WO2023112154A1 - Non-combustion heated stick - Google Patents

Abstract

This non-combustion heated stick comprises: a base material part that contains an aerosol source; a cooling part that produces an aerosol by cooling a vapor produced by heating the base material part; and a mouthpiece through which the aerosol passes. At least one of the cooling part and the mouthpiece contains an ion exchange resin in which a functional group has been bonded to an organic polymer.

Description

Non-combustion heating stick

The present invention relates to non-combustion heating sticks.

Patent Document 1 discloses a smoking article that includes a rod of smoking material and a filter that includes a plurality of filter sections and is attached to one end of the rod of smoking material. Further, in US Pat. No. 5,300,001, at least one filter section in a filter of a smoking article may contain an ion exchange resin to remove taste-impairing constituents contained in mainstream smoke produced by a rod of smoking material that has been ignited. Good things are disclosed.

JP 2017-18116 A

Non-combustion heating sticks, which generate aerosols by heating a base material containing an aerosol source, have a lower heating temperature for the base material than combustible cigarettes, so the effects of flavor-impairing substances such as aldehydes are limited. has not been considered. However, when the heating temperature is low, it is difficult to reproduce the tobacco-like flavor and taste, and it has become necessary to raise the heating temperature in order to increase the user's satisfaction with the smoking taste.
An object of the present invention is to remove components such as aldehydes that impede smoking taste while maintaining user's satisfaction with smoking taste in a non-combustion heating stick.

The first feature of the present invention completed for this purpose is a base member including an aerosol source, and a cooling unit that cools vapor generated by heating the base member to generate aerosol. and a mouthpiece portion through which the aerosol passes, wherein at least one of the cooling portion and the mouthpiece portion is a non-combustion heating stick containing an ion exchange resin in which a functional group is bonded to an organic polymer. .
A second feature may be that the ion exchange resin is one or more resins selected from chelate resins, weakly basic anion exchange resins or weakly acidic cation exchange resins.
A third feature may be that the ion exchange resin contains at least one of an amine, an amino group and a carboxyl group as the functional group.
A fourth feature is that the ion exchange resin contains at least one of polystyrene, styrene-divinylbenzene copolymer, polymethacrylic acid, polyacrylic acid, and polyacrylic acid amide as the organic polymer. good too.
A fifth feature may be that the ion exchange resin includes a porous ion exchange resin.
A sixth feature may be that the ion exchange resin has a granular shape with an average particle size of 20 μm or more and 1200 μm or less.
A seventh feature may be that the ion exchange resin has a BET specific surface area of 10 m ² /g or more and 1200 m ² /g or less.
An eighth feature may be that the ion exchange resin has an apparent density of 0.1 g/cm ³ or more and 1.2 g/cm ³ or less.
A ninth feature may be that the ion exchange resin has a total exchange capacity of 0.5 meq/cm ³ or more and 20 meq/cm ³ or less.
A tenth feature may be that at least one of the cooling section and the mouthpiece section further includes another additive compounded with the ion exchange resin.
The eleventh feature may be that the ion exchange resin is present in one or more of the following 1) to 5).
1) inside the filter of the mouthpiece part 2) inside the paper layer of the roll paper on which the filter is wound or on the surface facing the filter 3) inside the hollow part of the mouthpiece part 4) the surface facing the hollow part 5) the filter has a plurality of segments, and in the cavity formed between the segments

According to the first feature, it is possible to provide a non-combustion heating stick from which smoking taste-inhibiting components such as aldehydes are preferentially removed while maintaining the user's satisfaction with smoking.
According to the second feature, compared with the case of using an ion exchange resin other than a chelate resin, a weakly basic anion exchange resin, or a weakly acidic cation exchange resin, aldehydes among smoking taste inhibiting components are selectively reduced. It is possible to provide a non-combustion heated stick that can be used.
According to the third feature, there is provided a non-combustion heating stick that can selectively reduce aldehydes among smoking taste-inhibiting components, compared to the case where the ion exchange resin does not contain any of amine, amino group and carboxyl group. can do.
According to the fourth feature, compared to the case where the ion exchange resin does not contain any of polystyrene, styrene-divinylbenzene copolymer, polymethacrylic acid, polyacrylic acid, and polyacrylic acid amide as organic polymers, It is possible to provide a non-combustion heating stick in which smoking taste inhibitory components such as aldehydes can be selectively reduced.
According to the fifth feature, it is possible to provide a non-combustion heating stick that can selectively reduce smoking taste-inhibiting components such as aldehydes, as compared with the case where the ion exchange resin does not contain a porous ion exchange resin. .
According to the sixth feature, there is provided a non-combustion heating stick that can selectively reduce smoking taste-inhibiting components such as aldehydes, compared to the case where the average particle size of the ion exchange resin is outside the range of 20 μm or more and 1200 μm or less. can do.
According to the seventh feature, compared to the case where the BET specific surface area of the ion exchange resin is out of the range of 10 m ² /g or more and 1200 m ² /g or less, the smoking taste inhibitory components such as aldehydes can be selectively reduced. Combustion heated sticks can be provided.
According to the eighth feature, compared to the case where the apparent density of the ion exchange resin is outside the range of 0.1 g/cm ³ or more and 1.2 g/cm ³ or less, smoking taste inhibitory components such as aldehydes are selectively reduced. It is possible to provide a non-combustion heated stick that can be used.
According to the ninth feature, compared to the case where the total exchange capacity of the ion exchange resin is outside the range of 0.5 meq/cm ³ or more and 20 meq/cm ³ or less, smoking taste inhibitory components such as aldehydes are selectively reduced. It is possible to provide a non-combustion heated stick that can be used.
According to the tenth feature, it is possible to provide a non-combustion heating stick in which smoking taste-inhibiting components such as aldehydes can be selectively reduced compared to the case where other additives are not included.
According to the eleventh feature, compared to the case where no ion exchange resin is contained in any of 1) to 5), non-combustion heating sticks that can selectively reduce smoking taste inhibitory components such as aldehydes can be provided.

1 is a view showing a longitudinal section of a non-combustion heating stick according to a first embodiment; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows typically the structural example of the suction device which concerns on 1st Embodiment. FIG. 5 is a schematic diagram showing a vertical cross section of a mouthpiece portion of a non-combustion heating stick according to another embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In each drawing, the same parts are indicated by the same reference numerals.

<Non-combustion heating stick>
FIG. 1 is a view showing a longitudinal section of a non-combustion heating stick 1 according to the first embodiment. FIG. 2 is a schematic diagram schematically showing a configuration example of the suction device 100 according to the first embodiment.
A non-combustion heating stick (hereinafter sometimes referred to as “stick”) 1 according to the first embodiment includes a base portion 10 , a cooling portion 20 and a mouthpiece portion 30 . The base material portion 10 is formed in a cylindrical shape. Hereinafter, the direction of the centerline CL of the base member 10 may be referred to as the "centerline direction". The stick 1 further includes tip paper 40 that integrates the base material portion 10, the cooling portion 20, and the mouthpiece portion 30 by winding them in order in the direction of the center line. Hereinafter, one end side in the centerline direction (left side in FIG. 1) may be referred to as a first side, and the other end side in the centerline direction (right side in FIG. 1) may be referred to as a second side. The first side is the end side that is inserted into the suction device 100 . The second side is opposite to the first side and is the end side that the user holds in his/her mouth for suction. A cross section along the centerline direction is called a "longitudinal cross section", and a cross section taken along a plane perpendicular to the centerline direction is defined as a "transverse cross section".

