US20240358059A1 - Production method for tobacco flavored liquid, tobacco flavored liquid, reconstituted tobacco material, and flavor inhaler - Google Patents

Production method for tobacco flavored liquid, tobacco flavored liquid, reconstituted tobacco material, and flavor inhaler Download PDF

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Publication number
US20240358059A1
US20240358059A1 US18/767,997 US202418767997A US2024358059A1 US 20240358059 A1 US20240358059 A1 US 20240358059A1 US 202418767997 A US202418767997 A US 202418767997A US 2024358059 A1 US2024358059 A1 US 2024358059A1
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Prior art keywords
tobacco
liquid
flavor
flavored liquid
heating
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US18/767,997
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English (en)
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Ryosuke NAGASE
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Japan Tobacco Inc
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Japan Tobacco Inc
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Publication of US20240358059A1 publication Critical patent/US20240358059A1/en
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
    • A24B15/26—Use of organic solvents for extraction
    • 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
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
    • 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
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
    • 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
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
    • A24B15/241—Extraction of specific substances
    • 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
    • A24F40/10—Devices using liquid 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
    • A24F40/20—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

Definitions

  • the present invention relates to a production method for a tobacco flavored liquid, a tobacco flavored liquid, a reconstituted tobacco material, and a flavor inhaler.
  • the aforementioned flavor component-containing liquid provides an excellent smoking flavor when used in a flavor inhaler, but it turns black over time, which is not preferred from the viewpoint of appearance. Also, an over-time change in color of the flavor component-containing liquid is a sign of alteration in the contained components. As such, a flavor component-containing liquid that has undergone storage may no longer stably conserve the smoking flavor.
  • Objects of the present invention therefore include providing a technique for suppressing an over-time color change of a tobacco flavored liquid for use in an aerosol-generating flavor inhaler.
  • a production method for a tobacco flavored liquid for use in an aerosol-generating flavor inhaler comprising:
  • the tobacco flavored liquid obtainable by the above-mentioned method.
  • a flavor inhaler comprising the above-mentioned tobacco flavored liquid.
  • a reconstituted tobacco material comprising:
  • a flavor inhaler comprising the above-mentioned reconstituted tobacco material.
  • a technique for suppressing an over-time color change of a tobacco flavored liquid for use in an aerosol-generating flavor inhaler is provided.
  • FIG. 1 is a flowchart showing an exemplary production method for a tobacco flavored liquid.
  • FIG. 2 is a schematic diagram showing an exemplary heating device.
  • FIG. 3 is a schematic diagram showing an exemplary dissolving device.
  • FIG. 4 is a perspective view showing an exemplary heating-type flavor inhaler.
  • FIG. 5 is a perspective view of a power supply unit in the heating-type flavor inhaler shown in FIG. 4 .
  • FIG. 6 is a sectional view of the heating-type flavor inhaler shown in FIG. 4 .
  • FIG. 7 is a block diagram showing a configuration of the main part of the power supply unit in the heating-type flavor inhaler shown in FIG. 4 .
  • FIG. 8 A is a schematic front view showing an exemplary aerosol generating device.
  • FIG. 8 B is a schematic top view of the aerosol generating device shown in FIG. 8 A .
  • FIG. 8 C is a schematic bottom view of the aerosol generating device shown in FIG. 8 A .
  • FIG. 9 is a schematic sectional side view showing an exemplary flavor generating article.
  • FIG. 10 is a sectional view of the aerosol generating device taken along the line III-III shown in FIG. 8 B .
  • FIG. 11 is a graph showing a magnitude of color change of a tobacco flavored liquid.
  • FIG. 12 is a graph showing a content of a sulfur-containing component in the tobacco flavored liquid.
  • a production method for a tobacco flavored liquid includes:
  • the “tobacco flavored liquid” produced by this method is used in a flavor inhaler which generates aerosol.
  • the “tobacco flavored liquid” contains the first liquid serving as an aerosol source and various flavor components derived from the tobacco material. Once the tobacco flavored liquid is incorporated into the flavor inhaler and atomized, the first liquid serving as an aerosol source is vaporized and the flavor components move into the vapor, thereby generating aerosol (tobacco vapor).
  • the term “aerosol source” refers to a source (liquid) for generating vapor (gas) when a tobacco flavored liquid is incorporated into a flavor inhaler and atomized.
  • the term “aerosol source” refers to a source (liquid) for generating a dispersion medium (gas) for aerosol (tobacco vapor), and does not include fine particles (such as flavor components) in the aerosol.
  • FIG. 1 shows, in the form of a flowchart, one example of the production method for a tobacco flavored liquid.
  • the heating step (S 1 ) heats the tobacco material to vaporize the flavor components from the tobacco material.
  • a gas containing the flavor components is obtained (see FIG. 1 ).
  • cut tobacco which is ready to be incorporated into a tobacco product such as a combustion-type or heating-type flavor inhaler
  • a tobacco product such as a combustion-type or heating-type flavor inhaler
  • the “cut tobacco which is ready to be incorporated into a tobacco product” refers to cut tobacco which has become ready to be incorporated into a tobacco product by going through various processes including drying in a farm house, subsequent long-term aging in a leaf processing facility for one to several years, and subsequent blending and cutting in a manufacturing facility.
  • the cut tobacco consists of cut pieces of leaf tobacco.
  • the cut tobacco may be any of cut pieces of stemmed leaves, cut pieces of midrib, and cut pieces of reconstituted tobacco (i.e., a tobacco material obtained by processing leaf scraps, cut tobacco scraps, midrib scraps, fine powder, etc., produced in the facility processes into a reusable shape), or a mixture thereof.
  • the cut tobacco may be pulverized and the resulting pulverized product may be applied to the heating step (S 1 ).
  • Use of the pulverized product of the cut tobacco as a tobacco material can realize an enhanced efficiency in recovery of the flavor components from the tobacco material. This can increase the content of the flavor components in an eventually obtained tobacco flavored liquid.
  • cut tobacco As the cut tobacco, cut tobacco derived from any tobacco variety may be used and its examples include cut tobacco derived from flue-cured tobacco, Burley tobacco, Oriental tobacco, etc. As the cut tobacco, cut tobacco derived from a single variety, or a mixture of different varieties may be used.
  • the heating may be conducted at a temperature of, for example, 150 to 400° C., preferably 160 to 230° C.
  • the heating may be conducted for a period of, for example, 5 to 60 minutes, preferably 10 to 30 minutes.
  • the heating may be conducted using a heating apparatus shown in FIG. 2 .
