Flavor inhalation article

Abstract

The flavor inhalation article (1) comprises a substrate portion (10) comprising an aerosol source (11) and a nozzle section (50) through which an aerosol generated from the substrate portion (10) passes, and a tipping paper (40) wrapped on the outside of the substrate portion (10) and the nozzle section (50) to connect the substrate portion (10) and the nozzle section (50). The nozzle section (50) comprises a filter (31) as a paper filter and an object (33) different from the filter (31) arranged inside the filter (31). A vent hole (80) is formed in the tipping paper (40) to allow air to flow into the filter (31) from the outside.

Description

Technical Field

[0001] The present disclosure relates to a flavored inhalation article. Background Art

[0002] PTL 1 describes an aerosol delivery system comprising: a housing having a mouthpiece provided with an air outlet; and a consumable unit housed within the housing, the consumable unit being provided with a supply source of aerosol-generating medium and an airflow path wall forming an airflow path that passes through the supply source of aerosol-generating medium and terminates near the air outlet of the housing. PTL 1 discloses 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] For example, in flavored inhalation articles using paper filters, it is desirable to regulate the temperature of the aerosol while maintaining the efficiency of delivering the substance generated from the aerosol source (such as nicotine or glycerin) to provide a highly satisfying aerosol to the user.

[0008] An object of the present disclosure is to provide a flavored inhalation article that can regulate the temperature of the aerosol while maintaining the efficiency of delivering the substance produced.

[0009] Solution to the problem

[0010] To achieve this object, a first feature of the present disclosure is a flavor inhalation article comprising: a base portion including an aerosol source; a filter portion through which aerosol generated from the base portion passes; and a tipping paper wrapped around outer sides of the base portion and the filter portion to connect the base portion and the filter portion, wherein the filter portion includes a paper filter and an object other than the paper filter disposed inside the paper filter, and ventilation holes are formed in the tipping paper to allow air to flow from the outside into the interior of the filter portion.

[0011] The second feature is that the object may be a hollow member in which at least one end is open in the longitudinal direction of the filter portion.

[0012] The third feature is that the object may be a hollow member in which both ends are open in the longitudinal direction of the filter portion.

[0013] The fourth feature is that the filter portion may have a cylindrical member formed in a cylindrical shape between the base portion and the paper filter, and the ventilation hole may be at a position corresponding to the paper filter on the tipping paper.

[0014] The fifth feature is that the position of the vent hole in the longitudinal direction of the filter portion may not overlap with the position of the object in the longitudinal direction.

[0015] The sixth feature is that the position of the vent hole in the longitudinal direction of the filter portion can overlap with the position of the object in the longitudinal direction.

[0016] The seventh feature is that a communication hole can be formed on the paper filter at a position in the longitudinal direction of the filter part, which overlaps with the position of the vent hole in the longitudinal direction, thereby allowing air flowing in from the vent hole to communicate with the gaps in the paper filter.

[0017] The eighth feature is that if the paper filter satisfies a predetermined condition, the communication hole can be made deeper than when the predetermined condition is not satisfied.

[0018] A ninth feature is that the filter portion may have a cylindrical member formed in a cylindrical shape between the base portion and the paper filter, a vent hole may be formed on the tipping paper at a position corresponding to the cylindrical member, and a through hole may be formed on the cylindrical member to allow air flowing in from the vent hole to flow inside.

[0019] The tenth feature is that the vent hole can be circular with a diameter of 0.3 mm to 2.0 mm, or elliptical with a major axis of 0.5 mm to 3.0 mm and a minor axis of 0.2 mm to 1.5 mm.

[0020] The eleventh feature is that a plurality of ventilation holes may be formed in the tipping paper, the plurality of ventilation holes may be formed to be arranged along the circumferential direction of the filter portion, and the number of holes may be 8 or more and 30 or less.

[0021] The twelfth feature is that when the filter portion is sucked at 17.5 ml / sec, the air inflow ratio can be 40% by volume or more and 60% by volume or less.

[0022] The thirteenth feature is that the paper filter may be a filter filled with a sheet member.

[0023] The fourteenth feature is that the paper filter may be a filter filled with a sheet member so that a gap is formed across the longitudinal direction of the filter portion.

[0024] Advantageous Effects of the Invention

[0025] According to the first, thirteenth, and fourteenth features, the temperature of the aerosol can be adjusted while maintaining the efficiency of transporting the generated substance.

[0026] According to the second feature, the efficiency of transporting the generated substance can be maintained compared to a configuration in which the object is a solid member.

[0027] According to the third feature, the efficiency of conveying the generated substances can be improved compared with a configuration in which one end of the object is closed in the longitudinal direction of the filter portion.

[0028] According to the fourth feature, compared with a configuration in which air does not flow from the outside into the inside of the paper filter, the temperature of the aerosol can be adjusted while maintaining the efficiency of transporting the generated substances.

[0029] According to the fifth feature, the inflow of air from the outside can be promoted compared to a configuration in which the ventilation holes are provided in the region in which the object is provided in the longitudinal direction of the filter portion.

[0030] According to the sixth feature, compared with a configuration in which outside air does not flow into the region where the object is installed, aerosolization of the generated substance can be promoted.

[0031] According to the seventh feature, the air permeability of the filter portion can be improved.

[0032] According to the eighth feature, the air permeability of the filter portion can be enhanced compared to a configuration in which the state of the paper filter is not considered.

[0033] According to the ninth feature, compared with a configuration in which air does not flow from the outside into the inside of the cylindrical member, the temperature of the aerosol can be adjusted while maintaining the efficiency of transporting the generated substance.

[0034] According to the tenth and eleventh features, the air permeability of the filter portion can be enhanced.

[0035] According to the twelfth feature, the efficiency of transporting the generated substances can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] [ Figure 1 ] is a diagram showing a longitudinal section of the flavor inhalation product according to the first embodiment.

[0037] [ Figure 2 ] is a diagram schematically showing a configuration example of the inhalation device according to the first embodiment.

[0038] [ Figure 3 ] is a diagram showing an example of the configuration of the filter portion according to the first embodiment, wherein (A) is Figure 1 The cross section of section II in FIG. 1 is shown in FIG. 1 , and (B) is Figure 1 Cross section of the middle section II-II.

[0039] [ Figure 4 ] is a diagram showing another example of the configuration of the filter portion according to the first embodiment, wherein (A) is Figure 1 The cross section of section II in FIG. 1 is shown in FIG. 1 , and (B) is Figure 1 Cross section of section II-II.

[0040] [ Figure 5 ] is a diagram showing another example of a longitudinal section of the flavor inhalation product according to the first embodiment, wherein (A) shows an object having a sharp second side, and (B) shows an object narrowing from the first side to the second side.

[0041] [ Figure 6 ] is a diagram showing another example of a longitudinal section of the flavor inhalation product according to the first embodiment, wherein (A) shows a state where the object is positioned on the second side within the filter, and (B) shows a state where the object is positioned closer to the center within the filter.

[0042] [ Figure 7 ] is a diagram showing another example of a longitudinal section of the flavor inhalation product according to the first embodiment, wherein (A) shows a state in which an object having the same size as the filter in the centerline direction is positioned in the filter, and (B) shows a state in which a plurality of objects are positioned in the filter.

[0043] [ Figure 8 ] is a diagram showing a longitudinal section of a flavor inhalation product according to a second embodiment, wherein (A) shows a state where an object is positioned on a first side within a filter, and (B) shows a state where an object is positioned on a second side within a filter.

[0044] [ Figure 9 ] is a view showing another example of a longitudinal section of the flavor inhalation product according to the second embodiment, wherein (A) is a view showing a state in which the object is positioned on the first side in the filter, and (B) is a view showing a state in which the object is positioned on the second side in the filter.

[0045] [ Figure 10 ] is a diagram showing a longitudinal section of a flavor inhalation product according to a third embodiment, wherein (A) shows a state in which an object is positioned on a first side of an aerosol modifier, (B) shows a state in which an object is positioned on a second side of an aerosol modifier, and (C) shows a state in which an object is positioned on both the first and second sides of an aerosol modifier.

[0046] [ Figure 11 ] is a diagram showing a longitudinal section of a flavor inhalation product according to a fourth embodiment.

[0047] [ Figure 12] is a diagram showing a longitudinal section of a flavor inhalation product according to a fifth embodiment.

[0048] [ Figure 13 ] is a diagram showing a longitudinal section of a flavor inhalation product according to a sixth embodiment.

[0049] [ Figure 14 ] is a diagram showing another example of a longitudinal section of the flavor inhalation product according to the sixth embodiment, wherein (A) shows a state in which the object is positioned on the second side within the filter, and (B) shows a state in which the object is positioned closer to the center within the filter.

[0050] [ Figure 15 ] is a diagram showing another example of a longitudinal section of a flavor inhalation product according to the sixth embodiment, wherein (A) shows a state in which an object having the same size as the filter in the centerline direction is positioned in the filter, and (B) shows a state in which a plurality of objects are positioned in the filter.

[0051] [ Figure 16 ] is a diagram showing a longitudinal section of a flavor inhalation product according to a seventh embodiment, wherein (A) shows a state where an object is positioned on a first side within a filter, and (B) shows a state where an object is positioned on a second side within a filter.

[0052] [ Figure 17 ] is a view showing another example of a longitudinal section of the flavor inhalation product according to the seventh embodiment, wherein (A) is a view showing a state in which the object is positioned on the first side in the filter, and (B) is a view showing a state in which the object is positioned on the second side in the filter.

[0053] [ Figure 18 ] is a diagram showing a longitudinal section of a flavor inhalation product according to an eighth embodiment, wherein (A) shows a state in which an object is positioned on a first side of an aerosol modifier, (B) shows a state in which an object is positioned on a second side of an aerosol modifier, and (C) shows a state in which an object is simultaneously positioned on both the first and second sides of an aerosol modifier. DETAILED DESCRIPTION

[0054] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In each of the drawings, the same reference numerals are used to represent the same parts.

[0055] <First embodiment>

[0056] Figure 1 is a diagram 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.

[0057] The flavor inhalation product 1 according to the first embodiment includes a matrix portion 10, a mouthpiece segment 50 as an example of a filter portion, and a tipping paper 40. The mouthpiece segment 50 includes a filter portion 30 having a filter 31 as a paper filter. The mouthpiece segment 50 may also include a cooling portion 20, which is a component through which the aerosol generated from the matrix portion 10 passes. The mouthpiece segment 50 can be held in the mouth by the user during inhalation. The matrix portion 10 is formed into a cylindrical shape. Hereinafter, the direction of the center line CL of the matrix portion 10 may be referred to as the "center line direction". The flavor inhalation product 1 is wrapped with the tipping paper 40 in a state where the matrix portion 10 and the mouthpiece segment 50 are arranged in sequence along the center line direction to integrate the matrix portion and the mouthpiece segment. Hereinafter, one end side ( Figure 1 The left side in the center line) can be referred to as the first side, and the other end side in the center line direction ( Figure 1 The first side is the end side that is inserted into the inhalation device 100, and is the upstream side in the aerosol flow during inhalation. The second side is the opposite side of the first side, as the end side that the user keeps in the mouth for inhalation, and is the downstream side of the aerosol flow during inhalation. In addition, the cross section along the centerline direction is called a "longitudinal section", and the cross section cut out on the plane orthogonal to the centerline direction is defined as a "cross section".

[0058] (Usage Mode of Flavor Inhalation Product 1)

[0059] 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 related to the inhalation device 100, and a notification unit 113 for notifying the user of this information. Furthermore, the inhalation device 100 includes a memory 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 product 1, a holding portion 140 for holding the flavor inhalation product 1, an opening 142 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. In the inhalation device 100, while the flavor inhalation product 1 is held in the holding portion 140, the user performs inhalation.

[0060] The heating unit 121 heats the base 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 circumference of the flavor inhalation article 1. The heating unit 121 generates heat when it is supplied with power from the power supply unit 111. As an 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 becomes possible. Thereafter, when the sensor unit 112 detects the predetermined user input, power supply may be stopped. As another example, power may be supplied and aerosol may be generated during the period when the sensor unit 112 detects the user's inhalation.

[0061] The heat insulating portion 144 is arranged to cover at least the outer circumference of the heating unit 121. For example, the heat insulating portion 144 is configured by 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) or the like in a resin film so that the heat conduction of the gas is as close to zero as possible.

[0062] (Flavor inhalation product 1)

[0063] Flavor inhalation product 1 is a heat-not-burn type flavor inhalation product.

[0064] The cross section of the flavor inhalation article 1 is substantially circular, and its circumference can be appropriately changed according to the size of the product, but is generally 16 mm or more and 27 mm or less, preferably 21 mm or more and 23 mm or less. It should be noted that if the cross section is not circular, the above circumference is applied by adopting a circle having the same area as the cross section, and the circumference of the circle is used.

[0065] The size of the flavor inhalation product 1 in the centerline direction can be appropriately changed according to the size of the product, but is usually 40 mm or more and 100 mm or less, preferably 50 mm or more and 70 mm or less.

[0066] ((Matrix portion 10))

[0067] The substrate portion 10 comprises an aerosol source 11 and a wrapping paper 12, which generates steam when heated, and the wrapping paper covers the outer circumference of the aerosol source 11. In addition, the substrate portion 10 may comprise a tip member 13, which prevents the aerosol source 11 from falling from the end face on the first side of the substrate portion 10. By wrapping the aerosol source 11 and the tip member 13 with the wrapping paper 12, the substrate portion 10 is formed into a cylindrical shape. The aerosol source 11 may be tobacco-derived, such as a processed product formed into particles, sheets or powders from shredded tobacco or tobacco raw materials. The aerosol source 11 may also comprise non-tobacco-derived materials made from plants other than tobacco (e.g., mint or herbaceous plants). As an example, the aerosol source 11 may comprise spices. There is no particular restriction on the type of spices, but from the perspective of imparting good flavor, menthol is particularly preferred. These spices may be used alone, or two or more may be used in combination. If the inhalation device 100 is a medical inhaler, the aerosol source 11 may comprise medicine for the patient to inhale. It should be noted that the aerosol source 11 is not limited to solids and may be liquids such as polyols such as glycerin and propylene glycol, and water. When the flavor inhalation product 1 is held in the holding portion 140, at least a portion of the base portion 10 is accommodated in the interior space 141 of the holding portion 140.

[0068] The substrate portion 10 formed by wrapping the aerosol source 11 with the wrapping paper 12 preferably has a cylindrical shape satisfying an aspect ratio of 1 or more as defined in Formula 1.

