JP6944593B2 - Rolling paper for non-combustion heating type smoking articles, non-combustion heating type smoking articles and electric heating type smoking system - Google Patents

Description

The present invention relates to rolling paper for non-combustion heating type smoking articles, non-combustion heating type smoking articles and electric heating type smoking systems.

There is known a non-combustion heating type smoking article of a type in which heating is performed from around a tobacco rod containing tobacco chopped and volatile components are delivered to the user. In non-combustion-heated smoking articles, the tobacco rod wrapped with rolling paper is heated, but unlike conventional cigarettes, the tobacco rod remains unburned after use (after heating).
In conventional cigarettes, white (colorless) paper is generally used as the wrapping paper for wrapping tobacco nicks, although a logo or the like may be attached.

It has been found that when non-combustion-heated smoking articles use the wrapping paper used in conventional cigarettes as the wrapping paper for wrapping tobacco nicks, heating during use may cause discoloration that is unpleasant for the user. ..
Therefore, it is an object of the present invention to provide a rolling paper for non-combustion heating type smoking articles that does not cause discomfort regarding appearance that may occur due to heating.

In order to solve the above problems, the present inventor has focused on making the unpleasant discoloration inconspicuous by using a rolling paper having a colored portion having a discoloration range in a specific range after heating.
Paper made mainly of pulp burns and turns brown when heated at a certain temperature or higher, but since the cause is physical due to thermal decomposition of pulp and paper components, such discoloration occurs. Cannot be easily prevented. However, it has been found that even if discoloration occurs due to charring, if the color of the original paper and the degree of discoloration from the original paper are small within a certain range, it can be made difficult to see as an unpleasant charring color.
That is, it has been found that the above-mentioned unpleasant discoloration problem can be solved by using a paper having a region having a small color difference before and after heating. The present inventors have discovered that the region of color difference change that is visually permissible for discoloration is expressed by a mathematical formula, and applies the values ^{of L *} , a ^* , and b ^{* before and after heating to the mathematical formula.} In this case, it was found that the problem related to unpleasant discoloration peculiar to non-combustion heating type smoking articles can be solved by using a paper having a colored portion showing a specific numerical value as a wrapping paper.
The problem of the present invention is peculiar to a non-combustion heating type smoking article heated by an electric heating type device, and is a problem not caused by a conventional smoking article (cigarette or the like).

That is, the present invention is as follows.
[1] A colored portion having a discrimination score lower than 0.62 obtained by substituting the color difference value in the CIELab color system before and after heating at 230 ° C. for 3 minutes into the following equation (1). Rolling paper for non-combustion heating type smoking articles.
Discriminant score (y) y = -0.18 × ΔL * + 0.08 × Δa * + 0.13 × Δb * -2.36 (1)
(In the formula (1), and the color difference values in the CIELab color coordinate system before and after heating, after heating ^{L *,} a *, ^{b *} from the value before heating ^{L *,} a *, and ^{b *} values The subtracted value. ΔL ^* indicates the difference in ^{brightness L *} between after heating the wrapping paper and before heating ^{, and Δa *} is the difference in ^{chromaticity a *} after heating the wrapping paper and before heating. , Δb ^* indicates the difference in ^{chromaticity b *} after heating the wrapping paper and before heating.)
[2] The rolling paper for non-combustion heating type smoking articles according to [1], wherein the colored portion is colored by printing.
[3] The rolling paper for non-combustion-heated smoking articles according to [1] or [2], wherein the rolling paper contains pulp as a main component and is composed of a mixed pulp of bleached pulp and unbleached pulp.
[4] The rolling paper for non-combustion heating type smoking articles according to [1] or [2], wherein the rolling paper is composed of sheet tobacco.
[5] The wrapping paper for non-combustion-heated smoking articles according to any one of [1] to [4], ^{wherein the L *} value of the colored portion before heating is 90 or less.
[6] The rolling paper for non-combustion heating type smoking articles according to any one of [1] to "5", wherein the discrimination score of the colored portion is less than 0.
[7] A tobacco rod portion in which a filler containing tobacco nicks and an aerosol-forming base material is wrapped with a first rolling paper for wrapping the filler, and an end portion opposite to the tobacco rod portion. A non-combustion heating type having a mouthpiece portion constituting the above, and the tobacco rod portion and the mouthpiece portion are connected by using the same or different second wrapping paper as the wrapping paper for wrapping the filling. A non-combustion heating type smoking article, wherein at least one of the first wrapping paper and the second wrapping paper is the wrapping paper according to any one of [1] to [6].
[8] An electric heating type including a heater member, a heat transfer member that transfers heat from the heater member, a battery unit that serves as a power source for the heater member, and a control unit for controlling the heater member. An electrically heated smoking system comprising a device and the non-combustible heating type smoking article according to [7], which is fitted so as to come into contact with the heat transfer member.