  • this heating device 2 includes a container 2 A for accommodating a tobacco material 2 D, a sintered plate 2 B arranged at the bottom of the container 2 A, a preheater 2 C for heating air sent to the container 2 A, an air flow path 2 E for sending air to the container 2 A, a gas flow path 2 F for discharging a gas generated by heating the tobacco material 2 D from the container 2 A, and an oven (not shown in the figure) for accommodating the container 2 A.
  • the tobacco material 2 D is put in the container 2 A. Air is heated by the preheater 2 C and then sent through the air flow path 2 E to a gas inlet provided at the bottom of the container 2 A.
  • the sintered plate 2 B arranged at the bottom of the container 2 A is a porous member. Accordingly, the high-temperature air entering the container 2 A from the gas inlet is supplied throughout the tobacco material 2 D via the sintered plate 2 B. The tobacco material 2 D is heated by the supplied high-temperature air.
  • the container 2 A is accommodated in the oven (not shown in the figure).
  • the tobacco material 2 D is also heated from outside the container 2 A.
  • the composition of the flavor component-containing gas by changing the concentration of oxygen in the air sent to the container 2 A.
  • the oxygen concentration in the air sent to the container 2 A may be controlled so as to change the composition of the flavor component-containing gas. For example, lowering the oxygen concentration in the air can reduce the content of harmful components in the flavor component-containing gas.
  • the heating step is not limited to the use of the heating device shown in FIG. 2 as long as the flavor components are successfully vaporized from the tobacco material.
  • the tobacco material remaining after the heating step (S 1 ) may be used for the production of a reconstituted tobacco material.
  • the reconstituted tobacco material will be described later.
  • the dissolving step (S 2 ) dissolves the flavor component-containing gas obtained in the heating step (S 1 ) in the first liquid serving as an aerosol source. By this, a flavor component-containing liquid is obtained (see FIG. 1 ).
  • a solution obtained by dissolving the flavor component-containing gas in the first liquid is referred to as a “flavor component-containing liquid”.
  • the first liquid acts as a trapping medium for trapping the flavor components in the liquid.
  • the first liquid also functions as an aerosol source in the state where the tobacco flavored liquid produced by the present method has been incorporated into a flavor inhaler.
  • the first liquid a liquid usable as an aerosol source in a flavor inhaler may be used.
  • An example that may be used as the first liquid is propylene glycol, glycerin, 1,3-propanediol, diacetin, polyethylene glycol, or any mixture thereof.
  • the first liquid is propylene glycol, glycerin, or a mixture of propylene glycol and glycerin.
  • the mass ratio between propylene glycol and glycerin is not particularly limited and may be set to, for example, 0.1:9.9 to 9.9:0.1.
  • the first liquid mentioned for the exemplary purpose has a lower polarity than water, and the flavor components have a relatively low polarity.
  • the exemplary first liquid is suitable as a liquid for dissolving the flavor components.
  • the exemplary first liquid has a higher boiling point than water.
  • the exemplary first liquid is suitable for evaporating the flavor components without evaporating the first liquid in the subsequent distilling step.
  • the dissolving may preferably be conducted by causing bubbling in the first liquid with the flavor component-containing gas obtained in the heating step (S 1 ).
  • the first liquid may be used in an amount of 3 to 20 mL per 10 g of the tobacco material.
  • the dissolving may be conducted using a dissolving device shown in FIG. 3 .
  • This dissolving device 3 shown in FIG. 3 is connected to the heating device shown in FIG. 2 via the gas flow path 2 F.
  • the dissolving device 3 includes an inner container 3 A for accommodating the first liquid 3 D, a sintered filter 3 B as a bubbling nozzle, an outer container 3 C for accommodating the inner container 3 A, the gas flow path 2 F for sending the flavor component-containing gas to the inner container 3 A, and a discharge gas flow path 3 G for discharging the gas present within the inner container 3 A.
  • the flavor component-containing gas obtained in the heating step (S 1 ) is sent through the gas flow path 2 F to the sintered filter 3 B arranged at the end of the gas flow path 2 F.
  • the sintered filter 3 B has a porous structure and is immersed in the first liquid 3 D.
  • the flavor component-containing gas thus causes bubbling in the first liquid 3 D.
  • the flavor component-containing gas is accordingly dissolved in the first liquid 3 D.
  • the inner container 3 A accommodates glass beads 3 E in addition to the first liquid 3 D. Conducting the bubbling under the presence of the glass beads 3 E allows the first liquid 3 D to more efficiently trap the flavor components.
  • Bubbling of the first liquid 3 D with the flavor component-containing gas increases the temperature of the first liquid 3 D.
  • ice water 3 F is accommodated in the outer container 3 C. This can prevent a temperature rise of the first liquid 3 D.
  • the gas generated within the inner container 3 A is discharged through the discharge gas flow path 3 G.
  • dissolving step is not limited to the use of the dissolving device shown in FIG. 3 as long as the flavor component-containing gas obtained in the heating step is successfully dissolved in the first liquid.
  • the flavor component-containing gas is dissolved in the first liquid and the flavor component-containing liquid is thereby obtained.
  • the flavor component-containing liquid generally takes on a reddish brown color.
  • the distilling step (S 3 ) distills the flavor component-containing liquid obtained in the dissolving step (S 2 ) at a temperature below the boiling point of the first liquid. By this, a tobacco flavored liquid is obtained (see FIG. 1 ).
  • a separated liquid obtained by distilling the flavor component-containing liquid is referred to as a “tobacco flavored liquid”.
  • the distillation here refers to an operation of heating a distillation subject mixture liquid and condensing (liquefying) the obtained vapor to yield a separated liquid.
  • the distillation is conducted at a temperature below the boiling point of the first liquid.
  • the distillation may preferably be conducted at a temperature above 100° C. and below the boiling point of the first liquid. More preferably, the distillation may be conducted at a temperature equal to or above the boiling point of the first liquid minus 40° C. and below the boiling point of the first liquid.
  • the distillation may be conducted at a temperature in the range of, for example, 150 to 180° C.
  • the distillation may be conducted under, for example, atmospheric pressure.
  • distillation temperature is below 188.2° C., or preferably above 100° C. and below 188.2° C., or more preferably equal to or above 148.2° C. and below 188.2° C.
  • the flavor components With the distillation of the flavor component-containing liquid, the flavor components can be evaporated and separated from the flavor component-containing liquid while leaving a causative substance or substances responsible for color change in the flavor component-containing liquid. Accordingly, a tobacco flavored liquid which would hardly cause an over-time color change can be obtained.
  • the tobacco flavored liquid generally takes on a pale yellow color.
  • the foregoing method may further include a step of adding a second liquid which serves as an aerosol source to the tobacco material prior to the heating step (S 1 ).