[Usage pattern of stick 1]
The stick 1 according to the first embodiment is used in a non-combustion heating suction device 100 . As shown in FIG. 2, the suction device 100 includes a power supply unit 111 that accumulates power and supplies power to each component of the suction device 100, a sensor unit 112 that detects various information about the suction device 100, an information and a notification unit 113 for notifying the user of. The suction device 100 also includes a storage unit 114 for storing various information for the operation of the suction device 100, a communication unit 115 for transmitting and receiving information between the suction device 100 and other devices, and the suction device 100. and a control unit 116 for controlling overall internal operations. The suction device 100 also includes a heating unit 121 that heats the stick 1, a holding unit 140 that holds the stick 1, an opening 142 that communicates the internal space 141 with the outside, and other components of the suction device 100 from the heating unit 121. and a heat insulator 144 that prevents heat transfer to the element. In the suction device 100 , the user performs suction while the stick 1 is held by the holding portion 140 .

The heating part 121 heats the base material part 10 of the stick 1 . The heating part 121 is made of any material such as metal or polyimide. For example, the heating part 121 is configured in a film shape and arranged so as to cover the outer periphery of the holding part 140 . Then, when the heating part 121 generates heat, the aerosol source 11 (not shown in FIG. 2) included in the stick 1 is heated from the outer circumference of the stick 1 . The heating unit 121 generates heat when supplied with power from the power supply unit 111 . As an example, power may be supplied when the sensor unit 112 detects that a predetermined user input has been performed. When the temperature of the stick 1 heated by the heating unit 121 reaches a predetermined temperature, the user can suck. After that, when the sensor unit 112 detects that a predetermined user input has been performed, the power supply may be stopped. As an example of another usage pattern, power may be supplied and aerosol may be generated during a period in which the sensor unit 112 detects that the user has inhaled.

The heat insulation part 144 is arranged so as to cover at least the outer periphery of the heating part 121 . For example, the heat insulating part 144 is made of a vacuum heat insulating material, an airgel heat insulating material, or the like. A vacuum insulation material is, for example, a heat insulation material in which heat conduction due to gas is nearly zero by wrapping glass wool and silica (powder of silicon) in a resin film to create a high vacuum state. be.

[Base material portion 10]
The base member 10 has an aerosol source 11 that generates vapor from which an aerosol is generated when heated, and a wrapping paper 12 that covers the outer periphery of the aerosol source 11 . Substrate portion 10 of FIG. 1 is an example of a substrate portion that includes an aerosol source. The base material part 10 is formed in a cylindrical shape by winding the aerosol source 11 around the wrapping paper 12 . The aerosol source 11 may be tobacco-derived, such as, for example, tobacco cuts or tobacco raw materials molded into granules, sheets, or powder. The aerosol source 11 may also include non-tobacco sources made from plants other than tobacco (eg, mints, herbs, etc.). As an example, the aerosol source 11 may contain a perfume ingredient such as menthol. If the inhalation device 100 is a medical inhaler, the aerosol source 11 may contain a medicament for inhalation by the patient. The aerosol source 11 is not limited to solids, and may be polyhydric alcohols such as glycerin and propylene glycol, and liquids such as water. At least part of the base material part 10 is housed in the internal space 141 of the holding part 140 while the stick 1 is held by the holding part 140 shown in FIG.

The base material portion 10 formed by wrapping the aerosol source 11 with the wrapping paper 12 preferably has a columnar shape that satisfies a shape with an aspect ratio defined by Equation 1 of 1 or more.

In Equation 1, w is the width of the cross section of the base member 10, h is the size of the base member 10 in the direction of the center line, and h≧w is preferred. The shape of the cross section is not limited, and may be a polygon, a polygon with rounded corners, a circle, an ellipse, or the like. is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. It is preferable that the width of the aerosol source 11 constituting the base material portion 10 is 4 mm or more and 9 mm or less.

The size of the base material portion 10 in the center line direction can be appropriately changed according to the size of the product, but is usually 10 mm or more, preferably 12 mm or more, more preferably 15 mm or more, and 18 mm or more. is more preferable. The size of the base material portion 10 in the center line direction is usually 70 mm or less, preferably 50 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less.
In addition, in the center line direction, the ratio of the size of the base material part 10 to the size of the stick 1 is not particularly limited, but from the viewpoint of the balance between the delivery amount and the aerosol temperature, it is usually 10% or more, and 20% or more. is preferably 25% or more, and even more preferably 30% or more. In addition, the ratio of the size of the base material portion 10 to the size of the stick 1 is usually 80% or less, preferably 70% or less, more preferably 60% or less, and 50% or less. is more preferable, 45% or less is particularly preferable, and 40% or less is most preferable.

The content of the aerosol source 11 in the base material portion 10 is not particularly limited, but may be 200 mg or more and 800 mg or less, preferably 250 mg or more and 600 mg or less. This range is particularly suitable for the base member 10 with a circumference of 22 mm and a size of 20 mm in the centerline direction.

An aerosol source 11 containing tobacco cuts will now be described. The cut tobacco material contained in the aerosol source 11 is not particularly limited, and known materials such as lamina and backbone 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 obtain pulverized tobacco, which is homogenized and processed into a sheet (hereinafter also simply referred to as “homogenized sheet”). may be engraved. Furthermore, a homogenizing sheet having a size approximately equal to the size in the center line direction of the base material part 10 is chopped substantially horizontally with the center line direction of the base material part 10, and the aerosol source 11 is filled with the so-called strand. can be a type.
Moreover, the width of the chopped tobacco is preferably 0.5 mm or more and 2.0 mm or less for filling the aerosol source 11 .

Various kinds of tobacco can be used for the tobacco leaves used for producing the cut tobacco and the homogenized sheet. Examples include yellow, burley, oriental, landrace, other Nicotiana-tabacum varieties, Nicotiana-Rustica varieties, and mixtures thereof. As for the mixture, each kind can be appropriately blended and used so as to obtain the desired taste. Details of tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Research Center, March 31, 2009". There are a number of conventional methods for producing homogenized sheets, that is, methods for pulverizing tobacco leaves and processing them into homogenized sheets. The first is a method of producing a papermaking sheet using a papermaking process. The second method is to mix pulverized tobacco leaves with an appropriate solvent such as water to homogenize the mixture, and then thinly cast the homogenized product on a metal plate or metal plate belt and dry it to produce a cast sheet. is. A third method is to prepare a rolled sheet by mixing a suitable solvent such as water with pulverized tobacco leaves, homogenizing the mixture, and extruding the mixture into a sheet. Details of the types of homogenizing sheets are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009".

The water content of the aerosol source 11 can 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 water content suppresses the occurrence of winding stains and improves the winding suitability of the base material portion 10 during manufacturing.

The aerosol source 11 is not particularly limited, and may contain extracts from various natural products and/or constituents thereof, depending on the application. Extractable substances and/or constituents thereof may include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
The content of the extracting substance and/or its constituent components in the aerosol source 11 is not particularly limited, and from the viewpoint of sufficiently generating an aerosol and imparting a good flavor, it is usually It is 5% by mass or more, preferably 10% by mass or more. In addition, the content of the extractable substance and/or its constituent components in the aerosol source 11 is usually 50% by mass or less, preferably 15% by mass or more and 25% by mass or less.

The aerosol source 11 may contain perfume. The type of fragrance is not particularly limited, and menthol is particularly preferable from the viewpoint of imparting a good flavor. Moreover, these fragrance|flavors may be used individually by 1 type, or may use 2 or more types together.

The packing density of the aerosol source 11 is not particularly limited, but is usually 250 mg/cm ³ or more, preferably 300 mg/cm ³ or more, from the viewpoint of securing the performance of the stick 1 and imparting good flavor. Also, the packing density in the aerosol source 11 is usually 400 mg/cm ³ or less, preferably 350 mg/cm ³ or less.

