WO2022071562A1 - Tobacco sheet - Google Patents

Tobacco sheet Download PDF

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Publication number
WO2022071562A1
WO2022071562A1 PCT/JP2021/036387 JP2021036387W WO2022071562A1 WO 2022071562 A1 WO2022071562 A1 WO 2022071562A1 JP 2021036387 W JP2021036387 W JP 2021036387W WO 2022071562 A1 WO2022071562 A1 WO 2022071562A1
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WO
WIPO (PCT)
Prior art keywords
sheet
tobacco
segment
cellulose
mixture
Prior art date
Application number
PCT/JP2021/036387
Other languages
French (fr)
Japanese (ja)
Inventor
渓介 春木
Original Assignee
日本たばこ産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本たばこ産業株式会社 filed Critical 日本たばこ産業株式会社
Priority to JP2022554132A priority Critical patent/JPWO2022071562A1/ja
Priority to EP21875858.9A priority patent/EP4223149A4/en
Publication of WO2022071562A1 publication Critical patent/WO2022071562A1/en
Priority to PCT/JP2022/029113 priority patent/WO2023053704A1/en
Priority to EP22875581.5A priority patent/EP4410121A1/en
Priority to KR1020247014614A priority patent/KR20240090293A/en
Priority to JP2023550416A priority patent/JPWO2023053704A1/ja
Priority to PCT/JP2022/036764 priority patent/WO2023054691A1/en
Priority to JP2023551913A priority patent/JPWO2023054691A1/ja
Priority to JP2023551910A priority patent/JPWO2023054688A1/ja
Priority to EP22876553.3A priority patent/EP4410124A1/en
Priority to KR1020247014529A priority patent/KR20240067130A/en
Priority to EP22876550.9A priority patent/EP4410122A1/en
Priority to PCT/JP2022/036754 priority patent/WO2023054688A1/en
Priority to KR1020247014423A priority patent/KR20240067128A/en
Priority to US18/621,151 priority patent/US20240268440A1/en
Priority to US18/623,063 priority patent/US20240245091A1/en
Priority to US18/623,322 priority patent/US20240251840A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices

Definitions

  • the present invention relates to a tobacco sheet.
  • Patent Document 1 Many techniques related to non-combustion type smoking articles that suck the flavor component generated by heating a tobacco sheet have been proposed (for example, Patent Document 1).
  • the conventional tobacco sheet had some handling problems such as fine powder generated during or after use, so-called spillage, and adhering to clothes. In view of such circumstances, it is an object of the present invention to provide a tobacco sheet with reduced spillage.
  • the inventors have found that the above problems can be solved by using a specific binder. That is, the above problem is solved by the following invention.
  • the sheet according to any one of (1) to (4), wherein the arithmetic average surface roughness Sa is 0.03 mm or less.
  • (6) The sheet according to any one of (1) to (5), which is a pressure-formed sheet.
  • Step 2 of developing the mixture on a substrate to prepare a wet sheet, and step 3 of drying the wet sheet.
  • the sheet manufacturing method according to any one of (1) to (6).
  • the step 1 comprises kneading the tobacco material, the cellulose derivative, and the medium with a uniaxial or multiaxial kneader.
  • the step 2 comprises compressing the mixture using a roller or extruding the mixture from a die.
  • step 2 comprises preparing a laminated sheet in which a wet sheet is present between two base films.
  • step 2 comprises preparing a laminated sheet in which a wet sheet is present between two base films.
  • step 2 comprises preparing a laminated sheet in which a wet sheet is present between two base films.
  • step 2 comprises preparing a laminated sheet in which a wet sheet is present between two base films.
  • step 1 A non-combustion heating type smoking article comprising the tobacco sheet according to any one of (1) to (6) above or a material derived from the tobacco sheet.
  • Schematic diagram showing an example of a tobacco segment using a tobacco sheet Schematic cross-sectional view showing an example of a non-combustion heating type smoking system
  • X to Y includes X and Y which are fractional values thereof.
  • the tobacco sheet is a sheet used for smoking articles, and contains a tobacco material and a cellulose derivative having a degree of substitution of 0.65 or more as a binder.
  • Binder A binder is an adhesive for binding tobacco materials to each other or to tobacco materials and other components.
  • a cellulose derivative having a degree of substitution of 0.65 or more is used as the binder.
  • the cellulose derivative is cellulose in which the -OH group of the gluconopyranose residue is denatured.
  • Those in which the -OH group is modified to the -OR group (R is an organic group) are also referred to as cellulose ethers, and those in which the -OX group (X is a group derived from an acid) are modified are also referred to as cellulose esters.
  • cellulose ether esters Those in which at least one of the -OH groups of the gluconopyranose residue is a -OR group and at least one is a -OX group are also referred to as cellulose ether esters. Any of them can be used in the present invention.
  • the degree of substitution is the number of substituents per gluconopyranose residue, that is, the number of denatured OH groups.
  • the degree of substitution used in the present invention is preferably 0.65 or more, more preferably 0.7 or more, still more preferably 0.8 or more.
  • the upper limit of the degree of substitution is preferably 3.0 or less, more preferably 2.0 or less, still more preferably 1.6 or less, and particularly preferably 1.0 or less.
  • the degree of substitution is measured by a known method.
  • the degree of substitution is measured by the methanol nitrate method.
  • 1G methanol nitrate
  • 100 ml of methanol nitrate a solution obtained by adding 100 ml of special grade concentrated nitric acid to 1 g of anhydrous methanol
  • the mixture is shaken for about 2 hours to convert the terminal acid group from a salt type to a hydrogen type (for example, from COONa to COOH).
  • the sample is filtered through a glass filter 1G3, washed with 200 ml of 80% methanol, and then dried at 105 ° C.
  • R is a linear or branched alkyl group of C1 to C3 such as a methyl group, an ethyl group and a propyl group; a linear or branched alkyl group of C1 to C3 such as a hydroxymethyl group, a hydroxyethyl group and a hydroxypropyl group.
  • Hydroxyalkyl group arylalkyl group having C7 to C20 carbon atoms such as benzyl group and trityl group; cyanoalkyl group such as cyanoethyl group; carboxyalkyl group such as carboxymethyl group and carboxyethyl group; aminoalkyl group such as aminoethyl group Can be mentioned. Of these, a carboxyalkyl group is preferable as R, and a carboxymethyl group is more preferable.
  • the degree of substitution in cellulose ethers is also called the degree of etherification.
  • X is a group derived from C0 to C4 carboxylic acids such as formic acid, acetic acid, propionic acid and butyric acid; a group derived from C6 to C10 aromatic carboxylic acids such as benzoic acid and phthalic acid; p-toluenesulfonic acid.
  • Groups derived from sulfonic acid such as; groups derived from inorganic acids such as nitrate, sulfuric acid, phosphoric acid; and groups derived from xathogenic acid.
  • the degree of substitution in cellulose esters is also called the degree of esterification.
  • the cellulose derivative Since the cellulose derivative has high hydrophilicity, the affinity with the tobacco material is improved when it is used as a binder. As a result, the strength of the tobacco sheet is improved and spills are less likely to occur during use.
  • the cellulose derivative is soluble in organic solvents, especially ethanol. Therefore, as will be described later, when a mixture using ethanol as a medium is used in the production of a tobacco sheet, the viscosity of the mixture can be lowered, which is more advantageous than a mixture using water as a medium in transportation, coating process, etc. in production. Is. Further, since ethanol is more easily volatilized than water, it is possible to shorten the production time and reduce the energy cost at the time of drying in the above production method.
  • the amount of the cellulose derivative in the tobacco sheet is not particularly limited, but is preferably 0.1 to 10% by weight in terms of dry weight (weight excluding mixed water, the same applies hereinafter) with respect to the dry weight of the tobacco sheet. , More preferably 1 to 5% by weight, further 2 to 4% by weight. If the amount of the binder exceeds the upper limit value or is less than the lower limit value, the above effect may not be sufficiently achieved.
  • Cellulose ethers Methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxymethyl ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, benzyl cellulose, trityl cellulose, cyanoethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, aminoethyl cellulose
  • Cellulose esters Cellulose acetate, Cellulose formate, Organic acid esters such as propionate cellulose, butyrate cellulose, benzoate cellulose, phthalate cellulose, tosyl cellulose nitrate cellulose; inorganic acid esters such as cellulose sulfate, cellulose phosphate, cellulose xanthogenate
  • the tobacco material is a material derived from tobacco, and specific examples thereof include chopped dried tobacco leaves and crushed leaf tobacco.
  • a crushed leaf tobacco product is a particle obtained by crushing a leaf tobacco.
  • the pulverized leaf tobacco product can have, for example, a particle size D90 of 20 to 1000 ⁇ m, preferably 50 to 500 ⁇ m.
  • the pulverization can be performed using a known pulverizer, and may be either dry pulverization or wet pulverization. Therefore, the crushed leaf tobacco is also referred to as leaf tobacco particles.
  • the average particle size is determined by a laser diffraction / scattering method, and specifically, it is measured using a laser diffraction type particle size distribution measuring device (for example, LA-950 manufactured by HORIBA, Ltd.).
  • a laser diffraction type particle size distribution measuring device for example, LA-950 manufactured by HORIBA, Ltd.
  • the type of tobacco is not limited, and yellow varieties, Burley varieties, Orient varieties, native varieties, and other Nicotiana-Tabacam varieties, Nicotiana rustica varieties, and the like can be used.
  • the amount of the tobacco material in the tobacco sheet is not particularly limited, but is preferably 50 to 95% by weight, more preferably 60 to 90% by weight in terms of dry weight.
  • Aerosol-producing base material The tobacco sheet may contain an aerosol-forming base material.
  • the aerosol-forming substrate is a material that is vaporized and cooled by heating to form an aerosol, or is atomized to produce an aerosol.
  • Known aerosol-forming substrates can be used, and examples thereof include polyhydric alcohols such as glycerin and propylene glycol (PG), triethylcitrate (TEC), triacetin and the like having a boiling point of more than 100 ° C. Can be mentioned.
  • the amount of the aerosol-forming base material in the tobacco sheet is a dry weight (weight excluding mixed water, the same applies hereinafter), preferably 1 to 40% by weight, and more preferably 10 to 20% by weight. If the amount of the aerosol-forming base material exceeds the upper limit value, it may be difficult to manufacture the tobacco sheet, and if it is less than the lower limit value, the amount of smoke sensation may decrease.
  • the tobacco sheet may contain an emulsifier.
  • the emulsifier enhances the affinity between the lipophilic aerosol-forming substrate and the hydrophilic tobacco material. Therefore, the addition of an emulsifier is particularly effective when a lipophilic aerosol-forming substrate is used.
  • Known emulsifiers can be used, and examples thereof include emulsifiers having an HLB value of 8 to 18.
  • the amount of the emulsifier is not particularly limited, but is preferably 0.1 to 3 parts by weight, more preferably 1 to 2 parts by weight, based on 100 parts by weight of the tobacco sheet.
  • the tobacco sheet may contain cellulose other than tobacco.
  • cellulose other than tobacco include cellulose fiber and cellulose powder, and do not contain a cellulose derivative as a binder.
  • Tobacco sheets containing cellulose fibers have high strength.
  • the fiber include pulp fiber. Pulp fiber is an aggregate of cellulose fibers extracted from plants such as wood, and is usually used as a raw material for paper. Examples of the pulp fiber include used paper pulp, chemical pulp, mechanical pulp and the like.
  • the amount of the fiber in the tobacco sheet is preferably 1 to 20% by weight, more preferably 5 to 10% by weight in terms of dry weight from the viewpoint of mechanical strength and the like. However, since the miscellaneous taste can be reduced if the tobacco sheet does not contain the fiber, the tobacco sheet does not contain the fiber in one embodiment. In this case, the amount of the binder can be adjusted to increase the strength.
  • the tobacco sheet may contain a fragrance.
  • a fragrance is a substance that provides a scent and flavor.
  • the fragrance may be a natural fragrance or a synthetic fragrance.
  • One kind of fragrance may be used as a fragrance, or a mixture of a plurality of kinds of fragrances may be used.
  • As the fragrance any fragrance generally used in smoking articles can be used, and specific examples thereof will be described later.
  • the fragrance can be contained in the smoking article sheet in an amount such that the smoking article can provide a preferable scent and flavor, for example, the amount thereof is preferably 1 to 30% by weight in the tobacco sheet, more preferably. Is 2 to 20% by weight.
  • the type of the fragrance is not particularly limited, and from the viewpoint of imparting a good fragrance feeling, acetoanisol, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-annetol, star anis Oil, apple juice, peruvian balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butandione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamon Oil, Carobu Absolute, ⁇ -Carotene, Carrot Juice, L-Carbon, ⁇ -Cariophyllene, Cassia Bark Oil, Cedarwood Oil, Cellory Seed Oil, Chamomile Oil, Cinnamaldehyde, Cayhide Acid, Cinnam
  • the thickness of the tobacco sheet is not limited, but in one embodiment, it is preferably 20 to 2000 ⁇ m, more preferably 100 to 1500 ⁇ m, and further preferably 100 to 1000 ⁇ m.
  • the tobacco sheet has a tensile stress of preferably 1.7 N / mm or more, more preferably 2 N / mm or more, still more preferably 3 N / mm or more.
  • the tobacco sheet preferably has an arithmetic mean surface roughness Sa of 0.03 mm or less.
  • Sa is an index of surface roughness, and when the tobacco sheet of the present invention has Sa in the above range, spillage from the surface is reduced. From this viewpoint, the upper limit of Sa is more preferably 0.02 mm or less. Sa is measured by a known method, but it is preferably measured by the following procedure using a microscope (for example, VK-X100 manufactured by KEYENCE).
  • Tobacco segment A tobacco segment used for smoking articles can be produced from a tobacco sheet.
  • the tobacco segment comprises, in one aspect, a tubular wrapper and a tobacco sheet filled in the wrapper in a spiral shape (see FIG. 1A).
  • 20A is a tobacco segment
  • 1 is a tobacco sheet
  • 22 is a wrapper, and is usually paper.
  • the tobacco segment is preferably rod-shaped, having a length of 15 to 80 mm and a diameter of about 5 to 10 mm.
  • the tobacco segment 20A shown in FIG. 1 (A) can be cut to have an aspect ratio (length / diameter) of about 0.5 to 1.2 (see FIG. 1 (B)).
  • the tobacco segment 20A includes a tubular wrapper 22 in another embodiment, and includes a tobacco sheet 1 folded and filled in the wrapper.
  • the ridges created by folding are substantially parallel to the longitudinal direction of the segment (see FIG. 1 (C)).
  • the tobacco segment 20A is preferably rod-shaped, has a length of 15 to 80 mm and a diameter of about 5 to 10 mm.
  • it is preferable that the tobacco sheet 1 is previously subjected to surface wrinkling processing such as pleating or crimping.
  • the tobacco segment 20A includes a tubular wrapper 22 in another embodiment, and includes a cut piece 1c of a tobacco sheet filled in the wrapper (see FIG. 1 (D)).
  • the tobacco segment 20A is preferably rod-shaped, has a length of 15 to 80 mm and a diameter of about 5 to 10 mm.
  • the size of the cut piece is not limited, but for example, the length of the longest side can be about 2 to 20 mm and the width can be about 0.5 to 1.5 mm.
  • the tobacco segment 20A is provided with a tubular wrapper 22 in another embodiment, and is provided with a strand type engraving filled in the wrapper (see FIG. 1 (E)).
  • the strand type engraving is filled so that its longitudinal direction is substantially parallel to the longitudinal direction of the wrapper 22.
  • the width of the strand type engraving can be about 0.5 to 1.5 mm.
  • the tobacco segment 20A comprises a tubular wrapper 22 in another embodiment, and includes a tobacco engraved filling randomly filled in the wrapper.
  • Tobacco carving is a cut piece and is different from strand type carving.
  • the tobacco sheet can be manufactured by any method, but is preferably manufactured by a method including the following steps. Step 1, preparing a mixture containing at least a tobacco material, the cellulose derivative, and a medium. Step 2 of developing the mixture on a substrate to prepare a wet sheet, and step 3 of drying the wet sheet.
  • Step 1 the tobacco material, the cellulose derivative as a binder, and the medium are mixed. If desired, aerosol-forming substrates, emulsifiers, or fragrances can be added. The blending amount of each component is adjusted so that the above-mentioned amount can be achieved.
  • the medium is preferably water or a water-soluble organic solvent having a boiling point of less than 100 ° C. such as ethanol as a main component, and more preferably water or ethanol.
  • the mixing method is not limited, and known equipment such as a mixer and a kneader can be used.
  • the solid content concentration of the mixture obtained by mixing is not limited, and is appropriately prepared to be suitable for step 2.
  • the upper limit of the solid content concentration is preferably 98% by weight or less, 90% by weight or less, or 80% by weight or less, and the lower limit thereof is preferably 10% by weight or more, 20% by weight or more, and 30% by weight or more. , 40% by weight or more, or 50% by weight or more.
  • Step 2 the mixture is developed on a substrate to prepare a wet sheet.
  • the base material is not limited, and examples thereof include an inorganic material base material such as a glass plate, a metal base material such as an aluminum plate, an organic material base material such as a PET film and a fluoropolymer film, and a fiber material base material such as a non-woven fabric.
  • the method for developing the mixture on the substrate is not limited, and examples thereof include a rolling method in which the mixture is expanded using a roller, an extrusion method in which the mixture is extruded from a die, and a casting method in which the mixture is cast.
  • the wet sheet is dried. Drying can be carried out according to a known method.
  • the wet sheet can be air-dried at room temperature or heated to dry.
  • the heating temperature is also not limited and can be, for example, 60 to 150 ° C.
  • the dried sheet is isolated from the substrate to obtain a tobacco sheet.
  • a binder and, if necessary, additives such as fragrance and lipid to the crushed tobacco raw material (for example, tobacco particles) and mix them. Since this mixing is preferably a dry blend, it is preferable to use a mixer as a mixer.
  • a medium such as water and, if necessary, an aerosol-forming base material such as glycerin are added to the dry blend and mixed with a mixer to prepare a wet powder (wet powder).
  • the amount of the medium in the wet powder can be 20 to 80% by weight, preferably 20 to 40% by weight, but it may be 20 to 50% by weight because the pressure expansion is performed in the step 2.
  • the solid content concentration of the wet powder is preferably 50 to 90% by weight.
  • the wet powder is kneaded using a uniaxial or multiaxial kneader, for example, a kneader (DG-1 manufactured by Dalton Co., Ltd.).
  • a kneader DG-1 manufactured by Dalton Co., Ltd.
  • the kneading is preferably carried out until the medium is completely spread, for example, it is preferable to knead until the color of the mixture becomes uniform visually.
  • Step 2 pressure exhibition
  • the mixture after kneading is sandwiched between two base films and passed between a pair of rollers using a calendar device (for example, manufactured by Yuri Roll Machinery Co., Ltd.) until the specified thickness (more than 100 ⁇ m) is reached.
  • a calendar device for example, manufactured by Yuri Roll Machinery Co., Ltd.
  • the pressure expansion by the rollers can be performed multiple times.
  • the base film is preferably a non-adhesive film such as a fluoropolymer film, and specific examples thereof include a Teflon (registered trademark) film.
  • Process 3 Peel off one of the substrate films in the laminate.
  • the laminate is dried using a ventilation dryer.
  • the drying temperature is preferably 50 to 100 ° C., and the drying time can be 1 to 2 minutes.
  • the remaining base film is peeled off and further dried under the above conditions to obtain a tobacco sheet. By performing the drying in this way, it is possible to prevent the tobacco sheet from adhering to other base materials.
  • the tobacco sheet obtained by this method is also called a "laminate sheet".
  • the laminated sheet has a smooth surface and is preferable because it can suppress the occurrence of spillage when it comes into contact with other members. Further, this method is suitable for producing a sheet having a thickness of 300 ⁇ m or less.
  • Step 1 in this method is as described in the rolling method.
  • Prepare wet powder (wet powder).
  • the amount of the medium in the wet powder can be selected in the range of 20 to 80% by weight, but is preferably 20 to 40% by weight.
  • Step 2 wet powder is extruded from a die provided with a predetermined gap to form a wet sheet on a substrate.
  • a known extruder can be used for extrusion.
  • Process 3 In this step, the wet sheet is dried to obtain a tobacco sheet. The drying conditions are as described in the rolling method.
  • the tobacco sheet obtained by this method is also referred to as an "extruded sheet".
  • the extruded sheet is preferable because it has a smooth surface and can suppress the occurrence of spillage when it comes into contact with other members. This method is suitable for producing a sheet having a thickness of 200 ⁇ m or more.
  • the sheet formed by applying pressure in this way is called a "pressure molded sheet", and the "pressure molded sheet” includes a “laminated sheet” and an “extruded sheet".
  • the laminated sheet is a sheet obtained by compressing the mixture with a roller at least once to a target thickness and then drying it to a target moisture content.
  • the extruded sheet is a sheet obtained by extruding a mixture from a T-die or the like to a target thickness and then drying it to a target water content. Compression and extrusion may be combined in a pressure molded sheet. For example, the mixture may be extruded and then further compressed to form a sheet.
  • Process 1 Step 1 in this method can be carried out by any method.
  • a mixture can be prepared by mixing a tobacco raw material having a desired particle size, a cellulose derivative, a medium, and if necessary, an additive with a mixer or the like. Since the solid content concentration of the mixture obtained in this step is preferably about 3 to 15% by weight, the mixture is also referred to as a slurry.
  • Step 2 the slurry is cast on the substrate to form a wet sheet. Casting can be performed as known.
  • Process 3 the wet sheet is dried to obtain a tobacco sheet.
  • the drying conditions are as described in the rolling method.
  • the tobacco sheet obtained by this method is also called a "cast sheet".
  • smoking articles examples include flavor-sucking articles in which the user tastes the flavor by suction, and smokeless tobacco (smokeless smoking articles) in which the user tastes the flavor by directly including the product in the nasal cavity and oral cavity.
  • the flavor suction article can be roughly classified into a combustion type smoking article typified by a conventional cigarette and a non-combustion type smoking article.
  • the tobacco sheet of the present invention is suitable for a flavor suction article.
  • combustion-type flavor suction article examples include cigarettes, pipes, pipes, cigars, cigarillos, and the like.
  • the non-combustion heating type flavor suction article may be heated by a heating device separate from the article, or may be heated by a heating device integrated with the article.
  • the non-combustion heating type flavor suction article and the heating device are collectively referred to as a "non-combustion heating type smoking system".
  • An example of a non-combustion heating type smoking system will be described below with reference to FIGS. 2 and 3.
  • FIG. 2 is a schematic cross-sectional view showing an example of a non-combustion heating type smoking system, and shows a state before inserting the heater 12 into the tobacco segment 20A of the non-combustion heating type flavor suction article 20. At the time of use, the heater 12 is inserted into the tobacco segment 20A.
  • FIG. 3 is a cross-sectional view of the non-combustion heating type flavor suction article 20.
  • the non-combustion heating type smoking system includes a non-combustion heating type flavor suction article 20 and a heating device 10 for heating the tobacco segment 20A from the inside.
  • the non-combustion heating type smoking system is not limited to the configuration shown in FIG.
  • the heating device 10 shown in FIG. 2 includes a body 11 and a heater 12.
  • the body 11 may include a battery unit and a control unit.
  • the heater 12 can be a heater due to electrical resistance and is inserted into the tobacco segment 20A to heat the tobacco segment 20A.
  • the tobacco sheet of the present invention is highly effective when the tobacco segment 20A is heated from the inside as shown in FIG. In such a heating method, the tobacco sheet and the heater come into direct contact with each other, so that spills are likely to occur in the past. However, since the tobacco sheet of the present invention is less likely to cause spillage even in such a case, the tobacco sheet of the present invention is more effective in the internal heating method.
  • the aspect of the non-combustion heating type flavor suction article 20 is not limited to this, and in another aspect, the tobacco segment 20A is heated from the outside.
  • the heating temperature by the heating device 10 is not particularly limited, but is preferably 400 ° C. or lower, more preferably 50 to 400 ° C., and even more preferably 150 to 350 ° C.
  • the heating temperature refers to the temperature of the heater 12 of the heating device 10.
  • the non-combustion heating type flavor suction article 20 (hereinafter, simply referred to as “flavor suction article 20”) has a cylindrical shape.
  • the circumference of the flavor suction article 20 is preferably 16 mm to 27 mm, more preferably 20 mm to 26 mm, and even more preferably 21 mm to 25 mm.
  • the total length (horizontal length) of the flavor suction article 20 is not particularly limited, but is preferably 40 mm to 90 mm, more preferably 50 mm to 75 mm, and even more preferably 50 mm to 60 mm.
  • the flavor suction article 20 is composed of a cigarette segment 20A, a filter portion 20C constituting a mouthpiece, and a connecting portion 20B connecting these.
  • the tobacco segment 20A is columnar, and its total length (length in the axial direction) is preferably, for example, 5 to 100 mm, more preferably 10 to 50 mm, and further preferably 10 to 25 mm. preferable.
  • the shape of the cross section of the tobacco segment 20A is not particularly limited, but may be, for example, a circle, an ellipse, a polygon, or the like.
  • the tobacco segment 20A has a tobacco sheet or a material 21 derived from the tobacco sheet, and a wrapper 22 wrapped around the tobacco sheet 20A. Further, the wrapper 22 may be the tobacco sheet 1 of the present invention.
  • the filter unit 20C has a cylindrical shape.
  • the filter unit 20C has a rod-shaped first segment 25 filled with cellulose acetate acetate fiber and a rod-shaped second segment 26 also filled with cellulose acetate acetate fiber.
  • the first segment 25 is located on the tobacco segment 20A side.
  • the first segment 25 may have a hollow portion.
  • the second segment 26 is located on the mouthpiece side.
  • the second segment 26 is solid.
  • the first segment 25 is composed of a first packed layer (cellulose acetate acetate fiber) 25a and an inner plug wrapper 25b wound around the first packed layer 25a.
  • the second segment 26 is composed of a second packed layer (cellulose acetate acetate fiber) 26a and an inner plug wrapper 26b wound around the second packed layer 26a.
  • the first segment 25 and the second segment 26 are connected by an outer plug wrapper 27.
  • the outer plug wrapper 27 is adhered to the first segment 25 and the second segment 26 with a vinyl acetate emulsion-based adhesive
  • the length of the filter portion 20C is, for example, 10 to 30 mm
  • the length of the connecting portion 20B is, for example, 10 to 30 mm
  • the length of the first segment 25 is, for example, 5 to 15 mm
  • the length of the second segment 26 is, for example, 5 to 15 mm. can do.
  • the length of each of these individual segments is an example, and can be appropriately changed depending on the manufacturing aptitude, the required quality, the length of the tobacco segment 20A, and the like.
  • the first segment 25 (center hole segment) is composed of a first packed layer 25a having one or more hollow portions and an inner plug wrapper 25b covering the first packed layer 25a.
  • the first segment 25 has a function of increasing the strength of the second segment 26.
  • the first packed layer 25a of the first segment 25 is filled with, for example, cellulose acetate fibers at a high density.
  • a plasticizer containing triacetin is added to the cellulose acetate fiber in an amount of, for example, 6 to 20% by mass based on the mass of cellulose acetate and cured.
  • the hollow portion of the first segment 25 has, for example, an inner diameter of ⁇ 1.0 to ⁇ 5.0 mm.
  • the first packed layer 25a of the first segment 25 may be composed of, for example, a relatively high fiber filling density, or may be equivalent to the fiber filling density of the second packed layer 26a of the second segment 26 described later. May be good. Therefore, at the time of suction, air or aerosol flows only in the hollow portion, and almost no air or aerosol flows in the first packed bed 25a.
  • the length of the second segment 26 can be shortened and the first segment 25 can be lengthened by that amount.
  • Replacing the shortened second segment 26 with the first segment 25 is effective for increasing the delivery amount of the aerosol component. Since the first packed layer 25a of the first segment 25 is a fiber packed layer, the feeling of touch from the outside during use does not cause a sense of discomfort to the user.
  • the second segment 26 is composed of a second packed layer 26a and an inner plug wrapper 26b that covers the second packed layer 26a.
  • the second segment 26 (filter segment) is filled with cellulose acetate fibers at a general density and has the filtering performance of a general aerosol component.
  • the filtration performance for filtering the aerosol (mainstream smoke) emitted from the tobacco segment 20A may be different between the first segment 25 and the second segment 26. At least one of the first segment 25 and the second segment 26 may contain a fragrance.
  • the structure of the filter unit 20C is arbitrary, and may be a structure having a plurality of segments as described above, or may be composed of a single segment. Further, the filter unit 20C may be composed of one segment. In this case, the filter unit 20C may be composed of either a first segment or a second segment.
  • the connecting portion 20B has a cylindrical shape.
  • the connecting portion 20B has a paper tube 23 formed in a cylindrical shape by, for example, thick paper.
  • the connecting portion 20B may be filled with a cooling member for cooling the aerosol.
  • the cooling member include a sheet of a polymer such as polylactic acid, and the sheet can be folded and filled.
  • a support portion may be provided between the tobacco segment 20A and the connecting portion 20B to prevent the position of the tobacco segment 20A from fluctuating.
  • the support portion can be made of a known material such as a center hole filter such as the first segment 25.
  • the wrapper 28 is wound in a cylindrical shape on the outside of the tobacco segment 20A, the connecting portion 20B, and the filter portion 20C, and these are integrally connected.
  • a vinyl acetate emulsion-based adhesive is applied to one surface (inner surface) of the wrapper 28 on the entire surface or substantially the entire surface except the vicinity of the ventilation hole portion 24.
  • the plurality of ventilation holes 24 are formed by laser processing from the outside after the tobacco segment 20A, the connecting portion 20B, and the filter portion 20C are integrated by the wrapper 28.
  • the ventilation hole portion 24 has two or more through holes so as to penetrate the connecting portion 20B in the thickness direction.
  • the two or more through holes are formed so as to be arranged radially when viewed from the extension line of the central axis of the flavor suction article 20.
  • the ventilation hole portion 24 is provided in the connecting portion 20B, but may be provided in the filter portion 20C.
  • the two or more through holes of the ventilation hole portion 24 are provided side by side in a row at regular intervals on one ring, but at regular intervals on the two rings.
  • the vent holes 24 in one row or two rows may be provided side by side in two rows, or the ventilation holes 24 in one row or two rows may be provided side by side in a discontinuous or irregular manner.
  • Example 1 Tobacco leaves were pulverized using a pulverizer (ACM-5 manufactured by Hosokawa Micron) so that D90 was 50 to 800 ⁇ m to obtain leaf tobacco particles. D90 was measured with a master sizer (manufactured by malvern). Carboxymethyl cellulose (Nippon Paper Industries, Ltd., Sunrose FF30MC) as a binder was dry-blended with leaf tobacco particles using a mixer. Next, glycerin as an aerosol-forming base material and water as a medium were added to the dry blend, and the mixture was mixed with a mixer to prepare a wet powder.
  • the composition of each component is as follows.
  • the tobacco leaf crushed product, glycerin, and the binder indicate the dry matter weight
  • the water indicates the total amount of the charged weight and the water content contained in the tobacco leaf crushed product, glycerin, and the binder.
  • the wet powder was kneaded 6 times at room temperature to obtain a mixture.
  • the die shape was T-shaped (T-die), and the screw rotation speed was 38.5 rpm.
  • Teflon (registered trademark) film was peeled off from the laminate and dried at 80 ° C. for 1 to 2 minutes using a ventilation dryer. Then, another film was peeled off and the wet sheet was dried under the same conditions to produce the tobacco sheet of the present invention.
  • Examples 2 to 5 Tobacco sheets were produced and evaluated by the same method as in Example 1 except that carboxymethyl cellulose shown in Table 2 (both manufactured by Nippon Paper Industries, Ltd.) was used as the binder.
  • Example 1 Tobacco sheets were produced and evaluated by the same method as in Example 1 except that carboxymethyl cellulose (manufactured by Nippon Paper Industries, Ltd.) shown in Table 2 was used as the binder. These results are shown in Table 3.
  • the physical characteristics of the finished sheet indicate the physical characteristics of the sheet that has been dried as described above and has not been dried until it is completely dried.
  • the evaluation method will be described below.
  • the non-combustion internal heating type smoking system shown in FIG. 2 was prepared. Tobacco sheets prepared in each example were cut to prepare chopped pieces. The time was filled in a wrapper 22 having a length of 12 mm and a diameter of 7 mm in an amount of 70% by volume to prepare a tobacco segment 20A. The system was subjected to a smoking test with a smoking machine (14 puffs, CIR conditions, constant heating at 350 ° C.). After the smoking test, ticks were gently removed from the tobacco segment 20A. Then, the wrapper 22 was newly filled with 70% by volume and subjected to the second smoking test. In this way, a total of 20 smoking tests were performed, and the total volume of spills remaining in the wrapper 22 was measured.
  • Tobacco sheet 1c Tobacco sheet cut pieces 10 Heating device 11 Body 12 Heater 20 Non-combustion heating type flavor suction article 20A Tobacco segment 20B Connection part 20C Filter part 21 Tobacco sheet or material derived from it 22 Wrapper 23 Paper tube 24 Vent 25 1st segment 25a 1st packed layer 25b Inner plug wrapper 26 2nd segment 26a 2nd packed layer 26b Inner plug wrapper 27 Outer plug wrapper 28 Wrapper