[0069] Mathematical formula 1

[0070] Aspect ratio = h / w

[0071] In Formula 1, w is the width of the cross section of the matrix portion 10, and h is the size of the matrix portion 10 in the centerline direction, preferably h ≥ w. The cross-sectional shape is not limited and can be polygonal, rounded polygonal, circular, elliptical, etc. In the case of a circular cross section, the width w is the diameter; in the case of an elliptical cross section, the width is the major axis; and in the case of a polygonal or rounded polygonal cross section, w is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. The cross-sectional width of the aerosol source 11 constituting the matrix portion 10 is preferably 4 mm or more and 9 mm or less.

[0072] The size h of the matrix part 10 in the center line direction can be appropriately changed according to the size of the product, but is usually more than 8 mm, preferably more than 10 mm. In addition, the size h of the matrix part 10 in the center line direction is usually below 70 mm, preferably below 30 mm.

[0073] Furthermore, the ratio of the size h of the substrate portion 10 in the centerline direction to the size of the flavor inhalation article 1 is not particularly limited, but from the perspective of balancing the delivery amount and aerosol temperature, it 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 size h of the substrate portion 10 to the size 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.

[0074] The content of the aerosol source 11 in the base portion 10 is not particularly limited, but examples include 200 mg or more and 800 mg or less, with 250 mg or more and 600 mg or less being preferred. This range is particularly suitable for a base portion 10 having a circumference of 22 mm and a size of 20 mm in the centerline direction.

[0075] Here, the aerosol source 11 comprising chopped tobacco will be described. The material of the chopped tobacco included in the aerosol source 11 is not particularly limited, and known materials such as sheets and midribs can be used. Alternatively, dried tobacco leaves are pulverized to an average particle size of 20 μm or more and 200 μm or less to produce tobacco powder, which is then homogenized and sheet-processed (hereinafter referred to as a homogenized sheet) and chopped. Furthermore, a so-called strand type can be used, in which a homogenized sheet having a size approximately the same as that of the substrate portion 10 in the centerline direction is chopped horizontally in the centerline direction of the substrate portion 10 and filled as the aerosol source 11.

[0076] The width of the shredded tobacco is preferably 0.5 mm or more and 2.0 mm or less so as to be filled in the aerosol source 11 .

[0077] About the tobacco leaf for producing chopped tobacco and homogenized sheet, various types of tobacco can be used.Examples include yellow varieties, Burley varieties, oriental varieties, local varieties, other tobacco (Nicotiana tabacum) varieties, yellow flower tobacco varieties and mixtures thereof.For mixture, each variety can be appropriately blended and used to realize required local flavor.The details about tobacco varieties are disclosed in "Tobacco Dictionary, Tobacco Academic Research Center, March 31, 2009".There are several conventional methods for producing homogenized sheet, i.e., for the method that pulverized tobacco leaf is processed into homogenized sheet.According to the first method, papermaking process is used to produce paper sheet.According to the second method, suitable solvent (such as water) is mixed with pulverized tobacco leaf and the mixture is homogenized, and afterwards the homogenized material is thinly poured on metal plate or metal strip and dried to produce cast sheet.According to the third method, suitable solvent (such as water) is mixed with pulverized tobacco leaf and the mixture is homogenized, and the homogenized material is extruded into the form of sheet and shaped to produce calendered sheet. Details on the types of homogeneous sheets are disclosed in "Dictionary of Tobacco, Tobacco Academic Studies Center, March 31, 2009".

[0078] The moisture content of the aerosol source 11 may be 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 amount of the aerosol source 11. Such a moisture content suppresses the occurrence of winding stains and improves winding suitability during the production process of the base portion 10.

[0079] The aerosol source 11 is not particularly limited and may include extracts and / or components thereof from various natural substances depending on the application. Examples of the extracts and / or components thereof include glycerol, propylene glycol, triacetin, 1,3-butylene glycol, and mixtures thereof.

[0080] The content of the extract and / or its components in the aerosol source 11 is not particularly limited, but from the viewpoint of sufficient aerosol generation and imparting a good flavor, it is generally 5% by mass or more, preferably 10% by mass or more, relative to the total amount of the aerosol source 11. Furthermore, the content of the extract and / or its components in the aerosol source 11 is generally 50% by mass or less, preferably 15% by mass or more, and 25% by mass or less.

[0081] The filling density of the aerosol source 11 is not particularly limited, but from the perspective of ensuring the performance of the flavor inhalation product 1 and imparting good flavor, it is generally 250 mg / cm3 or more, preferably 300 mg / cm3 or more. The filling density of the aerosol source 11 is generally 400 mg / cm3 or less, preferably 350 mg / cm3 or less. 3 the following.

[0082] The aerosol source 11 may also be composed of tobacco sheets. The number of tobacco sheets may be one or more.

[0083] In the case where the aerosol source 11 is composed of a single tobacco sheet, an example mode is a so-called pleated sheet, in which a tobacco sheet having one side approximately equal to the size of the object being filled in the direction of the centerline is filled by being folded back horizontally multiple times along the centerline of the object being filled. Another example mode is a tobacco sheet having one side approximately equal to the size of the object being filled in the direction of the centerline is filled by being wound in a direction orthogonal to the centerline of the object being filled.

[0084] In the case where the aerosol source 11 is composed of two or more tobacco sheets, an example mode is to fill the aerosol source 11 with multiple tobacco sheets (one side of each tobacco sheet is approximately the same size as the centerline direction of the object to be filled) in a state of being wound in a direction perpendicular to the centerline direction of the object to be filled so that they are concentrically arranged. "Concentrically arranged" means that the centers of all tobacco sheets are located at approximately the same position.

[0085] Two or more tobacco sheets can all have the same composition or physical properties, or some or all of the tobacco sheets can have different compositions or physical properties. Additionally, the thickness of each tobacco sheet can be the same or different.

[0086] There is no limitation on the thickness of each tobacco sheet, but from the viewpoint of balancing heat transfer efficiency and strength, a thickness of 150 μm or more and 1000 μm or less is preferable, with 200 μm or more and 600 μm or less being more preferable.

[0087] The aerosol source 11 may be manufactured by preparing a plurality of tobacco sheets having different widths, forming a laminate that narrows from a first side to a second side, and then winding it through a winding tube.

[0088] According to this manufacturing method, a plurality of tobacco sheets extend in the centerline direction and are concentrically arranged around the centerline CL.

[0089] In this manufacturing method, it is preferred to prepare the laminate so that non-contact portions are formed between adjacent tobacco sheets after winding. The presence of non-contact portions (gaps) between multiple tobacco sheets where the tobacco sheets do not contact one another ensures a flavor flow path and improves the efficiency of flavor component delivery. Furthermore, since heat from heating unit 121 can be transferred to the outer tobacco sheets through the contact portions of the multiple tobacco sheets, high heat transfer efficiency can be ensured.

[0090] In order to provide non-contact portions between a plurality of tobacco sheets, for example, a laminate may be prepared using methods such as using embossed tobacco sheets, laminating without bonding the entire surfaces of adjacent tobacco sheets, bonding a portion of adjacent tobacco sheets, or lightly bonding the entire surfaces or a portion of adjacent tobacco sheets so that they are peeled off after winding.

[0091] When preparing the substrate portion 10 including the wrapping paper 12, the wrapping paper 12 may be placed on the end surface of the first side of the laminate.

[0092] The tobacco sheet can be appropriately produced by a known method such as papermaking, pulping, rolling, etc. The aforementioned homogenized sheet can also be used.

[0093] 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).

[0094] In the case of a slurry filling process, tobacco sheets can be produced by a method comprising the following steps: 1) mixing crushed tobacco leaves with water, pulp, and a binder; 2) thinly spreading (casting) the mixture and drying it. In this case, a step can be added in which the slurry obtained by mixing crushed tobacco leaves with water, pulp, and a binder is exposed to ultraviolet or X-ray radiation to remove certain components (such as nitrosamines).

[0095] In addition to the above, non-woven tobacco sheets 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 non-woven fabrics; 3) Molding the laminate into a fixed shape using hot melt bonding to obtain a tobacco sheet in the form of a non-woven fabric.

[0096] The type of tobacco leaves used as the raw material in each of the above methods may be the same as described for the aerosol source 11 (comprising shredded tobacco).

[0097] There are no particular restrictions on the composition of the tobacco sheet, but for example, the content of tobacco raw material (tobacco leaf) is preferably 50% by mass or more and 95% by mass or less relative to the total mass of the tobacco sheet. The tobacco sheet may also include a binder, and examples of such binders include guar gum, xanthan gum, carboxymethyl cellulose, sodium salt of carboxymethyl cellulose, etc. The amount of the binder is preferably 1% by mass or more and 10% by mass or less relative to the total mass of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of other additives that can be cited include fillers, such as pulp.

[0098] The material of the wrapping paper 12 used in the base portion 10 is not particularly limited, and may be a general type, for example, a wrapping paper having pulp as a main component. As for the pulp, in addition to being made of wood pulp such as softwood pulp and hardwood pulp, the pulp may also be made by mixing non-wood pulp (such as flax pulp, sisal pulp, Spanish grass pulp, etc.) commonly used for wrapping paper 12 in tobacco products.

[0099] Types of pulp include chemical pulp obtained by kraft pulping, acid, neutral, alkaline sulfite pulping and soda pulping, groundwood pulp, chemical groundwood pulp, thermomechanical pulp, etc.

[0100] The wrapping paper 12 is manufactured by conditioning and homogenizing pulp in a papermaking process using a Fourdrinier, cylinder, or gap papermaking machine. 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 printability of the wrapping paper 12. Furthermore, papermaking additives such as sulfate tape, various anionic, cationic, nonionic, or amphoteric retention aids, drainage aids, and paper strength enhancers, as well as dyes, pH adjusters, defoamers, pitch control agents, and scale inhibitors may be added.

[0101] The basis weight of the base paper used for the wrapping paper 12 is usually 20 gsm or more, preferably 25 gsm or more. On the other hand, the basis weight is usually 65 gsm or less, preferably 50 gsm or less, and even more preferably 45 gsm or less.

[0102] The thickness of the wrapping paper 12 is not particularly limited, but from the perspectives of rigidity, air permeability, and ease of adjustment during papermaking, it is generally 10 μm or more, preferably 20 μm or more, and more preferably 30 μm or more. Furthermore, 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.

[0103] The shape of the wrapping paper 12 may be square or rectangular.

[0104] When used as wrapping paper 12 to wrap the tip member 13 of the aerosol source 11, the length of one side can be approximately 8 mm to 70 mm, and the length of the other side can be approximately 15 mm to 28 mm, preferably 22 mm to 24 mm, and more preferably approximately 23 mm. When wrapping the aerosol source 11 cylindrically, for example, with the wrapping paper 12 in the circumferential direction, the ends of the wrapping paper 12 can overlap by approximately 2 mm and be glued together to form a cylindrical paper tube shape, with the aerosol source 11 filling the interior. The size of the rectangular wrapping paper 12 can be determined based on the size of the substrate portion 10.

[0105] In addition to the pulp, the wrapping paper 12 may include a filler. The filler content may be 10% by mass or more and 60% by mass or less relative to the total mass of the wrapping paper 12, with 15% by mass or more and 45% by mass or less being preferred.

[0106] In the preferred basis weight range of the wrapping paper 12 (25 gsm or more and 45 gsm or less), it is preferred that the filler content is 15% by mass or more and 45% by mass or less.

[0107] Furthermore, when the basis weight is 25 gsm or more and 35 gsm or less, it is preferred that the filler content is 15% by mass or more and 45% by mass or less, and when the basis weight is 35 gsm or more and 45 gsm or less, it is preferred that the filler content is 25% by mass or more and 45% by mass or less.

[0108] Fillers such as calcium carbonate, titanium dioxide, and kaolin may be used, but calcium carbonate is preferred from the standpoint of enhancing flavor and whiteness.

[0109] In addition to the base paper and filler, various additives (such as water resistance enhancers) are added to the wrapping paper 12 to improve water resistance. Water resistance enhancers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of 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 more.

[0110] Additives such as paper strength enhancers may be added, including polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, and polyvinyl alcohol. In particular, it is known that using a very small amount of oxidized starch can improve air permeability (see JP 2017-218699 A).

[0111] The wrapping paper 12 may have a coating agent applied to at least one of its two surfaces (front and back). 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 polysaccharides such as alginic acid and its salts (e.g., sodium salt), as well as pectin, cellulose derivatives (e.g., ethyl cellulose, methyl cellulose, carboxymethyl cellulose, and nitrocellulose), and starch and its derivatives (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch, and ester derivatives such as starch acetate, starch phosphate, and starch octenylsuccinate).

[0112] ((Tipping Paper 40))

[0113] The tipping paper 40 is wrapped around the outer peripheral surfaces of the base portion 10 and the nozzle segment 50 .

[0114] The shape of the butt wrapping paper 40 is not particularly limited, and may be, for example, square or rectangular.

[0115] The basis weight of the butt binder paper 40 is not particularly limited, but is generally 32 gsm or more and 60 gsm or less, preferably 33 gsm or more and 55 gsm or less, and more preferably 34 gsm or more and 53 gsm or less.

[0116] The air permeability of the butt wrapping paper 40 is not particularly limited, but is generally 0 Coresta units or more and 30,000 Coresta units or less, preferably greater than 0 Coresta units and 10,000 Coresta units or less. Here, "air permeability" is a value measured in accordance with ISO 2965:2009, expressed as the flow rate (cm3) of gas passing through an area of ​​1 cm2 per minute when the pressure difference between the two sides of the paper is 1 kPa. One Coresta unit (1 Coresta unit, 1 C.U.) is cm3 / (min·cm2) at 1 kPa.

[0117] The material of the tipping paper 40 is not particularly limited, and can be a general type, for example, a tipping paper having pulp as a main component. Regarding the pulp, in addition to being made of wood pulp such as softwood pulp and hardwood pulp, the pulp can also be made by mixing non-wood pulp commonly used for wrapping paper in tobacco products (such as flax pulp, sisal pulp, Spanish grass pulp, etc.). These pulps can be used alone or in combination of multiple types at any ratio.

[0118] Types of pulp include chemical pulp obtained by kraft pulping, acid, neutral, alkaline sulfite pulping and soda pulping, groundwood pulp, chemical groundwood pulp, thermomechanical pulp, etc. The tipping paper 40 may be manufactured by the above-mentioned manufacturing method, or a commercial product may be used.

