WO2020148902A1 - Procédé de production d'une feuille de tabac reconstitué laminée - Google Patents

Procédé de production d'une feuille de tabac reconstitué laminée Download PDF

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Publication number
WO2020148902A1
WO2020148902A1 PCT/JP2019/001532 JP2019001532W WO2020148902A1 WO 2020148902 A1 WO2020148902 A1 WO 2020148902A1 JP 2019001532 W JP2019001532 W JP 2019001532W WO 2020148902 A1 WO2020148902 A1 WO 2020148902A1
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WO
WIPO (PCT)
Prior art keywords
tobacco
sheet
reconstituted tobacco
laminated
reconstituted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/001532
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English (en)
Japanese (ja)
Inventor
宏海 植松
哲也 眞鍋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Priority to PCT/JP2019/001532 priority Critical patent/WO2020148902A1/fr
Priority to EP19910361.5A priority patent/EP3912494A4/fr
Priority to JP2020566083A priority patent/JP7145238B2/ja
Publication of WO2020148902A1 publication Critical patent/WO2020148902A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/02—Material of vegetable origin
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply

Definitions

  • the present invention relates to a method for manufacturing a laminated reconstituted tobacco sheet.
  • tobacco raw materials cigarette bones, tobacco lamina, tobacco cuts, tobacco fine powder, etc.
  • aerosol generators glycol, propylene glycol, etc.
  • This type of non-combustion heating type smoking article is a type of smoking article in which a tobacco filler is heated by a heating device such as an electric heater in a smoking device without being burned, and the aerosol generated in the tobacco filler is delivered to a smoker. Is.
  • Reconstituted tobacco raw material is known as a tobacco filler in non-combustion heating type smoking articles.
  • the reconstituted tobacco raw material is made by mixing the tobacco raw material with binders, gelling agents, cross-linking agents, fragrances, hydrophilic fragrances, lipophilic fragrances, viscosity modifiers, moisturizers or reinforcing materials, etc. Examples thereof include reconstituted tobacco raw materials which have been molded and dried by a kneading method (papermaking), casting method, rolling method or extrusion method, for example, sheet tobacco, chopped sheet tobacco, tobacco granules and the like. Further, the tobacco filler may further contain a fragrance.
  • the type of fragrance is not particularly limited.
  • Examples of the method for producing a reconstituted tobacco sheet include a method for producing a tobacco sheet by a papermaking (papermaking) process, a method for producing a tobacco sheet by a slurry (cast) process, and a method for producing a tobacco sheet by a rolling (roll) process.
  • a method of manufacturing a tobacco sheet by an extrusion molding process is known.
  • a tobacco slurry sheet obtained by a slurry (cast) process can contain a large amount of an aerosol-forming agent such as glycerin, but mechanical strength that can withstand mechanical stress (tensile strength, breaking strength, etc.) Tends to be small.
  • an aerosol-forming agent such as glycerin
  • a tobacco paper sheet obtained by the papermaking process tends to have high mechanical strength due to the entanglement of pulp fibers, but the content of the aerosol-forming agent that can be contained (retained) tends to be smaller than that of the tobacco slurry sheet. .. Therefore, it is conceivable to increase the thickness of the tobacco sheet to increase the content of the aerosol-forming agent that can be contained in the tobacco sheet.
  • the permeation rate of the aerosol-forming agent applied to the base sheet becomes slow, which is not suitable for practical processes.
  • the present invention has been made in view of the above-mentioned circumstances, and an object thereof is a manufacturing process of a reconstituted tobacco sheet containing a tobacco raw material and an aerosol generating agent, which has excellent manufacturing suitability and high mechanical strength, and It is an object of the present invention to provide a technique capable of sufficiently securing the content of the aerosol forming agent per unit area of the reconstituted tobacco sheet.
  • a method for manufacturing a laminated reconstituted tobacco sheet according to the present invention for solving the above-mentioned problems a sheet supply step of supplying a plurality of reconstituted tobacco sheets containing an aerosol forming agent and moisture, and the plurality of reconstituted tobacco sheets.
  • a pressure-bonding step of pressure-bonding the reconstituted tobacco sheets to each other by continuously passing the pressure-bonded rollers in a state where the sheets are laminated, wherein at least one reconstituted tobacco sheet is obtained by extracting a tobacco raw material with water. It is a tobacco paper sheet obtained by separating the aqueous tobacco extract and the insoluble tobacco residue, and mixing the insoluble tobacco residue with pulp to make a base sheet, and then adding the aqueous tobacco extract to the base sheet. It is characterized by This makes it possible to provide a laminated reconstituted tobacco sheet which has excellent production suitability, high mechanical strength, and an excellent content of the aerosol forming agent per unit area.