  • Adding an aerosol source to the tobacco material prior to the heating step facilitates the vaporization of the flavor components from the tobacco material during the heating step, which can enhance the efficiency in recovery of the flavor components from the tobacco material. This can increase the content of the flavor components in the eventually obtained tobacco flavored liquid.
  • a liquid usable as an aerosol source in a flavor inhaler may be used.
  • Propylene glycol, glycerin, 1,3-propanediol, diacetin, polyethylene glycol, or any mixture thereof may be used as the second liquid.
  • the second liquid is propylene glycol, glycerin, or a mixture of propylene glycol and glycerin.
  • the mass ratio between propylene glycol and glycerin is not particularly limited and may be set to, for example, 0.1:9.9 to 9.9:0.1.
  • the liquid mentioned for the exemplary purpose has a lower polarity than water, and the flavor components have a relatively low polarity.
  • the exemplary liquid is suitable as a liquid for facilitating the vaporization of the flavor components from the tobacco material.
  • the second liquid a liquid of the same type as, or a different type from, the first liquid may be used.
  • the second liquid may be added in an amount of 0.1 to 20 mL per 10 g of the tobacco material.
  • the tobacco flavored liquid obtained by the method described above hardly causes an over-time color change (see Example 1 set forth later). Therefore, incorporating this tobacco flavored liquid into a flavor inhaler can give a user a desirable appearance of the tobacco flavored liquid at the time of its replacement or refilling, even if time has passed since the production of the tobacco flavored liquid.
  • the tobacco flavored liquid hardly causing an over-time color change means that the components contained therein would not easily involve an over-time alteration. Therefore, incorporating the tobacco flavored liquid into a flavor inhaler can give an excellent smoking flavor to a user even if time has passed since the production of the tobacco flavored liquid.
  • the tobacco flavored liquid obtained by the above described method shows a low sulfur-containing component content immediately after the preparation, and the sulfur-containing component content decreases after storage (see Example 2 set forth later). Also in view of the content of the sulfur-containing component, incorporating the tobacco flavored liquid into a flavor inhaler can realize an excellent smoking flavor given to a user even if time has passed since the production of the tobacco flavored liquid.
  • a tobacco flavored liquid obtained by the above described “production method for a tobacco flavored liquid” is provided.
  • the tobacco flavored liquid hardly causes an over-time color change, while securing an excellent smoking flavor even after storage.
  • incorporating this tobacco flavored liquid into a flavor inhaler can give a user a desirable appearance of the tobacco flavored liquid at the time of its replacement or refilling, and also give the user an excellent smoking flavor at the time of use.
  • the tobacco flavored liquid obtained by the above described “production method for a tobacco flavored liquid” may be incorporated into an aerosol-generating flavor inhaler according to a known technique. Examples of the use of the tobacco flavored liquid will be described.
  • the tobacco flavored liquid may be used as a tobacco flavor source in a liquid-atomizing-type flavor inhaler in such a manner that the tobacco flavored liquid is directly put into the flavor inhaler in the state of a liquid and is permitted to be atomized during use.
  • the tobacco flavored liquid may be added to the tobacco material (e.g., stemmed leaves, leaf tobacco, etc.), followed by drying of the obtained mixture, so that the resultant dried product is used as a tobacco flavor source in a flavor inhaler.
  • the tobacco material e.g., stemmed leaves, leaf tobacco, etc.
  • the tobacco flavored liquid may be added to the tobacco material that remains after the heating step (S 1 ) described above, and a tobacco molded body such as a sheet tobacco or tobacco granules may be prepared from the obtained mixture so that this tobacco molded body is used as a tobacco flavor source in a flavor inhaler.
  • the tobacco flavored liquid may be added to the tobacco material that remains after the heating step (S 1 ) described above, a tobacco powder may be prepared by drying and pulverizing the obtained mixture, and this tobacco powder may be added to a tobacco material (e.g., stemmed leaves, leaf tobacco, etc.) so that the thus-resulting mixture is used as a tobacco flavor source in a flavor inhaler.
  • a tobacco material e.g., stemmed leaves, leaf tobacco, etc.
  • the tobacco flavored liquid may be added to the tobacco material that remains after the heating step (S 1 ) described above, a tobacco powder may be prepared by drying and pulverizing the obtained mixture, a tobacco slurry may be prepared by suspending the tobacco powder in water, and this tobacco slurry may be added to a tobacco material (e.g., stemmed leaves, leaf tobacco, etc.) so that the thus-resulting mixture is used as a tobacco flavor source in a flavor inhaler.
  • a tobacco powder may be prepared by drying and pulverizing the obtained mixture
  • a tobacco slurry may be prepared by suspending the tobacco powder in water
  • this tobacco slurry may be added to a tobacco material (e.g., stemmed leaves, leaf tobacco, etc.) so that the thus-resulting mixture is used as a tobacco flavor source in a flavor inhaler.
  • the tobacco flavored liquid may be encapsulated according to a known technique so that the obtained flavor capsules are used as a tobacco flavor source in a flavor inhaler in such a manner that the flavor capsules are incorporated into a filter portion of the flavor inhaler and crushed at the time of use.
  • the tobacco flavored liquid as described above, may be used in combination with the tobacco material remaining after the above described heating step (S 1 ). Therefore, according to still another aspect, there is provided a reconstituted tobacco material containing:
  • the reconstituted tobacco material may be a product obtained by drying a mixture of the tobacco flavored liquid and the tobacco material that remains after the heating step (S 1 ).
  • This product may be used as a tobacco flavor source in a flavor inhaler.
  • the reconstituted tobacco material may be a tobacco molded body obtained by molding a mixture of the tobacco flavored liquid and the tobacco material that remains after the heating step (S 1 ) into a particular shape such as a sheet or granules.
  • the tobacco molded body may be used as a tobacco flavor source in a flavor inhaler.
  • the reconstituted tobacco material may be a tobacco powder obtained by drying a mixture of the tobacco flavored liquid and the tobacco material that remains after the heating step (S 1 ) and pulverizing the dried mixture into a powder form. Addition of this tobacco powder to a tobacco material (e.g., stemmed leaves, leaf tobacco, etc.) can endow the tobacco material with an enhanced flavor.
  • a tobacco material e.g., stemmed leaves, leaf tobacco, etc.
  • the flavor-enhanced tobacco material may be used as a tobacco flavor source in a flavor inhaler.
  • the reconstituted tobacco material may be a tobacco slurry obtained by drying a mixture of the tobacco flavored liquid and the tobacco material that remains after the heating step (S 1 ), pulverizing the dried mixture into a powder form, and suspending the obtained powder in water.