[0119] In addition to the above materials, the tipping paper 40 may further include fillers such as metal carbonates (e.g., calcium carbonate and magnesium carbonate), metal oxides (e.g., titanium dioxide and aluminum oxide), metal sulfates (e.g., barium sulfate and calcium sulfate), metal sulfides (e.g., zinc sulfide), quartz, kaolin, talc, diatomaceous earth, gypsum, etc., among which calcium carbonate is preferred from the perspective of improving whiteness, opacity, and heating rate. These fillers may be used alone or in combination of two or more.

[0120] In addition to the aforementioned materials and fillers, various additives, such as water resistance enhancers, may be added to the tipping paper 40 to improve water resistance. Water resistance enhancers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea-formaldehyde resins, melamine-formaldehyde resins, and polyamide epichlorohydrin (PAE). Examples of 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.

[0121] The tipping paper 40 may have a coating agent added to at least one of its two surfaces (front and back). The coating agent is not particularly limited, but a coating agent that can form a film on the surface and reduce liquid permeability is preferred.

[0122] A portion of the outer surface of the tipping paper 40 may be coated with a lip release material. The lip release material is designed to facilitate easy separation when the user holds the filter portion 30 of the flavor inhalation article 1 in their mouth, without substantial adhesion between the lips and the tipping paper 40. The lip release material may include, for example, ethylcellulose, methylcellulose, or nitrocellulose. For example, the outer surface of the tipping paper 40 may be coated with the lip release material by applying an ethylcellulose-based or methylcellulose-based ink.

[0123] The vent holes 80 (also referred to as "vent filter (Vf)" in the art) are formed on the tipping paper 40. The vent holes 80 are openings that allow air to flow from the outside of the flavor inhalation product 1 into the inside of the filter portion 30.

[0124] The shape of the vent hole 80 can be appropriately varied, with examples including polygonal, rounded polygonal, circular, and elliptical shapes. From the perspective of ease of manufacture and inflow efficiency, it is preferred that the vent hole 80 be circular with a diameter of 0.3 mm or more and 2.0 mm or less, or elliptical with a major axis of 0.5 mm or more and 3.0 mm or less and a minor axis of 0.2 mm or more and 1.5 mm or less.

[0125] The vent hole 80 is positioned in the centerline direction at a location where air can flow in from outside the flavor inhalation article 1. In other words, it protrudes from the opening 142 when the flavor inhalation article 1 is held in the holding portion 140 of the inhalation device 100. Furthermore, it is preferred that the vent hole 80 be positioned in the centerline direction at a location within the mouthpiece segment 50 where it is less likely to be held in the user's mouth during inhalation. For example, it is preferred that the vent hole 80 be positioned in the centerline direction at least 8 mm from the end surface on the second side of the mouthpiece segment 50.

[0126] Furthermore, from the perspective of improving the efficiency of conveying the substance (product) produced by heating and ensuring the cooling function, the position where the vent hole 80 is formed is selected within the region corresponding to the aforementioned position in the centerline direction. Specifically, the position where the vent hole 80 is formed is selected based on the positional relationship between the object 33 (described later) within the filter 31 and the vent hole 80, and the distance from the boundary between the nozzle section 50 and the base portion 10 in the centerline direction.

[0127] Preferably, a plurality of ventilation holes 80 are formed in the tipping paper 40. More preferably, the number of ventilation holes 80 is 8 or more and 30 or less. Preferably, the plurality of ventilation holes 80 are formed concentrically in the circumferential direction of the nozzle segment 50 in the region where the nozzle segment 50 is located. In other words, preferably, the plurality of ventilation holes 80 are formed so as to be arranged along the circumferential direction of the nozzle segment 50, and the number of holes is 8 or more and 30 or less.

[0128] When the plurality of vent holes 80 concentrically present on the tipping paper 40 is regarded as one group of vent holes, there may be one group of vent holes, or there may be two or more groups of vent holes.

[0129] In the case where the flavor inhalation product 1 is in a form in which the base portion 10 and the mouthpiece segment 50 are wrapped with the tipping paper 40, it is preferred that the mouthpiece segment 50 be provided with an inflow hole at a position overlapping with the ventilation hole 80 provided in the tipping paper 40. When manufacturing such a flavor inhalation product 1, the tipping paper 40 having the ventilation hole 80 overlapping with the inflow hole can be prepared and wrapped. However, from the perspective of ease of manufacturing, it is preferred to first manufacture the flavor inhalation product 1 without the inflow hole and then create a hole that penetrates both the mouthpiece segment 50 and the tipping paper 40.

[0130] The existence of vent 80 allows air to flow into the inside of mouthpiece section 50 from the outside during suction, so that the temperature of the steam and the air flowing in from matrix part 10 can be reduced. In addition, vent 80 is provided on mouthpiece section 50 not only to enhance cooling capacity, but also to suppress the retention of the material produced by heating in mouthpiece section 50. In other words, the existence of vent 80 allows to regulate the temperature of aerosol, while maintaining the efficiency of the material produced by conveying. In addition, when matrix part 10 is heated, the steam produced as condensation nuclei using aerosol can contact with the air from the outside, thereby causing temperature to drop and liquefy, promotes the generation of aerosol thus.

[0131] Moreover, the presence of the vent 80 allows the concentration of the flavor components and aerosol to be adjusted. By adjusting the concentration of the flavor components and aerosol inhaled through the vent 80, the variety of flavor inhalation products can be increased.

[0132] In addition, the presence of the plurality of vent holes 80 allows air to efficiently flow from the outside into the interior of the mouthpiece segment 50 during inhalation, thereby enhancing the aforementioned effects.

[0133] Preferably, the vent holes 80 are arranged so that when the mouthpiece segment 50 is inhaled at 17.5 ml / sec using an automatic smoking machine, the air inflow ratio from the vent holes 80 is 10% or more by volume and 90% or less by volume. This "air inflow ratio" is the volume ratio of air flowing in from the vent holes 80 when the ratio of air inhaled from the end portion of the second side (the mouthpiece end) in the centerline direction is set to 100% by volume. An air inflow ratio of 40% or more by volume and 60% or less by volume is preferred for expressing a suitable flavor at a standard dilution ratio. These air inflow ratios can be achieved by selecting, for example, the location where the vent holes 80 are formed, the number of vent holes 80 in each group, the shape and size of the vent holes 80, and a combination of these selections.

[0134] The air inflow ratio can be measured according to ISO 9512 using a package mass measuring device (SODIMAX D74 / SODIM manufactured by SAS).

[0135] ((Nozzle section 50))

[0136] The nozzle segment 50 is formed into a cylindrical shape in which the size in the center line direction is larger than the width of the cross section. Therefore, the nozzle segment 50 is arranged so that the longitudinal direction is in the center line direction.

[0137] In this embodiment, as an example of a filter portion, the nozzle segment 50 includes a cooling portion 20 and a filter portion 30. The nozzle segment 50 is connected (associated) to the base portion 10 by wrapping the base portion 10 together with the tipping paper 40.

[0138] The cross section of the nozzle section 50 is substantially circular, and its circumference can be appropriately adjusted according to the size of the product, but it is preferably substantially the same as the circumference of the filter 31 included in the filter portion 30, which will be described later. It should be noted that if the cross section is not circular, the above circumference is applied by adopting a circle having the same area as the cross section, and the circumference of the circle is used.

[0139] The size of the nozzle segment 50 in the centerline direction can be appropriately adjusted according to the size of the product, but is generally 5 mm or more and preferably 60 mm or less, more preferably 25 mm or more and 40 mm or less.

[0140] As will be described in detail later, the mouthpiece segment 50 is formed with an inflow hole for allowing air to flow from the outside of the flavor inhalation product 1 into the inside of the mouthpiece segment 50 during inhalation. This inflow hole allows air to flow into the inside of the mouthpiece segment 50 through the vent hole 80 formed in the tipping paper 40 and send the air into the filter portion 30. The shape of the hole can be polygonal, rounded polygonal, circular, elliptical, etc., but is preferably the same shape as the vent hole 80.

[0141] The inflow holes are preferably arranged so that when the mouthpiece segment 50 is inhaled at 17.5 ml / sec using an automatic smoking machine, the air inflow ratio from the inflow holes is 10% by volume or more and 90% by volume or less. An air inflow ratio of 40% by volume or more and 60% by volume or less is preferred for expressing a suitable flavor at a standard dilution ratio. These air inflow ratios can be achieved by selecting, for example, the position of the inflow holes, the number of inflow holes, the shape, and the size of the inflow holes, as well as a combination of these selections.

[0142] ((Cooling section 20))

[0143] The cooling portion 20 is located adjacent to the base portion 10 and the filter portion 30 and is formed into a portion having a hollow (cavity) cross section such as a cylinder by wrapping the sheet 21. The cooling portion 20 cools vapor generated by heating the base portion 10 to generate aerosol.

[0144] The cross section of the cooling portion 20 is substantially circular, and its circumference can be appropriately adjusted according to the size of the product, but is preferably substantially the same as the circumference of the filter 31, which will be described later. It should be noted that if the cross section is not circular, the above circumference is applied by adopting a circle having the same area as the cross section, and the circumference of the circle is used.

[0145] The centerline size of the cooling portion 20 can be adjusted appropriately depending on the size of the product, but is typically 5 mm or larger, preferably 10 mm or larger, and more preferably 15 mm or larger. Furthermore, the centerline size of the cooling portion 20 is typically 35 mm or smaller, preferably 30 mm or smaller, and more preferably 25 mm or smaller. Furthermore, it is preferred that the centerline size of the cooling portion 20 meet any combination of the aforementioned lower and upper limits. By setting the centerline size of the cooling portion 20 to at least the aforementioned lower limit, a sufficient cooling effect can be ensured to achieve good flavor, while setting this size below the aforementioned upper limit can suppress losses caused by vapor and aerosol adhering to the sheet 21.

[0146] For example, the cooling portion 20 is a paper tube formed by wrapping a sheet 21 made of paper.

[0147] Specifically, the cooling section 20 is a paper tube, known as a spiral paper tube, formed by laminating and spirally winding multiple sheets 21 of at least paper. The spiral paper tube manufacturing method easily allows for the formation of a paper tube with a circular cross-section. Using a spiral paper tube for the cooling section 20 reduces its area while increasing its strength. Furthermore, by laminating paper with sheet materials containing fragrance components, flavor components, tobacco powder, and the like, the aerosol can be imbued with novel aromatic flavors.

[0148] Alternatively, the cooling portion 20 may be a paper tube, referred to as a straight paper tube, which is formed by wrapping paper in a cylindrical shape in multiple layers. In the manufacturing method of the straight paper tube, the amount of glue used to attach the paper can be reduced compared to the manufacturing method of the spiral paper tube.

[0149] In addition, 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 can be maintained even when the basis weight of each sheet 21 is small.

[0150] The thickness of the sheet 21 is not limited and may be, for example, 50 μm or more and 500 μm or less, and may also be 100 μm or more and 250 μm or less. The material of the sheet 21 is not particularly limited and may be, for example, a material having pulp as a main component, a material having polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, or aluminum foil as a main component, or any combination thereof.

[0151] The cooling portion 20 is formed by wrapping the sheet 21, but is an example of a cylindrical member formed in 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 formed, for example, from a synthetic resin pipe that already has a hollow cross section.

[0152] ((Filter portion 30))

[0153] Figure 3 is a diagram showing an example of the configuration of the filter portion 30 according to the first embodiment, wherein (A) is Figure 1 The cross section of section II in FIG. 1 is shown in FIG. 1 , and (B) is Figure 1 Cross section of the middle section II-II. Figure 4 is a diagram showing another example of the configuration of the filter portion 30 according to the first embodiment, wherein (A) is Figure 1 The cross section of section II in FIG. 1 is shown in FIG. 1 , and (B) is Figure 1 Cross section of section II-II.

[0154] The filter portion 30 is formed in a cylindrical shape in which the size in the center line direction is larger than the width of the cross section. Therefore, the filter portion 30 is arranged so that the longitudinal direction is in the center line direction.

[0155] The filter portion 30 includes a filter 31 through which aerosols pass, an object 33 different from the filter 31, and a wrapping paper 35 disposed between the filter 31 and the tipping paper 40 and wrapped around the outer peripheral surface of the filter 31. The filter 31 is formed with a communication hole 70 as an example of an inflow hole. The filter portion 30 is connected (associated) to the cooling portion 20 by being wrapped together with the tipping paper 40. It should be noted that the wrapping paper 35 may not be included.

[0156] The form of the wrapping paper 35 is not particularly limited, and may include a seam containing one or more rows of adhesive. The adhesive may include a hot melt adhesive, and the hot melt adhesive may include polyvinyl alcohol. In addition, if the filter portion 30 is composed of two or more components, it is preferable to wrap each of these components with a wrapping paper, and then further wrap them together with another wrapping paper.

[0157] There is no particular limitation on the material of the wrapping paper 35 , and a known material may be used, and it may include a filler such as calcium carbonate.

[0158] The thickness of the wrapping paper 35 is not particularly limited, but is generally 20 μm to 140 μm, preferably 30 μm to 130 μm, and more preferably 30 μm to 120 μm.

[0159] The basis weight of the wrapping paper 35 is not particularly limited, but is generally 20 gsm or more and 100 gsm or less, preferably 22 gsm or more and 95 gsm or less, and more preferably 23 gsm or more and 90 gsm or less.

[0160] The air permeability of the wrapping paper 35 is not particularly limited, but is generally 0 Coresta unit or more and 30,000 Coresta units or less, preferably more than 0 Coresta unit and 10,000 Coresta units or less.

[0161] In addition, the wrapping paper 35 may be coated or may be uncoated, but from the viewpoint of imparting functions other than strength and structural rigidity, it is preferably coated with a desired material.

[0162] The cross section of the filter 31 in the filter portion 30 is substantially circular, and its circumference can be appropriately adjusted according to the size of the product, but can be 22 mm or more and 25 mm or less. It should be noted that if the cross section is not circular, the above circumference is applied by adopting a circle having the same area as the cross section, and the circumference of the circle is used.

[0163] The size of the filter portion 30 in the centerline direction can be appropriately adjusted according to the size of the product, but it is generally 5.0 mm or more and 30.0 mm or less, preferably 12.5 mm or more and 27.5 mm or less, and more preferably 15.0 mm or more and 25.0 mm or less.

[0164] The air resistance per 10 mm of the filter portion 30 in the centerline direction is not particularly limited, but is generally 0 mmH2O to 100 mmH2O, preferably 10 mmH2O to 80 mmH2O, and more preferably 10 mmH2O to 50 mmH2O.

