EP4397192A1 - 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
EP4397192A1
EP4397192A1 EP22864624.6A EP22864624A EP4397192A1 EP 4397192 A1 EP4397192 A1 EP 4397192A1 EP 22864624 A EP22864624 A EP 22864624A EP 4397192 A1 EP4397192 A1 EP 4397192A1
Authority
EP
European Patent Office
Prior art keywords
tobacco
mass
heating
filler
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
EP22864624.6A
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 EP4397192A1 publication Critical patent/EP4397192A1/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
    • 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 or a tobacco sheet.
  • a tobacco sheet for combustion-type flavor inhalators.
  • 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 is 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.
  • an aerosol generating agent may be added to the flavor source of a non-combustion-heating-type flavor inhalator in order to increase the amount of smoke generated.
  • the aerosol generating agent vaporizes to generate an aerosol. Since the aerosol is delivered to the user accompanied by a flavor component, such as a tobacco component, the user can appreciate the flavor at a sufficient level.
  • a non-combustion-heating-type flavor inhalator may include, for example, a tobacco-containing segment filled with a tobacco sheet or the like, a cooling segment, and a filter segment.
  • the length of the tobacco-containing segment of the non-combustion-heating-type flavor inhalator in the axial direction is commonly smaller than that of the tobacco-containing segment of a combustion-type flavor inhalator in the axial direction due to the relationship between the tobacco-containing segment and the heater. Accordingly, the short tobacco-containing segment of a non-combustion-heating-type flavor inhalator is filled with a large amount of tobacco sheet in order to maintain a certain amount of aerosol generated upon heating.
  • the present invention includes the following aspects.
  • the fibrous material included in the tobacco sheet according to this embodiment is not limited and any fibrous material similar to fibers.
  • the fibrous material include a fibrous pulp, a fibrous tobacco material, and fibrous synthetic cellulose.
  • the above fibrous materials may be used alone or in combination of two or more.
  • a fibrous pulp is preferably used as a fibrous material in consideration of fiber stiffness.
  • the content of the fibrous material in the tobacco sheet is preferably 5% to 50% by mass with the amount of the tobacco sheet being 100% by mass.
  • the content of the fibrous material is more preferably 5% to 47% by mass, is further preferably 5% to 45% by mass, and is particularly preferably 5% to 40% by mass.
  • the tobacco extract examples include a tobacco extract produced by, for example, crushing leaf tobacco, mixing the resulting coarse particles with a solvent, such as water, stirring the resulting mixture to extract a water-soluble component from the leaf tobacco, and vacuum-drying the resulting water extract to condense the water extract.
  • a solvent such as water
  • the tobacco sheet according to this embodiment preferably further include a shaping agent in order to maintain shape.
  • a shaping agent include a polysaccharide, a protein, and a synthetic polymer.
  • the above shaping agents may be used alone or in combination of two or more.
  • the polysaccharide include a cellulose derivative and a naturally occurring polysaccharide.
  • Examples of the naturally occurring polysaccharide include plant-derived polysaccharides, such as a guar gum, a tara gum, a locust bean gum, a tamarind seed gum, pectin, an arabic gum, a tragacanth gum, a karaya gum, a ghatti gum, arabinogalactan, a linseed gum, a cassia gum, a thyrium seed gum, an a rtemisia sphaerocephala seed gum; algae-derived polysaccharides, such as carrageenan, agar, alginic acid, alginic acid ester of propylene glycol, furcelleran, and Colpomenia sinuosa extract; microorganism-derived polysaccharides, such as a xanthan gum, a gellan gum, curdlan, pullulan, agrobacterium succinoglycan, a welan gum, a macrophomops
  • 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 content of the reinforcing agent in the tobacco sheet is preferably 0.1% to 20% 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 reinforcing agent is more preferably 0.2% to 18% by mass and is further preferably 0.5% to 15% by mass.
  • 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 ⁇ 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 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.
  • 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, 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 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 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
  • the tobacco molded body is a molded body prepared by forming a raw material including shredded tobacco into a shape.
  • the tobacco molded body include a tobacco sheet and tobacco granules.
  • the sheet can be formed by a method known in the related art, such as a sheet making method, a casting method, or a rolling method.
