JP7569383B2 - Non-combustion heated tobacco products and electrically heated tobacco products - Google Patents

Description

The present invention relates to non-combustion heated tobacco and electrically heated tobacco products.

An electrically heated tobacco product has been developed that includes an electrically heated device that includes a heater member, a battery unit that serves as a power source for the heater member, and a control unit for controlling the heater member, and a non-combustion heated tobacco that is inserted so as to come into contact with the heater member (Patent Document 1). The non-combustion heated tobacco generally includes a tobacco rod in which tobacco shreds, an aerosol-generating substrate, etc. are wrapped in cigarette paper, a mouthpiece for inhaling the aerosol generated from the tobacco rod by heating, and tipping paper around which these are wrapped.
When using an electrically heated tobacco product, the non-combustion heated tobacco is inserted into an electrically heated device, and the tobacco rod is heated from the point of contact with the heater member by generating heat, and flavor components are delivered to the user together with the aerosol-generating substrate contained in the tobacco rod.

In tobacco-related technical fields, particularly in the field of non-combustion heated tobacco products, further improvements in flavor are desired.

JP 2018-191652 A

In technical fields related to non-combustion heated tobacco, there is a demand to increase the value of the product by imparting desired colors, letters, patterns, etc. to areas on the tipping paper that constitutes the wrapping part of a non-combustion heated tobacco, including the part that is heated during use, thereby giving the non-combustion heated tobacco a desired appearance, or by forming a base for giving such a desired appearance.
On the other hand, it has become clear that decomposition of components contained in the coating agent contributes to an increase in the generation of substances that have undesirable effects on smoking taste, etc.

Therefore, the objective of the present invention is to provide a non-combustion heated tobacco and an electrically heated tobacco product that suppresses the generation of substances that have undesirable effects on the smoking taste, etc., when using a non-combustion heated tobacco, and that can impart a desired appearance to the wrapping part.

After extensive research, the inventors discovered that by coating at least a portion of the wrapping part wrapped in tipping paper with a resin composition, the area to which the resin composition is coated includes the area that is heated when the non-combustion heated tobacco is in use, and the resin composition has a specific composition, it is possible to suppress the generation of substances that have undesirable effects on the smoking taste, etc., when the non-combustion heated tobacco is in use, and it is also possible to impart a desired appearance to the wrapping part, thereby arriving at the present invention.

That is, the gist of the present invention is as follows.
[1] A non-combustion heat-not-burn tobacco product having a wrapping part including a tobacco rod part and a mouthpiece part, and these parts being wrapped with tipping paper,
A resin composition is applied to at least a portion of the tip paper constituting the winding portion,
the region to which the resin composition is applied includes a heating portion during use of the non-combustion heat-not-burn tobacco product;
The resin composition comprises one or more resins selected from the group consisting of ethyl cellulose, hydroxyethyl cellulose, methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, alkyd resins, polyamide resins, styrene-acrylic resins, butyl methacrylate-methyl methacrylate resins, and polyester resins, and a plasticizer.
[2] The non-combustion heated tobacco according to [1], wherein the region to which the resin composition is applied includes at least a region extending from the tobacco rod side end toward the mouth end by 10% or less of the total length of the tipping paper in the longitudinal direction of the non-combustion heated tobacco.
[3] The non-combustion heated tobacco according to [1] or [2], wherein the region coated with the resin composition includes at least a region extending from the tobacco rod side end of the wrapping part in the longitudinal direction to a distance of 5 mm or less.
[4] The non-combustion heating tobacco according to any one of [1] to [3], wherein the resin composition further contains a colorant component.
[5] The non-combustion heat-not-burn tobacco according to any one of [1] to [4], wherein the resin composition further contains a thermal developer.
[6] The non-combustion heating tobacco according to any one of [1] to [5], wherein the coating amount of the solid content attributable to the resin composition in the tip paper is 0.0001 to 3 wt %.
[7] The non-combustion heating tobacco product according to any one of [1] to [6], wherein the mouthpiece portion has a cooling portion and a filter portion.
[8] An electrically heated tobacco product comprising: an electrically heated device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member; and the non-combustion heated tobacco product according to any one of [1] to [7], which is inserted so as to come into contact with the heater member.

The present invention provides a non-combustion heated tobacco and an electrically heated tobacco product that can suppress the generation of substances that have undesirable effects on the smoking taste, etc., when using a non-combustion heated tobacco, and that can form a desired appearance in the wrapping section.

FIG. 2 is a schematic diagram showing one embodiment of a non-combustion heated tobacco product in which a resin composition is applied to tipping paper. FIG. 2 is a schematic diagram showing another embodiment of a non-combustion heated tobacco product in which a resin composition is applied to tipping paper. FIG. 2 is a schematic diagram showing yet another embodiment of a non-combustion heated tobacco product in which a resin composition is applied to tipping paper. FIG. 1 is a schematic diagram showing one embodiment of an electrically heated tobacco product in which the outer circumferential surface of a tobacco rod is heated. FIG. 1 is a schematic diagram showing one embodiment of an electrically heated tobacco product in which the inside of a tobacco rod is heated.

The following describes in detail the embodiments of the present invention, but these descriptions are merely examples (representative examples) of the embodiments of the present invention, and the present invention is not limited to these contents as long as they do not depart from the gist of the present invention.
In addition, in the schematic diagrams of the non-combustion heated tobacco shown in Figures 1 to 3, various components are depicted as being appropriately large or small for the purpose of explanation, and do not represent the actual size or proportions of the embodiments of the present invention.
The wrapping portion is a concept that includes the tip paper and the resin composition coated thereon.
In addition, in the present invention, unless otherwise specified, the "outside" of the wrapping part means the surface that comes into contact with the user's lips when using a non-combustion heated tobacco product, and the "inside" means the opposite surface.
In addition, in this specification, when an expression is used using "~" followed by a numerical value or physical property value, the values before and after the expression are used as including the values before and after the expression.

<Non-combustion heated tobacco>
A non-combustion heated tobacco (hereinafter, also simply referred to as "non-combustion heated tobacco") according to one embodiment of the present invention is a non-combustion heated tobacco having a tobacco rod part and a mouthpiece part, and a wrapping part formed by wrapping these components with tipping paper, wherein at least a part of the tipping paper constituting the wrapping part is coated with a resin composition,
the region to which the resin composition is applied includes a heating portion during use of the non-combustion heat-not-burn tobacco product;
The resin composition is a non-combustion heat-not-burn tobacco product comprising one or more resins selected from the group consisting of ethyl cellulose, hydroxyethyl cellulose, methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, alkyd resins, polyamide resins, styrene-acrylic resins, butyl methacrylate-methyl methacrylate resins, and polyester resins, and a plasticizer.
An example of the non-combustion heat-not-burn tobacco according to the above embodiment is shown in Fig. 1. The non-combustion heat-not-burn tobacco will be described below with reference to Fig. 1. Note that Fig. 1 shows the resin composition uniformly coated on a portion of one side of the tipping paper, but this is not a limitation and the concentration may vary depending on the coating location. This also applies to the other figures.
The direction h in FIG. 1 is the longitudinal direction of the non-combustion heating tobacco product.

It is preferable that the non-combustion heating tobacco has a columnar shape that satisfies an aspect ratio defined as follows of 1 or more.
Aspect ratio = h/w
w is the width of the bottom surface of the columnar body (in the present invention, the width of the bottom surface on the tobacco rod side), h is the height, and it is preferable that h≧w. However, in the present invention, as described above, the long axis direction is specified as the direction indicated by h. Therefore, even when w≧h, the direction indicated by h is conveniently called the long axis direction. The shape of the bottom surface is not limited, and may be polygonal, rounded polygonal, circular, elliptical, etc., and the width w is the diameter when the bottom surface is circular, the major axis when the bottom surface is elliptical, and the diameter of the circumscribed circle or the major axis of the circumscribed ellipse when the bottom surface is polygonal or rounded polygonal. For example, in the embodiment shown in FIG. 1, since the bottom surface is a circle, its diameter can be determined. The diameter is the width w, and the length perpendicular to this is the height h.

The length h of the non-combustion heating tobacco in the major axis direction is not particularly limited, and is, for example, usually 35 mm or more, preferably 40 mm or more, and more preferably 45 mm or more, and is usually 105 mm or less, preferably 95 mm or less, and more preferably 85 mm or less.
The width w of the bottom surface of the columnar body of the non-combustion heating tobacco is not particularly limited, and is, for example, usually 5 mm or more, preferably 5.5 mm or more, and usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less.
Below, each component part of the non-combustion heating tobacco product will be described.