The aerosol source 11 may also consist of tobacco sheets. The number of tobacco sheets may be one, or two or more.
In the case where the aerosol source 11 is composed of one tobacco sheet, for example, a tobacco sheet having one side of a size approximately equal to the size in the center line direction of the object to be filled is used as the object to be filled. A mode (so-called gathered sheet) in which the sheet is filled in a state in which the sheet is folded back multiple times horizontally with respect to the center line direction of the sheet is exemplified. In addition, there is also a mode in which a tobacco sheet having one side of which is approximately the same size as the centerline direction of the object to be filled is wound in a direction orthogonal to the centerline direction of the object to be filled. mentioned.

As a mode in which the aerosol source 11 is composed of two or more tobacco sheets, for example, a plurality of tobacco sheets each having a size approximately equal to the size in the center line direction of the object to be filled, A mode in which the material is wound in a direction orthogonal to the center line direction of the material to be filled so as to be arranged concentrically is exemplified.
"Concentrically arranged" means that the centers of all the tobacco sheets are arranged at approximately the same position. In addition, the number of tobacco sheets is not particularly limited, but may be 2, 3, 4, 5, 6, or 7 sheets.
Two or more tobacco sheets may all have the same composition or physical properties, or a part or all of each tobacco sheet may have different compositions or physical properties. Moreover, the thickness of each tobacco sheet may be the same or different.
The thickness of each tobacco sheet is not limited, but is preferably 150 μm or more and 1000 μm or less, more preferably 200 μm or more and 600 μm or less, in terms of balance between heat transfer efficiency and strength.

The aerosol source 11 prepares a plurality of tobacco sheets having different widths, prepares a laminated body in which the width decreases from the first side to the second side, passes the laminated body through a winding tube, and winds and forms the laminated body. It can be manufactured by
According to this manufacturing method, the plurality of tobacco sheets extend in the centerline direction and are arranged concentrically around the centerline CL.
In this manufacturing method, the laminate is preferably prepared so that a non-contact portion is formed between adjacent tobacco sheets after roll-forming. If there is a non-contact portion (gap) between the plurality of tobacco sheets, which is not in contact with the tobacco sheets, the flavor flow path can be secured and the delivery efficiency of the flavor component can be enhanced. On the other hand, since the heat from the heater can be transferred to the outer tobacco sheets through the contact portions of the plurality of tobacco sheets, high heat transfer efficiency can be ensured.
In order to provide a non-contact portion between a plurality of tobacco sheets where the tobacco sheets do not contact, for example, an embossed tobacco sheet is used, adjacent tobacco sheets are laminated without bonding the entire surfaces of adjacent tobacco sheets, and adjacent tobacco sheets are stacked together. Alternatively, the entire or part of the adjacent tobacco sheets are lightly adhered so that they can be separated after roll-forming, thereby preparing a laminate.
When the base material portion 10 including the wrapping paper 12 is prepared, the wrapping paper 12 may be arranged on the end surface of the first side of the laminate.

Polyols such as glycerin, propylene glycol, and 1,3-butanediol may be added to tobacco sheets. The amount added to the tobacco sheet is preferably 5% by mass or more and 50% by mass or less, more preferably 15% by mass or more and 25% by mass or less, relative to the dry mass of the tobacco sheet.

Tobacco sheets can be appropriately manufactured by known methods such as paper making, slurrying, and rolling. Note that the uniformizing sheet described above can also be used.
In the case of papermaking, it can be manufactured by a method including the following steps. 1) Dry tobacco leaves are crushed and extracted with water to separate the water extract and residue. 2) Dry and concentrate the water extract under reduced pressure. 3) Pulp is added to the residue, fiberized with a refiner, and then paper is made. 4) A concentrated solution of the water extract is added to the paper sheet and dried to obtain a tobacco sheet. In this case, a step of removing some components such as nitrosamines may be added (see JP-T-2004-510422).
In the case of the slurry method, it can be produced by a method including the following steps. 1) Mix crushed tobacco leaves with water, pulp and binder. 2) The mixture is spread (cast) and dried. In this case, a step of removing some components such as nitrosamines by irradiating a slurry obtained by mixing water, pulp and binder with crushed tobacco leaves with ultraviolet rays or X-rays may be added.

In addition, as described in WO 2014/104078, a non-woven tobacco sheet manufactured by a method including the following steps can also be used. 1) Mix powdered tobacco leaves and a binder. 2) The mixture is sandwiched between non-woven fabrics. 3) Forming the laminate into a certain shape by heat welding to obtain a non-woven tobacco sheet.
The types of raw material tobacco leaves used in each of the above methods may be the same as those described for the aerosol source 11 containing cut tobacco.
Although the composition of the tobacco sheet is not particularly limited, for example, the content of the tobacco raw materials (tobacco leaves) is preferably 50% by mass or more and 95% by mass or less with respect to the total mass of the tobacco sheet. The tobacco sheet may also contain a binder, and examples of such binders include guar gum, xanthan gum, carboxymethylcellulose, sodium salts of carboxymethylcellulose, and the like. The amount of the binder is preferably 1% by mass or more and 10% by mass or less with respect to the total mass of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of additives include fillers such as pulp.

The structure of the wrapping paper 12 used for the base material portion 10 is not particularly limited, and can be a general form, for example, one containing pulp as a main component. As pulp, in addition to wood pulp such as softwood pulp and hardwood pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and esparto, which are generally used for wrapping paper 12 for tobacco products, can be used. It may be obtained by mixing and manufacturing.
The types of pulp that can be used include chemical pulp, ground pulp, chemi-grand pulp, thermomechanical pulp, and the like prepared by kraft cooking, acid/neutral/alkaline sulfite cooking, soda salt cooking, and the like.

Using the pulp, the winding paper 12 is manufactured by preparing and uniforming the texture in the papermaking process using a fourdrinier paper machine, a cylinder paper machine, a circular and short composite paper machine, and the like. If necessary, a wet strength agent may be added to impart water resistance to the wrapping paper 12, or a sizing agent may be added to adjust the printing condition of the wrapping paper 12. Furthermore, aluminum sulfate, various anionic, cationic, nonionic or amphoteric retention improvers, drainage improvers, papermaking internal additives such as paper strength agents, and dyes, pH adjusters, Papermaking additives such as antifoam agents, pitch control agents, and slime control agents can be added.

The basis weight of the base paper for the wrapping paper 12 is, for example, 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, more preferably 45 gsm or less.
The thickness of the wrapping paper 12 is not particularly limited, and is usually 10 μm or more, preferably 20 μm or more, more preferably 30 μm or more, from the viewpoints of rigidity, air permeability, and ease of adjustment during paper production. The thickness of the wrapping paper 12 is usually 100 μm or less, preferably 75 μm or less, more preferably 50 μm or less.
The shape of the wrapping paper 12 for producing the base material part 10 can be square or rectangular.
When the aerosol source 11 is used as the wrapping paper 12, the length of one side can be about 12 mm or more and 70 mm or less. , and a more preferable length is about 23 mm. When the aerosol source 11 is wound with the wrapping paper 12 in a cylindrical shape, for example, in the circumferential direction, the end of the wrapping paper 12 and the end of the wrapping paper 12 on the opposite side are overlapped by about 2 mm and glued to form a cylindrical paper. It has the shape of a tube in which the aerosol source 11 is filled. The size of the rectangular wrapping paper 12 can be determined by the size of the base material portion 10 .

