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EP4091462A1 - Segment de filtre pour inhalateur d'arôme de type à chauffage sans combustion, inhalateur d'arôme de type à chauffage sans combustion, et système d'inhalation d'arôme de type à chauffage sans combustion - Google Patents

Segment de filtre pour inhalateur d'arôme de type à chauffage sans combustion, inhalateur d'arôme de type à chauffage sans combustion, et système d'inhalation d'arôme de type à chauffage sans combustion Download PDF

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Publication number
EP4091462A1
EP4091462A1 EP20914699.2A EP20914699A EP4091462A1 EP 4091462 A1 EP4091462 A1 EP 4091462A1 EP 20914699 A EP20914699 A EP 20914699A EP 4091462 A1 EP4091462 A1 EP 4091462A1
Authority
EP
European Patent Office
Prior art keywords
segment
combustion heating
flavor inhaler
type flavor
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20914699.2A
Other languages
German (de)
English (en)
Other versions
EP4091462A4 (fr
Inventor
Tetsuya Motodamari
Yasunobu Inoue
Manabu Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP4091462A1 publication Critical patent/EP4091462A1/fr
Publication of EP4091462A4 publication Critical patent/EP4091462A4/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives

Definitions

  • the present invention relates to a filter segment for a non-combustion heating-type flavor inhaler, a non-combustion heating-type flavor inhaler, and a non-combustion heating-type flavor inhalation system.
  • a non-combustion heating-type flavor inhaler that utilizes heating instead of burning has been developed in recent years.
  • a non-combustion heating-type flavor inhaler is provided with a tobacco-containing segment that includes a tobacco filler containing tobacco and an aerosol former for generating an aerosol upon heating.
  • a non-combustion heating-type flavor inhaler may further include, for example, a filter segment and/or a cooling segment for cooling a vaporized aerosol former and thereby generating an aerosol (Patent Literature (PTL) 1 to 3).
  • PTL Patent Literature
  • an aerosol is also inhaled together with flavor components, such as nicotine, during use.
  • the present inventors lowered the resistance to draw in a filter segment and thus reduced the filtration of flavor components and an aerosol in order to increase the amounts of the aerosol and flavor components supplied to a user. Consequently, it was found that although the amounts of an aerosol and flavor components supplied to a user increase, a user feels irritation in some cases due to lowering in the proportion of an aerosol relative to flavor components (aerosol/flavor components).
  • an object of the present invention is to provide a filter segment for a non-combustion heating-type flavor inhaler in which the filter segment can increase the proportion of an aerosol relative to flavor components and to provide a non-combustion heating-type flavor inhaler and a non-combustion heating-type flavor inhalation system including such a filter segment.
  • a filter segment for a non-combustion heating-type flavor inhaler is a filter segment for a non-combustion heating-type flavor inhaler, being filled with a sheet, where the filter segment contains an acid.
  • a non-combustion heating-type flavor inhaler includes a tobacco-containing segment and the filter segment for a non-combustion heating-type flavor inhaler.
  • a non-combustion heating-type flavor inhalation system includes the non-combustion heating-type flavor inhaler and a heating device for heating the tobacco-containing segment.
  • a filter segment for a non-combustion heating-type flavor inhaler in which the filter segment can increase the proportion of an aerosol relative to flavor components and to provide a non-combustion heating-type flavor inhaler and a non-combustion heating-type flavor inhalation system including such a filter segment.
  • a filter segment for a non-combustion heating-type flavor inhaler (hereinafter, also referred to as a filter segment) according to the present embodiment is a filter segment filled with a sheet, where the filter segment contains an acid.
  • base components such as nicotine
  • flavor components are trapped selectively in the filter segment, it is possible to increase the ratio of an aerosol to flavor components when supplied to a user, thereby suppressing irritation.
  • Such flavor components preferably include base components and more preferably include alkaloids, such as nicotine.
  • a sheet packed within the filter segment contains an acid inside the sheet.
  • an acid may exist inside a sheet, such as paper.
  • an acid may also be contained, for example, in a tubular wrapper for wrapping around a sheet or in an adhesive, such as glue, used for bonding both ends of such a wrapper when formed into a tubular shape.
  • the filter segment according to the present embodiment may be disposed downstream (mouth side) of a tobacco-containing segment including tobacco and an aerosol former.
  • the sheet is not particularly limited but is preferably a sheet that can incorporate an acid inside.
