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
  • 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
  • A24B15/18—Treatment of tobacco products or tobacco substitutes
  • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances

Definitions

• the present invention relates to a method for producing reconstituted tobacco sheets.
• the known methods for manufacturing reconstituted tobacco sheets include the rolling method, the casting (slurry) method, and the paper-making method. These manufacturing methods are selected according to the moisture content of the reconstituted tobacco raw material. Furthermore, each of these manufacturing methods is realized using a different reconstituted tobacco sheet manufacturing device.
• the rolling method is known to be particularly suitable for reconstituted tobacco raw materials that contain less than 50% moisture by volume.
• the kneaded material of the reconstituted tobacco raw materials is rolled and molded with rotating rollers, and after the thickness is adjusted, it is dried in a separately installed dryer.
• the cast (slurry) method is known to be particularly suitable for reconstituted tobacco raw materials that contain 50% or more moisture by volume.
• the fluid of the reconstituted tobacco raw materials is continuously spread onto a rotating drum or belt conveyor, and is smoothed to the desired thickness with a component called a blade, after which it is peeled off from the rotating drum or belt conveyor and dried in a separately installed dryer.
• the papermaking method is known to be particularly suitable for reconstituted tobacco raw materials that contain 80% or more moisture by volume.
• the fluid of the reconstituted tobacco raw materials is continuously spread on a liquid-permeable conveyor belt, and after the moisture is removed and the material is made to the desired thickness by compression rollers, it is dried in a separately installed dryer.
• a manufacturing device and method for reconstituted tobacco sheets that can obtain reconstituted tobacco sheets of uniform thickness through a simple manufacturing process, regardless of the moisture content of the reconstituted tobacco raw material (see Patent Document 1).
• One of the objectives of the present invention is to provide a new method for producing reconstituted pressure-molded tobacco sheets.
• the raw materials In order to extrude raw materials using an extruder, the raw materials need to have a moisture content suitable for the extrusion process. On the other hand, if the moisture content of the raw materials is such that they can be extruded using an extruder, they are highly viscous and difficult to handle outside the extruder. Therefore, when a second liquid raw material is added to the raw materials in the extruder, the moisture content of the raw materials can be adjusted in the extruder, and the amount of the first liquid raw material mixed in the mixer can be reduced. As a result, the raw materials can be prevented from becoming too viscous in the mixer, making it easier to handle the raw materials when they are supplied from the mixer to the extruder.
• the second liquid raw material may contain one or more selected from the group consisting of water, glycerin, propylene glycol, a binder solution, and a liquid flavoring.
• the forming process may include a process of extruding the raw material mixed in the second process using an extruder, and a process of forming the raw material extruded from the extruder into a sheet using at least a pair of rolling rollers facing each other in the vertical direction.
• a method for producing a reconstituted pressure-molded tobacco sheet includes a first step of mixing water and a binder in a mixer to swell the binder, a second step of mixing a first liquid raw material and a powder raw material containing at least tobacco in the mixer after the first step with the swollen binder, and a molding step of molding the raw material mixed in the second step into a pressure-molded sheet.
• the second step may include placing the tobacco and the additive separately in a mixer and mixing them with the swollen binder.
• the first liquid raw material may include an aerosol source and an additive.
• the second step may include placing the first liquid raw material in a mixer before the powder raw material and mixing it with the swollen binder.
• the above manufacturing method may include a step of supplying the raw material mixed in the second step to an extruder, and a step of further adding a second liquid raw material to the raw material supplied to the extruder.
• the forming process may include a process of extruding the raw material mixed in the second process using an extruder, and a process of passing the raw material extruded from the extruder between two or more rolling rollers that are horizontally adjacent to each other to form the raw material into a sheet.
• a method for producing a reconstituted pressure-molded tobacco sheet includes a mixing step of mixing a powdered raw material containing at least tobacco and a first liquid raw material in a mixer, a step of supplying the raw material mixed in the mixing step to an extruder, a step of further adding a second liquid raw material to the raw material supplied to the extruder, and a molding step of molding the raw material extruded from the extruder into a pressure-molded sheet.
• two or more types of powdered raw materials are mixed in the first step before the powdered raw materials are mixed with the first liquid raw material, so that the powdered raw materials can be mixed thoroughly.
• the second step may include placing the first liquid raw material, which is formed by premixing an aerosol source, water, and an additive, into the mixer.
• the mixing process may include a first process of putting a first liquid raw material into a mixer, and a second process of putting a powdered raw material into the mixer and mixing it with the first liquid raw material after the first process.
• the second step may include placing the tobacco, binder, and additives separately in a mixer and mixing them with the first liquid raw material.
• each powdered raw material is mixed with the first liquid raw material separately, which further prevents the powdered raw materials from forming lumps, allowing the raw materials to be mixed more uniformly.