According to the present invention, it is possible to provide a rolling paper for non-combustion-heated smoking articles that does not cause visual discomfort that may occur due to heating.

It is a schematic diagram which shows one aspect of the non-combustion heating type smoking article. It is the schematic which shows one aspect of the electric heating type smoking system. It is a figure which shows the relationship between ^{the ΔL *} value before and after heating of each paper sample, and the appearance impression. It is a figure which shows the relationship between ^{the Δa *} value before and after heating of each paper sample, and the appearance impression. It is a figure which shows the relationship between ^{the Δb *} value before and after heating of each paper sample, and the appearance impression. It is a figure which shows the result of the discriminant analysis performed using the relationship between the Δ value ^{of L *} , a ^* , b ^* and the appearance impression of each paper sample before and after heating. It is a figure which shows the relationship between ^{the Δa *} value and the Δb ^* value of each paper sample before and after heating.

Hereinafter, the present invention will be described in detail by showing embodiments and examples, but the present invention is not limited to the following embodiments and examples, and is arbitrarily limited to the extent that it does not deviate from the gist of the present invention. Can be changed and implemented.

<Rolling paper for non-combustion heating type smoking articles>
In the present specification, the "rolling paper for non-combustion heating type smoking articles" is a wrapping paper used for non-combustion heating type smoking articles described later. Hereinafter, it is also simply referred to as a rolling paper according to an embodiment of the present invention. Regarding the use of the wrapping paper according to the embodiment of the present invention, "for non-combustion heating type smoking articles" is used for winding a filler containing tobacco nicks to produce a tobacco rod, or is adjacent to the tobacco rod. It means that it is used to wind the outer peripheral surfaces of the members to be connected.

^{In the rolling paper according to the embodiment of the present invention, L *} , a ^* , and b ^* are measured before and after heating at 230 ° C. for 3 minutes (also simply before and after heating), and the difference between the values before and after heating (heating). The value obtained by subtracting the value before heating from the value after heating) ^{is expressed as ΔL *} , Δa ^* , and Δb ^* , respectively, and y (discrimination score) obtained by substituting those values into the following equation (1) is , Has a colored portion having a value smaller than 0.62.
y (discriminant ^{score) = - 0.18 × ΔL * +} 0.08 × Δa * + 0.13 × Δb * -2.36 (1)
The rolling paper according to the embodiment of the present invention has a colored portion showing a discriminant score smaller than 0.62 obtained by substituting each value of ^{ΔL *} , Δa ^* , and Δb ^{* into the above equation (1).} If so, there is no particular limitation on the values ^{of L *} , a ^* , and b ^{* before heating.}
The colored portion may be present on the entire surface of the rolling paper according to the embodiment of the present invention, or may be present at least in a portion to be heated (heating by an electric heating type device described later). ..
In the colored part, the ^{one having a low L *} value before heating (the one having a dark color) tends to have a good appearance after heating. In one form of rolling paper, the L ^* value of the colored portion before heating may be 90 or less.
It will be shown in later examples that if the y (discrimination score) obtained by the above formula (1) is smaller than 0.62, the appearance-related discomfort that may occur due to heating does not occur. When y (discrimination score) obtained by the above formula (1) is less than 0, those whose appearance is not impaired before and after heating are more reliably included.

In the rolling paper according to the embodiment of the present invention, the ^{values of L *} , a ^* , and b ^* before and after heating are measured at five points of the colored part of the paper as a sample, and the simple average value thereof is adopted. .. The target of measurement is any point on the colored part of the paper, but if there are characters or patterns such as a logo on the paper, the part of the colored part where such characters or logo does not exist is targeted. do. Each value of L ^* , a ^* , and b ^* can be measured by using a spectrophotometer.
Specifically, a spectrophotometer (manufactured by X-Rite, product name SpectroEye) is used. The measurement is performed by placing one sample on a paper having an ISO whiteness of 92% under the conditions of a light source D65, no light source filter, and a viewing angle of 2 °, and pressing the measuring unit of a spectrophotometer on the sample.

