EP4397193A1 - Tobacco sheet for non-combustion heating-type flavor inhaler, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhalation system - Google Patents

Tobacco sheet for non-combustion heating-type flavor inhaler, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhalation system Download PDF

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Publication number
EP4397193A1
EP4397193A1 EP22864636.0A EP22864636A EP4397193A1 EP 4397193 A1 EP4397193 A1 EP 4397193A1 EP 22864636 A EP22864636 A EP 22864636A EP 4397193 A1 EP4397193 A1 EP 4397193A1
Authority
EP
European Patent Office
Prior art keywords
tobacco
mass
heating
sheet
tobacco filler
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.)
Pending
Application number
EP22864636.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Akihiro Koide
Kimitaka UCHII
Takahiro Matsuda
Ayaka Hashimoto
Kazuhiro Noda
Yuta YANAI
Hirotsugu WAKABAYASHI
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
Priority claimed from PCT/JP2021/032157 external-priority patent/WO2023032089A1/ja
Priority claimed from PCT/JP2021/032156 external-priority patent/WO2023032088A1/ja
Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP4397193A1 publication Critical patent/EP4397193A1/en
Pending legal-status Critical Current

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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
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/32—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by acyclic compounds
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01—Making cigarettes for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means

Definitions

  • the present invention relates to a tobacco sheet for non-combustion-heating-type flavor inhalators, a non-combustion-heating-type flavor inhalator, and a non-combustion-heating-type flavor inhalation system.
  • a flavor is produced by combusting a tobacco filler including leaf tobacco.
  • a non-combustion-heating-type flavor inhalator that produces a flavor by heating a flavor source, such as a tobacco sheet, instead of combusting the flavor source has been proposed as an alternative to the combustion-type flavor inhalators.
  • the temperature at which a non-combustion-heating-type flavor inhalator is heated is, for example, about 400°C or less, which is lower than the temperature at which a combustion-type flavor inhalator is combusted.
  • the present invention includes the following aspects.
  • a tobacco sheet for non-combustion-heating-type flavor inhalators according to this embodiment includes a tobacco powder.
  • the cumulative 90% particle size (D90) of the tobacco powder which is determined using a volume-basis particle size distribution measured by dry laser diffraction is 200 ⁇ m or more.
  • the content of the shaping agent in the tobacco sheet is preferably 0.1% to 15% by mass with the amount of the tobacco sheet being 100% by mass.
  • the above content of the shaping agent is 0.1% by mass or more, it becomes easy to form the mixed body of the raw materials into a sheet-like shape.
  • the above content of the shaping agent is 15% by mass or less, the amounts of the other materials used for achieving the properties required by the tobacco-containing segment of the non-combustion-heating-type flavor inhalator can be increased to sufficient degrees.
  • the content of the shaping agent is more preferably 0.2% to 13% by mass, is further preferably 0.5% to 12% by mass, and is particularly preferably 1% to 10% by mass.
  • the tobacco sheet according to this embodiment may further include a humectant in order to maintain quality.
  • a humectant examples include sugar alcohols, such as sorbitol, erythritol, xylitol, maltitol, lactitol, mannitol, and hydrogenated maltose starch syrup.
  • sugar alcohols such as sorbitol, erythritol, xylitol, maltitol, lactitol, mannitol, and hydrogenated maltose starch syrup.
  • the above humectants may be used alone or in combination of two or more.
  • the content of the humectant in the tobacco sheet is preferably 1% to 15% by mass with the amount of the tobacco sheet being 100% by mass.
  • the amounts of the other materials used for achieving the properties required by the tobacco-containing segment of the non-combustion-heating-type flavor inhalator can be increased to sufficient degrees.
  • the above content of the humectant is more preferably 2% to 12% by mass and is further preferably 3% to 10% by mass.
  • the above bulkiness is a value determined by shredding the tobacco sheet to a size of 0.8 mm x 9.5 mm, storing the shreds in a conditioning room at 22°C and 60% for 48 hours, and subsequently analyzing the shreds with "DD-60A" (product name, produced by Burghart Messtechnik GmbH).
  • D-60A product name, produced by Burghart Messtechnik GmbH.
  • 15 g of shreds of the tobacco sheet are charged into a cylindrical container having an inside diameter of 60 mm and compressed at a load of 3 kg for 30 seconds, and the volumetric capacity of the shreds of the tobacco sheet is measured subsequently.
  • the "tobacco sheet” is a member produced by forming a component constituting the tobacco sheet, such as a tobacco powder, into a sheet-like shape.
  • sheet used herein refers to a shape having a pair of principal surfaces parallel to each other and a side surface.
  • the length and width of the tobacco sheet are not limited and may be adjusted in accordance with the mode in which the tobacco sheet is charged.
  • the thickness of the tobacco sheet is not limited. In consideration of the balance between heat transfer efficiency and strength, the thickness of the tobacco sheet is preferably 100 to 1000 ⁇ m and is more preferably 150 to 600 ⁇ m.
