WO2023095248A1

WO2023095248A1 - Non-combustion-heating-type stick

Info

Publication number: WO2023095248A1
Application number: PCT/JP2021/043211
Authority: WO
Inventors: 和彦片山; 公隆打井; 哲也本溜; 渓介春木
Original assignee: 日本たばこ産業株式会社
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2023-06-01

Abstract

This non-combustion-heating-type stick 1 comprises a substrate unit 10 including an aerosol source 11, a cooling unit 20 for cooling vapor generated due to heating of the aerosol source 11 and generating an aerosol, and a filter unit 30 through which the aerosol passes. The filter unit 30 has pieces 34 of a plant.

Description

Non-combustion heating stick

The present invention relates to non-combustion heating sticks.

For example, a smoking article with a filter described in Patent Document 1 includes a filter member arranged at the downstream end of a smoking body, air permeability paper wound around the outside of the filter member, a filter in which a flavor capsule is arranged, and a smoking article. Equipped with tipping paper wrapped around the outer peripheral surface of the downstream end of the main body and the outer peripheral surface of the filter to connect the smoking main body and the filter, the flavor capsule includes a capsule body and a colored liquid containing a flavor component.

Japanese Patent No. 6870104

In order to provide users with a new experience even in an inhalation device that generates an aerosol by heating a substrate containing an aerosol source, it is desired to be able to impart a new flavor and taste.
An object of the present invention is to provide a non-combustion heating stick that can impart a new flavor and taste.

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 filter portion through which the aerosol passes, the filter portion being a non-combustion heated stick having a piece of plant.
A second feature may be that the cooling section has an opening through which air flows into the cooling section from the outside.
A third feature is that the filter section further includes a first filter arranged on the side of the cooling section, and a second filter arranged on the opposite side of the first filter to the cooling section. , the strip may be disposed in a cavity formed between the first filter and the second filter.
A fourth characteristic may be that the piece is composed of at least one of flower, fruit, leaf, stem and root of a plant.
A fifth feature may be that the piece is obtained by drying and cutting the plant.
A sixth feature may be that the plant is at least one selected from fragrant plants containing fragrant ingredients.
A seventh feature may be that the piece includes a plasticizer used to shape the filter material.

According to the first feature, it is possible to provide a non-combustion heating stick that can impart a new flavor and taste.
According to the second feature, it is possible to improve the delivery efficiency of the aerosol at the time of inhalation as compared with the case where the cooling part is not provided with openings.
According to the third feature, it is possible to prevent the piece from coming off, compared to the case where the piece is not arranged between the first filter and the second filter.
According to the fourth feature, it is possible to improve the efficiency of imparting the flavor and taste to the aerosol.
According to the fifth feature, imparting flavor and taste to the aerosol can be promoted compared to the case where the plant is not dried and cut.
According to the sixth feature, the aerosol can be provided with a perfume component compared to the case where no perfume plant is used.
According to the seventh feature, compared to the case where one piece does not contain a plasticizer, it is possible to suppress the loss during storage of the component that realizes the flavor and taste.

It is a figure which shows the longitudinal cross-section of the stick which concerns on 1st Embodiment. 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. It is a figure which shows the longitudinal cross section of the stick which concerns on 2nd 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.

<First Embodiment>
FIG. 1 is a view showing a longitudinal section of a 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 filter 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 a tipping paper 40 that integrates the base material portion 10, the cooling portion 20, and the filter 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 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 another example, 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 part 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 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, such as mints and herbs. 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 portion 10 is housed in the internal space 141 of the holding portion 140 while the stick 1 is held by the holding portion 140 .

The base material portion 10 formed by winding the aerosol source 11 with the wrapping paper 12 preferably has a cylindrical 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 size of the aerosol source 11 constituting the base member 10 in the center line direction is 10 mm or more and 70 mm or less, and the width thereof 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 simply referred to as a homogenized sheet). It can be anything. 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.

Also, the aerosol source 11 may be composed of a tobacco sheet. 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 filling mode (so-called gathered sheet) is exemplified in a state in which the sheet is folded back multiple times horizontally with respect to the center line direction of the sheet. 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 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 a slurry method, it can be manufactured 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).
Furthermore, 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. It is preferably 45% by mass or less.
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).
Moreover, the wrapping paper 12 may be appropriately coated.