<Winding section>
As shown in Fig. 1, one aspect of the embodiment of the present invention has a wrapping section in which a tobacco rod section 10 and a mouthpiece section 11 are wrapped with tipping paper 12. Although not shown in Fig. 1, the tobacco rod section 10 is a tobacco filler wrapped with cigarette paper, as described below. Furthermore, the tipping paper is at least partially coated with a resin composition 13. The area coated with the resin composition 13 includes the heating site when the non-combustion heated tobacco is used. Specifically, it is preferable that the area coated with the resin composition 13 includes the tobacco rod side end of the tipping paper as shown in Fig. 1.
In such an embodiment, for example, a color, a pattern, letters, etc. can be imparted to the area to which the resin composition is applied, and a desired appearance can be formed. In addition, since the resin composition has a specific composition, even if it is applied to an area including a heating portion of a non-combustion heat-not-burn tobacco, an unpleasant flavor is not generated during use.

It is preferable that the region coated with the resin composition includes at least an area from the tobacco rod end toward the mouth end to 10% or less of the total length of the tipping paper in the longitudinal direction of the non-combustion heated tobacco. Usually, colors, patterns, letters, etc. are often imparted to the above-mentioned region of the tipping paper forming the non-combustion heated tobacco. Therefore, coating the above-mentioned resin composition on the region including at least the above-mentioned region of the tipping paper is a preferred embodiment for imparting the desired appearance to the non-combustion heated tobacco. On the other hand, the region to be coated with the resin composition may include, for example, an area including an area up to 20% or less of the total length of the tipping paper in the longitudinal direction of the non-combustion heated tobacco from the tobacco rod end toward the mouth end, an area including an area up to 40% or less of the total length, an area including an area up to 60% or less of the total length, an area including an area up to 80% or less of the total length of the tipping paper, or an embodiment in which the entire tipping paper is coated. These embodiments can be appropriately changed depending on the position where the color, pattern, letter, etc. is imparted on the tipping paper.

In addition, as another embodiment, the region coated with the resin composition may include at least a region from the tobacco rod end in the longitudinal direction of the wrapping part to 5 mm or less. This embodiment is preferred because color, pattern, lettering, etc. are often imparted to the above-mentioned region of the tipping paper forming the non-combustion heated tobacco. On the other hand, the region coated with the resin composition may include a region including a region from the tobacco rod end in the longitudinal direction of the wrapping part to 7 mm or less, a region including ...

[Tip paper]
The material of the tipping paper constituting the winding part 12 is not particularly limited, and can be paper made of general plant fiber (pulp), a sheet using polymer-based chemical fiber (polypropylene, polyethylene, nylon, etc.), a polymer-based sheet, a metal foil such as aluminum foil, etc. The tipping paper referred to here is a sheet that connects multiple segments in a non-combustion heated tobacco, for example, connecting the tobacco rod part and the mouthpiece part.

The method for producing the tip paper is not particularly limited, and a general method can be applied. For example, in the case of an embodiment in which pulp is the main component, a method of adjusting and uniforming the texture during the papermaking process using a Fourdrinier papermaking machine, a cylinder papermaking machine, a combined cylinder and short-circuit papermaking machine, etc. using pulp can be mentioned. If necessary, a wet strength agent can be added to impart water resistance to the cigarette paper, or a sizing agent can be added to adjust the printing condition of the cigarette paper. Furthermore, papermaking internal additives such as aluminum sulfate, various anionic, cationic, nonionic, or amphoteric retention improvers, drainage improvers, and paper strength enhancers, as well as papermaking additives such as dyes, pH adjusters, defoamers, pitch control agents, and slime control agents can be added.
The pulp may be made from wood pulp such as softwood pulp or hardwood pulp, or may be made by mixing non-wood pulp generally used for cigarette papers for smoking articles, such as flax pulp, hemp pulp, sisal pulp, esparto, etc. The types of pulp that can be used include chemical pulp produced by the kraft cooking method, acidic/neutral/alkaline sulfite cooking method, soda salt cooking method, etc., ground pulp, chemi-ground pulp, thermomechanical pulp, etc.

The height of the tipping paper 11 in the longitudinal direction is not particularly limited, but from the viewpoint of the aerosol delivery amount and manufacturing suitability, it is usually 15 mm or more, preferably 20 mm or more, and more preferably 25 mm or more. On the other hand, it is usually 55 mm or less, and preferably 50 mm or less.
The thickness of the tipping paper 11 is not particularly limited, but from the viewpoint of the aerosol delivery amount and manufacturing suitability, it is usually 30 μm or more, and preferably 35 μm or more. On the other hand, it is usually 150 μm or less, and preferably 140 μm or less.

The basis weight of the tip paper 11 is not particularly limited, but from the viewpoint of the aerosol delivery amount and manufacturing suitability, it is usually 30 g/m2 or ^more , and preferably 35 g/m2 or ^more . On the other hand, it is usually 150 g/ ^m2 or less, and preferably 140 g/m2 or ^less .
The air permeability of the tipping paper 11 is not particularly limited, but from the viewpoint of the aerosol delivery amount and manufacturing suitability, it is preferably 10 Coresta units or less.

[Resin composition]
The resin composition applied onto the chip paper contains one or more resins selected from the group consisting of ethyl cellulose, hydroxyethyl cellulose, methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, alkyd resins, polyamide resins, styrene-acrylic resins, butyl methacrylate-methyl methacrylate resins, and polyester resins, and a plasticizer.
By applying the resin composition to at least a portion of the tipping paper constituting the wrapping part, it is possible to impart a desired appearance to the wrapping part of the non-combustion heated tobacco, or to form a base for imparting such a desired appearance. When a base is formed, and printing is performed on the base by a means other than the resin composition, it is possible to improve the fixation of the ink, and also to prevent the ink from soaking into and bleeding through the tipping paper. Furthermore, by forming a base, it is possible to smooth the surface of the base, thereby improving the reproducibility of the desired design.
Furthermore, if printing is performed on the tip paper by a means other than the above-mentioned resin composition, peeling or fading of the printed area can be prevented by applying the above-mentioned resin composition to cover the printed area.
The region coated with the resin composition includes the heated portion of the non-combustion heat-not-burn tobacco during use. In conventional techniques, when a coating agent is applied to the heated portion, an undesirable flavor is generated, but when the resin composition of the present invention is applied, such a problem does not occur.

Cellulose ethers such as ethyl cellulose, hydroxyethyl cellulose, methyl cellulose, hydroxyethyl methyl cellulose, and carboxymethyl cellulose can be appropriately selected from commercially available products and used.
These cellulose ethers may be used which have a viscosity of a 2% by weight aqueous solution at 20° C. of, for example, 3 to 140,000 mPa·s.

For example, polybasic acids, fatty acids, and polyhydric alcohols are used to synthesize alkyd resins. Examples of polybasic acids include phthalic anhydride, isophthalic acid, terephthalic acid, benzoic acid, rosin, tetrahydrophthalic anhydride, maleic anhydride, adipic acid, and succinic acid. Examples of fatty acids include palmitic acid, stearic acid, oleic acid, linoleic acid, and linolenic acid. Examples of polyhydric alcohols include glycerin, pentaerythritol, ethylene glycol, propylene glycol, neopentyl glycol, and trimethylolpropane. By reacting these in a desired ratio, an alkyd resin can be obtained.
The weight average molecular weight of the alkyd resin can be, for example, 10,000 to 200,000. The weight average molecular weight can be calculated as a polystyrene-equivalent molecular weight by calculating the molecular weight at each elution time from the elution curve of monodisperse polystyrene using gel permeation chromatography (GPC).

The polyamide resin is, for example, a diamine selected from ethylenediamine, isophoronediamine, hexamethylenediamine, 1,12-dodecanediamine, 2-methylpentamethylenediamine, 2-ethyltetramethylenediamine, 1,2-diaminocyclohexane, 1,3-diaminocyclohexane, cis-1,4-diaminocyclohexane, and trans-1,4-diaminocyclohexane, and a phthalic acid/phthalic anhydride, isophthalic acid, terephthalic acid, 2,6-naphthalenedicarboxylic acid, succinic acid/succinic anhydride, , glutaric acid, adipic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, a mixture of succinic acid/glutaric acid/adipic acid, cyclohexanedicarboxylic acid, dimethyl isophthalate, dimethyl phthalate, dimethyl terephthalate, dimethyl 2,6-naphthalenedicarboxylate, diethyl oxalate, dimethyl adipate, dimethyl glutarate, and methyl succinate, or a dicarboxylic acid or an ester or anhydride derivative thereof.
The weight average molecular weight of the polyamide resin is, for example, 10,000 to 200,000.
The weight average molecular weight of the polyamide resin can be calculated as the molecular weight in terms of polymethyl methacrylate by calculating the molecular weight at each elution time from the elution curve of monodispersed polymethyl methacrylate using gel permeation chromatography (GPC).

