WO2023054691A1 - 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 - Google Patents
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 Download PDFInfo
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- WO2023054691A1 WO2023054691A1 PCT/JP2022/036764 JP2022036764W WO2023054691A1 WO 2023054691 A1 WO2023054691 A1 WO 2023054691A1 JP 2022036764 W JP2022036764 W JP 2022036764W WO 2023054691 A1 WO2023054691 A1 WO 2023054691A1
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- tobacco
- sheet
- combustion heating
- flavor inhaler
- tobacco sheet
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- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 1
- 235000012141 vanillin Nutrition 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000010679 vetiver oil Substances 0.000 description 1
- 239000001846 viola odorata l. leaf absolute Substances 0.000 description 1
- KPQMCAKZRXOZLB-AATRIKPKSA-N vomifoliol Chemical compound CC(O)\C=C\C1(O)C(C)=CC(=O)CC1(C)C KPQMCAKZRXOZLB-AATRIKPKSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- OENHQHLEOONYIE-JLTXGRSLSA-N β-Carotene Chemical compound CC=1CCCC(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C OENHQHLEOONYIE-JLTXGRSLSA-N 0.000 description 1
Images
Classifications
-
- 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
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
-
- 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
-
- 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
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
- A24B15/36—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances containing a heterocyclic ring
- A24B15/40—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances containing a heterocyclic ring having only oxygen or sulfur as hetero atoms
- A24B15/403—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances containing a heterocyclic ring having only oxygen or sulfur as hetero atoms having only oxygen as hetero atoms
-
- 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
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B7/00—Cutting 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
- A24B7/00—Cutting tobacco
- A24B7/04—Cutting tobacco by machines with revolving knives
-
- 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
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/20—Devices using solid inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
Definitions
- the present invention relates to a tobacco sheet for a non-combustion heating flavor inhaler, a manufacturing method thereof, a non-combustion heating flavor inhaler, and a non-combustion heating flavor inhalation system.
- a combustion-type flavor inhaler obtains flavor by burning tobacco fillings including leaf tobacco and tobacco sheets.
- Patent Literature 1 discloses a tobacco sheet used in a combustion type flavor inhaler.
- a non-combustion heating type flavor inhaler has been proposed that obtains flavor by heating a flavor source such as a tobacco sheet instead of burning it.
- the heating temperature of the non-combustion-heating flavor inhaler is lower than the combustion temperature of the combustion-type flavor inhaler, for example, about 400° C. or less.
- an aerosol generating agent can be added to the flavor source in the non-combustion heating type flavor inhaler from the viewpoint of increasing the amount of smoke.
- the aerosol-generating agent is vaporized by heating to generate an aerosol. Since the aerosol is supplied to the user together with flavor components such as tobacco components, the user can obtain sufficient flavor.
- a non-combustion heating flavor inhaler can comprise, for example, a tobacco-containing segment filled with tobacco sheets or the like, a cooling segment, and a filter segment.
- the axial length of the tobacco-containing segment of the non-combustion-heating flavor inhaler is generally shorter than the axial length of the tobacco-containing segment of the normal combustion-type flavor inhaler in relation to the heating heater. Therefore, in the non-combustion heating type flavor inhaler, a large amount of tobacco sheets are filled in the short tobacco-containing segments in order to secure the amount of aerosol generated during heating.
- non-combustion heating type flavor inhalers usually use tobacco sheets with low swelling, that is, high density tobacco sheets.
- the swelling property is a value indicating the volume of a tobacco sheet having a predetermined mass when notches are compressed under a constant pressure for a certain period of time.
- the present inventors believe that if a tobacco sheet with low swelling (high density) is used, the total heat capacity of the tobacco-containing segment increases. It was found that the tobacco sheet filled in the tobacco-containing segment does not sufficiently contribute to the generation of aerosol depending on the heating method and the capacity of the heater. In order to solve this problem, it is conceivable to reduce the total heat capacity of the tobacco-containing segment.
- the present inventors (1) reduce the specific heat of the tobacco raw material contained in the tobacco sheet, and (2) use a highly bulky (low-density) tobacco sheet. I considered using it. However, as for (1), it is difficult to reduce the specific heat of the tobacco raw material itself, so it was considered effective to reduce the total heat capacity of the tobacco-containing segment by (2). Therefore, it is desired to develop a highly bulky (low density) tobacco sheet suitable for non-combustion heating type flavor inhalers.
- An object of the present invention is to provide a highly bulky non-combustion heating flavor inhaler tobacco sheet, a non-combustion heating flavor inhaler including the tobacco sheet, and a non-combustion heating flavor inhalation system.
- a tobacco sheet for a non-combustion heating type flavor inhaler comprising a tobacco raw material, the tobacco sheet having a wavy cross section in the thickness direction of the tobacco sheet.
- Aspect 2 The sheet according to aspect 1, wherein at least one of the arc-shaped curved surface present on the surface and the arc-shaped curved surface present on the back surface of the sheet has an area arithmetic mean surface roughness Sa of 5 to 30 ⁇ m.
- Aspect 3 3.
- the sheet of aspect 1 or 2 which is a pressure-formed sheet.
- Aspect 4 The sheet according to any one of aspects 1 to 3, comprising a cellulose derivative having a degree of substitution of 0.65 or more.
- Aspect 5 The sheet according to aspect 4, wherein the degree of substitution is 0.7 or more.
- Aspect 6 A tobacco-containing segment comprising the tobacco sheet for a non-combustion heating type flavor inhaler according to any one of aspects 1 to 5, A non-combustion heated flavor inhaler comprising: Aspect 7 A non-combustion heated flavor inhaler according to aspect 6; a heating device for heating the tobacco-containing segment; A non-combustion heated flavor suction system.
- the present invention it is possible to provide a highly bulky non-combustion heating flavor inhaler tobacco sheet, a non-combustion heating flavor inhaler including the tobacco sheet, and a non-combustion heating flavor inhalation system.
- FIG. 1 is a cross-sectional view in the thickness direction showing an example of a tobacco sheet according to this embodiment;
- FIG. It is a sectional view showing an example of a non-combustion heating type flavor inhaler concerning this embodiment.
- An example of the non-combustion heating flavor inhalation system according to the present embodiment in which (a) the state before the non-combustion heating flavor inhaler is inserted into the heating device, and (b) the non-combustion heating flavor inhaler is heated. It is sectional drawing which shows the state which inserts into an apparatus and heats.
- 1 is a diagram showing one aspect of a tobacco segment; FIG.
- a tobacco sheet for a non-combustion heating type flavor inhaler (hereinafter also referred to as a "tobacco sheet") according to the present embodiment contains tobacco raw material, and has a wavy cross-section in the thickness direction of the tobacco sheet. Since the tobacco sheet according to the present embodiment has a corrugated cross-sectional shape in the thickness direction, it is bulky and has a high swelling property. Therefore, by using the tobacco sheet according to the present embodiment, the total heat capacity of the tobacco-containing segment can be reduced, and the tobacco sheet filled in the tobacco-containing segment can sufficiently contribute to aerosol generation.
- the tobacco sheet according to the present embodiment preferably further contains an aerosol-generating agent and one or more molding agents. improve more.
- the tobacco sheet according to this embodiment has a wavy cross section in the thickness direction. That is, when the tobacco sheet according to the present embodiment is cut in the thickness direction in one plane direction, the cross section has a corrugated shape.
- the plane direction may be, for example, the longitudinal direction or the lateral direction of the tobacco sheet.
- the “wavy shape” is not particularly limited as long as it has a shape that undulates vertically, and the crests of the waves may have a straight shape or a curved shape. Also, the waves may be regular or irregular.
- FIG. 1(1) An example of the cross-sectional shape in the thickness direction of the tobacco sheet according to this embodiment is shown in FIG. 1(1).
- a tobacco sheet 1 shown in FIG. 1(1) has waves 2 in a cross section in the thickness direction.
- the width w1 of the wave 2 is not particularly limited, it is preferably within the range of 0.1 to 10.0 mm.
- the height w2 of the wave 2 is not particularly limited, but is preferably within the range of 0.1 to 5.0 mm.
- the thickness w3 of the tobacco sheet 1 is preferably within the range of 100-1000 ⁇ m.
- the wave 2 may have a sawtooth shape 3, as shown in FIG. 1(1).
- the size of the tobacco sheet according to the present embodiment in the planar direction is not particularly limited, but may be, for example, length: 5.0 to 40.0 mm and width: 0.5 to 2.0 mm. FIG. 1(2) will be described later.
- the tobacco raw material contained in the tobacco sheet according to the present embodiment is not particularly limited as long as it contains tobacco components, and examples thereof include tobacco powder and tobacco extract.
- Tobacco powder includes, for example, leaf tobacco, core bones, residual stems, and the like. These may be used alone or in combination of two or more. By chopping these into a predetermined size, they can be used as tobacco powder.
- the size of the tobacco powder it is preferable that the cumulative 90% particle size (D90) in the volume-based particle size distribution measured by the dry laser diffraction method is 200 ⁇ m or more from the viewpoint of further improving the swelling property.
- the tobacco powder content in 100% by mass of the tobacco sheet is preferably 45 to 95% by mass, more preferably 50 to 93% by mass, and more preferably 60 to 85% by mass. % is more preferred.
- the tobacco extract for example, leaf tobacco is crushed, mixed and stirred with a solvent such as water to extract a water-soluble component from the leaf tobacco, and the resulting water extract is dried under reduced pressure and concentrated. Tobacco extracts obtained may be mentioned.
- the tobacco sheet according to this embodiment preferably further contains an aerosol-generating agent.
- Aerosol-generating agents include, for example, glycerin, propylene glycol, 1,3-butanediol and the like. These may be used alone or in combination of two or more.
- the ratio of the aerosol-generating agent contained in 100% by mass of the tobacco sheet is preferably 4 to 50% by mass.
- the proportion of the aerosol-generating agent is 4% by mass or more, sufficient aerosol can be generated during heating from the viewpoint of quantity.
- the proportion of the aerosol generating agent is 50% by mass or less, sufficient aerosol can be generated during heating from the viewpoint of heat capacity.
- the proportion of the aerosol generating agent is more preferably 6 to 40% by mass, even more preferably 8 to 30% by mass, and particularly preferably 10 to 20% by mass.
- the tobacco sheet according to the present embodiment preferably further contains a molding agent from the viewpoint of shape retention.
- the tobacco sheet according to the present embodiment has the first molding agent and the second molding agent from the viewpoint of being able to sufficiently achieve both the retention performance of the aerosol generating agent and the retention performance of the corrugated shape of the tobacco sheet.
- the first molding agent and the second molding agent may be of different types, or the types of molding agents may be the same but the forms may be different.
- the first molding agent include polysaccharides, proteins, synthetic polymers and the like. Examples of polysaccharides include cellulose derivatives and naturally occurring polysaccharides.
- Cellulose derivatives include, for example, cellulose ethers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxymethylethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, benzylcellulose, tritylcellulose, cyanoethylcellulose, carboxymethylcellulose, carboxyethylcellulose, aminoethylcellulose; Organic acid esters such as cellulose, cellulose formate, cellulose propionate, cellulose butyrate, cellulose benzoate, cellulose phthalate, and tosyl cellulose; and inorganic acid esters such as cellulose nitrate, cellulose sulfate, cellulose phosphate, and cellulose xanthate. be done.