  • the tobacco sheet according to this embodiment can be produced by a method known in the related art, such as a rolling method or a casting method. Details of the tobacco sheets produced by the above-described method are disclosed in " Encyclopedia of Tobacco, Tobacco Academic Studies Center, 2009.3.31 ".
  • Examples of the method for producing a tobacco sheet using a rolling method include a method including the following steps.
  • the surfaces of the reduction rollers may be heated or cooled depending on the intended purpose.
  • the rotational speed of the reduction rollers may be adjusted.
  • the intervals of the reduction rollers may be adjusted.
  • One or more reduction rollers may be used to produce a tobacco sheet having an intended basis weight.
  • Examples of the method for producing a tobacco sheet using a casting method include a method including the following steps.
  • the slurry prepared by mixing water, a tobacco powder, an aerosol generating agent, a shaping agent, and a pulp together may be irradiated with an ultraviolet ray or an X-ray in order to remove some components, such as nitrosamine.
  • a non-combustion-heating-type flavor inhalator includes a tobacco-containing segment that includes the tobacco sheet according to this embodiment and the like. Since the non-combustion-heating-type flavor inhalator according to this embodiment includes a tobacco-containing segment filled with the tobacco sheet according to this embodiment, which has high bulkiness, and the like, the total thermal capacity of the tobacco-containing segment can be reduced to a sufficient degree and the tobacco sheet charged in the tobacco-containing segment can further contribute to aerosol generation.
  • Fig. 1 illustrates an example of the non-combustion-heating-type flavor inhalator according to this embodiment.
  • the non-combustion-heating-type flavor inhalator 1 illustrated in Fig. 1 includes a tobacco-containing segment 2 filled with the tobacco sheet according to this embodiment and the like, a tubular cooling segment 3 having perforations 8 formed on the periphery thereof, a center-hole segment 4, and a filter segment 5.
  • the non-combustion-heating-type flavor inhalator according to this embodiment may include segments other than any of the tobacco-containing segment, the cooling segment, the center-hole segment, and the filter segment.
  • the length of the non-combustion-heating-type flavor inhalator according to this embodiment in the axial direction is preferably, but not limited to, 40 mm or more and 90 mm or less, is more preferably 50 mm or more and 75 mm or less, and is further preferably 50 mm or more and 60 mm or less.
  • the perimeter of the non-combustion-heating-type flavor inhalator is preferably 16 mm or more and 25 mm or less, is more preferably 20 mm or more and 24 mm or less, and is further preferably 21 mm or more and 23 mm or less.
  • the tobacco-containing segment may have a length of 20 mm
  • the cooling segment may have a length of 20 mm
  • the center-hole segment may have a length of 8 mm
  • the filter segment may have a length of 7 mm.
  • the length of the filter segment may be selected so as to fall within the range of 4 mm or more and 10 mm or less.
  • the airflow resistance of the filter segment per segment may be selected so as to fall within the range of 15 mmH 2 O/seg or more and 60 mmH 2 O/seg or less.
  • the lengths of the above segments may be changed appropriately in accordance with manufacturability, intended qualities, and the like.
  • only the filter segment may be arranged downstream of the cooling segment without using the center-hole segment. Even in such a case, the performance of the non-combustion-heating-type flavor inhalator can be achieved.
  • the tobacco-containing segment 2 includes the tobacco sheet according to this embodiment and a wrapping paper (hereinafter, also referred to as "wrapper") in which the tobacco sheet and the like is charged.
  • the method for charging the tobacco sheet and the like into the wrapping paper is not limited.
  • the tobacco sheet and the like may be wrapped with the wrapper.
  • the tobacco sheet and the like may be charged into a tubular wrapper.
  • the shape of the tobacco sheet has a longitudinal direction, such as a rectangular shape
  • the tobacco sheet and the like may be charged into the wrapper such that the longitudinal direction of the tobacco sheet is not aligned in a specific direction inside the wrapper.
  • the tobacco sheet may be charged into the wrapper so as to be aligned in the axial direction of the tobacco-containing segment 2 or a direction perpendicular to the above axial direction.
  • the tobacco sheet may be incorporated into the wrapper while stacked on top of one another, wound in a spiral manner, or folded in an accordion manner.
  • the cooling segment 3 includes a tubular member 7 as illustrated in Fig. 1 .
  • the tubular member 7 may be, for example, a paper tube prepared by forming a paperboard into a cylindrical shape.
  • the amount of the outside air introduced through the perforations 8 is preferably 85% by volume or less and is more preferably 80% by volume or less of the total volume of the gas inhaled by the user.
  • the proportion of the above outside air is 85% by volume or less, flavor degradation caused by dilution with the outside air can be limited in a sufficient manner.
  • the above proportion is also referred to as "ventilation ratio".
  • the lower limit for the ventilation ratio is preferably 55% by volume or more and is more preferably 60% by volume or more in consideration of cooling performance.