  • the "tobacco granules" are molded articles produced by forming a raw material including shredded tobacco into a granular shape.
  • the tobacco granules can be produced by a method known in the related art, such as extruding granulation, fluidized-bed granulation, or spray drying.
  • the "moisture content" in the dry tobacco filler and the "moisture content” in the untreated tobacco filler can be determined using GC-TCD in the following manner.
  • 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 content of the filler in the flavor inhalator 1 is, for example, 200 to 400 mg and is preferably 250 to 320 mg in the case where the tobacco-containing segment 2 has a perimeter of 22 mm and a length of 20 mm.
  • the aerosol generation apparatus 120 may have an airflow path 160 formed therein and communicated with the insertion hole 130.
  • One of the ends of the airflow path 160 is connected to the insertion hole 130, while the other end of the airflow path 160 is communicated with the outside of the aerosol generation apparatus 120 (i.e., the outside air) at a position other than that of the insertion hole 130.
  • 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 lid 170 covers the above end of the airflow path 160 in the drawing, the lid 170 does not hermetically block the airflow path 160. In other words, although the lid 170 covers the airflow path 160, it is arranged to be spaced away from the above end of the airflow path 160 and to allow the outside air to enter the airflow path 160 through the gap formed therebetween.
  • the aerosol generation apparatus 120 may include a temperature sensor disposed inside the airflow path 160 or on the outside surface of the wall that defines the airflow path 160.
  • the temperature sensor may be a thermistor thermometer, a thermocouple, or the like.
  • the temperature sensor measures the temperature drop and thereby detects the inhalation action of the user.
  • 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 heater 30 may be arranged around the inner cylinder member 132.
  • the space that accommodates the heater 30 and the space that accommodates the battery B may be separated from each other with a partition 180. In such a case, the likelihood of the air heated by the heater 30 entering the space that accommodates the battery B can be reduced and, consequently, an increase in the temperature of the battery B can be limited.
  • the heater 30 preferably has a hollow cylindrical shape that enables the outer circumference of the columnar flavor inhalator 1 to be heated.
  • the heater 30 is, for example, a film heater.
  • the film heater may include a pair of film-like substrates and a resistance heating element interposed between the substrates.
  • the film-like substrates are preferably composed of a material having excellent heat resistance and an excellent electric insulation property and is typically composed of polyimide.
  • the resistance heating element is preferably composed of one or more metal materials, such as copper, a nickel alloy, a chromium alloy, a stainless steel, and platinum rhodium, and may be formed of, for example, a stainless steel substrate.
  • the connector of the resistance heating element and the lead of the connector may be plated with copper in order to connect the resistance heating element to a power source through a flexible print circuit (FPC).
  • FPC flexible print circuit
  • 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 aerosol generation apparatus 120 may include a tubular heat insulating material arranged outside the heater 30 in the radial direction and preferably arranged outside the heat-shrinkable tube.
  • the heat insulating material blocks the heat generated by the heater 30 and thereby may reduce the possibility of the temperature of the outside surface of the casing of the aerosol generation apparatus 120 being increased to an excessive degree.
  • the heat insulating material may be made of an aerogel, such as a silica aerogel, a carbon aerogel, or an alumina aerogel.
  • the aerogel used as a heat insulating material may be typically a silica aerogel, which has a high heat-insulation property and relatively low production costs.
  • the heat insulating material may be a fiber-based heat insulating material, such as a glass wool or a rock wool, or a foam-based heat insulating material, such as a urethane foam or a phenolic foam. In another case, the heat insulating material may be a vacuum heat insulator.
  • An outer cylinder member 134 is disposed outside the heat insulating material.
  • the heat insulating material may be interposed between the inner cylinder member 132, which faces the flavor inhalator 1, and the outer cylinder member 134.
  • the outer cylinder member 134 may be composed of, for example, a thermally conductive material, such as aluminum or a stainless steel (SUS).
  • the heat insulating material is preferably disposed in an enclosed space.
  • the control unit 20 may include a circuit board, a central processing unit (CPU), a memory, and the like.
  • the aerosol generation apparatus 120 may include a notifier that notifies various types of information to the user under the control by the control unit 20.