- cellulose ethers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxymethylethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, benzylcellulose, tritylcellulose
- Naturally-derived polysaccharides include guar gum, tara gum, roasted bean gum, tamarind seed gum, pectin, arabic gum, tragacanth gum, karaya gum, gutti gum, arabinogalactan, amaseed gum, cascha gum, psyllium seed gum, and mugwort seed gum.
- plant-derived polysaccharides agar, alginic acid, propylene glycol alginate, furcelleran, algae-derived polysaccharides such as fukuronori extract; xanthan gum, gellan gum, curdlan, pullulan, Agrobacterium succinoglycan, welan gum, macro Microorganism-derived polysaccharides such as homopsis gum and rhamzan gum; crustacean-derived polysaccharides such as chitin, chitosan, and glucosamine; and starches such as starch, sodium starch glycolate, pregelatinized starch, and dextrin.
- proteins examples include grain proteins such as wheat gluten and rye gluten.
- Synthetic polymers include, for example, polyphosphoric acid, sodium polyacrylate, polyvinylpyrrolidone, and the like.
- the second molding agent although different from the first molding agent, the same polysaccharides, proteins, synthetic polymers, etc. as those of the first molding agent can be used.
- the ratio of the first molding agent contained in 100% by mass of the tobacco sheet is preferably 0.1 to 15% by mass.
- the ratio of the first molding agent is 0.1% by mass or more, the raw material mixture can be easily molded into a sheet. Further, since the ratio of the first molding agent is 15% by mass or less, it is possible to sufficiently use other raw materials for securing the functions required for the tobacco-containing segment of the non-combustion heating type flavor inhaler.
- the proportion of the first molding agent is more preferably 0.1 to 12% by mass, even more preferably 0.1 to 10% by mass, particularly 0.1 to 7% by mass. preferable.
- the ratio of the second molding agent contained in 100% by mass of the tobacco sheet is preferably 0.1 to 15% by mass.
- the ratio of the second molding agent is 0.1% by mass or more, the raw material mixture can be easily molded into a sheet. Further, since the ratio of the second molding agent is 15% by mass or less, it is possible to sufficiently use other raw materials for securing the functions required for the tobacco-containing segment of the non-combustion heating type flavor inhaler.
- the proportion of the second molding agent is more preferably 0.1 to 12% by mass, even more preferably 0.1 to 10% by mass, particularly 0.1 to 7% by mass. preferable.
- the first molding agent and the second molding agent are the same type of molding agent but different in form
- the first molding agent may be powder and the second molding agent may be solution or slurry.
- a molding agent is directly mixed as a powder as a first molding agent, and a molding agent is dispersed or swollen in a solvent such as water and mixed as a second molding agent. can be done.
- a solvent such as water
- the tobacco sheet according to this embodiment may further contain a reinforcing agent from the viewpoint of further improving physical properties.
- a reinforcing agent include fibrous substances such as fibrous pulp and fibrous synthetic cellulose, and liquid substances such as pectin suspension having a surface coating function that forms a film when dried. These may be used alone or in combination of two or more.
- the proportion of the reinforcing agent contained in 100% by mass of the tobacco sheet is preferably 4 to 40% by mass. Within this range, other raw materials can be sufficiently used to secure the functions required for the tobacco-containing segment of the non-combustion-heating flavor inhaler.
- the ratio of the reinforcing agent is more preferably 4.5 to 35% by mass, more preferably 5 to 30% by mass.
- the tobacco sheet according to this embodiment may further contain a humectant from the viewpoint of maintaining quality.
- moisturizing agents include sugar alcohols such as sorbitol, erythritol, xylitol, maltitol, lactitol, mannitol, and reduced maltose starch syrup. These may be used alone or in combination of two or more.
- the ratio of the humectant contained in 100% by mass of the tobacco sheet is preferably 1 to 15% by mass. Within this range, other raw materials can be sufficiently used to secure the functions required for the tobacco-containing segment of the non-combustion-heating flavor inhaler.
- the ratio of the moisturizing agent is more preferably 2 to 12% by mass, even more preferably 3 to 10% by mass.
- the tobacco sheet according to the present embodiment may contain, in addition to the tobacco raw material, the aerosol-generating agent, the molding agent (first and second molding agents), the reinforcing agent, and the moisturizing agent, if necessary, a flavoring agent and a flavoring agent.
- Flavoring agents such as seasonings, coloring agents, humectants, preservatives, diluents such as inorganic substances, and the like can be included.
- the tobacco sheet according to the present embodiment has a swelling property of 190 cc/100 g or more.
- the swelling property is 190 cc/100 g or more, the total heat capacity of the tobacco-containing segment of the non-combustion heating type flavor inhaler can be sufficiently reduced, and the tobacco sheet filled in the tobacco-containing segment is generated by aerosol generation. be able to contribute.
- the swelling property is more preferably 210 cc/100 g or more, more preferably 230 cc/100 g or more.
- the upper limit of the swelling range is not particularly limited, it can be, for example, 800 cc/100 g or less.
- the swelling property was evaluated by cutting a tobacco sheet into a size of 0.8 mm ⁇ 20 mm, leaving it in a conditioned room at 22° C. and 60% for 48 hours, and applying it to DD-60A (trade name, manufactured by Borgwald). It is a value measured by The measurement is carried out by placing 15 g of cut tobacco sheets in a cylindrical container with an inner diameter of 60 mm and compressing the container with a load of 3 kg for 30 seconds to obtain the volume.
- the tobacco sheet according to the present embodiment is produced by, for example, preparing a mixture containing a tobacco raw material, an aerosol-generating agent, a first molding agent, and a second molding agent, and rolling the mixture to form a rolled product. and a step of pressing a rotary roll blade against the rolled product to cut it into strips and imparting a corrugated shape. Note that the process of imparting a wave shape is also called a rippling process.
- the tobacco sheet according to this embodiment can be produced by the following method.
- a sheet cut into strips by a rotary roll blade is given a wavy shape and sawtooth shape as shown in FIG.
- the rolled product is not cut by a rotary roll blade, for example, by peeling off the rolled product on the rolling roller with a doctor knife, resistance is applied when peeled from the roll, and the wavy shape is also applied. and a sawtooth shape.
- the surface of the pressure roller may be heated or cooled, and the number of revolutions of the pressure roller may be adjusted depending on the purpose. Furthermore, by adjusting the spacing between the rolling rollers, it is possible to obtain a tobacco sheet with a desired basis weight.
- the non-combustion-heating flavor inhaler according to this embodiment includes a tobacco-containing segment including the tobacco sheet or the like according to this embodiment. Since the non-combustion-heating flavor inhaler according to the present embodiment includes the tobacco-containing segment filled with the highly bulky tobacco sheet or the like according to the present embodiment, the total heat capacity of the tobacco-containing segment should be sufficiently reduced. , allowing the tobacco sheet filled in the tobacco-containing segment to contribute more to aerosol generation.
- the non-combustion heating type flavor inhaler 4 shown in FIG. It comprises a segment 7 and a filter segment 8 .
- the non-combustion-heating flavor inhaler according to this embodiment may have segments other than the tobacco-containing segment, cooling segment, center hole segment, and filter segment.
- the axial length of the non-combustion heating type flavor inhaler according to the present embodiment is not particularly limited, but is preferably 40 mm or more and 90 mm or less, more preferably 50 mm or more and 75 mm or less, 50 mm or more, It is more preferably 60 mm or less.
- the circumference of the non-combustion heating flavor inhaler is preferably 16 mm or more and 25 mm or less, more preferably 20 mm or more and 24 mm or less, and even more preferably 21 mm or more and 23 mm or less.
- the length of the tobacco-containing segment is 20 mm
- the length of the cooling segment is 20 mm
- the length of the center hole segment is 8 mm
- the length of the filter segment is 7 mm.
- the length of the filter segment can be selected within a range of 4 mm or more and 10 mm or less.
- the ventilation resistance of the filter segments at that time is selected to be 15 mmH 2 O/seg or more and 60 mmH 2 O/seg or less per segment.
- the tobacco sheet according to the present embodiment is filled in wrapping paper (hereinafter also referred to as wrapper).
- wrapper The method of packing the tobacco sheet into the wrapping paper is not particularly limited.
- the tobacco sheet may be wrapped in a wrapper, or the tobacco sheet may be packed in a cylindrical wrapper.
- the shape of the tobacco sheet has a longitudinal direction such as a rectangular shape, the tobacco sheet may be packed so that the longitudinal direction is in an unspecified direction in the wrapper, and the tobacco-containing segment 5 may be packed in an axial direction or a longitudinal direction. They may be aligned and filled in a direction perpendicular to the axial direction.
- the cooling segment 6 may be configured by a cylindrical member 10.
- the tubular member 10 may be, for example, a paper tube formed by processing cardboard into a cylindrical shape.
- the tubular member 10 and the mouthpiece lining paper 15, which will be described later, are provided with perforations 11 penetrating both. Due to the presence of the perforations 11 outside air is introduced into the cooling segment 6 during suction. As a result, the vaporized aerosol component generated by heating the tobacco-containing segment 5 comes into contact with the outside air, and its temperature decreases, liquefying to form an aerosol.
- the diameter (spanning length) of the perforations 11 is not particularly limited, but may be, for example, 0.5 mm or more and 1.5 mm or less.
- the number of perforations 11 is not particularly limited, and may be one or two or more. For example, multiple perforations 11 may be provided on the circumference of the cooling segment 6 .
- the amount of outside air introduced from the perforations 11 is preferably 85% by volume or less, more preferably 80% by volume or less, relative to the total volume of the gas inhaled by the user.
- the ratio of the amount of outside air is 85% by volume or less, it is possible to sufficiently suppress reduction in flavor due to dilution by outside air.
- this is also called a ventilation ratio.
- the lower limit of the ventilation ratio range is preferably 55% by volume or more, more preferably 60% by volume or more.
- the cooling segment may also be a segment comprising a crumpled, pleated, gathered or folded sheet of suitable construction material.
- the cross-sectional profile of such elements may exhibit randomly oriented channels.
- the cooling segment may also include a bundle of longitudinally extending tubes.
- Such cooling segments may be formed, for example, from pleated, gathered, or folded sheet material wrapped with wrapping paper.
- the axial length of the cooling segment can be, for example, 7 mm or more and 28 mm or less, and can be, for example, 18 mm.
- the cooling segment can be substantially circular in its axial cross-sectional shape, and its diameter can be, for example, 5 mm or more and 10 mm or less, and can be, for example, about 7 mm.
- the center hole segment is composed of a filling layer having one or more hollow portions and an inner plug wrapper (inner wrapping paper) covering the filling layer.
- the center hole segment 7 is composed of a second filling layer 12 having a hollow portion and a second inner plug wrapper 13 covering the second filling layer 12 .
- the center hole segment 7 has the function of increasing the strength of the mouthpiece segment 9 .
- the second filling layer 12 has an inner diameter of ⁇ 1.0 mm, for example, filled with cellulose acetate fibers at a high density and hardened by adding a plasticizer containing triacetin in an amount of 6% by mass or more and 20% by mass or less based on the mass of cellulose acetate.
- the second packed layer 12 has a high packing density of fibers, air and aerosol flow only through the hollow portion and hardly flow inside the second packed layer 12 during suction. Since the second filling layer 12 inside the center hole segment 7 is a fiber filling layer, the feeling of touch from the outside during use hardly causes the user to feel uncomfortable. Note that the center hole segment 7 may not have the second inner plug wrapper 13 and may retain its shape by thermoforming.
