Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF 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
  • 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
  • A24B15/10—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
  • 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
  • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
• • 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
  • A24F40/42—Cartridges or containers for inhalable precursors
• • 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
  • 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

Definitions

• the present invention relates to a heat-not-burn smoking article and a heat-not-burn smoking system.
• Synthetic tobacco a tobacco material that has been artificially shaped into paper form using leaf tobacco as a raw material, is also called a tobacco sheet.
• known methods for producing tobacco sheets include methods in which they are produced via a sheet-forming (paper making) process, methods in which they are produced via a slurry (casting) process, methods in which they are produced via a rolling (roll) process, and methods in which they are produced via an extrusion molding process.
• tobacco material that has been heated, rather than burned results in smaller amounts of the more harmful compounds that are usually produced during smoking, and tobacco sheets for use in heated tobacco are also in high demand.
• tobacco sheets can be produced, based on the process described above, by combining a tobacco raw material, an aerosol former, and a binder, for example.
• Tobacco sheets produced in this way can be cut into a predetermined size and wrapped with wrapping paper, so that the resulting cut tobacco is inside, forming a cylindrical tobacco rod (PTL 1).
• Cylindrical tobacco rods may also be formed by gathering uncut tobacco sheets (PTL 2-4).
• Conventional heat-not-burn smoking articles such as disclosed in PTL 1-5 above also generally comprise a filter (filter segment) in addition to tobacco-containing segments such as a tobacco rod. This is because the filter acts as a mouthpiece in conventional heat-not-burn smoking articles.
• An acetate filter is often used as such a filter.
• the acetate filter is made up of acetate fibers, and an esterification raw material is used to form acetyl groups in the acetate fibers.
• the esterification raw material is a petroleum derived raw material produced by chemical synthesis from petroleum, and the use of such petroleum derived raw material may cause an increased environmental burden.
• acetyl cellulose is dissolved in acetone and the resulting solution is spun by spraying through narrow holes then dried using hot air to form fibers.
• Solvents for dissolving acetyl cellulose, and additives such as plasticizers also include substances which are harmful to the human body, and the use of these substances could also increase the environmental burden.
• filters such as acetate filters are members which could have a greater environmental burden due to the use of the raw materials and substances mentioned above, and it would be desirable to reduce the amount of use of these filters, better still not to use these filters, from the perspective of reducing the environmental burden.
• the inventors of this application found that the use of a heat-not-burn smoking article including a tobacco-containing segment but not including a filter segment, etc. offers various advantages, namely a limited environmental burden, the lack of a need for a step of combining a filter segment with a tobacco-containing segment, and the possibility of compact packaging.
• the problem addressed by the present invention lies in providing a novel heat-not-burn smoking article that does not employ a filter segment, etc., unlike a conventional article.
• the heat-not-burn smoking article according to the present invention is a novel heat-not-burn smoking article which does not employ a filter segment, etc., unlike a conventional article, and thus offers various advantages, namely a limited environmental burden, the lack of a need for a step of combining a filter segment with a tobacco-containing segment, and the possibility of compact packaging.
• the heat-not-burn smoking article includes a tobacco-containing segment but does not include a cooling segment and a filter segment.
• the heat-not-burn smoking article according to the present invention does not employ a filter segment, etc., as mentioned above, and thus offers various advantages, namely a limited environmental burden, the lack of a need for a step of combining a filter segment with a tobacco-containing segment, and the possibility of compact packaging.
• the heat-not-burn smoking article may comprise a tobacco-containing segment.
• the tobacco-containing segment may include a tobacco filling material or may consist of a tobacco filling material.
• the tobacco filling material may include a sheet or may consist of a sheet.
• sheet means a shape having a pair of substantially parallel main faces and a side face.
• the sheet may have a length direction, a width direction and a thickness direction, the sizes of which may be in the following order: “thickness direction size (thickness)” ⁇ "width direction size (width)” ⁇ “length direction size (length).”
• wound sheet means a sheet which has been rolled up into a scroll shape.
• the wound sheet is preferably formed by rolling up the sheet in the length direction thereof to a scroll shape.
