower filter member to the outer diameter of the paper filter is at least 0.2 but less than 0.

7.

14. The flavored inhalation product according to any one of claims 1 to 13, wherein The air flow resistance of this paper filter is 0 [mmH2O / 10 mm] to 100 [mmH2O / 10 mm].

15. The flavored inhalation product according to any one of claims 1 to 14, wherein An aerosol regulator for regulating the aerosol is disposed in the paper filter.

16. The flavored inhalation product according to claim 15, wherein The aerosol regulator is a destructible capsule from which a content liquid containing a fragrance component is released by applying an external force.

17. The flavored inhalation product according to claim 15, wherein The aerosol regulator is arranged linearly with the lower filter member in the longitudinal direction.

18. The flavored inhalation product according to claim 17, wherein The aerosol regulator is linearly arranged on the suction end side relative to the lower filter member in the longitudinal direction.

19. The flavored inhalation product according to claim 17, wherein The aerosol regulator is linearly arranged on the base material portion side in the longitudinal direction relative to the lower filter member.

20. The flavored inhalation product according to any one of claims 1 to 19, wherein The filter portion has a cylindrical member molded in a cylindrical shape between the base material portion and the paper filter, and an outer diameter of the cylindrical member is substantially the same as an outer diameter of the paper filter.

21. The flavor inhalation article according to claim 20, comprising a tipping paper wrapped around the outer peripheral surface of the base material portion and the filter portion, wherein The tipping paper has ventilation holes formed at positions corresponding to the cylindrical member or the paper filter, and air flows into the ventilation holes from the outside.

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