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Tobacco Products (AREA)

Abstract

This tobacco sheet includes: a tobacco material; and a cellulose derivative having a degree of substitution of 0.65 or higher.

Description

たばこシートTobacco sheet
　本発明は、たばこシートに関する。 The present invention relates to a tobacco sheet.
　たばこシートを加熱して生成させた香味成分を吸引する非燃焼型喫煙物品に関する技術が多々提案されている（例えば特許文献１）。 Many techniques related to non-combustion type smoking articles that suck the flavor component generated by heating a tobacco sheet have been proposed (for example, Patent Document 1).
特許第５２９２４１０号Patent No. 5292410
　従来のたばこシートは使用中または使用後に、いわゆる刻こぼれと称される微粉が発生し、衣服に付着する等の取扱い上の不具合が生じていた。かかる事情を鑑み、本発明は、刻こぼれを低減したたばこシートを提供することを課題とする。 The conventional tobacco sheet had some handling problems such as fine powder generated during or after use, so-called spillage, and adhering to clothes. In view of such circumstances, it is an object of the present invention to provide a tobacco sheet with reduced spillage.
　発明者らは、特定のバインダーを用いることで前記課題を解決できることを見出した。すなわち、前記課題は以下の本発明によって解決される。
（１）たばこ材料と、
　置換度が０．６５以上であるセルロース誘導体と、を含む、
　たばこシート。
（２）前記置換度が０．７以上である、（１）に記載のシート。
（３）前記置換度が０．８以上である、（２）に記載のシート。
（４）前記セルロース誘導体がカルボキシアルキル化セルロースである、（１）～（３）のいずれかに記載のシート。
（５）算術平均表面粗さＳａが０．０３ｍｍ以下である、（１）～（４）のいずれかに記載のシート。
（６）圧力成形シートである、（１）～（５）のいずれかに記載のシート。
（７）少なくとも、たばこ材料と、前記セルロース誘導体と、媒体を含む混合物を調製する工程１、
　前記混合物を基材上に展開してウェットシートを調製する工程２、ならびに
　前記ウェットシートを乾燥する工程３、
を備える、（１）～（６）のいずれかに記載のシートの製造方法。
（８）前記工程１が、たばこ材料と、前記セルロース誘導体と、媒体とを、一軸または多軸混練機にて混練することを含む、（７）に記載の製造方法。
（９）前記工程２が、混合物を、ローラを用いて圧展する、またはダイから押出すことを含む、（７）または（８）に記載の製造方法。
（１０）前記工程２が、２つの基材フィルムの間にウェットシートが存在するラミネートシートを調製することを含む、（９）に記載の製造方法。
（１１）前記（１）～（６）のいずれかに記載のたばこシートまたはこれに由来する材料を備える、非燃焼加熱型喫煙物品。 The inventors have found that the above problems can be solved by using a specific binder. That is, the above problem is solved by the following invention.
(1) Tobacco material and
Containing a cellulose derivative having a degree of substitution of 0.65 or more,
Tobacco sheet.
(2) The sheet according to (1), wherein the degree of substitution is 0.7 or more.
(3) The sheet according to (2), wherein the degree of substitution is 0.8 or more.
(4) The sheet according to any one of (1) to (3), wherein the cellulose derivative is carboxyalkylated cellulose.
(5) The sheet according to any one of (1) to (4), wherein the arithmetic average surface roughness Sa is 0.03 mm or less.
(6) The sheet according to any one of (1) to (5), which is a pressure-formed sheet.
(7) At least a step of preparing a mixture containing a tobacco material, the cellulose derivative, and a medium 1.
Step 2 of developing the mixture on a substrate to prepare a wet sheet, and step 3 of drying the wet sheet.
The sheet manufacturing method according to any one of (1) to (6).
(8) The production method according to (7), wherein the step 1 comprises kneading the tobacco material, the cellulose derivative, and the medium with a uniaxial or multiaxial kneader.
(9) The production method according to (7) or (8), wherein the step 2 comprises compressing the mixture using a roller or extruding the mixture from a die.
(10) The production method according to (9), wherein the step 2 comprises preparing a laminated sheet in which a wet sheet is present between two base films.
(11) A non-combustion heating type smoking article comprising the tobacco sheet according to any one of (1) to (6) above or a material derived from the tobacco sheet.
　本発明によって、刻こぼれを低減したたばこシートを提供できる。 According to the present invention, it is possible to provide a tobacco sheet with reduced spillage.
たばこシートを用いたたばこセグメントの例を示す概要図Schematic diagram showing an example of a tobacco segment using a tobacco sheet 非燃焼加熱型喫煙システムの一例を示す断面模式図Schematic cross-sectional view showing an example of a non-combustion heating type smoking system 非燃焼加熱型香味吸引物品の一例を示す断面模式図Schematic cross-sectional view showing an example of a non-combustion heating type flavor suction article
　以下、本発明を詳細に説明する。本発明において「Ｘ～Ｙ」はその端値であるＸおよびＹを含む。
１．たばこシート
　たばこシートとは喫煙物品に用いられるシートであり、たばこ材料と、バインダーとして置換度が０．６５以上であるセルロース誘導体を含む。 Hereinafter, the present invention will be described in detail. In the present invention, "X to Y" includes X and Y which are fractional values thereof.
1. 1. Tobacco sheet The tobacco sheet is a sheet used for smoking articles, and contains a tobacco material and a cellulose derivative having a degree of substitution of 0.65 or more as a binder.
（１）バインダー
　バインダーはたばこ材料同士、またはたばこ材料と他の成分を結合するための接着剤である。本発明においては、バインダーとして置換度が０．６５以上であるセルロース誘導体を用いる。セルロース誘導体とはグルコノピラノース残基の－ＯＨ基が変性されているセルロースである。－ＯＨ基が、－ＯＲ基（Ｒは有機基）に変性されているものをセルロースエーテル類、－ＯＸ基（Ｘは酸に由来する基）に変性されているものをセルロースエステル類ともいい、グルコノピラノース残基の－ＯＨ基の少なくとも一つが－ＯＲ基、かつ少なくとも一つが－ＯＸ基であるものをセルロースエーテルエステル類ともいう。本発明においてはいずれも用いることができる。 (1) Binder A binder is an adhesive for binding tobacco materials to each other or to tobacco materials and other components. In the present invention, a cellulose derivative having a degree of substitution of 0.65 or more is used as the binder. The cellulose derivative is cellulose in which the -OH group of the gluconopyranose residue is denatured. Those in which the -OH group is modified to the -OR group (R is an organic group) are also referred to as cellulose ethers, and those in which the -OX group (X is a group derived from an acid) are modified are also referred to as cellulose esters. Those in which at least one of the -OH groups of the gluconopyranose residue is a -OR group and at least one is a -OX group are also referred to as cellulose ether esters. Any of them can be used in the present invention.
　置換度とは、１つのグルコノピラノース残基当たりの置換基の数、すなわち変性されたＯＨ基の数である。本発明で用いる置換度は好ましくは０．６５以上、より好ましくは０．７以上、さらに好ましくは０．８以上である。また、置換度の上限は、好ましくは３．０以下、より好ましくは２．０以下、さらに好ましくは１．６以下、特に好ましくは１．０以下である。 The degree of substitution is the number of substituents per gluconopyranose residue, that is, the number of denatured OH groups. The degree of substitution used in the present invention is preferably 0.65 or more, more preferably 0.7 or more, still more preferably 0.8 or more. The upper limit of the degree of substitution is preferably 3.0 or less, more preferably 2.0 or less, still more preferably 1.6 or less, and particularly preferably 1.0 or less.
　置換度は、公知の方法で測定される。例えば、置換度は硝酸メタノール法で測定される。当該方法は、１）試料約２．０ｇを精秤し、３００ｍｌ共栓三角フラスコに入れる。１００ｍｌの硝酸メタノール（無水メタノール１ｇに特級濃硝酸１００ｍｌを加えた液）を添加し、２時間程度振とうして末端の酸基を塩型から水素型（例えばＣＯＯＮａからＣＯＯＨ）に変換する。２）当該試料をガラスフィルター１Ｇ３にてろ過し、８０％メタノール２００ｍｌで洗浄した後、１０５℃で２時間乾燥する。３）絶乾した当該試料を１～１．５ｇ程度精秤し、３００ｍｌ共栓三角フラスコに入れ、８０％メタノール１５０ｍｌで湿潤し、０．１ＮのＮａＯＨ　５０ｍｌを加え、室温で２時間振とうする。指示薬としてフェノールフタレインを用い、０．１Ｎ硫酸で過剰のＮａＯＨを逆滴定する。４）以下の式より置換度を求める。
　　置換度＝０．１６２Ａ／（１－０．０５８Ａ）
　　Ａ＝５０×Ｆ’－前記硫酸量（ｍｌ）×Ｆ／絶乾試料重量（ｇ）×０．１
　　Ｆ：前記硫酸のファクター
　　Ｆ’：前記ＮａＯＨのファクター The degree of substitution is measured by a known method. For example, the degree of substitution is measured by the methanol nitrate method. In this method, 1) about 2.0 g of a sample is precisely weighed and placed in a 300 ml Erlenmeyer flask. 100 ml of methanol nitrate (a solution obtained by adding 100 ml of special grade concentrated nitric acid to 1 g of anhydrous methanol) is added, and the mixture is shaken for about 2 hours to convert the terminal acid group from a salt type to a hydrogen type (for example, from COONa to COOH). 2) The sample is filtered through a glass filter 1G3, washed with 200 ml of 80% methanol, and then dried at 105 ° C. for 2 hours. 3) Weigh 1 to 1.5 g of the absolutely dried sample, put it in a 300 ml Erlenmeyer flask, moisten it with 150 ml of 80% methanol, add 50 ml of 0.1N NaOH, and shake it at room temperature for 2 hours. .. Phenolphthalein is used as an indicator and excess NaOH is back titrated with 0.1N sulfuric acid. 4) Obtain the degree of substitution from the following equation.
Degree of substitution = 0.162A / (1-0.058A)
A = 50 x F'-the amount of sulfuric acid (ml) x F / weight of the absolute dry sample (g) x 0.1
F: Factor of the sulfuric acid F': Factor of the NaOH
　セルロースエーテル類において、Ｒは最大で３つ存在するが、各Ｒは同じであってもよいし、異なっていてもよい。Ｒとしては、メチル基、エチル基、プロピル基等のＣ１～Ｃ３の直鎖または分岐状のアルキル基；ヒドロキシメチル基、ヒドロキシエチル基、ヒドロキシプロピル基等のＣ１～Ｃ３の直鎖または分岐状のヒドロキシアルキル基；ベンジル基、トリチル基等の炭素数Ｃ７～Ｃ２０のアリールアルキル基；シアノエチル基等のシアノアルキル基；カルボキシメチル基、カルボキシエチル基等のカルボキシアルキル基；アミノエチル基等のアミノアルキル基が挙げられる。中でも、Ｒとしてはカルボキシアルキル基が好ましく、カルボキシメチル基がより好ましい。セルロースエーテル類における置換度をエーテル化度ともいう。 In cellulose ethers, there are a maximum of three Rs, but each R may be the same or different. R is a linear or branched alkyl group of C1 to C3 such as a methyl group, an ethyl group and a propyl group; a linear or branched alkyl group of C1 to C3 such as a hydroxymethyl group, a hydroxyethyl group and a hydroxypropyl group. Hydroxyalkyl group; arylalkyl group having C7 to C20 carbon atoms such as benzyl group and trityl group; cyanoalkyl group such as cyanoethyl group; carboxyalkyl group such as carboxymethyl group and carboxyethyl group; aminoalkyl group such as aminoethyl group Can be mentioned. Of these, a carboxyalkyl group is preferable as R, and a carboxymethyl group is more preferable. The degree of substitution in cellulose ethers is also called the degree of etherification.
　セルロースエテル類において、Ｘは最大で３つ存在するが、各Ｘは同じであってもよいし、異なっていてもよい。Ｘとしては、ギ酸、酢酸、プロピオン酸、酪酸等のＣ０～Ｃ４のカルボン酸に由来する基；安息香酸、フタル酸等のＣ６～Ｃ１０の芳香族カルボン酸に由来する基；ｐ－トルエンスルホン酸等のスルホン酸に由来する基；硝酸、硫酸、リン酸等の無機酸に由来する基；キサトゲン酸に由来する基が挙げられる。セルロースエステル類における置換度をエステル化度ともいう。 In cellulose ethers, there are a maximum of three Xs, but each X may be the same or different. X is a group derived from C0 to C4 carboxylic acids such as formic acid, acetic acid, propionic acid and butyric acid; a group derived from C6 to C10 aromatic carboxylic acids such as benzoic acid and phthalic acid; p-toluenesulfonic acid. Groups derived from sulfonic acid such as; groups derived from inorganic acids such as nitrate, sulfuric acid, phosphoric acid; and groups derived from xathogenic acid. The degree of substitution in cellulose esters is also called the degree of esterification.
　前記セルロース誘導体は親水性が高いので、バインダーとしてこれを用いた場合にたばこ材料との親和性が向上する。その結果、たばこシートの強度が向上し使用時に刻こぼれが生じにくくなる。 Since the cellulose derivative has high hydrophilicity, the affinity with the tobacco material is improved when it is used as a binder. As a result, the strength of the tobacco sheet is improved and spills are less likely to occur during use.
　さらに、前記セルロース誘導体は有機溶媒、特にエタノールに可溶である。そのため、後述するようにたばこシートの製造においてエタノールを媒体とする混合物を用いる場合、混合物の粘度を低くすることができるので水を媒体とする混合物よりも、製造における輸送や塗工工程等において有利である。また、エタノールは水に比べて揮発しやすいため、前記製造方法において製造時間の短縮や乾燥時のエネルギーコストの低減等が可能となる。 Furthermore, the cellulose derivative is soluble in organic solvents, especially ethanol. Therefore, as will be described later, when a mixture using ethanol as a medium is used in the production of a tobacco sheet, the viscosity of the mixture can be lowered, which is more advantageous than a mixture using water as a medium in transportation, coating process, etc. in production. Is. Further, since ethanol is more easily volatilized than water, it is possible to shorten the production time and reduce the energy cost at the time of drying in the above production method.
　たばこシートにおける前記セルロース誘導体の量は、特に限定されないが、たばこシートの乾燥重量に対して、乾燥重量（混入している水を除いた重量、以下同様）で好ましくは０．１～１０重量％、より好ましくは１～５重量％、さらに２～４重量％である。バインダーの量が上限値を超えるまたは下限値未満であると、前記効果が十分に奏されない可能性がある。 The amount of the cellulose derivative in the tobacco sheet is not particularly limited, but is preferably 0.1 to 10% by weight in terms of dry weight (weight excluding mixed water, the same applies hereinafter) with respect to the dry weight of the tobacco sheet. , More preferably 1 to 5% by weight, further 2 to 4% by weight. If the amount of the binder exceeds the upper limit value or is less than the lower limit value, the above effect may not be sufficiently achieved.
　以下にセルロース誘導体の具体例を例示する。
　セルロースエーテル類：メチルセルロース、エチルセルロース、ヒドロキシエチルセルロース、ヒドロキシメチルエチルセルロース、ヒドロキシプロピルセルロース、ヒドロキシプロピルメチルセルロース、ベンジルセルロース、トリチルセルロース、シアノエチルセルロース、カルボキシメチルセルロース、カルボキシエチルセルロース、アミノエチルセルロース
　セルロースエステル類：酢酸セルロース、ギ酸セルロース、プロピオン酸セルロース、酪酸セルロース、安息香酸セルロース、フタル酸セルロース、トシルセルロース硝酸セルロース等の有機酸エステル類；硫酸セルロース、リン酸セルロース、セルロースキサントゲン酸塩等の無機酸エステル類 Specific examples of cellulose derivatives are shown below.
Cellulose ethers: Methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxymethyl ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, benzyl cellulose, trityl cellulose, cyanoethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, aminoethyl cellulose Cellulose esters: Cellulose acetate, Cellulose formate, Organic acid esters such as propionate cellulose, butyrate cellulose, benzoate cellulose, phthalate cellulose, tosyl cellulose nitrate cellulose; inorganic acid esters such as cellulose sulfate, cellulose phosphate, cellulose xanthogenate