Styrene-acrylic resins can be obtained by copolymerizing a styrene-based monomer and a (meth)acrylic acid-based monomer. The styrene-acrylic resin also includes a styrene-methacrylic resin. Examples of the styrene-based monomer include styrene, α-methylstyrene, o-methylstyrene, p-methylstyrene, and the like, either alone or in mixture, with styrene being preferred. Examples of the (meth)acrylic acid-based monomer include acrylic acid, methacrylic acid, and the like, with methacrylic acid being preferred.
The weight average molecular weight of the styrene-acrylic resin is, for example, 140000 to 400000. The weight average molecular weight can be determined in the same manner as for the alkyd resin.

Butyl methacrylate-methyl methacrylate resin is a copolymer obtained by copolymerizing butyl methacrylate and methyl methacrylate in any ratio, and typically has a weight average molecular weight of 20,000 to 200,000. The weight average molecular weight can be determined in the same manner as for the alkyd resins described above.

The polyester resin can usually be obtained by subjecting a polybasic acid and a polyhydric alcohol to an esterification reaction by a known method.
The polybasic acid is a compound having two or more carboxyl groups in one molecule, and examples thereof include aromatic polybasic acids and their anhydrides, such as terephthalic acid, isophthalic acid, phthalic acid, naphthalenedicarboxylic acid, 4,4'-biphenyldicarboxylic acid, and diphenylmethane-4,4'-dicarboxylic acid; alicyclic dicarboxylic acids and their anhydrides, such as hexahydroisophthalic acid, hexahydroterephthalic acid, hexahydrophthalic acid, and tetrahydrophthalic acid; adipic acid, sebacic acid, suberic acid, succinic acid, and glutamic acid. and aliphatic polybasic acids and anhydrides thereof, such as dicarboxylic acid, maleic acid, chloromaleic acid, fumaric acid, dodecanedioic acid, pimelic acid, azelaic acid, itaconic acid, citraconic acid, and dimer acid; lower alkyl esters, such as methyl esters and ethyl esters, of these dicarboxylic acids; and trivalent or higher polybasic acids, such as trimellitic acid, trimellitic anhydride, pyromellitic acid, pyromelic anhydride, trimesic acid, methylcyclohexene tricarboxylic acid, and tetrachlorohexene polybasic acid and anhydrides thereof.
The polyhydric alcohol is a compound having two or more hydroxyl groups in one molecule, such as ethylene glycol, propylene glycol, diethylene glycol, trimethylene glycol, tetraethylene glycol, triethylene glycol, dipropylene glycol, 1,4-butanediol, 1,3-butanediol, 2,3-butanediol, 1,2-butanediol, 3-methyl-1,2-butanediol, 1,2-pentanediol, 1,5-pentanediol, 1,4-pentanediol, 2,4-pentanediol, dihydric alcohols such as hexanediol, 2,3-dimethyltrimethylene glycol, tetramethylene glycol, 3-methyl-4,3-pentanediol, 3-methyl-4,5-pentanediol, 2,2,4-trimethyl-1,3-pentanediol, 1,6-hexanediol, 1,5-hexanediol, 1,4-hexanediol, 2,5-hexanediol, neopentyl glycol, and hydroxypivalic acid neopentyl glycol ester; addition of lactones such as ε-caprolactone to these dihydric alcohols; polyether diols such as alkylene oxide adducts of bisphenol A, polyethylene glycol, polypropylene glycol, and polybutylene glycol; α-olefin epoxides such as propylene oxide and butylene oxide, and monoepoxy compounds such as Cardura E10 [product name, synthetic highly branched saturated fatty acid glycidyl ester, manufactured by Shell Chemical Co., Ltd.]; trihydric or higher alcohols such as glycerin, trimethylolpropane, trimethylolethane, diglycerin, triglycerin, 1,2,6-hexanetriol, pentaerythritol, dipentaerythritol, sorbitol, and mannite; polylactone polyols obtained by adding lactones such as ε-caprolactone to these trihydric or higher alcohols; and alicyclic polyhydric alcohols such as 1,4-cyclohexanedimethanol, tricyclodecanedimethanol, hydrogenated bisphenol A, hydrogenated bisphenol F, hydrogenated bisphenol A, and hydrogenated bisphenol F.
The number average molecular weight of the polyester resin is, for example, 5,000 to 100,000.
The number average molecular weight of the polyester resin can be calculated as a polystyrene-equivalent molecular weight by calculating the molecular weight at each elution time from the elution curve of monodisperse polystyrene using gel permeation chromatography (GPC).

The weight molecular weight of the above alkyd resin, polyamide resin, styrene-acrylic resin, butyl methacrylate-methyl methacrylate resin and polyester resin can be controlled by the reaction temperature in the polymerization step, the residence time, the type and amount of polymerization initiator, the type and amount of chain transfer agent, the type and amount of solvent used during polymerization, etc. In addition, the above alkyd resin, polyamide resin, styrene-acrylic resin, butyl methacrylate-methyl methacrylate resin and polyester resin can all be commercially available products used in the technical fields of paint and printing.
Among the resins listed above, ethyl cellulose is preferably used. The resin composition does not contain nitrocellulose, which is used as a conventional coating agent, and therefore does not produce undesirable flavors that are generated when non-combustion heat-not-burn tobacco is heated. Usually, nitrocellulose is obtained by treating cellulose with a mixed acid of nitric acid and sulfuric acid. This nitrocellulose is decomposed by heating to produce nitric acid, and the nitric acid reacts with minor alkaloids in the tobacco raw material to produce TSNA. This TSNA is the cause of undesirable flavors. TSNA is a general term for tobacco-specific nitrosamines, and is represented by N'-nitrosonornicotine (NNN), 4-(N-nitrosomethylamino)-1-(3-pyridyl)-1-butanone (NNK), N'-nitrosoanatabine (NAT), and N'-nitrosoanabasine (NAB).

The resin composition contains a plasticizer. When the resin composition contains a plasticizer, the applicability of the resin composition to the chip paper can be improved. In addition, when the resin composition contains a plasticizer, it contributes to improving the flexibility of the resin composition, preventing cracks on the coated surface, preventing curling of the coated surface, and increasing the gloss of the coated surface. In particular, the prevention of curling of the coated surface is significantly improved when the resin composition contains a resin other than nitrocellulose, such as ethyl cellulose. An example of the plasticizer is triacetin.
The resin composition may also contain a solvent for dissolving the resin and the plasticizer.
The weight proportion of the resin in the resin composition is, for example, 5 to 40 parts by weight, and preferably 10 to 30 parts by weight, based on 100 parts by weight of the resin composition.
The ratio of the resin to the plasticizer in the resin composition is preferably, for example, 0.05 to 0.5, more preferably 0.1 to 0.3, in terms of the weight ratio of the plasticizer when the weight ratio of the resin is taken as 1.

The amount of the resin composition applied to the tipping paper is preferably 0.0001 to 3% by weight, in terms of the amount of solids in the tipping paper attributable to the resin composition. This amount of coating can impart a desired appearance to the wrapping part of the non-combustion heat-not-burn tobacco, or can provide a good base for imparting such a desired appearance.
When the above resin composition contains a colorant component such as a pigment or dye, or a thermal developer, as described below, it can impart a desired appearance to the wrapping part of a non-combustion heat-not-burn tobacco, and even when it does not contain the above colorant component or thermal developer, it can form a base for imparting a desired appearance to the tipping paper. Furthermore, by applying the above resin composition not as a base but to an area that has been printed in advance by a separate means, it can play a role in preventing the printed area from peeling or fading.
The coating of the solid content resulting from the resin composition in the region on the chip paper where the resin composition is applied may or may not be uniform in thickness and distribution. In addition, a preferred embodiment is one in which the region coated with the resin composition is composed of a plain part and a part consisting of one or more of color, letters, and patterns. To realize this embodiment, a single resin composition for imparting one or more of color, letters, and patterns may be applied once, or two or more different resin compositions may be applied in separate applications.