  • the cooling segment may be a segment that includes a wrinkled, pleated, gathered, or folded sheet composed of an appropriate material.
  • the cross section profile of such an element may appear as randomly oriented channels.
  • the cooling segment may include a bundle of tubes that extend in the longitudinal direction.
  • Such a cooling segment can be formed by, for example, wrapping a pleated, gathered, or folded sheet material with a wrapping paper.
  • the length of the cooling segment in the axial direction may be, for example, 7 mm or more and 28 mm or less and may be, for example, 18 mm.
  • the cross-sectional shape of the cooling segment in the axial direction may be substantially circular.
  • the diameter of the cooling segment may be, for example, 5 mm or more and 10 mm or less and may be, for example, about 7 mm.
  • the center-hole segment is constituted by a filler layer having one or a plurality of hollow parts and an inner plug wrapper (i.e., inner wrapping paper) that covers the filler layer.
  • an inner plug wrapper i.e., inner wrapping paper
  • a center-hole segment 4 is constituted by a second filler layer 9 having a hollow part and a second inner plug wrapper 10 that covers the second filler layer 9.
  • the center-hole segment 4 increases the strength of the mouthpiece segment 6.
  • the second filler layer 9 may be, for example, a rod having an inside diameter of 1.0 mm or more and 5.0 mm or less which is filled with cellulose acetate fibers at a high density and hardened by the addition of 6% by mass or more and 20% by mass or less of a plasticizer including triacetin relative to the mass of the cellulose acetate. Since the pack density of fibers in the second filler layer 9 is high, the air and aerosol flow through only the hollow part upon inhalation and hardly flow inside the second filler layer 9. Since the second filler layer 9 disposed inside the center-hole segment 4 is a layer filled with fibers, the user is unlikely to sense incongruity when touching the outside portion of the center-hole segment during use.
  • the center-hole segment 4 does not necessarily include the second inner plug wrapper 10; alternatively, thermoforming may be performed to maintain the shape of the center-hole segment 4.
  • the structure of the filter segment 5 is not limited.
  • the filter segment 5 may be constituted by one or a plurality of filler layers.
  • the outside portion of the filler layer may be wrapped with one or a plurality of wrapping papers.
  • the airflow resistance of the filter segment 5 per segment may be changed appropriately in accordance with, for example, the amount and type of the filler charged in the filter segment 5.
  • the above airflow resistance can be increased by increasing the amount of the cellulose acetate fiber charged in the filter segment 5.
  • the pack density of the cellulose acetate fiber may be 0.13 to 0.18 g/cm 3 .
  • the above airflow resistance is a value measured with an airflow resistance gage (product name: "SODIMAX", produced by SODIM).
  • the perimeter of the filter segment 5 is preferably, but not limited to, 16 to 25 mm, is more preferably 20 to 24 mm, and is further preferably 21 to 23 mm.
  • the length of the filter segment 5 in the axial direction may be selected so as to fall within the range of 4 to 10 mm such that the airflow resistance thereof is 15 to 60 mmH 2 O/seg.
  • the length of the filter segment 5 in the axial direction is preferably 5 to 9 mm and is more preferably 6 to 8 mm.
  • the shape of the cross section of the filter segment 5 is not limited and may be, for example, circular, oval, polygonal, or the like.
  • a destructible capsule or flavoring agent bead that includes a flavoring agent or a flavoring agent may be added directly to the filter segment 5.
  • the center-hole segment 4 and the filter segment 5 can be connected to each other with an outer plug wrapper (i.e., outer wrapping paper) 11.
  • the outer plug wrapper 11 may be, for example, a cylindrical paper.
  • the tobacco-containing segment 2, the cooling segment 3, and the center-hole segment 4 and the filter segment 5 that have been connected to each other can be connected to one another with a mouthpiece lining paper 12.
  • the above segments can be connected to one another by, for example, applying a paste, such as a vinyl acetate paste, onto the inside surface of the mouthpiece lining paper 12 and winding the mouthpiece lining paper 12 around the three segments.
  • a paste such as a vinyl acetate paste
  • a non-combustion-heating-type flavor inhalation system includes the non-combustion-heating-type flavor inhalator according to this embodiment and a heating apparatus that heats the tobacco-containing segment of the non-combustion-heating-type flavor inhalator.
  • the non-combustion-heating-type flavor inhalation system according to this embodiment may include a component other than the non-combustion-heating-type flavor inhalator according to this embodiment or the heating apparatus.
  • Fig. 2 illustrates an example of the non-combustion-heating-type flavor inhalation system according to this embodiment.
  • the non-combustion-heating-type flavor inhalation system illustrated in Fig. 2 includes a non-combustion-heating-type flavor inhalator 1 according to this embodiment and a heating apparatus 13 that heats the outside portion of the tobacco-containing segment of the non-combustion-heating-type flavor inhalator 1.