（２）たばこ材料
　たばこ材料とは、たばこに由来する材料であり、具体的に乾燥したたばこ葉を刻んだもの、または葉たばこ粉砕物等が挙げられる。葉たばこ粉砕物は、葉たばこを粉砕することにより得られる粒子である。葉たばこ粉砕物は、例えば、その粒径Ｄ９０を２０～１０００μｍ、好ましくは５０～５００μｍとすることができる。粉砕は、公知の粉砕機を用いて行うことができ、乾式粉砕、湿式粉砕のいずれであってもよい。したがって、葉たばこ粉砕物は葉たばこ粒子とも称される。本発明において平均粒径は、レーザ回折・散乱法により求められ、具体的にはレーザ回折式粒子径分布測定装置（例えば、堀場製作所　ＬＡ－９５０）を用いて測定される。また、たばこの種類は限定されず、黄色種、バーレー種、オリエント種、在来種、および、その他のニコチアナ・タバカム系品種やニコチアナ・ルスチカ系品種等を用いることができる。たばこシートにおけるたばこ材料の量は、特に限定されないが、乾燥重量で、好ましくは５０～９５重量％、より好ましくは６０～９０重量％である。 (2) Tobacco material The tobacco material is a material derived from tobacco, and specific examples thereof include chopped dried tobacco leaves and crushed leaf tobacco. A crushed leaf tobacco product is a particle obtained by crushing a leaf tobacco. The pulverized leaf tobacco product can have, for example, a particle size D90 of 20 to 1000 μm, preferably 50 to 500 μm. The pulverization can be performed using a known pulverizer, and may be either dry pulverization or wet pulverization. Therefore, the crushed leaf tobacco is also referred to as leaf tobacco particles. In the present invention, the average particle size is determined by a laser diffraction / scattering method, and specifically, it is measured using a laser diffraction type particle size distribution measuring device (for example, LA-950 manufactured by HORIBA, Ltd.). Further, the type of tobacco is not limited, and yellow varieties, Burley varieties, Orient varieties, native varieties, and other Nicotiana-Tabacam varieties, Nicotiana rustica varieties, and the like can be used. The amount of the tobacco material in the tobacco sheet is not particularly limited, but is preferably 50 to 95% by weight, more preferably 60 to 90% by weight in terms of dry weight.
（３）エアロゾル生成基材
　たばこシートはエアロゾル生成基材を含んでいてもよい。エアロゾル生成基材とは、加熱により気化し冷却されてエアロゾルを生成するあるいは霧化によってエアロゾルを生成する材料である。エアロゾル生成基材としては公知のものを用いることができるが、その例としてはグリセリン、プロピレングリコール（ＰＧ）等の多価アルコール、トリエチルシトレート（ＴＥＣ）、トリアセチン等の沸点が１００℃を超えるものが挙げられる。たばこシートにおけるエアロゾル生成基材の量は、乾燥重量（混入している水を除いた重量、以下同様）で、好ましくは１～４０重量％、より好ましくは１０～２０重量％である。エアロゾル生成基材の量が上限値を超えるとたばこシートの製造が困難となるおそれがあり、下限値未満であると煙感量が低下するおそれがある。 (3) Aerosol-producing base material The tobacco sheet may contain an aerosol-forming base material. The aerosol-forming substrate is a material that is vaporized and cooled by heating to form an aerosol, or is atomized to produce an aerosol. Known aerosol-forming substrates can be used, and examples thereof include polyhydric alcohols such as glycerin and propylene glycol (PG), triethylcitrate (TEC), triacetin and the like having a boiling point of more than 100 ° C. Can be mentioned. The amount of the aerosol-forming base material in the tobacco sheet is a dry weight (weight excluding mixed water, the same applies hereinafter), preferably 1 to 40% by weight, and more preferably 10 to 20% by weight. If the amount of the aerosol-forming base material exceeds the upper limit value, it may be difficult to manufacture the tobacco sheet, and if it is less than the lower limit value, the amount of smoke sensation may decrease.
（４）乳化剤
　たばこシートは乳化剤を含んでいてもよい。乳化剤は親油性であるエアロゾル生成基材と親水性であるたばこ材料の親和性を高める。よって、特に親油性のエアロゾル生成基材を用いる場合に乳化剤の添加は効果的である。乳化剤としては公知のものを用いることができるが、その例としては８～１８のＨＬＢ値を有する乳化剤が挙げられる。乳化剤の量は、特に限定されないがたばこシート１００重量部に対して、乾燥重量で、好ましくは０．１～３重量部、より好ましくは１～２重量部である。 (4) Emulsifier The tobacco sheet may contain an emulsifier. The emulsifier enhances the affinity between the lipophilic aerosol-forming substrate and the hydrophilic tobacco material. Therefore, the addition of an emulsifier is particularly effective when a lipophilic aerosol-forming substrate is used. Known emulsifiers can be used, and examples thereof include emulsifiers having an HLB value of 8 to 18. The amount of the emulsifier is not particularly limited, but is preferably 0.1 to 3 parts by weight, more preferably 1 to 2 parts by weight, based on 100 parts by weight of the tobacco sheet.
（５）たばこ以外のセルロース
　たばこシートは、たばこ以外のセルロースを含んでいてもよい。たばこ以外のセルロースとは例えばセルロース繊維やセルロースパウダーが挙げられ、バインダーとしてのセルロース誘導体は含まない。セルロース繊維を含むたばこシートは高い強度を有する。当該繊維としては、例えばパルプ繊維が挙げられる。パルプ繊維とは、木材等の植物から取り出されたセルロース繊維の集合体であり、通常は紙の原料として用いられる。パルプ繊維としては、古紙パルプ、化学パルプ、機械パルプ等が挙げられる。 (5) Cellulose other than tobacco The tobacco sheet may contain cellulose other than tobacco. Examples of cellulose other than tobacco include cellulose fiber and cellulose powder, and do not contain a cellulose derivative as a binder. Tobacco sheets containing cellulose fibers have high strength. Examples of the fiber include pulp fiber. Pulp fiber is an aggregate of cellulose fibers extracted from plants such as wood, and is usually used as a raw material for paper. Examples of the pulp fiber include used paper pulp, chemical pulp, mechanical pulp and the like.
　たばこシートにおける前記繊維の量は、機械的強度等の観点から、乾燥重量で、好ましくは１～２０重量％、より好ましくは５～１０重量％である。ただし、たばこシートが当該繊維を含まないと雑味を低減できるので、一態様においてたばこシートは当該繊維を含まない。この場合はバインダーの量を調整して強度を高めることができる。 The amount of the fiber in the tobacco sheet is preferably 1 to 20% by weight, more preferably 5 to 10% by weight in terms of dry weight from the viewpoint of mechanical strength and the like. However, since the miscellaneous taste can be reduced if the tobacco sheet does not contain the fiber, the tobacco sheet does not contain the fiber in one embodiment. In this case, the amount of the binder can be adjusted to increase the strength.
（６）香料
　たばこシートは香料を含んでいてもよい。香料とは、香りや風味を提供する物質である。香料は天然香料であってもよいし合成香料であってもよい。香料として１種類の香料を用いてもよいし複数種類の香料の混合物を用いてもよい。香料として、喫煙物品において一般に使用される任意の香料を使用することができるが、その具体例は後述する。香料は、喫煙物品が好ましい香りや風味を提供することができるような量で、喫煙物品用シートに含むことができ、例えば、その量はたばこシート中、好ましくは１～３０重量％、より好ましくは２～２０重量％である。 (6) Fragrance The tobacco sheet may contain a fragrance. A fragrance is a substance that provides a scent and flavor. The fragrance may be a natural fragrance or a synthetic fragrance. One kind of fragrance may be used as a fragrance, or a mixture of a plurality of kinds of fragrances may be used. As the fragrance, any fragrance generally used in smoking articles can be used, and specific examples thereof will be described later. The fragrance can be contained in the smoking article sheet in an amount such that the smoking article can provide a preferable scent and flavor, for example, the amount thereof is preferably 1 to 30% by weight in the tobacco sheet, more preferably. Is 2 to 20% by weight.
　当該香料の種類は、特に限定されず、良好な香料感の付与の観点から、アセトアニソール、アセトフェノン、アセチルピラジン、２－アセチルチアゾール、アルファルファエキストラクト、アミルアルコール、酪酸アミル、トランス－アネトール、スターアニス油、リンゴ果汁、ペルーバルサム油、ミツロウアブソリュート、ベンズアルデヒド、ベンゾインレジノイド、ベンジルアルコール、安息香酸ベンジル、フェニル酢酸ベンジル、プロピオン酸ベンジル、２，３－ブタンジオン、２－ブタノール、酪酸ブチル、酪酸、カラメル、カルダモン油、キャロブアブソリュート、β－カロテン、ニンジンジュース、Ｌ－カルボン、β－カリオフィレン、カシア樹皮油、シダーウッド油、セロリーシード油、カモミール油、シンナムアルデヒド、ケイ皮酸、シンナミルアルコール、ケイ皮酸シンナミル、シトロネラ油、ＤＬ－シトロネロール、クラリセージエキストラクト、ココア、コーヒー、コニャック油、コリアンダー油、クミンアルデヒド、ダバナ油、δ－デカラクトン、γ－デカラクトン、デカン酸、ディルハーブ油、３，４－ジメチル－１，２－シクロペンタンジオン、４，５－ジメチル－３－ヒドロキシ－２，５－ジヒドロフラン－２－オン、３，７－ジメチル－６－オクテン酸、２，３－ジメチルピラジン、２，５－ジメチルピラジン、２，６－ジメチルピラジン、２－メチル酪酸エチル、酢酸エチル、酪酸エチル、ヘキサン酸エチル、イソ吉草酸エチル、乳酸エチル、ラウリン酸エチル、レブリン酸エチル、エチルマルトール、オクタン酸エチル、オレイン酸エチル、パルミチン酸エチル、フェニル酢酸エチル、プロピオン酸エチル、ステアリン酸エチル、吉草酸エチル、エチルバニリン、エチルバニリングルコシド、２－エチル－３，（５または６）－ジメチルピラジン、５－エチル－３－ヒドロキシ－４－メチル－２（５Ｈ）－フラノン、２－エチル－３－メチルピラジン、ユーカリプトール、フェネグリークアブソリュート、ジェネアブソリュート、リンドウ根インフュージョン、ゲラニオール、酢酸ゲラニル、ブドウ果汁、グアヤコール、グァバエキストラクト、γ－ヘプタラクトン、γ－ヘキサラクトン、ヘキサン酸、シス－３－ヘキセン－１－オール、酢酸ヘキシル、ヘキシルアルコール、フェニル酢酸ヘキシル、ハチミツ、４－ヒドロキシ－３－ペンテン酸ラクトン、４－ヒドロキシ－４－（３－ヒドロキシ－１－ブテニル）－３，５，５－トリメチル－２－シクロヘキセン－１－オン、４－（パラ－ヒドロキシフェニル）－２－ブタノン、４－ヒドロキシウンデカン酸ナトリウム、インモルテルアブソリュート、β－イオノン、酢酸イソアミル、酪酸イソアミル、フェニル酢酸イソアミル、酢酸イソブチル、フェニル酢酸イソブチル、ジャスミンアブソリュート、コーラナッツティンクチャー、ラブダナム油、レモンテルペンレス油、カンゾウエキストラクト、リナロール、酢酸リナリル、ロベージ根油、マルトール、メープルシロップ、メンソール、メントン、酢酸Ｌ－メンチル、パラメトキシベンズアルデヒド、メチル－２－ピロリルケトン、アントラニル酸メチル、フェニル酢酸メチル、サリチル酸メチル、４’－メチルアセトフェノン、メチルシクロペンテノロン、３－メチル吉草酸、ミモザアブソリュート、トウミツ、ミリスチン酸、ネロール、ネロリドール、γ－ノナラクトン、ナツメグ油、δ－オクタラクトン、オクタナール、オクタン酸、オレンジフラワー油、オレンジ油、オリス根油、パルミチン酸、ω－ペンタデカラクトン、ペパーミント油、プチグレインパラグアイ油、フェネチルアルコール、フェニル酢酸フェネチル、フェニル酢酸、ピペロナール、プラムエキストラクト、プロペニルグアエトール、酢酸プロピル、３－プロピリデンフタリド、プルーン果汁、ピルビン酸、レーズンエキストラクト、ローズ油、ラム酒、セージ油、サンダルウッド油、スペアミント油、スチラックスアブソリュート、マリーゴールド油、ティーディスティレート、α－テルピネオール、酢酸テルピニル、５，６，７，８－テトラヒドロキノキサリン、１，５，５，９－テトラメチル－１３－オキサシクロ（８．３．０．０（４．９））トリデカン、２，３，５，６－テトラメチルピラジン、タイム油、トマトエキストラクト、２－トリデカノン、クエン酸トリエチル、４－（２，６，６－トリメチル－１－シクロヘキセニル）２－ブテン－４－オン、２，６，６－トリメチル－２－シクロヘキセン－１，４－ジオン、４－（２，６，６－トリメチル－１，３－シクロヘキサジエニル）２－ブテン－４－オン、２，３，５－トリメチルピラジン、γ－ウンデカラクトン、γ－バレロラクトン、バニラエキストラクト、バニリン、ベラトルアルデヒド、バイオレットリーフアブソリュート、Ｎ－エチル－ｐ－メンタン－３－カルボアミド（ＷＳ－３）、エチル－２－（ｐ－メンタン－３－カルボキサミド）アセテート（ＷＳ－５）、糖（スクロース、フルクトース等）、ココア粉、キャロブ粉、コリアンダー粉、リコリス粉、オレンジピール粉、ローズピップ粉、カモミールフラワー（flower)粉、レモンバーベナ粉、ペパーミント粉、リーフ粉、スペアミント粉、紅茶粉、天然植物性香料（例えば、ジャスミン油、レモン油、ベチバー油、ロベージ油）、エステル類（例えば、酢酸メンチル、プロピオン酸イソアミル、等）、アルコール類（例えば、フェニルエチルアルコール、シス－６－ノネン－１－オール、等）、が挙げられる。これらの香料は１種を単独で、または２種以上を併用してもよい。 The type of the fragrance is not particularly limited, and from the viewpoint of imparting a good fragrance feeling, acetoanisol, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-annetol, star anis Oil, apple juice, peruvian balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butandione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamon Oil, Carobu Absolute, β-Carotene, Carrot Juice, L-Carbon, β-Cariophyllene, Cassia Bark Oil, Cedarwood Oil, Cellory Seed Oil, Chamomile Oil, Cinnamaldehyde, Cayhide Acid, Cinnamyl Alcohol, Cinnamyl Acid Cinnamyl, Citronella oil, DL-citronolol, clarisage extract, cocoa, coffee, cognac oil, coriander oil, cuminaldehyde, davana oil, δ-decalactone, γ-decalactone, decanoic acid, dillherb 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-dimethyl Pyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanate, oleic acid Ethyl, 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) -Franone, 2-Ethyl-3-methylpyrazine, Eucalyptor, Fenegrik Absolute, Gene Absolute, Lindou Root Infusion, Geraniol, Geranyl Acetate, Grape Juice, Guayacol, Guava Extract , Γ-Heptalactone, γ-Hexalactone, Hexanoic acid, cis-3-hexene-1-ol, hexyl acetate, hexyl alcohol, phenylacetate hexyl, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy- 4- ( 3-Hydroxy-1-butenyl) -3,5,5-trimethyl-2-cyclohexene-1-one, 4- (para-hydroxyphenyl) -2-butanone, sodium 4-hydroxyundecanoate, immortel absolute, β-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, rabdanum oil, lemon terpenless oil, kanzo extract, linalol, linaryl acetate, lobage root oil, Martor, Maple Syrup, Mensole, Menton, L-Mentyl Acetate, Paramethoxybenzaldehyde, Methyl-2-pyrrylketone, Methyl Anthranilate, Methyl Phenylacetate, Methyl Salicylate, 4'-Methylacetophenone, Methylcyclopentenolone, 3-Methylkichi Herb acid, mimosa absolute, toumitsu, myristic acid, nerol, nerolidol, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanic acid, orange flower oil, orange oil, oris root oil, palmitic acid, ω-pentadeca Lactone, 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-tridecanone, Triethyl citrate, 4- (2,6,6-trimethyl-1-cyclohexenyl) 2-butene-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, vera Toraldehyde, Violet Leaf Absolute, N-Ethyl-p -Mentan-3-carbamide (WS-3), ethyl-2- (p-mentan-3-carboxamide) acetate (WS-5), sugar (sucrose, fructose, etc.), cocoa powder, carob powder, coriander powder, licorice Powder, orange peel powder, rose pip powder, chamomile flower powder, lemon verbena powder, peppermint powder, leaf powder, spearmint powder, black tea powder, natural vegetable fragrances (eg jasmine oil, lemon oil, vetiver oil, lobage) Oils), esters (eg, menthyl acetate, isoamyl propionate, etc.), alcohols (eg, phenylethyl alcohol, cis-6-nonen-1-ol, etc.). These fragrances may be used alone or in combination of two or more.
（７）たばこシートの特性および形態
　１）厚さ
　たばこシートの厚さは限定されないが、一態様において好ましくは２０～２０００μｍ、より好ましくは１００～１５００μｍ、さらに好ましくは１００～１０００μｍである。 (7) Characteristics and Form of Tobacco Sheet 1) Thickness The thickness of the tobacco sheet is not limited, but in one embodiment, it is preferably 20 to 2000 μm, more preferably 100 to 1500 μm, and further preferably 100 to 1000 μm.
　２）強度
　たばこシートは、好ましくは１．７Ｎ／ｍｍ以上、より好ましくは２Ｎ／ｍｍ以上、さらに好ましくは３Ｎ／ｍｍ以上の引張応力を有する。 2) Strength The tobacco sheet has a tensile stress of preferably 1.7 N / mm or more, more preferably 2 N / mm or more, still more preferably 3 N / mm or more.
　３）算術平均表面粗さＳａ
　たばこシートは、好ましくは０．０３ｍｍ以下の算術平均表面粗さＳａを有する。Ｓａは表面粗度の指標であり、本発明のたばこシートが前記範囲のＳａを有すると、表面からの刻こぼれが低減する。この観点から、Ｓａの上限値は、より好ましくは０．０２ｍｍ以下である。Ｓａは公知の方法で測定されるが、顕微鏡（例えばＫＥＹＥＮＣＥ社製のＶＫ－Ｘ１００）を用いて、以下の手順で測定されることが好ましい。
１）シートの一番低い部分の焦点位置を設定
２）シートの一番高い部分の焦点位置を設定
３）前記１）と２）で得た区間を分割し、少しずつ焦点をずらしながら撮像
４）各部分の焦点位置と、一番低い部分の焦点位置の差から高さを測定