- the configuration of the filter segment 8 is not particularly limited, it may be composed of a single or a plurality of packed layers. The outer side of the packing layer may be wrapped with one or more wrapping papers.
- the ventilation resistance per segment of the filter segment 8 can be appropriately changed depending on the amount of filler, the material, etc. with which the filter segment 8 is filled. For example, when the filler is cellulose acetate fiber, increasing the amount of cellulose acetate fiber with which the filter segment 8 is filled can increase the ventilation resistance. When the filler is cellulose acetate fiber, the packing density of the cellulose acetate fiber can be 0.13-0.18 g/cm 3 .
- the airflow resistance is a value measured by an airflow resistance measuring instrument (trade name: SODIMAX, manufactured by SODIM).
- the length of the circumference of the filter segment 8 is not particularly limited, it is preferably 16 to 25 mm, more preferably 20 to 24 mm, even more preferably 21 to 23 mm.
- the axial length of the filter segment 8 can be selected from 4 to 10 mm, and is selected so that its ventilation resistance is from 15 to 60 mmH 2 O/seg.
- the axial length of the filter segment 8 is preferably 5-9 mm, more preferably 6-8 mm.
- the cross-sectional shape of the filter segment 8 is not particularly limited, but may be, for example, circular, elliptical, polygonal, or the like.
- the filter segment 8 may be directly added with destructible capsules containing perfume, perfume beads, and perfume.
- the center hole segment 7 and the filter segment 8 can be connected with an outer plug wrapper (outer wrapping paper) 14 .
- the outer plug wrapper 14 can be, for example, a cylinder of paper.
- the tobacco-containing segment 5 , cooling segment 6 , connected center hole segment 7 and filter segment 8 can be connected by mouthpiece lining paper 15 .
- These connections can be made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper 15, inserting the three segments, and winding them.
- these segments may be divided into multiple times and connected with multiple lining papers.
- the non-combustion heating flavor inhalation system includes the non-combustion heating flavor inhaler according to this embodiment, and a heating device that heats the tobacco-containing segment of the non-combustion heating flavor inhaler.
- the non-combustion-heating flavor inhalation system according to the present embodiment may have a configuration other than the non-combustion-heating flavor inhaler and the heating device according to the present embodiment.
- the non-combustion heating flavor inhalation system shown in FIG. 3 includes a non-combustion heating flavor inhaler 4 according to this embodiment and a heating device 16 that heats the tobacco-containing segment of the non-combustion heating flavor inhaler 4 from the outside. Prepare.
- FIG. 3(a) shows the state before the non-combustion heating flavor inhaler 4 is inserted into the heating device 16, and FIG. indicates the state of
- the heating device 16 shown in FIG. 3 includes a body 17, a heater 18, a metal tube 19, a battery unit 20, and a control unit 21.
- the body 17 has a cylindrical recess 22, and a heater 18 and a metal pipe are provided on the inner side surface of the recess 22 at positions corresponding to the tobacco-containing segments of the non-combustion heating flavor inhaler 4 inserted into the recess 22. 19 are arranged.
- the heater 18 can be a heater based on electric resistance, and electric power is supplied from the battery unit 20 according to an instruction from the control unit 21 that performs temperature control, and the heater 18 is heated. The heat emitted from the heater 18 is transmitted to the tobacco-containing segment of the non-combustion heating flavor inhaler 4 through the metal pipe 19 with high thermal conductivity.
- FIG. 3(b) there is a gap between the outer circumference of the non-combustion-heating flavor inhaler 4 and the inner circumference of the metal tube 19 because it is schematically illustrated.
- the heating device 16 heats the tobacco-containing segment of the non-combustion-heating flavor inhaler 4 from the outside, but it may heat the tobacco-containing segment from the inside.
- the heating temperature of the heating device is not particularly limited, it is preferably 400°C or lower, more preferably 150°C or higher and 400°C or lower, and even more preferably 200°C or higher and 350°C or lower.
- the heating temperature indicates the temperature of the heater of the heating device.
- a sheet produced by the papermaking method is composed of fibrous tobacco leaf residue, and therefore has excellent strength, but does not have a sufficient level of surface smoothness.
- the sheet produced by the casting method is dried from a wet sheet in which water is abundant, air bubbles are generated on the surface due to the generation of steam during drying.
- the smoothness is not at a sufficient level due to the fact that the edge of the wet sheet becomes loose during the process of water evaporation and contraction of the wet sheet.
- lumps are formed due to entanglement of the material, which also impairs the smoothness of the sheet surface.
- tobacco sheets are subjected to processing such as molding and cutting, and then used for smoking articles. If the surface of the tobacco sheet is not sufficiently smooth during this processing, problems such as breakage of the sheet may occur when the sheet comes into contact with a processing device. Accordingly, a tobacco sheet having excellent processability in addition to high swelling properties will be described below as a first aspect.
- the tobacco sheet in this aspect includes at least tobacco material and a binder.
- Binder A binder is one of the molding agents described above, and is an adhesive for binding tobacco materials together or tobacco materials and other components.
- known binders can be used.
- examples of such binders include polysaccharides such as guar gum and xanthan gum, CMC (carboxymethyl cellulose), CMC-Na (carboxymethyl cellulose sodium salt), and cellulose derivatives such as HPC (hydroxypropyl cellulose).
- the upper limit of the content of the binder is preferably 6% by mass or less in dry mass (mass excluding mixed water, the same shall apply hereinafter) relative to the dry mass of the tobacco sheet, and the lower limit is preferably 1. It is at least 3% by mass, more preferably at least 3% by mass. If the amount of the binder exceeds the upper limit or is less than the lower limit, the above effects may not be sufficiently exhibited.
- Binders used in this embodiment include polysaccharides, proteins, and synthetic polymers. Specific examples of these are shown below. In this embodiment, these binders can also be used in combination.
- Naturally-derived polysaccharides [plant-derived] Guar Gum, Tara Gum, Roasted Bean Gum, Tamarind Seed Gum, Pectin, Arabic Gum, Tragacanth Gum, Karaya Gum, Gutti Gum, Arabinogalactan, Amaseed Gum, Cassia Gum, Psyllium Seed Gum, Mackerel Seed Gum [from Algae] Carrageenan, agar, alginic acid, propylene glycol alginate, furcelleran, fukuronori extract [derived from microorganisms] Xanthan gum, gellan gum, curdlan, pullulan, agrobacterium succinoglycan, welan gum, macrohomopsis gum, rhamzan gum [from crustaceans] Chitin, chitosan, glucosamine [starches] Starch, sodium starch glycolate, pregelatinized starch, dextrin
- the tobacco material used in this embodiment may be the tobacco raw material described above. In this embodiment, specifically, dried tobacco leaves cut into pieces, leaf tobacco pulverized products, or the like can be used.
- Leaf tobacco pulverized material is particles obtained by pulverizing leaf tobacco.
- the particle size D90 of pulverized leaf tobacco is preferably 200 ⁇ m or more as described above, but the upper limit thereof is preferably 1000 ⁇ m or less, more preferably 50 to 500 ⁇ m.
- the average particle diameter D50 can be preferably 20 to 1000 ⁇ m, more preferably 50 to 500 ⁇ m.
- Pulverization can be performed using a known pulverizer, and may be either dry pulverization or wet pulverization.
- Leaf tobacco pulverized products are therefore also referred to as leaf tobacco particles.
- the particle size is determined by a laser diffraction/scattering method, and specifically measured using a laser diffraction particle size distribution analyzer (eg, Horiba LA-950).
- a laser diffraction particle size distribution analyzer eg, Horiba LA-950.
- the type of tobacco is not limited, and yellow varieties, burley varieties, orient varieties, native varieties, and other Nicotiana tabacum varieties and Nicotiana rustica varieties can be used.
- the amount of tobacco material in the tobacco sheet is not particularly limited, it is preferably 50 to 95% by weight, more preferably 60 to 90% by weight on a dry weight basis.
- Aerosol-generating agent in this embodiment, known aerosol-generating agents can be used, and examples thereof include glycerin, polyhydric alcohols such as propylene glycol (PG), triethyl citrate (TEC), Those having a boiling point of over 100°C, such as triacetin, can be mentioned.
- the amount of the aerosol-generating agent in the tobacco sheet is preferably 5 to 40 mass %, more preferably 10 to 20 mass % in terms of dry mass (mass excluding mixed water; the same shall apply hereinafter). If the amount of the aerosol-generating agent exceeds the upper limit, it may become difficult to manufacture the tobacco sheet, and if it is less than the lower limit, the smoke sensitivity may decrease.
- the tobacco sheet may contain an emulsifier.
- Emulsifiers enhance the affinity between the aerosol-generating agent, which is lipophilic, and the tobacco material, which is hydrophilic. Therefore, addition of an emulsifier is effective especially when using a lipophilic aerosol-generating agent.
- Known emulsifiers can be used, and examples thereof include emulsifiers having an HLB value of 8-18.
- the amount of the emulsifier is not particularly limited, it is preferably 0.1 to 3 parts by weight, more preferably 1 to 2 parts by weight in terms of dry weight with respect to 100 parts by weight of the tobacco sheet.
- the tobacco sheet may contain a flavor.
- a flavoring agent is a substance that provides an odor or flavor.
- the perfume may be a natural perfume or a synthetic perfume. As the perfume, one kind of perfume may be used, or a mixture of multiple kinds of perfumes may be used. Any flavor commonly used in smoking articles can be used as the flavor, specific examples of which are described below.
- Flavoring agents can be included in the sheet for smoking articles in an amount such that the smoking article can provide the desired aroma and flavor, for example, the amount is preferably 1 to 30% by weight, more preferably 1 to 30% by weight in the tobacco sheet. is 2 to 20% by mass.
- the type of perfume is not particularly limited, and from the viewpoint of imparting a good perfume feeling, acetoanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise.
- Oil carob absolute, beta-carotene, carrot juice, L-carvone, beta-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, Citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, cognac oil, coriander oil, cumin aldehyde, davana oil, ⁇ -decalactone, ⁇ -decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1, 2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethyl Pyrazine, 2,6-dimethylpyrazine
- fragrances e.g. jasmine oil, lemon oil, vetiver oil, lobage oil
- esters e.g. menthyl acetate, isoamyl propionate, etc.
- alcohols e.g. phenylethyl alcohol, cis-6-nonene-1- all, etc.
- Characteristics and form of tobacco sheet 1 Arithmetic mean surface roughness Sa
- the surface between the two vertices that determine the wave period of the cross section is called an arc-shaped curved surface
- at least one of the two arc-shaped curved surfaces existing on the front surface and the back surface of the sheet is circular.
- the arcuate curved surface preferably has a Sa of 5-30 ⁇ m.
- FIG. 1(2) shows a tobacco sheet in this embodiment.
- the inner surface (surface on the lower side of the paper surface) and the outer surface (surface on the upper side of the paper surface) of the tobacco sheet in the region indicated by a in the figure are arc-shaped curved surfaces.
- FIG. 1(2) shows the case where the wavy shape of the cross section is arc-shaped. called a curved surface.
- Sa is an index of surface roughness, and when the arc-shaped curved surface of the tobacco sheet of the present embodiment has Sa within the above range, the workability is excellent, and moreover, chipping from the surface is reduced. The reason for this is presumed, but not limited, as follows.
- the corrugated shape is formed by processing a sheet having an arithmetic mean surface roughness Sa within the range described above.