  • the heater 15 may be an electric resistance heater. In response to a command from the control unit 18, which is responsible for temperature control, electric power is fed from the battery unit 17 and the heater 15 is heated. The heat generated by the heater 15 is transferred to the tobacco-containing segment of the non-combustion-heating-type flavor inhalator 1 through the metal pipe 16, which has a high thermal conductivity.
  • a gap is present between the outer circumference of the non-combustion-heating-type flavor inhalator 1 and the inner circumference of the metal pipe 16 in Fig. 2(b) , which is a schematical diagram, a gap is desirably absent between the outer circumference of the non-combustion-heating-type flavor inhalator 1 and the inner circumference of the metal pipe 16 in reality for efficient heat transfer.
  • the heating apparatus 13 heats the outside portion of the tobacco-containing segment of the non-combustion-heating-type flavor inhalator 1, the heating apparatus 13 may heat the inside portion of the tobacco-containing segment.
  • the temperature at which heating is performed with the heating apparatus is not limited.
  • the above heating temperature is preferably 400°C or less, is more preferably 150°C or more and 400°C or less, and is further preferably 200°C or more and 350°C or less. Note that the above heating temperature is the temperature of a heater included in the heating apparatus.
  • the inventors of the present invention further found another issue that the user senses the heat of the aerosol or the heat of the mouthpiece end of the article upon inhalation because, in the non-combustion-heating-type flavor inhalator, the moisture included in the tobacco material and the vapor generated from the aerosol generating agent upon heating do not diffuse from the front end of the article unlike smoking articles, such as cigarettes. Accordingly, a tobacco sheet with which a non-combustion-heating-type flavor inhalator that reduces the likelihood of the user sensing the heat of the aerosol or the heat of the mouthpiece end of the article upon inhalation, that is excellent in terms of quality stability of the tobacco filler, and that further enhances the user satisfaction can be produced is described below as a first aspect.
  • a tobacco sheet with which a non-combustion-heating-type flavor inhalator that reduces the likelihood of the user sensing the heat of the aerosol or the heat of the mouthpiece end of the article upon inhalation and that enhances the feel of smoking can be produced is also described below as a second aspect.
  • the tobacco powder is a dry tobacco material.
  • the tobacco sheet includes an aerosol generating agent.
  • the moisture content in the tobacco sheet is more than 5% by mass and 7.5% by mass or less.
  • the sheet may include, but does not necessarily include, a component other than the dry tobacco material or the aerosol generating agent, and the aerosol generating agent may be referred to as "aerosol source”.
  • a sheet that includes a dry tobacco material, which serves as the tobacco powder, and an aerosol generating agent, wherein the moisture content is more than 5% by mass and 7.5% by mass or less is provided.
  • a material that includes a dry tobacco material, which serves as the tobacco powder, and an aerosol generating agent, wherein the moisture content is more than 5% by mass and 7.5% by mass or less is also referred to as "dry tobacco filler".
  • dry tobacco filler is also referred to as "dry tobacco filler”.
  • the shape of the "dry tobacco filler” is not limited, in this aspect, the dry tobacco filler is formed into a sheet by a common method.
  • the moisture content in the "dry tobacco filler” is more than 5% by mass and 7.5% by mass or less, is preferably 5.1% to 7.5% by mass, is more preferably 5.1% to 7.0% by mass, and is further preferably 5.5% to 7.0% by mass.
  • the "moisture content in the dry tobacco filler” is the proportion (% by mass) of the mass of moisture to the total mass of the dry tobacco filler.
  • the "tobacco molded body” is a sheet.
  • the sheet can be formed by a method known in the related art, such as sheet making, casting, or rolling.
  • the tobacco molded body may include a humectant in order to adjust moisture content.
  • the humectant also serves as an aerosol generating agent.
  • the humectant may be a polyhydric alcohol, and examples thereof include glycerine, propylene glycol, sorbitol, xylitol, and erythritol.
  • the above polyhydric alcohols can be used alone or in combination of two or more.
  • the content of the humectant is commonly 5% to 15% by mass of the total mass of the tobacco molded body.
  • the drying treatment can be performed using any drying method with which a dry tobacco filler having the intended moisture content can be prepared.
  • the drying treatment can be performed using microwave heating.
  • microwave heating the moisture content in the tobacco filler can be adjusted by changing the amount of time during which heating is performed ( Fig. 8 ).
  • Microwave heating is typically performed with a microwave oven.
  • the amount of heating time that can be applied to 5 g of an untreated tobacco filler is, for example, 30 to 40 seconds ( Fig. 8 ).
  • the surface temperature of the tobacco filler is a temperature measured with a thermographic camera "FLIR-C2" produced by FLIR System Inc.
  • tobacco filler is used when a tobacco filler that has not been dried (i.e., untreated tobacco filler), a tobacco filler that is being dried, and a tobacco filler that has been dried are collectively referred to without distinction.
  • a dry tobacco filler produced by the above-described method is provided.