５）各位置の高さデータから粗さを算出（必要に応じ測定機ソフトで自動計算）し、算術表面粗さＳａを算出 3) Arithmetic mean surface roughness Sa
The tobacco sheet preferably has an arithmetic mean surface roughness Sa of 0.03 mm or less. Sa is an index of surface roughness, and when the tobacco sheet of the present invention has Sa in the above range, spillage from the surface is reduced. From this viewpoint, the upper limit of Sa is more preferably 0.02 mm or less. Sa is measured by a known method, but it is preferably measured by the following procedure using a microscope (for example, VK-X100 manufactured by KEYENCE).
1) Set the focal position of the lowest part of the sheet 2) Set the focal position of the highest part of the sheet 3) Divide the sections obtained in 1) and 2) above, and take an image while shifting the focus little by little 4 ) Measure the height from the difference between the focal position of each part and the focal position of the lowest part 5) Calculate the roughness from the height data of each position (automatically calculated by the measuring machine software if necessary), and the arithmetic surface Calculate roughness Sa
（８）たばこセグメント
　たばこシートから、喫煙物品に用いるたばこセグメントを製造できる。たばこセグメントは、一態様において筒状のラッパーを備え、当該ラッパー内に渦巻き状に充填されたたばこシートを備える（図１（Ａ）参照）。図中、２０Ａはたばこセグメント、１はたばこシート、２２はラッパーであり、通常は紙である。当該たばこセグメントは好ましくはロッド状であり、その長さは１５～８０ｍｍ、直径は５～１０ｍｍ程度とすることができる。さらに図１（Ａ）に記載のたばこセグメント２０Ａを切断して、アスペクト比（長さ／直径）が０．５～１．２程度とすることもできる（図１（Ｂ）参照）。 (8) Tobacco segment A tobacco segment used for smoking articles can be produced from a tobacco sheet. The tobacco segment comprises, in one aspect, a tubular wrapper and a tobacco sheet filled in the wrapper in a spiral shape (see FIG. 1A). In the figure, 20A is a tobacco segment, 1 is a tobacco sheet, 22 is a wrapper, and is usually paper. The tobacco segment is preferably rod-shaped, having a length of 15 to 80 mm and a diameter of about 5 to 10 mm. Further, the tobacco segment 20A shown in FIG. 1 (A) can be cut to have an aspect ratio (length / diameter) of about 0.5 to 1.2 (see FIG. 1 (B)).
　たばこセグメント２０Ａは、別態様において筒状のラッパー２２を備え、当該ラッパー内に折畳んで充填されたたばこシート１を備える。折り畳みによって生じた稜線はセグメントの長手方向に略平行である（図１（Ｃ）参照）。当該たばこセグメント２０Ａは好ましくはロッド状であり、その長さは１５～８０ｍｍ、直径は５～１０ｍｍ程度とすることができる。この態様においては、たばこシート１に予めプリーツ加工またはクリンプ加工等の表面しわ加工が施されていることが好ましい。 The tobacco segment 20A includes a tubular wrapper 22 in another embodiment, and includes a tobacco sheet 1 folded and filled in the wrapper. The ridges created by folding are substantially parallel to the longitudinal direction of the segment (see FIG. 1 (C)). The tobacco segment 20A is preferably rod-shaped, has a length of 15 to 80 mm and a diameter of about 5 to 10 mm. In this embodiment, it is preferable that the tobacco sheet 1 is previously subjected to surface wrinkling processing such as pleating or crimping.
　たばこセグメント２０Ａは、別態様において筒状のラッパー２２を備え、当該ラッパー内に充填されたたばこシートの裁断片１ｃを備える（図１（Ｄ）参照）。当該たばこセグメント２０Ａは好ましくはロッド状であり、その長さは１５～８０ｍｍ、直径は５～１０ｍｍ程度とすることができる。裁断片のサイズは限定されないが、例えば最長辺の長さを２～２０ｍｍ程度、幅を０．５～１．５ｍｍ程度とすることができる。 The tobacco segment 20A includes a tubular wrapper 22 in another embodiment, and includes a cut piece 1c of a tobacco sheet filled in the wrapper (see FIG. 1 (D)). The tobacco segment 20A is preferably rod-shaped, has a length of 15 to 80 mm and a diameter of about 5 to 10 mm. The size of the cut piece is not limited, but for example, the length of the longest side can be about 2 to 20 mm and the width can be about 0.5 to 1.5 mm.
　たばこセグメント２０Ａは、別態様において筒状のラッパー２２を備え、当該ラッパー内に充填されたストランドタイプ刻を備える（図１（Ｅ）参照）。ストランドタイプ刻は、その長手方向がラッパー２２の長手方向と略平行となるように充填される。ストランドタイプ刻の幅は０．５～１．５ｍｍ程度とすることができる。 The tobacco segment 20A is provided with a tubular wrapper 22 in another embodiment, and is provided with a strand type engraving filled in the wrapper (see FIG. 1 (E)). The strand type engraving is filled so that its longitudinal direction is substantially parallel to the longitudinal direction of the wrapper 22. The width of the strand type engraving can be about 0.5 to 1.5 mm.
　たばこセグメント２０Ａは、別態様において筒状のラッパー２２を備え、当該ラッパー内にランダムに充填された、たばこ刻充填物を備える。たばこ刻は裁刻物でありストランドタイプ刻とは異なる。 The tobacco segment 20A comprises a tubular wrapper 22 in another embodiment, and includes a tobacco engraved filling randomly filled in the wrapper. Tobacco carving is a cut piece and is different from strand type carving.
２．製造方法
　たばこシートは任意の方法で製造されうるが、好ましくは以下の工程を備える方法で製造される。
　少なくとも、たばこ材料と、前記セルロース誘導体と、媒体を含む混合物を調製する工程１、
　前記混合物を基材上に展開してウェットシートを調製する工程２、ならびに
　前記ウェットシートを乾燥する工程３。 2. 2. Manufacturing Method The tobacco sheet can be manufactured by any method, but is preferably manufactured by a method including the following steps.
Step 1, preparing a mixture containing at least a tobacco material, the cellulose derivative, and a medium.
Step 2 of developing the mixture on a substrate to prepare a wet sheet, and step 3 of drying the wet sheet.
（１）工程１
　本工程は、たばこ材料と、バインダーであるセルロース誘導体と、媒体とを混合する。必要に応じて、エアロゾル生成基材、乳化剤、または香料を添加することもできる。各成分の配合量は、前述の量を達成できるように調整される。媒体は、好ましくは例えば水や、エタノール等の沸点が１００℃未満である水溶性有機溶媒を主成分とし、より好ましくは水またはエタノールである。混合の方法は限定されず、ミキサーやニーダー等の公知の機器を用いることができる。混合によって得られる混合物の固形分濃度は限定されず、工程２に適するように適宜調製される。例えば、当該固形分濃度の上限は、好ましくは９８重量％以下、９０重量％以下、または８０重量％以下であり、その下限は、好ましくは１０重量％以上、２０重量％以上、３０重量％以上、４０重量％以上、または５０重量％以上である。 (1) Step 1
In this step, the tobacco material, the cellulose derivative as a binder, and the medium are mixed. If desired, aerosol-forming substrates, emulsifiers, or fragrances can be added. The blending amount of each component is adjusted so that the above-mentioned amount can be achieved. The medium is preferably water or a water-soluble organic solvent having a boiling point of less than 100 ° C. such as ethanol as a main component, and more preferably water or ethanol. The mixing method is not limited, and known equipment such as a mixer and a kneader can be used. The solid content concentration of the mixture obtained by mixing is not limited, and is appropriately prepared to be suitable for step 2. For example, the upper limit of the solid content concentration is preferably 98% by weight or less, 90% by weight or less, or 80% by weight or less, and the lower limit thereof is preferably 10% by weight or more, 20% by weight or more, and 30% by weight or more. , 40% by weight or more, or 50% by weight or more.
（２）工程２
　本工程では、前記混合物を基材上に展開してウェットシートを調製する。基材としては限定されず、ガラス板等の無機材料基材、アルミ板等の金属基材、ＰＥＴフィルム、フルオロポリマーフィルムなどの有機材料基材、不織布等の繊維材料基材等が挙げられる。混合物を基材上に展開する方法は限定されないが、後述するようにローラを用いて圧展する圧延法、ダイから押出す押出法、キャストするキャスト法が挙げられる。 (2) Step 2
In this step, the mixture is developed on a substrate to prepare a wet sheet. The base material is not limited, and examples thereof include an inorganic material base material such as a glass plate, a metal base material such as an aluminum plate, an organic material base material such as a PET film and a fluoropolymer film, and a fiber material base material such as a non-woven fabric. The method for developing the mixture on the substrate is not limited, and examples thereof include a rolling method in which the mixture is expanded using a roller, an extrusion method in which the mixture is extruded from a die, and a casting method in which the mixture is cast.
（３）乾燥工程
　本工程では前記ウェットシートを乾燥する。乾燥は公知の方法に従って実施できる。例えば、ウェットシートを室温にて風乾する、あるいは加熱して乾燥することができる。加熱温度も限定されず、例えば６０～１５０℃とすることができる。乾燥されたシートを基材から単離して、たばこシートを得る。 (3) Drying step In this step, the wet sheet is dried. Drying can be carried out according to a known method. For example, the wet sheet can be air-dried at room temperature or heated to dry. The heating temperature is also not limited and can be, for example, 60 to 150 ° C. The dried sheet is isolated from the substrate to obtain a tobacco sheet.
　以下に、本発明のたばこシートの製造方法について、好ましい態様を説明する。
［圧延法］
１）工程１
１－１）粉砕
　原料（例えば、単葉）を粗砕する。次いで、粉砕機（例えばホソカワミクロン製、ＡＣＭ－５）を用いて、微粉砕を行う。微粉砕後の粒径（Ｄ９０）は好ましくは５０～８００μｍである。粒度は、マスターサイザー（ｍａｌｖｅｒｎ社製）等のレーザ回折型粒度計を用いて測定される。 Hereinafter, preferred embodiments of the method for producing a tobacco sheet of the present invention will be described.
[Rolling method]
1) Process 1
1-1) Crushing The raw material (for example, single leaf) is coarsely crushed. Then, fine pulverization is performed using a pulverizer (for example, manufactured by Hosokawa Micron, ACM-5). The particle size (D90) after fine grinding is preferably 50 to 800 μm. The particle size is measured using a laser diffraction type particle size meter such as a master sizer (manufactured by Malvern).
１－２）湿粉の調製
　粉砕されたたばこ原料（例えば、たばこ粒子）に、バインダー、必要に応じて香料や脂質等の添加剤を加えて混合する。この混合はドライブレンドであることが好ましいので、混合機としてミキサーを用いることが好ましい。次いで、ドライブレンド物に、水等の媒体、必要に応じてグリセリン等のエアロゾル生成基材を添加し、ミキサーで混合し、湿粉（湿潤状態の粉）を調製する。当該湿粉中の媒体の量は、２０～８０重量％、好ましくは２０～４０重量％とすることができるが、工程２で圧展を行うので２０～５０重量％としてもよい。湿粉の固形分濃度は５０～９０重量％であることが好ましい。 1-2) Preparation of wet powder Add a binder and, if necessary, additives such as fragrance and lipid to the crushed tobacco raw material (for example, tobacco particles) and mix them. Since this mixing is preferably a dry blend, it is preferable to use a mixer as a mixer. Next, a medium such as water and, if necessary, an aerosol-forming base material such as glycerin are added to the dry blend and mixed with a mixer to prepare a wet powder (wet powder). The amount of the medium in the wet powder can be 20 to 80% by weight, preferably 20 to 40% by weight, but it may be 20 to 50% by weight because the pressure expansion is performed in the step 2. The solid content concentration of the wet powder is preferably 50 to 90% by weight.
１－３）混錬
　前記湿粉を、一軸または多軸の混練機、例えばニーダー（ダルトン社製ＤＧ－１等）を用いて混練する。混練は、全体に媒体がいきわたるまで実施することが好ましい、例えば、目視にて混合物の色が均一になるまで混練りすることが好ましい。 1-3) Kneading The wet powder is kneaded using a uniaxial or multiaxial kneader, for example, a kneader (DG-1 manufactured by Dalton Co., Ltd.). The kneading is preferably carried out until the medium is completely spread, for example, it is preferable to knead until the color of the mixture becomes uniform visually.
２）工程２（圧展）
　混錬後の混合物を、２枚の基材フィルムに挟み込みながら、カレンダー装置（例えば、由利ロール機械社製）を用いて、所定の厚さ（１００μｍ超）になるまで１対のローラ間に通し、圧展して２枚の基材フィルム間にウェットシートが存在するラミネートを得る。ローラによる圧展は複数回実施することができる。基材フィルムは、フッ素系ポリマーフィルム等の非粘着性フィルムが好ましく、具体的にはテフロン（登録商標）フィルムを挙げることができる。 2) Step 2 (pressure exhibition)
The mixture after kneading is sandwiched between two base films and passed between a pair of rollers using a calendar device (for example, manufactured by Yuri Roll Machinery Co., Ltd.) until the specified thickness (more than 100 μm) is reached. , To obtain a laminate in which a wet sheet is present between two substrate films by compression. The pressure expansion by the rollers can be performed multiple times. The base film is preferably a non-adhesive film such as a fluoropolymer film, and specific examples thereof include a Teflon (registered trademark) film.
３）工程３
　ラミネートにおける、一方の基材フィルムを剥離する。当該ラミネートを、通風乾燥機を用いて乾燥する。乾燥温度は好ましくは５０～１００℃であり、乾燥時間は１～２分とすることができる。次いで、残りの基材フィルムを剥離し、さらに前記条件で乾燥してたばこシートを得る。このように乾燥を行うことで、たばこシートが他の基材に接着することを回避できる。 3) Process 3
Peel off one of the substrate films in the laminate. The laminate is dried using a ventilation dryer. The drying temperature is preferably 50 to 100 ° C., and the drying time can be 1 to 2 minutes. Then, the remaining base film is peeled off and further dried under the above conditions to obtain a tobacco sheet. By performing the drying in this way, it is possible to prevent the tobacco sheet from adhering to other base materials.
　本方法で得たたばこシートを「ラミネートシート」ともいう。ラミネートシートは表面が滑らかであり、他の部材と接触した場合に刻こぼれの発生を抑制できるので好ましい。また、本方法は３００μｍ以下のシートの製造に適している。 The tobacco sheet obtained by this method is also called a "laminate sheet". The laminated sheet has a smooth surface and is preferable because it can suppress the occurrence of spillage when it comes into contact with other members. Further, this method is suitable for producing a sheet having a thickness of 300 μm or less.
［押出法］
１）工程１
　本方法における工程１は、圧延法で説明したとおりである。湿粉（湿潤状態の粉）を調製する。工程２で押出を行う場合、当該湿粉中の媒体の量は２０～８０重量％の範囲で選択できるが、好ましくは２０～４０重量％である。
２）工程２
　本工程では湿粉を所定のギャップを設けたダイから押出して、基材上にウェットシート形成する。押出しには公知の押出機を使用できる。
３）工程３
　本工程ではウェットシートを乾燥してたばこシートを得る。乾燥条件は圧延法で説明したとおりである。本方法で得たたばこシートを「押出シート」ともいう。押出シートは表面が滑らかであり、他の部材と接触した場合に刻こぼれの発生を抑制できるので好ましい。本方法は２００μｍ以上のシートの製造に適している。 [Extrusion method]
1) Process 1
Step 1 in this method is as described in the rolling method. Prepare wet powder (wet powder). When extrusion is performed in step 2, the amount of the medium in the wet powder can be selected in the range of 20 to 80% by weight, but is preferably 20 to 40% by weight.
2) Step 2
In this step, wet powder is extruded from a die provided with a predetermined gap to form a wet sheet on a substrate. A known extruder can be used for extrusion.