• each powdered raw material is mixed with a swollen binder separately, which further prevents the powdered raw materials from forming lumps, allowing the raw materials to be mixed more uniformly.
• the second step may include separately placing the first liquid raw material and the powder raw material in a mixer and mixing them with the swollen binder.
• the first liquid raw material and the powder raw material are mixed separately, so the raw materials can be mixed more uniformly.
• the second step may include placing the first liquid raw material in a mixer before the powder raw material and mixing it with the swollen binder.
• the powdered raw material is added to the swollen binder and the first liquid raw material and mixed, which prevents the powdered raw material from forming lumps and allows the raw materials to be mixed more uniformly.
• the molding process may include a process of extruding the raw material into a die by the extruder, and a process of extruding the raw material from the die into a sheet shape.
• the forming process may include a process of extruding the raw material by the extruder, and a process of forming the raw material extruded from the extruder into a sheet by at least a pair of rolling rollers facing each other in the vertical direction.
• the forming process may include a process of extruding the raw material by the extruder, and a process of passing the raw material extruded from the extruder between two or more horizontally adjacent rolling rollers to form the raw material into a sheet.
• FIG. 1 is a schematic diagram of a production system for reconstituted pressure-formed tobacco sheets.
• 1 is a flow chart of a method for producing a reconstituted pressure-formed tobacco sheet in a mixer, extruder, and die according to a first embodiment.
• 4 is a flow chart of a method for producing a reconstituted pressure-formed tobacco sheet in a mixer, extruder, and die according to a second embodiment.
• 10 is a flow chart of a method for producing a reconstituted pressure-formed tobacco sheet in a mixer, extruder, and die according to a third embodiment.
• 10 is a flow chart of a method for producing a reconstituted pressure-formed tobacco sheet in a mixer, extruder, and die according to a fourth embodiment.
• the manufacturing system 100 for reconstituted pressure-molded tobacco sheets includes a first grinder 10, a second grinder 20, a classifier 30, a mixer 40, an extruder 50, a die 60, a take-up machine 70, and a dryer 80.
• tobacco is first crushed to a predetermined particle size in the first grinder 10.
• the crushed tobacco (tobacco particles) is then crushed to a smaller particle size in the second grinder 20.
• the tobacco crushed in the second grinder 20 is classified in the classifier 30.
• the tobacco excluded in the classifier 30 is crushed again in the first grinder 10 and the second grinder 20.
• the tobacco classified in the classifier 30 is mixed with, for example, an additive in the mixer 40, and the raw material for the reconstituted pressure-molded tobacco sheet is manufactured.
• the raw material is fed to the extruder 50, which extrudes it into the die 60.
• the die 60 extrudes the raw material into a sheet.
• the sheet-like raw material discharged from the die 60 is collected by the take-up machine 70 and dried in the downstream dryer 80. In this way, a reconstituted pressure-molded tobacco sheet can be produced.
• FIG. 2 is a flow chart of the method for producing a reconstituted pressure-molded tobacco sheet in the mixer 40, extruder 50, and die 60 according to the first embodiment.
• first, two or more types of powdered raw materials containing at least tobacco are placed in the mixer 40 and mixed (first process: step S201).
• This tobacco may be tobacco leaves of any shape, but is preferably tobacco particles classified in the classifier 30 shown in FIG. 1.
• the first liquid raw material is placed in the mixer 40 and mixed with two or more types of powder raw materials (second step: step S202).
• second step S202 This produces the raw material for the reconstituted pressure-molded tobacco sheet.
• the raw material mixed in the second step is molded into a pressure-molded sheet (molding step).
• the raw material mixed in the second step is supplied to the extruder 50 (step S203).
• This raw material may be highly sticky, so it may be supplied to the extruder 50 by a conveying device such as a belt conveyor.
• the raw material supplied to the extruder 50 is extruded into a sheet by the extruder 50.
• two or more types of powdered raw materials are mixed in the first process (step S201) before the powdered raw material and the first liquid raw material are mixed, so that the two or more types of powdered raw materials can be mixed sufficiently.
• the raw material supplied to the extruder 50 is extruded into the die 60 by the extruder 50 (step S205), and the raw material is extruded from the die 60 into a sheet (step S206).
• a second liquid raw material may be added to the raw material supplied to the extruder 50 (step S204).
• the raw material needs to have a moisture content suitable for the extrusion process.
• the moisture content of the raw material is such that it can be extruded with the extruder 50, the raw material is highly viscous, making it difficult to handle the raw material outside the extruder 50 (for example, transporting the raw material from the mixer 40 to the extruder 50).
• the moisture content of the raw material can be adjusted in the extruder 50, so that the amount of the first liquid raw material mixed in the mixer 40 can be reduced.