A known method is used without particular limitation as a means for obtaining a paper having a colored portion (also referred to as a paper having the above characteristics) whose discrimination score obtained by the above formula (1) is smaller than 0.62. be able to.
For example, by printing on the conventional wrapping paper as described above or other suitable paper, a wrapping paper having a colored portion showing a desired hue may be obtained. That is, the colored portion existing in the wrapping paper according to the embodiment of the present invention may be attached by printing. When the colored portion is attached to the wrapping paper by printing, the above characteristics can be easily imparted to the wrapping paper.
The printing method is not particularly limited, and examples thereof include gravure printing and offset printing. By printing, the L ^* value of the colored portion can be changed to, for example, 90 or less.
Examples include a mode in which printing is performed on the entire surface of the base paper, or a mode in which a portion of the surface of the base paper that is heated by an electric heating type device described later is printed as at least a colored portion. Further, the printed surface to be the colored portion can be a target for discriminant analysis by the above formula (1). On the other hand, when a logo or a partial pattern is attached to the base paper as a colored part by printing, the printed surface (printed portion) is not subject to color measurement by a spectrophotometer.
On the surface of the wrapping paper, it is preferable that at least the portion to be heated (the portion to be heated by the electric heating type device) is a colored portion having a discrimination score smaller than 0.62 according to the above formula (1). Among the surfaces of the wrapping paper, the portion heated by the electric heating type device described later has the above-mentioned characteristics, so that the deterioration of the appearance impression after heating can be prevented.
Further, by changing the composition of the raw material of the rolling paper, which will be described later, it is possible to have a colored portion whose discrimination score according to the above formula (1) is smaller than 0.62. Specifically, the content of the filler, which will be described later, may be adjusted, tobacco nicks may be added to the pulp, or the content of unbleached pulp may be increased after being contained.

The basis weight of the rolling paper base paper according to the embodiment of the present invention is, for example, usually 20 g / m ² or more, preferably 35 g / m ² or more, and more preferably 40 g / m ² or more. On the other hand, the basis weight is usually 65 g / m ² or less, preferably 50 g / m ² or less.
The thickness of the rolling paper having the above characteristics is not particularly limited, and is usually 10 μm or more, preferably 20 μm or more, more preferably 30 μm or more, from the viewpoint of rigidity, breathability, and ease of adjustment during papermaking. It is usually 100 μm or less, preferably 75 μm or less, and more preferably 50 μm or less.
As a rolling paper for non-combustible smoking articles, the shape may be square or rectangular. When used as a rolling paper for wrapping tobacco nicks (to make a tobacco rod), the length of one side can be about 15 to 70 mm, and the length of the other side is 15 to 26.5 mm. 24 mm can be mentioned as a preferable length of one side.
When the tobacco rod and other members adjacent to the tobacco rod are connected and wound like chip paper, the length of one side is 20 to 60 mm, and the length of the other side is 15 to 26.5 mm. Can be mentioned.

Examples of the rolling paper having the above characteristics include those having pulp as a main component. In addition to pulp made from wood pulp such as softwood pulp and broadleaf pulp, non-wood pulp commonly used for wrapping paper for smoking articles such as flax pulp, cannabis pulp, sisal hemp pulp, and esparto is mixed. It may be obtained by manufacturing.
As the type of pulp, chemical pulp, ground pulp, chemigrand pulp, thermomechanical pulp, etc. by the craft cooking method, the acidic / neutral / alkaline sulfite cooking method, the soda salt cooking method, etc. can be used.

Further, as the pulp, for example, one composed of a mixed pulp of bleached pulp and unbleached pulp may be used.
Paper that has been colored by printing can also be used, even if it is composed only of bleached pulp.
Prepare spruce, which is a coniferous tree, poplar, which is a broad-leaved tree, as bleached pulp, and pine, which is unbleached pulp. A desired ratio of bleached pulp and unbleached pulp is added to the pulper to dissociate these pulps. Then, the disaggregated pulp is transferred to a refiner and beaten with the refiner. Separately, calcium carbonate is prepared as a filler and a coagulant is prepared as a production aid, and these are mixed with the beaten pulp. The bleached pulp and the unbleached pulp are independently separated using a plurality of pulpers, beaten with a refiner, and the beaten bleached pulp and the unbleached pulp, a filler, and a production aid are mixed in a mixing box. You may let me.

Next, in the papermaking process using the mixed pulp with a long net paper machine, a circular net paper machine, a circular short composite paper machine, etc., the texture is adjusted and made uniform to produce rolling paper. If necessary, the above-mentioned wet paper strength enhancer may be added to impart water resistance to the wrapping paper, or a sizing agent may be added to adjust the printing condition of the wrapping paper. Furthermore, papermaking additives such as aluminum sulfate bands, various anionic, cationic, nonionic or amphoteric yield improvers, drainage improvers, and paper strength enhancers, as well as dyes and pH adjusters, Papermaking additives such as defoaming agents, pitch control agents, and slime control agents can be added.
When bleached pulp and unbleached pulp are mixed and used, the proportion of unbleached pulp in the wrapping paper is preferably, for example, 1% by weight or more and 90% by weight or less, more preferably 5% by weight or more and less than 86% by weight, and further. It is preferably 5% by weight or more and 60% by weight or less.