• a scroll shape By rolling up the sheet in the length direction thereof to form a scroll shape, the user can enjoy the act of making the sheet compact.
• the wound sheet is preferably rolled up in such a way that there is no misalignment between turns of the sheet in the width direction.
• misalignment between turns of the sheet in the width direction means that any misalignment in the width direction is no greater than 50% of the size of the sheet in the width direction. It is possible to achieve uniform heat transfer to the sheet by ensuring that there is no misalignment between turns of the sheet in the width direction.
• the misalignment between turns of the wound sheet in the width direction may also be 0.01-50%, 0.1-40%, or 0.5-10% of the size of the sheet in the width direction.
• the unwound sheet may have a first face and a second face.
• the first face may face outward (the opposite way to the center of the scroll), and the second face may face inward (toward the center of the scroll).
• the area of the first face of the wound sheet is preferably 100-2000 mm 2 , more preferably 250-1750 mm 2 , and most preferably 500-1500 mm 2 .
• the area of the first face being within this numerical value range makes it easier for residues of the smoking article after smoking to be removed from a recess of a heating device.
• the wound sheet when the wound sheet is heated inside the recess of a heating device which will be described later, the heat from the heating device will spread from the outside to the inside of the sheet, and heat will eventually be transferred to the center of the wound sheet. Furthermore, the wound sheet tends to expand outward, trying to return to its original state from the rolled-up state, and this tendency also persists during heating inside the recess of the heating device, so it is thought that the entirety of the first face of the wound sheet will eventually be able to contact the inside of the recess of the heating device. Accordingly, the area of the first face of the wound sheet may serve as an indicator relating to contact with the inside of the recess of the heating device, and a greater area of the first face is thought to increase contact with the inside of this recess.
• the number of turns of the wound sheet may be calculated by: (length of unwound sheet) / ⁇ (diameter of circle forming outermost side of circular cross section of wound sheet) ⁇ ( ⁇ ) ⁇ , or by (length of unwound sheet) / ⁇ (inner diameter of circular (cylindrical) cross section of recess of heating device into which wound sheet is inserted) ⁇ ( ⁇ ) ⁇ .
• the number of turns being within this numerical value range makes it easier for residues of the smoking article after smoking to be removed from the recess of the heating device.
• the number of turns of the wound sheet is calculated on the assumption that the sheet as a whole expands outward to a state where it follows the inside of the recess of the heating device. Similarly to the area of the first face of the wound sheet, the number of turns of the wound sheet may serve as an indicator relating to contact with the inside of the recess of the heating device, and a greater number of turns is thought to increase contact with the inside of this recess.
• the diameter of the circle forming the outermost side of a circular cross section of the wound sheet is preferably 5-20 mm, more preferably 7.5-15 mm, and most preferably 8.5-12 mm.
• the diameter being within this numerical value range enables the sheet to be inserted into a device (heating device) simply by a manual operation, without the use of an implement such as a pair of tweezers.
• the tobacco-containing segment may include a tobacco filling material and a wrapping paper (also referred to below as a "wrapper"), or it may consist of a tobacco filling material and a wrapping paper.
• the wrapper may be filled with the tobacco filling material.
• the wrapper may be filled with the tobacco filling material.
• the method for filling the wrapper with the tobacco filling material and the tobacco filling material may be enclosed in the wrapper or a cylindrical wrapper may be filled with the tobacco filling material.
• the wrapper may be filled in such a way that the direction of winding of the sheet (the longitudinal direction) is aligned with the circumferential direction of the cylindrical wrapper.
• Fig. 1 shows an example of the wound sheet.
• a smoking composition sheet or material derived therefrom (tobacco sheet) 210 comprises a first face (main face) 210A, and a second face (main face) (not depicted) on the opposite side to the first face.
• the smoking composition sheet or material derived therefrom (tobacco sheet) 210 is rolled up into a scroll shape in the length direction of the sheet so that the first face 210A faces outward, and is rolled up so that there is no misalignment in the width direction.
