EP3912494A1 - 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
EP3912494A1
EP3912494A1 EP19910361.5A EP19910361A EP3912494A1 EP 3912494 A1 EP3912494 A1 EP 3912494A1 EP 19910361 A EP19910361 A EP 19910361A EP 3912494 A1 EP3912494 A1 EP 3912494A1
Authority
EP
European Patent Office
Prior art keywords
tobacco
sheet
reconstituted tobacco
sheets
pressure
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.)
Withdrawn
Application number
EP19910361.5A
Other languages
German (de)
English (en)
Other versions
EP3912494A4 (fr
Inventor
Hiromi Uematsu
Tetsuya MANABE
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
Publication of EP3912494A1 publication Critical patent/EP3912494A1/fr
Publication of EP3912494A4 publication Critical patent/EP3912494A4/fr
Withdrawn legal-status Critical Current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 producing a laminated reconstituted tobacco sheet.
  • non-combustion heating-type smoking articles having a tobacco rod formed by filling the inside of wrapping paper with a tobacco filler containing a tobacco raw material (such as tobacco midribs, tobacco laminae, shredded tobacco, and tobacco fine powder) and an aerosol-source material (such as glycerol or propylene glycol).
  • a tobacco raw material such as tobacco midribs, tobacco laminae, shredded tobacco, and tobacco fine powder
  • an aerosol-source material such as glycerol or propylene glycol
  • a reconstituted tobacco raw material As the tobacco filler for non-combustion heating-type smoking articles, a reconstituted tobacco raw material is known.
  • the reconstituted tobacco raw material is provided by subjecting a tobacco raw material to kneading with additives such as a binder, a gelling agent, a crosslinking agent, a flavor, a hydrophilic flavor, an oleophilic flavor, a viscosity modifier, a humectant, or a reinforcing material, and to molding and drying by a papermaking process (papermaking), a casting process, a rolling process, or an extrusion process;
  • examples of the reconstituted tobacco raw material include sheet tobacco, shredded tobacco of the sheet tobacco, and tobacco granules.
  • a flavor may be further added.
  • the type of the flavor is not particularly limited.
  • known examples include a method of performing a papermaking (paper manufacturing) process to produce a tobacco sheet, a method of performing a slurry (casting) process to produce a tobacco sheet, a method of performing a rolling (roll) process to produce a tobacco sheet, and a method of performing an extrusion process to produce a tobacco sheet.
  • Reconstituted tobacco sheets used as tobacco fillers in non-combustion heating-type smoking articles are desirably produced to have increased generation amount of aerosol (delivery) to enrich smoking experience.
  • tobacco slurry sheets obtained by the slurry (casting) process are known to have high capacity for containing aerosol-source materials such as glycerol, but tend to have low mechanical strength (such as tensile strength or breaking strength) for resisting mechanical stress.
  • tobacco paper sheets obtained by the papermaking process tend to have high mechanical strength due to intertwinement of pulp fibers, but tend to have lower capacity for containing (holding) aerosol-source materials than tobacco slurry sheets.
  • a technique may be devised: tobacco paper sheets are provided so as to have increased thickness, to thereby increase the capacity for aerosol-source materials contained in the tobacco paper sheets.
  • an object is to provide a technique of, during the production process of a reconstituted tobacco sheet containing a tobacco raw material and an aerosol-source material, providing high production suitability and high mechanical strength, and ensuring a sufficient aerosol-source material content per unit area of the reconstituted tobacco sheet.
  • a method for producing a laminated reconstituted tobacco sheet according to the present invention includes a sheet feeding step of feeding a plurality of reconstituted tobacco sheets containing an aerosol-source material and moisture; and a pressure-bonding step of continuously passing, through a pressure roller, the plurality of reconstituted tobacco sheets being stacked, to pressure-bond together the reconstituted tobacco sheets, wherein at least one of the reconstituted tobacco sheets is a tobacco paper sheet obtained such that a tobacco raw material is extracted with water and separated into a water-based tobacco extract and an insoluble tobacco residue, the insoluble tobacco residue is mixed with pulp and subjected to papermaking to provide a base sheet, and subsequently the water-based tobacco extract is added to the base sheet.
  • This provides a laminated reconstituted tobacco sheet that has high production suitability and high mechanical strength, and has a high aerosol-source material content per unit area.
  • the reconstituted tobacco sheets may be pressure-bonded together without applying additional adhesive or binder.
  • the plurality of reconstituted tobacco sheets may include a tobacco slurry sheet obtained by spreading, into a sheet shape over a support, a slurry containing a tobacco raw material, pulp, water, and an aerosol-source material, and drying the slurry
  • the tobacco slurry sheet may have an aerosol-source material content higher than an aerosol-source material content of the tobacco paper sheet.