In addition to the above pulp, the rolling paper according to the embodiment of the present invention may contain a filler. The content of the filler may be 30% by weight or more and less than 60% by weight with respect to the total weight of the rolling paper according to the embodiment of the present invention.
As the filler, calcium carbonate, titanium dioxide, kaolin and the like can be used, but it is preferable to use calcium carbonate from the viewpoint of taste and the like.
Paper containing such a filler usually exhibits a bright white color, but in order to make the discrimination score obtained by the above formula (1) smaller than 0.62, for example, the brightness is lowered. Dyes for this purpose, for example, blackish, brownish, dark red, dark green, dark blue and other dyes and / or dyes may be included. It is more preferable to use a pigment that is less discolored by heating.
Rolling paper composed of mixed pulp usually has a color due to unbleached pulp. The printing illustrated above may be performed on a rolling paper composed of mixed pulp to further add color.

Sheet tobacco composed of recycled tobacco may be used as the rolling paper according to the embodiment of the present invention.
Examples of sheet tobacco include papermaking sheet tobacco obtained by a papermaking method and slurry sheet tobacco obtained by drying a slurry.
The general manufacturing method of abstract sheet tobacco is obtained by the step of extracting natural tobacco materials (leaves, chopped, middle bones, stems, roots, etc.) using an extraction solvent such as water, and the extraction operation. It can include a step of separating the extract and the residue, a step of making a recycled tobacco web by making paper from the residue, and a step of applying the fractionated extract back to the recycled web, if necessary. Such a manufacturing method is described in, for example, International Publication No. 2004/098323 as a wet papermaking method.

Slurry sheet tobacco can be produced, for example, by the method described in JP-A-11-266851. The raw material slurry contains wood pulp mixed and defibrated in water, tobacco powder and a binder. The raw material slurry is extruded from the slurry feeder between the belt conveyor and the roller, and is stretched in a sheet shape on the belt conveyor. After that, the sheet-shaped raw material slurry on the belt conveyor is conveyed to the drying furnace, and when it passes through the drying furnace, it is dried to form sheet tobacco.
When sheet tobacco is used as the rolling paper according to the embodiment of the present invention, the basis weight thereof is in ^{the range of 30 to 80 g / m 2} , and the air permeability is 0 to 60.0 CU (cholesta unit).
As another method for producing sheet tobacco, for example, the dry papermaking method described in Japanese Patent Application Laid-Open No. 61-52269 can be mentioned, and the sheet tobacco obtained by this method includes fibers of wood pulp, an adhesive, and tobacco. It is composed of a stem.
The sheet tobacco usually has a color derived from the tobacco material, but a dye or pigment may be added, or a sheet tobacco may be further printed to give a color.

The wrapping paper according to the embodiment of the present invention may or may not contain a combustion improver contained in the conventional wrapping paper for tobacco rods. The rolling paper according to the embodiment of the present invention may be used as the first rolling paper used for the non-combustion heating type smoking article described later, or may be used as the second rolling paper.

<Non-combustion heating type smoking goods>
Examples of the non-combustion heating type smoking article according to the embodiment of the present invention include those having the configuration shown in FIG.
The non-combustion heating type smoking article 10 of FIG. 1 has a tobacco rod portion composed of a filling material 11 and a first wrapping paper 12 for winding the filling material 11, and an end portion opposite to the tobacco rod portion. The tobacco rod portion and the mouthpiece portion include a mouthpiece portion 16 that constitutes the same, and the same or different second wrapping paper 13 (chip paper in FIG. 1) that is the same as or different from the wrapping paper that wraps the filling material is used. It is connected.
At least one of the first wrapping paper and the second wrapping paper is the wrapping paper according to the embodiment of the present invention described above. It is preferable that at least the first wrapping paper is the wrapping paper according to the embodiment of the present invention. It is also preferable that both the first wrapping paper 12 and the second wrapping paper are the wrapping papers according to the embodiment of the present invention described above.
In the embodiment shown in FIG. 1, the mouthpiece portion 16 includes a paper tube portion 14 and a filter portion 15. Further, a chip paper 13 is provided as a second wrapping paper for connecting these. Although the mouthpiece portion 16 is composed of two segments in FIG. 1, the mouthpiece portion 16 may be composed of a single segment or may be composed of three or more segments. Further, the segment constituting the mouthpiece portion may be configured to include both the paper tube portion and the filter portion, or may be composed of only one of them.