In addition to the pulp described above, the paper wrapper 12 may also contain fillers. The content of the filler can be 10% by mass or more and less than 60% by mass, preferably 15% by mass or more and 45% by mass or less, based on the total mass of the wrapping paper 12 .
In the wrapping paper 12, the filler content is preferably 15% by mass or more and 45% by mass or less in a preferable basis weight range (25 gsm or more and 45 gsm or less).
Further, when the basis weight is 25 gsm or more and 35 gsm or less, the filler content is preferably 15 mass % or more and 45 mass % or less, and when the basis weight is 35 gsm or more and 45 gsm or less, the filler content is 25 mass % or more and 45 mass % or less. is preferred.
As a filler, calcium carbonate, titanium dioxide, kaolin, and the like can be used, but from the viewpoint of enhancing flavor and whiteness, it is preferable to use calcium carbonate.

Various auxiliary agents other than base paper and fillers may be added to the wrapping paper 12. For example, a water resistance improver may be added to improve water resistance. Water resistance improvers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), and the like. Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a degree of saponification of 90% or more.
As an auxiliary agent, a paper strength agent may be added, and examples thereof include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, and the like. In particular, it is known that the use of an extremely small amount of oxidized starch improves air permeability (Japanese Patent Application Laid-Open No. 2017-218699).

A coating agent may be added to at least one of the front and back sides of the wrapping paper 12 . The coating agent is not particularly limited, but a coating agent capable of forming a film on the paper surface and reducing liquid permeability is preferred. For example, alginic acid and its salts (e.g. sodium salts), polysaccharides such as pectin, cellulose derivatives such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, nitrocellulose, starch and derivatives thereof (e.g. carboxymethyl starch, hydroxyalkyl starch and cationic starch). and ether derivatives such as starch acetate, starch phosphate and ester derivatives such as starch octenylsuccinate).

[Cooling part 20]
The cooling part 20 is arranged adjacent to the base material part 10 and the mouthpiece part 30, and is a member formed so that the cross section of a cylinder or the like becomes hollow (cavity) by winding the forming paper 21. .

The size of the cooling part 20 in the centerline direction can be appropriately changed according to the size of the product, but it is usually 5 mm or more, preferably 10 mm or more, and more preferably 15 mm or more. Also, the size of the cooling part 20 in the center line direction is usually 35 mm or less, preferably 30 mm or less, and more preferably 25 mm or less. By setting the size of the cooling unit 20 in the center line direction to the above-described lower limit or more, it is possible to secure a sufficient cooling effect and obtain a good flavor. It is possible to suppress the loss caused by the aerosol adhering to the forming paper 21 .

The cooling part 20 preferably has a large inner surface area. The forming paper 21 forming the cooling section 20 may be formed by a thin sheet of material that is crumpled to form channels and then pleated, gathered and folded. The more folds or folds in a given volume of the element, the greater the total surface area of cooling section 20 .
The thickness of the molding paper 21 is not particularly limited, and may be, for example, 5 μm or more and 500 μm or less, or 10 μm or more and 250 μm or less. The material of the molding paper 21 is not particularly limited. For example, pulp may be the main component, and polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil may be used. may be the main component, or any combination thereof.

The cooling part 20 is provided with openings V (also called "ventilation filter (Vf)" in this technical field) concentrically and circumferentially. The opening V exists in a region where air can flow from the outside of the stick 1 , in other words, in a region where the stick 1 is held by the holding portion 140 of the suction device 100 and protrudes from the opening 142 .

The existence of the openings V allows air to flow into the interior of the cooling section 20 from the outside during suction, and the temperature of steam or air flowing in from the base material section 10 can be lowered. Furthermore, by setting the position where the opening V is provided in the cooling part 20 within a region of 4 mm or more in the direction of the cooling part 20 side from the boundary between the cooling part 20 and the mouthpiece part 30, the cooling capacity can be improved only by Therefore, it is possible to suppress the retention of the substance (product) generated by heating in the cooling unit 20 and improve the delivery amount of the product.
It should be noted that the vapor generated from the aerosol as the condensation nucleus by heating the base material portion 10 can be liquefied by contacting the air from the outside and the temperature is lowered, and the generation of the aerosol can be accelerated. . The cooling unit 20 is an example of a cooling unit that cools vapor generated by heating the base material unit 10 to generate an aerosol.

In the cooling unit 20, when the concentric holes V are treated as one hole group, the number of hole groups may be one, or two or more. When there are two or more hole groups, from the viewpoint of improving the delivery amount of the component generated by heating, from the boundary between the cooling section 20 and the mouthpiece section 30, in a region of less than 4 mm in the direction of the cooling section 20 side It is preferable not to provide an aperture group.
In addition, when the stick 1 has a configuration in which the base material portion 10 , the cooling portion 20 and the mouthpiece portion 30 are wrapped with the tip paper 40 , the tip paper 40 has the openings V provided in the cooling portion 20 . It is preferable that an opening be provided at a position directly above the . When such a stick 1 is produced, tipping paper 40 provided with openings overlapping with the openings V may be prepared and wound. It is preferable to drill a hole through the cooling part 20 and the tipping paper 40 at the same time after making the stick 1 without the stick 1 .

From the viewpoint of improving product delivery by heating, the region where the opening V exists is not particularly limited as long as it is a region of 4 mm or more in the direction of the cooling section 20 from the boundary between the cooling section 20 and the mouthpiece section 30. However, from the viewpoint of further improving product delivery, the area is preferably 4.5 mm or more, more preferably 5 mm or more, and even more preferably 5.5 mm or more. In addition, from the viewpoint of ensuring the cooling function, the region where the opening V exists is preferably a region of 15 mm or less, more preferably a region of 10 mm or less, and further preferably a region of 7 mm or less. .

From the viewpoint of improving the delivery of the product by heating, the region where the opening V exists is preferably a region of 24 mm or more in the direction from the end surface of the first side of the stick 1 to the cooling part 20 side, and 24.5 mm The area is preferably 25 mm or more, more preferably 25.5 mm or more. In addition, from the viewpoint of ensuring the cooling function, the region where the opening V exists is preferably a region of 35 mm or less, more preferably a region of 30 mm or less, and even more preferably a region of 27 mm or less. .

In addition, considering the boundary between the cooling part 20 and the base material part 10 as a reference, if the size of the cooling part 20 in the center line direction is 20 mm or more, the area where the opening V exists will ensure the cooling function. From the point of view, from the boundary between the cooling part 20 and the base material part 10, the area is preferably 5 mm or more in the direction of the cooling part 20 side, more preferably 10 mm or more, and 13 mm or more. is more preferred. In addition, from the viewpoint of improving the delivery of the product by heating, the region where the opening V exists is a region of 16 mm or less in the direction of the cooling part 20 from the boundary between the cooling part 20 and the base material part 10. is preferably 15.5 mm or less, more preferably 15.5 mm or less, and particularly preferably 14.5 mm or less.

The apertures V are provided so that the ratio of air inflow through the apertures V is 10% by volume or more and 90% by volume or less when sucked at 17.5 ml/sec by an automatic smoking machine. This "air inflow ratio" is the volume ratio of the air that has flowed in from the opening V when the ratio of the air sucked from the mouth end is 100% by volume. The air inflow ratio is preferably 50% by volume or more and 80% by volume or less, more preferably 55% by volume or more and 75% by volume or less. For these air inflow ratios, for example, the number of holes V per hole group is selected from a range of 5 to 50, and the diameter of the holes V is set to a range of 0.1 mm to 0.5 mm. can be selected from and achieved by a combination of these selections.
The air inflow ratio can be measured by a method conforming to ISO9512 using an automatic smoking machine (for example, a single bottle automatic smoking machine manufactured by Borgwaldt).