- the sheet having the arithmetic mean surface roughness Sa within the above range comes into contact with the processing machine, but since the sheet is smooth, it is less damaged by contact and can suppress the generation of flakes such as powder. From this point of view, Sa is more preferably 10 to 25 ⁇ m, still more preferably 10 to 20 ⁇ m. In the tobacco sheet of this aspect, it is preferable that two arc-shaped curved surfaces have Sa within the above range.
- Sa is measured by a known method, preferred methods are listed below. Using a microscope (for example, VK-X100 manufactured by KEYENCE), the measurement is performed according to the following procedure.
- the thickness of the tobacco sheet is not limited, but in one aspect it is preferably 20 to 2000 ⁇ m, more preferably 100 to 1500 ⁇ m, and even more preferably 100 to 1000 ⁇ m.
- the tobacco sheet in this embodiment preferably has a tensile elongation of 2.0% or more, more preferably 3.0% or more, and still more preferably 5.0% or more. Although the upper limit of the tensile elongation is not limited, it is usually about 15% or less. Further, the tobacco sheet preferably has a tensile stress of 2.0 N/mm or more, more preferably 2.5 N/mm or more, and still more preferably 3.0 N/mm or more.
- the smoothness of the arc-shaped curved surface of the tobacco sheet in this embodiment affects the handleability of the product. For example, a smoking article using a tobacco sheet having an arc-shaped curved surface with poor smoothness may break when the sheet comes into contact with a processing device. In addition, during or after use, fine powder called so-called shavings may occur, which may cause problems in handling such as adhesion to clothes. However, since the arc-shaped curved surface of the tobacco sheet of this embodiment is excellent in smoothness, the occurrence of such problems can be suppressed.
- Tobacco segments for use in smoking articles can be produced from tobacco sheets.
- the tobacco segment comprises a tubular wrapper, and comprises a tobacco sheet spirally packed in the wrapper (see FIG. 4(A)).
- 200A is a tobacco segment
- T is a tobacco sheet
- 220 is a wrapper, usually paper.
- the tobacco segment is preferably rod-shaped and can have a length of 15-80 mm and a diameter of the order of 5-10 mm.
- the tobacco segment 200A shown in FIG. 4(A) can be cut to have an aspect ratio (length/diameter) of about 0.5 to 1.2 (see FIG. 4(B)).
- the tobacco segment 200A in another aspect, comprises a tubular wrapper 220, and comprises a tobacco sheet T folded and filled in the wrapper.
- the ridgeline produced by folding is substantially parallel to the longitudinal direction of the segment (see FIG. 4(C)).
- the tobacco segment 200A is preferably rod-shaped and can have a length of 15-80 mm and a diameter of about 5-10 mm.
- it is preferable that the tobacco sheet T is preliminarily subjected to surface wrinkling such as pleating or crimping.
- the tobacco segment 200A comprises a tubular wrapper 220, and comprises cut pieces of the tobacco sheet T filled in the wrapper (see FIG. 4(D)).
- the tobacco segment 200A is preferably rod-shaped and can have a length of 15-80 mm and a diameter of about 5-10 mm.
- the size of the cut piece is not limited, 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 200A comprises a cylindrical wrapper 220, and comprises strand-type cuts filled in the wrapper (see FIG. 4(E)).
- the strand type cuts are filled so that the longitudinal direction thereof is substantially parallel to the longitudinal direction of the wrapper 220 .
- the width of the strand type cut can be about 0.5 to 1.5 mm.
- the tobacco segment 200A in another embodiment, comprises a tubular wrapper 220, and comprises cut tobacco filling randomly filled in the wrapper. Tobacco cuts are cut and different from strand-type cuts.
- the tobacco sheet before being corrugated in this embodiment can be manufactured by any method, but is preferably manufactured by a method comprising the following steps. Step 1 of kneading at least a tobacco material, a binder and a medium to prepare a mixture. Step 2 of pressing the mixture or extruding it through a die to prepare a wet sheet. Step 3 of drying the wet sheet.
- a sheet formed by applying pressure in this way is called a "pressure-formed sheet", and as described later, the "pressure-formed sheet” includes a "laminate sheet” and an "extruded sheet".
- a laminate sheet is a sheet obtained by rolling out a mixture to a target thickness with a roller one or more times and then drying to a target moisture content.
- An extruded sheet is a sheet obtained by extruding a mixture from a T-die or the like to a target thickness and then drying to a target moisture content. Flattening and extrusion may be combined in pressure formed sheets. For example, the mixture may be extruded and then further rolled into a sheet.
- Process 1 the tobacco material, binder, and medium are kneaded. Aerosol-forming bases, emulsifiers, or fragrances can also be added, if desired. The blending amount of each component is adjusted so as to achieve the aforementioned amounts.
- the medium preferably contains water or a water-soluble organic solvent such as ethanol having a boiling point of less than 100° C. as a main component, and more preferably water or ethanol.
- This step can be carried out by kneading each component, but is preferably carried out through 1) pulverization of raw material (for example, single leaf), 2) preparation of wet flour, and 3) kneading.
- 1) Pulverization It is preferable to coarsely crush the raw material and then finely pulverize it using a pulverizer (eg, ACM-5 manufactured by Hosokawa Micron).
- the particle size D90 after milling is preferably between 20 and 1000 ⁇ m. The particle size is measured using a laser diffraction particle size meter such as Mastersizer (manufactured by Malvern).
- a binder and, if necessary, additives such as flavor and lipid are added and mixed. Since this mixing is preferably a dry blend, it is preferred to use a mixer as a mixer.
- a medium such as water and, if necessary, an aerosol-generating base material such as glycerin are added to the dry blend and mixed in a mixer to prepare a wet powder (powder in a wet state).
- the amount of the medium in the wet powder can be 20-80% by weight, preferably 20-40% by weight, and is adjusted according to step 2. For example, the amount of the medium can be 20 to 50% by weight when compression is performed in step 2, and 20 to 80% by weight when extrusion is performed.
- the wet powder preferably has a solid content concentration of 50 to 90% by mass.
- Kneading The wet powder is kneaded using a kneader (eg, DG-1 manufactured by Dalton).
- the kneading is preferably carried out until the medium spreads over the whole.
- kneading is preferably carried out until the color of the mixture becomes uniform visually.
- the mixture (wet powder) is compressed or extruded through a die to prepare a wet sheet.
- a wet sheet For example, while sandwiching the mixture between two base films, it is passed between a pair of rollers until it reaches a predetermined thickness (more than 100 ⁇ m) using a calendering device (manufactured by Yuri Roll Machinery Co., Ltd.), and pressed. It can be spread out to give a laminate with a wet sheet between the two substrate films.
- a non-adhesive film such as a fluoropolymer film is preferable as the base film.
- Roller compression can be performed multiple times.
- the mixture (wet powder) can be extruded through a die (preferably a T-die) provided with a predetermined gap to form a wet sheet on the substrate.
- a die preferably a T-die
- the base material known ones such as a glass plate, a metal plate, and a plastic plate can be used.
- a known extruder can be used for extrusion.
- Process 3 the wet sheet is dried.
- this step can be carried out according to the following procedure. 1) Peel off one base film. 2) Dry the laminate using a forced air dryer. The drying temperature may be room temperature, preferably 50 to 100° C., and the drying time may be 1 to 2 minutes. 3) Next, the remaining base film is peeled off and dried under the above conditions to obtain a tobacco sheet. Drying in this way can prevent the tobacco sheet from adhering to other substrates.
- the tobacco sheet thus obtained is also called a "laminate sheet".
- the laminate sheet is preferable because it has a smooth surface and can suppress the occurrence of chipping when it comes into contact with other members. Also, the method is suitable for producing sheets of 300 ⁇ m or less.
- the wet sheet on the substrate is air-dried or heated to dry. Drying conditions are as described above.
- the tobacco sheet thus obtained is also called an "extruded sheet".
- the extruded sheet is preferable because it has a smooth surface and can suppress the occurrence of chipping when it comes into contact with other members.
- the method is suitable for producing sheets of 200 ⁇ m and above.
- the tobacco sheet in this aspect contains a tobacco material and a cellulose derivative having a degree of substitution of 0.65 or more as a binder.
- Binder In this aspect, a cellulose derivative having a degree of substitution of 0.65 or more, which is a binder, is used as the molding agent.
- a cellulose derivative is a cellulose in which the —OH group of the gluconopyranose residue is modified. Those in which the —OH group is modified to an —OR group (R is an organic group) are called cellulose ethers, and those in which an —OX group (X is a group derived from an acid) are called cellulose esters. Both can be used in the present invention.
- the degree of substitution is the number of substituents per gluconopyranose residue, that is, the number of modified 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 known methods.
- the degree of substitution is measured by the nitric acid-methanol method.
- the method is as follows: 1) About 2.0 g of a sample is accurately weighed and placed in a 300 ml stoppered Erlenmeyer flask. Add 100 ml of methanol nitrate (1 g of anhydrous methanol to 100 ml of special grade concentrated nitric acid) and shake for about 2 hours to convert terminal acid groups from salt form to hydrogen form (for example, from COONa to COOH). 2) The sample is filtered through a glass filter 1G3, washed with 200 ml of 80% methanol, and dried at 105° C. for 2 hours.
- R is a C1-C3 linear or branched alkyl group such as a methyl group, an ethyl group, a propyl group; Hydroxyalkyl group; C7-C20 arylalkyl group 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 is mentioned. Among them, R is preferably a carboxyalkyl group, more preferably a carboxymethyl group.
- the degree of substitution in cellulose ethers is also called 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 nitric acid, sulfuric acid and phosphoric acid; groups derived from xatogenic acid.
- the degree of substitution in cellulose esters is also called the degree of esterification.
- the cellulose derivative is highly hydrophilic, its affinity with tobacco materials is improved when it is used as a binder. As a result, the strength of the tobacco sheet is improved, and it becomes difficult for the tobacco sheet to crack during use.
- the cellulose derivative is soluble in organic solvents, especially ethanol. Therefore, as will be described later, when a mixture containing ethanol as a medium is used in the manufacture of tobacco sheets, the viscosity of the mixture can be lowered, which is more advantageous than a mixture containing water as a medium in transportation and coating processes in manufacturing. is. In addition, since ethanol evaporates more easily than water, it is possible to shorten the production time and reduce the energy cost during 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 mass in terms of dry mass (mass excluding mixed water, hereinafter the same) relative to the dry mass of the tobacco sheet. , more preferably 1 to 5% by mass, and further 2 to 4% by mass. If the amount of the binder exceeds the upper limit or is less than the lower limit, the above effects may not be sufficiently exhibited.
- cellulose derivatives are shown below.
- Cellulose ethers methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxymethylethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, benzylcellulose, tritylcellulose, cyanoethylcellulose, carboxymethylcellulose, carboxyethylcellulose, aminoethylcellulose
- Cellulose esters cellulose acetate, cellulose formate, Organic acid esters such as cellulose propionate, cellulose butyrate, cellulose benzoate, cellulose phthalate, tosylcellulose cellulose nitrate; inorganic acid esters such as cellulose sulfate, cellulose phosphate, and cellulose xanthate
- the tobacco sheet may contain the aerosol-generating agent described in the first aspect.
- the tobacco sheet may contain the emulsifier described in the first aspect.
- the tobacco sheet may contain cellulose other than tobacco.
- Cellulose other than tobacco includes, for example, the aforementioned cellulose fibers and cellulose powder, and does not include cellulose derivatives as binders.