  • the reconstituted tobacco sheets may be crimped together without adding an additional adhesive or binder.
  • the plurality of reconstituted tobacco sheets may include a tobacco slurry sheet obtained by stretching a slurry containing a tobacco raw material, pulp, water and an aerosol forming agent in a sheet shape on a support, and drying the slurry. ..
  • the content of the aerosol generating agent contained in the tobacco slurry sheet is compared to the content of the aerosol generating agent contained in the tobacco paper sheet. There may be many.
  • the content of the aerosol forming agent contained in the tobacco sheet may be 12 to 25 wt %.
  • the content of the aerosol forming agent contained in the tobacco slurry sheet may be 12 to 65 wt %.
  • the reconstituted tobacco sheets located at the uppermost layer and the lowermost layer may be formed by the tobacco paper sheet.
  • a tobacco raw material, pulp, water, and an aerosol forming agent are used between the tobacco-making sheets located in the uppermost layer and the lowermost layer.
  • a tobacco slurry sheet obtained by drawing a slurry containing the material into a sheet shape and drying it may be sandwiched. Further, a rolled tobacco sheet and/or a tobacco extruded sheet may be sandwiched between the tobacco paper sheets.
  • the extruded sheet is made of, for example, a tobacco raw material containing a tobacco inner bone, tobacco lamina, cut tobacco, fine tobacco powder, etc., a binder (binder), an aerosol generator (glycerin, propylene glycol, etc.), and water in a stirring tank. It is a reconstituted tobacco sheet that can be produced by extruding from a die while applying pressure to a mixed raw material after mixing and drying.
  • a fragrance containing liquid, powdery or granular fragrance is contained between the lowermost layer and the uppermost layer of the tobacco sheet.
  • the sheets may be sandwiched.
  • the water content of each reconstituted tobacco sheet supplied in the sheet supply step may be adjusted to be in the range of 12 to 25 wt %.
  • the reconstituted tobacco sheets may be crimped to each other with the product temperature of the reconstituted tobacco sheets kept at room temperature to 80°C.
  • the pressure for pressing the reconstituted tobacco sheet by the pressure-bonding roller may be set to 200 to 1300 N/cm.
  • the roller gap of the pressure bonding roller may be set to 20 to 80% of the total thickness of the plurality of reconstituted tobacco sheets that are passed through the pressure bonding roller in the pressure bonding step.
  • the means for solving the problems in the present invention can be adopted in combination as much as possible.
  • the manufacturing suitability is excellent and the mechanical strength is high, and the content of the aerosol forming agent per unit area can be sufficiently secured.
  • FIG. 1 is a diagram showing a method for manufacturing a laminated reconstituted tobacco sheet according to the first embodiment.
  • FIG. 2 is a diagram showing a layer structure of the laminated reconstituted tobacco sheet 1 according to the first embodiment.
  • FIG. 3 is a diagram illustrating a method for manufacturing a tobacco sheet according to the first embodiment.
  • FIG. 4 is a diagram illustrating a method for manufacturing a tobacco slurry sheet according to the first embodiment.
  • 5: is a figure explaining the pressure bonding process in the manufacturing method of the laminated reconstruction tobacco sheet in Embodiment 1.
  • FIG. FIG. 6 is a diagram illustrating a pressure bonding step in the method for manufacturing the laminated reconstituted tobacco sheet according to the first modification.
  • FIG. 1 is a diagram showing a method for manufacturing a laminated reconstituted tobacco sheet according to the first embodiment.
  • FIG. 2 is a diagram showing a layer structure of the laminated reconstituted tobacco sheet 1 according to the first embodiment.
  • FIG. 3 is a diagram illustrating
  • FIG. 7 is a figure explaining the pressure bonding process in the manufacturing method of the laminated reconstruction tobacco sheet which concerns on the modification 2.
  • FIG. 8 is a figure explaining the pressure bonding process in the manufacturing method of the laminated reconstruction tobacco sheet which concerns on the modification 3.
  • FIG. 8 is a figure explaining the pressure bonding process in the manufacturing method of the laminated reconstruction tobacco sheet which concerns on the modification 3.
  • FIG. 1 is a diagram showing a method for manufacturing a laminated reconstituted tobacco sheet according to the first embodiment.
  • the method for producing a laminated reconstituted tobacco sheet according to the first embodiment includes a sheet supplying step (step S101) of supplying a plurality of reconstituted tobacco sheets containing an aerosol-generating agent and moisture, and a plurality of reconstituted tobacco sheets are laminated. And a pressure-bonding step (Step S102) of pressure-bonding the reconstituted tobacco sheets to each other by continuously passing the pressure-bonding rollers in the state, wherein at least one reconstituted tobacco sheet is a tobacco paper sheet.