3) Process 3
In this step, the wet sheet is dried to obtain a tobacco sheet. The drying conditions are as described in the rolling method. The tobacco sheet obtained by this method is also referred to as an "extruded sheet". The extruded sheet is preferable because it has a smooth surface and can suppress the occurrence of spillage when it comes into contact with other members. This method is suitable for producing a sheet having a thickness of 200 μm or more.
　また、このように圧力をかけて成形されたシートを「圧力成形シート」といい、「圧力成形シート」は「ラミネートシート」と「押出シート」を含む。ラミネートシートとは、混合物を１回以上ローラで目標厚さまで圧展した後に、目標水分量まで乾燥して得たシートである。押出シートとは、混合物をＴダイ等から目標厚さで押出した後に、目標水分量まで乾燥して得たシートである。圧力成形シートにおいて圧展と押出は組み合わせてもよい。例えば、混合物を押出した後にさらに圧展してシートとしてもよい。 Further, the sheet formed by applying pressure in this way is called a "pressure molded sheet", and the "pressure molded sheet" includes a "laminated sheet" and an "extruded sheet". The laminated sheet is a sheet obtained by compressing the mixture with a roller at least once to a target thickness and then drying it to a target moisture content. The extruded sheet is a sheet obtained by extruding a mixture from a T-die or the like to a target thickness and then drying it to a target water content. Compression and extrusion may be combined in a pressure molded sheet. For example, the mixture may be extruded and then further compressed to form a sheet.
［キャスト法］
１）工程１
　本方法における工程１は任意の方法で実施できる。例えば、所望の粒度を有するたばこ原料と、セルロース誘導体と、媒体と、必要に応じて添加物をミキサー等で混合することで混合物を調製できる。本工程で得られる混合物の固形分濃度は、好ましくは３～１５重量％程度であるので、混合物はスラリーとも称される。 [Cast method]
1) Process 1
Step 1 in this method can be carried out by any method. For example, a mixture can be prepared by mixing a tobacco raw material having a desired particle size, a cellulose derivative, a medium, and if necessary, an additive with a mixer or the like. Since the solid content concentration of the mixture obtained in this step is preferably about 3 to 15% by weight, the mixture is also referred to as a slurry.
２）工程２
　本工程では基材上にスラリーをキャストし、ウェットシートを形成する。キャストは公知のとおりに実施できる。 2) Step 2
In this step, the slurry is cast on the substrate to form a wet sheet. Casting can be performed as known.
３）工程３
　本工程ではウェットシートを乾燥してたばこシートを得る。乾燥条件は圧延法で説明したとおりである。本方法で得たたばこシートを「キャストシート」ともいう。 3) Process 3
In this step, the wet sheet is dried to obtain a tobacco sheet. The drying conditions are as described in the rolling method. The tobacco sheet obtained by this method is also called a "cast sheet".
３．喫煙物品 3. 3. Smoking goods
　喫煙物品としては、ユーザが吸引により香味を味わう香味吸引物品や、ユーザが鼻腔や口腔に直接製品を含んで香味を味わう無煙たばこ（無煙喫煙物品）が挙げられる。香味吸引物品は、従来のシガレットを代表とする燃焼型喫煙物品と非燃焼型喫煙物品とに大別できる。本発明のたばこシートは、香味吸引物品に好適である。 Examples of smoking articles include flavor-sucking articles in which the user tastes the flavor by suction, and smokeless tobacco (smokeless smoking articles) in which the user tastes the flavor by directly including the product in the nasal cavity and oral cavity. The flavor suction article can be roughly classified into a combustion type smoking article typified by a conventional cigarette and a non-combustion type smoking article. The tobacco sheet of the present invention is suitable for a flavor suction article.
　燃焼型香味吸引物品としては、例えば、シガレット、パイプ、キセル、葉巻、またはシガリロなどが挙げられる。 Examples of the combustion-type flavor suction article include cigarettes, pipes, pipes, cigars, cigarillos, and the like.
　非燃焼加熱型香味吸引物品は、当該物品と別体型の加熱装置により加熱されてもよいし、当該物品と一体型の加熱装置により加熱されてもよい。前者の香味吸引物品（別体型）において、非燃焼加熱型香味吸引物品と加熱装置とをまとめて、「非燃焼加熱型喫煙システム」とも称する。以下に非燃焼加熱型喫煙システムの一例を、図２および図３を参照して説明する。 The non-combustion heating type flavor suction article may be heated by a heating device separate from the article, or may be heated by a heating device integrated with the article. In the former flavor suction article (separate type), the non-combustion heating type flavor suction article and the heating device are collectively referred to as a "non-combustion heating type smoking system". An example of a non-combustion heating type smoking system will be described below with reference to FIGS. 2 and 3.
　図２は、非燃焼加熱型喫煙システムの一例を示す断面模式図であり、非燃焼加熱型香味吸引物品２０のたばこセグメント２０Ａ内に、ヒータ１２を挿入する前の状態を示す。使用時には、たばこセグメント２０Ａ内に、ヒータ１２が挿入される。図３は、非燃焼加熱型香味吸引物品２０の断面図である。 FIG. 2 is a schematic cross-sectional view showing an example of a non-combustion heating type smoking system, and shows a state before inserting the heater 12 into the tobacco segment 20A of the non-combustion heating type flavor suction article 20. At the time of use, the heater 12 is inserted into the tobacco segment 20A. FIG. 3 is a cross-sectional view of the non-combustion heating type flavor suction article 20.
　図２に示すとおり、非燃焼加熱型喫煙システムは、非燃焼加熱型香味吸引物品２０と、たばこセグメント２０Ａを内側から加熱する加熱装置１０とを備える。ただし非燃焼加熱型喫煙システムは、図２の構成に限定されない。 As shown in FIG. 2, the non-combustion heating type smoking system includes a non-combustion heating type flavor suction article 20 and a heating device 10 for heating the tobacco segment 20A from the inside. However, the non-combustion heating type smoking system is not limited to the configuration shown in FIG.
　図２に示される加熱装置１０は、ボディ１１と、ヒータ１２とを備える。図示していないが、ボディ１１は電池ユニットと制御ユニットを備えていてもよい。ヒータ１２は電気抵抗によるヒータであることができ、たばこセグメント２０Ａ内に挿入されて、たばこセグメント２０Ａを加熱する。 The heating device 10 shown in FIG. 2 includes a body 11 and a heater 12. Although not shown, the body 11 may include a battery unit and a control unit. The heater 12 can be a heater due to electrical resistance and is inserted into the tobacco segment 20A to heat the tobacco segment 20A.
　本発明のたばこシートは、図２に示すようにたばこセグメント２０Ａが内側から加熱される場合に高い効果を奏する。このような加熱方式では、たばこシートとヒータが直接接触するので、従来は刻こぼれが発生しやすかった。しかし本発明のたばこシートにおいてはこのような場合でも刻こぼれが発生しにくいので、本発明のたばこシートは内部加熱方式においてより効果を発揮する。しかしながら、非燃焼加熱型香味吸引物品２０の態様はこれに限定されず、別態様においてたばこセグメント２０Ａは外側から加熱される。 The tobacco sheet of the present invention is highly effective when the tobacco segment 20A is heated from the inside as shown in FIG. In such a heating method, the tobacco sheet and the heater come into direct contact with each other, so that spills are likely to occur in the past. However, since the tobacco sheet of the present invention is less likely to cause spillage even in such a case, the tobacco sheet of the present invention is more effective in the internal heating method. However, the aspect of the non-combustion heating type flavor suction article 20 is not limited to this, and in another aspect, the tobacco segment 20A is heated from the outside.
　加熱装置１０による加熱温度は特に限定されないが、４００℃以下であることが好ましく、５０～４００℃であることがより好ましく、１５０～３５０℃であることがさらに好ましい。加熱温度とは加熱装置１０のヒータ１２の温度を指す。 The heating temperature by the heating device 10 is not particularly limited, but is preferably 400 ° C. or lower, more preferably 50 to 400 ° C., and even more preferably 150 to 350 ° C. The heating temperature refers to the temperature of the heater 12 of the heating device 10.
　図３に示すとおり、非燃焼加熱型香味吸引物品２０（以下、単に「香味吸引物品２０」と称する）は、円柱形状を有する。香味吸引物品２０の円周の長さは、１６ｍｍ～２７ｍｍであることが好ましく、２０ｍｍ～２６ｍｍであることがより好ましく、２１ｍｍ～２５ｍｍであることがさらに好ましい。香味吸引物品２０の全長（水平方向の長さ）は特に限定されないが、４０ｍｍ～９０ｍｍであることが好ましく、５０ｍｍ～７５ｍｍであることがより好ましく、５０ｍｍ～６０ｍｍであることがさらに好ましい。 As shown in FIG. 3, the non-combustion heating type flavor suction article 20 (hereinafter, simply referred to as “flavor suction article 20”) has a cylindrical shape. The circumference of the flavor suction article 20 is preferably 16 mm to 27 mm, more preferably 20 mm to 26 mm, and even more preferably 21 mm to 25 mm. The total length (horizontal length) of the flavor suction article 20 is not particularly limited, but is preferably 40 mm to 90 mm, more preferably 50 mm to 75 mm, and even more preferably 50 mm to 60 mm.
　香味吸引物品２０は、たばこセグメント２０Ａと、吸口を構成するフィルター部２０Ｃと、これらを連結する連結部２０Ｂとから構成される。 The flavor suction article 20 is composed of a cigarette segment 20A, a filter portion 20C constituting a mouthpiece, and a connecting portion 20B connecting these.
　たばこセグメント２０Ａは、円柱状であり、その全長（軸方向の長さ）は、例えば、５～１００ｍｍであることが好ましく、１０～５０ｍｍであることがより好ましく、１０～２５ｍｍであることがさらに好ましい。たばこセグメント２０Ａの断面の形状は特に限定されないが、例えば円形、楕円形、多角形等とすることができる。 The tobacco segment 20A is columnar, and its total length (length in the axial direction) is preferably, for example, 5 to 100 mm, more preferably 10 to 50 mm, and further preferably 10 to 25 mm. preferable. The shape of the cross section of the tobacco segment 20A is not particularly limited, but may be, for example, a circle, an ellipse, a polygon, or the like.
　たばこセグメント２０Ａは、たばこシートまたはこれに由来する材料２１と、その周囲に巻かれたラッパー２２とを有する。また、ラッパー２２は、本発明のたばこシート１であってもよい。 The tobacco segment 20A has a tobacco sheet or a material 21 derived from the tobacco sheet, and a wrapper 22 wrapped around the tobacco sheet 20A. Further, the wrapper 22 may be the tobacco sheet 1 of the present invention.
　フィルター部２０Ｃは、円柱形をなしている。フィルター部２０Ｃは、酢酸セルロースアセテート繊維が充填されて構成されたロッド状の第１セグメント２５と、同じく酢酸セルロースアセテート繊維が充填されて構成されたロッド状の第２セグメント２６とを有する。第１セグメント２５は、たばこセグメント２０Ａ側に位置している。第１セグメント２５は、中空部を有していてもよい。第２セグメント２６は、吸口側に位置している。第２セグメント２６は、中実である。第１セグメント２５は、第１充填層（酢酸セルロースアセテート繊維）２５ａと、第１充填層２５ａの周囲に巻かれたインナープラグラッパー２５ｂとにより構成される。第２セグメント２６は、第２充填層（酢酸セルロースアセテート繊維）２６ａと、第２充填層２６ａの周囲に巻かれたインナープラグラッパー２６ｂとにより構成される。第１セグメント２５および第２セグメント２６は、アウタープラグラッパー２７によって連結されている。アウタープラグラッパー２７は、酢酸ビニルエマルジョン系接着剤等によって第１セグメント２５および第２セグメント２６に接着されている。 The filter unit 20C has a cylindrical shape. The filter unit 20C has a rod-shaped first segment 25 filled with cellulose acetate acetate fiber and a rod-shaped second segment 26 also filled with cellulose acetate acetate fiber. The first segment 25 is located on the tobacco segment 20A side. The first segment 25 may have a hollow portion. The second segment 26 is located on the mouthpiece side. The second segment 26 is solid. The first segment 25 is composed of a first packed layer (cellulose acetate acetate fiber) 25a and an inner plug wrapper 25b wound around the first packed layer 25a. The second segment 26 is composed of a second packed layer (cellulose acetate acetate fiber) 26a and an inner plug wrapper 26b wound around the second packed layer 26a. The first segment 25 and the second segment 26 are connected by an outer plug wrapper 27. The outer plug wrapper 27 is adhered to the first segment 25 and the second segment 26 with a vinyl acetate emulsion-based adhesive or the like.
　フィルター部２０Ｃの長さを例えば１０～３０ｍｍ、連結部２０Ｂの長さを例えば１０～３０ｍｍ、第１セグメント２５の長さを例えば５～１５ｍｍ、第２セグメント２６の長さを例えば５～１５ｍｍとすることができる。これら個々のセグメントの長さは、一例であり、製造適性、要求品質、たばこセグメント２０Ａの長さ等に応じて、適宜変更できる。 The length of the filter portion 20C is, for example, 10 to 30 mm, the length of the connecting portion 20B is, for example, 10 to 30 mm, the length of the first segment 25 is, for example, 5 to 15 mm, and the length of the second segment 26 is, for example, 5 to 15 mm. can do. The length of each of these individual segments is an example, and can be appropriately changed depending on the manufacturing aptitude, the required quality, the length of the tobacco segment 20A, and the like.
　例えば、第１セグメント２５（センターホールセグメント）は、１つまたは複数の中空部を有する第１充填層２５ａと、第１充填層２５ａを覆うインナープラグラッパー２５ｂとで構成される。第１セグメント２５は、第２セグメント２６の強度を高める機能を有する。第１セグメント２５の第１充填層２５ａは、例えば酢酸セルロース繊維が高密度で充填されている。この酢酸セルロース繊維には、トリアセチンを含む可塑剤が酢酸セルロースの質量に対して、例えば６～２０質量％添加されて硬化されている。第１セグメント２５の中空部は、例えば内径φ１．０～φ５．０ｍｍである。 For example, the first segment 25 (center hole segment) is composed of a first packed layer 25a having one or more hollow portions and an inner plug wrapper 25b covering the first packed layer 25a. The first segment 25 has a function of increasing the strength of the second segment 26. The first packed layer 25a of the first segment 25 is filled with, for example, cellulose acetate fibers at a high density. A plasticizer containing triacetin is added to the cellulose acetate fiber in an amount of, for example, 6 to 20% by mass based on the mass of cellulose acetate and cured. The hollow portion of the first segment 25 has, for example, an inner diameter of φ1.0 to φ5.0 mm.
　第１セグメント２５の第１充填層２５ａは、例えば、比較的に高い繊維充填密度で構成されてもよく、あるいは後述する第２セグメント２６の第２充填層２６ａの繊維充填密度と同等であってもよい。このため、吸引時には、空気やエアロゾルが中空部のみを流れることになり、第１充填層２５ａには空気やエアロゾルがほとんど流れない。例えば、第２セグメント２６において、エアロゾル成分の濾過による減少を少なくしたい場合には、例えば第２セグメント２６の長さを短くして、その分だけ第１セグメント２５を長くすることもできる。 The first packed layer 25a of the first segment 25 may be composed of, for example, a relatively high fiber filling density, or may be equivalent to the fiber filling density of the second packed layer 26a of the second segment 26 described later. May be good. Therefore, at the time of suction, air or aerosol flows only in the hollow portion, and almost no air or aerosol flows in the first packed bed 25a. For example, in the second segment 26, when it is desired to reduce the decrease due to the filtration of the aerosol component, for example, the length of the second segment 26 can be shortened and the first segment 25 can be lengthened by that amount.