[0165] Air resistance is measured according to ISO standard methods (ISO 6565), for example, using a filter air resistance measuring device manufactured by Cerulean. The air resistance of the filter portion 30 refers to the pressure difference between the first side and the second side when air flows from the first side to the second side at a predetermined air flow rate (17.5 cc / min) without passing through the side surfaces of the filter portion 30. The unit is typically expressed in mmH2O.

[0166] The filter 31 is a so-called paper filter, and during inhalation, the aerosol passes through the filter 31 in the centerline direction. The filter 31 is a paper filter in which gaps 31b are formed as passages through which the aerosol can pass. For example, the filter 31 is formed by filling and molding a sheet member 31a. Specifically, the filter 31 is formed by filling and molding the sheet member 31a to ensure a passage path for the aerosol to extend in the centerline direction.

[0167] There is no particular limitation on the packing density of the sheet member 31a, but it is generally, for example, 80 mg / cm3 or more and 720 mg / cm3 or less from the viewpoint of balancing air resistance and filtration rate. Figure 3 As shown in (A), the packing density of the sheet member 31a in the region where the object 33 is not provided is preferably 80 mg / cm 3 Above and 380mg / cm 3 Below, more preferably 150 mg / cm 3 Above and 240mg / cm 3 In addition, Figure 3 As shown in (B), the packing density of the sheet member 31a in the area where the object 33 is provided is preferably 105 mg / cm 3 Above and 720mg / cm 3 Below, more preferably 170 mg / cm 3 Above and 480mg / cm 3 the following.

[0168] It should be noted that the packing density of the sheet member 31 a is an example of the density of the filter 31 .

[0169] The density of the sheet member 31a itself is not particularly limited, but from the viewpoint of balancing the filtering capacity and air resistance of the filter 31, the lower limit is preferably 0.05 g / cm3 or more, more preferably 0.5 g / cm3 or more, and the upper limit is preferably 1.50 g / cm3 or more. 3 The density of the sheet member 31a itself preferably satisfies any combination of the lower and upper limits described above. The higher the density of the sheet member 31a, the fewer gaps exist between the fibers of the sheet member 31a, thereby reducing the amount of aerosol that enters the gaps between the fibers of the sheet member 31a.

[0170] There is no particular limitation on the thickness of the sheet member 31a, but from the perspective of balancing the filtering capacity and air resistance of the filter 31, the lower limit is preferably 0.03 mm or more, more preferably 0.05 mm or more, and the upper limit is preferably 1.20 mm or less, more preferably 0.5 mm or less. Furthermore, it is preferred that the thickness of the sheet member 31a satisfy any combination of the above lower and upper limits.

[0171] The material of the sheet member 31a is not particularly limited, as long as it can fulfill the general function of a filter. However, paper or a nonwoven fabric primarily composed of pulp is preferred, with paper being more preferred. Alternatively, materials such as polymer sheets or metal sheets can be used for the sheet member 31a. It should be noted that while general filter functions include, for example, regulating the amount of air mixed during aerosol inhalation, reducing flavor, and reducing nicotine and tar, it is not necessary to possess all of these functions. Furthermore, in heat-not-burn flavor inhalation products 1, which tend to have fewer generating components and a lower aerosol source 11 filling rate compared to cigarette products, it is also important to prevent the components contained within the flavor inhalation product 1 from separating while suppressing the filtering function.

[0172] In this embodiment, the filter 31 is formed of a sheet member 31a folded or provided with pleats or dense pleats, and is filled to ensure a passage path for aerosol extending in the centerline direction. Specifically, as Figure 3 As shown in FIG. 1A , the filter 31 is a paper filter in which a sheet member 31 a is filled so as to form gaps 31 b in the longitudinal direction of the filter portion 30. The sheet member 31 a is a densely pleated paper filter. Here, "densely pleated" means that the sheet member is filled in a state in which it is folded back horizontally multiple times in the direction of the center line of the filter 31.

[0173] The sheet member 31a may be a single sheet or two or more sheets. In addition, as long as a passage path for the aerosol extending in the centerline direction is ensured, folding or pleating is not required. Specifically, as Figure 4 As shown in (A), the filter 31 may be a paper filter filled with a strip-shaped sheet member 31a.

[0174] By curling the entire sheet member 31a, voids can be efficiently formed in the sheet member 31a. Curling is the process of providing wrinkles in a sheet. For example, by passing the sheet member to be processed between a pair of rollers having multiple protrusions on their surfaces, wrinkles extending orthogonally to the sheet conveyance direction can be formed on the front and rear surfaces of the sheet member.

[0175] It should be noted that filter 31 is not limited to the configuration of this embodiment and may be any paper filter formed from the same material as sheet member 31a. Specifically, filter 31 may be a paper filter formed from the aforementioned material and need not be formed by filling sheet member 31a. For example, filter 31 may be a paper filter formed by filling and molding a string-like or spherical member made from the aforementioned material.

[0176] Object 33 is a member disposed within filter 31 and is different from filter 31. Specifically, object 33 is a member having a density within object 33 that is different from the density of the region of filter 31 where object 33 is disposed, or a member made of a material different from that of filter 31. By disposing object 33 within filter 31, the flow path of aerosol within filter 31 is controlled.

[0177] The shape of the outer periphery of the object 33 in cross section may be changed appropriately according to the shape of the product, but examples include a circular shape, an elliptical shape, a polygonal shape, and a rounded polygonal shape.

[0178] The ratio of the cross-sectional area of ​​the object 33 to the area of ​​the filter portion 30 is not particularly limited, but may be 15% or more and 50% or less, preferably 20% or more and 40% or less. If multiple objects 33 are disposed within the filter 31, it is preferred that the ratio of the total area of ​​the multiple objects 33 in one cross-sectional area to the area of ​​the filter portion 30 be within the above range. Furthermore, if the outer periphery of the object 33 is substantially circular in cross-section, the circumference can be adjusted appropriately depending on the size of the product, but is typically 6 mm or more and 15 mm or less, more preferably 9 mm or more and 11 mm or less. Furthermore, the ratio of the circumference of the object 33 to the circumference of the filter 31 is typically 0.20 or more and less than 0.70, more preferably 0.35 or more and 0.50 or less. Note that if the cross-section is not circular, the above circumference is applied by assuming a circle with the same area as the cross-section, and using that circle's circumference.

[0179] The size of the object 33 in the centerline direction can be appropriately varied depending on the size of the product, but is preferably no larger than the size of the filter 31 in the centerline direction. For example, the size of the object 33 in the centerline direction is preferably smaller than the size of the filter 31 in the centerline direction so that the end surface of the filter 31 appears similar to the end surface of a flavor inhalation product without the object 33. Furthermore, to ensure that the object 33 is not visible from at least one end of the filter 31 in the centerline direction, the object 33 is preferably at least 2 mm smaller than the filter 31 in the centerline direction.

[0180] exist Figure 1 In the example shown, the shape of the object 33 is cylindrical or columnar in appearance. The shape of the object 33 may also be spherical in appearance. Figure 1 In the example shown, the size of the object 33 in the centerline direction is larger than the size in the direction orthogonal to the centerline direction, but is not limited thereto and may be the same as the size in the direction orthogonal to the centerline direction.

[0181] The object 33 may be one or more objects. Figure 3As shown in (B), an object 33 may be provided in the filter 31, or as Figure 4 As shown in (B), a plurality of objects 33 may be provided in the filter 31 .

[0182] In addition, the object 33 disposed in the filter 31 can modify the aerosol. "Modification" means changing or removing some components contained in the generated aerosol or adding new components that affect the flavor of the aerosol inhaled by the user.

[0183] If object 33 is a hollow member with a hollow cross-section, it is preferably a hollow member with at least one end open in the centerline direction, and more preferably a hollow member with both ends open in the centerline direction. By making object 33 a hollow member, aerosols can more easily pass through filter portion 30 than when it is a solid member. Furthermore, by making object 33 a hollow member with at least one end open in the centerline direction, the filtering function of aerosols passing through filter portion 30 can be suppressed, thereby maintaining the efficiency of transporting generated substances even if filter 31 is a paper filter. Furthermore, by making object 33 a hollow member with both ends open in the centerline direction, the filtration rate of aerosols passing through object 33 can be reduced to 0% compared to the filtration rate of filter 31. Furthermore, by making object 33 a hollow member with both ends open in the centerline direction, the filtering function of aerosols passing through can be suppressed compared to a member with one end closed, thereby improving the efficiency of transporting generated substances.

[0184] For example, the hollow member is a tube formed by wrapping a sheet member containing the material constituting the filter 31 so that the cross section becomes hollow (e.g., cylindrical). Specifically, the object 33 is a paper tube formed by wrapping paper. By forming the object 33 into a paper tube, the material constituting the object 33 can be made substantially the same as the material constituting the filter 31.

[0185] Object 33 is a spiral paper tube formed by laminating and spirally winding multiple sheet materials, at least paper. The spiral paper tube manufacturing method easily allows for the formation of a paper tube with a circular cross-section. Using a spiral paper tube as object 33 reduces the ratio of the area of ​​object 33 to the area of ​​filter portion 30, while also improving the strength of object 33. Furthermore, by laminating paper with sheet materials containing fragrance components, flavor components, tobacco powder, and the like, novel aromatic flavors can be imparted to the aerosol.

[0186] Alternatively, the object 33 may be a straight paper tube formed by wrapping paper in a plurality of layers in a cylindrical shape. In the manufacturing method of the straight paper tube, the amount of glue used to attach the paper can be reduced compared to the manufacturing method of the spiral paper tube.

[0187] In addition, the object 33 may be a paper tube formed by laminating a plurality of sheet members including at least paper. By laminating a plurality of sheet members, the strength of the object 33 can be maintained even when the basis weight of each sheet member is small.

[0188] It should be noted that the hollow member is not limited to a paper tube formed from wrapping paper and can be formed from a tube made of a material such as a synthetic resin that already has a hollow cross-section. There is no particular restriction on the wall thickness of the tube, which is typically 50 μm or more and 500 μm or less, preferably 100 μm or more and 250 μm or less. For example, when the sheet members overlap, the total thickness of the overlapping sheet members can be within the above range. By setting the wall thickness of the tube within the above range, deformation of the object 33 due to pressure from an external source (such as the filter 31) can be suppressed.

[0189] If object 33 is a solid member with a solid cross-section, it is preferred that the solid member have a lower aerosol filtration rate than filter 31. For example, object 33 may be a solid member with a solid cross-section, such as cellulose acetate fiber, which has a lower filtration rate than paper. By making object 33 a solid member with a lower aerosol filtration rate than filter 31, the strength of filter portion 30 can be maintained or improved while maintaining the efficiency of transporting generated substances.

[0190] Alternatively, object 33 may be a hollow member closed at both ends in the centerline direction, having lower or no aerosol permeability than void 31b, or a solid member having lower or no aerosol permeability than void 31b. For example, object 33 may be made of substantially the same material as filter 31, or may be formed using materials such as woven or non-woven fabric, paper, resin, fiber, inorganic adsorbent, porous polymer, rubber, metal, or gelling agent.

[0191] By making the object 33 a hollow member with both ends closed in the centerline direction, the weight of the flavor inhalation article 1 can be reduced compared to using a solid member. Furthermore, by making the object 33 a solid member, the content of the material used in the object 33 in the flavor inhalation article 1 can be increased compared to a hollow member, thereby enhancing the effects of this material. For example, if the object 33 is a capsule that releases its contents upon rupture, the user can control whether the aerosol flow path through the filter 31 is restricted. Furthermore, if the object 33 is a string, for example, the difficulty of aerosol passing through the object 33 can be adjusted by adjusting the gaps between the strings or fibers or the number of strings. Furthermore, if the object 33 is a string, which is thicker than a thread, the amount of string used can be reduced, making manufacturing easier. If the object 33 is a string, manufacturing becomes even easier.

[0192] In addition, the shape of the end of the object 33 in the center line direction (when the shape is cylindrical or columnar) is Figure 1 In the example shown, it is planar, but is not limited thereto and may not be planar.

[0193] Figure 5 are diagrams showing another example of a longitudinal section of the flavor inhalation article 1 according to the first embodiment, wherein (A) shows an object 33 having a sharp second side, and (B) shows an object 33 narrowing from the first side to the second side.

[0194] For example, the shape of the end of the object 33 in the centerline direction may be planar on a first side and sharp on a second side, such as Figure 5 (A). In addition, for example, Figure 5 As shown in (B), the width of the object 33 may be relatively smaller in the second side region compared to the first side region.

[0195] As an example of an inflow hole, the communication hole 70 is a hole that allows the air flowing in from the vent hole 80 formed in the tipping paper to communicate with the gap 31b (see Figure 4 In this embodiment, the position of the communication hole 70 in the centerline direction overlaps with the position of the vent hole 80, and the shape of the opening of the communication hole 70 is the same as the shape of the vent hole 80. In addition, a plurality of communication holes 70 are formed concentrically in the circumferential direction of the filter 31.

[0196] The presence of the communication holes 70 can improve the air permeability of the filter portion 30. Furthermore, the presence of the plurality of communication holes 70 allows air to flow from the outside into the interior of the filter 31 during inhalation, thereby reducing the temperature of the aerosol inhaled by the user. Furthermore, the presence of the plurality of communication holes 70 can reduce the temperature within the filter portion 30, thereby preventing the aerosol from stably adhering to the filter portion 30 and maintaining the efficiency of transporting the generated substance.

[0197] The size of the communication hole 70 perpendicular to the centerline is not particularly limited, but it is preferably based on the condition of the filter 31 to efficiently allow outside air to flow into the filter 31 through the vent hole 80. Specifically, if the filter 31 meets predetermined conditions, the size of the communication hole 70 perpendicular to the centerline is increased compared to when the predetermined conditions are not met. In other words, if the filter 31 meets the predetermined conditions, the communication hole 70 is made deeper than when the predetermined conditions are not met. It should be noted that the communication hole 70 may penetrate the filter 31.

[0198] The predetermined conditions include the configuration (such as material and shape) of the filter 31 meeting specific requirements, or the density of the filter 31 being higher than a threshold value. In addition, the predetermined conditions include the ratio of the area of ​​the voids 31b to the area of ​​the filter 31 in the cross section of the region where the communicating holes 70 are formed being lower than a threshold value, or the distance from the outer peripheral surface of the filter 31 to the outer peripheral surface of the object 33 being lower than a threshold value. Furthermore, the predetermined conditions may include the distance from the outer peripheral surface of the filter 31 to the outer peripheral surface of the object 33 being higher than a threshold value. By setting the size of the communicating holes 70 in a direction orthogonal to the centerline direction in consideration of the state of the filter 31, the air permeability of the filter portion 30 can be effectively improved.