The resin composition may contain a colorant component. The colorant component may be, for example, one or more selected from the group consisting of pigments and dyes.
Examples of pigments include titanium dioxide, calcium carbonate, iron oxide, mica, aluminum, copper, silicon dioxide, and the like.
Dyes include C.I. Pigment Yellow 42, C.I. Pigment Yellow 100, C.I. Pigment Black 11, C.I. Pigment Blue 78, C.I. Pigment Yellow 139, Quinoline Yellow, C.I. Pigment Black 7, C.I. Pigment Red 48:1, C.I. Pigment Red 48:3, C.I. Pigment Yellow 185, C.I. Pigment Blue 15, C.I. Pigment Green 7, C.I. Pigment Red 172, C.I. Pigment Red 57:1, C.I. Pigment Yellow 104, C.I. Pigment Blue 63, C.I. Pigment Violet 23, C.I. Pigment Violet 37, and the like.
The content of the dye component in the resin composition varies depending on the type of dye component, but can be from 0.00005% by weight to 0.8% by weight.
The content of the pigment in the resin composition varies depending on the type of pigment, but examples of the pigment content include 0.8% by weight or less for titanium dioxide, 0.7% by weight or less for calcium carbonate, 0.09% by weight or less for iron oxide or mica, and 0.01% by weight or less for aluminum, copper or silicon dioxide.
The content of the dye in the resin composition varies depending on the type of dye, but is preferably 0.01% by weight or less for C.I. Pigment Yellow 100, 0.005% by weight or less for C.I. Pigment Black 11, C.I. Pigment Blue 78, C.I. Pigment Yellow 139, or Quinoline Yellow, 0.001% by weight or less for C.I. Pigment Black 7, C.I. Pigment Red 48:1, C.I. Pigment Red 48:3, or C.I. Pigment Yellow 185, 0.0005% by weight or less for C.I. Pigment Blue 15, C.I. Pigment Green 7, C.I. Pigment Red 172, C.I. Pigment Red 57:1, or C.I. Pigment Yellow 104, and 0.0005% by weight or less for C.I. Pigment Green 7, C.I. Pigment Red 172, C.I. Pigment Red 57:1, or C.I. Pigment Yellow 104. In the case of C. I. Pigment Blue 63, C. I. Pigment Violet 23, or C. I. Pigment Violet 37, the amount may be 0.0001% by weight or less.

The resin composition may contain a thermal color developer. A thermal color developer is a substance that originally had no color but becomes colored when heated. Specifically, it is a substance that becomes colored when heated in a non-combustion heat-not-burn tobacco.
Examples of the thermal color developer include one or more selected from organic acids or their salts, monosaccharides, disaccharides, polysaccharides, and amino acids. When a combination of a plurality of types of these is used, examples include a combination of an organic acid or its salt with one or more sugars selected from monosaccharides, disaccharides, and polysaccharides (including a combination of an organic acid or its salt with a monosaccharide, a combination of an organic acid or its salt with a disaccharide, and a combination of an organic acid or its salt with a polysaccharide), a combination of a monosaccharide and an amino acid, a combination of a monosaccharide and a polysaccharide, etc.
The concentration of the heat-sensitive color developer in the resin composition is not particularly limited, and may be, for example, 0.01 to 3% by weight, and preferably 0.2 to 2% by weight.
The organic acid or its salt may be one or more selected from acetic acid, potassium acetate, sodium acetate, citric acid, potassium citrate, sodium citrate, tartaric acid, potassium tartrate, sodium tartrate, phosphoric acid, sodium phosphate, potassium phosphate, malic acid, sodium malate, magnesium malate, lactic acid, and calcium lactate. It is believed that the use of these organic acids or their salts reduces the amount of heat required for the oxidation reaction of the pulp of the chip paper base paper, thereby causing color development.
The monosaccharide is preferably one or more selected from the group consisting of fructose, galactose, and glucose, and the disaccharide is preferably one or more selected from the group consisting of maltose, lactose, and sucrose.
The polysaccharide is preferably one or more selected from carboxymethylcellulose, carrageenan, pectin, and starch.
When the above-mentioned monosaccharides, disaccharides, and polysaccharides are used, it is believed that color development occurs due to a caramelization reaction.
The amino acid is preferably one or more selected from the group consisting of valine, leucine, isoleucine, glutamine, alanine, asparagine and arginine. These amino acids are thought to develop color through a Maillard reaction with a carbonyl group contained in the pulp of the cigarette paper base paper.
The aqueous solutions of the above-mentioned heat-sensitive color developers are transparent in appearance. Furthermore, adding these heat-sensitive color developers to the base paper of the tipping paper does not change the color of the tipping paper. In other words, the above-mentioned heat-sensitive color developers are transparent in appearance before heating. This allows a color that was not present on the base paper of the tipping paper before using the non-combustion heat-not-burn tobacco to appear on the tipping paper when heated during use.

The method of applying the resin composition to the chip paper is not particularly limited, and a general application method can be applied. The resin composition can be used as an aqueous solution or an ethyl acetate solution, and such an aqueous solution or ethyl acetate solution can be applied to the chip paper according to the embodiment of the present invention by using a suitable printing method such as gravure printing. The resin composition may be applied to the chip paper according to the embodiment of the present invention by known means other than printing, such as a method of applying opaque ink by inkjet printing, a spraying method, or an impregnation method.
Furthermore, the resin composition must be coated on at least a portion of the surface of the tipping paper that constitutes the outer surface of the non-combustion heated tobacco product, but may also be coated on the inner surface.

The content of solids in the tip paper originating from the resin composition can be measured by the following spectrophotometric measurement method.
First, a standard sample for a calibration curve is prepared by the method described below, and absorbance measurement is performed, and a calibration curve is created from the absorbance measurement results of the standard sample for a calibration curve according to ASTM D3133-01. Then, a measurement sample is prepared by the method described below, and absorbance measurement is performed. From the above calibration curve and the results of the absorbance measurement of the measurement sample, the weight content of solids originating from the resin composition in the measurement sample can be obtained.

<Preparation of standard samples for calibration curve>
(1) Approximately 6 g of a standard sample (resin composition before coating) is weighed out into a container such as an eggplant-shaped flask, and then the volatile components are removed using an evaporator to concentrate the sample.
(2) The obtained non-volatile components are dissolved in acetone and transferred to a 100 ml measuring flask using a pipette, and the solution is made up to 100 ml with acetone.
(3) Prepare four 50 ml eggplant-shaped flasks, measure out 0, 1, 3, and 5 ml of the solution obtained in (2) into each flask, and add 10, 9, 7, and 5 ml of acetone so that the total amount is 10 ml. Furthermore, add 10 ml of 10% KOH to all of these eggplant-shaped flasks, set them on cooling tubes, and reflux them in a 60°C thermostatic water bath for 1 hour.
(4) After refluxing, the mixture is cooled to room temperature on ice and filtered using filter paper. The filtrate obtained is then placed in a 50-mL measuring flask and made up to volume with a mixed solution of acetone/water (2/1 by weight).

<Preparation of measurement sample>
(1) The tipping paper that constitutes the wrapping part of a non-combustion heating tobacco is peeled off and shredded, and the shredded tipping paper is placed in a container such as an Erlenmeyer flask, 100 ml of acetone is added, and ultrasonic extraction is performed for 30 minutes.
(2) The extract is transferred to a 300 ml eggplant-shaped flask, and the acetone is evaporated using an evaporator. Then, 10 ml of acetone and 10 ml of 10% KOH are added, and the mixture is refluxed for 1 hour in a 60° C. water bath.
(3) The eggplant-shaped flask is cooled to room temperature on ice and filtered. The filtrate is then placed in a 50 ml measuring flask and made up to volume with a mixed solution of acetone/water (2/1 by weight).

<Tobacco rod part>
The configuration of the tobacco rod portion 10 is not particularly limited and may be of a general form. For example, a tobacco filler wrapped in cigarette paper may be used.

[Tobacco filling]
The composition of the tobacco filling material is not particularly limited, but examples include one composed of a composition containing tobacco shreds (hereinafter also referred to as the first tobacco filling material), one composed of multiple tobacco sheets as described below (hereinafter also referred to as the second tobacco filling material), or one composed of a single tobacco sheet (hereinafter also referred to as the third tobacco filling material).
The tobacco rod portion preferably has a columnar shape, and in this case, the aspect ratio, which is expressed as the height of the tobacco rod portion in the major axis direction relative to the width of the bottom surface of the tobacco rod portion, is preferably 1 or greater.
The shape of the bottom surface is not limited, and may be polygonal, rounded polygonal, circular, elliptical, etc., and the width is the diameter when the bottom surface is circular, the major axis when the bottom surface is elliptical, and the diameter of the circumscribed circle or the major axis of the circumscribed ellipse when the bottom surface is polygonal or rounded polygonal. For example, in the embodiment shown in Figures 1 to 3, the bottom surface is a circle. Thus, the diameter is the width, and the length perpendicular to this is the height. The height of the tobacco filler constituting the tobacco rod is preferably about 12 to 70 mm, and the width is preferably about 4 to 9 mm.
The tobacco rod portion may have a fitting portion with a heater member or the like for heating the non-combustion heat-not-burn tobacco.