  • the dry tobacco filler prepared by the above-described method is formed into a sheet for non-combustion-heating-type flavor inhalators by a common method.
  • a flavor inhalation system 100 includes a flavor inhalator 1 that includes a sheet formed of the above-described dry tobacco filler, which includes a dry tobacco material and an aerosol generating agent, and an aerosol generation apparatus 120 that heats the flavor inhalator 1 in order to atomize the aerosol generating agent and cause a flavor component to be released from the dry tobacco material.
  • the flavor inhalator 1 is an exchangeable cartridge and has a pillar shape extending in one direction.
  • the flavor inhalator 1 generates an aerosol including a flavor component when the flavor inhalator 1 is heated while inserted in the aerosol generation apparatus 120.
  • the aerosol generation apparatus 120 may include a lid 170 that covers the end of the airflow path 160 at which the airflow path 160 is communicated with the outside air.
  • the lid 170 allows switchover between the state where the lid 170 covers the end of the airflow path 160 at which the airflow path 160 is communicated with the outside air and the state where the above end is exposed.
  • the aerosol generation apparatus 120 includes a battery B, a control unit 20, and a heater 30.
  • the battery B stores the electric power that is to be used in the aerosol generation apparatus 120.
  • the battery B may be a chargeable and dischargeable secondary battery.
  • the battery B may be, for example, a lithium ion battery.
  • the heat-shrinkable tube is a tube that shrinks in the radial direction when heated and is composed of a thermoplastic elastomer or the like.
  • the heater 30 is pressed against the inner cylinder member 132. This increases the adhesion between the heater 30 and the inner cylinder member 132 and consequently enhances the transfer of heat from the heater 30 to the flavor inhalator 1 through the inner cylinder member 132.
  • the control unit 20 Upon detecting a startup request from the user, the control unit 20 starts feeding electric power from the battery B to the heater 30.
  • the startup request from the user can be made by, for example, the user pressing a button, operating a slider switch, or performing an inhalation action.
  • the startup request from the user may be made by pressing a push button 150.
  • the startup request from the user may be made by pressing the push button 150 while the lid 140 is opened.
  • the startup request from the user may be made upon detecting the inhalation action of the user.
  • the inhalation action of the user can be detected using, for example, the above-described temperature sensor.
  • the "dry tobacco filler” can be produced by placing an untreated tobacco filler together with a desiccant under a hermetically sealed condition (see ⁇ 2. Method for Producing Dry Tobacco Filler>).
  • the dry tobacco filler may be formed into a sheet and a flavor inhalator including the sheet may be placed on the market as a commodity.
  • the tobacco filler may be formed into a sheet and a flavor inhalator including the sheet may be placed on the market as a commodity. In the latter case, the tobacco filler becomes dried while the flavor inhalator including the sheet formed of the tobacco filler is placed on the market as a commodity and, consequently, the moisture content in the sheet reaches the intended level.
  • FIG. 6 illustrates an example of the cigarette pack.
  • Fig. 6 illustrates the state where the cigarette pack is closed.
  • Fig. 7 illustrates the state where the cigarette pack is opened.
  • a cigarette pack P4 includes a box P5 and a lid P6.
  • the box P5 includes a box main body P5a and an inner frame P5b.
  • the box P5 has an opening formed at the upper end.
  • the lid P6 is connected to the rear edge of the open end of the box P5 with an automatic hinge P7 being interposed therebetween.
  • the lid P6 is capable of moving rotationally around the automatic hinge P7 and enables the open end of the box P5 to be opened and closed. As illustrated in Fig.
  • the cigarette pack commonly further includes an inner pack (not illustrated in the drawing) disposed inside the box P5 and formed of an inner wrap paper with which a bundle of cigarettes is wrapped.
  • the cigarette pack commonly further includes a film packing material (not illustrated in the drawing) that is disposed outside the box P5 and includes a tear tape.
  • the "non-combustion-heating-type flavor inhalator” that is to be accommodated in the package is a flavor inhalator that includes the "untreated tobacco filler T3a" illustrated in Fig. 3 .
  • the "non-combustion-heating-type flavor inhalator” that is to be accommodated in the package may be the one commercially available as a tobacco stick for non-combustion-heating-type flavor inhalation systems or a flavor inhalator produced using a tobacco filler (e.g., having a moisture content of 10% to 15% by mass) prepared for existing non-combustion-heating-type flavor inhalation systems.
  • the number of the non-combustion-heating-type flavor inhalators that are to be accommodated in the package is at least one and, for example, 40 or less. In the case where the package is a cigarette pack, the number of the non-combustion-heating-type flavor inhalators that are to be accommodated in the package is commonly 10 to 20 and, for example, 20.
  • the "desiccant” may be a desiccant commonly used as a desiccant for foods or medicines and is, for example, a silica gel.
  • the desiccant is incorporated into the package in an amount necessary for the moisture content in the tobacco filler reaching an equilibrium moisture content of more than 5% by mass and 7.5% by mass or less.
