WO2022071562A1 - たばこシート - Google Patents

たばこシート 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
English (en)
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/EP4223149A1/en
Publication of WO2022071562A1 publication Critical patent/WO2022071562A1/ja
Priority to PCT/JP2022/029113 priority patent/WO2023053704A1/ja
Priority to PCT/JP2022/036764 priority patent/WO2023054691A1/ja
Priority to PCT/JP2022/036754 priority patent/WO2023054688A1/ja

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    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)
PCT/JP2021/036387 2020-10-02 2021-10-01 たばこシート WO2022071562A1 (ja)

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JP2022554132A JPWO2022071562A1 (xx) 2020-10-02 2021-10-01
EP21875858.9A EP4223149A1 (en) 2020-10-02 2021-10-01 Tobacco sheet
PCT/JP2022/029113 WO2023053704A1 (ja) 2021-10-01 2022-07-28 非燃焼加熱型香味吸引器用たばこシート、非燃焼加熱型香味吸引器、及び非燃焼加熱型香味吸引システム
PCT/JP2022/036764 WO2023054691A1 (ja) 2021-10-01 2022-09-30 非燃焼加熱型香味吸引器用たばこシート及びその製造方法、非燃焼加熱型香味吸引器、並びに非燃焼加熱型香味吸引システム
PCT/JP2022/036754 WO2023054688A1 (ja) 2021-10-01 2022-09-30 非燃焼加熱型香味吸引器用たばこシート、非燃焼加熱型香味吸引器、及び非燃焼加熱型香味吸引システム

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US3278521A (en) 1963-02-08 1966-10-11 Hercules Inc Hydroxypropyl cellulose and process
US3625225A (en) 1969-07-24 1971-12-07 Amf Inc Reconstituted tobacco
US3872871A (en) 1973-12-27 1975-03-25 Amf Inc The method of making a reconstituted tobacco foamed sheet
JPS515014A (xx) * 1974-05-24 1976-01-16 Agfa Gevaert Nv
US3968804A (en) 1974-05-20 1976-07-13 Amf Incorporated Extruded tobacco sheet
JP5292410B2 (ja) 2008-10-23 2013-09-18 日本たばこ産業株式会社 非燃焼タイプ香味吸引物品
JP2013537696A (ja) * 2010-08-17 2013-10-03 ヴァルタ マイクロ イノヴェーション ゲゼルシャフト ミット ベシュレンクテル ハフツング 可撓性電池電極及びその製造方法
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JP2019213895A (ja) * 2019-08-08 2019-12-19 住友ベークライト株式会社 医療用包装シートの原反ロールおよび医療用包装材
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WO2020148902A1 (ja) * 2019-01-18 2020-07-23 日本たばこ産業株式会社 積層再構成たばこシートの製造方法
WO2020157934A1 (ja) * 2019-01-31 2020-08-06 日本たばこ産業株式会社 香味発生セグメント、ならびにこれを備える香味発生物品および香味吸引システム

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893400A (en) 1956-12-13 1959-07-07 Gerlach Gmbh E Tobacco foils and methods of making same
US3278521A (en) 1963-02-08 1966-10-11 Hercules Inc Hydroxypropyl cellulose and process
US3625225A (en) 1969-07-24 1971-12-07 Amf Inc Reconstituted tobacco
US3872871A (en) 1973-12-27 1975-03-25 Amf Inc The method of making a reconstituted tobacco foamed sheet
US3968804A (en) 1974-05-20 1976-07-13 Amf Incorporated Extruded tobacco sheet
JPS515014A (xx) * 1974-05-24 1976-01-16 Agfa Gevaert Nv
JP5292410B2 (ja) 2008-10-23 2013-09-18 日本たばこ産業株式会社 非燃焼タイプ香味吸引物品
JP2013537696A (ja) * 2010-08-17 2013-10-03 ヴァルタ マイクロ イノヴェーション ゲゼルシャフト ミット ベシュレンクテル ハフツング 可撓性電池電極及びその製造方法
JP2014510165A (ja) * 2011-02-11 2014-04-24 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 微生物バイオマスから脂質含有組成物を得る方法
JP2015523419A (ja) * 2012-05-11 2015-08-13 オムヤ インターナショナル アーゲー 電荷を制御したｐｈｃｈ
JP2019048472A (ja) * 2014-03-26 2019-03-28 大日本印刷株式会社 表面加工フィルム及びその製造方法
JP2019038731A (ja) * 2017-08-29 2019-03-14 日本製紙株式会社 固形状セメント混和剤
JP2019218658A (ja) * 2018-06-20 2019-12-26 大日本印刷株式会社 離型シートおよび樹脂製物品
WO2020071482A1 (ja) * 2018-10-04 2020-04-09 凸版印刷株式会社 コンクリート加飾用工程紙及びコンクリート加飾用型押材
WO2020148902A1 (ja) * 2019-01-18 2020-07-23 日本たばこ産業株式会社 積層再構成たばこシートの製造方法
WO2020157934A1 (ja) * 2019-01-31 2020-08-06 日本たばこ産業株式会社 香味発生セグメント、ならびにこれを備える香味発生物品および香味吸引システム
JP2019213895A (ja) * 2019-08-08 2019-12-19 住友ベークライト株式会社 医療用包装シートの原反ロールおよび医療用包装材

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