  • the tobacco paper sheet may have an aerosol-source material content of 12 to 25 wt%.
  • the tobacco slurry sheet may have an aerosol-source material content of 12 to 65 wt%.
  • reconstituted tobacco sheets positioned in an uppermost layer and a lowermost layer may be formed of the tobacco paper sheet.
  • a tobacco slurry sheet may be sandwiched, the tobacco slurry sheet being obtained by spreading, into a sheet shape over a support, a slurry containing a tobacco raw material, pulp, water, and an aerosol-source material, and drying the slurry. Furthermore, between the tobacco paper sheets, a tobacco rolled sheet and/or a tobacco extrusion sheet may be sandwiched.
  • the extrusion sheet is a reconstituted tobacco sheet that can be produced by, for example, mixing a tobacco raw material containing tobacco midribs, tobacco laminae, shredded tobacco, tobacco fine powder, and the like with a binder (binding agent), an aerosol-source material (such as glycerol or propylene glycol), water, and the like within a stirring tank, subsequently extruding the mixed raw material, under application of pressure, through a die, and drying the mixed raw material.
  • a binder binder
  • an aerosol-source material such as glycerol or propylene glycol
  • a flavor-containing sheet containing a liquid, powdery, or granular flavor may be sandwiched.
  • the reconstituted tobacco sheets fed in the sheet feeding step may each have a moisture content adjusted to be in a range of 12 to 25 wt%.
  • the reconstituted tobacco sheets may be pressure-bonded together while the reconstituted tobacco sheets have sheet temperatures controlled to be ordinary temperature to 80°C.
  • the pressure roller may be set to nip the reconstituted tobacco sheets at a nip pressure of 200 to 1300 N/cm.
  • the pressure roller may be set to have a roller clearance that is 20 to 80% of a total thickness of the plurality of reconstituted tobacco sheets passed through the pressure roller in the pressure-bonding step.
  • the present invention provides a technique of, during the production process of a reconstituted tobacco sheet containing shredded tobacco and an aerosol-source material, providing high production suitability and high mechanical strength, and ensuring a sufficient aerosol-source material content per unit area.
  • Fig. 1 illustrates a method for producing a laminated reconstituted tobacco sheet according to Embodiment 1.
  • the method for producing a laminated reconstituted tobacco sheet in Embodiment 1 includes a sheet feeding step (Step S101) of feeding a plurality of reconstituted tobacco sheets containing an aerosol-source material and water, and a pressure-bonding step (Step S102) of continuously passing, through a pressure roller, the plurality of reconstituted tobacco sheets being stacked to pressure-bond together the reconstituted tobacco sheets, wherein at least one of the reconstituted tobacco sheets is a tobacco paper sheet.
  • Fig. 2 illustrates the layer structure of a laminated reconstituted tobacco sheet 1 obtained by the production method illustrated in Fig. 1 .
  • the laminated reconstituted tobacco sheet 1 illustrated in Fig. 2 has a trilayer structure in which a first reconstituted tobacco sheet S1, a second reconstituted tobacco sheet S2, and a third reconstituted tobacco sheet S3 are stacked and the sheets are pressure-bonded together.
  • the first reconstituted tobacco sheet S1 forming the uppermost layer and the third reconstituted tobacco sheet S3 forming the lowermost layer are formed of tobacco paper sheets 11.
  • the second reconstituted tobacco sheet S2 forming the intermediate layer is formed of a tobacco slurry sheet 12.
  • the laminated reconstituted tobacco sheet 1 is used as a tobacco filler for filling the inside of the wrapping paper of a tobacco rod of a non-combustion heating-type smoking article.
  • the laminated reconstituted tobacco sheet 1 is cut into various shapes such as fine cut, fine granules, flakes, or strips, and subsequently filled, as a tobacco filler, into the inside of wrapping paper to thereby form a tobacco rod.
  • the laminated reconstituted tobacco sheet 1 is not limited to the above-described shapes and may be folded into a gathering shape and subsequently filled into the inside of the wrapping paper of a tobacco rod.
  • the laminated reconstituted tobacco sheet 1 may be processed such that, in its surface, a plurality of grooves extending in the longitudinal direction are formed at constant intervals by laser processing, for example. Subsequently, the laminated reconstituted tobacco sheet 1 may be rolled into a cylindrical shape such that the grooves formed in the surface extend in the axial direction of the tobacco rod, and a plurality of such cylinders may be piled to form a plurality of layers in the inside of the wrapping paper of the tobacco rod of a non-combustion heating-type smoking article.