  • a sheet supplying step S101 of supplying a plurality of reconstituted tobacco sheets containing an aerosol-generating agent and moisture, and a plurality of reconstituted tobacco sheets are laminated.
  • a pressure-bonding step Step S102 of pressure-bonding the reconstituted tobacco sheets to each other by continuously passing the pressure-bonding rollers in the state, wherein at least one re
  • FIG. 2 is a diagram showing a layer structure of the laminated reconstituted tobacco sheet 1 obtained by the manufacturing method shown in FIG.
  • the laminated reconstituted tobacco sheet 1 shown in FIG. 2 has a three-layer structure in which a first reconstituted tobacco sheet S1, a second reconstituted tobacco sheet S2, and a third reconstituted tobacco sheet S3 are laminated and each sheet is pressure-bonded. ing.
  • the first reconstituted tobacco sheet S1 forming the uppermost layer of the laminated reconstituted tobacco sheet 1 and the third reconstituted tobacco sheet S3 forming the lowermost layer are formed by the tobacco paper sheet 11.
  • the second reconstituted tobacco sheet S2 forming the intermediate layer is formed by the tobacco slurry sheet 12.
  • the laminated reconstituted tobacco sheet 1 is used as a tobacco filler filled inside a wrapping paper of a tobacco rod of a non-combustion heating type smoking article.
  • the laminated reconstituted tobacco sheet 1 is cut into various forms such as finely chopped grains, fine particles, small pieces, and strips, and then filled into the inside of the wrapping paper as a tobacco filler to form a tobacco rod.
  • the laminated reconstituted tobacco sheet 1 may be folded into a gather shape and then filled inside the wrapping paper of the tobacco rod.
  • the laminated reconstituted tobacco sheet 1 may be subjected to processing for forming a plurality of grooves extending in the longitudinal direction at regular intervals on the surface thereof by laser processing or the like.
  • the laminated reconstituted tobacco sheet 1 rolled into a cylindrical shape so that the groove formed on the surface thereof coincides with the axially extending direction of the tobacco rod is provided with a multilayer structure inside the cigarette paper of the tobacco rod of the non-combustion heating type smoking article. It may be placed on top of each other.
  • Tobacco paper sheet 11 is obtained by extracting a tobacco raw material with water to separate it into an aqueous tobacco extract and an insoluble tobacco residue, and adding pulp (cellulosic fiber) to the insoluble tobacco residue to make a base sheet.
  • the slurry sheet 12 is a reconstituted tobacco sheet obtained by drawing a slurry raw material containing at least a tobacco raw material, pulp, water, and an aerosol forming agent into a sheet shape on a support and drying the sheet.
  • FIG. 3 is a diagram illustrating a method for manufacturing the tobacco paper sheet 11 according to the first embodiment.
  • a tobacco raw material containing a tobacco inner bone, tobacco lamina, tobacco cut, tobacco fine powder, etc. is extracted with water (extraction step).
  • extraction step for example, 10 times the amount of water is added to the tobacco raw material, and the mixture is obtained by heating with stirring at a predetermined temperature for a predetermined time.
  • step S202 the mixture obtained in the extraction step is squeezed using, for example, a screw press dehydrator to separate into an aqueous tobacco extract (liquid) and an insoluble tobacco residue (solid) (separation step).
  • step S203 water and pulp (cellulose fibers) are added to the insoluble tobacco residue obtained in the separation step, and then the insoluble tobacco residue is beaten using a refiner to adjust the fiber length or fluff the fibers. It is made into fibers (beating step).
  • step S204 the insoluble tobacco residue and pulp that have been fiberized in the beating step are made into a sheet by a paper machine and dried to obtain a base sheet (paper making step).
  • step S205 the concentrated solution of the aqueous tobacco extract obtained in the separation step and the additive solution containing the aerosol-forming agent such as glycerin or propylene glycol are added to the base sheet (perfuming step). ..
  • the concentrated liquid of the aqueous tobacco extract added to the base sheet can be obtained, for example, by concentrating the aqueous tobacco extract with an evaporator.
  • step S206 the perfumed base sheet obtained in the perfuming step is dried (drying step).
  • the tobacco paper sheet 11 is obtained by the above manufacturing method.
  • the tobacco sheet 11 according to the present embodiment has the content of the aerosol-forming agent adjusted to 12 to 25 wt %.
  • the water content of the tobacco sheet 11 is adjusted to be in the range of 12 to 25 wt %.
  • the tobacco paper sheet 11 capable of supplying a necessary and sufficient amount of aerosol can be obtained.
  • the content of the aerosol-generating agent in the tobacco sheet 11 to 25 wt% or less, it is possible to supply an excessive amount of the aerosol-generating agent to the base sheet beyond the retention capacity of the aerosol-generating agent in the base sheet. Can be suppressed. Thereby, for example, it is possible to prevent the surface of the base sheet from becoming sticky due to the aerosol-forming agent.