As the vapor containing the aerosol-forming base material and the tobacco flavor component generated by heating the tobacco rod passes through the paper tube portion 14, it comes into contact with the air in the paper tube and is cooled to liquefy the aerosol. Is generated.
Further, in the non-combustion heating type smoking article 10, the paper tube portion 14 and a part of the second wrapping paper 13 (chip paper) covering the periphery of the paper tube portion 14 are provided with minute holes for taking in air from the outside. May have (not shown). Due to the presence of such micropores, air flows into the inside of the paper tube portion 14 from the outside during use, and the vapor containing the aerosol-forming base material and the tobacco flavor component generated by heating the tobacco rod is generated. As the temperature drops in contact with the air from the outside, it liquefies and the aerosol is more reliably produced.
As the paper tube portion 14, for example, a thick paper processed into a cylindrical shape can be mentioned.
Examples of the filter unit 15 include those using acetate tow as a material. The single yarn fineness and total fineness of acetate tow are not particularly limited.
Although the filter unit 15 is composed of a single segment in FIG. 1, it may be composed of a plurality of segments. When it is composed of a plurality of segments, for example, a hollow segment may be arranged on the upstream side, and the mouthpiece cross section may be filled with acetate toe as a segment on the downstream side (user's mouthpiece end side). .. According to such an aspect, it is possible to prevent unnecessary loss of the produced aerosol and to improve the appearance of the non-combustion heating type smoking article.
Further, in the manufacture of the filter, the adjustment of the ventilation resistance and the addition of additives (known adsorbents, fragrances, fragrance holders, etc.) can be appropriately designed.
The material of the second wrapping paper 13 (chip paper) is not particularly limited, but the wrapping paper according to the embodiment of the present invention may be used in part or in whole. The second wrapping paper 13 may be fixed after being wrapped around the tobacco rod, the paper tube portion 14, and the filter portion 15 using, for example, vinyl acetate-based glue.

The tobacco rod includes tobacco chopping as the filling material 11, and the material for the tobacco chopping is not particularly limited, and known materials such as lamina and middle bone can be used. The range of the content of the filler in the tobacco rod can be 200 to 400 mg / rod in the case of a tobacco rod having a circumference of 22 mm and a length of 20 mm, and 250 to 320 mg / rod is preferable. The water content of the packing can be 10 to 15% by weight, preferably 11 to 13% by weight. With such a water content, the occurrence of winding stains is suppressed, and the hoisting suitability at the time of manufacturing the tobacco rod is improved.

There are no particular restrictions on the size of the tobacco chopped used as the filling material or the method for preparing the chopped tobacco. For example, dried tobacco leaves may be chopped to a width of 0.8 to 1.2 mm.
Further, dried tobacco leaves may be crushed to an average particle size of about 20 to 200 μm, homogenized, processed into a sheet, and chopped into a width of 0.8 to 1.2 mm. ..
Further, the above-mentioned sheet-processed material that has been gathered without being carved may be used as the filling material.

The filler comprises an aerosol-producing substrate that produces aerosol smoke. The type of the aerosol-producing base material is not particularly limited, and extracts from various natural products and / or their constituents can be selected depending on the intended use. Examples of the aerosol-forming substrate include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
The content of the aerosol-forming base material in the filling is not particularly limited, and is usually 5% by weight or more, preferably 10% by weight or more, from the viewpoint of sufficiently producing an aerosol and imparting a good taste. Yes, and usually 50% by weight or less, preferably 20% by weight or less.

The filling may contain a fragrance. The type of the fragrance is not particularly limited, and from the viewpoint of imparting a good taste, acetoanisol, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-annel, staranis oil. , Apple juice, Peruvian balsam oil, Mitsurou absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butandione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamon oil , Carob absolute, β-carotene, carrot juice, L-carboxylic, β-cariophyllene, cassia bark oil, cedar wood oil, celery seed oil, camomil oil, cinnamaldehyde, silicic acid, cinnamyl alcohol, cinnamyl silicate, citronella Oil, DL-Citronellol, Clarisage Extract, Cocoa, Coffee, Cognac Oil, Coriander Oil, Cuminaldehyde, Davana Oil, δ-Decalactone, γ-Decalactone, Decanoic Acid, Dilherb Oil, 3,4-Dimethyl-1,2 -Cyclopentandione, 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 maltor, ethyl octanate, 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) -Flanone, 2-Ethyl-3-methylpyrazine, Eucalyptor, Fenegreak Absolute, Gene Absolute, Lindou Root Infusion, Geraniol, Geranil Acetate, Grape Juice, Guayacol, Guava Extract, γ-Heptalactone, γ-hexalactone, hexanoic acid, cis-3-hexene-1-ol, hexyl acetate, hexyl alcohol, hexyl phenylacetate, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy-4 − (3-Hi Droxy-1-butenyl) -3,5,5-trimethyl-2-cyclohexen-1-one, 4- (para-hydroxyphenyl) -2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, β- Ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpenless oil, kanzo extract, linalol, linaryl acetate, lobage root oil, maltor, Maple syrup, menthol, menthon, L-mentyl acetate, paramethoxybenzaldehyde, methyl-2-pyrrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, Mimosa absolute, toumitsu, myristic acid, nerol, nerolidol, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanoic acid, orange flower oil, orange oil, oris root oil, palmitic acid, ω-pentadecalactone, Peppermint oil, petitgrain paraguay oil, phenethyl alcohol, phenylacetate phenethyl, phenylacetic acid, piperonal, plum extract, propenylguaetol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvate, raisin extract, rose Oil, lamb liquor, sage oil, sandalwood oil, spearmint oil, stylux absolute, marigold oil, tea distillate, α-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-toridecanone, citric acid Triethyl, 4- (2,6,6-trimethyl-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, veratolaldehyde , Violet Leaf Absolute, especially preferred It is menthol. In addition, these fragrances may be used alone or in combination of two or more.