  • Such a tobacco paper sheet 11 is a reconstituted tobacco sheet obtained such that a tobacco raw material is extracted with water and separated into a water-based tobacco extract and an insoluble tobacco residue, the insoluble tobacco residue is mixed with pulp (cellulose fibers) and subjected to papermaking to provide a base sheet, and subsequently the water-based extract is added to the base sheet.
  • the slurry sheet 12 is a reconstituted tobacco sheet obtained such that a slurry raw material at least containing a tobacco raw material, pulp, water, and an aerosol-source material is spread into a sheet shape over a support, and dried.
  • Fig. 3 is an explanatory view illustrating a method for producing the tobacco paper sheet 11 according to Embodiment 1.
  • a tobacco raw material containing, for example, tobacco midribs, tobacco laminae, shredded tobacco, and tobacco fine powder is extracted with water (extraction step).
  • the tobacco raw material is mixed with an amount of water 10 times the amount of the tobacco raw material, and, under stirring, heated at a predetermined temperature for a predetermined time to obtain a mixture.
  • Step S202 the mixture obtained in the extraction step is squeezed with, for example, a screw press dehydrator, to achieve separation into a water-based tobacco extract (liquid) and an insoluble tobacco residue (solid) (separation step).
  • Step S203 to the insoluble tobacco residue obtained in the separation step, water and pulp (cellulose fibers) are added, and the insoluble tobacco residue is refined with, for example, a refiner, so as to adjust fiber length or cause fibrillation of the fibers to thereby achieve fiberization (refining step).
  • Step S204 the insoluble tobacco residue and pulp fiberized in the refining step are processed with a paper machine into a sheet shape, and dried to obtain a base sheet (papermaking step).
  • Step S205 to the base sheet, an addition solution containing a concentrated solution of the water-based tobacco extract obtained in the separation step, and an aerosol-source material such as glycerol or propylene glycol is added (flavoring step).
  • the concentrated solution of the water-based tobacco extract added to the base sheet in the flavoring step can be obtained by using, for example, an evaporator, to concentrate the water-based tobacco extract.
  • Step S206 the flavored base sheet obtained in the flavoring step is dried (drying step).
  • the tobacco paper sheet 11 in this embodiment has an aerosol-source material content adjusted to be 12 to 25 wt%.
  • the tobacco paper sheet 11 has a moisture content adjusted to be in a range of 12 to 25 wt%.
  • the aerosol-source material content is set to 12 wt% or more, the resultant tobacco paper sheet 11 can supply a necessary and sufficient amount of aerosol.
  • the aerosol-source material content is set to 25 wt% or less, the aerosol-source material can be prevented from being supplied, to the base sheet, in an excessively large amount beyond the capacity of holding the aerosol-source material in the base sheet. This prevents, for example, the surface of the base sheet from becoming sticky due to the aerosol-source material.
  • FIG. 4 is an explanatory view illustrating the method for producing the tobacco slurry sheet 12 according to Embodiment 1. As illustrated in Fig.
  • a tobacco raw material containing, for example, tobacco midribs, tobacco laminae, shredded tobacco, and tobacco fine powder is pulverized, and subsequently mixed with small amounts of a binder (binding agent) and a reinforcing agent (such as defibrated pulp) and predetermined amounts of an aerosol-source material (such as glycerol or propylene glycol) and water within, for example, a stirring tank, to thereby obtain a slurry (suspension) (slurry obtaining step).
  • a binder binder
  • the binder include guar gum, xanthan gum, and CMC (methylol cellulose).
  • Step S302 the slurry obtained in the slurry obtaining step is cast (spread) over, for example, a steel belt (support), into a sheet shape, to thereby obtain a slurry web (casting step).
  • Step S303 the sheet-shaped slurry web spread to the sheet shape is dried (drying step).
  • the steps having been described so far provide the tobacco slurry sheet 12.
  • the tobacco slurry sheet 12 in this embodiment has an aerosol-source material content adjusted to be 12 to 65 wt%.
  • the tobacco slurry sheet 12 has a moisture content adjusted to be in a range of 12 to 25 wt%.
  • the resultant tobacco slurry sheet 12 can supply a necessary and sufficient amount of aerosol.
  • the aerosol-source material content is set to 65 wt% or less, the aerosol-source material can be prevented from being supplied, to the tobacco slurry sheet 12, in an excessively large amount beyond the capacity of holding the aerosol-source material in the tobacco slurry sheet 12.