  • Addition of the tobacco slurry to a tobacco material e.g., stemmed leaves, leaf tobacco, etc.
  • the flavor-enhanced tobacco material may be used as a tobacco flavor source in a flavor inhaler.
  • the reconstituted tobacco material may contain additives such as a binder, a pH adjuster, a preservative, and an antioxidant, as necessary.
  • the above described tobacco flavored liquid hardly causes an over-time color change. Accordingly, if the above described tobacco flavored liquid is used to produce a reconstituted tobacco material and the reconstituted tobacco material is incorporated into a flavor inhaler, a substance responsible for the color change would not be easily produced and a member (e.g., wrapping paper) wrapping around the reconstituted tobacco material would be kept from being stained, even after placement in storage.
  • a member e.g., wrapping paper
  • the above described tobacco flavored liquid hardly causes an over-time alteration in the contained components, while securing an excellent smoking flavor even after storage. Accordingly, if the above described tobacco flavored liquid is used to produce a reconstituted tobacco material and the reconstituted tobacco material is incorporated into a flavor inhaler, an excellent smoking flavor can be provided to a user even after storage.
  • tobacco flavored liquid or the “reconstituted tobacco material” described above may be incorporated into any flavor inhaler which generates aerosol. That is, according to another aspect, a flavor inhaler including the above described “tobacco flavored liquid” is provided. According to yet another aspect, a flavor inhaler including the above described “reconstituted tobacco material” is provided. A combustion-type flavor inhaler, a heating-type flavor inhaler, and a non-heating-type flavor inhaler may each be used as the flavor inhaler.
  • a flavor inhaler including the above described “tobacco flavored liquid” and an atomization unit which atomizes the tobacco flavored liquid is provided.
  • the flavor inhaler is more preferably a heating-type flavor inhaler.
  • a flavor inhaler including the above described “tobacco flavored liquid” and an atomization unit which heats the tobacco flavored liquid to atomize the tobacco flavored liquid is provided.
  • a flavor inhaler including the above described “reconstituted tobacco material” and an atomization unit which atomizes a liquid component contained in the reconstituted tobacco material is provided.
  • the flavor inhaler is more preferably a heating-type flavor inhaler.
  • a flavor inhaler including the above described “reconstituted tobacco material” and an atomization unit which heats the reconstituted tobacco material to atomize a liquid component contained in the reconstituted tobacco material is provided.
  • combustion-type flavor inhaler refers to a flavor inhaler which provides a tobacco flavor to a user by burning a tobacco filler (cut tobacco, a tobacco molded body, or the like).
  • tobacco filler cut tobacco, a tobacco molded body, or the like.
  • examples of the combustion-type flavor inhaler include a cigarette, a pipe, a kiseru (i.e., a traditional Japanese pipe for fine cut tobacco), a cigar, and a cigarillo.
  • heating-type flavor inhaler refers to a flavor inhaler which provides a tobacco flavor to a user by heating a tobacco flavor source such as a tobacco filler or a tobacco flavored liquid without burning the tobacco flavor source.
  • tobacco flavor source such as a tobacco filler or a tobacco flavored liquid without burning the tobacco flavor source.
  • heating-type flavor inhaler include:
  • non-heating-type flavor inhaler refers to a flavor inhaler which provides a tobacco flavor to a user without burning or heating a tobacco flavor source such as a tobacco filler or a tobacco flavored liquid.
  • a tobacco flavor source such as a tobacco filler or a tobacco flavored liquid.
  • An example of the non-heating-type flavor inhaler may be a liquid atomizing-type flavor inhaler which includes a tobacco flavored liquid and an atomization unit for atomizing the tobacco flavored liquid using surface acoustic waves (see, for example, WO 2017/167521).
  • FIG. 4 is a perspective view showing an exemplary heating-type flavor inhaler.
  • FIG. 5 is a perspective view of a power supply unit in the heating-type flavor inhaler shown in FIG. 4 .
  • FIG. 6 is a sectional view of the heating-type flavor inhaler shown in FIG. 4 .
  • FIG. 7 is a block diagram showing a configuration of the main part of the power supply unit in the heating-type flavor inhaler shown in FIG. 4 .
  • This heating-type flavor inhaler 1 shown in FIGS. 4 to 7 has a rod shape extending along a predetermined direction (hereinafter referred to as a longitudinal direction A).
  • the heating-type flavor inhaler 1 includes, as shown in FIG. 4 , a power supply unit 10 , a first cartridge 20 , and a second cartridge 30 in this order along the longitudinal direction A.
  • the first cartridge 20 is detachable from the power supply unit 10
  • the second cartridge 30 is detachable from the first cartridge 20 .
  • the first cartridge 20 and the second cartridge 30 are each replaceable.
  • the power supply unit 10 accommodates, as shown in FIGS. 5 and 6 , a power supply 12 , a charger 13 , a control part 50 , various sensors, etc., inside a cylindrical power supply unit case 11 .
  • the power supply 12 is a rechargeable secondary battery which is preferably a lithium ion secondary battery.
  • a discharge terminal 41 is provided at a top portion 11 a located on one end side in the longitudinal direction A (i.e., the first cartridge 20 side) of the power supply unit case 11 .
  • the discharge terminal 41 is provided in such a form as to protrude from the upper surface of the top portion 11 a toward the first cartridge 20 and is configured to be electrically connectable to a load 21 in the first cartridge 20 .
  • an air supply part 42 for supplying air to the load 21 in the first cartridge 20 is provided in the vicinity of the discharge terminal 41 .
  • a charge terminal (not shown in the figure) electrically connectable to an external power source that can charge the power supply 12 is provided at a bottom portion 11 b located on the other end side in the longitudinal direction A (the side opposite to the first cartridge 20 ) of the power supply unit case 11 .
  • a user-operable operation part 14 is provided at the side surface of the top portion 11 a of the power supply unit case 11 .
  • the operation part 14 is constituted by a button switch, a touch panel, or the like, and is used for activating/shutting off the control part 50 and the various sensors in response to the intention of a user for use.
  • the control part 50 is, as shown in FIG. 7 , connected to the charger 13 , the operation part 14 , various sensor devices such as an inhalation sensor 15 for detecting a puff (inhalation) action, a voltage sensor 16 for measuring a voltage of the power supply 12 , and a temperature sensor 17 for detecting a temperature, and a memory 18 for storing the number of puff actions, the time of current application to the load 21 , etc., and is adapted to perform various controls for the heating-type flavor inhaler 1 .
  • the inhalation sensor 15 may be constituted by a condenser microphone, a pressure sensor, etc.