• fig. 2 shows an example of a tobacco-containing segment consisting of the wound sheet and the wrapper.
• a wrapper 220 is filled with the smoking composition sheet or material derived therefrom (tobacco sheet) 210 in such a way that the direction of winding of the sheet (longitudinal direction) is aligned with the circumferential direction of the cylindrical wrapper 220.
• the thickness of the sheet contained in the tobacco filling material is preferably 30-2000 ⁇ m, more preferably 50-1000 ⁇ m, and most preferably 70-500 ⁇ m.
• the thickness of the sheet being within this numerical value range enables the wound sheet to exert a suitable degree of force in attempting to return to its original state when the sheet has been inserted into the heating device.
• the width of the sheet contained in the tobacco filling material is preferably 5-30 mm, more preferably 7.5-20 mm, and most preferably 8.5-17.5 mm.
• the width of the sheet being within this numerical value range makes the sheet easier to manipulate with the fingertips.
• the length of the sheet contained in the tobacco filling material is preferably 20-150 mm, more preferably 30-120 mm, and most preferably 40-100 mm.
• the length of the sheet being within this numerical value range enables the sheet to be suitably wound.
• the cross-sectional shape of the sheet contained in the tobacco filling material there is no particular limitation as to the cross-sectional shape of the sheet contained in the tobacco filling material, and it may be a quadrilateral shape such as a rectangle, a diamond shape, or elliptical. Of these, a quadrilateral shape is preferred. The use of a quadrilateral shape makes it possible to achieve uniform heat transfer.
• the sheet can further comprise an aerosol former.
• the aerosol former can comprise or consist of, but is not particularly limited to: polyols such as glycerol, 1,2-propanediol, and 1,3-propanediol; fatty acids such as medium-chain fatty acids and palmitic acid; or a mixture of two or more thereof. Of these, polyols are preferred. The use of a polyol enables stable smoke generation.
• the content of the aerosol former (included in the sheet) based on the entire sheet is not particularly limited, but is preferably 10 to 80 wt%, more preferably 15 to 60 wt%, and most preferably 15 to 30 wt%.
• the aerosol former content being within this numerical value range will permit a suitable number of smokes of up to 10-20 times.
• the sheet can comprise or consist of, but is not particularly limited to, plant raw material-derived fibers, binders, aerosol formers, or combinations of two or more of these. Of these, the use of plant raw material-derived fibers is preferred. The use of plant raw material-derived fibers will allow the skeleton structure of the sheet to be formed.
• the sheet can comprise or consist of, but is not particularly limited to, tobacco raw materials, herb-based plants, citrus fruits, or combinations of two or more of these. Of these, a tobacco raw material is preferred.
• tobacco raw materials will enable a reduction in the amount of externally added binder because the polysaccharides contained in the tobacco raw material will function as a binder.
• the above tobacco raw material is raw material derived from a tobacco plant, such as tobacco leaf, aged tobacco leaf, cut tobacco, tobacco powder, tobacco raw material parts other than leaves, such as stems and stem waste, and processed or waste products obtained in the course of tobacco raw material processing.
• Tobacco leaf is a generic term for harvested tobacco leaves before they have been aged.
• One mode of ageing includes curing. Cut tobacco is aged tobacco leaf, for example, that has been cut to a predetermined size.
• Tobacco powder is tobacco leaves, for example, that have been ground.
• a number of varieties of tobacco can be used as the tobacco raw material.
• tobacco varieties include flue-cured, Burley, orient, or native varieties, as well as Nicotiana tabacum and Nicotiana rustica varieties. These varieties can also be used alone, but in order to obtain a desired flavor, any varieties over the course from the harvest of tobacco leaves to the processing of the various types in which aged tobacco leaf is used in heat-not-burn tobacco products (specifically, processed tobacco leaves) can also be blended for use. Details on tobacco varieties are disclosed in "Dictionary of Tobacco, Tobacco Academic Studies Center, March 31, 2009".
• tobacco leaf is a generic term for harvested tobacco leaves before they have been aged.
• One mode of ageing includes curing.