  • the surface of the tobacco slurry sheet 12 becomes sticky due to the aerosol-source material to cause accidental adhesion during storage.
  • the tobacco slurry sheet 12 has higher capacity of holding the aerosol-source material than the tobacco paper sheet 11.
  • the tobacco slurry sheet 12 has higher aerosol-source material content than the tobacco paper sheet 11.
  • the tobacco slurry sheet 12 has, due to the characteristics of the production steps, a low degree of intertwinement of pulp fibers, and hence has a feature of having lower mechanical strength (such as tensile strength or breaking strength) than the tobacco paper sheet 11.
  • the tobacco paper sheet 11 has, as described above, lower capacity for containing the aerosol-source material than the tobacco slurry sheet 12, but has a higher degree of intertwinement of pulp fibers, and hence has a feature of having higher mechanical strength (such as tensile strength or breaking strength) than the tobacco slurry sheet 12.
  • the laminated reconstituted tobacco sheet 1 has a laminated sheet structure in which the tobacco paper sheet 11 and the tobacco slurry sheet 12, which have different features as described above, are laminated together.
  • the method for producing the laminated reconstituted tobacco sheet 1 will be specifically described: in the tobacco sheet feeding step (in Fig. 1 , Step S101), two tobacco paper sheets 11 and one tobacco slurry sheet 12 produced by the methods having been described with reference to Fig. 3 and Fig. 4 are prepared.
  • the tobacco paper sheets 11 produced by the production method having been described with reference to Fig. 3 and the tobacco slurry sheet 12 produced by the production method having been described with reference to Fig. 4 may be wound into roll shapes such as bobbins.
  • Fig. 5 is an explanatory view illustrating the pressure-bonding step in the method for producing the laminated reconstituted tobacco sheet 1 in Embodiment 1.
  • the reconstituted tobacco sheets S1 to S3 being stacked such that, in the laminated reconstituted tobacco sheet 1, the tobacco slurry sheet 12 forming the second reconstituted tobacco sheet S2 (intermediate layer) is sandwiched between the tobacco paper sheet 11 forming the first reconstituted tobacco sheet S1 (uppermost layer) and the tobacco paper sheet 11 forming the third reconstituted tobacco sheet S3 (lowermost layer), are continuously passed through a pressure roller 20, to thereby pressure-bond together the reconstituted tobacco sheets S1 to S3.
  • the pressure roller 20 includes at least a pair of roller members 21 and 22; between the pair of roller members 21 and 22, the reconstituted tobacco sheets S1 to S3 being stacked are continuously passed, so that the reconstituted tobacco sheets S1 to S3 are subjected to a compressive force in the layer direction (thickness direction).
  • the pair of roller members 21 and 22 are used to flatten the plurality of reconstituted tobacco sheets S1 to S3 being stacked, during which hydrogen bonds between the tobacco raw materials are utilized to achieve pressure-bonding together of the reconstituted tobacco sheets S1 to S3.
  • hydrogen bonds between the tobacco raw materials of the first reconstituted tobacco sheet S1 (tobacco paper sheet 11) and the second reconstituted tobacco sheet S2 (tobacco slurry sheet 12) are used to pressure-bond together the first reconstituted tobacco sheet S1 (tobacco paper sheet 11) and the second reconstituted tobacco sheet S2 (tobacco slurry sheet 12).
  • Hydrogen bonds between the tobacco raw materials of the third reconstituted tobacco sheet S3 (tobacco paper sheet 11) and the second reconstituted tobacco sheet S2 (tobacco slurry sheet 12) are used to pressure-bond together the third reconstituted tobacco sheet S3 (tobacco paper sheet 11) and the second reconstituted tobacco sheet S2 (tobacco slurry sheet 12).
  • Such a hydrogen bond is a noncovalent attractive interaction provided between a hydrogen atom covalently bonded to a highly electronegative atom (negative atom) and a lone electron-pair of, for example, N, O, S, F, or a ⁇ electron system positioned adjacent to the hydrogen atom.
  • the method for producing the laminated reconstituted tobacco sheet 1 according to this embodiment utilizes, in the pressure-bonding step, hydrogen bonds between the tobacco raw materials, to thereby achieve, without applying additional adhesive or binder, pressure-bonding together of the reconstituted tobacco sheets S1 to S3.
  • the pressure roller 20 (the pair of roller members 21 and 22) nips the reconstituted tobacco sheets S1 to S3 at a nip pressure set to be 200 to 1300 N/cm.
  • a nip pressure set to be 200 to 1300 N/cm.