　短縮した第２セグメント２６を第１セグメント２５で置き換えることは、エアロゾル成分のデリバリー量を増大させるために有効である。第１セグメント２５の第１充填層２５ａが繊維充填層であることから、使用時の外側からの触り心地は、使用者に違和感を生じさせることがない。 Replacing the shortened second segment 26 with the first segment 25 is effective for increasing the delivery amount of the aerosol component. Since the first packed layer 25a of the first segment 25 is a fiber packed layer, the feeling of touch from the outside during use does not cause a sense of discomfort to the user.
　第２セグメント２６は、第２充填層２６ａと、第２充填層２６ａを覆うインナープラグラッパー２６ｂとで構成される。第２セグメント２６（フィルターセグメント）は、酢酸セルロース繊維が一般的な密度で充填されており、一般的なエアロゾル成分の濾過性能を有する。 The second segment 26 is composed of a second packed layer 26a and an inner plug wrapper 26b that covers the second packed layer 26a. The second segment 26 (filter segment) is filled with cellulose acetate fibers at a general density and has the filtering performance of a general aerosol component.
　第１セグメント２５と第２セグメント２６との間で、たばこセグメント２０Ａから放出されるエアロゾル（主流煙）をろ過するろ過性能を異ならせてもよい。第１セグメント２５および第２セグメント２６の少なくとも一方に、香料を含ませてもよい。フィルター部２０Ｃの構造は任意であり、上記のような複数のセグメントを有する構造であってもよいし、単一のセグメントによって構成されていてもよい。またフィルター部２０Ｃは、１つのセグメントで構成されてもよい。この場合、フィルター部２０Ｃは、第１セグメントまたは第２セグメントのいずれで構成されていてもよい。 The filtration performance for filtering the aerosol (mainstream smoke) emitted from the tobacco segment 20A may be different between the first segment 25 and the second segment 26. At least one of the first segment 25 and the second segment 26 may contain a fragrance. The structure of the filter unit 20C is arbitrary, and may be a structure having a plurality of segments as described above, or may be composed of a single segment. Further, the filter unit 20C may be composed of one segment. In this case, the filter unit 20C may be composed of either a first segment or a second segment.
　連結部２０Ｂは、円筒形をなしている。連結部２０Ｂは、例えば厚紙等によって円筒形に形成された紙管２３を有する。連結部２０Ｂには、エアロゾルを冷却するための冷却部材が充填されていてもよい。冷却部材としては、ポリ乳酸等のポリマーのシートが挙げられ、当該シートを折り畳んで充填することができる。さらに、たばこセグメント２０Ａと連結部２０Ｂの間には、たばこセグメント２０Ａの位置が変動することを抑制する支持部が設けられていてもよい。支持部は、第１セグメント２５のようなセンタホールフィルター等の公知の材料で構成できる。 The connecting portion 20B has a cylindrical shape. The connecting portion 20B has a paper tube 23 formed in a cylindrical shape by, for example, thick paper. The connecting portion 20B may be filled with a cooling member for cooling the aerosol. Examples of the cooling member include a sheet of a polymer such as polylactic acid, and the sheet can be folded and filled. Further, a support portion may be provided between the tobacco segment 20A and the connecting portion 20B to prevent the position of the tobacco segment 20A from fluctuating. The support portion can be made of a known material such as a center hole filter such as the first segment 25.
　ラッパー２８は、たばこセグメント２０Ａ、連結部２０Ｂ、およびフィルター部２０Ｃの外側に円筒形に巻かれて、これらを一体的に連結している。ラッパー２８の一方の面（内面）には、通気孔部２４の付近を除く全面または略全面に酢酸ビニルエマルジョン系接着剤が塗布されている。複数の通気孔部２４は、ラッパー２８によって、たばこセグメント２０Ａ、連結部２０Ｂ、およびフィルター部２０Ｃが一体にされた後に、外側からレーザ加工を施して形成される。 The wrapper 28 is wound in a cylindrical shape on the outside of the tobacco segment 20A, the connecting portion 20B, and the filter portion 20C, and these are integrally connected. A vinyl acetate emulsion-based adhesive is applied to one surface (inner surface) of the wrapper 28 on the entire surface or substantially the entire surface except the vicinity of the ventilation hole portion 24. The plurality of ventilation holes 24 are formed by laser processing from the outside after the tobacco segment 20A, the connecting portion 20B, and the filter portion 20C are integrated by the wrapper 28.
　通気孔部２４は、連結部２０Ｂを厚み方向に貫通するように２以上の貫通孔を有する。２以上の貫通孔は、香味吸引物品２０の中心軸の延長線上から見て、放射状に配置するように形成される。本実施形態では、通気孔部２４は、連結部２０Ｂに設けられているが、フィルター部２０Ｃに設けられていてもよい。また、本実施形態では、通気孔部２４の２以上の貫通孔は、１つの円環上に一定間隔を空けて１列に並んで設けられるが、２つの円環上に一定の間隔を空けて２列に並んで設けられていてもよいし、１列または２列の通気孔部２４が不連続または不規則に並んで設けられていてもよい。ユーザが吸口を咥えて吸引する際に、通気孔部２４を介して主流煙中に外気が取り込まれる。ただし、通気孔部２４は設けられていなくてもよい。 The ventilation hole portion 24 has two or more through holes so as to penetrate the connecting portion 20B in the thickness direction. The two or more through holes are formed so as to be arranged radially when viewed from the extension line of the central axis of the flavor suction article 20. In the present embodiment, the ventilation hole portion 24 is provided in the connecting portion 20B, but may be provided in the filter portion 20C. Further, in the present embodiment, the two or more through holes of the ventilation hole portion 24 are provided side by side in a row at regular intervals on one ring, but at regular intervals on the two rings. The vent holes 24 in one row or two rows may be provided side by side in two rows, or the ventilation holes 24 in one row or two rows may be provided side by side in a discontinuous or irregular manner. When the user holds the mouthpiece and sucks it, the outside air is taken into the mainstream smoke through the ventilation hole portion 24. However, the ventilation hole portion 24 may not be provided.
［実施例１］
　たばこ葉を、粉砕機（ホソカワミクロン製ＡＣＭ－５）を用いてＤ９０が５０～８００μｍとなるように粉砕して葉たばこ粒子を得た。Ｄ９０はマスターサイザー（ｍａｌｖｅｒｎ社製）にて測定した。葉たばこ粒子とバインダーとしてカルボキシメチルセルロース（日本製紙株式会社製、サンローズＦ　Ｆ３０ＭＣ）とをミキサーを用いてドライブレンドした。次いで、当該ドライブレンド物に、エアロゾル生成基材としてグリセリンと、媒体として水を添加し、ミキサーで混合して湿粉を調製した。各成分の配合は以下のとおりである。 [Example 1]
Tobacco leaves were pulverized using a pulverizer (ACM-5 manufactured by Hosokawa Micron) so that D90 was 50 to 800 μm to obtain leaf tobacco particles. D90 was measured with a master sizer (manufactured by malvern). Carboxymethyl cellulose (Nippon Paper Industries, Ltd., Sunrose FF30MC) as a binder was dry-blended with leaf tobacco particles using a mixer. Next, glycerin as an aerosol-forming base material and water as a medium were added to the dry blend, and the mixture was mixed with a mixer to prepare a wet powder. The composition of each component is as follows.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　表１の湿粉中重量において、たばこ葉粉砕物、グリセリン、バインダーは乾物重量を示し、水は仕込み重量とたばこ葉粉砕物、グリセリン、およびバインダーに含まれていた水分重量の合計量を示す。 In the wet powder medium weight in Table 1, the tobacco leaf crushed product, glycerin, and the binder indicate the dry matter weight, and the water indicates the total amount of the charged weight and the water content contained in the tobacco leaf crushed product, glycerin, and the binder.
　混練機（ダルトン社製、ＤＧ－１）を用いて、室温にて湿粉を６回混練して混合物を得た。ダイ形状はＴ形（Ｔダイ）、スクリュー回転数は３８．５ｒｐｍとした。 Using a kneader (manufactured by Dalton, DG-1), the wet powder was kneaded 6 times at room temperature to obtain a mixture. The die shape was T-shaped (T-die), and the screw rotation speed was 38.5 rpm.
　湿粉を２枚のテフロン（登録商標）フィルム（日東電工株式会社製NITOFLON(R)No.900UL）に挟み、カレンダー装置（由利ロール機械社製）を用いて、所定の厚さ（１００μｍ超）になるまで４段階で圧延して、フィルム／ウェットシート／フィルムの層構造を有する厚さ１０５μｍのラミネートを調製した。１～４段目のロールギャップは、それぞれ６５０μｍ、３３０μｍ、１８０μｍ、５μｍとした。４段目のロールギャップは最終的に得られたシートの厚さよりも厚いが、これはローラ間の圧力から解放されたシートが最終厚さ付近まで膨張したためである。 Wet powder is sandwiched between two Teflon (registered trademark) films (NITOFLON (R) No.900UL manufactured by Nitto Denko Corporation) and a calendar device (manufactured by Yuri Roll Machinery Co., Ltd.) is used to obtain a specified thickness (over 100 μm). Rolled in four steps until a film / wet sheet / film had a layered structure and a thickness of 105 μm was prepared. The roll gaps of the first to fourth stages were set to 650 μm, 330 μm, 180 μm, and 5 μm, respectively. The roll gap of the fourth stage is thicker than the thickness of the finally obtained sheet, because the sheet released from the pressure between the rollers expands to near the final thickness.
　ラミネートから１枚のテフロン（登録商標）フィルムを剥離し、通風乾燥機を用いて８０℃で１～２分乾燥した。次いで、もう１枚のフィルムを剥離し、同条件でウェットシートを乾燥し、本発明のたばこシートを製造した。 One Teflon (registered trademark) film was peeled off from the laminate and dried at 80 ° C. for 1 to 2 minutes using a ventilation dryer. Then, another film was peeled off and the wet sheet was dried under the same conditions to produce the tobacco sheet of the present invention.
［実施例２～５］
　バインダーとして表２に示すカルボキシメチルセルロース（いずれも日本製紙株式会社製）をそれぞれ用いた以外は、実施例１と同じ方法でたばこシートを製造し、評価した。 [Examples 2 to 5]
Tobacco sheets were produced and evaluated by the same method as in Example 1 except that carboxymethyl cellulose shown in Table 2 (both manufactured by Nippon Paper Industries, Ltd.) was used as the binder.
［比較例１］
　バインダーとして表２に示すカルボキシメチルセルロース（日本製紙株式会社製）をそれぞれ用いた以外は、実施例１と同じ方法でたばこシートを製造し、評価した。これらの結果を表３に示す。表中、仕上がりシート物性は、前述のとおりに乾燥を経て製造されたシートであって、絶乾状態までは乾燥していないシートの物性を示している。 [Comparative Example 1]
Tobacco sheets were produced and evaluated by the same method as in Example 1 except that carboxymethyl cellulose (manufactured by Nippon Paper Industries, Ltd.) shown in Table 2 was used as the binder. These results are shown in Table 3. In the table, the physical characteristics of the finished sheet indicate the physical characteristics of the sheet that has been dried as described above and has not been dried until it is completely dried.
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000003
　以下に、評価方法を説明する。
［刻こぼれ体積］
　図２に示す非燃焼内部加熱型喫煙システムを準備した。各例で調製したたばこシートを裁断して刻を調製した。当該刻を長さ１２ｍｍ、直径７ｍｍのラッパー２２内に７０体積％で充填し、たばこセグメント２０Ａを調製した。当該システムを喫煙機による喫煙試験（１４パフ、ＣＩＲ条件、３５０℃での一定加熱）に供した。喫煙試験後、たばこセグメント２０Ａから刻を静かに除去した。次いで新たに刻を再度ラッパー２２内に７０体積％で充填して２回目の喫煙試験に供した。このようにして合計２０回の喫煙試験を行い、ラッパー２２内に残留した総刻こぼれの体積を測定した。 The evaluation method will be described below.
[Volume of spillage]
The non-combustion internal heating type smoking system shown in FIG. 2 was prepared. Tobacco sheets prepared in each example were cut to prepare chopped pieces. The time was filled in a wrapper 22 having a length of 12 mm and a diameter of 7 mm in an amount of 70% by volume to prepare a tobacco segment 20A. The system was subjected to a smoking test with a smoking machine (14 puffs, CIR conditions, constant heating at 350 ° C.). After the smoking test, ticks were gently removed from the tobacco segment 20A. Then, the wrapper 22 was newly filled with 70% by volume and subjected to the second smoking test. In this way, a total of 20 smoking tests were performed, and the total volume of spills remaining in the wrapper 22 was measured.
［表面粗さ］
　顕微鏡（ＫＥＹＥＮＣＥ社製のＶＫ－Ｘ１００）を用いて、以下の手順で測定した。
１）シートの一番低い部分の焦点位置を設定
２）シートの一番高い部分の焦点位置を設定
３）前記１）と２）で得た区間を分割し、少しずつ焦点をずらしながら撮像
４）各部分の焦点位置と、一番低い部分の焦点位置の差から高さを測定
５）各位置の高さデータから粗さを算出（測定機ソフトで自動計算）し、算術表面粗さＳａを算出 [Surface roughness]
The measurement was performed by the following procedure using a microscope (VK-X100 manufactured by KEYENCE).
1) Set the focal position of the lowest part of the sheet 2) Set the focal position of the highest part of the sheet 3) Divide the sections obtained in 1) and 2) above, and take an image while shifting the focus little by little 4 ) Measure the height from the difference between the focal position of each part and the focal position of the lowest part. 5) Calculate the roughness from the height data of each position (automatically calculated by the measuring machine software), and calculate the arithmetic surface roughness Sa. Calculate
［加熱後凝固性］
　刻こぼれ体積に記載した条件で非燃焼内部加熱型喫煙システムを準備し、同じ条件で喫煙試験を１回実施した。試験後に前記システムからたばこセグメント２０Ａを取出し、先端から長手方向に６ｍｍの位置に治具を当てて一定速度で半径方向に圧縮し、治具が３．５ｍｍの位置に達した時点の負荷（Ｎ）を求め、加熱後凝固性を評価した。負荷の値が高いほど、加熱後に刻が固着しやすいので、刻こぼれが発生しにくい。 [Coagulation after heating]
A non-combustion internal heating type smoking system was prepared under the conditions described in the spill volume, and a smoking test was performed once under the same conditions. After the test, the tobacco segment 20A is taken out from the system, a jig is applied to a position 6 mm in the longitudinal direction from the tip and compressed in the radial direction at a constant speed, and the load (N) when the jig reaches the position of 3.5 mm. ) Was obtained, and the coagulation property after heating was evaluated. The higher the load value, the easier it is for the nicks to stick after heating, so spills are less likely to occur.
［引張強度］
　得られたシートを幅１５ｍｍ×長さ１８０ｍｍに裁断し、引張強度試験機（株式会社東洋精機製作所：ストログラフＥ－Ｓ）を用い、ROADRANGE：25、SPEEDRANGE：50の条件で測定し、引張強度を引張応力で評価した。 [Tensile strength]
The obtained sheet was cut into a width of 15 mm and a length of 180 mm, and measured using a tensile strength tester (Toyo Seiki Seisakusho Co., Ltd .: Strograph ES) under the conditions of ROADRANGE: 25 and SPEEDRANGE: 50, and the tensile strength was measured. Was evaluated by tensile stress.
［置換度］
　前述の測定方法により求めた。 [Degree of Substitution]
It was obtained by the above-mentioned measurement method.
　１　たばこシート
　１ｃ　たばこシートの裁断片
 