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

^{The filling density of the filler is not particularly limited, but is usually 250 mg / cm 3} or more, preferably 320 mg / cm ³ or more, from the viewpoint of ensuring the performance of the non-combustion heating type smoking article and imparting a good taste. There also is usually 520 mg / cm ³ or less, preferably 420 mg / cm ³ or less.

In the production of the non-combustion heating type smoking article according to the embodiment of the present invention, the above-mentioned wrapping paper according to the embodiment of the present invention can be used. Specifically, a tobacco rod is obtained by molding a filler containing tobacco chopped and an aerosol-forming base material, and then winding the molded filler using the rolling paper according to the embodiment of the present invention. Can be done. Further, by wrapping the tobacco rod and the member constituting the mouthpiece portion with chip paper (or the wrapping paper according to the embodiment of the present invention), a non-combustion heating type smoking article can be obtained. A known winding device can be used for winding.
When the wrapping paper according to the embodiment of the present invention is used as a wrapping paper for a tobacco rod and / or as a chip paper during the production of a non-combustion heating type smoking article, the impression of appearance is impaired after use (after heating). No non-combustion heating type smoking articles can be provided.

The non-combustion heating type smoking article 10 according to an embodiment of the present invention includes a tobacco rod composed of a filler 11 and a wrapping paper 12 (rolling paper according to the embodiment of the present invention), a paper tube portion 14, and a filter portion 15. And a second wrapping paper 13 for connecting them. Further, the non-combustion heating type smoking article 10 may have micropores for taking in air from the outside in the paper tube portion 14 and a part of the second wrapping paper 13 that covers the periphery of the paper tube portion 14. Good (not shown). Due to the presence of such micropores, air flows into the inside of the paper tube portion 14 from the outside during use, and the vapor containing the aerosol-forming base material and the tobacco flavor component generated by heating the tobacco rod is generated. As the temperature drops in contact with the air from the outside, it liquefies and the aerosol is more reliably produced.

<Electric heating type smoking system>
One aspect of the electrically heated smoking system is illustrated in FIG. The electric heating type smoking system 30 is fitted so that the non-combustion heating type smoking article 10 described above comes into contact with the heat transfer member 25 in contact with the heater 24 arranged inside the electric heating type device 20. used.
The electric heating type device 20 has, for example, a battery unit 21 and a control unit 22 inside a resin skeleton 23.
As described above, the non-combustion heating type smoking article has a tobacco rod portion composed of a filling material 11 and a first wrapping paper 12 for wrapping the filling material 11, and an end portion opposite to the tobacco rod portion. It has a mouthpiece portion 16 that constitutes, and the tobacco rod portion and the mouthpiece portion are connected by using the same or different second wrapping paper as the wrapping paper that wraps the filling. When a non-combustion heating type smoking article is fitted into an electric heating type device, an outer circumference composed of an outer peripheral surface of the tobacco rod and a second wrapping paper (chip paper 13) connecting the tobacco rod and the paper tube portion 14. A part of the surface comes into contact with the heat transfer member 25 inside the electrically heated device 20.
The heater 24 inside the electric heating type device 20 generates heat under the control of the control unit 22. When the heat is transferred to the tobacco rod of the non-combustion heating type smoking article via the heat transfer member 25, both the aerosol-forming base material and the flavor component contained in the packing 11 of the tobacco rod are volatilized.
By heating with the heater 24, the tobacco rod is heated to about 150 to 250 ° C.
When measuring the above L ^* , a ^* , and b ^* , the heating temperature of the wrapping paper is set to 230 ° C., and the time is set to 3 minutes by using the electric heating type smoking system according to the embodiment of the present invention. It was set as a premise.
The vapor containing the aerosol-forming base material and the flavor component generated by heating is aerosolized inside the paper tube portion 14 by the mechanism described above, and reaches the user's oral cavity through the filter portion 15 of the non-combustible smoking article 10. ..

The present invention will be described in more detail by way of examples, but the present invention is not limited to the description of the following examples as long as the gist of the present invention is not exceeded.