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 filter part 30, and is a member formed so that the cross section of a cylinder or the like is hollow (cavity) by winding the forming paper 21 thereon.

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 a plurality of openings V (also called "ventilation filter (Vf)" in this technical field) concentrically and circumferentially. The aperture V is a hole penetrating the forming paper 21 . The shape of the hole can be exemplified by a polygon, a polygon with rounded corners, a circle, an ellipse, or the like. 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 .

Due to the presence of the plurality of openings V, air flows into the cooling section 20 from the outside during suction, and the temperature of steam and air flowing from the base material section 10 can be lowered. Furthermore, by setting the position where the cooling unit 20 is provided within a region of 4 mm or more in the direction of the cooling unit 20 from the boundary between the cooling unit 20 and the filter unit 30, not only the cooling capacity is improved, but also the heat generated by heating It is possible to suppress the retention of the substance (product) 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 to generate an aerosol.

In the cooling unit 20, when a plurality of 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 unit 20 and the filter unit 30, in the region of less than 4 mm in the direction of the cooling unit 20 side It is preferable not to provide an aperture group.
Further, when the stick 1 has a configuration in which the base material portion 10, the cooling portion 20, and the filter 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. 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 .

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 unit 20 from the boundary between the cooling unit 20 and the filter unit 30 from the viewpoint of improving the product delivery by heating. Furthermore, from the viewpoint of 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 preferably a region of 16 mm or less, more preferably a region of 15.5 mm or less, and a region of 15 mm or less. is more preferable, and a region of 14.5 mm or less is particularly preferable.

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 the tipping paper 40 may be covered with a rip release material. The lip release material is configured to assist when the user mouths the filter portion 30 of the stick 1 so that the contact between the lips and the tipping paper 40 is easily released without substantially sticking. means any material that 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 .

[Filter section 30]
The filter section 30 is connected to the second side of the cooling section 20 via tip paper 40 . The chip paper 40 connects (joins) the second end of the cooling unit 20 and the first end of the filter unit 30 by integrally winding them.

The filter section 30 has a first filter 31 connected to the second side of the cooling section 20 and a second filter 32 located on the second side of the first filter 31 . The filter part 30 also has a piece 34 that is at least part of a plant and is housed in a hollow cavity 33 formed between the first filter 31 and the second filter 32 .

The cavity 33 is formed by winding the paper roll 35 with the first filter 31 and the second filter 32 arranged. The material of the paper roll 35 is not particularly limited, and the material of the tip paper 40 can be exemplified. Furthermore, a portion of the base material portion 10, the cooling portion 20, and the filter portion 30 are wrapped with the tip paper 40 on the outer side of the paper roll 35. As shown in FIG.

In addition, the filter unit 30 is provided between the first filter 31 and the cavity 33 on the first side of the cavity 33, and is a member for rectifying the aerosol flowing from the first side and guiding it to the cavity 33. may be formed.

The cross section of the first filter 31 and the second filter 32 of the filter part 30 is substantially circular, and the diameter of the circle can be changed appropriately according to the size of the product, but is usually 4.0 mm or more and 9.0 mm. It is preferably 4.5 mm or more and 8.5 mm or less, 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 first filter 31 and the second filter 32 of the filter part 30 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, and 15.0 mm It is preferably 26.0 mm or more, and more preferably 16.0 mm or more and 25.0 mm or less.
The size of the filter part 30 in the center line direction can be appropriately changed according to the size of the product. More preferably, it is 15.0 mm or more and 25.0 mm or less.
The shapes and dimensions of the first filter 31, the second filter 32, and the cavity 33 can be appropriately adjusted so that the shape and dimensions of the filter section 30 fall within the above ranges.

The ventilation resistance per 120 mm of the size of the filter 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, preferably 70 mmH ₂ O or more and 280 mmH ₂ O or less, and 90 mmH 2 O or more. ₂ O or more and 260 mmH ₂ O or less is more preferable.
The airflow resistance is measured according to the ISO standard method (ISO6565) using, for example, a Cerulean filter airflow resistance meter. The airflow resistance of the filter section 30 is determined by the air flow rate (17.5 cc/min) when air is flown from the first side to the second side in a state in which air does not pass through the side surface of the filter section 30. Refers to the pressure difference between the first side and the second side. Units are generally expressed in _mmH2O .