  • FIG. 4 is a diagram illustrating a method for manufacturing the tobacco slurry sheet 12 according to the first embodiment.
  • a tobacco raw material including a tobacco core, tobacco lamina, cut tobacco, fine tobacco powder, etc. is pulverized, and then a small amount of a binder (binder) and a reinforcing agent (pulp A defibrated material, etc.), a predetermined amount of an aerosol generator (glycerin, propylene glycol, etc.) and water are mixed, for example, in a stirring tank to obtain a slurry (suspension).
  • the binder (binder) include guar gum, xanthan gum, CMC (methylol fiber) and the like.
  • step S302 the slurry obtained in the slurry acquisition step is cast (stretched) into a sheet shape, for example, on a steel belt (support) to obtain a slurry web (casting step).
  • step S303 the sheet-shaped slurry web stretched into a sheet is dried (drying step).
  • the tobacco slurry sheet 12 is obtained.
  • the content of the aerosol generating agent is adjusted to 12 to 65 wt %.
  • the water content of the tobacco slurry sheet 12 is adjusted to be in the range of 12 to 25 wt %.
  • the tobacco slurry sheet 12 capable of supplying a necessary and sufficient amount of aerosol can be obtained. Further, by setting the content of the aerosol forming agent of the tobacco slurry sheet 12 to 65 wt% or less, an excessive amount of the aerosol forming agent is supplied to the tobacco slurry sheet 12 beyond the retention capacity of the aerosol forming agent in the tobacco slurry sheet 12. Can be suppressed. As a result, it is possible to prevent the surface of the tobacco slurry sheet 12 from becoming sticky due to the aerosol-forming agent and causing a problem such as sticking during storage. It should be noted that the tobacco slurry sheet 12 has a higher ability to hold the aerosol-forming agent than the tobacco paper sheet 11.
  • the tobacco slurry sheet 12 contains a relatively large amount of the aerosol forming agent as compared with the tobacco paper sheet 11.
  • the tobacco slurry sheet 12 has a characteristic that pulp fibers are weakly entangled with each other and mechanical strength (tensile strength, breaking strength, etc.) is smaller than that of the tobacco paper sheet 11 due to the characteristics of the manufacturing process.
  • the tobacco paper sheet 11 has a smaller amount of the aerosol-forming agent that can be contained as compared with the tobacco slurry sheet 12 as described above, but since the pulp fibers are strongly entangled with each other, mechanical strength ( It has the characteristics of high tensile strength, breaking strength, etc.).
  • the laminated reconstituted tobacco sheet 1 has a laminated sheet structure in which the tobacco paper sheet 11 and the tobacco slurry sheet 12 having different characteristics are laminated as described above.
  • the method for manufacturing the laminated reconstituted tobacco sheet 1 will be described in detail.
  • the tobacco sheet supplying step step S101 in FIG. 1
  • two tobacco papers manufactured by the method described in FIGS. A sheet 11 and one tobacco slurry sheet 12 are prepared. It should be noted that the tobacco paper sheet 11 produced by the production method described with reference to FIG. 3 and the tobacco slurry sheet 12 produced by the production method described with reference to FIG. good.
  • FIG. 5 is a figure explaining the pressure bonding process in the manufacturing method of the laminated reconstruction tobacco sheet 1 in Embodiment 1.
  • the tobacco reconstituted tobacco sheet S1 (top layer) forming the first reconstituted tobacco sheet S1 (top layer) in the laminated reconstituted tobacco sheet 1 and the third reconstituted tobacco sheet S3 (bottom layer)
  • the reconstituted tobacco sheets S1 to S3 are continuously pressure-bonded in such a manner that the tobacco slurry sheets 12 forming the second reconstituted tobacco sheet S2 (intermediate layer) are sandwiched between the tobacco paper sheets 11 forming the By passing through the roller 20, the reconstituted tobacco sheets S1 to S3 are pressed against each other.
  • the pressure-bonding roller 20 has at least a pair of roller members 21 and 22, and each of the reconstituted tobacco sheets S1 to S3 stacked between the pair of roller members 21 and 22 is continuously passed, thereby A compressive force acts in the layer direction (thickness direction) on the constituted tobacco sheets S1 to S3.
  • each reconstituted tobacco sheet is made by utilizing the hydrogen bond between the tobacco raw materials when the plurality of reconstituted tobacco sheets S1 to S3 are pressed in a stacked state by the pair of roller members 21 and 22. Clamp S1 to S3 together.
  • the first reconstituted tobacco sheet S1 by hydrogen bonding between the tobacco raw materials in the first reconstituted tobacco sheet S1 (tobacco paper sheet 11) and the second reconstituted tobacco sheet S2 (tobacco slurry sheet 12).