<Preparation of paper samples before and after heating>
Papers having various numerical values for ^{lightness L *} , chromaticity a ^* , and chromaticity b ^* in the CIELab color system were prepared. As colored paper, for example, a gravure printed product, a mixed paper product in which unbleached pulp was squeezed into white normal pulp, a tobacco sheet in which fine tobacco leaves were squeezed, and the like were prepared. As a completely uncolored paper sample, ordinary chip paper base paper using 100% virgin pulp and wrapping paper were prepared as controls. A total of 26 types of paper were prepared.
The contents are shown in Table 1 below.

<Heating conditions>
The muffle furnace (product name: Muffle Furnace FO410 type, manufactured by Yamato Kagaku) was adjusted to 230 ° C in advance. The door was opened, the paper sample was placed on a household aluminum foil (material: aluminum foil, thickness: 11 μm), placed in a muffle furnace, and the door was closed. The operation was performed quickly (within 3 seconds) to minimize the temperature drop in the muffle furnace. Under the heating conditions in this embodiment (muffle furnace temperature setting 230 ° C., paper sample heating time 3 minutes), the actual paper temperature is about 230 ° C., which is the same as the muffle furnace set temperature at least 1 minute after closing the door. Met. This was confirmed using a color change temperature test paper (Thermo Label 5E-170 / Thermo Label 5E-210 (manufactured by NiGK Thermo Label)).
<Color difference measurement>
The hue of each sample before and after heating was measured using a spectrophotometer (manufactured by X-Rite, product name SpectroEye). The measurement was carried out by placing one sample on a paper having an ISO whiteness of 92% under the conditions of a light source D65, no light source filter, and a viewing angle of 2 °, and pressing the measuring unit of a spectrophotometer on the sample.
The measurement was repeated at 5 points and the average value was used for the analysis. L ^* , a ^* , and b ^* were obtained by subtracting the values before heat discoloration from the values after heat discoloration for ^{ΔL *} , Δa ^* , and Δb ^*.
There are various evaluation and classification systems for hue evaluation, but the CIELab color system is a color system formulated by the CIE (International Commission on Illumination) and is the basis of JIS Z 8781-4 and ISO 11664-4. ing. It is a convenient classification system that approximates human senses, is very commonly used, and can quantify hues in three dimensions. L ^* is the axis representing lightness, a ^* is the axis representing blue to yellow, b ^* is the axis representing blue-green to magenta, L ^* is brighter as the value is higher, and a ^* and b ^* are saturation as they are closer to 0. Will fall. For example, L ^* , a ^* , b ^* = 100,0,0 are white, and 0,0,0 is black.

<Sensory evaluation>
Show the paper samples before and after heating to each of the 20 panels, ask about the appearance of the color, and if 11 or more of the 20 panels answered that they look dirty and uncomfortable, that is the case. The appearance impression of the sample was judged to be x, and when the number of persons was less than 11, the appearance impression of the sample was judged to be ◯, and the results were used for the analysis.

<Analysis>
^{No relationship was found between the ΔL *} , Δa ^* , and Δb ^* values before and after heating and the superiority or inferiority of the appearance impression (FIGS. 3A to 3C).
Since it is not possible to estimate the quality of the color tone of paper after heating from a simple diagram based on the difference in the value of a single hue, we will consider performing discriminant analysis using color difference data and to know the relationship between multiple factors. Discriminant analysis was performed. As a result, we were able to obtain the following function with the ^{ΔL *} a ^* b ^* value as a parameter, which can determine the appearance impression with a high probability of 96.2%. The P value of the discriminant is smaller than 0.001 and is statistically highly significant, and it is generally said that if the discriminant exceeds 75%, it can be used for estimation, so the discriminant is 96.2%. This means that it is almost completely predictable.
Discriminant score ^{y = -0.18 × ΔL * + 0.08} × Δa * + 0.13 × Δb * -2.36 (1)
Discrimination score 0.62 or more: × (bad)
Discrimination score less than 0.62: ○ (good)
^{Equation (1) means that the appearance impression after heating is almost determined by ΔL *} a ^* b ^* , which is the color difference between the paper sample before heating and the paper sample after heating. For example, ΔL ^* is low. , Δa ^* , Δb ^*, the higher the discrimination score. That is, the impression of the paper after heating is in a bad direction.
The results are summarized in FIG.
For the discriminant analysis, two groups of discriminant analysis of Excel Statistics Ver.2.15 multivariate analysis manufactured by Bell Curve were used, and the analysis was performed under the following conditions.
(1) Increase / decrease method P value: Input 0.2 Removal 0.2
(2) Analyze excluding variables that are linearly combined

FIG. 5 shows the relationship between ^{Δa *} and Δb ^* of the paper sample investigated this time in order to explain in more detail.
Since it cannot be specified three-dimensionally, ^{the value of ΔL *} is binarized with -10 for convenience, and the value lower than -10 (dark discoloration) is represented by a black circle or a bold x.