  • the reconstituted tobacco sheets S1 to S3 can be pressure-bonded together with more certainty, and reconstituted tobacco sheets (in this embodiment, in the laminated reconstituted tobacco sheet 1, the first reconstituted tobacco sheet S1 forming the uppermost layer and the third reconstituted tobacco sheet S3 forming the lowermost layer) passing between the roller members 21 and 22 in the pressure roller 20 can be suitably prevented from adhering to the roller members 21 and 22.
  • the roller clearance RC is set to be 20 to 80% of the total thickness of the plurality of reconstituted tobacco sheets S1 to S3 passed through the pressure roller 20 (between the pair of roller members 21 and 22) in the pressure-bonding step.
  • the roller clearance RC is set to be in such a preferred range, the above-described problems are less likely to occur.
  • the reconstituted tobacco sheets S1 to S3 can be smoothly sent into between the pair of roller members 21 and 22, and occurrence of wrinkling, breakage, and the like of the reconstituted tobacco sheets S1 to S3 can be suitably prevented.
  • the reconstituted tobacco sheets S1 to S3 are pressure-bonded together at sheet temperatures controlled to be ordinary temperature to 80°.
  • the reconstituted tobacco sheets S1 to S3 may have sheet temperatures controlled to be in a range of 20 to 80°C.
  • the above-described problems can be suitably prevented.
  • the reconstituted tobacco sheets S1 to S3 can be prevented from adhering to the pair of roller members 21 and 22, the reconstituted tobacco sheets S1 to S3 can be suitably pressure-bonded together.
  • the reconstituted tobacco sheets S 1 to S3 fed in the sheet feeding step each have a moisture content adjusted to be in a range of 12 to 25 wt%.
  • the reconstituted tobacco sheets S1 to S3 pressure-bonded together in the pressure-bonding step are each provided to have a moisture content in the above-described range, while the first reconstituted tobacco sheet S1 or the third reconstituted tobacco sheet S3 is prevented from adhering to the pair of roller members 21 and 22 in the pressure roller 20, hydrogen bonds between the tobacco raw materials of the reconstituted tobacco sheets S1 to S3 are easily formed to thereby suitably pressure-bond together the sheets.
  • the reconstituted tobacco sheets S1 to S3 have an excessively high moisture content, the tobacco raw materials tend to undergo putrefaction or deterioration, for example; when the moisture content is excessively low, the sheets may have high rigidity and tend to fragment.
  • the reconstituted tobacco sheets S1 to S3 are each provided to have a moisture content in the above-described range of 12 to 25 wt% to thereby suitably prevent the above-described problems.
  • a plurality of reconstituted tobacco sheets S1 to S3 are pressure-bonded together to provide the laminated reconstituted tobacco sheet 1, to thereby achieve an increase in the basis weight of the laminated reconstituted tobacco sheet 1.
  • This facilitates an increase in the aerosol-source material content per unit area of the laminated reconstituted tobacco sheet 1.
  • a non-combustion heating-type smoking article using the laminated reconstituted tobacco sheet 1 as the tobacco filler in the tobacco rod is provided, during smoking of the non-combustion heating-type smoking article, a sufficient delivery amount of generated aerosol is ensured, to enrich smoking experience.
  • At least one of the plurality of reconstituted tobacco sheets S1 to S3 pressure-bonded together in the pressure-bonding step is a tobacco paper sheet, which ensures, in the laminated reconstituted tobacco sheet 1, sufficient mechanical strength (such as tensile strength or breaking strength).
  • a plurality of reconstituted tobacco sheets in the pressure-bonding step, can be pressure-bonded together without applying additional adhesive or binder.
  • a plurality of reconstituted tobacco sheets are bonded together with a water-insoluble adhesive, from the viewpoint of preventing generation of off-flavor or off-odor during smoking of the non-combustion heating-type smoking article, it is difficult to use a large amount of water-insoluble adhesive.
  • the resultant reconstituted tobacco sheets have increased moisture content, so that a re-drying step may become necessary.
  • a plurality of reconstituted tobacco sheets can be pressure-bonded together utilizing hydrogen bonds between tobacco raw materials, so that occurrence of the above-described problems can be prevented.
  • the number of sheets stacked can be increased, to thereby ensure a sufficient aerosol-source material content per unit area of the laminated reconstituted tobacco sheet 1.
  • the thickness of the base sheets can be set to an appropriate thickness such that, at the time of adding, in the flavoring step, the concentrated solution of the water-based tobacco extract or the aerosol-source material to the base sheets, the addition solution containing the concentrated solution of the water-based tobacco extract and the like permeates the base sheets uniformly in the thickness direction within the time determined by, for example, production conditions of the production apparatus (actual apparatus).