The first filter 31 and the second filter 32 are not particularly limited as long as they contain filter materials and have 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 falling off of the piece 34 is prevented while suppressing the filtering function. Prevention is also one of the important functions.

The filter material that constitutes the first filter 31 and the second filter 32 is, for example, a cylindrically shaped filler such as acetate, charcoal, cellulose fiber, non-woven fabric, or pulp paper. Moreover, the aspect using the paper filter filled with the sheet-like pulp paper as a filter material 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.
In addition, it is preferable to use a plasticizer for the first filter 31 and the second filter 32 in order to suppress deformation when an external force is applied to the filter portion 30 .

The cavity 33 is a space formed inside the filter section 30 , and is a cylindrical space surrounded by the second side surface of the first filter 31 , the first side surface of the second filter 32 , and the paper roll 35 . be. Cavity 33 only needs to be large enough to accommodate piece 34 . There is no particular limit to the number of pieces 34 to be installed, and the pieces 34 may be installed in a folded state. Moreover, the shape of the cavity 33 is not particularly limited. Also, the number of cavities 33 may be plural.

The piece 34 is a plant material that imparts flavor to the aerosol. Piece 34 comprises at least one of a flower, fruit, leaf, stem, and root of the plant. The piece 34 is, for example, a dried plant cut or cut to size. Although the shape of the piece 34 is not particularly limited, it is preferably of a size that does not pass through the filter materials of the first filter 31 and the second filter 32 and is equal to or smaller than the inner diameter of the cavity 33 . Strip 34 may also include a plasticizer that is used to mold the filter material that makes up the filter.

The plant that constitutes the piece 34 is not particularly limited, but a fragrant plant containing fragrant ingredients is particularly suitable. Major aromatic plants include peppermint, spearmint, applemint, coffee, tea, pineapple, chamomile, eucalyptus, thyme, geranium, jasmine, rosemary, orange blossom, lavender, lemongrass, pine needles, clover, lavender, vanilla, Licorice, clove, wintergreen, sage, taxol, bergamot, basil, valerian, hyssop, tea tree, myrrh, juniper, bay leaf, cardamom, cinnamon, coriander, cumin, ginger, nutmeg, oregano, paprika, saffron, perilla, turmeric , turmeric, cilantro, rose, tobacco and the like. These aromatic plants may be used alone or in combination.

As described above, the stick 1 includes the base portion 10 including the aerosol source 11, the cooling portion 20 that cools the vapor generated by heating the base portion 10 to generate an aerosol, and the aerosol and a filter unit 30 through which the The filter portion 30 then has a piece of plant 34 .

The stick 1 is inserted into the holding portion 140 of the suction device 100 by the user. After the temperature of the substrate portion 10 heated by the heating portion 121 reaches a predetermined temperature, the user sucks the substrate portion 10 to generate an aerosol. When the user inhales, the product aerosol is delivered through the filter portion 30 having the plant piece 34 . As the aerosol passes through the strip 34, the strip 34 imparts a flavor. In other words, the stick 1 can impart a new flavor to the aerosol.

Here, when the piece 34 is arranged in the cooling unit 20 , steam generated by heating the base material unit 10 passes through the piece 34 . In such a case, the vapor adheres to the piece 34 and liquefies, thereby reducing the efficiency of aerosol generation. In the present embodiment, since the piece 34 is arranged on the second side with respect to the cooling unit 20 , the aerosol generated by cooling the vapor generated by heating the base material unit 10 in the cooling unit 20 is generated by the piece 34 pass through. Thereby, the stick 1 can improve the aerosol delivery efficiency compared to the case where the piece 34 is arranged in the cooling part 20 .

Also, cooling in the cooling unit 20 means cooling to the extent that vapor is liquefied and aerosol is generated. Therefore, if the aerosol generated by the cooling unit 20 is sucked as it is, the temperature of the aerosol is high and the user may feel uncomfortable. In the stick 1, the filter part 30 absorbs heat from the aerosol, which is at a high temperature when the user sucks it, and further cools it, so that the user can be prevented from feeling uncomfortable.