[Chip paper 40]
The configuration of the tipping paper 40 is not particularly limited, and can be in a general form, and for example, can include pulp as a main component. As for the pulp, in addition to being made from wood pulp such as softwood pulp and hardwood pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and esparto, which are generally used for cigarette paper, are mixed. and obtained by manufacturing. These pulps may be used alone or in combination of multiple types at any ratio.
Also, the tipping paper 40 may be composed of one sheet, or may be composed of a plurality of sheets or more.
As the form of pulp, chemical pulp, ground pulp, chemi-grand pulp, thermomechanical pulp, etc. prepared by kraft cooking method, acid/neutral/alkaline sulfite cooking method, soda salt cooking method or the like can be used.
Note that the tip paper 40 may be manufactured by a manufacturing method to be described later, or may be a commercially available product.
The shape of the tipping paper 40 is not particularly limited, and can be square or rectangular, for example.

The basis weight of the tipping paper 40 is not particularly limited, but is usually 32 gsm to 60 gsm, preferably 33 gsm to 55 gsm, more preferably 34 gsm to 53 gsm.
Although the air permeability of the tipping paper 40 is not particularly limited, it is generally 0 Coresta unit or more and 30000 Coresta unit or less, and preferably more than 0 Coresta unit and 10000 Coresta unit or less. Air permeability is a value measured in accordance with ISO 2965:2009, and is expressed as the flow rate (cm ³ ) of gas passing through an area of 1 cm ² per minute when the pressure difference between both sides of the paper is 1 kPa. be done. One Coresta unit (1 Coresta unit, 1 CU) is cm ³ /(min·cm ² ) under 1 kPa.

The chipping paper 40 may contain fillers other than the above pulp, for example, metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide and aluminum oxide, barium sulfate, metal sulfates such as calcium sulfate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum, etc.; preferably contains These fillers may be used singly or in combination of two or more.

In addition to the above pulp and filler, the chipping paper 40 may contain various auxiliary agents, for example, a water resistance improver to improve water resistance. Water resistance improvers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), and the like. Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a degree of saponification of 90% or more.

A coating agent may be added to at least one of the front and back sides of the tip paper 40 . The coating agent is not particularly limited, but a coating agent capable of forming a film on the paper surface and reducing liquid permeability is preferred.
A portion of the outer surface of tipping paper 40 may be covered with a rip release material. The lip release material is a material that assists the user to release the contact between the lips and the tipping paper 40 easily without substantially sticking when the mouthpiece portion 30 of the stick 1 is held in the mouth. means the material of which it is composed. Lip release materials may include, for example, ethyl cellulose, methyl cellulose, and the like. For example, the outer surface of the tipping paper 40 may be coated with a rip release material by applying an ethylcellulose-based or methylcellulose-based ink to the outer surface of the tipping paper 40 .

[Mouthpiece section 30]
The mouthpiece section 30 is connected to the second side of the cooling section 20 via tipping paper 40 . The tip paper 40 connects (joins) the second end of the cooling section 20 and the first end of the mouthpiece section 30 by winding them together.

Mouthpiece section 30 has filter 31 as a main component.
The filter 31 is not particularly limited as long as it has general filter functions. General functions of filters include, for example, adjusting the amount of air mixed when inhaling aerosols, etc., reducing flavor, reducing nicotine and tar, etc., but having all of these functions is not possible. don't need it. In addition, in the non-combustion heating stick 1, which tends to produce fewer components and a lower filling rate of the aerosol source 11 than cigarette products, the aerosol source 11 falls off while suppressing the filtering function. It is also one of the important functions to prevent The filter 31 usually has a filter material, and the filter material is, for example, formed into a columnar shape using a filler such as cellulose acetate fiber, acetate fiber, charcoal fiber, non-woven fabric, or pulp paper as a filter material. Moreover, the aspect using the paper filter filled with the sheet-like pulp paper may be sufficient.
Although the density of the filter material is not particularly limited, it is usually 0.10 g/cm ³ or more and 0.25 g/cm 3 or less, preferably 0.11 g/cm ^{3 or} more and 0.24 g/cm ³ or less. More preferably, it is 0.23 g/cm ³ or more and 0.23 g/cm ³ or less.

It should be noted that filter 31 may comprise a crushable additive release container (eg, capsule) with a crushable outer shell such as gelatin. The form of the additive release container such as a capsule is not particularly limited, and known forms may be employed. In the case of a capsule, when broken by the user before, during or after use, it releases the liquid or substance contained within the capsule (usually a flavoring agent), which then releases the stick 1 is transmitted to the aerosol during use.
The shape of the capsule is not particularly limited, and may be, for example, an easily breakable capsule, preferably spherical. The additive contained in the capsule may contain any additive, but it is particularly preferable to contain a flavoring agent and activated carbon. Additionally, one or more materials may be added as additives to help filter the aerosol. Although the form of the additive is not particularly limited, it is usually liquid or solid. Incidentally, easily breakable capsules and methods for producing the same may be well-known ones.
Flavoring agents may be, for example, menthol, spearmint, peppermint, fenugreek, cloves, medium-chain triglycerides (MCT), etc., and one or a combination thereof may be used.

In addition, the filter further contains other components such as inorganic fine powder (kaolin, talc, diatomaceous earth, quartz, calcium carbonate, barium sulfate, titanium oxide, alumina, etc.), heat stabilizer (alkali or alkaline earth metal salts, etc.), coloring agents, whiteness improvers, oils, yield improvers, sizing agents, biodegradation or photodegradation accelerators (anatase type titanium oxide, etc.), natural polymers or their derivatives (cellulose powder, etc.), etc. You can stay. Other components can be used individually or in combination of 2 or more types.
4. The cross section of the filter 31 of the mouthpiece 30 is substantially circular, and the diameter of the circle can be changed according to the size of the product. It is preferably 5 mm or more and 8.5 mm or less, and more preferably 5.0 mm or more and 8.0 mm or less. If the cross section is not circular, the above diameter is assumed to be a circle having the same area as that of the cross section, and the diameter of that circle is applied.

The length of the perimeter of the cross section of the filter 31 can be appropriately changed according to the size of the product, but it is usually 14.0 mm or more and 27.0 mm or less, preferably 15.0 mm or more and 26.0 mm or less. It is more preferably 16.0 mm or more and 25.0 mm or less.
The size of the mouthpiece portion 30 in the center line direction can be appropriately changed according to the size of the product. It is more preferable that the distance is greater than or equal to 25.0 mm or less. The shape and dimensions of the filter 31 and other structures included in the mouthpiece 30 can be appropriately adjusted so that the shape and dimensions of the mouthpiece 30 fall within the above ranges.

The ventilation resistance per 120 mm of the size of the mouthpiece part 30 in the center line direction is not particularly limited, but is usually 40 mmH ₂ O or more and 300 mmH ₂ O or less, and preferably 70 mmH ₂ O or more and 280 mmH ₂ O or less. , 90 mmH ₂ O or more and 260 mmH ₂ O or less.
The airflow resistance is measured according to the ISO standard method (ISO6565) using, for example, a Cerulean filter airflow resistance meter. The ventilation resistance of the mouthpiece portion 30 is measured when air is flowed from the first side to the second side at a predetermined air flow rate (17.5 cc/min) in a state in which air does not pass through the side surfaces of the mouthpiece portion 30. refers to the pressure difference between the first and second sides of Units are generally expressed in _mmH2O .