  • a concrete form of the control part 50 is a processor (micro-controller unit (MCU)).
  • MCU micro-controller unit
  • the structure of this processor is, in more concrete terms, electric circuitry formed of a combination of circuit elements such as semiconductor elements.
  • the first cartridge 20 includes, as shown in FIG. 6 , a reservoir 23 for retaining a “tobacco flavored liquid” 22 which is as described above, the electric load 21 for atomizing the tobacco flavored liquid 22 , a wick 24 for drawing the tobacco flavored liquid from the reservoir 23 to the load 21 , an aerosol flow path 25 for the aerosol generated by the atomization of the tobacco flavored liquid 22 to flow toward the second cartridge 30 , and an end cap 26 for accommodating a part of the second cartridge 30 inside a cylindrical cartridge case 27 .
  • the reservoir 23 is delimited so as to surround the aerosol flow path 25 and retains the tobacco flavored liquid 22 .
  • the reservoir 23 may enclose a porous member such as a resin web or cotton, in which the tobacco flavored liquid 22 may be impregnated.
  • the reservoir 23 may keep only the tobacco flavored liquid 22 without enclosing a porous member such as a resin web or cotton.
  • the wick 24 is a liquid holding member which draws the tobacco flavored liquid 22 from the reservoir 23 to the load 21 by utilizing capillary action, and is made of, for example, glass fiber or porous ceramic.
  • the load 21 atomizes, without entailing combustion, the tobacco flavored liquid 22 using an electric power supplied from the power supply 12 via the discharge terminal 41 .
  • the load 21 is constituted by a heating wire (coil) wound at a predetermined pitch.
  • the load 21 may be any element as long as it is capable of atomizing the tobacco flavored liquid 22 to generate aerosol, and may be, for example, a heater element or an ultrasound generator. Examples of the heater element include a heat-generating resistor, a ceramic heater, an induction heating-type heater, etc.
  • the aerosol flow path 25 is provided on the downstream side of the load 21 and arranged on a center line L of the power supply unit 10 .
  • the end cap 26 includes a cartridge accommodation portion 26 a for accommodating a part of the second cartridge 30 , and a communication path 26 b for connecting between the aerosol flow path 25 and the cartridge accommodation portion 26 a.
  • the second cartridge 30 retains, as shown in FIG. 6 , a flavor source 31 .
  • the second cartridge 30 is detachably accommodated in the cartridge accommodation portion 26 a in the end cap 26 of the first cartridge 20 .
  • the end of the second cartridge 30 opposite to the first cartridge 20 constitutes a mouthpiece 32 for a user.
  • the mouthpiece 32 is not limited to a configuration integral with the second cartridge 30 , and may have a configuration detachable from the second cartridge 30 . If the mouthpiece 32 is formed as a separate member from the power supply unit 10 and the first cartridge 20 in this way, the mouthpiece 32 can be kept sanitary.
  • the second cartridge 30 gives additional flavor to the aerosol, generated from the tobacco flavored liquid 22 atomized by the load 21 , by letting the aerosol pass through the flavor source 31 .
  • a tobacco filler such as sheet tobacco or tobacco granules may be used.
  • the above described “reconstituted tobacco material” may be incorporated into the flavor source 31 .
  • a flavoring agent such as menthol may also be added to the flavor source 31 .
  • the tobacco flavored liquid 22 and the flavor source 31 may be construed as an aerosol generation source for generating aerosol.
  • the heating-type flavor inhaler 1 has a configuration in which the tobacco flavored liquid 22 and the flavor source 31 are separate from each other, but it may have a configuration in which the tobacco flavored liquid 22 and the flavor source 31 are integral with each other. As another option, the heating-type flavor inhaler 1 is not required to include the second cartridge 30 . In the case where the heating-type flavor inhaler 1 omits the second cartridge 30 here, only the aerosol generated by the atomization of the tobacco flavored liquid 22 is supplied to the mouthpiece.
  • the heating-type flavor inhaler 1 air flowing in from an air intake port (not shown in the figure) provided in the power supply unit case 11 passes through the air supply part 42 and then the vicinity of the load 21 in the first cartridge 20 , as shown in FIG. 6 , arrow B.
  • the load 21 atomizes the tobacco flavored liquid 22 drawn or moved by the wick 24 from the reservoir 23 .
  • the aerosol generated by the atomization flows through the aerosol flow path 25 together with the air flowing in from the air intake port, and is supplied to the second cartridge 30 via the communication path 26 b .
  • the aerosol supplied to the second cartridge 30 is given additional flavor by passing through the flavor source 31 and is then supplied to the mouthpiece 32 .
  • the heating-type flavor inhaler 1 also includes a notification part 45 for giving notifications of various information sets.
  • the notification part 45 may be constituted by a light emitting element, a vibrating element, or a sound outputting element.
  • the notification part 45 may be a combination of two or more of a light emitting element, a vibrating element, and a sound outputting element.
  • the notification part 45 may be provided at any of the power supply unit 10 , the first cartridge 20 , and the second cartridge 30 , but it is preferable that the notification part 45 be provided at the power supply unit 10 so as to keep the conductive line from the power supply 12 short.
  • the notification part 45 may be provided to surround the operation part 14 with such a configuration that the periphery of the operation part 14 is translucent and a light emitting element such as an LED emits light.
  • FIG. 8 A is a schematic front view of one example of the aerosol generating device.
  • FIG. 8 B is a schematic top view of the aerosol generating device shown in FIG. 8 A .
  • FIG. 8 C is a schematic bottom view of the aerosol generating device shown in FIG. 8 A .
  • FIG. 9 is a schematic sectional side view of one example of the flavor generating article.
  • FIG. 10 is a sectional view of the aerosol generating device taken along the line III-III shown in FIG. 8 B .
  • the drawings may give an X-Y-Z orthogonal coordinate system for the sake of description.
  • the Z axis is directed vertically upward
  • the X-Y plane is disposed as if cutting the aerosol generating device 100 in the horizontal direction
  • the Y axis is disposed as if extending from the front surface to the rear surface of the aerosol generating device 100 .
  • the Z axis may also be referred to as an insertion direction of the flavor generating article for accommodation in a chamber 150 of a later described atomization unit 130 , or an axial direction of the chamber 150 .
  • the X axis may be referred to as a direction orthogonal to the Y axis and the Z axis, and the X axis and the Y axis may each be referred to as a radial direction orthogonal to the axial direction of the chamber 150 or a radial direction of the chamber 150 .
  • the aerosol generating device 100 is configured to generate flavor-containing aerosol by heating a stick-type flavor generating article having a flavor source containing the above described “reconstituted tobacco material”.