  • the papermaking sheet 11) and the second reconstituted tobacco sheet S2 (tobacco slurry sheet 12) are integrally pressure-bonded.
  • the third reconstituted tobacco sheet S3 (tobacco paper sheet 11) is formed by hydrogen bonding between the tobacco raw materials in the third reconstituted tobacco sheet S3 (tobacco paper sheet 11) and the second reconstituted tobacco sheet S2 (tobacco slurry sheet 12).
  • the second reconstituted tobacco sheet S2 (tobacco slurry sheet 12) is integrally pressure-bonded.
  • a hydrogen bond is a lone electron such as nitrogen, oxygen, sulfur, fluorine, or ⁇ electron system in which a hydrogen atom, which is covalently bonded to an atom with a high electronegativity (negative atom), is located. It is a non-covalent, attractive interaction with a pair.
  • the method for manufacturing the laminated reconstituted tobacco sheet 1 according to the present embodiment utilizes hydrogen bonds between the tobacco raw materials in the crimping step, so that each reconstituted tobacco sheet S1 can be formed without adding an additional adhesive or binder. It is possible to press-bond S3 to each other integrally.
  • the pressure for pressing the reconstituted tobacco sheets S1 to S3 by the pressure bonding roller 20 is set to 200 to 1300 N/cm.
  • the pressing force of the pressure roller 20 is too high, the reconstituted tobacco sheets S1, S3 are likely to stick to the pressure roller 20 (a pair of roller members 21, 22), and if the pressing force is too low, the reconstituted tobacco sheets S1 to It is difficult to crimp S3 parts together.
  • the sandwiching pressure of the pressure roller 20 (a pair of roller members 21 and 22) within the range of 200 to 1300 N/cm, the reconstituted tobacco sheets S1 to S3 can be pressure-bonded more reliably.
  • a reconstituted tobacco sheet passing between the roller members 21 and 22 of the pressure bonding roller 20 (in the present embodiment, the first reconstituted tobacco sheet S1 forming the uppermost layer of the laminated reconstituted tobacco sheet 1 or the first reconstituted tobacco sheet forming the lowermost layer). Adhesion of the 3 reconstituted tobacco sheet S3) to the roller members 21 and 22 can be suitably suppressed.
  • the roller gap RC between the pressure-bonding rollers 20 (between the pair of roller members 21 and 22) is too narrow, the laminated reconstituted tobacco sheets S1 to S3 are smoothly bonded between the pair of roller members 21 and 22 in the pressure-bonding step. It becomes difficult to feed the sheet into the sheet, and wrinkles are generated in the sheet due to the slip of the pair of roller members 21 and 22, and the sheet is easily broken. On the other hand, if the roller gap RC is too wide, there is a possibility that the pressure of the reconstituted tobacco sheets S1 to S3 is weakened.
  • the roller gap is set to 20 to 80% of the total thickness of the plurality of reconstituted tobacco sheets S1 to S3 that pass through the pressure bonding roller 20 (between the pair of roller members 21 and 22) in the pressure bonding step.
  • RC is set.
  • the reconstituted tobacco sheets S1 to S3 are pressure-bonded in the pressure-bonding step, if the temperature of the reconstituted tobacco sheets S1 to S3 is too high, the pair of roller members 21, 22 in the pressure-bonding roller 20 are subjected to the first reconstituted tobacco.
  • the sheet S1 or the third reconstituted tobacco sheet S3 is easily attached, and if the product temperature is too low, the reconstituted tobacco sheets S1 to S3 may be difficult to press-bond. Therefore, in the present embodiment, the reconstituted tobacco sheets S1 to S3 are pressure-bonded in the pressure-bonding step with the product temperature kept at room temperature to 80°.
  • the product temperature of each reconstituted tobacco sheet S1 to S3 may be adjusted within the range of 20 to 80°C.
  • the above-mentioned problems can be preferably suppressed. That is, in the crimping step, the reconstituted tobacco sheets S1 to S3 can be suitably crimped while suppressing the sticking of the reconstituted tobacco sheets S1 to S3 to the pair of roller members 21 and 22.
  • the moisture content of each reconstituted tobacco sheet S1 to S3 supplied in the sheet supply step is adjusted to be in the range of 12 to 25 wt %.
  • the first reconstituted tobacco sheet S1 or the third reconstituted tobacco sheet S3 is a pair of roller members in the pressure-bonding roller 20 by setting the moisture contents of the respective reconstituted tobacco sheets S1 to S3 to be pressure-bonded to each other in the pressure-bonding step within the above range.
  • the sheets can be suitably pressure-bonded to each other by making it easy to cause hydrogen bonding between the tobacco raw materials of the reconstituted tobacco sheets S1 to S3 while suppressing sticking to the sheets 21 and 22.