• the raw material can be prevented from becoming too viscous in the mixer 40, making it easier to handle the raw material when it is supplied from the mixer 40 to the extruder 50.
• the two or more types of powdered raw materials preferably contain tobacco, a binder, and an additive.
• an additive may also contain, for example, one or more selected from the group consisting of pulp, cellulose (crystallized cellulose or cellulose powder, etc.), calcium carbonate, menthol, and powdered flavoring.
• the inclusion of an additive in the powdered raw material can increase the strength of the tobacco sheet and impart flavor.
• the first liquid raw material preferably contains an aerosol source, water, and an additive.
• an aerosol source may contain, for example, one or more selected from the group consisting of glycerin and propylene glycol.
• the additive may contain, for example, a liquid flavoring. By including a liquid flavoring in the liquid raw material, a flavor can be imparted to the tobacco sheet.
• a first liquid raw material formed by premixing an aerosol source, water, and additives may be placed in the mixer 40.
• the aerosol source, water, and additives contained in the first liquid raw material are premixed, so that the powder raw material and the first liquid raw material can be mixed more uniformly.
• the manufacturing method shown in FIG. 2 may have a step of extruding the raw materials mixed in the second step (step S202) by the extruder 50, and a step of forming the raw materials extruded from the extruder 50 into a sheet shape by at least a pair of rolling rollers facing each other in the vertical direction. More specifically, the raw materials may be formed into a sheet shape stepwise by three sets of rolling rollers (i.e., six rolling rollers).
• steps S205-S206 the manufacturing method shown in FIG.
• step S202 may have a step of extruding the raw materials mixed in the second step (step S202) by the extruder 50, and a step of forming the raw materials extruded from the extruder 50 into a sheet shape by passing them between two or more rolling rollers adjacent in the horizontal direction. More specifically, the raw materials may be formed into a sheet shape stepwise by passing them between four rolling rollers adjacent in the horizontal direction.
• FIG. 3 is a flow chart of a method for producing a reconstituted pressure-molded tobacco sheet in a mixer 40, an extruder 50, and a die 60 according to the second embodiment.
• a first liquid raw material is placed in the mixer 40 (first step: step S301).
• a powder raw material containing at least tobacco is placed in the mixer 40 and mixed with the first liquid raw material (second step: step S302).
• This tobacco may be tobacco leaves of any shape, but is preferably tobacco particles classified in the classifier 30 shown in FIG. 1.
• the raw materials mixed in the second process are molded into a pressure-molded sheet (molding process).
• the raw materials mixed in the second process are supplied to the extruder 50 (step S303).
• This raw material may be highly viscous, and may be supplied to the extruder 50 by a conveying device such as a belt conveyor.
• the raw materials supplied to the extruder 50 are extruded into a sheet by the extruder 50.
• the powdered raw material is mixed with the first liquid raw material, so that the powdered raw material is prevented from forming lumps, and the raw materials can be mixed more uniformly.
• the raw materials supplied to the extruder 50 are extruded into the die 60 by the extruder 50 (step S305), and the raw materials are extruded into a sheet from the die 60 (step S306).
• a second liquid raw material may be added to the raw material supplied to the extruder 50 (step S304).
• the raw material needs to have a moisture content suitable for the extrusion process.
• the moisture content of the raw material is such that it can be extruded with the extruder 50, the raw material is highly viscous, making it difficult to handle the raw material outside the extruder 50 (for example, transporting the raw material from the mixer 40 to the extruder 50).
• the moisture content of the raw material can be adjusted in the extruder 50, so that the amount of the first liquid raw material mixed in the mixer 40 can be reduced.
• the raw material in the mixer 40 can be prevented from becoming too viscous, making it easier to handle the raw material when it is supplied from the mixer 40 to the extruder 50.
• This second liquid raw material may contain water.
• the amount of the first liquid raw material mixed in the mixer 40 can be reduced.
• the raw material can be prevented from becoming too viscous in the mixer 40, making it easier to handle the raw material when supplying it from the mixer 40 to the extruder 50.
• the second liquid raw material may contain one or more selected from the group consisting of water, glycerin, propylene glycol, a binder solution, and a liquid flavoring.
• the powdered raw material preferably contains tobacco, a binder, and an additive.
• an additive may also contain, for example, one or more selected from the group consisting of pulp, cellulose (crystallized cellulose or cellulose powder, etc.), calcium carbonate, menthol, and powdered flavoring.
• pulp cellulose (crystallized cellulose or cellulose powder, etc.)
• calcium carbonate calcium carbonate
• menthol menthol
• powdered flavoring for example, one or more selected from the group consisting of pulp, cellulose (crystallized cellulose or cellulose powder, etc.), calcium carbonate, menthol, and powdered flavoring.
• the inclusion of an additive in the powdered raw material can increase the strength of the tobacco sheet and impart flavor.