From the viewpoint of improving the strength and structural rigidity, it is preferable that the mouthpiece portion 30 includes a winding paper 32 around which the filter 31 and the like are wound. The form of the web 32 is not particularly limited, and may have one or more rows of adhesive-containing seams. The adhesive may comprise a hot melt adhesive, and the hot melt adhesive may comprise polyvinyl alcohol. Moreover, when the filter segment consists of two or more segments, the paper roll is preferably wound by combining these two or more segments.
The material of the paper roll 32 is not particularly limited, and known materials can be used, and it may contain a filler such as calcium carbonate.
The thickness of the paper roll 32 is not particularly limited, and is usually 20 μm or more and 140 μm or less, preferably 30 μm or more and 130 μm or less, and more preferably 30 μm or more and 120 μm or less.
The basis weight of the paper roll 32 is not particularly limited, and is usually 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.
The web 32 may or may not be coated, but is preferably coated with a desired material from the viewpoint of imparting functions other than strength and structural rigidity.

Mouthpiece portion 30 may further include a center hole portion having one or more hollow portions.
FIG. 3(a) shows a diagram including a center hole portion 35 as a schematic diagram showing a longitudinal section of the mouthpiece portion 30 of the non-combustion heating stick according to the second embodiment. The left side of FIG. 3A is the cooling unit 20 side (first side), and the right side is the end side (second side) where the user holds the liquid in his/her mouth for suction.
The center hole portion 35 is normally arranged closer to the cooling section 20 than the filter 31 as shown in the drawing, and preferably adjacent to the cooling section 20 .

The center hole portion 35 is composed of a filling layer 33 having one or more hollow portions and an inner winding paper 34 covering the filling layer. The center hole portion 35 has a function of increasing the strength of the mouthpiece portion 30 . The filling layer 33 is, for example, filled with cellulose acetate fibers at a high density, added with a plasticizer containing triacetin in an amount of 6% by mass or more and 20% by mass or less based on the mass of cellulose acetate, and hardened to have an inner diameter of 1.0 mm or more. It can be a rod of 5.0 mm or less. Since the packed bed has a high packing density of fibers, air and aerosol flow only through the hollow portion during suction, and hardly flow inside the packed bed. Since the filling layer inside the center hole portion 35 is a fiber filling layer, the feeling of touch from the outside during use hardly causes the user to feel uncomfortable. Note that the center hole portion 35 may not have the inner paper roll 34 and may retain its shape by thermoforming.

The center hole portion 35 and the filter 31 may be connected by, for example, an outer roll paper 36 . The outer paper web 36 can be, for example, a cylindrical paper. Further, the base material part 10, the cooling part 20, and the connected center hole part 35 and the filter 31 may be connected by chip paper, for example. These connections are made, for example, by coating the inner surface of the outer roll paper 36 with glue such as vinyl acetate, inserting the base material portion 10, the cooling portion 20, the connected center hole portion 35 and the filter 31, and winding them. can do. These may be divided and connected multiple times with multiple pieces of paper.
The inner roll paper 34 and the outer roll paper 36 used in the center hole portion 35 can be the same as the roll paper 32 in terms of the form, material, thickness, basis weight, and the like. The inner web 34 can also be omitted.

The filter 31 of the mouthpiece portion 30 may also be divided into two or more segments to form cavities between the filters.
FIG. 3(b) is a schematic diagram showing a vertical cross section of the mouthpiece portion 30 of the non-combustion heating stick according to the third embodiment, showing a view in which a cavity 37 is formed between filters. Similarly to FIG. 3(a), the left side of FIG. 3(b) is the cooling unit 20 side (first side), and the right side is the end side (second side) where the user sucks. .
In FIG. 3(b) the filter 31 forms two segments and there is a hollow cavity 37 between the two filters. The cavity 37 is formed by winding the web 32 with the two filter segments in the desired positions. Usually, a portion of the base material portion 10, the cooling portion 20, and the mouthpiece portion 30 are further wrapped with chipping paper (not shown) on the outside of the paper roll 32. As shown in FIG.
Cavity 37 may incorporate a crushable additive release container (eg, capsule) containing a crushable outer shell, such as gelatin, similar to that contained in filter 31 . If one capsule is placed in the cavity 37, the size of the capsule should be no more than 5 mm and smaller than the inner diameter of the cavity. Also, when two or more capsules are placed in the cavity, the size of the capsules should be 3.5 mm or less and smaller than the inner diameter of the cavity.
An ion exchange resin, which will be described later, may be placed in the cavity.

[Ion exchange resin]
In the stick 1 to which the embodiments described above are applied, at least one of the cooling portion 20 and the mouthpiece portion 30 contains ion exchange resin. In the stick 1, only the cooling portion 20 may contain the ion exchange resin, but preferably at least the mouthpiece portion 30 contains the ion exchange resin.
Here, the ion-exchange resin is a particulate substance in which a functional group is bonded to an organic polymer constituting a skeleton.

The average particle size of the ion-exchange resin is not limited as long as it can be used in the stick 1 of the present embodiment, and can be changed depending on where the ion-exchange resin is used, but is preferably 20 μm or more and 1200 μm or less. The average particle diameter of the ion exchange resin is more preferably 50 µm or more, still more preferably 100 µm or more, and particularly preferably 200 µm or more. Further, the average particle size of the ion exchange resin is more preferably 1000 μm or less, still more preferably 900 μm or less, and particularly preferably 800 μm or less. Here, the average particle size of the ion exchange resin is the mass-based average particle size measured by a sieving method.

Here, the ion-exchange resin has the characteristic that the particles swell when ionic species such as smoking taste-inhibiting components to be ion-exchanged are bound to the functional groups, depending on the type of the organic polymer and the functional groups that make up the skeleton. have
For example, when an ion-exchange resin is applied to the filter 31 of the mouthpiece portion 30, if the average particle size of the ion-exchange resin is excessively small, for example, the particles of the ion-exchange resin swell and the volume of the ion-exchange resin increases. , the gaps between the ion-exchange resins are likely to be filled, and the ventilation resistance of the filter may become too high. When the ion exchange resin is applied to the filter 31, the average particle size of the ion exchange resin is preferably 20 μm or more, more preferably 50 μm or more, from the viewpoint of suppressing an excessive increase in ventilation resistance due to swelling of the ion exchange resin. is more preferable, and 100 μm or more is particularly preferable.
On the other hand, when an ion-exchange resin is applied to the filter 31 of the mouthpiece portion 30, if the average particle diameter of the ion-exchange resin is excessively large, the gaps between the particles of the ion-exchange resin become too large to remove the taste-impairing components. efficiency tends to decrease. When the ion-exchange resin is applied to the filter 31, the average particle size of the ion-exchange resin is preferably 1200 μm or less, more preferably 700 μm or less, from the viewpoint of suppressing a decrease in efficiency of removing flavor-inhibiting components. It is more preferably 400 μm or less, particularly preferably 400 μm or less.

Although the BET specific surface area of the ion exchange resin is not particularly limited, it is preferably 10 m ² /g or more and 1200 m ² /g or less, for example. The BET specific surface area of the ion exchange resin is more preferably 20 m ² /g or more, still more preferably 30 m ² /g or more, and particularly preferably 50 m ² /g or more. The BET specific surface area of the ion exchange resin is more preferably 900 m ² /g or less, even more preferably 500 m ² /g or less, and particularly preferably 300 m ² /g or less. The BET specific surface area can be determined by a nitrogen gas adsorption method (BET multipoint method).
When the BET specific surface area of the ion exchange resin satisfies the above-described range, the efficiency of contact between the ion exchange resin and the aerosol is improved, leading to an improvement in the efficiency of removing flavor-inhibiting components.