Those with a bad appearance impression in the evaluation are indicated by "x", and ^{both the values of Δa *} and Δb ^* are located in high places. This means that there is a large amount of discoloration in the direction of magenta, yellow, or the combination of them in the brown direction due to heating, and many of them have a ^{relatively low ΔL *.} That is, it can be understood that these samples are a group of samples that visually approach from a so-called light brown color to a dark brown color, and intuitively have a poor appearance impression.
Many of these sample groups have relatively high ^{L * values and low a *} and b ^* values before heating, that is, they are bright and have low saturation. In such a bright and light hue sample, the change in brown color due to heating is easily noticeable, which leads to a poor appearance impression.
On the other hand, the sample of "○", which had a good appearance impression, is located at a place where both the values of ^{Δa *} and Δb ^{* are low.} This means that there is a large amount of discoloration in the direction of blue, green, or the combination of them in the direction of blue-green due to heating. Some of them have a relatively ^{low ΔL *} value, that is, they have a small brightness and are dark, but ○. Contrary to the case of x, these sample groups have relatively ^{low L *} values before heating, and also ^{have high a *} and b ^* values, that is, they are often dark and highly saturated. Since changes in these dark hue samples due to heating are inconspicuous, it is thought that this will lead to a good appearance impression.
Looking at the plot as a whole, Δa ^* is ± 20 and Δb ^* is ± 30, so the plot is distributed over a wide range, so this experiment is not partial and covers samples with various hue changes. You can see that it is doing.

In the present invention, the effective range is defined by paying attention to the degree of color change before and after heating the paper and grasping the region as a numerical value.
Originally, it is easy to think that it is easy to define the region by the hue before heating for such parameterization, but with this statistical method, L ^* , a ^{* of the paper before heating, which is not a color difference.} , B ^* alone did not give a useful formula. It is considered that this is because colored components such as pigments and dyes contained in the color have different thermal decomposition behaviors, and therefore the degree of discoloration after heating also differs for each color component. Therefore, the idea of the present invention that can accurately estimate the appearance impression not only by the color of the original paper but also by the degree of discoloration is rational.

10 Non-combustion heating type smoking article 11 Filling 12 First wrapping paper 13 Second wrapping paper (chip paper)
14 Paper tube part 15 Filter part 16 Mouthpiece part 20 Electric heating type device 21 Battery unit 22 Control unit 23 Frame 24 Heater member 25 Heat transfer member 30 Electric heating type smoking system

Claims (8)

It has a colored part whose discrimination score obtained by substituting the color difference value in the CIELab color system before and after heating at a product temperature of 230 ° C. for 3 minutes into the following equation (1) is lower than 0.62. Rolling paper for non-combustion heating type smoking articles.
Discriminant score (y) y = -0.18 × ΔL * + 0.08 × Δa * + 0.13 × Δb * -2.36 (1)
(In the formula (1), and the color difference values in the CIELab color coordinate system before and after heating, after heating ^{L *,} a *, ^{b *} from the value before heating ^{L *,} a *, and ^{b *} values The subtracted value. ΔL ^* indicates the difference in ^{brightness L *} between after heating the wrapping paper and before heating ^{, and Δa *} is the difference in ^{chromaticity a *} after heating the wrapping paper and before heating. , Δb ^* indicates the difference in ^{chromaticity b *} after heating the wrapping paper and before heating.) The wrapping paper for non-combustion-heated smoking articles according to claim 1, wherein the colored portion is colored by printing. The rolling paper for non-combustion-heated smoking articles according to claim 1 or 2, wherein the rolling paper contains pulp as a main component and is composed of a mixed pulp of bleached pulp and unbleached pulp. The rolling paper for non-combustion heating type smoking articles according to claim 1 or 2, wherein the rolling paper is composed of sheet tobacco. The rolling paper for non-combustion-heated smoking articles according to any one of claims 1 to 4, ^{wherein the L *} value of the colored portion before heating is 90 or less. The rolling paper for non-combustion heating type smoking articles according to any one of claims 1 to 5, wherein the discrimination score of the colored portion is less than 0. A filler containing tobacco nicks and an aerosol-forming substrate constitutes a tobacco rod portion wrapped with a first roll of paper around which the filler is wrapped, and an end portion opposite to the tobacco rod portion. A non-combustion heating type smoking article having a mouthpiece portion, and the tobacco rod portion and the mouthpiece portion are connected by using the same or different second wrapping paper as the wrapping paper for wrapping the filling. A non-combustion heating type smoking article in which at least one of the first wrapping paper and the second wrapping paper is the wrapping paper according to any one of claims 1 to 6. An electric heating type device including a heater member, a heat transfer member that transfers heat from the heater member, a battery unit that serves as a power source for the heater member, and a control unit for controlling the heater member. An electrically heated smoking system comprising the non-combustion heating type smoking article according to claim 7, which is fitted so as to come into contact with the heat transfer member.

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