- the tobacco sheet may contain the flavor described in the first aspect.
- the thickness w3 of the tobacco sheet in this aspect is not limited, but in one aspect it is preferably 20 to 2000 ⁇ m, more preferably 100 to 1500 ⁇ m, still more preferably 100 to 1000 ⁇ m. be.
- the tobacco sheet in this embodiment preferably has a tensile stress of 1.7 N/mm or more, more preferably 2 N/mm or more, still more preferably 3 N/mm or more.
- the arc-shaped curved surface of the tobacco sheet in this aspect 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 in this embodiment has Sa within the above range, the amount of chipping from the surface is reduced. From this point of view, the upper limit of Sa is more preferably 0.02 mm or less.
- Tobacco segments for use in smoking articles can be produced from tobacco sheets.
- the tobacco segment in this aspect is as described in the first aspect.
- the tobacco sheet before being corrugated in this embodiment can be manufactured by any method, but is preferably manufactured by a method comprising the following steps. Step 1 of preparing a mixture comprising at least a tobacco material, the cellulose derivative and a medium; Step 2 of spreading the mixture on a substrate to prepare a wet sheet, and Step 3 of drying the wet sheet.
- Process 1 This step mixes tobacco material, a cellulose derivative as a binder, and a medium. Aerosol-forming bases, emulsifiers, or fragrances can also be added, if desired. The blending amount of each component is adjusted so as to achieve the aforementioned amounts.
- the medium preferably contains water or a water-soluble organic solvent such as ethanol having a boiling point of less than 100° C. as a main component, and more preferably water or ethanol.
- the mixing method is not limited, and known equipment such as mixers and kneaders can be used.
- the solid content concentration of the mixture obtained by mixing is not limited, and is appropriately adjusted so as to be suitable for step 2.
- the upper limit of the solid content concentration is preferably 98% by mass or less, 90% by mass or less, or 80% by mass or less, and the lower limit is preferably 10% by mass or more, 20% by mass or more, or 30% by mass or more. , 40% by mass or more, or 50% by mass or more.
- the mixture is spread on a substrate to prepare a wet sheet.
- the substrate is not limited, and includes inorganic material substrates such as glass plates, metal substrates such as aluminum plates, organic material substrates such as PET films and fluoropolymer films, and fiber material substrates such as nonwoven fabrics.
- the method of spreading the mixture on the base material is not limited, but as described later, a rolling method of rolling using rollers, an extrusion method of extruding from a die, and a casting method of casting can be mentioned.
- the wet sheet is dried. Drying can be carried out according to known methods.
- 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.degree.
- the dried sheet is separated from the substrate to obtain the tobacco sheet.
- a binder for example, tobacco particles
- a fibrous material for example, a fibrous material
- additives such as flavor and lipid
- this mixing is preferably a dry blend, it is preferred to use a mixer as a mixer.
- a medium such as water and, if necessary, an aerosol-generating base material such as glycerin are added to the dry blend and mixed in a mixer to prepare a wet powder (powder in a wet state).
- the amount of the medium in the wet powder can be 20 to 80% by mass, preferably 20 to 40% by mass.
- the wet powder preferably has a solid content concentration of 50 to 90% by mass.
- the wet powder is kneaded using a uniaxial or multiaxial kneader such as a kneader (DG-1 manufactured by Dalton Co., etc.).
- a kneader DG-1 manufactured by Dalton Co., etc.
- the kneading is preferably carried out until the medium spreads over the whole.
- kneading is preferably carried out until the color of the mixture becomes uniform visually.
- Process 2 While sandwiching the mixture after kneading between two base films, it is passed between a pair of rollers until it reaches a predetermined thickness (more than 100 ⁇ m) using a calender device (manufactured by Yuri Roll Machinery Co., Ltd.). , to obtain a laminate with a wet sheet between the two substrate films. Roller compression can be performed multiple times.
- the base film is preferably a non-adhesive film such as a fluoropolymer film, specifically a Teflon (registered trademark) film.
- Process 3 One of the base films in the laminate is peeled off.
- the laminate is dried using an air dryer.
- the drying temperature is preferably 50-100° C. and the drying time can be 1-2 minutes.
- the remaining base film is peeled off and dried under the above conditions to obtain a tobacco sheet. Drying in this way can prevent the tobacco sheet from adhering to other substrates.
- the tobacco sheet obtained by this method is also called "laminate sheet".
- the laminate sheet is preferable because it has a smooth surface and can suppress the occurrence of chipping when it comes into contact with other members. Also, the method is suitable for producing sheets of 300 ⁇ m or less.
- Step 1 in this method is as described in the rolling method.
- Prepare wet flour (wet flour).
- the amount of the medium in the wet powder can be selected in the range of 20-80% by mass, preferably 20-40% by mass.
- Process 2 In this step, the wet powder is extruded through a die provided with a predetermined gap to form a wet sheet on the 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 for the rolling method.
- the tobacco sheet obtained by this method is also called an "extruded sheet".
- the extruded sheet is preferable because it has a smooth surface and can suppress the occurrence of chipping when it comes into contact with other members.
- the method is suitable for producing sheets of 200 ⁇ m and above.
- a sheet molded under pressure in this way is called a "pressure-molded sheet”, and "pressure-molded sheet” includes “laminate sheet” and "extruded sheet”.
- a laminate sheet is a sheet obtained by rolling out a mixture to a target thickness with a roller one or more times and then drying to a target moisture content.
- An extruded sheet is a sheet obtained by extruding a mixture from a T-die or the like to a target thickness and then drying to a target moisture content. Flattening and extrusion may be combined in pressure formed sheets. For example, the mixture may be extruded and then further rolled into a sheet.
- Process 1 Step 1 in the method can be performed in any manner.
- a mixture can be prepared by mixing a tobacco raw material having a desired particle size, a cellulose derivative, a medium, and, if necessary, additives 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 mass, the mixture is also called slurry.
- Process 2 In this step, the slurry is cast on the substrate to form a wet sheet. Casting can be carried out as known.
- Process 3 the wet sheet is dried to obtain a tobacco sheet.
- the drying conditions are as described for the rolling method.
- the tobacco sheet obtained by this method is also called "cast sheet".
- Tobacco lamina (leaf tobacco) was dry pulverized with a Hosokawa Micron ACM machine to obtain tobacco powder.
- the cumulative 90% particle diameter (D90) in the volume-based particle size distribution measured by the dry laser diffraction method is measured using a Mastersizer (trade name, manufactured by Spectris Co., Ltd., Malvern Panalytical Division). As a result, it was 200 ⁇ m.
- a tobacco sheet was manufactured using the tobacco powder as a tobacco raw material. Specifically, 70 parts by mass of the tobacco raw material, 12 parts by mass of glycerin as an aerosol generating agent, 4 parts by mass of powdered carboxymethyl cellulose as a first molding agent, and water as a second molding agent. 1 part by mass of swollen carboxymethylcellulose, 5 parts by mass of fibrous pulp as a reinforcing agent, and 8 parts by mass of cocoa powder as a flavoring agent were mixed and kneaded in an extruder. The kneaded product was formed into a sheet by two pairs of metal rolls to obtain a rolled product.
- a rotary roll blade for noodle making was pressed against the rolled product, and the product was cut into strips and given a corrugated shape. Further, it was cut into 20 mm lengths and dried to obtain tobacco sheets with a length of 20 mm and a width of 0.8 mm.
- the thickness direction cross-section of the tobacco sheet had a cross-sectional shape as shown in FIG.
- the swelling property of the obtained tobacco sheet was measured. Specifically, after leaving the tobacco sheet in a conditioned room at 22° C. and 60% for 48 hours, the swelling property was measured with DD-60A (trade name, manufactured by Borgwald). The measurement was carried out by placing 15 g of tobacco sheet in a cylindrical container with an inner diameter of 60 mm and compressing the container with a load of 3 kg for 30 seconds to obtain the volume. Table 1 shows the results. In addition, in Table 1, the swelling property is shown as an increase rate (%) of the swelling property with respect to the reference value of the swelling property value of Comparative Example 1 described later.
- Example 1 A roll-formed product was produced in the same manner as in Example 1. After that, it was cut into strips with a plurality of ring-shaped rotary blades. Further, the tobacco sheet was cut to a length of 20 mm to obtain a tobacco sheet having a length of 20 mm and a width of 0.8 mm. The swelling property of the obtained tobacco sheet was measured in the same manner as in Example 1. Table 1 shows the results.
- the tobacco sheet of Example 1 which is the tobacco sheet according to the present embodiment, has improved swelling properties compared to the tobacco sheet of Comparative Example 1, which is not provided with a corrugated shape.
- a kneader (DG-1, manufactured by Dalton), the wet powder was kneaded six times at room temperature to obtain a mixture.
- a T-die was used as the 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. Next, another film was peeled off, the wet sheet was dried under the same conditions, and the tobacco sheet of the present invention was produced and evaluated.
- the crushed tobacco leaf, glycerin, and binder show the dry matter amount
- the water is the total amount of the charged weight and the water content contained in the crushed tobacco leaf, glycerin, and binder. show.
- a tobacco sheet was produced by a papermaking method according to a standard method. Specifically, the water-soluble component of the tobacco raw material is extracted with water, the extraction residue, pulp and water are mixed, beaten using a grinder, formed into a sheet with a paper machine, the sheet is dried, The extract and glycerin were added to the sheet.
- the tobacco sheet was evaluated in the same manner as in Reference Example A1. The composition of the sheet is shown in Table A2. Table A3 shows the evaluation results of the tobacco sheets produced in the above examples.
- 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 Mastersizer (manufactured by Malvern).
- Leaf tobacco particles and carboxymethyl cellulose (Sunrose FF30MC manufactured by Nippon Paper Industries Co., Ltd.) as a binder were dry-blended using a mixer. Then, glycerin as an aerosol-generating base and water as a medium were added to the dry blend and mixed in a mixer to prepare a wet powder.
- the composition of each component is as follows.
- the crushed tobacco leaf material, glycerin, and binder indicate the amount of dry matter
- water indicates the total amount of the charged mass and the weight of water contained in the crushed tobacco leaf material, glycerin, and binder.
- the wet powder was kneaded six times at room temperature to obtain a mixture.
- the shape of the die 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. Next, another film was peeled off, and the wet sheet was dried under the same conditions to produce a tobacco sheet according to this embodiment.
- a tobacco sheet for a non-combustion heating type flavor inhaler containing a tobacco raw material, the tobacco sheet for a non-combustion heating type flavor inhaler having a corrugated cross-section in the thickness direction of the tobacco sheet.
- the tobacco sheet for a non-combustion heating type flavor inhaler according to [1] wherein the tobacco sheet further contains an aerosol generating agent.
- the aerosol generating agent is at least one selected from the group consisting of glycerin, propylene glycol and 1,3-butanediol.
- the first molding agent is at least one selected from the group consisting of polysaccharides, proteins and synthetic polymers.
- the second molding agent is at least one selected from the group consisting of polysaccharides, proteins and synthetic polymers, which is different from the first molding agent.
- non-combustion heated flavor inhaler tobacco sheet [8] The non-combustion heating type flavor inhalation according to any one of [5] to [7], wherein the ratio of the first molding agent contained in 100% by mass of the tobacco sheet is 0.1 to 15% by mass. Dexterous cigarette sheet. [9] The non-combustion heating type flavor inhalation according to any one of [5] to [8], wherein the ratio of the second molding agent contained in 100% by mass of the tobacco sheet is 0.1 to 15% by mass. Dexterous cigarette sheet.