  • the aerosol generating device 100 includes an outer housing 101 (corresponding to an example of a casing), a slide cover 102 , and a switch part 103 .
  • the outer housing 101 constitutes the outermost housing of the aerosol generating device 100 and has a size to fit in the hand of a user. For the user to use the flavor inhaler, the user can hold the aerosol generating device 100 with its hand and inhale the aerosol.
  • the outer housing 101 may be constituted by an assembly of multiple members.
  • the outer housing 101 is, in one example, made of a resin such as, in particular, polycarbonate (PC), an acrylonitrile-butadiene-styrene (ABS) resin, polyether ether ketone (PEEK), or a polymer alloy containing multiple kinds of polymers, or may be made of a metal such as aluminum.
  • a resin such as, in particular, polycarbonate (PC), an acrylonitrile-butadiene-styrene (ABS) resin, polyether ether ketone (PEEK), or a polymer alloy containing multiple kinds of polymers, or may be made of a metal such as aluminum.
  • the outer housing 101 has an opening (not shown in the figure) for receiving the flavor generating article, and the slide cover 102 is slidably attached to the outer housing 101 to close the opening. More specifically, the slide cover 102 is configured to be movable along an outer surface of the outer housing 101 between a closed position (the position shown in FIGS. 8 A and 8 B ) where it closes the opening of the outer housing 101 and an open position (the position shown in FIG. 10 ) where it exposes the opening. For example, the user may manually operate the slide cover 102 so that the slide cover 102 moves between the closed position and the open position. This can permit or restrict the access of the flavor generating article to the inside of the aerosol generating device 100 .
  • the switch part 103 is used to switch ON and OFF an operation of the aerosol generating device 100 .
  • the user may operate the switch part 103 in a state where the flavor generating article is inserted into the aerosol generating device 100 , and thereby electric power can be supplied from the power source (cf. reference sign 121 in FIG. 10 ) to a heater (cf. reference sign 140 in FIG. 10 ) to heat the flavor generating article without burning it.
  • the switch part 103 may be a switch provided outside the outer housing 101 or may be a switch located inside the outer housing 101 . If the switch is located inside the outer housing 101 , the switch is indirectly pressed down by the switch part 103 at the surface of the outer housing 101 being pressed down. For this example, the description will assume that the switch of the switch part 103 is located inside the outer housing 101 .
  • the aerosol generating device 100 may further include a terminal (not shown in the figure).
  • the terminal may be an interface for connecting the aerosol generating device 100 to, for example, an external power source. If the aerosol generating device 100 includes a rechargeable battery as its power source, an external power source may be connected to the terminal so that the external power source can flow currents to the power source and charge the power source. Also, data associated with operations of the aerosol generating device 100 may be transmitted to an external device through connection of the terminal with a data transmission cable.
  • FIG. 9 is a schematic sectional side view of one example of the flavor generating article 200 .
  • the flavor generating article 200 includes a smokable material 201 , a tubular member 204 , a hollow filter portion 206 , and a filter portion 205 .
  • the smokable material 201 is wrapped by a first wrapping paper 202 .
  • the tubular member 204 , the hollow filter portion 206 , and the filter portion 205 are wrapped by a second wrapping paper 203 differing from the first wrapping paper 202 .
  • the second wrapping paper 203 also wraps a part of the first wrapping paper 202 that wraps the smokable material 201 .
  • the second wrapping paper 203 may be omitted, and the tubular member 204 , the hollow filter portion 206 , and the filter portion 205 may be coupled to the smokable material 201 using the first wrapping paper 202 .
  • a lip release agent 207 for facilitating the separation of the lip of a user from the second wrapping paper 203 is applied to the outer surface of the second wrapping paper 203 around the end portion on the filter portion 205 side.
  • the portion of the flavor generating article 200 to which the lip release agent 207 is applied functions as a mouthpiece of the flavor generating article 200 .
  • the smokable material 201 includes the above described “reconstituted tobacco material” as a tobacco flavor source.
  • the first wrapping paper 202 for wrapping the smokable material 201 may be an air-permeable sheet member.
  • the tubular member 204 may be a paper pipe or a hollow filter. This example assumes that the flavor generating article 200 includes the smokable material 201 , the tubular member 204 , the hollow filter portion 206 , and the filter portion 205 , but the flavor generating article 200 is not limited to such a configuration.
  • the hollow filter portion 206 may be omitted, and the tubular member 204 and the filter portion 205 may be disposed adjacent to each other.
  • FIG. 10 is a sectional view of the aerosol generating device 100 taken along the line III-III shown in FIG. 8 B .
  • an inner housing 110 (corresponding to an example of a casing) is provided inside the outer housing 101 of the aerosol generating device 100 .
  • the inner housing 110 is, in one example, made of a resin such as, in particular, polycarbonate (PC), an acrylonitrile-butadiene-styrene (ABS) resin, polyether ether ketone (PEEK), or a polymer alloy containing multiple kinds of polymers, or may be made of a metal such as aluminum.
  • the inner housing 110 is preferably made of PEEK from the viewpoint of heat resistance and strength.
  • a power source unit 120 and the atomization unit 130 are provided in the internal space of the inner housing 110 .
  • the power source unit 120 includes a power source 121 .
  • the power source 121 may be, for example, a rechargeable battery or a non-rechargeable battery.
  • the power source 121 is electrically connected to the atomization unit 130 .
  • the power source 121 is thus able to supply power to the atomization unit 130 so as to appropriately heat the flavor generating article 200 .
  • the atomization unit 130 includes, as shown in FIG. 10 , a metal chamber 150 (corresponding to an example of a tubular portion) extending in the insertion direction of the flavor generating article 200 (in the Z-axis direction), a heater 140 covering a part of the chamber 150 , a heat insulating portion 132 , and a substantially tubular insertion guide member 134 (corresponding to an example of a guide portion) adjacent to an opening of the chamber 150 .
  • the chamber 150 is formed in such a configuration as to surround the periphery of the flavor generating article 200 .
  • the heater 140 is formed to include a heating portion which contacts the outer circumferential surface of the chamber 150 and heats the flavor generating article 200 inserted into the chamber 150 .
  • a bottom member 136 (corresponding to an example of an abutting portion) is provided at the bottom of the chamber 150 .
  • the bottom member 136 may function as a stopper for positioning the flavor generating article 200 , by abutting the flavor generating article 200 inserted into the chamber 150 in the insertion direction of the flavor generating article 200 .
  • the chamber 150 and the bottom member 136 constitute an accommodating portion for accommodating at least a part of the flavor generating article 200 .
  • the bottom member 136 may be formed of, for example, a resin material.