  • the tobacco paper sheets 11 serving as constituent materials of the laminated reconstituted tobacco sheet 1 have excellent production suitability. Therefore, the production method according to this embodiment provides the laminated reconstituted tobacco sheet 1 that has high production suitability and high mechanical strength, and ensures a sufficient aerosol-source material content per unit area.
  • the tobacco slurry sheet 12 has high capacity for holding the aerosol-source material, and hence can contain and hold a larger amount of aerosol-source material.
  • the tobacco slurry sheet 12 having high capacity for containing the aerosol-source material and the tobacco paper sheet 11 having high mechanical strength are combined together as a laminated structure to form the laminated reconstituted tobacco sheet 1, so that, in the laminated reconstituted tobacco sheet 1, mechanical strength is ensured and increased aerosol-source material content is achieved.
  • the first reconstituted tobacco sheet S1 positioned in the uppermost layer and the third reconstituted tobacco sheet S3 positioned in the lowermost layer are formed of the tobacco paper sheets 11, and the second reconstituted tobacco sheet S2 positioned in the intermediate layer is formed of the tobacco slurry sheet 12.
  • the tobacco slurry sheet 12 has a higher aerosol-source material content than the tobacco paper sheets 11, and tends to have a stickier surface than the tobacco paper sheets 11.
  • the tobacco slurry sheet 12 is sandwiched between the tobacco paper sheets 11 to form the laminated reconstituted tobacco sheet 1 having outer layers formed of the tobacco paper sheets 11, to thereby prevent the laminated reconstituted tobacco sheet 1 from having a sticky surface.
  • the pressure roller 20 the pair of roller members 21 and 22
  • adhesion of the reconstituted tobacco sheets to the roller members 21 and 22 and wrinkling, breakage, and the like of the reconstituted tobacco sheets can be more suitably prevented.
  • the outer layers of the laminated reconstituted tobacco sheet 1 are formed of the tobacco paper sheets 11 having high mechanical strength, and the tobacco slurry sheet 12 having lower mechanical strength than the tobacco paper sheets 11 is disposed in the intermediate layer of the laminated reconstituted tobacco sheet 1, to thereby facilitate post-production cutting of the laminated reconstituted tobacco sheet 1 into various shapes such as fine cut, fine granules, flakes, or strips, and wrapping using a wrapping machine. More specifically, the laminated reconstituted tobacco sheet 1 employing the above-described laminate structure has increased mechanical strength to thereby achieve prevention of unintentional breakage or fragmentation, to provide improved cutting suitability.
  • the outer layers of the laminated reconstituted tobacco sheet 1 are formed of the tobacco paper sheets 11, so that the surface of the laminated reconstituted tobacco sheet 1 is prevented from becoming sticky, and hence improved slidability is achieved in the wrapping unit and the raw material can be smoothly conveyed. This results in improved machinability in the wrapping machine for wrapping the laminated reconstituted tobacco sheet 1.
  • Fig. 6 is an explanatory view illustrating the pressure-bonding step in the method for producing the laminated reconstituted tobacco sheet 1 according to Modification 1.
  • the method for producing the laminated reconstituted tobacco sheet 1 according to this embodiment as long as at least one of a plurality of reconstituted tobacco sheets is a tobacco paper sheet, and the reconstituted tobacco sheets being stacked are continuously passed through a pressure roller to thereby pressure-bond together the sheets, the number of the reconstituted tobacco sheets stacked is not particularly limited.
  • the laminated reconstituted tobacco sheet 1 may include a single tobacco paper sheet.
  • the laminated reconstituted tobacco sheet 1 has a bilayer structure in which a single tobacco paper sheet 11 and a single tobacco slurry sheet 12 are stacked and pressure-bonded together.
  • the laminated reconstituted tobacco sheet 1 can also be formed so as to have a laminate structure of a combination of the tobacco slurry sheet 12 having high capacity for containing the aerosol-source material and the tobacco paper sheet 11 having high mechanical strength, to thereby achieve suitable increase in the mechanical strength and the capacity for containing the aerosol-source material of the laminated reconstituted tobacco sheet 1.
  • the laminated reconstituted tobacco sheet 1 may be formed by pressure-bonding together a plurality of tobacco paper sheets 11.
  • Fig. 7 is an explanatory view illustrating the pressure-bonding step in the method for producing the laminated reconstituted tobacco sheet 1 according to Modification 2.
  • Modification 2 illustrated in Fig. 7 four tobacco paper sheets 11 being stacked are passed through the pressure roller 20 (the pair of roller members 21 and 22) to thereby be pressure-bonded together.