  • the moisture content in the tobacco filler can be adjusted by changing the amount of desiccant.
  • the desiccant is a silica gel
  • for preparing a dry tobacco filler having an equilibrium moisture content of more than 5% by mass and 7.5% by mass or less using an untreated tobacco filler having a moisture content of about 14% by mass for example, 2 to 4 g of silica gel may be used relative to 5 g of the tobacco filler.
  • the moisture content in the sheet formed of the tobacco filler varies with time. Specifically, immediately after the non-combustion-heating-type flavor inhalator is charged into the package, the moisture content in the sheet is substantially the same as that in the sheet formed of the tobacco filler that has not been dried; for example, the moisture content in the tobacco filler included in the sheet is 10% to 15% by mass. Subsequently, with a lapse of time since the non-combustion-heating-type flavor inhalator is charged into the package, the sheet becomes gradually dried due to the action of the desiccant and the moisture content in the sheet is reduced accordingly. Finally, the moisture content in the tobacco filler included in the sheet reaches an equilibrium moisture content of more than 5% by mass and 7.5% by mass or less, preferably 5.1% to 7.5% by mass, and more preferably 5.5% to 7.0% by mass.
  • tobacco filler included in the above package product changes with time, a "tobacco filler that has not been dried", a “tobacco filler that is being dried”, and a “tobacco filler that has been dried” are collectively referred to as "tobacco filler”.
  • a non-combustion-heating-type flavor inhalator that reduces the likelihood of the user sensing the heat of an aerosol and the heat of the mouthpiece end of the article upon inhalation and that is excellent in terms of the quality stability of the tobacco filler can be provided.
  • a sheet that includes a dry tobacco material and an aerosol generating agent the content of which is less than 20% by mass, wherein the moisture content in the sheet is 3% to 5% by mass is provided.
  • the sheet may be included in the non-combustion-heating-type flavor inhalator.
  • the moisture content in the "dry tobacco filler” is 3.0% to 5.0% by mass, is preferably 3.5% to 5.0% by mass, and is more preferably 4.0% to 5.0% by mass.
  • the "moisture content in the dry tobacco filler” is the proportion (% by mass) of the mass of moisture to the total mass of the dry tobacco filler. Details of the dry tobacco filler are the same as those described in First Aspect, except moisture content.
  • the aerosol generating agent examples include glycerine, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
  • the aerosol generating agent is preferably a mixture of glycerine and propylene glycol.
  • the mass ratio between glycerine and propylene glycol is, for example, 80:20 to 97.5:2.5.
  • the above drying treatment may be performed by drying the untreated tobacco filler directly.
  • the tobacco rod may be dried.
  • the non-combustion-heating-type flavor inhalator may be dried.
  • the drying treatment may be performed such that the surface temperature of the tobacco filler is 90°C or less.
  • the drying treatment is preferably performed such that the surface temperature of the tobacco filler is normal temperature (i.e., 20°C) to 90°C.
  • the drying treatment is more preferably performed such that the surface temperature of the tobacco filler is 65°C or less.
  • the drying treatment is further preferably performed such that the surface temperature of the tobacco filler is normal temperature (i.e., 20°C) to 65°C. If the surface temperature of the tobacco filler is excessively high, the content of the aerosol generating agent in the tobacco filler may be reduced. If the surface temperature of the tobacco filler is excessively high, furthermore, cell membranes and cell walls of the tobacco material may become damaged. This increases the likelihood of a tobacco flavor component being released from the tobacco material and may increase an irritation felt by the user of the flavor inhalator upon inhalation to an excessive level.
  • the surface temperature of the tobacco filler is a temperature measured with a thermographic camera "FLIR-C2" produced by FLIR System Inc.
  • a dry tobacco filler prepared in the above-described manner can be used as a sheet included in the non-combustion-heating-type flavor inhalator.
  • the method for forming the sheet is the same as that described in First Aspect.
  • the packaged product according to this aspect is the same as that described in First Aspect, except that the moisture content in the tobacco filler is adjusted to reach an equilibrium moisture content of 3% to 5% by mass in the package.
  • the moisture content in the sheet formed of the tobacco filler varies with time. Specifically, immediately after the non-combustion-heating-type flavor inhalator is charged into the package, the moisture content in the sheet is substantially the same as that in the sheet formed of the tobacco filler that has not been dried; for example, the moisture content in the tobacco filler included in the sheet is 10% to 15% by mass. Subsequently, with a lapse of time since the non-combustion-heating-type flavor inhalator is charged into the package, the sheet becomes gradually dried due to the action of the desiccant and the moisture content in the sheet is reduced accordingly. Finally, the moisture content in the tobacco filler included in the sheet reaches an equilibrium moisture content of 3.0% to 5.0% by mass, preferably 3.5% to 5.0% by mass, and more preferably 4.0% to 5.0% by mass.