  • the notifier may be, for example, a light-emitting device, such as a light-emitting diode (LED), a vibrating device, or a combination thereof.
  • 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>).
  • a fibrous material is added to the dry tobacco filler and the resulting mixture 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 including the fibrous material 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 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.
  • a packaged product including a package; at least one non-combustion-heating-type flavor inhalator that is accommodated in the package and that includes a sheet composed of a fibrous material and a tobacco filler including a tobacco material and an aerosol generating agent; and a desiccant incorporated in 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, wherein the moisture content in the tobacco filler reaches the equilibrium moisture content of more than 5% by mass and 7.5% by mass or less in the package, can be provided.
  • the non-combustion-heating-type flavor inhalator is preferably accommodated in the package under a hermetically sealed condition.
  • the "package” may be a package that is used in the technical field as a package for tobacco products, such as cigarettes, and that has a sealing property.
  • Examples of the package include a cigarette pack commonly used as a cigarette package, that is, specifically, a cigarette pack constituted by an outer pack including a paper box with a hinge lid and an inner pack including an inner wrap paper with which a bundle of cigarettes is wrapped;
  • 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 fibrous material and 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 fibrous material and 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”.
  • the moisture content in the tobacco filler is reduced to 7.5% by mass or less in accordance with the present invention
  • a non-combustion-heating-type flavor inhalator including a sheet formed of the tobacco filler
  • the temperature of the mainstream smoke and the surface temperature of the tipping paper can be reduced. This reduces the likelihood of the user sensing the heat of the aerosol and the heat of the mouthpiece end of the article upon inhalation.
  • the contents of the aerosol generating agent and the tobacco flavor source (e.g., nicotine) in the tobacco filler can be maintained without loss even after the drying step.
  • the property of maintaining the aerosol generating agent and the tobacco flavor source in a consistent manner even after drying without the contents of the aerosol generating agent and the tobacco flavor source (e.g., nicotine) being reduced while the tobacco filler is dried is referred to as "quality stability of the tobacco filler".
  • the "quality stability of the tobacco filler" is one of the important properties of the flavor inhalator because this property is closely related to transferring a tobacco flavor source to a vapor generated as a result of heating of the aerosol generating agent and delivering it to the user.
  • 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.
  • 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 content of the aerosol generating agent is less than 20% by mass of the total mass of the dry tobacco filler.
  • the content of the aerosol generating agent in the dry tobacco filler is less than 20% by mass, is preferably 19% by mass or less, and is more preferably 15% to 19% by mass of the total mass of the dry tobacco filler.
  • the content of the propylene glycol is preferably 3% by mass or less of the total mass of the dry tobacco filler.
  • the content of the propylene glycol in the dry tobacco filler is preferably 3% by mass or less and is more preferably 1% to 3% by mass.
  • the "content of the aerosol generating agent" in the dry tobacco filler can be determined in the following manner: the dry tobacco filler is added to a predetermined amount of ethanol (10 to 100 mL, which is adjusted appropriately in accordance with the amount of dry tobacco filler) in order to perform extraction, and the content of the aerosol generating agent (e.g., glycerine and propylene glycol) can be measured using GC-MS.
  • the content of the aerosol generating agent e.g., glycerine and propylene glycol
  • the method for producing a dry tobacco filler in this aspect is the same as that described in First Aspect. Note that, in this aspect, the drying treatment is preferably performed in the following manner.
  • 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 can be performed using any drying method with which a dry tobacco filler having the intended moisture content can be prepared.
  • the drying treatment may be performed at room temperature and a humidity of 30% or less.
  • the room temperature is typically a temperature of 5°C to 35°C.
  • the drying treatment is preferably performed at 5°C to 35°C and is more preferably performed at 15°C to 25°C.
  • the drying treatment is preferably performed at a humidity of 10% to 30% and is more preferably performed at a humidity of 15% to 25%.
  • silica gel is used as a desiccant
  • 4 to 10 g of silica gel may be used relative to 5.0 g of the untreated tobacco filler ( Fig. 15 ).
  • the drying treatment may be performed using hot-air drying or vacuum drying.
  • 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.
  • 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 3% to 5% by mass.