  • This Modification provides the laminated reconstituted tobacco sheet 1 having very high mechanical strength.
  • the number of tobacco paper sheets 11 stacked may be adjusted in accordance with, for example, the desired mechanical strength or aerosol-source material content of the laminated reconstituted tobacco sheet 1.
  • Fig. 8 is an explanatory view illustrating the pressure-bonding step in the method for producing the laminated reconstituted tobacco sheet 1 according to Modification 3.
  • the laminated reconstituted tobacco sheet 1 according to Modification 3 has a trilayer structure in which a flavor-containing sheet 13 is sandwiched between the tobacco paper sheet 11 and the tobacco slurry sheet 12.
  • the tobacco paper sheet 11, the flavor-containing sheet 13, and the tobacco slurry sheet 12 being stacked are passed through the pressure roller 20 (the pair of roller members 21 and 22), to pressure-bond the sheets together.
  • the flavor-containing sheet 13 is a sheet material in which a flavor is covered with a polysaccharide gel not containing any gelling agent.
  • examples of the flavor contained in the flavor-containing sheet 13 include various flavors; for example, menthol can be used.
  • the flavor contained in the flavor-containing sheet 13 may have the form of liquid, powder, or granules.
  • examples of the covering agent for covering the flavor include the following polysaccharides: carrageenan (in Japanese, written in a few forms slightly different from each other) or agar extracted from red marine algae; locust bean gum (carob gum), which is galactomannan extracted from tree seeds; guar gum; tara gum; cassia gum; tamarind gum, which is extracted from resin seeds and has the structure of xyloglucan; psyllium seed gum, which is an acidic polysaccharide extracted from resin seeds and having a structure having xylan as the main chain and arabinose and the like as side chains; xanthan gum or gellan gum (in Japanese, gellan gum is written in a few forms slightly different from each other), which are metabolic polysaccharides of microorganisms; konjak-glucomannan, which is extracted from tuberous roots of konjak; and starch (encompassing products varying in raw material and solubility).
  • carrageenan in Japanese, written in a few forms slightly different from each other
  • the polysaccharide used as the covering agent for covering the flavor may be a composite of a combination of two or more components selected from the above-described polysaccharide group.
  • the method for preparing the flavor-containing sheet 13 is, for example, as follows. First, a polysaccharide (a mono-component or a composite) is dissolved in water under heating. The resultant aqueous solution is mixed with an emulsifying agent and a flavor in a liquid state (or a molten state) at a heating temperature of, for example, 60 to 90°C, and kneaded and emulsified. Subsequently, this emulsion kept in the emulsion state is cast onto a support, and water for dissolving the polysaccharide is evaporated to thereby prepare the flavor-containing sheet 13.
  • a polysaccharide a mono-component or a composite
  • the laminated reconstituted tobacco sheet 1 including the flavor-containing sheet 13 prepared in the above-described manner can be used as the tobacco filler in the tobacco rod of a non-combustion heating-type smoking article, to thereby prepare a tobacco rod having a high flavor content for a non-combustion heating-type smoking article.
  • the polysaccharide can be caused to gel simply by heating, which eliminates the necessity of use of a gelling agent.
  • the flavor-containing sheet 13 does not contain a gelling agent such as a metal chloride, and has advantages of not generating undesirable decomposition products of the chloride in the aerosol during, for example, smoking of the non-combustion heating-type smoking article.
  • Modification 3 the order of stacking the tobacco paper sheet 11, the flavor-containing sheet 13, and the tobacco slurry sheet 12 can be appropriately changed.
  • the type and the number of reconstituted tobacco sheets laminated in the laminated reconstituted tobacco sheet 1 can be appropriately changed.
  • the method for producing a laminated reconstituted tobacco sheet according to the present invention is not limited to these.
  • the laminated reconstituted tobacco sheet 1 may include a tobacco rolled sheet, which is a reconstituted tobacco sheet produced by a rolling (roll) process.
  • the tobacco rolled sheet is a reconstituted tobacco sheet produced by, for example, mixing a tobacco raw material containing tobacco midribs, tobacco laminae, shredded tobacco, tobacco fine powder, and the like with a binder (binding agent), a reinforcing agent (such as defibrated pulp), an aerosol-source material (such as glycerol or propylene glycol), water, and the like within a stirring tank, subsequently rolling the mixture into a sheet shape using a pair of rollers or the like, and drying the mixture.