[0199] Furthermore, if the filter portion 30 is in a form in which the filter 31 is wrapped with a wrapping paper 35, it is preferred that the wrapping paper 35 be provided with openings at positions overlapping with the communicating holes 70 provided in the filter 31. When manufacturing such a filter portion 30, the wrapping paper 35 may be prepared with openings overlapping with the communicating holes 70 and wrapped with the wrapping paper. However, from the perspective of ease of manufacturing, it is preferred to first manufacture the filter portion 30 without openings and then create holes penetrating both the filter 31 and the wrapping paper 35. Furthermore, it is more preferred to first manufacture the flavor inhalation product 1 without communicating holes 70 and openings and then create holes penetrating both the filter 31, the wrapping paper 35, and the tipping paper 40.

[0200] Here, use Figure 1 、 Figure 6 and Figure 7 , a specific example of the positional relationship between the object 33 and the vent hole 80 will be explained.

[0201] Figure 6 3 are diagrams showing another example of a longitudinal section of the flavor inhalation article 1 according to the first embodiment, wherein (A) shows a state where the object 33 is positioned on the second side within the filter 31, and (B) shows a state where the object 33 is positioned closer to the center within the filter 31.

[0202] Figure 7 1 is a diagram showing another example of a longitudinal section of the flavor inhalation product 1 according to the first embodiment, wherein (A) shows a state in which an object 33 having the same size as the filter 31 in the centerline direction is positioned within the filter 31, and (B) shows a state in which a plurality of objects 33 are positioned within the filter 31.

[0203] It is preferable that the object 33 is arranged so that the end surface on the second side of the object 33 does not protrude from the end surface on the second side of the filter 31 .

[0204] In this embodiment, ventilation holes 80 are formed at positions corresponding to the filter 31, which is a paper filter. Specifically, the ventilation holes 80 are formed in the area of ​​the tipping paper 40 where the filter 31 is located. This allows air to flow from outside the flavor inhalation product 1 into the interior of the filter 31, which is a paper filter. By allowing outside air to flow into the interior of the filter 31, the temperature of the aerosol can be adjusted while maintaining the efficiency of transporting the generated substances. Furthermore, compared to a case where outside air does not flow directly into the interior of the filter 31, aerosol temperature adjustment is made easier.

[0205] exist Figure 1 In the illustrated example, the position of the vent hole 80 in the centerline direction does not overlap with the position of the object 33 in the centerline direction. Specifically, the object 33, which is smaller than the size of the filter 31 in the centerline direction, is positioned on the first side (the substrate portion 10 side) within the filter 31, and the vent hole 80 is formed on the second side (downstream side) relative to the object 33. In other words, the vent hole 80 is formed in the area on the second side (downstream side) within the filter 31 relative to the object 33.

[0206] By forming the vent holes 80 at positions that do not overlap with the positions of the objects 33 in the centerline direction, it is possible to allow air to flow into the interior of the filter 31 while avoiding the area of ​​the filter 31 with the highest density (see FIG. Figure 3 (B)). Specifically, air may be allowed to flow from a region where the ratio of the area of ​​the gap 31b to the area of ​​the filter 31 in the cross section is higher than that of the region where the object 33 is provided (see Figure 3 (B)) into the interior of the filter 31. If the vent hole 80 is formed at a position overlapping with the position of the object 33 in the centerline direction, the size of the gap 31b communicating with the communication hole 70 becomes smaller, making it difficult for outside air to flow in through the vent hole 80. Therefore, by forming the vent hole 80 at a position that does not overlap with the position of the object 33 in the centerline direction, the size of the gap 31b communicating with the communication hole 70 becomes larger than the predetermined size, thereby promoting the inflow of outside air through the vent hole 80.

[0207] In addition, by forming the vent holes 80 in the area on the second side within the filter 31 relative to the object 33, air flowing in from the outside can efficiently contact the aerosol whose flow path is controlled by the object 33, thereby improving the efficiency of aerosol temperature regulation.

[0208] exist Figure 6In the example shown in (A), an object 33 that is smaller than the size of the filter 31 in the centerline direction is positioned on the second side (downstream side) in the filter 31, and the vent 80 is formed on the first side (matrix portion 10 side) relative to the object 33. In other words, the vent 80 is formed in the region of the first side (upstream side) in the filter 31 relative to the object 33. By forming the vent 80 in the region of the first side in the filter 31 relative to the object 33, air flowing in from the outside can contact the aerosol in a state filled in the filter 31, thereby improving the temperature regulation function of the aerosol. Since the aerosol that controls the flow path during inhalation has already undergone temperature regulation, the aerosol is stable and the efficiency of the substance produced by the flow path control transport can be improved. In addition, by positioning the object 33 in the region of the second side in the filter 31, the strength of the region that the user of the mouthpiece segment 50 holds in his mouth can be enhanced.

[0209] It should be noted that when the object 33 is positioned on the second side within the filter 31, the end surface of the second side of the object 33 may be positioned at the end surface of the second side of the filter 31, or it may be spaced apart from the end surface of the second side of the filter 31. If it is desired to make the object 33 invisible from the end surface of the second side of the filter 31 in the centerline direction of the filter portion 30, it is preferred that the end surface of the second side of the object 33 be spaced apart from the end surface of the second side of the filter 31 by 2 mm or more.

[0210] exist Figure 6 In the example shown in (B), the object 33, which is smaller than the filter 31 in the centerline direction, is positioned closer to the center of the filter 31 in the centerline direction, and the ventilation holes 80 are formed on the first side (the side of the matrix portion 10) relative to the object 33. In other words, the ventilation holes 80 are formed in the area on the first side (upstream side) of the filter 31 relative to the object 33. This allows the strength of the area corresponding to the user's teeth when the mouthpiece segment 50 is bitten to be enhanced, while also improving the efficiency of delivering the generated substance through aerosol temperature regulation and flow path control.

[0211] In addition, an object 33 that is smaller than the size of the filter 31 in the centerline direction can be positioned on the second side (downstream side) within the filter 31 or closer to the center within the filter 31 in the centerline direction, and the vent 80 can be formed on the second side (downstream side) relative to the object 33. By forming the vent 80 in the area on the second side within the filter 31 relative to the object 33, the strength of the area of ​​the mouthpiece segment 50 that the user holds in their mouth can be enhanced, while improving the efficiency of aerosol temperature regulation.

[0212] In addition, if an object 33 that is smaller than the size of the filter 31 in the centerline direction is positioned on the first side (the substrate portion 10 side) within the filter 31, and the end surface of the first side of the object 33 is spaced apart from the end surface of the first side of the filter 31, the vent hole 80 can be formed on the first side (upstream side) relative to the object 33.

[0213] exist Figure 7 In the example shown in (A), the position of the vent hole 80 in the centerline direction overlaps with the position of the object 33 in the centerline direction. Specifically, the object 33 is positioned within the filter 31, and the vent hole 80 is formed in the area where the object 33 is positioned.

[0214] By forming the vent holes 80 at positions overlapping with the positions of the objects 33 in the centerline direction, it is possible to allow air to flow into the high-density area of ​​the filter 31 (see FIG. Figure 3 (B)). Specifically, air can be allowed to flow into a region where the ratio of the area of ​​the gap 31b to the area of ​​the filter 31 in the cross section is low (see Figure 3 (B)), this area is where heat tends to accumulate. Vapor or aerosol passing through the high-density areas of filter 31 is not sufficiently cooled compared to when passing through the low-density areas of filter 31, resulting in reduced efficiency in adhering to filter 31 and transporting the generated substances. Therefore, by allowing air to flow into the areas where heat tends to accumulate through vent holes 80, the temperature in these heat-accumulating areas within filter 31 can be lowered, thereby promoting the aerosolization of the generated substances. In other words, compared to a configuration in which air from the outside does not flow into the area where object 33 is positioned through vent holes 80, the aerosolization of the generated substances can be promoted.

[0215] In addition, Figure 7 In the example shown in (A), the position of the communication hole 70 in the center line direction overlaps with the position of the object 33 in the center line direction. Specifically, the communication hole 70 is formed in a region of the filter 31 with high density and a low ratio of the area of ​​the voids 31b to the area of ​​the filter 31 in the cross section (see Figure 3 (B)). In order to efficiently allow external air to flow into the filter 31 through the vent hole 80, Figure 7 The communicating hole 70 shown in (A) is deeper than when the position of the communicating hole 70 in the center line direction does not overlap with the position of the object 33 in the center line direction (see Figure 1 By increasing the size of the communication hole 70 in the direction orthogonal to the centerline direction, the air permeability in the filter portion 30 can be made equivalent to the air permeability when the position of the communication hole 70 in the centerline direction does not overlap with the position of the object 33 in the centerline direction.

[0216] The object 33 should be arranged so that the end surface of the second side of the object 33 does not protrude from the end surface of the second side of the filter 31; Figure 7 As shown in (A), an object 33 having the same size as the filter 31 in the center line direction can be positioned in the filter 31. In addition, when a plurality of objects 33 are arranged, the arrangement of the objects 33 is not limited to the same area in the center line direction, such as Figure 4 (B) Figure 7 As shown in (B), the object 33 can be positioned in multiple areas within the filter 31. By increasing the proportion of the object 33 relative to the filter 31, the effect of the object 33 can be enhanced.

[0217] As described above, the flavor inhalation article 1 includes: a base portion 10 containing an aerosol source 11; a mouthpiece segment 50 through which the aerosol passes; and a tipping paper 40 wrapped around the outside of the base portion 10 and the mouthpiece segment 50. The mouthpiece segment 50 includes a cooling portion 20, which cools vapor generated by heating the base portion 10 to generate an aerosol, and a filter portion 30, which includes a paper filter. The filter portion 30 includes a filter 31, which is a paper filter, and an object 33, which is different from the filter 31 and is disposed within the filter 31. Furthermore, the tipping paper 40 is formed with ventilation holes 80. It should be noted that, from the perspective of compactness in the centerline direction, the flavor inhalation article 1 may not include the cooling portion 20.

[0218] The vent holes 80 allow air to flow from the outside of the flavor inhalation article 1 into the interior of the mouthpiece segment 50 .

[0219] This allows air to flow from the outside into the interior of the mouthpiece segment 50 during inhalation, while controlling the flow path of the aerosol inhaled by the user through the object 33. Thus, the temperature of the aerosol can be regulated while maintaining the efficiency of delivering the substance produced.

[0220] <Second embodiment>

[0221] Figure 8 3 are diagrams showing a longitudinal section of the flavor inhalation article 2 according to the second embodiment, wherein (A) shows a state where the object 33 is positioned on the first side within the filter 31 , and (B) shows a state where the object 33 is positioned on the second side within the filter 31 .

[0222] 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 mouthpiece segment 250 corresponding to the mouthpiece segment 50 is different. Specifically, the mouthpiece segment 250 according to the second embodiment differs from the mouthpiece segment 50 according to the first embodiment in that the filter portion 230 corresponding to the filter portion 30 is different. 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 are omitted.

[0223] Filter section 230 includes filter 31 (a paper filter), separate filter 32 (an independent filter separate from filter 31), an object 33 different from filter 31, and wrapping paper 35, which is located between filter 31 and tipping paper 40 and wrapped around the outer peripheral surface of filter 31. Filter 31 is formed with communication holes 70 as an example of an inflow hole. Filter section 230 is connected (associated) to cooling section 20 by being wrapped together with tipping paper 40. It should be noted that filter 31 and separate filter 32 are preferably wrapped with a separate wrapping paper 35 and then further wrapped together with another wrapping paper 35.

[0224] The cross section of the individual filter 32 in the filter portion 230 is substantially circular, and the circumference can be appropriately adjusted according to the size of the product, but can be, for example, 22 mm or more and 27 mm or less. It should be noted that if the cross section is not circular, the above circumference is applied by adopting a circle having the same area as the cross section, and the circumference of the circle is used.

[0225] The air resistance and size of the filter portion 230 in the centerline direction may be exemplified as the same as those of the filter portion 30. The shapes and sizes of the filter 31 and the separate filter 32 may be appropriately adjusted to fall within the above ranges of the filter portion 230.

[0226] The separate filter 32 comprises a filter material and is not particularly limited, as long as it performs the general functions of a filter. General filter functions include, for example, regulating the amount of air mixed during aerosol inhalation, reducing flavor, and reducing nicotine and tar, but it need not perform all of these functions. Furthermore, in heat-not-burn flavor inhalation products 2, which tend to have fewer generated components and a lower aerosol source 11 filling rate than cigarette products, it is also important to prevent the components contained in the flavor inhalation product 2 from separating while suppressing the filtering function.

[0227] The filter material constituting the separate filter 32 is, for example, a cylindrical filler material such as cellulose acetate fiber, nonwoven fabric, or pulp paper. Alternatively, a paper filter filled with sheet-like pulp paper may be used. In addition to these fillers, inorganic adsorbents (such as activated carbon, sepiolite, palygorskite, zeolite, activated carbon fiber, activated alumina, sepiolite-mixed paper, silica gel, activated clay, vermiculite, diatomaceous earth, etc.) and polymer porous bodies (such as pulp, various fibers, ion exchange resins, etc.) may also be used.

[0228] The packing density of the filter material constituting the individual filter 32 is not particularly limited, but is generally 90 mg / cm 3 Above and 360mg / cm 3 Below, preferably 150mg / cm 3 Above and 240mg / cm 3 the following.

[0229] exist Figure 8 In the example shown in (A), the filter section 230 includes a filter 31 and a separate filter 32 positioned on a first side of the filter 31. In other words, the separate filter 32 is positioned on the upstream side within the filter section 230, and the filter 31 is positioned on the downstream side. Furthermore, an object 33, which is smaller than the centerline size of the filter 31, is positioned on the first side (the substrate portion 10 side) within the filter 31, and the vent 80 is formed on the second side (downstream side) relative to the object 33. In other words, the vent 80 is formed in a region on the second side (downstream side) within the filter section 230 relative to the object 33.

[0230] like Figure 8 As shown in FIG. 2(B), an object 33 smaller than the size of the filter 31 in the centerline direction may be positioned on the second side (downstream side) within the filter 31. The object 33 may be positioned in the area on the second side (downstream side) within the filter 31, and the vent hole 80 may be formed on the first side (upstream side) relative to the object 33.