- a non-combustion heating flavor inhaler comprising a tobacco-containing segment including the tobacco sheet for a non-combustion heating flavor inhaler according to any one of [1] to [9].
- a method for manufacturing a tobacco sheet for a non-combustion heating type flavor inhaler according to any one of [1] to [9], preparing a mixture comprising a tobacco material, an aerosol-generating agent, a first shaping agent, and a second shaping agent; rolling the mixture to form a rolled article; A step of pressing a rotary roll blade against the rolled product to cut it into strips while imparting a corrugated shape; method including.
- [1A] A tobacco sheet comprising a tobacco material and a binder, wherein at least one surface has an arithmetic mean surface roughness Sa of 5 to 30 ⁇ m.
- [2A] The sheet of [1A], which is a pressure-molded sheet.
- [3A] The sheet according to [1A] or [2A], wherein the binder content is 6% by mass or less in terms of dry mass relative to the dry mass of the tobacco sheet.
- [4A] The tobacco sheet according to [1A], wherein both surfaces have an arithmetic mean surface roughness Sa of 5 to 30 ⁇ m.
- [5A] The sheet according to any one of [1A] to [4A], having a tensile elongation of 5 to 15%.
- [6A] A non-combustion heating smoking article comprising the tobacco sheet according to any one of [1A] to [5A] or a material derived therefrom.
- [9A] The production method of [7A] or [8A], wherein the step 1 includes kneading at least the tobacco material, the binder and the medium with a single-screw or multi-screw kneader.
- [10A] The production method according to any one of [7A] to [9A], wherein the mixture contains 20 to 80% by mass of the medium relative to the total amount of the mixture.
- step 1 includes kneading the tobacco material, the cellulose derivative, and the medium with a single-screw or multi-screw kneader.
- step 2 includes rolling the mixture with a roller or extruding it through a die.
- step 2 includes preparing a laminate sheet in which a wet sheet is present between two base films.
- step 2 includes preparing a laminate sheet in which a wet sheet is present between two base films.
- step 2 includes preparing a laminate sheet in which a wet sheet is present between two base films.
- step 2 includes preparing a laminate sheet in which a wet sheet is present between two base films.
- step 2 includes preparing a laminate sheet in which a wet sheet is present between two base films.
- a non-combustion heating smoking article comprising the tobacco sheet according to any one of [1B] to [6B] or a material derived therefrom.
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Abstract
Description
態様1
たばこ原料を含む非燃焼加熱型香味吸引器用たばこシートであって、前記たばこシートの厚み方向の断面が波型形状を有する、非燃焼加熱型香味吸引器用たばこシート。
態様2
前記シートの、表面に存在する円弧状曲面および裏面に存在する円弧状曲面のうち少なくとも一方の円弧状曲面が、5~30μmの面算術平均表面粗さSaを有する、態様1に記載のシート。
態様3
圧力成形シートである、態様1または2に記載のシート。
態様4
置換度が0.65以上であるセルロース誘導体を含む、態様1~3のいずれか一項に記載のシート。
態様5
前記置換度が0.7以上である、態様4に記載のシート。
態様6
態様1~5のいずれか一項に記載の非燃焼加熱型香味吸引器用たばこシートを含むたばこ含有セグメント、
を備える非燃焼加熱型香味吸引器。
態様7
態様6に記載の非燃焼加熱型香味吸引器と、
前記たばこ含有セグメントを加熱する加熱装置と、
を備える非燃焼加熱型香味吸引システム。
態様8
態様1~5のいずれか一項に記載のたばこシートの製造方法であって、
たばこ原料、エアロゾル発生剤、第一の成型剤、及び第二の成型剤を含む混合物を調製する工程と、
前記混合物を圧延して圧延成形品を形成する工程と、
前記圧延成形品に回転式ロール刃を押し当てて短冊状に切断しつつ波型形状を付与する工程と、
を含む方法。
本実施形態に係る非燃焼加熱型香味吸引器用たばこシート(以下、「たばこシート」ともいう。)は、たばこ原料を含み、前記たばこシートの厚み方向の断面は波型形状を有する。本実施形態に係るたばこシートは厚み方向の断面形状が波型であるため、嵩高く、高い膨嵩性を有する。そのため、本実施形態に係るたばこシートを用いることでたばこ含有セグメントの総熱容量を低減することができ、たばこ含有セグメントに充填されたたばこシートをエアロゾル生成に十分に寄与させることができる。また、本実施形態に係るたばこシートはエアロゾル発生剤や一種又は二種以上の成型剤をさらに含むことが好ましく、これらの配合割合を所定の範囲内とすることで、たばこシートの膨嵩性がより向上する。
本実施形態に係るたばこシートは、厚み方向の断面が波型形状を有する。すなわち、本実施形態に係るたばこシートを平面方向のある一方向において厚み方向に切断した場合、その断面の形状が波型の形状を有する。前記平面方向のある一方向は、例えばたばこシートの長手方向であってもよく、短手方向であってもよい。ここで「波型」とは、上下にうねった形状であれば特に限定されず、波の山は直線的な形状であってもよく、曲線的な形状であってもよい。また、波は規則的であってもよく、不規則的であってもよい。
本実施形態に係るたばこシートに含まれるたばこ原料としては、たばこ成分が含まれるものであれば特に限定されないが、例えばたばこ粉末やたばこ抽出物が挙げられる。たばこ粉末としては、例えば葉たばこ、中骨、残幹等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。これらを所定の大きさに裁刻することで、たばこ粉末として使用することができる。たばこ粉末の大きさとしては、乾式レーザー回折法により測定される体積基準の粒度分布における累積90%粒子径(D90)が200μm以上であることが、更なる膨嵩性向上の観点から好ましい。たばこ原料がたばこ粉末である場合、たばこシート100質量%に含まれるたばこ粉末の割合は、45~95質量%であることが好ましく、50~93質量%であることがより好ましく、60~85質量%であることがさらに好ましい。たばこ抽出物としては、例えば葉たばこを粗砕し、これを水等の溶媒と混合・攪拌することで葉たばこから水溶性成分を抽出し、得られた水抽出物を減圧乾燥して濃縮することで得られるたばこ抽出物が挙げられる。
本実施形態に係るたばこシートは、加熱時の煙量増加の観点から、さらにエアロゾル発生剤を含むことが好ましい。エアロゾル発生剤としては、例えばグリセリン、プロピレングリコール、1,3-ブタンジオール等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。
本実施形態に係るたばこシートは、形状担保の観点から、さらに成型剤を含むことが好ましい。本実施形態に係るたばこシートは、特に、たばこシートのエアロゾル発生剤の保持性能と波型形状の維持性能とを十分に両立させることができる観点から、第一の成型剤及び第二の成型剤をさらに含むことが好ましい。ここで、第一の成型剤と第二の成型剤とは成型剤の種類が異なっていてもよく、成型剤の種類は同一で形態が異なっていてもよい。第一の成型剤としては、例えば多糖類、タンパク、合成ポリマー等が挙げられる。多糖類としては、例えばセルロース誘導体、天然由来の多糖類が挙げられる。
本実施形態に係るたばこシートは、更なる物性向上の観点から、さらに補強剤を含むことができる。補強剤としては、例えばファイバー状パルプ、ファイバー状合成セルロース等の繊維状物質、ペクチン懸濁水など乾燥すると膜を形成する表面コーティング機能をもった液状物質等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。
本実施形態に係るたばこシートは、品質保持の観点から、さらに保湿剤を含むことができる。保湿剤としては、例えばソルビトール、エリスリトール、キシリトール、マルチトール、ラクチトール、マンニトール、還元麦芽糖水飴等の糖アルコール等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。
本実施形態に係るたばこシートは、前記たばこ原料、前記エアロゾル発生剤、前記成型剤(第一及び第二の成型剤)、前記補強剤、前記保湿剤以外にも、必要に応じて香料、呈味料等の香味料、着色剤、湿潤剤、保存料、無機物質等の希釈剤等を含むことができる。
本実施形態に係るたばこシートの膨嵩性は、190cc/100g以上であることが好ましい。該膨嵩性が190cc/100g以上であることにより、非燃焼加熱型香味吸引器のたばこ含有セグメントの総熱容量を十分に低減することができ、たばこ含有セグメントに充填されたたばこシートがエアロゾル生成により寄与できるようになる。該膨嵩性は210cc/100g以上であることがより好ましく、230cc/100g以上であることがさらに好ましい。該膨嵩性の範囲の上限は特に限定されないが、例えば800cc/100g以下であることができる。なお、該膨嵩性は、たばこシートを0.8mm×20mmのサイズに裁刻し、22℃、60%の調和室内で48時間存置した後、DD-60A(商品名、ボルグワルド社製)にて測定される値である。測定は、裁刻されたたばこシート15gを内径60mmの円筒形容器に入れ、3kg荷重で30秒圧縮した時の容積を求めることで行われる。
本実施形態に係るたばこシートは、例えばたばこ原料、エアロゾル発生剤、第一の成型剤、及び第二の成型剤を含む混合物を調製する工程と、前記混合物を圧延して圧延成形品を形成する工程と、前記圧延成形品に回転式ロール刃を押し当てて短冊状に切断しつつ波型形状を付与する工程と、を含むことができる。なお、波型形状を付与する処理をリップリング処理ともいう。例えば、以下の方法により本実施形態に係るたばこシートを製造することができる。
(2)当該混合物を複数の圧延ローラーに投入して圧延し、圧延成形品を得る工程。
(3)圧延成形品に対して回転式ロール刃を押し当て、短冊状に切断しつつ波型形状を付与する工程。
本実施形態に係る非燃焼加熱型香味吸引器は、本実施形態に係るたばこシート等を含むたばこ含有セグメントを備える。本実施形態に係る非燃焼加熱型香味吸引器は、本実施形態に係る膨嵩性の高いたばこシート等が充填されたたばこ含有セグメントを備えるため、たばこ含有セグメントの総熱容量を十分に低減することができ、たばこ含有セグメントに充填されたたばこシートがエアロゾル生成により寄与できるようになる。
たばこ含有セグメント5は、本実施形態に係るたばこシートが巻紙(以下、ラッパーともいう)内に充填されている。たばこシートを巻紙内に充填する方法は特に限定されないが、例えばたばこシートをラッパーで包んでもよく、筒状のラッパー内にたばこシートを充填してもよい。たばこシートの形状が矩形状のように長手方向を有する場合、たばこシートは該長手方向がラッパー内でそれぞれ不特定の方向となるように充填されていてもよく、たばこ含有セグメント5の軸方向又は該軸方向に対して垂直な方向となるように整列させて充填されていてもよい。
図2に示されるように、冷却セグメント6は筒状部材10で構成される態様を挙げることができる。筒状部材10は例えば厚紙を円筒状に加工した紙管であってもよい。
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充填層と、該充填層を覆うインナープラグラッパー(内側巻紙)とで構成される。例えば、図2に示されるように、センターホールセグメント7は、中空部を有する第二の充填層12と、第二の充填層12を覆う第二のインナープラグラッパー13とで構成される。センターホールセグメント7は、マウスピースセグメント9の強度を高める機能を有する。第二の充填層12は、例えば酢酸セルロース繊維が高密度で充填されトリアセチンを含む可塑剤が酢酸セルロース質量に対して、6質量%以上、20質量%以下添加されて硬化された内径φ1.0mm以上、φ5.0mm以下のロッドとすることができる。第二の充填層12は繊維の充填密度が高いため、吸引時は、空気やエアロゾルは中空部のみを流れることになり、第二の充填層12内はほとんど流れない。センターホールセグメント7内部の第二の充填層12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少ない。なお、センターホールセグメント7が第二のインナープラグラッパー13を持たず、熱成型によってその形が保たれていてもよい。
フィルターセグメント8の構成は特に限定されないが、単数または複数の充填層から構成されてよい。充填層の外側は一枚または複数枚の巻紙で巻装されてよい。フィルターセグメント8のセグメント当たりの通気抵抗は、フィルターセグメント8に充填される充填物の量、材料等により適宜変更することができる。例えば、充填物が酢酸セルロース繊維である場合、フィルターセグメント8に充填される酢酸セルロース繊維の量を増加させれば、通気抵抗を増加させることができる。充填物が酢酸セルロース繊維である場合、酢酸セルロース繊維の充填密度は0.13~0.18g/cm3であることができる。なお、通気抵抗は通気抵抗測定器(商品名:SODIMAX、SODIM製)により測定される値である。
本実施形態に係る非燃焼加熱型香味吸引システムは、本実施形態に係る非燃焼加熱型香味吸引器と、該非燃焼加熱型香味吸引器のたばこ含有セグメントを加熱する加熱装置と、を備える。本実施形態に係る非燃焼加熱型香味吸引システムは、本実施形態に係る非燃焼加熱型香味吸引器及び前記加熱装置以外に、他の構成を有していてもよい。