• aged tobacco leaf refers to tobacco leaves that have been aged but that have not yet been processed into the various forms that are used in tobacco products (such as cut tobacco, tobacco sheets, and tobacco granules).
• processed tobacco leaf refers to aged tobacco leaves that have been processed into the various forms that are used in tobacco products.
• the sheet can be obtained in the form of a tobacco sheet by molding a composition comprising aged tobacco leaf, for example, into the form of a sheet.
• a composition comprising aged tobacco leaf, for example, into the form of a sheet.
• aged tobacco leaf used in the tobacco sheet, but aged tobacco leaf which has been de-stemmed and separated into lamina and midrib may be cited, for example.
• a "sheet” as referred to in the present description means a shape having a pair of substantially parallel main faces and a side face.
• the method for molding the sheet is not particularly limited, but fine tobacco powder, nicotine, a flavour development aid, and a binder, as well as an aerosol former and flavoring as needed, can be mixed, water can be added to the mixture to knead the materials, and the resulting kneaded product can be molded by a known method such as a sheet-forming method, casting method, or rolling method. Details on various types of sheets (tobacco sheets) molded by such methods are disclosed in " Dictionary of Tobacco, Tobacco Academic Studies Center, March 31, 2009 ".
• the sheet can furthermore comprise antioxidants, terpenes, menthol, or a combination of two or more of these.
• antioxidants terpenes
• menthol a combination of two or more of these.
• the use of menthol is preferred. The use of menthol will allow invigorating smoking to be enjoyed.
• the heat-not-burn smoking system of the present invention comprises the heat-not-burn smoking article.
• Heat-not-burn smoking articles may be heated by a heating device that is separate from the article, or by a heating device that is integrated with the article.
• the heat-not-burn smoking article and the heating device are collectively referred to as a "heat-not-burn smoking system.”
• An example of a heat-not-burn smoking system will be described below with reference to fig. 3-5 .
• the electrically heated tobacco product may be cited as an embodiment of the heat-not-burn smoking system according to the present invention.
• the electrically heated tobacco product comprises a housing and a mouthpiece.
• the housing extends in the axial direction and an opening is formed in a first end portion in the axial direction.
• the housing is formed with an accommodating space in its interior, communicating with the opening.
• Heat-not-burn tobacco a heat-not-burn smoking article (cartridge) containing a flavor component is accommodated in the accommodating space of the housing.
• the mouthpiece comprises an engaging portion and a holding portion. The engaging portion is engaged with the opening.
• the holding portion is configured to hold the heat-not-bum tobacco.
• the mouthpiece is detached from the housing and engagement of the engaging portion of the mouthpiece and the opening of the housing is released when the heat-not-burn tobacco (cartridge) is replaced.
• the cartridge is then removed from the housing from which the mouthpiece has been detached, and the cartridge is replaced.
• the mouthpiece is configured to extend to both sides of the opening in the axial direction in a state in which the mouthpiece is engaged with the opening. According to this mode, the part of the mouthpiece protruding further outward than the opening of the housing should be grasped when the mouthpiece is detached from the housing, which therefore facilitates the operation to detach the mouthpiece.
• the heat-not-burn smoking system of the present invention may further comprise a heating device.
• the heating device may comprise or consist of the housing and the mouthpiece.
• Fig. 3 is an oblique view of an electrically heated tobacco product (flavor inhaler, also referred to below simply as an "inhaler") according to an embodiment of the present invention, and is an oblique view in a state in which a cap (not depicted) has been removed from the inhaler.
• flavor inhaler also referred to below simply as an "inhaler”
• an inhaler 1 constituting an example of the electrically heated tobacco product according to a first embodiment allows the flavor of tobacco leaf to be enjoyed by inhalation of a vapor generated by heating the tobacco leaf.
• the inhaler 1 comprises a main body unit 10, a cartridge 20, and a mouthpiece 30.
• the cartridge 20 may be constructed by the abovementioned tobacco-containing segment (smoking segment) 200A.
• the smoking segment 200A is columnar, and the total length (axial length) thereof is preferably 5-100 mm, more preferably 10-50 mm, and even more preferably 10-25 mm, for example.