Here, the cooling section 20 preferably has an opening V through which air flows into the cooling section 20 from the outside.
The aerosol passing through piece 34 is preferably not condensation nuclei with water molecules adsorbed to the surface. If there are no openings V in the cooling part 20, air does not flow into the cooling part 20 from the outside at the time of suction, so the temperature in the cooling part 20 rises, and the steam flowing in from the base material part 10 is not sufficiently cooled. There is a possibility that it will not. In the present embodiment, since there are openings V for inflow of outside air, it is possible to promote cooling of the steam. As a result, the stick 1 can improve the delivery efficiency of the aerosol during inhalation, compared to a configuration in which the aperture V is not formed.

The filter unit 30 has a first filter 31 arranged on the side of the cooling unit 20, and a second filter 32 arranged on the opposite side of the first filter 31 from the cooling unit 20, and Strip 34 may be placed in cavity 33 formed between first filter 31 and second filter 32 .
Since the piece 34 is housed in the cavity 33 between the first filter 31 and the second filter 32, in the manufacturing process of connecting the base material part 10, the cooling part 20 and the filter part 30 with the tip paper 40, It suppresses that the piece 34 falls off. Moreover, it suppresses that the one piece 34 falls off at the time of conveyance. This can suppress the loss of the flavor and taste imparted to the aerosol.

Also, piece 34 may comprise at least one of a plant flower, bean, fruit, leaf, stem, and root.
Depending on the plant, the part suitable for imparting a flavor to the aerosol differs. In this embodiment, the piece 34 is configured so as to include a portion suitable for imparting a flavor to the aerosol, thereby improving the efficiency with which the flavor is imparted to the aerosol.

Additionally, the piece 34 may be a dried and cut plant.
If the plant is not dry, the volume or mass of the piece 34 required to impart flavor to the aerosol increases with the moisture content of the plant. In this embodiment, it is possible to reduce the volume and mass of the piece 34 required for imparting flavor to the aerosol. In addition, by cutting the plant and increasing the surface area of the one piece 34, it is possible to promote the impartation of flavor and taste.

Furthermore, it is preferable that at least one plant be selected from fragrant plants containing fragrant ingredients. Preferably, the perfume ingredient is volatile. In the case of non-perfuming plants, it is difficult to impart perfume ingredients to the aerosol. In this embodiment, the aerosol can be provided with a perfume component.

Strip 34 may contain a plasticizer that is used to mold the filter material.
The volatile constituents that provide the flavor imparted to the aerosol are lost from the strip 34 while the stick 1 is stored without use. In the present embodiment, it is possible to suppress loss during storage of components that realize flavor and taste.
Further, for example, when the piece 34 is dry mint leaves and contains triacetin as a plasticizer, compared to the case where the piece 34 does not contain a plasticizer, the dried mint leaves give the aerosol a flavor and taste when inhaled. increase in quantity.

<Second embodiment>
FIG. 3 is a view showing a longitudinal section of the stick 2 according to the second embodiment.
A stick 2 according to the second embodiment differs from the stick 1 according to the first embodiment in a filter portion 50 corresponding to the filter portion 30 . Differences from the first embodiment will be described below. The same reference numerals are used for the same items in the first embodiment and the second embodiment, and detailed descriptions thereof are omitted.

The filter unit 50 includes a first filter 51 connected to the second side of the cooling unit 20 , a second filter 52 located on the second side of the first filter 51 , and surroundings of the first filter 51 and the second filter 52 . It has a roll paper 55 wound on. The filter part 50 also has a piece 54 that is at least part of a plant and is housed in the first filter 51 . Details of the first filter 51 will be described later. The shape and dimensions of the first filter 51 and the second filter 52 can be adjusted as appropriate. Furthermore, a portion of the base material portion 10, the cooling portion 20, and the filter portion 50 are wrapped with the tip paper 40 on the outer side of the paper roll 55. As shown in FIG. Also, the filter unit 50 may include a filter that performs the same role as the first filter 31 between the cooling unit 20 and the first filter 51 .

The second filter 52 prevents the piece 34 from falling off the stick 2. Preferably, the second filter 52 does not have an opening penetrating in the centerline direction. The second filter 52 may be identical to the second filter 32 shown in FIG.

In the first filter 51, one piece 54 is filled in a filter material formed by molding filter fibers into a cylindrical shape. This filter material is, for example, acetate, charcoal, cellulose fiber, non-woven fabric, pulp paper, etc. The same filter material as the first filter 31 (see FIG. 1) and the second filter 52 may be used.