本態様におけるたばこシートとは少なくともたばこ材料と、バインダーとを含む。
バインダーは前述の成型剤の一種であり、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。本態様においては、公知のバインダーを使用できる。かかるバインダーとしては、例えば、グアーガム、キサンタンガム等の多糖類、CMC(カルボキシメチルセルロース)、CMC-Na(カルボキシメチルセルロースのナトリウム塩)、HPC(ヒドロキシプロピルセルロース)等のセルロース誘導体を挙げることができる。バインダーの含有量の上限は、たばこシートの乾燥質量に対して、乾燥質量(混入している水を除いた質量、以下同様)で、好ましくは6質量%以下、であり、下限は好ましくは1質量%以上、より好ましくは3質量%以上である。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。
1-1)セルロース誘導体
[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]
有機酸エステル: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
無機酸エステル:硝酸セルロース、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
[植物由来]
グアーガム、タラガム、ローストビーンガム、タマリンド種子ガム、ペクチン、アラビアガム、トラガントガム、カラヤガム、ガッティガム、アラビノガラクタン、アマシードガム、カッシャガム、サイリウムシードガム、サバクヨモギシードガム
[藻類由来]
カラギーナン、寒天、アルギン酸、アルギン酸プロピレングリコールエステル、ファーセレラン、フクロノリ抽出物
[微生物由来]
キサンタンガム、ジェランガム、カードラン、プルラン、アグロバクテリウムスクシノグリカン、ウェランガム、マクロホモプシスガム、ラムザンガム
[甲殻類由来]
キチン、キトサン、グルコサミン
[デンプン類]
デンプン、デンプングリコール酸ナトリウム、α化デンプン、デキストリン
小麦グルテン、ライ麦グルテン
ポリリン酸、ポリアクリル酸ナトリウム、ポリビニルピロリドン
本態様で用いるたばこ材料は、前述のたばこ原料であってよい。本態様においては、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を用いることができる。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。葉たばこ粉砕物の粒径D90は前述のとおり200μm以上であることが好ましいが、その上限は好ましくは1000μm以下、より好ましくは50~500μmとすることができる。またその平均粒径D50を好ましくは20~1000μm、より好ましくは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。本態様において粒径は、レーザー回折・散乱法により求められ、具体的にはレーザー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・ルスチカ系に属する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、乾燥質量で、好ましくは50~95質量%、より好ましくは60~90質量%である。
本態様においても、エアロゾル発生剤として、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。本態様においてたばこシートにおけるエアロゾル発生剤の量は、乾燥質量(混入している水を除いた質量、以下同様)で、好ましくは5~40質量%、より好ましくは10~20質量%である。エアロゾル発生剤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。
本態様において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発生剤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発生剤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質量部に対して、乾燥質量で、好ましくは0.1~3質量部、より好ましくは1~2質量部である。
本態様において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質量%、より好ましくは2~20質量%である。
1)算術平均表面粗さSa
本態様におけるたばこシートにおいて、断面の波の周期を決定する2つの頂点の間の面を、円弧状曲面と称するとき、シートの表面および裏面に存在する2つの円弧状曲面のうち少なくとも1つの円弧状曲面は5~30μmのSaを有することが好ましい。図1(2)は本態様におけるたばこシートを示す。当該図においてaで表された領域におけるたばこシートの内面(紙面下側の面)および外面(紙面上側の面)が円弧状曲面である。そして本態様においては、aで表される領域が複数存在するので、aで表される各領域のSaを測定しこれらを平均した値を前記シートの円弧状曲面のSaとする。図1(2)には断面の波型形状が円弧状である場合を示すが、断面の波型形状三角形状である場合も、波の周期を決定する2つの頂点の間の面を円弧状曲面という。Saは表面粗度の指標であり、本態様のたばこシートの円弧状曲面が前記範囲のSaを有すると、加工性に優れ、さらには表面からの刻こぼれが低減する。この理由は、限定されないが次のように推察される。波型形状は、前述の範囲の算術平均表面粗さSaを有するシートを加工して形成されるが、当該シートは平滑であるため、加工時の変形によってシート表面に応力集中が起きにくく、加工によるクラック(ひびや割れ)の発生を抑制できる。また当該加工時に、前述の範囲の算術平均表面粗さSaを有するシートは加工機と接触するが、当該シートは平滑であるので接触による損傷が小さく、粉等の剥離物の発生を抑制できる。この観点から、Saは、より好ましくは10~25μm、さらに好ましくは10~20μmである。本態様のたばこシートは、2つの円弧状曲面が前記範囲のSaを有することが好ましい。Saは公知の方法で測定されるが、以下に好ましい方法を挙げる。
顕微鏡(例えば、KEYENCE社製のVK-X100)を用いて、以下の手順で測定する。
1)シートにおける測定対象部分の一番低い部分の焦点位置を設定
2)シートにおける測定対象部分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
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。
本態様におけるたばこシートは、好ましくは2.0%以上、より好ましくは3.0%以上、さらに好ましくは5.0%以上の引張伸率を有する。引張伸率の上限は限定されないが通常は15%以下程度である。また、たばこシートは、好ましくは2.0N/mm以上、より好ましくは2.5N/mm以上、さらに好ましくは3.0N/mm以上の引張応力を有する。
本態様におけるたばこシートの円弧状曲面の平滑性は、製品の取扱い性に影響を与える。例えば、円弧状曲面の平滑性の乏しいたばこシートを用いた喫煙物品は、加工装置と接触する際にシートが破損する恐れがある。また、その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うる。しかし、本態様のたばこシートの円弧状曲面は平滑性に優れるのでこのような不具合の発生を抑制できる。
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4(A)参照)。図中、200Aはたばこセグメント、Tはたばこシート、220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4(A)に記載のたばこセグメント200A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4(B)参照)。
本態様における波型加工される前の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、バインダーと、媒体とを混練して混合物を調製する工程1。
前記混合物を圧展またはダイから押出してウェットシートを調製する工程2。
前記ウェットシートを乾燥する工程3。
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、後述するとおり「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回以上ローラー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。
本工程はたばこ材料と、バインダーと、媒体とを混練する。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。
1)粉砕
原料を粗砕し、次いで粉砕機(例えばホソカワミクロン製、ACM-5)を用いて、微粉砕を行うことが好ましい。微粉砕後の粒径D90は好ましくは20~1000μmである。粒径は、マスターサイザー(malvern社製)等のレーザー回折型粒度計を用いて測定される。
粉砕されたたばこ原料(例えば、はたばこ粒子)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質量%、好ましくは20~40質量%とすることができるが、工程2によって適宜調製される。例えば、工程2で圧展を行う場合、前記媒体の量は20~50質量%とすることができ、押出しを行う場合は、20~80質量%とすることができる。湿粉の固形分濃度は50~90質量%であることが好ましい。
前記湿粉を、ニーダー(例えば、ダルトン社製DG-1)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。
本工程では、前記混合物(湿粉)を圧展またはダイから押出してウェットシートを調製する。例えば、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対のローラー間に通し、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ことができる。基材フィルムとして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い。ローラーによる圧展は複数回実施することができる。また、前記混合物(湿粉)を所定のギャップを設けたダイ(好ましくはTダイ)から押出して、基材上にウェットシート形成することもできる。基材としては、ガラス板、金属板、プラスチック板などの公知のものを使用できる。押出しには公知の押出機を使用できる。
本工程ではウェットシートを乾燥する。例えば、ラミネートにおいては以下の手順で本工程を実施できる。1)一方の基材フィルムを剥離する。2)当該ラミネートを、通風乾燥機を用いて乾燥する。乾燥温度は室温でもよいが、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。3)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。このようにして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。
本態様におけるたばこシートは、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。
本態様においては、成型剤として、バインダーである置換度が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、本発明においては双方を用いることができる。
置換度=0.162A/(1-0.058A)
A=50×F’-前記硫酸量(ml)×F/絶乾試料質量(g)×0.1
F:前記硫酸のファクター
F’:前記NaOHのファクター
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
本態様においては、第1の態様で説明したたばこ材料を用いることができる。
本態様において、たばこシートは第1の態様で説明したエアロゾル発生剤を含んでいてもよい。
本態様において、たばこシートは第1の態様で説明した乳化剤を含んでいてもよい。
本態様において、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前述の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。
本態様において、たばこシートは第1の態様で説明した香料を含んでいてもよい。
1)厚さ
本態様におけるたばこシートの厚さw3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。
本態様におけるたばこシートは、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。
本態様におけるたばこシートの前記円弧状曲面は、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、本態様における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。
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。本態様におけるたばこセグメントは、第1の態様で説明した通りである。
本態様における波型加工される前の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。
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質量%以下、90質量%以下、または80質量%以下であり、その下限は、好ましくは10質量%以上、20質量%以上、30質量%以上、40質量%以上、または50質量%以上である。
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ー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。
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。
[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)等のレーザー回折型粒度計を用いて測定される。
粉砕されたたばこ原料(例えば、たばこ粒子)に、バインダー、ファイバー状材料、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質量%、好ましくは20~40質量%とすることができるが、工程2で圧展を行うので20~50質量%としてもよい。湿粉の固形分濃度は50~90質量%であることが好ましい。
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。
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対のローラー間に通し、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。ローラー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。
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。
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質量%の範囲で選択できるが、好ましくは20~40質量%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。
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質量%程度であるので、混合物はスラリーとも称される。
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。
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。
たばこラミナ(葉たばこ)をホソカワミクロンACM機にて乾式粉砕し、たばこ粉末を得た。該たばこ粉末について、マスターサイザー(商品名、スペクトリス株式会社マルバーン・パナリティカル事業部製)を用いて、乾式レーザー回折法により測定される体積基準の粒度分布における累積90%粒子径(D90)を測定したところ、200μmであった。