  • 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 3 to 5% by mass using an untreated tobacco filler having a moisture content of about 14% by mass for example, 4 to 10 g of silica gel may be used relative to 5.0 g of the tobacco filler.
  • the moisture content in the tobacco filler is reduced to 3% to 5% by mass in accordance with the present invention
  • a non-combustion-heating-type flavor inhalator including a sheet formed of the tobacco filler
  • the temperature of the mainstream smoke and the surface temperature of the tipping paper can be reduced. This reduces the likelihood of the user sensing the heat of the aerosol and the heat of the mouthpiece end of the article upon inhalation.
  • 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.
  • a tobacco sheet was prepared by a rolling method using the above tobacco powder as a tobacco raw material. Specifically, 77 parts by mass of the tobacco raw material, 12 parts by mass of glycerine used as an aerosol generating agent, 1 part by mass of carboxymethyl cellulose used as a shaping agent, and 10 parts by mass of a fibrous pulp (dry fibrillated article of a pulp produced by Canfor Corporation) used as a fibrous material, were mixed with one another, and the resulting mixture was kneaded with an extrusion molding machine. The kneaded material was formed into a sheet-like shape with two pairs of metal rollers. The sheet was dried with a convection oven at 80°C to form a tobacco sheet. The tobacco sheet was shredded to a size of 0.8 mm ⁇ 9.5 mm with a shredder.
  • Fig. 9 show the following facts.
  • the amount of the silica gel used was increased, the moisture content in the tobacco filler was reduced.
  • silica gel was used relative to 20 tobacco sticks (tobacco filler: 5.0 g in total)
  • a dry tobacco filler having a moisture content of more than 5% by mass and 7.5% by mass or less could be prepared.
  • thermocouple product name: produced by TOA Electric Inc., model No. TI-SP-K
  • the maximum value measured during the measurement period was determined as "mainstream smoke temperature”.
  • thermocouple produced by TOA Electric Inc., model No. TI-SP-K was disposed on the surface of the tipping paper at a position 5 mm away from the mouthpiece end of the flavor inhalator toward the upstream, and the temperature of the mainstream smoke was measured at intervals of 0.1 seconds. The maximum value measured during the measurement period was determined as "tip temperature".
  • a tobacco stick for Ploom S produced by Japan Tobacco Inc. (product name: "MEVIUS REGULAR for Ploom S") was subjected to any one of (A) microwave drying and (B) silica gel drying in order to reduce the moisture content in the tobacco filler included in the tobacco stick.
  • the tobacco stick for Ploom S had the structure illustrated in Fig. 1 .
  • a commercial microwave oven (“DR-D219W5 (2014)” produced by Twinbird Corporation, 50 Hz) was used at 500 W, and 20 tobacco sticks (tobacco filler: 5.0 g in total) were heated in the microwave oven for a predetermined amount of time. The amount of heating time was 20, 40, 60, 80, or 100 seconds. After heating, 20 tobacco sticks were charged into a polypropylene (PP) zipper bag together and hermetically packed with an aluminum pouch bag. Hereby, a flavor inhalator was prepared. Immediately after the preparation of the flavor inhalator, the moisture content in the tobacco filler was measured.
  • PP polypropylene
  • 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.
  • a tobacco filler was taken from each of the flavor inhalator prepared above and the flavor inhalator used as a control, and the moisture contents in the tobacco fillers (% by mass) were measured using GCTCD in the above-described manner. Furthermore, the content of the aerosol generating agent in the tobacco filler was determined using GC-MS in the above-described manner.
  • Fig. 15 show the following facts.
  • the amount of the silica gel used was increased, the moisture content in the tobacco filler was reduced.
  • silica gel was used relative to 20 tobacco sticks (tobacco filler: 5.0 g in total)
  • a dry tobacco filler having a moisture content of 3% to 5% by mass could be prepared.
  • the flavor inhalator prepared in Reference Example B1 and the flavor inhalator used as a control were heated using a heating device for Ploom S (produced by Japan Tobacco Inc.).
  • the heating device had the structure illustrated in Fig. 5 . After heating, the flavor inhalators were inhaled using an automatic inhalator.