  • each of the reconstituted tobacco sheets S1 to S3 is too high, the tobacco raw material is likely to rot or deteriorate, and if the moisture content is too low, the rigidity of the sheet becomes high and the sheets may be easily crushed. Therefore, by defining the moisture content of each of the reconstituted tobacco sheets S1 to S3 within the range of 12 to 25 wt% as described above, it is possible to preferably suppress the occurrence of the above-mentioned problems.
  • the reconstituted tobacco sheets S1 to S3 are pressure-bonded to each other to form the laminated reconstituted tobacco sheet 1.
  • the basis weight can be increased. This makes it possible to easily increase the content of the aerosol-generating agent per unit area of the laminated reconstituted tobacco sheet 1.
  • a sufficient delivery amount of aerosol generation is ensured during smoking of the non-combustion heating type smoking article.
  • the smoke amount can be increased.
  • At least one of the plurality of reconstituted tobacco sheets S1 to S3 to be crimped in the crimping step includes the tobacco papermaking sheet. Therefore, the mechanical strength (tensile strength, breaking strength, etc.) of the laminated reconstituted tobacco sheet 1 can be sufficiently secured.
  • the method for manufacturing the laminated reconstituted tobacco sheet 1 in the present embodiment it is possible to press-bond the plurality of reconstituted tobacco sheets to each other in the pressing step without adding an additional adhesive or binder. ..
  • a large amount of non-water-soluble adhesive is used in order to suppress the occurrence of off-taste and off-flavor when smoking a non-combustion heating type smoking article. Difficult to use for.
  • the water content of the reconstituted tobacco sheets is increased, which may require a re-drying step.
  • a plurality of sheets of tobacco are produced by utilizing hydrogen bonding between tobacco raw materials without adding an additional adhesive or binder in the crimping step. Since the reconstituted tobacco sheets can be pressure-bonded to each other, it is possible to prevent the inconvenience described above from occurring.
  • the method for manufacturing a laminated reconstituted tobacco sheet 1 according to the present embodiment even if the individual sheet thickness of the reconstituted tobacco sheet that is pressure-bonded in the pressure-bonding step is small, by increasing the number of layers laminated, The content of the aerosol generating agent per unit area of the constituted tobacco sheet 1 can be sufficiently secured. Therefore, at the time of manufacturing the tobacco paper sheet 11 forming the first reconstituted tobacco sheet S1 and the third reconstituted tobacco sheet S3, when the concentrated liquid of the aqueous tobacco extract or the aerosol forming agent is added to the base sheet in the perfume step.
  • an appropriate thickness that can uniformly permeate the additive liquid containing the concentrated liquid of the aqueous tobacco extract in the thickness direction of the base sheet within the time required by the manufacturing conditions of the manufacturing apparatus (actual machine). You can set the thickness of the base sheet. As a result, the suitability for manufacturing the tobacco papermaking sheet 11 which is a constituent material of the laminated reconstituted tobacco sheet 1 becomes very excellent. Therefore, according to the manufacturing method of the present embodiment, it is possible to provide a laminated reconstituted tobacco sheet 1 which has excellent manufacturing suitability and high mechanical strength, and can sufficiently secure the content of the aerosol-generating agent per unit area. You can
  • At least one of the plurality of reconstituted tobacco sheets S1 to S3 to be crimped in the crimping step includes the tobacco slurry sheet 12.
  • the tobacco slurry sheet 12 is excellent in the ability to hold the aerosol forming agent, it is possible to contain and hold a larger amount of the aerosol forming agent. Therefore, the laminated reconstituted tobacco sheet 1 is formed by forming the laminated reconstituted tobacco sheet 1 as a laminated structure in which the tobacco slurry sheet 12 excellent in the content of the aerosol generating agent and the tobacco paper sheet 11 excellent in mechanical strength are combined. It is possible to further increase the content of the aerosol generating agent while ensuring the mechanical strength of 1.
  • the method for manufacturing the laminated reconstituted tobacco sheet 1 according to the present embodiment, among the plurality of reconstituted tobacco sheets S1 to S3 that pass between the pair of roller members 21 and 22 of the pressure bonding roller 20 in the pressure bonding step,
  • the first reconstituted tobacco sheet S1 located in the upper layer and the third reconstituted tobacco sheet S3 located in the lowermost layer are formed by the tobacco paper sheet 11, and the second reconstituted tobacco sheet S2 located in the intermediate layer is the tobacco slurry sheet 12 Formed by.
  • the tobacco slurry sheet 12 has a relatively large content of the aerosol-forming agent as compared with the tobacco paper sheet 11, and has a property that the surface is more sticky than the tobacco paper sheet 11.