  • the bottom member 136 may have an irregularity in its surface that contacts the flavor generating article 200 , so that a first air flow path for supplying air to an air inlet of the flavor generating article 200 (namely, an air flow path communicating with the flavor generating article 200 accommodated in the accommodating portion) is defined.
  • the bottom member 136 is, in one example, made of a resin such as, in particular, polycarbonate (PC), an acrylonitrile-butadiene-styrene (ABS) resin, polyether ether ketone (PEEK), or a polymer alloy containing multiple kinds of polymers, or may be made of a metal such as aluminum.
  • the bottom member 136 is preferably made of a material with a low thermal conductivity in order to prevent heat from being transferred to the heat insulating portion 132 , etc.
  • the heat insulating portion 132 has a substantially tubular shape as a whole and is disposed to cover the chamber 150 .
  • the heat insulating portion 132 may include, for example, an aerogel sheet.
  • the insertion guide member 134 is provided between the slide cover 102 at the closed position and the chamber 150 .
  • the insertion guide member 134 is, in one example, made of a resin such as, in particular, polycarbonate (PC), an acrylonitrile-butadiene-styrene (ABS) resin, polyether ether ketone (PEEK), or a polymer alloy containing multiple kinds of polymers.
  • the insertion guide member 134 may be formed of metal, glass, ceramic, or the like.
  • the insertion guide member 134 is preferably made of PEEK.
  • the insertion guide member 134 communicates with the outside of the aerosol generating device 100 while the slide cover 102 is located at the open position, and guides the flavor generating article 200 for insertion into the chamber 150 by inserting the flavor generating article 200 into the insertion guide member 134 .
  • easy insertion of the flavor generating article 200 into the chamber 150 is enabled.
  • the aerosol generating device 100 further includes a first holding portion 137 and a second holding portion 138 for holding both ends of the chamber 150 and the heat insulating portion 132 .
  • the first holding portion 137 is disposed so as to hold the end portions of the chamber 150 and the heat insulating portion 132 on the z-axis negative direction side.
  • the second holding portion 138 is disposed so as to hold the end portions of the chamber 150 and the heat insulating portion 132 on the slide cover 102 side (on the Z-axis positive direction side).
  • a production method for a tobacco flavored liquid for use in an aerosol-generating flavor inhaler including:
  • ⁇ A2> The method according to ⁇ A1>, wherein the distilling is conducted at a temperature higher than 100° C.
  • ⁇ A3> The method according to ⁇ A1> or ⁇ A2>, wherein the distilling is conducted at a temperature equal to or above the boiling point of the first liquid minus 40° C.
  • ⁇ A4> The method according to any one of ⁇ A1> to ⁇ A3>, wherein the first liquid is propylene glycol, glycerin, 1,3-propanediol, diacetin, polyethylene glycol, or any mixture thereof.
  • ⁇ A5> The method according to any one of ⁇ A1> to ⁇ A4>, wherein the first liquid is propylene glycol, glycerin, or a mixture of propylene glycol and glycerin.
  • ⁇ A6> The method according to any one of ⁇ A1> to ⁇ A5>, wherein the distilling is conducted at a temperature in a range of 150 to 180° C.
  • ⁇ A7> The method according to any one of ⁇ A1> to ⁇ A6>, wherein the distilling is conducted under atmospheric pressure.
  • ⁇ A8> The method according to any one of ⁇ A1> to ⁇ A7>, further including adding a second liquid which serves as an aerosol source to the tobacco material before the heating.
  • ⁇ A9> The method according to ⁇ A8>, wherein the second liquid is propylene glycol, glycerin, 1,3-propanediol, diacetin, polyethylene glycol, or any mixture thereof.
  • ⁇ A10> The method according to ⁇ A8> or ⁇ A9>, wherein the second liquid is propylene glycol, glycerin, or a mixture of propylene glycol and glycerin.
  • ⁇ A11> The method according to any one of ⁇ A8> to ⁇ A10>, wherein the second liquid is added in an amount of 0.1 to 20 mL per 10 g of the tobacco material.
  • ⁇ A12> The method according to any one of ⁇ A1> to ⁇ A11>, wherein the heating is conducted at a temperature of 150 to 400° C.
  • ⁇ A13> The method according to any one of ⁇ A1> to ⁇ A12>, wherein the heating is conducted at a temperature of 160 to 230° C.
  • ⁇ A14> The method according to any one of ⁇ A1> to ⁇ A13>, wherein the heating is conducted for 5 to 60 minutes, preferably 10 to 30 minutes.
  • ⁇ A15> The method according to any one of ⁇ A1> to ⁇ A14>, wherein the heating is conducted by supplying heated air to the tobacco material.
  • ⁇ A16> The method according to any one of ⁇ A1> to ⁇ A15>, wherein the heating is conducted by supplying heated air to the tobacco material via a porous member (preferably a porous plate).
  • ⁇ A17> The method according to any one of ⁇ A1> to ⁇ A16>, wherein the dissolving is conducted by causing bubbling of the gas containing the flavor components in the first liquid.
  • ⁇ A18> The method according to any one of ⁇ A1> to ⁇ A17>, wherein the dissolving is conducted by causing bubbling of the gas containing the flavor components in the first liquid via a porous member (preferably a porous filter).
  • ⁇ A19> The method according to any one of ⁇ A1> to ⁇ A18>, wherein the dissolving is conducted by causing bubbling of the gas containing the flavor components in the first liquid in which multiple beads are dispersed.
  • ⁇ A20> The method according to ⁇ A19>, wherein the beads have a diameter of 1 to 5 mm.
  • ⁇ A21> The method according to any one of ⁇ A1> to ⁇ A20>, wherein the tobacco material is cut tobacco.
  • ⁇ B1> The tobacco flavored liquid obtainable by the method according to any one of ⁇ A1> to ⁇ A21>.
  • ⁇ C1> A flavor inhaler including the tobacco flavored liquid according to ⁇ B1>.
  • a flavor inhaler including the tobacco flavored liquid according to ⁇ B1> and an atomization unit for atomizing the tobacco flavored liquid.
  • a flavor inhaler including the tobacco flavored liquid according to ⁇ B1> and an atomization unit for heating the tobacco flavored liquid to atomize the tobacco flavored liquid.
  • a reconstituted tobacco material including:
  • ⁇ D2> The reconstituted tobacco material according to ⁇ D1>, wherein the reconstituted tobacco material is a tobacco molded body obtained by molding a material containing the tobacco flavored liquid and the post-heating tobacco material.
  • ⁇ D3> The reconstituted tobacco material according to ⁇ D2>, wherein the tobacco molded body is sheet tobacco or tobacco granules.