• the cross-sectional shape of the smoking segment 200A may be circular, elliptical or polygonal, etc., for example.
• the smoking segment 200A comprises: a smoking composition sheet (tobacco sheet) or material derived therefrom (tobacco filling material) 210; and a wrapper 220 wrapped therearound.
• the smoking composition sheet or material derived therefrom 210 may contain a flavoring.
• the smoking composition sheet (tobacco sheet) or material derived therefrom (tobacco filling material) 210 may be formed as a wound sheet, as described above.
• the inhaler 1 has a substantially square columnar shape centered on an axis O.
• the main body unit 10, cartridge 20, mouthpiece 30 and cap 40 are arranged in a line on the axis O.
• a side facing towards the mouthpiece 30 from the main body unit 10 in the axis O direction (the direction following the axis O; axial direction) will be referred to as the mouthpiece side
• a direction running from the mouthpiece 30 toward the main body unit 10 will be referred to as the mouthpiece-opposing side.
• a direction intersecting the axis O as seen on a plane viewed from the axis O direction will be referred to as the radial direction.
• the radial direction includes a direction approaching the axis O, which will be referred to as the inside, and a direction away from the axis O, which will be referred to as the outside.
• a direction circling the axis O will be referred to as the circumferential direction.
• direction means two orientations, and the term “side” will be used to refer to one orientation of the "direction”.
• Fig. 4 is a view in the cross section III-III in fig. 3 .
• the main body unit 10 comprises a housing 11, a power supply unit 15, and a heater 16.
• the housing 11 comprises: a housing main body 110, a mouthpiece support member 120, a cartridge accommodating member 130, a cartridge holding member 140, and a control unit 152.
• the housing main body 110 comprises an outside housing 111 and a bottom portion cap 116.
• the outside housing 111 is formed with a substantially square tube shape centered on the axis O.
• the outside housing 111 forms an outer surface of the inhaler 1. It should be noted that the shape of the outside housing 111 may be appropriately set provided that it extends along the axis O direction.
• a mouthpiece-side opening 111a penetrating in the axis O direction is formed in an end portion on the mouthpiece side of the outside housing 111.
• a mouthpiece side-opposing opening 111b penetrating in the axis O direction is formed in an end portion on the mouthpiece-opposing side of the outside housing 111.
• a switch opening 111c penetrating in the radial direction is formed on a circumferential portion of the outside housing 111.
• a switch 112 is provided in the switch opening 111c.
• radial directions joining the axis O and the switch opening 111c will be taken as front/rear surface directions.
• the switch opening 111c side relative to the axis O will be taken as the front surface side
• the opposite side to the switch opening 111c relative to the axis O will be taken as the rear surface side.
• the bottom portion cap 116 is provided on the mouthpiece side-opposing opening 111b of the outside housing 111.
• the bottom portion cap 116 is formed with a substantially rectangular shape as seen on a plane viewed from the axis O direction.
• the bottom portion cap 116 closes off the mouthpiece side-opposing opening 111b of the outside housing 111. It should be noted that the shape of the bottom portion cap 116 may be appropriately set provided that it closes off the mouthpiece side-opposing opening 111b of the outside housing 111.
• An inside tube member 117 is provided inside the housing main body 110.
• the inside tube member 117 extends in the axis O direction and is formed with a substantially square tube shape.
• the inside tube member 117 is constructed by joining a pair of half-members divided along the axis O direction.
• the total length (the length along the axis O direction) of the inside tube member 117 may be smaller than the total length of the outside housing 111. It should be noted that the shape of the inside tube member 117 may be appropriately set.
• a partition 118 is provided so as to separate the inside of the inside tube member 117 into a space for accommodating a battery 151 and a space for accommodating a heater 16.
• the partition 118 includes a mouthpiece-side partition portion 118a and a side portion partition portion 118b. This inhibits an inflow of air heated by means of the heater 16 into the space accommodating the battery 151. A rise in the temperature of the battery 151 is therefore suppressed.