Although the apparent density of the ion exchange resin is not particularly limited, it is preferably, for example, 0.1 g/cm ³ or more and 1.2 g/cm ³ or less. The apparent density of the ion exchange resin is more preferably 0.2 g/cm ³ or more, still more preferably 0.3 g/cm ³ or more, and particularly preferably 0.4 g/cm ³ or more. The apparent density of the ion exchange resin is more preferably 1.0 g/cm ³ or less, still more preferably 0.8 g/cm ³ or less, and particularly preferably 0.7 g/cm ³ or less.
If the apparent density of the ion exchange resin is excessively high, for example, when the ion exchange resin is applied to the filter 31, the weight of the filter 31 becomes too large. sell. On the other hand, if the apparent density of the ion-exchange resin is too low, the particles of the ion-exchange resin become brittle, and the ion-exchange resin is likely to be crushed during the manufacturing process of the non-combustion heating stick 1 . In this case, there is a concern that the manufacturing suitability and quality of the non-combustion heating stick 1 will deteriorate.

Although the total exchange capacity of the ion exchange resin is not particularly limited, it is preferably 0.1 meq/cm ³ or more and 20 meq/cm ³ or less, for example. The total exchange capacity of the ion exchange resin is more preferably 0.5 meq/cm ³ or more, more preferably 0.7 meq/cm ³ or more. Further, the total exchange capacity of the ion exchange resin is more preferably 18 meq/cm ³ or less, still more preferably 15 meq/cm ³ or less, and particularly preferably 10 meq/cm ³ or less.
When the total exchange capacity satisfies the above-described range, the effect of adsorption and removal of smoking taste-inhibiting components by the ion-exchange resin can be sufficiently obtained. In particular, when the total exchange capacity is 0.1 meq/cm ³ or more, more preferably 0.5 meq/cm ³ or more, and even more preferably 0.7 meq/cm ³ or more, even when the amount of the ion exchange resin is small. Even if there is, the ion-exchange resin can sufficiently adsorb and remove the smoking taste-inhibiting components.

Ion-exchange resins include porous-type ion-exchange resins having physical pores that do not disappear even when the ion-exchange resin is not swollen, and gel-type ion-exchange resins that do not have physical pores. be done.
In the present embodiment, either a porous ion exchange resin or a gel ion exchange resin may be used as the ion exchange resin, but the porous ion exchange resin is preferably used. Porous ion exchange resins are more resistant to volume changes due to swelling and shrinkage than gel ion exchange resins, and are less likely to be crushed. In addition, the porous ion exchange resin reacts more easily with large molecules than the gel ion exchange resin. It becomes easy to adsorb a component having a large molecular weight among smoking taste inhibiting components.
The average pore diameter of the ion-exchange resin is preferably 5 nm or more and 100 nm or less, more preferably 30 nm or more and 100 nm or less, from the viewpoint of facilitating selective removal of smoking taste-inhibiting components such as aldehydes.

Ion exchange resins include cation exchange resins, anion exchange resins, amphoteric ion exchange resins, chelate resins, and the like, depending on the difference in functional groups.
Examples of cation exchange resins include strongly acidic cation exchange resins having sulfo groups (--SO ₃ H) and the like as functional groups, and weakly acidic cation exchange resins having carboxyl groups (--COOH) and the like as functional groups.
As the anion exchange resin, a strongly basic anion exchange resin having a quaternary ammonium group such as a trimethylammonium group or a dimethylethanolammonium group as a functional group, and a primary to tertiary amino group such as a dimethylamino group as a functional group. Weakly basic anion exchange resins with
Amphoteric ion exchange resins have both cationic functional groups such as carboxyl groups and anionic functional groups such as quaternary ammonium groups.
A chelate resin has a chelating functional group such as polyamine or iminodiacetic acid, and forms a complex by bonding with a specific metal ion.

As the ion exchange resin, any of the above-described types may be used, but it is preferable to use a weakly acidic cation exchange resin, a weakly basic anion exchange resin, or a chelate resin. By using these ion-exchange resins, it becomes easier to selectively remove taste-inhibiting components such as aldehydes such as formaldehyde and acetaldehyde, and cyanide compounds such as hydrogen cyanide.
Also, the ion exchange resin may contain one type of functional group, or may contain two or more different types of functional groups. Including two or more different functional groups in the ion-exchange resin makes it easier to remove a plurality of different smoking taste-inhibiting components.

The organic polymer constituting the skeleton of the ion-exchange resin is not particularly limited. An acrylic resin is mentioned.
Further, the organic polymer constituting the skeleton of the ion exchange resin is preferably crosslinked, and the degree of crosslinking is, for example, 1% by mass or more and 25% by mass or less, and 5% by mass or more and 15% by mass or less. is preferred.

Specific examples of ion-exchange resins used in the stick 1 of the present embodiment include Amberlite (registered trademark), CG-50 (Organo Corporation), Diaion CR20 (Mitsubishi Chemical Corporation), and the like.

The ion exchange resin may be compounded with other additives. Other additives include, but are not limited to, adsorbents that adsorb odors generated from the ion-exchange resin, flavoring agents that add flavor and aroma to the aerosol generated by heating the base member 10, and the like.

Examples of the adsorbent include, but are not limited to, porous carbon such as activated carbon, and inorganic oxides such as aluminum oxide, zirconium oxide, titanium oxide, iron oxide, cerium oxide, silica, and aluminosilicate.
When an ion-exchange resin is used in the stick 1, depending on the type of ion-exchange resin, the user of the stick 1 may emit an unpleasant odor. By combining the ion exchange resin with an adsorbent as another additive, the odor generated from the ion exchange resin can be adsorbed, and discomfort to the user of the stick 1 can be reduced.

The flavoring agent is not particularly limited, but existing flavorings such as powdered flavorings and oily flavorings can be used, for example. Main powdered fragrances include powdered chamomile, fenugreek, menthol, mint, cinnamon, herbs, and the like. In addition, the main oily fragrances include lavender, cinnamon, cardamom, celery, clove, cascara, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon, orange, mint, cinnamon bark, caraway, Cognac, jasmine, chamomile, menthol, cashmere, ylang-ylang, sage, spearmint, fennel, pimento, ginger, anise, coriander, coffee, and the like. These powdery fragrances and oily fragrances may be used alone or in combination.

There are no particular limitations on the manner in which the ion-exchange resin is combined with the additive. For example, the additive may be simply mixed with the ion-exchange resin and used, or the additive may be bonded to the ion-exchange resin via a polymer.
Examples of polymers include, but are not limited to, celluloses such as cellulose acetate, cellulose sulfate, ethyl cellulose, hydroxyethyl cellulose, methyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose and derivatives thereof, starches such as carboxymethyl starch and hydroxypropyl starch, and alginic acid. , sodium alginate, potassium alginate, calcium alginate and derivatives thereof, polyethylene, agar, rubbers, polyvinyl acetate and the like.

When the ion-exchange resin is compounded with an additive, if the amount of the additive relative to the ion-exchange resin is too large, the function of the ion-exchange resin to adsorb the flavor-inhibiting components through ion exchange may be hindered. The amount of the additive compounded with the ion exchange resin is preferably 50 parts by mass or less, more preferably 10 parts by mass or less, and 1 part by mass or less with respect to 100 parts by mass of the ion exchange resin. is more preferred.

[Position of ion exchange resin]
As described above, the stick 1 contains ion exchange resin in at least one of the cooling section 20 and the mouthpiece section 30 . The stick 1 may contain the ion exchange resin in both the cooling section 20 and the mouthpiece section 30, but it is preferable that at least the mouthpiece section 30 contains the ion exchange resin.
In the cooling portion 20 and the mouthpiece portion 30 of the stick 1, there are no particular restrictions on the location and manner in which the ion-exchange resin is present, but the main location and manner of existence are as follows.