First, the first filling will be described. The material of the tobacco shreds contained in the first filling is not particularly limited, and known materials such as lamina and backbone can be used. In addition, the material may be a shredded sheet (hereinafter simply referred to as a homogenized sheet) made by crushing dried tobacco leaves to an average particle size of 20 to 200 μm and homogenizing the shredded leaves. Furthermore, the homogenized sheet may be a so-called strand type, in which the homogenized sheet having a length approximately equal to the longitudinal direction of the tobacco rod is shredded approximately horizontally to the longitudinal direction of the tobacco rod and filled into the tobacco rod. The width of the tobacco shreds is preferably 0.5 to 2.0 mm in terms of filling the tobacco rod. In the case of a tobacco rod having a circumference of 22 mm and a length of 20 mm, the content of the tobacco filling in the tobacco rod may be 200 to 800 mg/rod, and preferably 250 to 600 mg/rod. Various types of tobacco can be used for the tobacco leaves used to prepare the tobacco shreds and homogenized sheet. Examples of the tobacco include flue-cured tobacco, burley, orient, native tobacco, other Nicotiana tabacum varieties, Nicotiana rustica varieties, and mixtures thereof. The mixtures can be appropriately blended to obtain the desired flavor. Details of the tobacco varieties are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, 2009.3.31". There are several conventional methods for producing the homogenized sheet, that is, the method for grinding tobacco leaves and processing them into a homogenized sheet. The first method is to produce a paper-making sheet using a papermaking process. The second method is to mix a suitable solvent such as water with the ground tobacco leaves to homogenize them, and then cast the homogenized material thinly on a metal plate or metal plate belt and dry it to produce a cast sheet. The third method is to mix a suitable solvent such as water with the ground tobacco leaves to homogenize them, and extrude them into a sheet to produce a rolled sheet. Details of the types of homogenized sheets are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, 2009.3.31".

The moisture content of the tobacco filler is, for example, 10 to 15% by weight, and preferably 11 to 13% by weight, based on the total weight of the tobacco filler. Such a moisture content suppresses the occurrence of rolling stains and improves the suitability for rolling during the production of a tobacco rod.
There are no particular limitations on the size of the tobacco shreds contained in the first tobacco filler or the method for preparing the same. For example, dried tobacco leaves shredded to a width of 0.5 to 2.0 mm may be used.
In addition, when using ground material for a homogenized sheet, dried tobacco leaves may be ground and homogenized to an average particle size of about 20 to 200 μm, processed into a sheet, and then chopped into pieces with a width of 0.5 to 2.0 mm.

The first tobacco filling includes an aerosol-generating substrate that generates aerosol smoke. The type of the aerosol-generating substrate is not particularly limited, and various extracts from natural products and/or their components can be selected depending on the application. Examples of the aerosol-generating substrate include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
The content of the aerosol-generating substrate in the first tobacco packing is not particularly limited, and from the viewpoint of generating sufficient aerosol while imparting a good smoking taste, it is usually at least 5% by weight, preferably at least 10% by weight, and usually at most 50% by weight, preferably 15 to 25% by weight, relative to the total amount of the tobacco packing.

The first tobacco filling may contain a flavoring. The type of flavoring is not particularly limited, and from the viewpoint of imparting a good smoking taste, the following flavorings may be used: acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, Peru balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, β -Carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, konjac oil, coriander oil, cuminaldehyde, davana oil, δ-decalactone, γ-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3, 7-Dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanoate, ethyl oleate, ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3,(5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl- 2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract, gamma-heptalactone, gamma-hexalactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenylhexyl acetate, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-ol On, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, beta-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpeneless oil, licorice extract, linalool, linalyl acetate, lovage root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, paramethoxybenzaldehyde, methyl-2-pyrrolyl ketone, anthraquinone, Methyl ranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, honeysuckle, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentadecalactone, peppermint oil, petitgrain paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenyl guaethol, acetic acid Propyl, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, alpha-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl Examples of the fragrance include ethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), and ethyl-2-(p-menthane-3-carboxamide)acetate (WS-5), and menthol is particularly preferred. These fragrances may be used alone or in combination of two or more.

The content of flavoring in the first tobacco filling is not particularly limited, and from the viewpoint of imparting a good smoking taste, it is usually 10,000 ppm or more, preferably 20,000 ppm or more, more preferably 25,000 ppm or more, and is usually 50,000 ppm or less, preferably 40,000 ppm or less, more preferably 33,000 ppm or less.

The filling density of the first tobacco filling material is not particularly limited, but from the viewpoint of ensuring the performance of the non-combustion heated tobacco and imparting a good smoking taste, it is usually 250 mg/ ^cm3 or more, preferably 320 mg/ ^cm3 or more, and usually 800 mg/cm3 ^or less, preferably 600 mg/cm3 ^or less.
The first tobacco filler is wrapped in a cigarette paper so that the first tobacco filler is on the inside to form a tobacco rod.

The second tobacco filler is composed of a plurality of tobacco sheets arranged concentrically. In the present invention, "arranged concentrically" refers to an arrangement in which the centers of all the tobacco sheets are located at approximately the same position. In the present invention, a "sheet" refers to a shape having a pair of approximately parallel main surfaces and a side surface. The second filler is composed of a plurality of tobacco sheets wound concentrically in a direction perpendicular to the longitudinal direction of the non-combustion heating tobacco.
Examples of the sheet base material include tobacco materials such as tobacco powder, and tobacco materials are particularly preferred. A tobacco sheet is preferably a base sheet of tobacco material carrying a component capable of generating flavor as necessary. The tobacco sheet generates an aerosol when heated. An aerosol source such as glycerin, propylene glycol, or a polyol such as 1,3-butanediol is added as the aerosol-generating base material. The amount of such an aerosol-generating base material added is preferably 5 to 50% by weight, more preferably 15 to 25% by weight, based on the dry weight of the tobacco sheet.

The tobacco sheet as a material before being concentrically arranged will be described.
The tobacco sheet can be appropriately manufactured by a known method such as papermaking, slurry, rolling, etc. The homogenized sheet described in the first tobacco filler can also be used.
In the case of papermaking, tobacco can be produced by a method including the following steps: 1) Dried tobacco leaves are roughly crushed and extracted with water to separate the water extract and residue. 2) The water extract is dried under reduced pressure and concentrated. 3) Pulp is added to the residue, which is then fiberized in a refiner and made into paper. 4) A concentrated liquid of the water extract is added to the paper-made sheet and dried to produce 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, the tobacco leaf can be produced by a method including the following steps: 1) mixing water, pulp, and a binder with crushed tobacco leaves; 2) spreading (casting) the mixture thinly and drying it. In this case, a step of irradiating the slurry of water, pulp, and a binder with crushed tobacco leaves with ultraviolet light or X-rays to remove some of the components such as nitrosamines may be added.

Alternatively, as described in WO 2014/104078, a nonwoven tobacco sheet may be used that is manufactured by a method that includes the following steps: 1) mixing powdered tobacco leaves with a binder; 2) sandwiching the mixture between nonwoven fabrics; and 3) forming the laminate into a certain shape by thermal welding to obtain a nonwoven tobacco sheet.
The type of tobacco leaf material used in each of the above-mentioned methods can be the same as that explained for the first filling material.
The composition of the tobacco sheet is not particularly limited, but for example, the content of the tobacco raw material (tobacco leaves) is preferably 50 to 95% by weight based on the total weight of the tobacco sheet. The tobacco sheet may also contain a binder, and examples of such binders include guar gum, xanthan gum, CMC (carboxymethylcellulose), CMC-Na (sodium salt of carboxymethylcellulose), and the like. The amount of the binder is preferably 1 to 20% by weight based on the total weight of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of the additives include fillers such as pulp. In the present invention, a plurality of tobacco sheets are used, and the tobacco sheets may all have the same composition or physical properties, or some or all of the tobacco sheets may have different compositions or physical properties.

The second tobacco filler can be produced by preparing a plurality of tobacco sheets of different widths, stacking them so that the width decreases from the bottom to the top, and rolling the stack through a rolling tube. According to this production method, the plurality of tobacco sheets extend in the longitudinal direction and are arranged concentrically about the longitudinal axis. A fitting portion extending in the longitudinal direction may be formed between the longitudinal axis and the innermost tobacco sheet.
In this manufacturing method, it is preferable that the laminate is prepared so that non-contact portions are formed between adjacent tobacco sheets after rolling and forming.
When there are non-contact portions (gaps) between multiple tobacco sheets, where the tobacco sheets are not in contact with each other, a flavor flow path can be secured to improve the delivery efficiency of the flavor components, while high heat transfer efficiency can be ensured because heat from the heater can be transferred to the outer tobacco sheet via the contact portions of the multiple tobacco sheets.