　１０　加熱装置
　１１　ボディ
　１２　ヒータ
 
　２０　非燃焼加熱型香味吸引物品
　２０Ａ　たばこセグメント
　２０Ｂ　連結部
　２０Ｃ　フィルター部
 
　２１　たばこシートまたはこれに由来する材料
　２２　ラッパー
　２３　紙管
　２４　通気孔部
　２５　第１セグメント
　２５ａ　第１充填層
　２５ｂ　インナープラグラッパー
　２６　第２セグメント
　２６ａ　第２充填層
　２６ｂ　インナープラグラッパー
　２７　アウタープラグラッパー
　２８　ラッパー 1 Tobacco sheet 1c Tobacco sheet cut pieces
10 Heating device 11 Body 12 Heater
20 Non-combustion heating type flavor suction article 20A Tobacco segment 20B Connection part 20C Filter part
21 Tobacco sheet or material derived from it 22 Wrapper 23 Paper tube 24 Vent 25 1st segment 25a 1st packed layer 25b Inner plug wrapper 26 2nd segment 26a 2nd packed layer 26b Inner plug wrapper 27 Outer plug wrapper 28 Wrapper

Claims (11)

  1. 　たばこ材料と、
    　置換度が０．６５以上であるセルロース誘導体と、を含む、
    　たばこシート。     Tobacco material and
    Containing a cellulose derivative having a degree of substitution of 0.65 or more,
    Tobacco sheet.
  2. 　前記置換度が０．７以上である、請求項１に記載のシート。 The sheet according to claim 1, wherein the degree of substitution is 0.7 or more.
  3. 　前記置換度が０．８以上である、請求項２に記載のシート。 The sheet according to claim 2, wherein the degree of substitution is 0.8 or more.
  4. 　前記セルロース誘導体がカルボキシアルキル化セルロースである、請求項１～３のいずれかに記載のシート。 The sheet according to any one of claims 1 to 3, wherein the cellulose derivative is carboxyalkylated cellulose.
  5. 　算術平均表面粗さＳａが０．０３ｍｍ以下である、請求項１～４のいずれかに記載のシート。 The sheet according to any one of claims 1 to 4, wherein the arithmetic average surface roughness Sa is 0.03 mm or less.
  6. 　圧力成形シートである、請求項１～５のいずれかに記載のシート。 The sheet according to any one of claims 1 to 5, which is a pressure-formed sheet.
  7. 　少なくとも、たばこ材料と、前記セルロース誘導体と、媒体を含む混合物を調製する工程１、
    　前記混合物を基材上に展開してウェットシートを調製する工程２、ならびに
    　前記ウェットシートを乾燥する工程３、
    を備える、請求項１～６のいずれかに記載のシートの製造方法。     Step 1, preparing a mixture containing at least a tobacco material, the cellulose derivative, and a medium.
    Step 2 of developing the mixture on a substrate to prepare a wet sheet, and step 3 of drying the wet sheet.
    The method for manufacturing a sheet according to any one of claims 1 to 6.
  8. 　前記工程１が、たばこ材料と、前記セルロース誘導体と、媒体とを、一軸または多軸混練機にて混練することを含む、請求項７に記載の製造方法。 The production method according to claim 7, wherein the step 1 comprises kneading the tobacco material, the cellulose derivative, and the medium with a uniaxial or multiaxial kneader.
  9. 　前記工程２が、混合物を、ローラを用いて圧展する、またはダイから押出すことを含む、請求項７または８に記載の製造方法。 The production method according to claim 7 or 8, wherein the step 2 comprises compressing the mixture using a roller or extruding the mixture from a die.
  10. 　前記工程２が、２つの基材フィルムの間にウェットシートが存在するラミネートシートを調製することを含む、請求項９に記載の製造方法。 The manufacturing method according to claim 9, wherein the step 2 comprises preparing a laminated sheet in which a wet sheet is present between two base films.
  11. 　請求項１～６のいずれかに記載のたばこシートまたはこれに由来する材料を備える、非燃焼加熱型喫煙物品。 A non-combustion heating type smoking article comprising the tobacco sheet according to any one of claims 1 to 6 or a material derived from the same.
PCT/JP2021/036387 2020-10-02 2021-10-01 Tobacco sheet WO2022071562A1 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
JP2022554132A JPWO2022071562A1 (en) 2020-10-02 2021-10-01
EP21875858.9A EP4223149A4 (en) 2020-10-02 2021-10-01 Tobacco sheet
PCT/JP2022/029113 WO2023053704A1 (en) 2021-10-01 2022-07-28 Tobacco sheet for non-combustion heating flavor inhaler, non-combustion heating flavor inhaler, and non-combustion heating flavor inhalation system
EP22875581.5A EP4410121A1 (en) 2021-10-01 2022-07-28 Tobacco sheet for non-combustion heating flavor inhaler, non-combustion heating flavor inhaler, and non-combustion heating flavor inhalation system
KR1020247014614A KR20240090293A (en) 2021-10-01 2022-07-28 Tobacco sheet for non-combustion heating type flavor inhaler, non-combustion heating type flavor inhaler, and non-combustion heating type flavor inhalation system
JP2023550416A JPWO2023053704A1 (en) 2021-10-01 2022-07-28
KR1020247014423A KR20240067128A (en) 2021-10-01 2022-09-30 Tobacco sheet for non-combustion heating type flavor inhaler, non-combustion heating type flavor inhaler, and non-combustion heating type flavor inhalation system
PCT/JP2022/036764 WO2023054691A1 (en) 2021-10-01 2022-09-30 Tobacco sheet for non-combustion heating-type flavor inhaler and method for manufacturing same, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhaling system
JP2023551913A JPWO2023054691A1 (en) 2021-10-01 2022-09-30
JP2023551910A JPWO2023054688A1 (en) 2021-10-01 2022-09-30
EP22876553.3A EP4410124A1 (en) 2021-10-01 2022-09-30 Tobacco sheet for non-combustion heating-type flavor inhaler and method for manufacturing same, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhaling system
KR1020247014529A KR20240067130A (en) 2021-10-01 2022-09-30 Tobacco sheet for non-combustion heating type flavor inhaler and manufacturing method thereof, non-combustion heating type flavor inhaler, and non-combustion heating type flavor inhalation system
EP22876550.9A EP4410122A1 (en) 2021-10-01 2022-09-30 Tobacco sheet for non-combustion heating-type flavor inhaler, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhalation system
PCT/JP2022/036754 WO2023054688A1 (en) 2021-10-01 2022-09-30 Tobacco sheet for non-combustion heating-type flavor inhaler, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhalation system
US18/621,151 US20240268440A1 (en) 2021-10-01 2024-03-29 Tobacco sheet for non-combustion heating flavor inhaler, non-combustion heating flavor inhaler, and non-combustion heating flavor inhalation system
US18/623,063 US20240245091A1 (en) 2021-10-01 2024-04-01 Tobacco sheet for non-combustion heating-type flavor inhaler and method for manufacturing same, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhaling system
US18/623,322 US20240251840A1 (en) 2021-10-01 2024-04-01 Tobacco sheet for non-combustion heating-type flavor inhaler, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhalation system

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JP2020-168065 2020-10-02

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