  • a non-combustion-heating-type flavor inhalator that reduces the likelihood of the user sensing the heat of an aerosol and the heat of the mouthpiece end of the article upon inhalation and that is improved in terms of the feel of smoking can be provided.
  • Tobacco lamina i.e., leaf tobacco
  • Hosokawa Micron ACM Hosokawa Micron ACM
  • the silica gel used was a commercial silica gel for food drying ("HD1g (Blue)" produced by Toyotakako Co., Ltd.).
  • a commercial silica gel for food drying (“HD1g (Blue)” produced by Toyotakako Co., Ltd.).
  • PP polypropylene
  • tobacco filler 5.0 g in total
  • a predetermined amount of a silica gel were charged together, and they were hermetically packed with an aluminum pouch bag and left to stand for three weeks.
  • the drying treatment was performed at room temperature (20°C).
  • the amount of the silica gel was 2, 4, 6, 8, or 10 g.
  • a flavor inhalator was prepared. Immediately after the preparation of the flavor inhalator, the moisture content in the tobacco filler was measured.
  • the moisture content in the tobacco filler is preferably 7.5% by mass or less and is more preferably 7.0% by mass or less.
  • Fig. 17 illustrates the relationship between the moisture content in the tobacco filler and the content of nicotine in the mainstream smoke.
  • Fig. 18 illustrates the relationship between the moisture content in the tobacco filler and the content of glycerine in the mainstream smoke.
  • Fig. 19 illustrates the relationship between the moisture content in the tobacco filler and the content of propylene glycol in the mainstream smoke. Note that, in the above drawings, the contents of the nicotine, glycerine, and propylene glycol in the mainstream smoke at the first puff are shown.
  • the content of the aerosol generating agent (i.e., mixture of glycerine and propylene glycol) in the tobacco filler was changed.
  • the content of propylene glycol in the tobacco filler was fixed at about 0.5% by mass, the content of glycerine in the tobacco filler was changed.
  • Test 2 while the content of glycerine in the tobacco filler was fixed at about 15% by mass, the content of propylene glycol in the tobacco filler was changed.
  • Figs. 21A and 21B illustrate the results of Test 2.
  • Fig. 21A illustrates the relationship between the content of the aerosol generating agent in the tobacco filler and the content of each component in the mainstream smoke.
  • Fig. 21B illustrates the relationship between the content of propylene glycol in the tobacco filler and the content of each component in the mainstream smoke.
  • G represents glycerine
  • PG represents propylene glycol
  • G+PG represents a mixture of glycerine and propylene glycol
  • Nic represents nicotine
  • Figs. 20A and 20B show the following facts.
  • the content of the aerosol generating agent (G+PG) in the mainstream smoke was increased with the increase in the content of the aerosol generating agent (G+PG) in the tobacco filler, the rate of increase in the content of the aerosol generating agent (G+PG) in the mainstream smoke was gradually reduced.
  • the content of the aerosol generating agent (G+PG) in the tobacco filler was 20% by mass or more, the content of the aerosol generating agent (G+PG) in the mainstream smoke was hardly increased with the increase in the content of the aerosol generating agent (G+PG) in the tobacco filler.
  • the content of the aerosol generating agent (G+PG) in the tobacco filler was 20% by mass or more, the content of glycerine in the mainstream smoke was also hardly increased and the content of propylene glycol in the mainstream smoke was slightly reduced with the increase in the content of the aerosol generating agent (G+PG) in the tobacco filler.
  • the content of the aerosol generating agent (G+PG) in the tobacco filler was 20% by mass or more, the content of nicotine in the mainstream smoke was not increased at all with the increase in the content of the aerosol generating agent (G+PG) in the tobacco filler.
  • Figs. 21A and 21B show the following facts.
  • the content of the aerosol generating agent (G+PG) in the mainstream smoke was increased with the increase in the content of the aerosol generating agent (G+PG) in the tobacco filler, the rate of increase in the content of the aerosol generating agent (G+PG) in the mainstream smoke was gradually reduced.
  • the content of propylene glycol in the tobacco filler exceeded 3% by mass, the content of the aerosol generating agent (G+PG) in the mainstream smoke was hardly increased with the increase in the content of propylene glycol in the tobacco filler.
  • the aerosol generating agent When the aerosol generating agent is heated, it is vaporized to form a vapor, a tobacco flavor component, such as nicotine, migrates into the vapor, and an aerosol (i.e., mainstream smoke) is generated consequently. Since heat is lost due to the vaporization of the aerosol generating agent, the amount of heat lost by vaporization is increased with the increase in the content of the aerosol generating agent in the tobacco filler. This reduces the efficiency with which the tobacco filler is heated. It is considered that, for the above reasons, the rate of migration of the high-boiling point components (i.e., glycerine and nicotine) to the aerosol was reduced with the increase in the content of the aerosol generating agent in the tobacco filler.
  • the high-boiling point components i.e., glycerine and nicotine
  • the content of the aerosol generating agent in the tobacco filler is preferably less than 20% by mass, is more preferably 19% by mass or less, and is further preferably 15% to 19% by mass.