  • the outer layer of the laminated reconstituted tobacco sheet 1 is separated by the tobacco paper sheet 11 by sandwiching the tobacco slurry sheet 12 between the tobacco paper sheets 11. Since it is formed, stickiness on the surface of the laminated reconstituted tobacco sheet 1 can be suppressed.
  • the reconstituted tobacco is compressed when the plurality of reconstituted tobacco sheets laminated in the pressure bonding step are spread by the pressure bonding roller 20 (a pair of roller members 21, 22). It is possible to more preferably suppress the sheet from sticking to the roller members 21 and 22, the wrinkles, and the breakage of the reconstituted tobacco sheet.
  • the outer layer of the laminated reconstituted tobacco sheet 1 is formed of a tobacco paper sheet 11 having excellent mechanical strength, and a tobacco slurry sheet 12 having a relatively lower mechanical strength than the tobacco paper sheet 11 is laminated and reconstituted.
  • a tobacco slurry sheet 12 having a relatively lower mechanical strength than the tobacco paper sheet 11 is laminated and reconstituted.
  • the outer layer of the laminated reconstituted tobacco sheet 1 with the tobacco paper sheet 11, it is possible to prevent the surface of the laminated reconstituted tobacco sheet 1 from sticking, so that the slipperiness of the winding tube portion is improved and the smoothness is improved. Raw materials can be transported. As a result, it is possible to improve the hoisting suitability in the hoist for hoisting the laminated reconstituted tobacco sheet 1.
  • FIG. 6 is a diagram illustrating a pressure bonding step in the method for manufacturing the laminated reconstituted tobacco sheet 1 according to the first modification.
  • the method for manufacturing the laminated reconstituted tobacco sheet 1 according to the present embodiment is a method in which at least one of a plurality of reconstituted tobacco sheets is a tobacco paper sheet, and the reconstituted tobacco sheets are continuously laminated with a pressure roller. It suffices to press the sheets together by passing through them, and the number of laminated reconstituted tobacco sheets is not particularly limited. Further, the number of the tobacco paper sheets included in the laminated reconstituted tobacco sheet 1 may be one.
  • the laminated reconstituted tobacco sheet 1 has a two-layer structure in which a tobacco paper sheet 11 and a tobacco slurry sheet 12 are laminated one by one and pressure-bonded to each other. Also in the method for producing the laminated reconstituted tobacco sheet 1 according to Modification Example 1, the laminated slurry is reconstructed as a laminated structure in which a tobacco slurry sheet 12 having an excellent aerosol-generating agent content and a tobacco paper sheet 11 having excellent mechanical strength are combined. By forming the constituted tobacco sheet 1, it is possible to suitably increase the mechanical strength of the laminated reconstituted tobacco sheet 1 and the ability to contain the aerosol generating agent.
  • the laminated reconstituted tobacco sheet 1 may be formed by pressing a plurality of tobacco paper sheets 11 together.
  • FIG. 7: is a figure explaining the pressure bonding process in the manufacturing method of the laminated reconstruction tobacco sheet 1 which concerns on the modification 2. As shown in FIG. In Modified Example 2 shown in FIG. 7, the four tobacco paper sheets 11 are laminated to each other by passing through the pressure roller 20 (a pair of roller members 21 and 22). According to this modification, the laminated reconstituted tobacco sheet 1 having extremely excellent mechanical strength can be obtained. Of course, the number of laminated sheets of the tobacco sheet 11 may be adjusted according to the mechanical strength required for the laminated reconstituted tobacco sheet 1, the content of the aerosol forming agent, or the like.
  • FIG. 8 is a diagram illustrating a crimping step in the method for manufacturing the laminated reconstituted tobacco sheet 1 according to Modification 3.
  • the laminated reconstituted tobacco sheet 1 according to Modification 3 has a three-layer structure in which a flavor-containing sheet 13 is sandwiched between a tobacco paper sheet 11 and a tobacco slurry sheet 12.
  • the tobacco paper sheet 11, the flavor-containing sheet 13, and the tobacco slurry sheet 12 are passed through the pressure-bonding roller 20 (a pair of roller members 21, 22), and each sheet is separated. Crim them together.
  • the perfume-containing sheet 13 is a sheet material in which the perfume is coated with a gel of a polysaccharide containing no gelling agent.
  • Various fragrances can be used as the fragrance contained in the fragrance-containing sheet 13, and for example, menthol can be used.
  • the fragrance contained in the fragrance-containing sheet 13 may be in a liquid form, a powder form, or a granular form.
  • the following polysaccharides namely, carrageenan (also referred to as carrageenin and carrageenan) extracted from seaweeds of the red algae, agar, and seeds of trees are extracted.