1) Inside the filter 31 of the mouthpiece part 30 The ion exchange resin is most typically contained inside the filter 31 . In this case, it is usually contained within the filter material.
When the filter 31 is composed of one segment as shown in FIG. may exist in a high concentration at a specific position of . When providing a concentration gradient or increasing the concentration at a specific position, it is preferable to remove the smoking taste inhibiting components in the product at a position farther from the user, so the ion exchange resin is placed on the cooling part 20 side in the filter 31 ( First side) is preferred.
Further, when the filter 31 is composed of a plurality of segments, the ion exchange resin can exist in any of the segments, but as described above, the taste-inhibiting components such as aldehydes are placed at a position far from the user. From the viewpoint of removal, it is preferable that a large amount of the ion-exchange resin is present in the segment on the cooling section 20 side (first side) in the filter 31 .

2) In the paper layer of the paper 32 around which the filter 31 is wound or on the surface facing the filter 31 The ion exchange resin may be contained in the paper 32 around which the filter 31 is wound. In this case, when manufacturing the paper roll 32, it is preferable to add an ion-exchange resin having a particle size smaller than the thickness of the paper roll 32 and to include it in the layers of paper constituting the paper roll 32.
Alternatively, it may be arranged on the surface of the paper roll 32 facing the filter 31 . In this case, the ion-exchange resin may be adhered to the surface of the paper roll 32 facing the filter 31 with an adhesive. may exist.

3) Inside Hollow Part of Mouthpiece Part 30 The ion exchange resin may exist inside the hollow part of the mouthpiece part 30 . The hollow portion may be the hollow portion provided in the center hole portion 35 shown in the schematic diagram of FIG. 3A, or may be another hollow portion. In this case, the ion-exchange resin may be filled in the entire hollow portion, or may be partially filled in the hollow portion. When the hollow portion has an opening with respect to the cooling portion 20 as shown in FIG. 3A, it is preferable to close the opening of the hollow portion with thin paper, filter material, or the like so as not to leak to the cooling portion 20 .

4) Surface Facing Hollow Part of Mouthpiece Part 30 The ion exchange resin may be present on the surface of the hollow part of the mouthpiece part 30 . The hollow portion may be the hollow portion provided in the center hole portion 35 shown in FIG. 3(a), or may be another hollow portion. In this case, the ion exchange resin may be adhered to the hollow portion side of the filling layer 33 of the center hole portion 35 with an adhesive, and the ion exchange resin may be applied so as to cover part or all of the hollow portion of the filling layer 33 . It can be molded.

5) The mouthpiece part 30 has a filter 31 consisting of a plurality of segments, and the ion exchange resin in the cavity 37 formed between the segments has a plurality of segments, as shown in the schematic diagram of FIG. It may be placed in cavities 37 formed between filters 31 made up of segments. In this case, the ion-exchange resin may be filled in particles in the cavity, or the ion-exchange resin may be molded into the shape of the cavity and arranged in the order of filter-silica gel-filter.
In FIG. 3(b), the mouthpiece portion 30 has a filter 31 made up of two segments, but the mouthpiece portion 30 has a filter 31 made up of three or more segments, and a plurality of filters 31 formed between the respective filters 31. An ion exchange resin may be placed in each of the cavities 37 of the .

6) Others Ion exchange resin may be present in the cooling section 20 . When the cooling part 20 has the openings V, from the viewpoint of preventing the ion-exchange resin from coming out of the stick 1, an ion-exchange resin whose particle diameter is larger than the width of the openings V, or It is preferred to use an ion exchange resin that is molded larger than it is wide. A layer of a porous molded body containing an ion exchange resin may be arranged between the cooling section 20 and the mouthpiece section 30 so as to cover the filter material of the mouthpiece section 30, or the molded body may be placed in the cooling section 20. and the base member 10.
Also, the ion exchange resin may be present in the molding paper 21 for molding the cooling section 20 . For example, an ion-exchange resin having a particle size smaller than the thickness of the forming paper 21 may be used during manufacture and present in the paper layers of the forming paper 21, and wrinkles, creases, etc. formed in the forming paper 21 may be removed. It may be adhered to the inside with an adhesive, or it may be present together with a surface treatment agent such as a coating agent when applying the surface treatment agent.
Further, part of the ion exchange resin may be present together with an aerosol source or the like in the substrate portion 10 so that the heating product in the substrate portion 10 is brought into contact with the ion exchange resin within the substrate portion 10 .

As described above, in the non-combustion heating stick 1 of the present embodiment, at least one of the cooling portion 20 and the mouthpiece portion 30 contains an ion exchange resin, so that the base portion 10 is heated to generate Smoking taste inhibitory components can be removed with an ion exchange resin. In addition, in the non-combustion heating stick 1, the ion-exchange resin can selectively remove smoking taste-inhibiting components such as aldehydes generated by heating the base member 10. FIG. This makes it possible to reduce the amount of the flavor-impairing components released from the non-combustion heating stick 1 .
In particular, when the heating temperature of the base material portion 10 is raised from the viewpoint of enhancing the user's satisfaction with the drinking taste, the amount of the smoking taste-impairing components generated tends to increase. Therefore, it is possible to reduce the amount of the taste-impairing components released from the non-combustion heating stick 1 while maintaining the user's satisfaction with the taste.

REFERENCE SIGNS LIST 1 non-combustion heating stick, 10 base material portion, 11 aerosol source, 20 cooling portion, 30 mouthpiece portion, 31 filter, 33 filling layer, 35 center hole portion, 37 cavity, 40 … chipping paper

Claims (11)

1. a substrate portion comprising an aerosol source;
   a cooling unit that cools vapor generated by heating the base material to generate an aerosol;
   a mouthpiece through which the aerosol passes;
   with
   A non-combustion heating stick in which at least one of the cooling part and the mouthpiece part contains an ion-exchange resin in which a functional group is bonded to an organic polymer.
2. The non-combustion heating stick according to claim 1, wherein the ion exchange resin is one or more resins selected from a chelate resin, a weakly basic anion exchange resin, or a weakly acidic cation exchange resin.
3. 3. The non-combustion heating stick according to claim 2, wherein the ion exchange resin contains at least one of an amine, an amino group and a carboxyl group as the functional group.
4. 4. The ion exchange resin according to any one of claims 1 to 3, wherein the organic polymer includes at least one of polystyrene, styrene-divinylbenzene copolymer, polymethacrylic acid, polyacrylic acid, and polyacrylic acid amide. A non-combustion heating stick as described in .
5. The non-combustion heating stick according to any one of claims 1 to 4, wherein the ion exchange resin comprises a porous ion exchange resin.
6. The non-combustion heating stick according to any one of claims 1 to 5, wherein the ion exchange resin has a granular shape with an average particle size of 20 µm or more and 1200 µm or less.
7. The non-combustion heating stick according to any one of claims 1 to 5, wherein the ion exchange resin has a BET specific surface area of 10 ^m2 /g or more and 1200 ^m2 /g or less.
8. The non-combustion heating stick according to any one of claims 1 to 7, wherein the ion exchange resin has an apparent density of 0.1 g/cm3 or ^more and 1.2 g/ ^cm3 or less.
9. The non-combustion heating stick according to any one of claims 1 to 8, wherein the ion exchange resin has a total exchange capacity of 0.5 meq/cm ³ or more and 20 meq/cm ^{3 or} less.
10. 10. The non-combustion heating stick according to any one of claims 1 to 9, wherein at least one of the cooling part and the mouthpiece part further contains another additive compounded with the ion exchange resin.
11. The ion-exchange resin is present in one or more of the following 1) to 5): 1) in the filter of the mouthpiece part; 11. Any one of claims 1 to 10, wherein the filter comprises a plurality of segments, 3) within a cavity of the mouthpiece portion, 4) a surface facing the cavity, and 5) within a cavity formed between said segments. A non-combustion heated stick according to claim 1.

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