  • the content of propylene glycol in the tobacco filler is preferably 3% by mass or less and is more preferably 1% to 3% by mass.
  • a tobacco sheet for non-combustion-heating-type flavor inhalators including a tobacco powder, wherein a cumulative 90% particle size (D90) of the tobacco powder, the cumulative 90% particle size being determined using a volume-basis particle size distribution measured by dry laser diffraction, is 200 ⁇ m or more.
  • the sheet according to aspect 2, wherein the aerosol generating agent is a mixture of glycerine and propylene glycol.
  • the sheet according to aspect 4, wherein the aerosol generating agent is a mixture of propylene glycol and glycerine.
  • a non-combustion-heating-type flavor inhalator including a tobacco-containing segment including the tobacco sheet for non-combustion-heating-type flavor inhalators according to any one of aspects 1 to 5.
  • a non-combustion-heating-type flavor inhalation system including the non-combustion-heating-type flavor inhalator according to any one of [b1] to [b6] and an aerosol generation apparatus.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Manufacture Of Tobacco Products (AREA)
EP22864636.0A 2021-09-01 2022-08-31 Tobacco sheet for non-combustion heating-type flavor inhaler, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhalation system Pending EP4397193A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PCT/JP2021/032157 WO2023032089A1 (ja) 2021-09-01 2021-09-01 乾燥たばこ充填材、非燃焼加熱型香味吸引物品、非燃焼加熱型香味吸引器および包装製品
PCT/JP2021/032156 WO2023032088A1 (ja) 2021-09-01 2021-09-01 乾燥たばこ充填材、非燃焼加熱型香味吸引物品、非燃焼加熱型香味吸引器および包装製品
JP2021170058 2021-10-18
PCT/JP2022/032801 WO2023033054A1 (ja) 2021-09-01 2022-08-31 非燃焼加熱型香味吸引器用たばこシート、非燃焼加熱型香味吸引器、及び非燃焼加熱型香味吸引システム

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EP4397193A1 true EP4397193A1 (en) 2024-07-10

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EP22864636.0A Pending EP4397193A1 (en) 2021-09-01 2022-08-31 Tobacco sheet for non-combustion heating-type flavor inhaler, non-combustion heating-type flavor inhaler, and non-combustion heating-type flavor inhalation system

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US (1) US20240196952A1 (enrdf_load_stackoverflow)
EP (1) EP4397193A1 (enrdf_load_stackoverflow)
JP (1) JPWO2023033054A1 (enrdf_load_stackoverflow)
KR (1) KR20240046615A (enrdf_load_stackoverflow)
WO (1) WO2023033054A1 (enrdf_load_stackoverflow)

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JPS5969923U (ja) 1982-10-28 1984-05-12 クニミツ工業株式会社 被服用クリツプ
JP3681410B2 (ja) * 1992-04-09 2005-08-10 フィリップ・モーリス・プロダクツ・インコーポレイテッド 再構成タバコシート及びその製造法及び使用法
AR002035A1 (es) 1995-04-20 1998-01-07 Philip Morris Prod Un cigarrillo, un cigarrillo y encendedor adaptados para cooperar entre si, un metodo para mejorar la entrega de aerosol de un cigarrillo, un material continuo de tabaco, un cigarrillo operativo, un metodo para manufacturar un material continuo, el material asi obtenido, un calentador, un metodo para formar un calentador y un sistema electrico para fumar
JPWO2010110226A1 (ja) 2009-03-23 2012-09-27 日本たばこ産業株式会社 非燃焼タイプ香味吸引物品
EP2361516A1 (en) 2010-02-19 2011-08-31 Philip Morris Products S.A. Aerosol-generating substrate for smoking articles
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
HUE067968T2 (hu) 2018-09-17 2024-12-28 Comas Costruzioni Macch Speciali S P A Eljárás és üzem helyreállított dohány elõállítására
KR20210070289A (ko) * 2018-10-08 2021-06-14 필립모리스 프로덕츠 에스.에이. 신규한 정향-함유 에어로졸 발생 기재
EP3881686A4 (en) * 2018-11-14 2022-08-10 Japan Tobacco Inc. TOBACCO SEGMENT AND PROCESS FOR PRODUCTION THEREOF, SMOKING ARTICLES WITH NON-COMBUSTION HEATING AND SMOKING SYSTEM WITH NON-COMBUSTION HEATING
PL3949771T3 (pl) * 2019-03-29 2024-08-26 Japan Tobacco Inc. Podgrzewany-nie-spalany wyrób do palenia, sposób jego zastosowania oraz układ do palenia w rodzaju podgrzewania-nie-spalania
CN111227298A (zh) * 2020-01-07 2020-06-05 湖北中烟工业有限责任公司 一种高烟雾量加热不燃烧烟草烟弹的制备方法

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WO2023033054A1 (ja) 2023-03-09

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