In order to provide non-contact portions between multiple tobacco sheets where the tobacco sheets do not come into contact, for example, methods of preparing a laminate include using an embossed tobacco sheet, laminating adjacent tobacco sheets without bonding their entire surfaces together, bonding adjacent tobacco sheets together by bonding only a portion of the sheets together, or lightly bonding adjacent tobacco sheets together by bonding their entire surfaces or a portion of the sheets together so that they can be peeled off after rolling and molding.
When preparing a tobacco rod including cigarette paper, the cigarette paper may be placed at the bottom of the layered product.
Alternatively, the fitting portion can be formed by placing a cylindrical dummy such as a mandrel on the top of the laminate to form the second tobacco filler, and then removing the dummy.
The thickness of each tobacco sheet is not limited, but is preferably 200 to 600 μm in view of the balance between heat transfer efficiency and strength. The thickness of each tobacco sheet may be the same or different.
The number of tobacco sheets constituting the second tobacco filler is not particularly limited, but may be, for example, two, three, four, five, or six.

The third tobacco filler is composed of a single folded tobacco sheet. The sheet may be a so-called gathered sheet, which has a length approximately equal to the length of the tobacco rod in the longitudinal direction and is folded back multiple times horizontally to the longitudinal direction of the tobacco rod before being filled. The thickness of the sheet is preferably 200 to 600 μm in view of the balance between heat transfer efficiency and strength.
The sheet base material used in the third tobacco packing can be the same as that used in the second tobacco packing.

[Scroll paper]
The composition of the cigarette paper is not particularly limited, and a general cigarette paper can be used. For example, the base paper used for the cigarette paper can be cellulose fiber paper, and more specifically, hemp, wood, or a mixture thereof. Note that the "cigarette paper" referred to here is used for wrapping the tobacco filler. The drawings in this specification do not show this cigarette paper.
The cigarette paper may contain a filler, and the type of filler is not limited, and examples of the filler include metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide and aluminum oxide, metal sulfates such as barium sulfate and calcium sulfate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, and gypsum. In particular, it is preferable that the cigarette paper contains calcium carbonate from the viewpoints of improving whiteness and opacity and increasing the heating rate.
The blending ratio of the filler in the cigarette paper is not particularly limited, and is usually 1 to 50% by weight, preferably 5 to 45% by weight, more preferably 10 to 42% by weight, and particularly preferably 20 to 40% by weight. For example, the content of calcium carbonate can be determined by measuring the ash content, or by quantifying calcium ions after extraction.
If the content is below the lower limit of the above range, the wrapping paper will be prone to scorching, whereas if the content is above the upper limit, the strength of the wrapping paper will be significantly reduced, and the winding properties may be impaired.

Various auxiliaries other than the base paper and fillers may be added to the cigarette paper. For example, a water resistance improver may be added to improve water resistance. The water resistance improver includes a wet strength agent (WS agent) and a sizing agent. Examples of the wet strength agent include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of the sizing agent include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), highly saponified polyvinyl alcohol with a saponification degree of 90% or more, etc.
As an auxiliary, a paper strength enhancer may be added, for example, polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, etc. In particular, it is known that the use of a very small amount of oxidized starch improves the air permeability (JP 2017-218699 A).
The wrapping paper may also be appropriately coated.

A coating agent may be added to at least one of the two surfaces of the wrapping paper, the front and back. There are no particular limitations on the coating agent, but a coating agent that can form a film on the surface of the paper and reduce liquid permeability is preferred. Examples include alginic acid and its salts (e.g., sodium salts), polysaccharides such as pectin, cellulose derivatives such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, and nitrocellulose, starch and its derivatives (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch, and ester derivatives such as starch acetate, starch phosphate, and starch octenyl succinate).

The basis weight of the wrapping paper is usually 20 to 45 g/m ² , and preferably 20 to 45 g/m ^2. Within this range, appropriate strength and winding properties can be maintained.
The air permeability of the cigarette paper is usually 0 to 120 Coresta units, preferably 5 to 100 Coresta units, and more preferably 10 to 80 Coresta units. Within this range, appropriate strength and smoking taste can be maintained.

<Mouthpiece section>
The configuration of the non-combustion heat-not-burn tobacco product 1 is not particularly limited and may be of a general form. For example, as shown in Figures 1 and 2, the mouthpiece may be formed from a single member, or as shown in Figure 3, the mouthpiece may be composed of multiple segments with a cooling section 14 on the tobacco rod side and a filter section 15 on the mouthpiece side.

[Cooling section]
The configuration of the cooling unit 14 is not particularly limited as long as it has the function of cooling the mainstream smoke of the tobacco, and an example of the cooling unit 14 is a cardboard processed into a cylindrical shape. In this case, the inside of the cylinder is hollow, and the vapor containing the aerosol-generating base material and the tobacco flavor component is cooled by contacting with the air in the cavity.

The non-combustion heat-not-burn tobacco 1 may have an opening (not shown) for taking in air from the outside in the cooling section 14 and a part of the tipping paper 12 covering the cooling section 14. The presence of such an opening allows air to flow into the cooling section 14 from the outside during use, and the vapor containing the aerosol-generating base material and the tobacco flavor component generated by heating the tobacco rod is liquefied by contacting the air from the outside and lowering in temperature, thereby accelerating the generation of aerosol. In addition, when the cooling section 14 has a plurality of openings, the plurality of openings are arranged in the circumferential direction of the outer circumferential surface of the cooling section 14. The number of openings arranged in the circumferential direction is not particularly limited, and two or more openings may be present. Note that the cooling section 14 may have a cylindrical shape having a cavity, but is not limited to this shape.
The apertures preferably have a diameter of 100 to 1000 μm, more preferably 300 to 800 μm. The apertures are preferably substantially circular or substantially elliptical, and in the case of a substantially elliptical shape, the above diameter indicates the major axis.

In addition, the tipping paper 12 and the resin composition 13 may have holes so that the openings of the cooling section 14 pass through them, or they may not have holes, but it is preferable for them to have holes from the viewpoint of promoting the cooling effect.
Furthermore, the openings are arranged circumferentially on the outer peripheral surface of the cooling portion 14, but the number of circumferential arrangements (also referred to as "circumferential arrangements") is not particularly limited, and there may be two or more openings.
Furthermore, a sheet-shaped member such as paper, polymer film, or metal foil that has been gathered may be filled inside the cooling section 14. In this case, the specific heat of these members can be used to cool the steam.
The height of the cooling portion 14 in the major axis direction is not particularly limited, but from the viewpoint of ensuring the cooling function, it is usually 5 to 40 mm, preferably 10 to 35 mm, and more preferably 15 to 30 mm.

[Filter section]
The configuration of the filter section 15 is not particularly limited as long as it has a function as a general filter, and an example of the filter section 15 is a cylindrical cellulose acetate tow. The single yarn fineness and total fineness of the cellulose acetate tow are not particularly limited, but in the case of a filter section with a circumference of 22 mm, the single yarn fineness is preferably 5 to 12 g/9000 m and the total fineness is preferably 12000 to 30000 g/9000 m. The cross-sectional shape of the fibers of the cellulose acetate tow may be a Y cross section or an R cross section. In the case of a filter filled with cellulose acetate tow, 5 to 10% by weight of triacetin may be added to the cellulose acetate tow to improve the filter hardness.
In FIG. 3, the filter section 15 is composed of a single segment, but it may be composed of multiple segments. When composed of multiple segments, for example, a hollow segment such as a center hole is arranged on the upstream side (tobacco rod side), and an acetate filter with a mouth section filled with cellulose acetate tow is arranged as a segment on the downstream side (user's mouth end side). According to such an embodiment, unnecessary loss of the generated aerosol can be prevented, and the appearance of the non-combustion heat-not-burn tobacco can be improved. In addition, from the viewpoint of the change in the sensation of smoking and the comfort of holding it in the mouth, an acetate filter may be arranged on the upstream side, and a hollow segment such as a center hole may be arranged on the downstream side. Note that a paper filter filled with sheet-like pulp paper may be used instead of the acetate filter.
In addition, in the manufacture of the filter, the adjustment of the airflow resistance and the addition of additives (known adsorbents, fragrances, fragrance-retaining materials, etc.) can be appropriately designed.

<Electrically heated tobacco products>
One embodiment of an electrically heated tobacco product is an electrically heated tobacco product comprising an electrically heated device having a heater member, a battery unit that serves as a power source for the heater member, and a control unit for controlling the heater member, and the above-mentioned non-combustion heated tobacco inserted so as to contact the heater member.
The electrically heated tobacco product may be configured to heat the outer peripheral surface of a non-combustion heated tobacco product as shown in Fig. 4, or may be configured to heat the tobacco rod portion of a non-combustion heated tobacco product from the inside as shown in Fig. 5. Note that the electrically heated device 2 shown in Figs. 4 and 5 has an air introduction hole, but this is not shown here. The electrically heated tobacco product will be described below with reference to Fig. 4.
The electrically heated tobacco product 3 is used by inserting the non-combustion heated tobacco product 1 described above into contact with the heater member 23 arranged inside the electrically heated device 2.
The electrically heated device 2 has a battery unit 20 and a control unit 21 inside a body 22 made of, for example, resin.
When the non-combustion heated tobacco 1 is inserted into the electrically heated device 2, the outer surface of the tobacco rod portion comes into contact with the heater member 23 of the electrically heated device 2, and eventually the entire outer surface of the tobacco rod portion and a part of the outer surface of the winding portion come into contact with the heater member.
The heater member 23 of the electrically heated device 2 generates heat under the control of the control unit 20. The heat is transmitted to the tobacco rod portion of the non-combustion heat-not-burn tobacco, causing the aerosol-generating base material, flavor components, and the like contained in the tobacco filler in the tobacco rod portion to volatilize.