  • a binder binder
  • a reinforcing agent such as defibrated pulp
  • an aerosol-source material such as glycerol or propylene glycol

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)
EP19910361.5A 2019-01-18 2019-01-18 Procédé de production d'une feuille de tabac reconstitué laminée Withdrawn EP3912494A4 (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

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EP3912494A4 EP3912494A4 (fr) 2022-08-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024037932A1 (fr) * 2022-08-19 2024-02-22 Körber Technologies Gmbh Appareil et procédé de production d'un boudin à partir d'une bande multicouche plate, et article en forme de tige
WO2024042006A1 (fr) * 2022-08-23 2024-02-29 Körber Technologies Gmbh Procédé de production de tabac coupé à partir d'un matériau de feuille de tabac à utiliser dans des articles de tabac hnb, et article de tabac hnb

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022071563A1 (fr) * 2020-10-02 2022-04-07
WO2022071562A1 (fr) * 2020-10-02 2022-04-07 日本たばこ産業株式会社 Feuille de tabac
EP4223148A1 (fr) * 2020-10-02 2023-08-09 Japan Tobacco Inc. Feuille de tabac
JP7503661B2 (ja) 2020-12-24 2024-06-20 日本たばこ産業株式会社 たばこ組成物、たばこ含有セグメント、非燃焼加熱型香味吸引器具、及び非燃焼加熱型香味吸引システム
CN117677304A (zh) * 2021-04-27 2024-03-08 日本烟草产业株式会社 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
CN117677307A (zh) * 2021-04-27 2024-03-08 日本烟草产业株式会社 非燃烧加热型香味抽吸器用烟草片、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
CN117597034A (zh) * 2021-04-27 2024-02-23 日本烟草产业株式会社 非燃烧加热型香味抽吸器用烟草片、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
KR102605497B1 (ko) * 2021-04-29 2023-11-22 주식회사 케이티앤지 담배추출물시트, 이의 제조 방법 및 이를 포함하는 흡연물품
CN113439867B (zh) * 2021-07-02 2023-03-24 河南卷烟工业烟草薄片有限公司 干法和辊压法复合制备加热不燃烧卷烟再造烟叶的方法
WO2023282170A1 (fr) * 2021-07-07 2023-01-12 日本たばこ産業株式会社 Feuille de tabac pour inhalateurs d'arôme de type à chauffage sans combustion, son procédé de production, inhalateur d'arôme de type à chauffage sans combustion et système d'inhalation d'arôme de type à chauffage sans combustion
KR20240117123A (ko) 2021-12-14 2024-07-31 니뽄 다바코 산교 가부시키가이샤 담배 재료 및 그의 제조 방법, 및 담배 제품
WO2023145009A1 (fr) * 2022-01-28 2023-08-03 日本たばこ産業株式会社 Charge de tabac et appareil d'inhalation d'arôme de type à chauffage sans combustion

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497331A (en) * 1982-08-11 1985-02-05 Tmci, Inc. Tobacco product with high filling power and process of making same
JPH1170630A (ja) * 1997-07-03 1999-03-16 Oji Paper Co Ltd 積層体
DE102005006117B4 (de) 2005-02-10 2007-01-11 British American Tobacco (Germany) Gmbh Verarbeitung von Tabakmaterialien mit hohem Anteil an Tabakkleinteilen
TWI605764B (zh) 2012-05-31 2017-11-21 菲利浦莫里斯製品股份有限公司 混合桿、形成此種混合桿的方法、氣溶膠產生物品、氣溶膠產生基體及包含電操作氣溶膠產生設備及氣溶膠產生物品的系統
GB201505597D0 (en) * 2015-03-31 2015-05-13 British American Tobacco Co Article for use with apparatus for heating smokable material
WO2018235241A1 (fr) * 2017-06-22 2018-12-27 日本たばこ産業株式会社 Segment de génération d'arôme, article de génération d'arôme le comportant, et système d'inhalation d'arôme
CN108835707A (zh) * 2018-08-07 2018-11-20 湖北中烟工业有限责任公司 一种电磁感应加热卷烟及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024037932A1 (fr) * 2022-08-19 2024-02-22 Körber Technologies Gmbh Appareil et procédé de production d'un boudin à partir d'une bande multicouche plate, et article en forme de tige
WO2024042006A1 (fr) * 2022-08-23 2024-02-29 Körber Technologies Gmbh Procédé de production de tabac coupé à partir d'un matériau de feuille de tabac à utiliser dans des articles de tabac hnb, et article de tabac hnb

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JP7145238B2 (ja) 2022-09-30
WO2020148902A1 (fr) 2020-07-23
JPWO2020148902A1 (ja) 2021-09-09
EP3912494A4 (fr) 2022-08-31

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