• the mouthpiece-type partition portion 118a is arranged on the mouthpiece side of the battery 151.
• the side portion partition portion 118b is arranged so as to cover the outside of the battery 151 in the circumferential direction.
• the mouthpiece support member 120 is provided at the mouthpiece-side opening 111a of the outside housing 111.
• the cartridge holding member 140 of the housing 11 may form the abovementioned recess of the heating device.
• the cartridge holding member 140 may be formed with a cylindrical shape.
• the inner diameter of the cartridge holding member 140 (the recess of the heating device), and it is preferably 5.5-20 mm, more preferably 7.5-15 mm, and most preferably 8.5-12 mm.
• the inner diameter of the cartridge holding member 140 being within this numerical value range enables a design commensurate with the size of the smoking segment 200A, thereby making it possible to adjust the ease of removing residues of the smoking article from the recess of the heating device after smoking.
• Fig. 5 is a view in cross section along the width direction of the mouthpiece 30 and cartridge 20 section.
• an engaging circumferential wall portion 33 has a mouthpiece side-opposing part 331 which is thinner than a mouthpiece-side part 332.
• a step portion 333 is formed at a boundary portion of the mouthpiece side-opposing part 331 and the mouthpiece-side part 332.
• the step portion 333 is formed with a substantially annular shape as seen on a plane viewed from the axis O direction.
• an end portion 20a on the mouthpiece side of the cartridge 20 abuts the step portion 333 of the engaging circumferential wall portion 33 of the mouthpiece 30.
• the opening width becomes larger from the mouthpiece side toward the mouthpiece-opposing side at a connection between a mouthpiece portion 31 and a base portion 32.
• a space portion s3 is formed between the end portion 20a on the mouthpiece side of the cartridge 20, and the face of the mouthpiece portion 31 of the mouthpiece 30 on the mouthpiece-opposing side. This reduces the size of an obstructed region at the end portion 20a on the mouthpiece side of the cartridge 20 so that airflow resistance is suppressed.
• a support body 21 such as a plastic mesh may be provided on the cartridge 20 side (mouthpiece-opposing side) of the mouthpiece 30 in order to prevent spillage of heated material.
• the temperature of heating produced by the heater 16 is preferably 400°C or less, more preferably 150-400°C, and even more preferably 200-350°C.
• the heating temperature denotes the temperature of the heater 16.
• the method of heating using the heating device and induction heating or microwave heating, for example, can be employed in addition to heating by the heater noted above.
• tobacco raw material (1) 10 g of flue-cured tobacco leaf, 10 g of carboxymethyl cellulose, and 80 g of glycerol were mixed to obtain a tobacco raw material (1).
• tobacco sheets of samples 1 and 2 were produced in accordance with a well-known rolling method so as to have a length of 45 mm or 100 mm, respectively.
• tobacco raw material (2) 35 g of flue-cured tobacco leaf, 35 g of carboxymethyl cellulose, and 30 g of glycerol were mixed to obtain a tobacco raw material (2).
• tobacco sheets of samples 3 and 4 were produced in accordance with a well-known rolling method so as to have a length of 45 mm or 100 mm, respectively.
• the tobacco sheets of samples 1-6 obtained in the manner above were then rolled up in the length direction to form a scroll shape while ensuring no misalignment in the width direction, whereby wound tobacco sheets were prepared.
• the diameter of the circle forming the outermost side of the circular cross section of the wound sheet was measured for each of the wound tobacco sheets of samples 1-6 obtained in the manner above, and was found to be 6.9 mm for all tobacco sheets.
• the glycerol content, and thickness, width and length of the unwound tobacco sheets are shown in table 1 for each of the tobacco sheets of samples 1-6 obtained in the manner above.
• the area of the first face facing outward was calculated based on (width ⁇ length), and the number of turns was also calculated on the basis of (length of unwound sheet) / ⁇ (inner diameter (10 mm) of circular (cylindrical) cross section of recess of heating device into which wound sheet is inserted) ⁇ ( ⁇ ) ⁇ .
• the calculated values are shown in table 1.