The pieces 54 filled in the first filter 51 are preferably dispersed and distributed in the first filter 51 . The method of adding the pieces 54 to the filter material is not particularly limited, but it is preferable to add a plasticizer to the pre-molded filter material before adding the pieces 54 to the filter material. The strips 54 may also contain a plasticizer that is added to the filter fibers prior to applying the strips 54 to the filter material. This plasticizer binds the filter fibers together so as to suppress deformation when an external force is applied to the filter portion 50 .

It can be exemplified that the type and part of the plant forming the piece 54 are the same as the type and part of the plant forming the piece 34 . Piece 54 may be formed by cutting piece 34 into small pieces.

As described above, the stick 2 includes the base portion 10 including the aerosol source 11, the cooling portion 20 that cools the vapor generated by heating the base portion 10 to generate an aerosol, and the aerosol and a filter unit 50 through which the The filter portion 50 then has a piece of plant 54 .

With Stick 2, as with Stick 1, when the user inhales, the product aerosol is delivered through a filter portion 50 having a piece of plant 54. Then, when the aerosol passes through the piece 54, the piece 54 imparts a flavor to the stick 2, so that the stick 2 can impart a new flavor to the aerosol.

In the present embodiment, since the first filter 51 is arranged on the second side with respect to the cooling unit 20, the aerosol generated by cooling the steam generated by heating the base material unit 10 in the cooling unit 20 is It passes through the first filter 51 . Thereby, the stick 2 can improve the aerosol delivery efficiency compared to the case where the piece 54 is arranged in the cooling part 20 .

Also, cooling in the cooling unit 20 means cooling to the extent that vapor is liquefied and aerosol is generated. Therefore, if the aerosol generated by the cooling unit 20 is sucked as it is, the temperature of the aerosol is high and the user may feel uncomfortable. In the stick 2, the filter part 50 absorbs heat from the aerosol, which is at a high temperature when the user inhales it, and further cools it, so that the user can be prevented from feeling uncomfortable.

Here, since the cooling unit 20 has the openings V through which air flows into the cooling unit 20 from the outside, cooling of the steam can be promoted. As a result, the delivery efficiency of the aerosol during suction can be improved.

In the filter part 50, since the second filter 52 is arranged on the second side of the first filter 51 including the piece 54, the piece 54 is prevented from coming off during transportation. This can suppress the loss of the flavor and taste imparted to the aerosol.

The strip 54 contains the plasticizer used to mold the filter material, thereby limiting the loss during storage of flavor-enabling ingredients.
Further, for example, when the piece 54 is dry mint leaves and contains triacetin as a plasticizer, compared to the case where the piece 54 does not contain a plasticizer, the dried mint leaves give the aerosol a flavor and taste when inhaled. increase in quantity.
Furthermore, since the pieces 54 are dispersedly distributed in the first filter 51, it is possible to promote imparting a new flavor and taste to the aerosol during inhalation.

DESCRIPTION OF SYMBOLS 1, 2... Stick 10... Base material part 11... Aerosol source 20... Cooling

part

30, 50...

Filter part

31, 51...

First filter

32, 52... Second filter 33... Cavity, 34 , 54... piece, 40... tipping paper

Claims

a substrate portion comprising an aerosol source;
a cooling unit that cools vapor generated by heating the base material to generate an aerosol;
and a filter unit through which the aerosol passes,
The filter part is a non-combustion heated stick with a piece of plant.
2. The non-combustion heating stick according to claim 1, wherein the cooling part has an opening through which air flows into the cooling part from the outside.
The filter unit has a first filter arranged on the cooling unit side and a second filter arranged on the side opposite to the cooling unit with respect to the first filter,
3. A non-combustion heating stick according to claim 1 or 2, wherein said strip is disposed in a cavity formed between said first filter and said second filter.
4. The non-combustion heating stick according to any one of claims 1 to 3, wherein said piece comprises at least one of flower, fruit, leaf, stem and root of said plant.
5. The non-combustion heating stick according to any one of claims 1 to 4, wherein said one piece is obtained by drying and cutting said plant.
The non-combustion heating stick according to any one of claims 1 to 5, wherein the plant is at least one selected from fragrant plants containing fragrant ingredients.
7. A non-combustion heated stick according to any one of the preceding claims, wherein the piece comprises a plasticizer used to mold the filter material.