[0231] 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 can be changed. For example, Figure 9 As shown, the filter portion 230 may have a filter 31 positioned on the upstream side and a separate filter 32 located on the downstream side.

[0232] Figure 91 are views showing another example of a longitudinal section of the flavor inhalation article 2 according to the second embodiment, wherein (A) is a view showing a state in which the object 33 is positioned on the first side in the filter 31, and (B) is a view showing a state in which the object 33 is positioned on the second side in the filter 31.

[0233] When the filter portion 230 includes a filter 31 and a separate filter 32 positioned on a second side of the filter 31, an object 33 smaller than the size of the filter 31 in the centerline direction can be positioned on the first side (the substrate portion 10 side) within the filter 31, such as Figure 9 (A) and the vent hole 80 can be formed on the second side (downstream side) relative to the object 33. In addition, the object 33 smaller than the size of the filter 31 in the center line direction can be positioned on the second side (downstream side) within the filter 31, as shown in FIG. Figure 9 As shown in (B), the vent hole 80 may be formed on the first side (upstream side) relative to the object 33 .

[0234] The vent hole 80 only needs to be formed in the area where the filter portion 230 is located, and is not limited to Figure 8 and Figure 9 For example, the vent hole 80 may be formed in the region where the separate filter 32 is located. Alternatively, the vent hole 80 may be formed in both the region where the filter 31 is located and the region where the separate filter 32 is located.

[0235] As described above, the filter portion 230 of the flavor inhalation article 2 according to the second 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 object 33 disposed inside the filter 31 and different from the filter 31. Furthermore, the tipping paper 40 is formed with ventilation holes 80 at positions corresponding to the filter portion 230. The presence of the separate filter 32 in addition to the filter 31 can improve the efficiency of delivering the generated substance. Furthermore, it allows for diversified aerosol temperature regulation.

[0236] It should be noted that in the above example, the filter portion 230 has a dual structure having the filter 31 as a paper filter and the separate filter 32, but is not limited thereto. In addition to the filter 31 as a paper filter, the filter portion 230 may also include two or more types of filters.

[0237] <Third embodiment>

[0238] Figure 103 are diagrams showing a longitudinal section of a flavor inhalation article 3 according to a third embodiment, wherein (A) shows a state in which an object 33 is positioned on a first side of an aerosol modifier 34, (B) shows a state in which the object 33 is positioned on a second side of the aerosol modifier 34, and (C) shows a state in which the object 33 is positioned on both the first and second sides of the aerosol modifier 34.

[0239] 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 mouthpiece segment 350 corresponding to the mouthpiece segment 50 is different. Specifically, the mouthpiece segment 350 according to the third embodiment differs from the mouthpiece segment 50 according to the first embodiment in that the filter portion 330 corresponding to the filter portion 30 has multiple objects with different forms. 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 are omitted.

[0240] Filter portion 330 includes filter 31 (a paper filter), an object 33 different from filter 31, an aerosol modifier 34 that modifies aerosols, and wrapping paper 35, which is placed between filter 31 and tipping paper 40 and wrapped around the outer circumference of filter 31. Filter 31 is formed with communication holes 70, which serve as an example of an inflow hole. Filter portion 330 is connected (associated) to cooling portion 20 by being wrapped together with tipping paper 40. Note that wrapping paper 35 may not be included.

[0241] As an example of an object, the aerosol modifier 34 is provided in the filter 31 of the filter portion 330 and is an object different from the filter 31. The aerosol modifier 34 modifies the aerosol passing through the filter 31.

[0242] There is no particular limitation on “modification of the aerosol” as long as the mass of the aerosol before passing through the aerosol modifier 34 is different from the mass of the aerosol after passing through the aerosol modifier 34, but it is preferred that the mass of the aerosol after passing through the aerosol modifier 34 is improved compared to the mass of the aerosol before passing through the aerosol modifier 34.

[0243] For example, the aerosol modifier 34 releases flavor-affecting components, thereby changing the flavor of the aerosol perceived by the user. Furthermore, the aerosol modifier 34 can improve the quality of the aerosol by adsorbing and removing certain components contained in the aerosol with which it comes into contact. Components contained in the aerosol, for example, are substances generated by heating the substrate 10. Furthermore, the aerosol modifier 34 can improve the quality of the aerosol by denaturing certain components contained in the aerosol with which it comes into contact.

[0244] The aerosol modifier 34 is, for example, a destructible capsule that releases the contents including the flavor component when an external force is applied.

[0245] Aerosol modifier 34 is preferably embedded in a position where the contents do not leak from the end faces on the first and second sides of filter 31. In other words, aerosol modifier 34 is preferably positioned so that diffusion of the contents is contained within filter portion 330.

[0246] The aerosol modifier 34 includes contents containing at least one of a flavor component and a fragrance component, and a capsule containing these contents. The aerosol modifier 34 is crushed by the user, causing the capsule to break and release the contents. Crushing involves, for example, pressing the wrapping paper 35 and the tipping paper 40 between the thumb and index finger to apply pressure to the aerosol modifier 34, which is a destructible capsule.

[0247] 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.

[0248] There is no particular limitation on flavoring components, and for example powdered spices, oily spices etc. can be included. Main powdered spices include chamomile, fenugreek, menthol, mint, cinnamon, herb etc. in powdered form. Main oily spices include lavender, cinnamon, cardamom, celery, cloves, West Indian bittersweet tree, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon, orange, mint, cinnamon, caraway, cognac (cognac), jasmine, chamomile, menthol, low-grade cinnamon (cassia), ylang-ylang, sage, spearmint, fennel, Spanish bell pepper, ginger, anise, coriander, coffee, tobacco etc. Flavoring components can be used alone or in combination of two or more. When using powdered spices, it is preferred that particle size is below 500 μm. Flavoring components are preferably liquid or substantially soluble in the oral cavity.

[0249] The contents may include at least one of a flavor component and a spice component, and may further include a colorant, such as a synthetic colorant and a natural colorant. Preferred colorants include food additives, such as Red No. 3 and No. 106, β-carotene, copper chlorophyll, gardenia blue, lemon yellow No. 4, and the like.

[0250] The contents may further include a solvent for dissolving flavor components, fragrance components, and colorants. Examples of solvents include medium chain triglycerides, glycerol, propylene glycol, water, ethanol, and the like.

[0251] When the contents are liquid or gel-like, they can penetrate the filter 31 and the wrapping paper 35. Therefore, a viscosity of 20 mPa·s or greater and 30 mPa·s or greater is preferred. Furthermore, a viscosity of 120 mPa·s or less and 90 mPa·s or less is preferred. Setting the viscosity of the contents above the lower limit allows the contents to spread within the flavor inhalation article 3, thereby imparting a new flavor to the aerosol. Furthermore, setting the viscosity of the contents below the upper limit prevents the contents from penetrating the filter 31 and the wrapping paper 35 too quickly, which could cause the contents to leak out of the flavor inhalation article 3 during use.

[0252] Furthermore, if the amount of liquid in the content per unit area of ​​the cross section of the filter 31 is less than 0.2 μl / mm2, there is a risk that the content may not be able to sufficiently penetrate the filter 31. On the other hand, if the amount of liquid in the content per unit area of ​​the cross section of the filter 31 is greater than 2.2 μl / mm2, there is a risk that the content may reach the end surface of the second side of the flavor inhalation article 3 and adhere to the user. It is preferred that the amount of liquid in the content per unit area of ​​the cross section of the filter 31 is 0.2 μl / mm2 or more and 2.2 μl / mm2 or less. 2 Below, more preferably 0.3 μl / mm 2 Above and 0.7μl / mm 2 the following.

[0253] Materials for the capsule body include, for example, 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 include a flavor component, a plasticizer, a colorant, etc.

[0254] When the aerosol modifier 34 is a destructive capsule, its shape is not particularly limited and may be spherical, cylindrical, or truncated conical. Examples of the destructive capsule include a spherical shape with a diameter of 2.5 mm to 4.0 mm, and a cylindrical shape with a size of 5 mm to 10 mm in the centerline direction and a diameter of 5 mm to 7 mm. Furthermore, when multiple spherical destructive capsules are arranged, it is preferred that the destructive capsules have a diameter of 3.5 mm or less.

[0255] The method for producing the destructible capsule is not particularly limited, but a dropping method capable of producing a destructible capsule having a seamless capsule body is preferably used.

[0256] The aerosol modifier 34 is described as a destructible capsule that releases the contents containing the flavor component when an external force is applied, but it is not limited thereto as long as it modifies the aerosol.

[0257] For example, the aerosol modifier 34 may be an adsorbent having the function of adsorbing and removing substances generated by heating the substrate 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 modifier 34, a granular adsorbent may be added to the filter 31, and, for example, an adsorbent granulated into a spherical shape with a diameter of 2.5 mm or more and 4.0 mm or less may be positioned in the filter 31.

[0258] Alternatively, for example, the aerosol modifier 34 may be a fragrance carrier that releases fragrance components when moisture or heat is applied. The fragrance carrier is not particularly limited and may include a fragrance carrier in which the fragrance components are carried on a carrier such as dextrin or cyclodextrin. As the aerosol modifier 34, a sheet-like fragrance carrier may be positioned in the filter 31, or a fragrance carrier granulated into a spherical shape with a diameter of 2.5 mm or more and 4.0 mm or less may be positioned in the filter 31.

[0259] The position of the aerosol modifier 34 in the longitudinal section of the filter portion 330 is not particularly limited, but it is preferably arranged in line with the object 33 in the centerline direction. In other words, it is preferred that the aerosol modifier 34 be arranged in line with the object 33 in the longitudinal direction of the filter portion 330.

[0260] Specifically, it is preferred that the aerosol modifier 34 be disposed at a position corresponding to the object 33, such as a position where the aerosol passes through or has passed through the object 33, or a position where the aerosol passes through the object 33 and collides with the aerosol modifier 34. By disposing the aerosol modifier 34 at a position corresponding to the object 33, not only can the flow path of the aerosol be controlled, but also the efficiency of delivering the modified aerosol can be improved.

[0261] exist Figure 10In the example shown in (A), the filter portion 330 has an aerosol modifier 34 positioned on the second side (downstream side) relative to an object 33 that is smaller than the size of the filter 31 in the centerline direction, and the aerosol modifier 34 is arranged in line with the object 33 in the centerline direction. In addition, the vent 80 is positioned on the second side (downstream side) relative to the object 33, which is located on the first side (upstream side) within the filter 31 and is formed on the first side (upstream side) relative to the aerosol modifier 34.

[0262] By allowing air flowing in from the outside through the vent hole 80 to efficiently contact the aerosol whose flow path is controlled by the object 33 , the stable aerosol can be modified.

[0263] like Figure 10 As shown in FIG. 2B , the filter portion 330 may include an aerosol modifier 34 positioned on a first side (on the substrate portion 10 side) relative to an object 33 that is smaller than the size of the filter 31 in the centerline direction, and the aerosol modifier 34 is arranged in line with the object 33 in the centerline direction. Furthermore, the vent 80 may be formed on a first side (upstream side) relative to the object 33 that is positioned on a second side (downstream side) within the filter 31, and on a second side (downstream side) relative to the aerosol modifier 34.

[0264] By allowing air flowing in from the outside through the vent hole 80 to contact the modified aerosol in a state filled in the filter 31 , the efficiency of delivering the generated substance and new flavor through flow path control can be improved.

[0265] like Figure 10 As shown in FIG. 3 (C), the filter portion 330 may have the aerosol modifier 34 positioned in the region between the plurality of objects 33, and the aerosol modifier 34 may be arranged in line with the plurality of objects 33 in the centerline direction. For example, when there are a plurality of objects 33, the vent 80 may be formed in the region between the objects 33 and the aerosol modifier 34 on the first side (upstream side) within the filter 31, and the vent 80 may not be formed in the region between the objects 33 and the aerosol modifier 34 on the second side (downstream side) within the filter 31. Alternatively, for example, the vent 80 may not be formed in the region between the objects 33 and the aerosol modifier 34 on the first side (upstream side) within the filter 31, and the vent 80 may be formed in the region between the objects 33 and the aerosol modifier 34 on the second side (downstream side) within the filter 31. In addition, for example, the vent 80 can be simultaneously formed in the area between the object 33 and the aerosol modifier 34 on the first side (upstream side) within the filter 31, and in the area between the object 33 and the aerosol modifier 34 on the second side (downstream side) within the filter 31.

[0266] It should be noted that the region where the vent holes 80 are formed may be a region different from the region between the object 33 and the aerosol modifier 34 within the region where the filter 31 is located.

[0267] 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 object 33, which is different from the filter 31, and the aerosol modifier 34, which modifies the aerosol. Furthermore, the tipping paper 40 is formed with ventilation holes 80 at positions corresponding to the filter portion 330. By having the aerosol modifier 34 in the filter portion 330, the aerosol generated from the base portion 10 can be modified during inhalation.

[0268] <Fourth embodiment>

[0269] Figure 11 : is a diagram showing a longitudinal section of a flavor inhalation article 4 according to a fourth embodiment.

[0270] The flavor inhalation article 4 according to the fourth embodiment differs from the flavor inhalation article 1 according to the first embodiment in that the mouthpiece segment 450 corresponding to the mouthpiece segment 50 and the vent holes 480 corresponding to the vent holes 80 are different. Specifically, the flavor inhalation article 4 according to the fourth embodiment differs from the flavor inhalation article 1 according to the first embodiment in that the vent holes are not formed in the area where the filter portion 430 of the mouthpiece segment 450 is located, and the vent holes 480 are formed in the area where the cooling portion 420 is located. The differences from the first embodiment will be described below. In the first and fourth embodiments, the same reference numerals are used for the same components, and detailed descriptions are omitted.

[0271] The vent holes 480 are holes formed in the tipping paper 40 and are used to allow air to flow from the outside of the flavor inhalation product 4 into the inside of the filter portion 430. The shape and number of the vent holes 480 can be exemplified as being the same as the shape and number of the vent holes 80 formed in the tipping paper 40 according to the first embodiment. The shape and size of the vent holes 480 can be appropriately adjusted according to the shape and size of the flavor inhalation product 4.

[0272] The mouthpiece segment 450 includes a cooling portion 420 and a filter portion 430. The mouthpiece segment 450 is connected (associated) to the base portion 10 by wrapping the base portion 10 with the tipping paper 40. The shape and size of the mouthpiece segment 450 can be exemplified as being the same as those of the mouthpiece segment 50 according to the first embodiment. It should be noted that the shape and size of the mouthpiece segment 450 can be appropriately adjusted according to the shape and size of the flavor inhalation article 4.