The heater member may be, for example, a sheet heater, a flat heater, or a cylindrical heater. The sheet heater is a flexible sheet-shaped heater, and examples thereof include a heater including a film (thickness: about 20 to 225 μm) of a heat-resistant polymer such as polyimide. The flat heater is a rigid flat heater (thickness: about 200 to 500 μm), and examples thereof include a heater having a resistance circuit on a flat substrate and using that part as a heat generating part. The cylindrical heater is a hollow or solid cylindrical heater (thickness: about 200 to 500 μm), and examples thereof include a heater having a resistance circuit on the outer circumferential surface of a metal cylinder and using that part as a heat generating part. In addition, examples thereof include rod-shaped heaters and cone-shaped heaters made of metal or the like that have a resistance circuit inside and use that part as a heat generating part. The cross-sectional shape of the cylindrical heater may be a circle, an ellipse, a polygon, a rounded polygon, or the like.
In the case of an embodiment in which the outer peripheral surface of a non-combustion heat-not-burn tobacco is heated as shown in Fig. 4, the above-mentioned sheet-shaped heater, flat plate-shaped heater, and cylindrical heater can be used. On the other hand, in the case of an embodiment in which the tobacco rod part of a non-combustion heat-not-burn tobacco is heated from the inside as shown in Fig. 5, the above-mentioned flat plate-shaped heater, columnar heater, and cone-shaped heater can be used.
The length of the heater member in the major axis direction can be within the range of L±5.0 mm, where the length of the tobacco rod portion in the major axis direction is L mm. From the viewpoint of sufficient heat transfer to the tobacco rod portion and sufficient volatilization of the aerosol-generating base material and flavor components contained in the tobacco filler, i.e., aerosol delivery, the length of the heater member in the major axis direction is preferably L mm or more, and from the viewpoint of suppressing the generation of components that have undesirable effects on the smoking taste, etc., the length is preferably L+0.5 mm or less, L+1.0 mm or less, L+1.5 mm or less, L+2.0 mm or less, L+2.5 mm or less, L+3.0 mm or less, L+3.5 mm or less, L+4.0 mm or less, L+4.5 mm or less, or L+5.0 mm or less.

The heating intensity, such as the heating time and heating temperature of the non-combustion heat-not-burn tobacco by the heater member, can be preset for each electrically heated tobacco product. For example, the heating intensity can be preset so that after the non-combustion heat-not-burn tobacco is inserted into the electrically heated device, pre-heating is performed for a certain period of time, so that the temperature of the outer circumferential surface of a predetermined position of the portion of the non-combustion heat-not-burn tobacco inserted into the device reaches X (°C), and the temperature is then maintained at a constant temperature of X (°C) or less.
From the viewpoint of the aerosol delivery amount, the above X (°C) is preferably 80°C or more and 400°C or less. Specifically, it can be 80°C, 90°C, 100°C, 110°C, 120°C, 130°C, 140°C, 150°C, 160°C, 170°C, 180°C, 190°C, 200°C, 210°C, 220°C, 230°C, 240°C, 250°C, 260°C, 270°C, 280°C, 290°C, 300°C, 310°C, 320°C, 330°C, 340°C, 350°C, 360°C, 370°C, 380°C, 390°C, or 400°C.
In the region of the tip paper constituting the winding part where the resin composition is coated, the temperature of the portion heated by the heater member does not usually exceed 230° C. during use. The heating temperature of the portion during use may be 200° C. or more and less than 230° C., 180° C. or more and less than 200° C., or 160° C. or more and less than 180° C. When a conventional coating agent containing nitrocellulose is used, the above-mentioned TSNA may usually occur when the coated region is heated to more than 200° C.
When a non-combustion heat-not-burn tobacco is heated by an electric heating device, the temperature of the outer peripheral surface at a predetermined position of the non-combustion heat-not-burn tobacco is measured by the method described below.
When heated by the heater member, vapor containing the aerosol-generating base material, flavor components, etc. is generated from the tobacco rod portion and reaches the user's oral cavity through a mouthpiece portion composed of a cooling portion, a filter portion, etc.

<Method for measuring the temperature of the outer surface of a non-combustion heating tobacco product>
When a non-combustion heating tobacco is heated by an electric heating device, the temperature of the outer peripheral surface of the non-combustion heating tobacco is measured by the following method.
A thermocouple (manufactured by Toa Denki Co., Ltd., model number TI-SP-K) is attached to the outer circumferential surface of the wrapping part of the non-combustion heat-not-burn tobacco so that the temperature can be measured at a predetermined position when the non-combustion heat-not-burn tobacco is used. A cut piece of polyimide tape (thickness 50 μm) is used to attach the thermocouple.
The non-combustion heated tobacco with the thermocouple attached is inserted into an electrically heated device, and the maximum temperature at each measurement point under the heater temperature in the above-mentioned <Smoking Test> is recorded and used as the temperature of the outer surface at a specified position on the non-combustion heated tobacco.

<Smoking test>
The smoking test is carried out under the following conditions with reference to Canadian Intense Smoking (CIR).
For example, using the above-mentioned electrically heated tobacco product, after inserting the tobacco rod part of the non-combustion heated tobacco, the heater temperature is raised to 230°C within 17 seconds, and the temperature is maintained for 23 seconds, and then kept constant in the temperature range of 170°C to 175°C. After this, the smoking test is performed automatically using a Borgwald single-puff automatic smoking machine under the conditions of a flow rate of 55cc/2 seconds and a smoking interval of 30 seconds. At this time, the smoking test is performed without blocking the external air introduction hole provided on the outer periphery of the cooling part. The mainstream smoke generated in the smoking test is collected in a Cambridge pad, and after 10 puffing operations, the Cambridge pad is removed.

<Method for measuring TSNA amount>
The method for measuring the amount of TSNA in a non-combustion heating tobacco is not particularly limited, but for example, the measurement target can be added to a 0.1 M (mol/L) aqueous solution of ammonium acetate, stirred and extracted (180 rpm, 60 min), then filtered through a glass fiber filter, and the obtained filtrate can be subjected to ion chromatography. Note that an aqueous solution of acetic acid and a methanol solution of acetic acid can be used as the mobile phase.

The present invention will be explained in more detail by way of examples, but the present invention is not limited to the description of the following examples as long as it does not deviate from the gist of the present invention.

<Examples and Comparative Examples>
[Preparation of tip paper for forming the winding part]
Resin compositions having the compositions shown in Table 1 were prepared. The solid components of each resin composition were dissolved in a solvent (ethyl acetate) to adjust the solid content to 14 to 15% by weight. In addition, tipping paper (basis weight 37 g/mm ² , thickness 40 μm) manufactured by Nippon Paper Papylia was used as the tipping paper, and it was prepared to have a winding circumference of 22 mm and a winding length of 40 mm.
The resin composition was applied to the above-mentioned tip paper using a 20 μl micropipette tip, except for Reference Example 1. At this time, the resin composition was applied uniformly so that the weight of the solid content attributable to the resin composition in the tip paper was 0.21% by weight. In Reference Example 1, the above-mentioned tip paper base paper was used as it was.

[Preparation of tobacco rod part]
A tobacco filler was prepared by mixing 2 g/100 g of flavor and 40 g/100 g of aerosol-generating base material (glycerin) with shredded tobacco sheets. The tobacco filler was rolled up with cigarette paper (manufactured by Nippon Paper Papylia, basis weight 35 g/m ² , thickness 52 μm) using a high-speed rolling machine.
The weight of each piece was 0.8 g, the circumference of the winding was 22 mm, and the length of the winding was 68 mm.
The rolled tobacco rods were stored in plastic airtight containers, 200 of each level.

[Preparation of non-combustion heat-not-burn tobacco]
The tobacco rod part produced by the above method was cut to a length of 20 mm. After that, the tobacco rod part was wrapped by hand with the tipping paper prepared above to form a wrapping part, which included a cooling part having dilution air holes on the outer periphery of a 20 mm long paper tube, a support part consisting of a center hole filter having a through hole of 8 mm, and a filter part filled with cellulose acetate fiber of 7 mm in length, to produce non-combustion heat-not-burn tobacco of the examples and comparative examples.