  • the temperature of the mainstream smoke and the surface temperature of the mouthpiece end of the flavor inhalator (hereinafter, this surface temperature is referred to as "tip temperature”) were analyzed.
  • thermocouple product name: produced by TOA Electric Inc., model No. TI-SP-K
  • tip temperature The maximum value measured during the measurement period was determined as "tip temperature”.
  • Fig. 16 illustrates the relationship between the moisture content in the tobacco filler and the temperature of the mainstream smoke and the relationship between the moisture content in the tobacco filler and the tip temperature.
  • the above phenomenon occurred because the cell membranes and cell walls of the tobacco material were damaged as a result of quick drying performed with the microwave oven and the likelihood of nicotine, glycerine, and propylene glycol included in the tobacco material migrating into the mainstream smoke was increased consequently. Since the above phenomenon significantly occurred particularly at the initial puff, it is considered that the above phenomenon affects the first impression of the smoke taste.
  • the sudden release of a tobacco flavor component may adversely affect the smoke taste (e.g., a harsh taste or stimulation). Therefore, in the case where microwave drying is performed, for limiting the negative impacts on the smoke taste, the moisture content in the tobacco filler is preferably 3% to 5% by mass and is more preferably 4% to 5% by mass.
  • a tobacco filler was taken from the flavor inhalator prepared in 4-1, and the content of the aerosol generating agent (i.e., glycerine and propylene glycol) in the tobacco filler was determined using GC-MS in the above-described manner.
  • the aerosol generating agent i.e., glycerine and propylene glycol
  • 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.
  • the sheet according to aspect 2, wherein the aerosol generating agent is a mixture of glycerine and propylene glycol.
  • a non-combustion-heating-type flavor inhalator including a tobacco-containing segment including the sheet according to any one of aspects 1 to 5.
  • a non-combustion-heating-type flavor inhalation system including:
  • a dry tobacco filler including a dry tobacco material and an aerosol generating agent, the dry tobacco filler having a moisture content of more than 5% by mass and 7.5% by mass or less.
  • a non-combustion-heating-type flavor inhalation system including the non-combustion-heating-type flavor inhalator according to any one of [B1] to [B4] and an aerosol generation apparatus.
  • [D4] The packaged product according to any one of [D1] to [D3], wherein the aerosol generating agent is a mixture of glycerine and propylene glycol.
  • a method for producing a dry tobacco filler including: drying a tobacco filler including a tobacco material and an aerosol generating agent to prepare a dry tobacco filler having a moisture content of more than 5% by mass and 7.5% by mass or less.

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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)
EP22864624.6A 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 EP4397192A1 (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
JP2021170066 2021-10-18
PCT/JP2022/032765 WO2023033042A1 (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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EP4397192A1 true EP4397192A1 (en) 2024-07-10

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EP22864624.6A Pending EP4397192A1 (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) US20240245089A1 (enrdf_load_stackoverflow)
EP (1) EP4397192A1 (enrdf_load_stackoverflow)
JP (1) JPWO2023033042A1 (enrdf_load_stackoverflow)
KR (1) KR20240046623A (enrdf_load_stackoverflow)
WO (1) WO2023033042A1 (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
JPS6045914B2 (ja) 1983-09-26 1985-10-12 日本たばこ産業株式会社 しわ付シ−トたばこの製造法
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
KR102758881B1 (ko) * 2017-12-21 2025-01-23 필립모리스 프로덕츠 에스.에이. 가열식 에어로졸 발생 물품에서 에어로졸 암모니아의 감소
WO2020084776A1 (ja) * 2018-10-26 2020-04-30 日本たばこ産業株式会社 制御ユニット、エアロゾル生成装置、ヒータを制御する方法及びプログラム、並びに喫煙物品
WO2020148902A1 (ja) * 2019-01-18 2020-07-23 日本たばこ産業株式会社 積層再構成たばこシートの製造方法
KR102761669B1 (ko) * 2019-03-28 2025-02-04 니뽄 다바코 산교 가부시키가이샤 가열식 담배, 가열식 담배 제품, 가열식 담배에서의 담배 로드의 제조 방법 및 제조 장치

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US20240245089A1 (en) 2024-07-25

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