[0273] The filter portion 430 includes a filter 31 through which aerosol passes, an object 33 different from the filter 31, and a wrapping paper 35 that exists between the filter 31 and the tipping paper 40 and is wrapped around the outer peripheral surface of the filter 31. The filter portion 430 is connected (associated) to the cooling portion 420 by being wrapped together with the cooling portion 420 using the tipping paper 40. It should be noted that the wrapping paper 35 may not be included. In this embodiment, the filter 31 is not formed with the communicating hole 70 (see Figure 1 ).

[0274] The cooling portion 420, which is an example of a cylindrical member, is positioned adjacent to the base portion 10 and the filter portion 430 and is formed into a portion having a hollow (cavity) cross section (such as a cylinder) by wrapping the sheet 21. The cooling portion 420 is formed with a through hole 60, which is an example of an inflow hole. In addition, the shape and size of the cooling portion 420 can be exemplified as the same as those of the cooling portion 20 according to the first embodiment.

[0275] Note that the cooling portion 420 may be formed of a synthetic resin pipe or the like that already has a hollow cross section, as long as the cross section is hollow.

[0276] The through-holes 60, which serve as an example of inflow holes, penetrate the sheet 21 and allow air flowing in from the vent holes 480 formed in the tipping paper to flow into the cooling portion 420. In this embodiment, the positions of the through-holes 60 in the centerline direction overlap with the positions of the vent holes 480 in the centerline direction, and the shapes of the through-holes 60 can be exemplified as being the same as the shapes of the vent holes 480. Furthermore, a plurality of through-holes 60 are formed concentrically in the circumferential direction of the cooling portion 420.

[0277] The presence of the through holes 60 can improve the air permeability of the cooling portion 420. In addition, the presence of multiple through holes 60 allows air to flow from the outside into the interior of the cooling portion 420 during inhalation, thereby reducing the temperature of the steam and air flowing in from the matrix portion 10 and regulating the temperature of the aerosol. In addition, by positioning the through holes 60 in the cooling portion 420 at a position more than 4 mm from the boundary between the cooling portion 420 and the filter portion 430 in the direction along the cooling portion 420, not only can the cooling capacity be improved, but the retention of substances generated by heating within the cooling portion 420 can also be suppressed, thereby increasing the amount of substances transported.

[0278] In addition, by forming the through hole 60 and the vent hole 480 in the region of the cooling portion 420, the stable aerosol can pass through the filter portion 430. Compared to a configuration in which air does not flow from the outside into the interior of the cooling portion 420, the temperature of the aerosol can be adjusted while maintaining the efficiency of transporting the generated substance.

[0279] It should be noted that when the substrate portion 10 is heated, vapor generated using the aerosol as condensation nuclei may come into contact with air from the outside, causing a temperature drop and liquefaction, thereby promoting the generation of aerosol.

[0280] When the plurality of through holes 60 concentrically present in the cooling portion 420 is regarded as a 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 transport of the component generated by heating, it is preferable that no group of through holes is provided in an area less than 4 mm from the boundary between the cooling portion 420 and the filter portion 430 in the direction of the cooling portion 420.

[0281] In addition, when the flavor inhalation product 4 is in the form of a base portion 10, a cooling portion 420, and a filter portion 430 wrapped with a tipping paper 40, it is preferred that the tipping paper 40 be provided with ventilation holes 480 immediately above the through-holes 60 provided in the cooling portion 420. When manufacturing such a flavor inhalation product 4, the tipping paper 40 having the ventilation holes 480 overlapping with the through-holes 60 may be prepared and wrapped. However, from the perspective of ease of manufacturing, it is preferred to first produce the flavor inhalation product 4 without the through-holes 60 and then create holes penetrating both the cooling portion 420 and the tipping paper 40.

[0282] From the perspective of improving the transport of substances generated by heating, the area where through-holes 60 are located is not particularly limited, as long as the area is at least 4 mm from the boundary between cooling section 420 and filter section 430 in the direction of cooling section 420. However, from the perspective of further improving the transport of the generated substances, it is preferred that the area be at least 4.5 mm, more preferably at least 5 mm, and even more preferably at least 5.5 mm. Furthermore, from the perspective of ensuring the cooling function, it is preferred that the area where through-holes 60 are located be no more than 15 mm, more preferably no more than 10 mm, and even more preferably no more than 7 mm from the boundary between cooling section 420 and filter section 430.

[0283] Furthermore, taking the boundary between the cooling portion 420 and the matrix portion 10 as a reference, when the size of the cooling portion 420 in the centerline direction is 20 mm or larger, from the perspective of ensuring the cooling function, it is preferred that the region where the through-holes 60 are located be at least 5 mm, more preferably at least 10 mm, and even more preferably at least 13 mm, from the boundary between the cooling portion 420 and the matrix portion 10 in the direction of the cooling portion 420. Furthermore, from the perspective of increasing the amount of heated product delivered, it is preferred that the region where the through-holes 60 are located be at most 16 mm, more preferably at most 15.5 mm, even more preferably at most 15 mm, and particularly preferably at most 14.5 mm, from the boundary between the cooling portion 420 and the matrix portion 10.

[0284] As described above, the mouthpiece segment 450 of the flavor inhalation article 4 according to the fourth embodiment includes a cooling portion 420 and a filter portion 430. The cooling portion 420 is formed with a through-hole 60, which serves as an example of an inflow hole. The filter portion 430 includes a filter 31, which is a paper filter, and an object 33, which is different from the filter 31. Furthermore, the tipping paper 40 is formed with ventilation holes 480 at positions corresponding to the cooling portion 420. By forming the through-hole 60 and ventilation holes 480 in the region of the cooling portion 420, a stable aerosol can pass through the filter portion 430, the flow path of which is controlled by the object 33. Thus, the temperature of the aerosol can be adjusted while maintaining or improving the efficiency of delivering the generated substance.

[0285] <Fifth embodiment>

[0286] Figure 12 is a diagram showing a longitudinal section of a flavor inhalation article 5 according to a fifth embodiment.

[0287] 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 mouthpiece segment 550 corresponding to the mouthpiece segment 450 is different. Specifically, the mouthpiece segment 550 according to the fifth embodiment differs from the mouthpiece segment 450 according to the fourth embodiment in that each of the multiple groups of flow holes is formed in a different area. 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 are omitted.

[0288] The mouthpiece segment 550 includes a cooling portion 420 and a filter portion 30. The mouthpiece segment 550 is connected (associated) to the base portion 10 by wrapping the base portion 10 with the tipping paper 40. The shape and size of the mouthpiece segment 550 can be exemplified as being the same as those of the mouthpiece segment 50 according to the first embodiment. It should be noted that the shape and size of the mouthpiece segment 550 can be appropriately adjusted according to the shape and size of the flavor inhalation article 5.

[0289] In this embodiment, a plurality of ventilation holes 80 and 480 are formed in the tipping paper 40. The ventilation holes 80 are formed in the region where the filter portion 30 is located, and the filter 31 of the filter portion 30 is formed with the communication holes 70. Furthermore, the ventilation holes 480 are formed in the region where the cooling portion 420 is located, and the sheet 21 of the cooling portion 420 is formed with the through holes 60. For example, the positions of the ventilation holes 80 in the centerline direction overlap with the positions of the communication holes 70 in the centerline direction, and the positions of the ventilation holes 480 in the centerline direction overlap with the positions of the through holes 60 in the centerline direction.

[0290] exist Figure 12In the example shown, the object 33, which is smaller than the size of the filter 31 in the centerline direction, is positioned on the first side (the substrate portion 10 side) within the filter 31, and the vent hole 80 is formed on the second side (downstream side) relative to the object 33. In addition, the vent hole 480 is formed on the first side (upstream side) relative to the object 33 and on the first side (upstream side) relative to the filter 31. In other words, Figure 12 In the illustrated example, the vent holes 80 are formed in the region where the filter 31 containing the object 33 is located, and the vent holes 480 are formed in the region where the cooling portion 420 is located. By allowing air to flow in from the outside through the plurality of vent holes 80 and 480, the efficiency of transporting the generated substance can be increased and the temperature regulation function of the aerosol can be improved.

[0291] It should be noted that the position of the object 33 in the filter 31, the size of the object 33 in the centerline direction, and the positional relationship of the vent hole 80 and the communication hole 70 relative to the object 33 in the centerline direction are not limited to Figure 12 In addition, as long as air flows from the outside into the filter 31 through the plurality of vent holes 80 and 480, the position of the vent hole 80 does not need to overlap with the communication hole 70, and the position of the vent hole 480 does not need to overlap with the through hole 60.

[0292] As described above, the mouthpiece segment 550 of the flavor inhalation article 5 according to the fifth embodiment includes a cooling portion 420 and a filter portion 30. The filter portion 30 includes a filter 31, which is a paper filter, and an object 33, which is different from the filter 31. Furthermore, the cooling portion 420 is formed with a through-hole 60, and the filter 31 of the filter portion 30 is formed with a communication hole 70. Furthermore, the tipping paper 40 is formed with a plurality of ventilation holes 80 and 480, which overlap with the through-hole 60 and the communication hole 70. By forming each of the plurality of ventilation holes 80 and 480 in the regions of the filter 31 and the cooling portion 420, the amount of air flowing in from outside the flavor inhalation article 5 can be increased. Furthermore, by forming each of the plurality of ventilation holes 80 and 480 in different regions, the aerosol is provided with multiple opportunities to come into contact with air from outside. Consequently, the temperature of the aerosol can be adjusted while maintaining or improving the efficiency of delivering the generated substance.

[0293] <Sixth embodiment>

[0294] Figure 13 is a diagram showing a longitudinal section of a flavor inhalation article 6 according to a sixth embodiment.

[0295] Figure 143 are diagrams showing another example of a longitudinal section of the flavor inhalation article 6 according to the sixth embodiment, wherein (A) shows a state where the object 33 is positioned on the second side within the filter 31, and (B) shows a state where the object 33 is positioned closer to the center within the filter 31.

[0296] Figure 15 1 is a diagram showing another example of a longitudinal section of the flavor inhalation article 6 according to the sixth embodiment, wherein (A) shows a state in which an object 33 having the same size as that of the filter 31 in the centerline direction is positioned within the filter 31, and (B) shows a state in which a plurality of objects 33 are positioned within the filter 31.

[0297] The flavor inhalation article 6 according to the sixth embodiment differs from the flavor inhalation article 1 according to the first embodiment in terms of usage. Furthermore, the flavor inhalation article 6 according to the sixth embodiment differs from the flavor inhalation article 1 according to the first embodiment in that the mouthpiece segment 650 corresponding to the mouthpiece segment 50 is different. The differences from the first embodiment will be described below. In the fifth and sixth embodiments, the same reference numerals are used for the same components, and detailed descriptions are omitted.

[0298] The flavor inhalation article 6 is a combustion-type flavor inhalation article. It is used by burning the end face on a first side, which is the side opposite the second side that the user holds in their mouth for inhalation. An aerosol source 11 contained in a base portion 10 generates vapor through heating associated with combustion, and the vapor is used to generate the aerosol.

[0299] The cross section of the flavor inhalation article 6 is substantially circular, and its circumference can be appropriately adjusted according to the size of the product, but is generally 16 mm or more and 27 mm or less, preferably 22 mm or more and 25 mm or less. It should be noted that if the cross section is not circular, the above circumference is applied by adopting a circle having the same area as the cross section, and the circumference of the circle is used.

[0300] The size of the flavor inhalation article 6 in the centerline direction can be appropriately adjusted according to the size of the product, but is generally 60 mm or more and preferably 120 mm or less, more preferably 80 mm or more and 100 mm or less.

[0301] The mouthpiece section 650 is constituted by the filter portion 30 .

[0302] The size of the nozzle segment 650 in the centerline direction can be appropriately adjusted according to the size of the product, but it is generally 20 mm or more and preferably 40 mm or less, more preferably 25 mm or more and 30 mm or less.

[0303] exist Figure 13In the example shown, the object 33 is positioned on the first side (the substrate portion 10 side) within the filter 31, and the communication hole 70 and the vent hole 80 are formed on the second side (downstream side) relative to the object 33. In other words, the communication hole 70 and the vent hole 80 are formed in the region on the second side (downstream side) within the filter 31 relative to the object 33.

[0304] In addition, when the object 33 is positioned on the second side (downstream side) in the filter 31, as shown in FIG. Figure 14 As shown in (A), the communication hole 70 and the vent hole 80 may be provided in an upstream region relative to the object 33 .

[0305] Furthermore, when the object 33 is positioned closer to the center within the filter 31 in the centerline direction, as shown in FIG. Figure 14 As shown in (B), the communication hole 70 and the vent hole 80 may be provided in an upstream region relative to the object 33. Note that the communication hole 70 and the vent hole 80 may also be provided in a downstream region relative to the object 33.

[0306] In addition, if Figure 15 As shown in (A), the communication hole 70 and the vent hole 80 can be set at a position overlapping with the position of the object 33 in the center line direction. The object 33 should be arranged so that the end surface of the second side of the object 33 does not protrude from the end surface of the second side of the filter 31, and the size of the object 33 in the center line direction can be smaller than or equal to the size of the filter 31 in the center line direction. In addition, as Figure 15 As shown in (B), the object 33 can be positioned in multiple areas within the filter 31.

[0307] As described above, the flavor inhalation article 6 according to the sixth embodiment includes the base portion 10 containing the aerosol source 11, the mouthpiece segment 650 through which the aerosol passes, and the tipping paper 40 wrapped around the outer peripheral surfaces of the base portion 10 and the mouthpiece segment 650. The mouthpiece segment 650 includes the filter portion 30, which includes a paper filter. The filter portion 30 includes the filter 31, which is a paper filter, and an object 33, which is different from the filter 31 and is disposed inside the filter 31. Furthermore, the ventilation hole 80 is formed in the tipping paper 40 in the area where the mouthpiece segment 650 is located. When a paper filter is used in a combustion-type flavor inhalation article, the temperature of the aerosol can be adjusted while maintaining the efficiency of transporting the generated substances.

[0308] <Seventh embodiment>

[0309] Figure 16 3 and 4 are diagrams showing a longitudinal section of a flavor inhalation article 7 according to a seventh embodiment, wherein (A) shows a state where an object 33 is positioned on a first side within a filter 31 , and (B) shows a state where the object 33 is positioned on a second side within the filter 31 .