  • ⁇ E1> A flavor inhaler including the reconstituted tobacco material according to any one of ⁇ D1> to ⁇ D3>.
  • a flavor inhaler including the reconstituted tobacco material according to any one of ⁇ D1> to ⁇ D3> and an atomization unit for atomizing a liquid component contained in the reconstituted tobacco material.
  • a flavor inhaler including the reconstituted tobacco material according to any one of ⁇ D1> to ⁇ D3> and an atomization unit for heating a liquid component contained in the reconstituted tobacco material to atomize the liquid component.
  • Example 1 over-time changes in the color of the tobacco flavored liquid were examined.
  • Glycerin was added to a tobacco material (cut tobacco) in an amount of 10 mass % based on the tobacco material.
  • the obtained tobacco material was heated at 180° C. for 10 minutes using a heating device as shown in FIG. 2 .
  • a “flavor component-containing gas” was thus obtained.
  • the flavor component-containing liquid was distilled at 170° C. The distillation was conducted under atmospheric pressure. The distillation yielded a “tobacco flavored liquid”. It was confirmed that the obtained tobacco flavored liquid had an equivalent smoking flavor to that of the flavor component-containing liquid.
  • the tobacco flavored liquid was put in a vial container and stored for 2 months at 40° C. and under atmospheric pressure.
  • the flavor component-containing liquid was stored using the same conditions.
  • the color of the tobacco flavored liquid was evaluated by measuring absorbance over a range of 570 to 690 nm. More specifically, absorbance was measured for each of the tobacco flavored liquid before storage, the tobacco flavored liquid after storage, the flavor component-containing liquid before storage, and the flavor component-containing liquid after storage. The magnitude of change was calculated using the following formula based on measured absorbance values.
  • the horizontal axis represents the wavelengths from 570 to 690 nm
  • the vertical axis represents the magnitude of change.
  • the wavelengths of 570 to 690 nm correspond to wavelengths from near yellow to near red, and they are assumed to be a band of wavelengths that affects the color changes of the flavor component-containing liquid and the tobacco flavored liquid.
  • a value of the magnitude of change being closer to 1 indicates that the change in color of the tobacco flavored liquid is more comparable with that of the flavor component-containing liquid.
  • a value of the magnitude of change being beyond 1 and greater indicates that the change in color of the tobacco flavored liquid is smaller than that of the flavor component-containing liquid.
  • the tobacco flavored liquid did not show color changes after storage as compared to the flavor component-containing liquid.
  • the results demonstrate that the causative substances responsible for color change were removed from the flavor component-containing liquid by the distillation, and the tobacco flavored liquid contained almost no such causative substances for color change. It was also suggested that the tobacco flavored liquid would hardly cause an over-time alteration of the contained components and that the smoking flavor has been stably conserved.
  • Example 2 the content of a sulfur-containing component in the tobacco flavored liquid after storage was examined.
  • a tobacco flavored liquid was prepared in the same manner as in Example 1.
  • the tobacco flavored liquid was put in a vial container and stored for 1 month or 2 months at 40° C. and under atmospheric pressure.
  • the flavor component-containing liquid was stored using the same conditions.
  • a methanethiol content and a dimethyl trisulfide content were measured for each of the tobacco flavored liquid before storage, the tobacco flavored liquid after 1-month storage, the tobacco flavored liquid after 2-month storage, the flavor component-containing liquid before storage, the flavor component-containing liquid after 1-month storage, and the flavor component-containing liquid after 2-month storage.
  • GC-MS (Agilent, 5977B) was employed for the measurement.
  • Samples were introduced using a thermal desorption introduction system (GERSTEL TDS3).
  • An area ratio of methanethiol to the internal standard material and an area ratio of dimethyl trisulfide to the internal standard substance were summed, and the obtained total value was adopted as the “content of the sulfur-containing component”.
  • FIG. 12 The results are shown in FIG. 12 .
  • “0M” represents before storage
  • “1M” represents after 1-month storage
  • “2M” represents after 2-month storage.
  • the vertical axis in FIG. 12 represents the content of the sulfur-containing component by a relatively expressed value on the assumption that the content of the sulfur-containing component in the flavor component-containing liquid before storage is 1.
  • the sulfur-containing component is not a causative substance responsible for color change, but since it gives an undesirable aroma, its content should preferably be kept low.
  • the tobacco flavored liquid before storage had a smaller content of the sulfur-containing component than the flavor component-containing liquid before storage. Moreover, while the flavor component-containing liquid after storage showed an increased content of the sulfur-containing component, the tobacco flavored liquid after storage showed a reduced content of the sulfur-containing component. It can be seen from these results that the tobacco flavored liquid involves a smaller amount of the sulfur-containing component after storage as well and it can provide an excellent smoking flavor to users.

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  • General Chemical & Material Sciences (AREA)
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US18/767,997 2022-02-18 2024-07-10 Production method for tobacco flavored liquid, tobacco flavored liquid, reconstituted tobacco material, and flavor inhaler Pending US20240358059A1 (en)

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US5235992A (en) * 1991-06-28 1993-08-17 R. J. Reynolds Tobacco Company Processes for producing flavor substances from tobacco and smoking articles made therewith
WO2006046517A1 (ja) * 2004-10-27 2006-05-04 Japan Tobacco Inc. 喫煙時の刺激・辛みを低減させたタバコ材、香喫味剤、再生タバコ材、タバコ材の製造方法、および香喫味剤の製造方法
KR20080072967A (ko) 2005-01-06 2008-08-07 니뽄 다바코 산교 가부시키가이샤 비연소형 끽연물품용 탄소질 열원 조성물
EP2412396B2 (en) 2009-03-23 2023-10-18 Japan Tobacco, Inc. Non-combustion article for flavor inhalation
CA2925645C (en) 2013-09-30 2018-04-03 Japan Tobacco Inc. Non-burning type flavor inhaler and capsule unit
US20170245543A1 (en) 2016-02-25 2017-08-31 Altria Client Services Llc Method of manufacturing a pre-vapor formulation including volatiles
CN119033161A (zh) 2016-03-30 2024-11-29 菲利普莫里斯生产公司 用于气溶胶生成的吸烟装置及方法
CN110663993B (zh) * 2019-10-10 2022-04-22 福建中烟工业有限责任公司 一种烟草提取物及其制备方法
CN111567850B (zh) * 2020-05-20 2022-06-24 云南瑞升烟草技术（集团）有限公司 适用于加热不燃烧卷烟的天然香料的精细化制备方法
GB202009493D0 (en) * 2020-06-22 2020-08-05 Nicoventures Trading Ltd Delivery systems and compositions for inclusion

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