実施例1と同様の方法により圧延成形品を作製した。その後、複数のリング型の回転刃で短冊状に切断した。さらに長さが20mmとなるように切断することで、長さ:20mm、幅:0.8mmの波型形状が付与されていないたばこシートを得た。得られたたばこシートについて、実施例1と同様に膨嵩性を測定した。結果を表1に示す。
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204μm、D50が66μmとなるように粉砕して葉たばこ粒子を得た。D90およびD50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サンローズF20HC(日本製紙株式会社製セルロースエーテル)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。各成分の配合は表A1に示すとおりである。
バインダーとしてサンローズF20HC(日本製紙株式会社製セルロースエーテル)の代わりに、サンローズF30MC、およびサンローズF20LCをそれぞれ用いた以外は、参考例A1と同じ方法でたばこシートを製造し、評価した。
バインダーとしてサンローズF20HC(日本製紙株式会社製セルロースエーテル)の代わりに、サンローズF30MCを用い、その配合量を表A3に示すように変更し、かつグリセリンの量を仕込み質量割合で15.5DB質量%となるように変更した以外は、参考例A1と同じ方法でたばこシートを製造し、評価した。
参考例A1と同じ方法でD90が204μm、D50が66μmである葉たばこ粒子を得た。参考例A1と同じ成分およびパルプをミキサーで混合して混合物を得た。当該混合物を用いて定法に従いキャスト法によってたばこシートを製造した。
定法に従って抄造法によるたばこシートを製造した。具体的には、たばこ原料の水溶性成分を水で抽出し、抽出残渣とパルプと水とを混合し、グラインダーを用いてこれを叩解し、抄紙機でシートを形成し、シートを乾燥し、前記抽出物とグリセリンを当該シートに添加した。参考例A1と同じ方法で当該たばこシートを評価した。シートの組成を表A2に示した。また、上記例で製造したたばこシートの評価結果を表A3に示した。
[刻こぼれ体積]
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、たばこ含有セグメント20Aを調製した。次いで、当該たばこ含有セグメントを備える、図2に示す香味吸引物品1を調製した。図3に示すシステム(ただし内部加熱タイプとした)を準備し、これ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。次いで前記体積%で新たに刻を再度ラッパー22内に充填して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。
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
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。
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。
バインダーとして表B2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、参考例B1と同じ方法でたばこシートを製造し、評価した。
バインダーとして表B2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、参考例B1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B3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。
[刻こぼれ体積]
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、たばこ含有セグメント20Aを調製した。次いで、当該たばこ含有セグメントを備える、図2に示す香味吸引物品1を調製した。図3に示すシステム(ただし内部加熱タイプとした)を準備し、これ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。次いで前記体積%で新たに刻を再度ラッパー22内に充填して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。
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
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。
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。
前述の測定方法により求めた。
[1]たばこ原料を含む非燃焼加熱型香味吸引器用たばこシートであって、前記たばこシートの厚み方向の断面が波型形状を有する、非燃焼加熱型香味吸引器用たばこシート。
[2]前記たばこシートがさらにエアロゾル発生剤を含む、[1]に記載の非燃焼加熱型香味吸引器用たばこシート。
[3]前記エアロゾル発生剤が、グリセリン、プロピレングリコール及び1,3-ブタンジオールからなる群から選択される少なくとも一つである、[2]に記載の非燃焼加熱型香味吸引器用たばこシート。
[4]前記たばこシート100質量%に含まれる前記エアロゾル発生剤の割合が4~50質量%である、[2]又は[3]に記載の非燃焼加熱型香味吸引器用たばこシート。
[5]前記たばこシートが、さらに第一の成型剤及び第二の成型剤を含む、[1]から[4]のいずれかに記載の非燃焼加熱型香味吸引器用たばこシート。
[6]前記第一の成型剤が、多糖類、タンパク及び合成ポリマーからなる群から選択される少なくとも一つである、[5]に記載の非燃焼加熱型香味吸引器用たばこシート。
[7]前記第二の成型剤が、前記第一の成型剤とは異なる、多糖類、タンパク及び合成ポリマーからなる群から選択される少なくとも一つである、[5]又は[6]に記載の非燃焼加熱型香味吸引器用たばこシート。
[8]前記たばこシート100質量%に含まれる前記第一の成型剤の割合が0.1~15質量%である、[5]から[7]のいずれかに記載の非燃焼加熱型香味吸引器用たばこシート。
[9]前記たばこシート100質量%に含まれる前記第二の成型剤の割合が0.1~15質量%である、[5]から[8]のいずれかに記載の非燃焼加熱型香味吸引器用たばこシート。
[10][1]~[9]のいずれかに記載の非燃焼加熱型香味吸引器用たばこシートを含むたばこ含有セグメントを備える非燃焼加熱型香味吸引器。
[11][10]に記載の非燃焼加熱型香味吸引器と、
前記たばこ含有セグメントを加熱する加熱装置と、
を備える非燃焼加熱型香味吸引システム。
[12][1]から[9]のいずれかに記載の非燃焼加熱型香味吸引器用たばこシートの製造方法であって、
たばこ原料、エアロゾル発生剤、第一の成型剤、及び第二の成型剤を含む混合物を調製する工程と、
前記混合物を圧延して圧延成形品を形成する工程と、
前記圧延成形品に回転式ロール刃を押し当てて短冊状に切断しつつ波型形状を付与する工程と、
を含む方法。
[2A] 圧力成形シートである、[1A]に記載のシート。
[3A] バインダーの配合量が、たばこシートの乾燥質量に対し、乾燥質量で6質量%以下である、[1A]または[2A]に記載のシート。
[4A] 両面の算術平均表面粗さSaが5~30μmである、[1A]に記載のたばこシート。
[5A] 5~15%の引張伸率を有する、[1A]~[4A]のいずれかに記載のシート。
[6A] [1A]~[5A]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。
[7A] 少なくとも、たばこ材料と、バインダーと、媒体とを混練して混合物を調製する工程1、
前記混合物を圧展またはダイから押出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、[1A]~[5A]のいずれかに記載のシートの製造方法。
[8A] 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、[7A]に記載の製造方法。
[9A] 前記工程1が、少なくともたばこ材料、バインダー、および媒体とを、一軸または多軸混練機にて混練することを含む、[7A]または[8A]に記載の製造方法。
[10A] 前記混合物が、混合物全量に対して20~80質量%の媒体を含む、[7A]~[9A]のいずれかに記載の製造方法。
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。
[2B] 前記置換度が0.7以上である、[1B]に記載のシート。
[3B] 前記置換度が0.8以上である、[2B]に記載のシート。
[4B] 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、[1B]~[3B]のいずれかに記載のシート。
[5B] 算術平均表面粗さSaが0.03mm以下である、[1B]~[4B]のいずれかに記載のシート。
[6B] 圧力成形シートである、[1B]~[5B]のいずれかに記載のシート。
[7B] 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、[1B]~[6B]のいずれかに記載のシートの製造方法。
[8B] 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、[7B]に記載の製造方法。
[9B] 前記工程2が、混合物を、ローラーを用いて圧展する、またはダイから押出すことを含む、[7B]または[8B]に記載の製造方法。
[10B] 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、[9B]に記載の製造方法。
[11B] [1B]~[6B]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。
2 波
3 鋸歯形状
4 非燃焼加熱型香味吸引器
5 たばこ含有セグメント
6 冷却セグメント
7 センターホールセグメント
8 フィルターセグメント
9 マウスピースセグメント
10 筒状部材
11 穿孔
12 第二の充填層
13 第二のインナープラグラッパー
14 アウタープラグラッパー
15 マウスピースライニングペーパー
16 加熱装置
17 ボディ
18 ヒーター
19 金属管
20 電池ユニット
21 制御ユニット
22 凹部
200A たばこ含有セグメント
210 充填物
220 ラッパー
T たばこシート
a 断面の波の周期を決定する2つの頂点の間の領域
Claims (8)
- たばこ原料を含む非燃焼加熱型香味吸引器用たばこシートであって、前記たばこシートの厚み方向の断面が波型形状を有する、非燃焼加熱型香味吸引器用たばこシート。
- 前記シートの、表面に存在する円弧状曲面および裏面に存在する円弧状曲面のうち少なくとも一方の円弧状曲面が、5~30μmの面算術平均表面粗さSaを有する、請求項1に記載のシート。
- 圧力成形シートである、請求項1または2に記載のシート。
- 置換度が0.65以上であるセルロース誘導体を含む、請求項1~3のいずれか一項に記載のシート。
- 前記置換度が0.7以上である、請求項4に記載のシート。
- 請求項1~5のいずれか一項に記載の非燃焼加熱型香味吸引器用たばこシートを含むたばこ含有セグメント、
を備える非燃焼加熱型香味吸引器。 - 請求項6に記載の非燃焼加熱型香味吸引器と、
前記たばこ含有セグメントを加熱する加熱装置と、
を備える非燃焼加熱型香味吸引システム。 - 請求項1~5のいずれか一項に記載のたばこシートの製造方法であって、
たばこ原料、エアロゾル発生剤、第一の成型剤、及び第二の成型剤を含む混合物を調製する工程と、
前記混合物を圧延して圧延成形品を形成する工程と、
前記圧延成形品に回転式ロール刃を押し当てて短冊状に切断しつつ波型形状を付与する工程と、
を含む方法。
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KR1020247014529A KR20240067130A (ko) | 2021-10-01 | 2022-09-30 | 비연소 가열형 향미 흡인기용 담배 시트 및 그의 제조 방법, 비연소 가열형 향미 흡인기, 및 비연소 가열형 향미 흡인 시스템 |
JP2023551913A JPWO2023054691A1 (ja) | 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 |
CN202280065573.5A CN118019464A (zh) | 2021-10-01 | 2022-09-30 | 非燃烧加热型香味抽吸器用烟草片及其制造方法、非燃烧加热型香味抽吸器、以及非燃烧加热型香味抽吸系统 |
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 |
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PCT/JP2021/036386 WO2022071561A1 (ja) | 2020-10-02 | 2021-10-01 | たばこシート |
PCT/JP2021/036387 WO2022071562A1 (ja) | 2020-10-02 | 2021-10-01 | たばこシート |
JPPCT/JP2021/036386 | 2021-10-01 | ||
JPPCT/JP2021/036387 | 2021-10-01 | ||
JP2021170059 | 2021-10-18 | ||
JP2021-170059 | 2021-10-18 |
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US18/623,063 Continuation 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 |
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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 |
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- 2022-06-28 EP EP22875513.8A patent/EP4410119A1/en active Pending
- 2022-06-28 KR KR1020247014206A patent/KR20240067127A/ko active Search and Examination
- 2022-06-28 JP JP2023550379A patent/JPWO2023053634A1/ja active Pending
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- 2022-09-30 KR KR1020247014529A patent/KR20240067130A/ko active Search and Examination
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EP4410124A1 (en) | 2024-08-07 |
CN117677304A (zh) | 2024-03-08 |
JPWO2023053634A1 (ja) | 2023-04-06 |
CN118019461A (zh) | 2024-05-10 |
EP4410119A1 (en) | 2024-08-07 |
US20240245091A1 (en) | 2024-07-25 |
JPWO2023054691A1 (ja) | 2023-04-06 |
KR20240067130A (ko) | 2024-05-16 |
CN118019464A (zh) | 2024-05-10 |
WO2023053634A1 (ja) | 2023-04-06 |
CN118119289A (zh) | 2024-05-31 |
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US20240245103A1 (en) | 2024-07-25 |
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