  • carrageenan also referred to as carrageenin and carrageenan
  • Galactomannan locust bean gum (carob gum), guar gum, tara gum, cassia gum, tamarind gum whose structure is xyloglucan extracted from the seed of resin, and the structure of xylan whose structure is xylan with arabinose side Cylium seed gum, which is an acidic polysaccharide with chains, xanthan gum and gellan gum (also referred to as dieteran gum), which are polysaccharides produced by microorganisms, konjac glucomannan extracted from konjac, starch (including various raw materials and solubility), etc. Can be mentioned.
  • the polysaccharide used as the coating agent for coating the flavor may be a complex system in which two or more components selected from the above-mentioned group of polysaccharides are combined.
  • the method for preparing the flavor-containing sheet 13 is exemplified below.
  • a polysaccharide single component type or complex type
  • a perfume and an emulsifier in a liquid state (or a molten state) at a heating temperature of 60 to 90° C. are added and kneaded and emulsified.
  • the perfume-containing sheet 13 can be produced by casting on a support in a state of maintaining the emulsified state and evaporating the water in which the polysaccharide is dissolved.
  • the laminated reconstituted tobacco sheet 1 including the fragrance-containing sheet 13 produced as described above By applying the laminated reconstituted tobacco sheet 1 including the fragrance-containing sheet 13 produced as described above to a tobacco filler in a tobacco rod of a non-combustion heating type smoking article, a non-combustion heating type having a high fragrance content is provided. Tobacco rods for smoking articles can be made. Further, since the polysaccharide can be gelated only by heating, no gelling agent is needed. Therefore, the fragrance-containing sheet 13 does not contain a gelling agent such as a metal chloride, and has an advantage that an undesired chloride decomposition product is not generated in the aerosol when the non-combustion heating type smoking article is smoked.
  • a gelling agent such as a metal chloride
  • the stacking order of the tobacco paper sheet 11, the flavor-containing sheet 13, and the tobacco slurry sheet 12 can be changed appropriately. Further, in the modified example 3, the type and the number of laminated sheets of the reconstituted tobacco sheet included in the laminated reconstituted tobacco sheet 1 can be appropriately changed.
  • the laminated reconstituted tobacco sheet 1 may include a rolled tobacco sheet that is a reconstituted tobacco sheet manufactured by a rolling (rolling) process.
  • Rolled tobacco sheets include, for example, binders, binders, reinforcing agents (pulp defibrated materials, etc.), aerosol generators (glycerin, propylene, etc.) for tobacco raw materials, including tobacco mid-bones, tobacco lamina, tobacco cuts, and tobacco fine powder.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)

Abstract

Dans un processus de production d'une feuille de tabac reconstitué comprenant une matière première de tabac et un agent de formation d'aérosol, l'invention concerne une technique selon laquelle il devient possible d'améliorer l'aptitude à la production et la résistance mécanique et de sécuriser le contenu d'une solution de formation d'aérosol par unité de surface de manière satisfaisante. Un procédé de production d'une feuille de tabac reconstitué laminée comprend une étape d'apport de feuille consistant à apporter une pluralité de feuilles de tabac reconstitué contenant chacune un agent de formation d'aérosol et de l'eau et une étape de liaison par pression consistant à permettre à la pluralité de feuilles de tabac reconstitué de passer entre des rouleaux de pressage en continu, tout en maintenant la pluralité de feuilles de tabac reconstitué sous une forme laminée pour lier par pression les feuilles de tabac reconstitué l'une à l'autre, au moins une des feuilles de tabac reconstitué étant une feuille de tabac qui est produite par une technique de fabrication de papier, de telle sorte qu'une matière première de tabac soit extraite avec de l'eau pour séparer la matière première de tabac en un extrait de tabac à base d'eau et un résidu de tabac insoluble dans l'eau, puis la pâte est mélangée au résidu de tabac insoluble, puis une feuille de base est fabriquée à partir du produit mélangé résultant par une technique de fabrication de papier, puis l'extrait de tabac à base d'eau est ajouté à la feuille de base.
PCT/JP2019/001532 2019-01-18 2019-01-18 Procédé de production d'une feuille de tabac reconstitué laminée Ceased WO2020148902A1 (fr)

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PCT/JP2019/001532 WO2020148902A1 (fr) 2019-01-18 2019-01-18 Procédé de production d'une feuille de tabac reconstitué laminée
EP19910361.5A EP3912494A4 (fr) 2019-01-18 2019-01-18 Procédé de production d'une feuille de tabac reconstitué laminée
JP2020566083A JP7145238B2 (ja) 2019-01-18 2019-01-18 積層再構成たばこシートの製造方法

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JPWO2022138261A1 (fr) * 2020-12-24 2022-06-30
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EP3912494A1 (fr) 2021-11-24
JPWO2020148902A1 (ja) 2021-09-09
EP3912494A4 (fr) 2022-08-31

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