• the thickness of the tobacco sheets shown in table 1 is a value obtained by selecting any four points on each tobacco sheet without bias, then measuring the thickness at each point using a digital external micrometer M810-25 (manufactured by Mitutoyo Corp.) and averaging the measured values at the four points.
• Table 1 Tobacco sheet Heating temp.
• Wrapping papers were filled with the wound tobacco sheets of samples 1-6 obtained in the manner above in a state in which the length direction of the sheets was aligned with the circumferential direction of the wrappers, and tobacco filling materials of samples 1-6 were obtained.
• the resulting tobacco filling materials of samples 1-6 were formed into tobacco-containing segments (smoking segments), and heat-not-burn smoking articles (cartridges) 20, as shown in fig. 3-5 , were prepared without using a cooling segment and a filter segment. Meanwhile, the electrically heated tobacco product (inhaler) 1 (cartridge holding member 140: cylindrical shape, inner diameter: 10 mm) shown in fig. 3 was prepared.
• the heat-not-burn smoking articles according to samples 1-6 and the electrically heated tobacco product were used for installation in the external heat-not-burn smoking system shown in fig. 3 and 4 .
• the smoking test was carried out by placing a smoking machine (1-port smoking machine, manufactured by Borgwaldt) next to the mouthpiece, then heating the heat-not-burn smoking article by means of a heater set at the temperatures shown in table 1 (200, 210 or 240°C) to generate vapor and aerosol which were then drawn in by the smoking machine.
• a total of 10 puffs were taken based on the CIR method (Canadian Intense Smoking Regime) at 55 mL/2 sec per puff (with 30 second intervals for each puff, i.e., 2 seconds of drawing followed by 28 seconds standby).
• the mouthpiece 30 was detached from the main body unit 10 after the smoking test in "Preparation of heat-not-burn smoking article and smoking test" above had been carried out.
• the cartridge holding member 140 (forming the recess of the heating device) of the electrically heated tobacco product (inhaler) 1 was then left to stand in a position such that the longitudinal direction of the cartridge holding member 140 was in a direction perpendicular to the surface of the ground with the inlet of the cartridge holding member 140 facing downward.
• the ease of removal of the heat-not-burn smoking article left in that position was then evaluated in accordance with the following criteria. The results are shown in Table 1.
• the heat-not-burn smoking article can be removed from the cartridge holding member 140 of the electrically heated tobacco product (inhaler) 1 without the use of an implement such as a pair of tweezers even when evaluation criterion B below applies, therefore enabling adequate use as a heat-not-burn smoking article, but the used heat-not-burn smoking article can be easily removed when evaluation criterion A applies, which is therefore more desirable.
• the evaluation was B when samples 2 and 4 were heated at 200°C, and the evaluations were all otherwise A.
• the results in Table 1 showed that the smoking article becomes easier to remove the higher the heating temperature, the smaller the glycerol content of the tobacco sheet, and/or the smaller the area of the first face of the tobacco sheet. This is thought to be because components of the tobacco sheet having adhesive properties such as glycerol are sufficiently heated by a high heating temperature, leading to a loss of adhesion and less likelihood of adhesion to the inner wall of the recess. This is also thought to be because, as glycerol has adhesive properties, a smaller content of glycerol will proportionately reduce the adhesive components, making adhesion to the inner wall of the recess less likely. It is further thought to be because the area of the tobacco sheet in contact with the recess decreases when the first face of the tobacco sheet has a small area, leading to less friction between the recess and the tobacco sheet residues after the end of heating.
• the heat-not-burn smoking article according to the present invention constitutes a novel heat-not-burn smoking article that does not employ a filter segment, etc., unlike a conventional article, and is therefore useful as a heat-not-burn smoking article.

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• 2022
  • 2022-12-12 KR KR1020257019332A patent/KR20250108683A/ko active Pending
  • 2022-12-12 WO PCT/JP2022/045648 patent/WO2024127455A1/ja not_active Ceased
  • 2022-12-12 EP EP22968367.7A patent/EP4635326A1/en active Pending
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