• the tobacco, binder, and additives may each be placed separately in the mixer 40 and mixed with the first liquid raw material.
• each powder raw material is mixed separately with the first liquid raw material, which further prevents the powder raw materials from forming lumps, allowing the raw materials to be mixed more uniformly.
• step S302 may have a step of extruding the raw material mixed in the second step (step S302) by the extruder 50, and a step of forming the raw material extruded from the extruder 50 into a sheet shape by passing it between two or more rolling rollers adjacent in the horizontal direction. More specifically, the raw material may be formed into a sheet shape stepwise by passing it between four rolling rollers adjacent in the horizontal direction.
• FIG. 4 is a flow chart of a method for producing a reconstituted pressure-molded tobacco sheet in a mixer 40, an extruder 50, and a die 60 according to the third embodiment.
• first, water and a binder are put into the mixer 40 and mixed to swell the binder (first step: step S401).
• second step: step S402 the first liquid raw material and a powder raw material containing at least tobacco are put into the mixer 40 and mixed with the swollen binder.
• the tobacco may be tobacco leaves of any shape, but is preferably tobacco particles classified in the classifier 30 shown in FIG. 1.
• the raw materials mixed in the second process are molded into a pressure-molded sheet (molding process). Specifically, the raw materials mixed in the second process are supplied to the extruder 50 (step S403). Since this raw material may be highly viscous, it may be supplied to the extruder 50 by a conveying machine such as a belt conveyor. The raw materials supplied to the extruder 50 are extruded into a sheet by the extruder 50. According to the manufacturing method shown in FIG. 4, the binder is mixed with water in advance to swell, and the binder function of the binder is generated, and the first liquid raw material and the powder raw material are mixed in this state, so that the viscosity of the raw materials can be increased.
• the raw materials are easily handled, and the raw materials are easily extruded by the extruder 50.
• the viscosity of the raw materials is increased, the strength of the tobacco sheet can be improved.
• the raw materials supplied to the extruder 50 are extruded into the die 60 by the extruder 50 (step S405), and the raw materials are extruded into a sheet from the die 60 (step S406).
• a second liquid raw material may be added to the raw material supplied to the extruder 50 (step S404).
• the raw material needs to have a moisture content suitable for the extrusion process.
• the moisture content of the raw material is such that it can be extruded with the extruder 50, the raw material is highly viscous, making it difficult to handle the raw material outside the extruder 50 (for example, transporting the raw material from the mixer 40 to the extruder 50).
• the moisture content of the raw material can be adjusted in the extruder 50, so that the amount of the first liquid raw material mixed in the mixer 40 can be reduced.
• the raw material in the mixer 40 can be prevented from becoming too viscous, making it easier to handle the raw material when it is supplied from the mixer 40 to the extruder 50.
• This second liquid raw material may contain water.
• the amount of the first liquid raw material mixed in the mixer 40 can be reduced.
• the raw material can be prevented from becoming too viscous in the mixer 40, making it easier to handle the raw material when supplying it from the mixer 40 to the extruder 50.
• the second liquid raw material may contain one or more selected from the group consisting of water, glycerin, propylene glycol, a binder solution, and a liquid flavoring.
• the powdered raw material preferably contains tobacco and additives.
• tobacco and additives by mixing the powdered raw material with the first liquid raw material in step S402, a tobacco raw material with increased viscosity due to the binder can be manufactured.
• the additives may also contain one or more selected from the group consisting of, for example, pulp, cellulose (crystallized cellulose or cellulose powder, etc.), calcium carbonate, menthol, and powdered flavoring.
• the inclusion of additives in the powdered raw material can increase the strength of the tobacco sheet and impart flavor.
• the first liquid raw material preferably contains an aerosol source and an additive.
• an aerosol source may contain, for example, one or more selected from the group consisting of glycerin and propylene glycol.
• the additive may also contain, for example, a liquid flavoring. The inclusion of the liquid flavoring in the liquid raw material can impart a flavor to the tobacco sheet.
• step S402 may have a step of extruding the raw material mixed in the second step (step S402) by the extruder 50, and a step of forming the raw material extruded from the extruder 50 into a sheet shape by passing it between two or more rolling rollers adjacent in the horizontal direction. More specifically, the raw material may be formed into a sheet shape stepwise by passing it between four rolling rollers adjacent in the horizontal direction.

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• 2022
  • 2022-12-26 CN CN202280102697.6A patent/CN120344160A/zh active Pending
  • 2022-12-26 KR KR1020257020289A patent/KR20250112278A/ko active Pending
  • 2022-12-26 JP JP2024566925A patent/JPWO2024142133A1/ja active Pending
  • 2022-12-26 WO PCT/JP2022/047813 patent/WO2024142133A1/ja active Application Filing

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