[0310] Figure 17 1 are views showing another example of a longitudinal section of the flavor inhalation article 7 according to the seventh embodiment, wherein (A) is a view showing a state in which the object 33 is positioned on the first side in the filter 31, and (B) is a view showing a state in which the object 33 is positioned on the second side in the filter 31.

[0311] The flavor inhalation article 7 according to the seventh embodiment differs from the flavor inhalation article 6 according to the sixth embodiment in that the mouthpiece segment 750 corresponding to the mouthpiece segment 650 is different. The differences from the sixth embodiment will be described below. In the sixth and seventh embodiments, the same reference numerals are used for the same components, and detailed descriptions are omitted.

[0312] The nozzle section 750 is composed of the filter portion 230. Specifically, the filter portion 230 of the nozzle section 750 includes the filter 31 (which is a paper filter), the separate filter 32 (which is an independent filter separate from the filter 31), an object 33 different from the filter 31, and a wrapping paper 35 that is present between the filter 31 and the tipping paper 40 and wrapped around the outer peripheral surface of the filter 31. It should be noted that it is preferable that the filter 31 and the separate filter 32 are wrapped with a separate wrapping paper 35 and then further wrapped together with another wrapping paper 35.

[0313] The shape and size of the nozzle segment 750 can be exemplified as the same as the shape and size of the nozzle segment 650 according to the sixth embodiment. In addition, by appropriately adjusting the shape and size of the filter 31 and the separate filter 32, the shape and size of the filter portion 230 can be appropriately adjusted to fall within the aforementioned range.

[0314] exist Figure 16 In the example shown in (A), the filter portion 230 of the mouthpiece segment 750 includes a filter 31 and a separate filter 32 positioned on the first side of the filter 31. In other words, the separate filter 32 is positioned on the upstream side, and the filter 31 is positioned on the downstream side. In addition, the object 33 is positioned on the first side (the substrate portion 10 side) in the filter 31, and the communication hole 70 and the vent 80 are formed on the second side (downstream side) relative to the object 33. In other words, the communication hole 70 and the vent 80 are formed in the region of the second side (downstream side) in the filter portion 230 relative to the object 33.

[0315] In addition, if Figure 16 As shown in FIG. 2B , the object 33 may be located on the second side (downstream side) of the filter 31 . The communication hole 70 and the vent hole 80 may be formed on the first side (upstream side) relative to the object 33 located in the second side (downstream side) of the filter 31 .

[0316] exist Figure 17 In the example shown in (A), the filter portion 230 of the mouthpiece segment 750 may include a filter 31 and a separate filter 32 positioned on a second side of the filter 31. In other words, the filter 31 may be positioned on the upstream side, and the separate filter 32 may be positioned on the downstream side within the filter portion 230. In addition, the object 33 is positioned on the first side (the substrate portion 10 side) within the filter 31, and the communication hole 70 and the vent hole 80 may be formed on the second side (downstream side) relative to the object 33.

[0317] In addition, if Figure 17 As shown in FIG. 2B , the object 33 may be located on the second side (downstream side) of the filter 31 . The communication hole 70 and the vent hole 80 may be formed on the first side (upstream side) relative to the object 33 located in the second side (downstream side) of the filter 31 .

[0318] It should be noted that the communication hole 70 and the vent hole 80 need only be formed in the region where the filter portion 230 is located and are not limited to Figure 16 and Figure 17 The communication holes 70 and the ventilation holes 80 may be formed in, for example, the region of the single filter 32 , or may be formed in both the region of the filter 31 and the region of the single filter 32 .

[0319] As described above, the filter portion 230 of the flavor inhalation article 7 according to the seventh embodiment includes the filter 31 (which is a paper filter), the separate filter 32 (which is an independent filter separated from the filter 31), and the object 33 different from the filter 31 and disposed inside the filter 31. Furthermore, the ventilation holes 80 are formed at positions corresponding to the filter portion 230 on the tipping paper 40. It should be noted that in the above example, the filter portion 230 of the flavor inhalation article 7 has a dual structure having the filter 31 (which is a paper filter) and the separate filter 32, but is not limited thereto, and two or more types of filters may be present in addition to the filter 31 (which is a paper filter).

[0320] <Eighth Embodiment>

[0321] Figure 18 3 are diagrams showing a longitudinal section of a flavor inhalation article 8 according to an eighth embodiment, wherein (A) shows a state in which an object 33 is positioned on a first side of an aerosol modifier 34, (B) shows a state in which the object 33 is positioned on a second side of the aerosol modifier 34, and (C) shows a state in which the object 33 is positioned on both the first and second sides of the aerosol modifier 34.

[0322] The flavor inhalation article 8 according to the eighth embodiment differs from the flavor inhalation article 6 according to the sixth embodiment in that the mouthpiece segment 850 corresponding to the mouthpiece segment 650 is different. The differences from the sixth embodiment will be described below. In the sixth and eighth embodiments, the same reference numerals are used for the same components, and detailed descriptions are omitted.

[0323] The mouthpiece segment 850 is composed of a filter portion 330. Specifically, the filter portion 330 of the mouthpiece segment 850 includes a filter 31, which is a paper filter; an object 33, which is different from the filter 31; an aerosol modifier 34, which modifies the aerosol; 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.

[0324] The shape and size of the nozzle segment 850 may be exemplified as the same as those of the nozzle segment 650 according to the sixth embodiment. In addition, the shape and size of the filter portion 330 may be appropriately adjusted to fall within the aforementioned range.

[0325] exist Figure 18 In the example shown in (A), the filter portion 330 of the mouthpiece segment 850 has the aerosol modifier 34 positioned on the second side (downstream side) relative to the object 33, and the aerosol modifier 34 is arranged in line with the object 33 in the centerline direction. In addition, the communication hole 70 and the vent hole 80 are formed on the second side (downstream side) relative to the object 33 positioned on the first side (upstream side) within the filter 31, and are formed on the first side (upstream side) relative to the aerosol modifier 34.

[0326] In addition, if Figure 18 As shown in FIG. 2B , the aerosol modifier 34 may be positioned on a first side (upstream side) relative to the object 33, and the aerosol modifier 34 may be arranged in line with the object 33 in the centerline direction. The communication hole 70 and the vent hole 80 may be formed on the first side (upstream side) relative to the object 33 positioned in the region on the second side (downstream side) within the filter 31, and may be formed on the second side (downstream side) relative to the aerosol modifier 34.

[0327] In addition, if Figure 18 As shown in FIG. 3 , the aerosol modifier 34 may be positioned on both the first side (the substrate portion 10 side) and the second side (the downstream side) relative to the objects 33, and the aerosol modifier 34 may be arranged in a straight line with the plurality of objects 33 in the centerline direction. The communication holes 70 and the vent holes 80 may be formed in the region between the objects 33 and the aerosol modifier 34 on the first side (upstream side) within the filter 31, and the vent holes 80 may not be formed in the region between the objects 33 and the aerosol modifier 34 on the second side (downstream side) within the filter 31.

[0328] It should be noted that the communication hole 70 and the vent hole 80 need only be formed in the area where the filter portion 330 is located, and are not limited to Figure 18 The communication holes 70 and the vent holes 80 may be formed in a region different from the region between the object 33 and the aerosol modifier 34 within the region where the filter 31 is located. In addition, the communication holes 70 and the vent holes 80 may be formed in multiple regions within the region where the filter 31 is located.

[0329] As described above, the filter portion 330 of the flavor inhalation article 8 according to the eighth embodiment includes the filter 31, which is a paper filter, the object 33, which is different from the filter 31, and the aerosol modifier 34, which modifies the aerosol. Furthermore, the vents 80 are formed at positions corresponding to the filter portion 330 on the tipping paper 40. By having the aerosol modifier 34 in the filter portion 330, the aerosol generated from the base portion 10 during inhalation can be modified.

[0330] <Overview>

[0331] The present disclosure includes the following configurations.

[0332] (1) A flavor inhalation product comprising: a base portion including an aerosol source; a filter portion through which aerosol generated from the base portion passes; and a tipping paper wrapped around the outsides of the base portion and the filter portion to connect the base portion and the filter portion, wherein the filter portion includes a paper filter and an object other than the paper filter disposed inside the paper filter, and ventilation holes are formed in the tipping paper to allow air to flow from the outside into the interior of the filter portion.

[0333] (2) The flavor inhalation article according to (1), wherein the object is a hollow member having at least one end in the longitudinal direction of the filter portion open.

[0334] (3) The flavor inhalation article according to (2), wherein the object is a hollow member open at both ends in the longitudinal direction of the filter portion.

[0335] (4) The flavor inhalation article according to any one of (1) to (3), wherein the filter portion has a cylindrical member formed in a cylindrical shape between the base portion and the paper filter, and the ventilation hole is formed at a position on the tipping paper corresponding to the paper filter.

[0336] (5) The flavor inhalation article according to (4), wherein a position of the vent hole in the longitudinal direction of the filter portion does not overlap with a position of the object in the longitudinal direction.

[0337] (6) The flavor inhalation article according to (4), wherein a position of the vent hole in the longitudinal direction of the filter portion overlaps with a position of the object in the longitudinal direction.

[0338] (7) The flavor inhalation product according to any one of (1) to (6), wherein a communication hole is formed on the paper filter at a position overlapping with the position of the vent hole in the longitudinal direction of the filter portion, thereby allowing air flowing in from the vent hole to communicate with the gaps in the paper filter.

[0339] (8) The flavor inhalation product according to (7), wherein if the paper filter satisfies a predetermined condition, the communicating holes are made deeper than when the predetermined condition is not satisfied.

[0340] (9) The flavor inhalation article according to any one of (1) to (4), wherein the filter portion has a cylindrical member formed in a cylindrical shape between the base portion and the paper filter, the vent hole is formed at a position on the tipping paper corresponding to the cylindrical member, and a through hole is formed on the cylindrical member to allow air flowing in from the vent hole to flow inside.

[0341] (10) The flavor inhalation product according to any one of (1) to (9), wherein the vent hole is circular with a diameter of 0.3 mm to 2.0 mm, or elliptical with a major axis of 0.5 mm to 3.0 mm and a minor axis of 0.2 mm to 1.5 mm.

[0342] (11) The flavor inhalation product according to any one of (1) to (10), wherein a plurality of ventilation holes are formed on the tipping paper, the plurality of ventilation holes are formed to be arranged along the circumferential direction of the filter portion, and the number of holes is 8 or more and 30 or less.

[0343] (12) The flavor inhalation product according to any one of (1) to (11), wherein when the filter portion is inhaled at 17.5 ml / sec, an air inflow ratio is 40% by volume or more and 60% by volume or less.

[0344] (13) The flavor inhalation product according to any one of (1) to (12), wherein the paper filter is a filter filled with a sheet member.

[0345] (14) The flavor inhalation product according to (13), wherein the paper filter is a filter filled with a sheet member so that gaps are formed across the longitudinal direction of the filter portion.

[0346] This application claims priority based on PCT applications PCT / JP2022 / 47985, PCT / JP2022 / 47988, and PCT / JP2022 / 47989 filed on December 26, 2022, the contents of which are incorporated herein by reference.

[0347] List of Reference Numerals

[0348] 1, 2, 3, 4, 5, 6, 7, 8…flavor inhalation product, 10…base portion, 11…aerosol source, 20, 420…cooling portion, 30, 230, 330, 430…filter portion, 31…filter, 32…separate filter, 33…object, 34…aerosol modifier, 35…wrap paper, 40…tipping paper, 50, 250, 350, 450, 550, 650, 750, 850…mouthpiece segment, 60…through hole, 70…connecting hole, 80, 480…vent hole

Claims

1. A flavor inhalation product comprising: a substrate portion comprising an aerosol source; a filter portion through which the aerosol generated from the substrate portion passes; and tipping paper wrapped around the outsides of the base portion and the filter portion to connect the base portion and the filter portion, wherein the filter portion includes a paper filter and an object other than the paper filter disposed inside the paper filter, and vent holes are formed in the tipping paper to allow air to flow from the outside into the interior of the filter portion.

2. The flavor inhalation product according to claim 1, wherein The object is a hollow member having at least one end in the longitudinal direction of the filter portion open.

3. The flavor inhalation product according to claim 2, wherein The object is a hollow member open at both ends in the longitudinal direction of the filter portion.

4. The flavor inhalation product according to any one of claims 1 to 3, wherein The filter portion has a cylindrical member formed in a cylindrical shape between the base portion and the paper filter, and the ventilation hole is formed at a position on the tipping paper corresponding to the paper filter.

5. The flavor inhalation product according to claim 4, wherein A position of the vent hole in the longitudinal direction of the filter portion does not overlap with a position of the object in the longitudinal direction.

6. The flavor inhalation product according to claim 4, wherein A position of the vent hole in a longitudinal direction of the filter portion overlaps with a position of the object in the longitudinal direction.

7. The flavor inhalation product according to any one of claims 1 to 6, wherein A communication hole is formed on the paper filter at a position overlapping with the position of the vent hole in the longitudinal direction of the filter portion, thereby allowing air flowing in from the vent hole to communicate with the voids of the paper filter.

8. The flavor inhalation product according to claim 7, wherein If the paper filter satisfies a predetermined condition, the communication hole is made deeper than when the predetermined condition is not satisfied.

9. The flavor inhalation product according to any one of claims 1 to 4, wherein The filter portion has a cylindrical member formed in a cylindrical shape between the base portion and the paper filter, the vent hole is formed at a position on the tipping paper corresponding to the cylindrical member, and a through hole is formed on the cylindrical member to allow air flowing in from the vent hole to flow inside.

10. The flavored inhalation product according to any one of claims 1 to 9, wherein The vent hole is circular with a diameter of 0.3 mm to 2.0 mm, or elliptical with a major axis of 0.5 mm to 3.0 mm and a minor axis of 0.2 mm to 1.5 mm.

11. The flavored inhalation product according to any one of claims 1 to 10, wherein A plurality of ventilation holes are formed in the tipping paper, the plurality of ventilation holes being arranged along a circumferential direction of the filter portion, and the number of the holes is 8 or more and 30 or less.

12. The flavored inhalation product according to any one of claims 1 to 11, wherein When the filter portion was inhaled at 17.5 ml / sec, the air inflow ratio was 40% by volume or more and 60% by volume or less.

13. The flavored inhalation product according to any one of claims 1 to 12, wherein The paper filter is a filter filled with a sheet member.

14. The flavored inhalation product according to claim 13, wherein The paper filter is a filter filled with a sheet member so that gaps are formed across the longitudinal direction of the filter portion.

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