<Smoking test>
Each non-combustion heated tobacco product prepared in the examples and comparative examples was subjected to a smoking test. The electrically heated tobacco product used in the smoking test had the above-mentioned configuration. After inserting the tobacco rod part of the non-combustion heated tobacco product, the heater temperature was raised to 230°C within 17 seconds, and the temperature was maintained for 23 seconds, and then the temperature was kept constant in the temperature range of 170°C to 175°C. After this, the smoking test was performed using a Borgwald single-puff automatic smoking machine under the conditions of a flow rate of 55cc/2 seconds and a smoking interval of 30 seconds. The smoking test was performed without blocking the external air introduction hole provided on the outer periphery of the cooling part. The mainstream smoke generated in the smoking test was collected by the Cambridge pad. After performing 10 puffing operations, the Cambridge pad was removed.

<Measurement of TSNA>
The amount of TSNA contained in the non-combustion heat-not-burn tobacco after the smoking test was measured according to the following method.
The Cambridge pad was removed and subjected to stirring extraction (180 rpm, 60 min). The extract was then filtered through a glass fiber filter, and the filtrate was subjected to ion chromatography to measure the amount of TSNA. An aqueous acetic acid solution and an acetic acid methanol solution were used as the mobile phase. The TSNA content of each measurement target performed using the non-combustion heating tobacco of the examples and comparative examples is shown in Table 1.

<Evaluation of curling of tip paper>
Each resin composition shown in Table 1, adjusted with a solvent to 15 seconds/ZC#3, was applied to the above chip paper base paper with a coater (corresponding to a plate depth of 30 μm), and then dried with a dryer to prepare a sample.
The base paper was cut to a width of 6 cm, and the state of concave curl of the sample (lifting of both ends of the base paper width of 6 cm) was evaluated after leaving it at room temperature for 24 hours. The average of the 5-point evaluation was calculated (unit: mm). The results are shown in Table 1.

In Table 1, when comparing the cases where ethyl cellulose was added to the resin composition (Comparative Example 3, Example 1) with the cases where nitrocellulose was added (Comparative Example 1, Comparative Example 2), it was found that the amount of TSNA produced was clearly greater when nitrocellulose was added.

Also, from the results in Table 1, when the resin composition contains nitrocellulose, there is no significant difference between the case where it is contained alone (Comparative Example 1) and the case where it is contained together with a plasticizer (Comparative Example 2), and no effect was observed due to the addition of a plasticizer. On the other hand, when the resin composition contains ethyl cellulose, the curl value in Example 1 is halved compared to the case where it is contained alone (Comparative Example 3) and the case where it is contained together with a plasticizer (Example 1), and a remarkable effect was observed due to the addition of a plasticizer.

In order to confirm the influence of adding a pigment or a heat-sensitive color developer as an optional component to a resin composition, the following test was carried out.
Example 4
As in the above Examples, a pigment (aluminum (Tokyo Ink Co., Ltd.)) was added to the resin composition in a weight ratio of pigment:ethyl cellulose = 2:1, and tipping paper was produced in the same manner as in the Examples. A tobacco rod part was produced using the produced tipping paper in the same manner as in the above Examples, and a non-combustion heat-not-burn tobacco was further produced.
(Comparative Example 4)
As in the above Examples, a pigment (aluminum (Tokyo Ink Co., Ltd.)) was added to the resin composition in a weight ratio of pigment:nitrocellulose = 2:1, and tipping paper was produced in the same manner as in the Examples. A tobacco rod part was produced using the produced tipping paper in the same manner as in the above Examples, and a non-combustion heat-not-burn tobacco was further produced.
Example 5
As in the above Examples, a resin composition was prepared to which a heat-sensitive developer (tripastosodium citrate monohydrate (manufactured by Fuso Chemical Co., Ltd.)) was added in a weight ratio of heat-sensitive developer:ethyl cellulose of 4:3, and tipping paper was produced in the same manner as in the Examples. A tobacco rod was produced using the tipping paper produced in the same manner as in the above Examples, and a non-combustion heat-not-burn tobacco was further produced.
(Comparative Example 5)
As in the above examples, a resin composition was prepared to which a heat-sensitive developer (tripastosodium citrate monohydrate (manufactured by Fuso Chemical Co., Ltd.)) was added in a weight ratio of heat-sensitive developer:nitrocellulose of 4:3, and tipping paper was produced in the same manner as in the examples. A tobacco rod was produced using the tipping paper produced in the same manner as in the above examples, and a non-combustion heat-not-burn tobacco was further produced.

Using the tipping paper and non-combustion heat-not-burn tobacco prepared above, smoking tests, TSNA measurements, and curl evaluations were conducted in the same manner as in the above examples. The results are shown in Table 2 below.

From the results in Table 2 above, it was confirmed that even when a pigment or a thermal developer was added as an optional component to the resin composition, the use of the specified resin of the present invention suppressed the generation of TSNA, and that the use of a plasticizer in combination reduced curling. On the other hand, such an effect was not obtained in the comparative example in which nitrocellulose was used as the resin.

Reference Signs List 1 Non-combustion heated tobacco 10 Tobacco rod part 11 Mouthpiece part 12 Tipping paper 13 Resin composition 14 Cooling part 15 Filter part 2 Electrically heated device 20 Battery unit 21 Control unit 22 Body 23 Heater member 3 Electrically heated tobacco product

Claims (11)

A non-combustion heat-not-burn tobacco product comprising a tobacco rod portion and a mouthpiece portion, the tobacco rod portion and the mouthpiece portion being wrapped with tipping paper,
A resin composition is applied to at least a portion of the tip paper constituting the winding portion,
the region to which the resin composition is applied includes a heating portion during use of the non-combustion heat-not-burn tobacco product;
The resin composition contains ethyl cellulose and a plasticizer,
A non-combustion heated tobacco product, wherein the plasticizer comprises triacetin. A non-combustion heat-not-burn tobacco product comprising a tobacco rod portion and a mouthpiece portion, the tobacco rod portion and the mouthpiece portion being wrapped with tipping paper,
A resin composition is applied to at least a portion of the tip paper constituting the winding portion,
the region to which the resin composition is applied includes a heating portion during use of the non-combustion heat-not-burn tobacco product;
The resin composition contains one or more resins selected from the group consisting of ethyl cellulose, hydroxyethyl cellulose, methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, alkyd resins, polyamide resins, styrene-acrylic resins, butyl methacrylate-methyl methacrylate resins, and polyester resins, and a plasticizer ;
A non-combustion heated tobacco , wherein the resin composition further contains a colorant component (excluding the case where the resin composition contains nitrocellulose). A non-combustion heat-not-burn tobacco product comprising a tobacco rod portion and a mouthpiece portion, the tobacco rod portion and the mouthpiece portion being wrapped with tipping paper,
A resin composition is applied to at least a portion of the tip paper constituting the winding portion,
the region to which the resin composition is applied includes a heating portion during use of the non-combustion heat-not-burn tobacco product;
The resin composition contains one or more resins selected from the group consisting of ethyl cellulose, hydroxyethyl cellulose, methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, alkyd resins, polyamide resins, styrene-acrylic resins, butyl methacrylate-methyl methacrylate resins, and polyester resins, and a plasticizer;
The resin composition further contains a thermal developer.
(Except when the product contains nitrocellulose.) The non-combustion heated tobacco according to any one of claims 1 to 3, wherein the region coated with the resin composition includes at least a region having a length of 10% or less from the tobacco rod side end toward the mouth end of the tipping paper in the longitudinal direction of the non-combustion heated tobacco. The non-combustion heat-not-burn tobacco according to any one of claims 1 to 4 , wherein the region coated with the resin composition includes at least a region extending from an end of the tobacco rod in the longitudinal direction of the wrapping part to a distance of 5 mm or less. The non-combustion heated tobacco product according to any one of claims 1 to 5, wherein the resin composition further comprises a colorant component. The non-combustion heat-not-burn tobacco product according to any one of claims 1 to 2 and 4 to 6 , wherein the resin composition further comprises a thermal developer. The non-combustion heating tobacco according to any one of claims 1 to 7 , wherein the coating amount of the solid content attributable to the resin composition in the tipping paper is 0.0001 to 3 wt%. The non-combustion heating tobacco product according to any one of claims 1 to 8 , wherein the mouthpiece portion has a cooling portion and a filter portion. The non-combustion heat-not-burn tobacco according to any one of claims 1 to 9 , wherein the non-combustion heat-not-burn tobacco has openings penetrating the tipping paper and the resin composition. An electrically heated tobacco product comprising: an electrically heated device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member; and the non-combustion heated tobacco product according to any one of claims 1 to 10 , which is inserted so as to come into contact with the heater member.

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