  • the sheet is preferably porous since an acid can be retained within pores.
  • an acid is liquid at room temperature as described hereinafter, it is possible to retain the liquid acid within pores and thus to suppress leakage of the acid outside the sheet.
  • Examples of such a sheet include wet-laid nonwoven fabrics and dry-laid nonwoven fabrics formed using naturally occurring or synthetic short fibers as the main raw material, and specific examples include paper and nonwoven fabrics.
  • other examples include films having a microporous structure, such as polymer foam films, and specific examples include polyolefin foam films and polyurethane foam films.
  • the sheet is preferably paper in view of affinity with an acid and excellent retainability of the acid.
  • Examples of paper include glassine, paraffin paper, coated paper, and impregnated paper.
  • the sheet itself may or may not exhibit air permeability.
  • the sheet is preferably air impermeable or exhibit low air permeability.
  • the sheet has a thickness of preferably 20 to 120 ⁇ m and more preferably 30 to 80 ⁇ m.
  • the sheet has a thickness of 30 ⁇ m or more, it is possible to retain a sufficient amount of acid inside the sheet. Meanwhile, when the sheet has a thickness of 80 ⁇ m or less, it is possible to ensure satisfactory resistance to draw in the filter segment.
  • the basis weight of the paper is preferably 20 to 120 g/m 2 and more preferably 30 to 80 g/m 2 .
  • the basis weight is 30 g/m 2 or more, it is possible to retain a sufficient amount of acid inside the paper.
  • the basis weight is 80 g/m 2 or less, it is possible to ensure satisfactory air permeability in the filter segment.
  • the packing mode is not particularly limited.
  • the sheet may be provided with a plurality of folds (also referred to as crimps or crepe) in the axial direction of the filter segment, gathered while being corrugated along the folds, and disposed within a wrapper of the filter segment.
  • the intervals between the folds are not particularly limited but may be 0.5 to 2 mm, for example.
  • An acid used in the present embodiment is not particularly limited but may be an edible acid or an organic acid, for example.
  • the acid is preferably liquid at 15°C to 25°C, in other words, at room temperature. This is because an acid that is liquid at room temperature can be applied as it is without dissolving in a solvent, such as water, to a sheet or a wrapper. Moreover, since an acid in the liquid state is retained inside the sheet or wrapper, the acid is distributed uniformly inside the sheet or wrapper, thereby enhancing contact efficiency between the acid and flavor components. Consequently, it is possible to efficiently trap flavor components in the sheet or wrapper.
  • an acid examples include stearic acid, isostearic acid, linoleic acid, oleic acid, palmitic acid, myristic acid, dodecanoic acid, capric acid, benzoic acid, isobutyric acid, propionic acid, adipic acid, acetic acid, vanillylmandelic acid, maleic acid, glutaric acid, fumaric acid, succinic acid, lactic acid, glycolic acid, and glutamic acid.
  • exemplary acids that are liquid at 15°C to 25°C include isostearic acid, linoleic acid, oleic acid, isobutyric acid, propionic acid, acetic acid, and lactic acid. These acids may be used alone or in combination.
  • lactic acid is preferable as an acid in view of the low cost and small effects on flavor due to the low odor.
  • the amount of acid contained in the sheet is preferably 1 to 20 mass%, more preferably 2 to 15 mass%, and further preferably 4 to 12 mass% relative to the mass of the sheet.
  • the amount of acid is 1 mass% or more, it is possible to trap flavor components sufficiently in the sheet. Meanwhile, when the amount of acid is 20 mass% or less, it is possible to suppress bleeding of the acid outside the sheet.
  • a method of incorporating the acid inside the sheet or wrapper is not particularly limited. Exemplary such methods include a method of applying a liquid acid to the surface of a porous sheet or wrapper through coating, spraying, or the like; a method of immersing a porous sheet or wrapper in a liquid acid; a method of impregnating particulate carriers, such as particulate activated carbon, with a liquid acid and then adding to a sheet; and a method of impregnating activated carbon fibers with a liquid acid and then incorporating the resulting activated carbon fibers into a sheet.
  • particulate carriers such as particulate activated carbon
  • the filter segment according to the present embodiment may be a tubular member filled with a sheet and may contain an acid.
  • Fig. 1 illustrates an exemplary filter segment according to the present embodiment.
  • the filter segment 1 illustrated in Fig. 1 includes a sheet 2 containing an acid inside and a tubular wrapper 3 wrapped around the sheet 2.
  • the sheet 2 having a plurality of folds in the axial direction of the filter segment 1, in other words, the horizontal direction in Fig. 1 is gathered while being corrugated along the folds and packed within the wrapper 3. Grooves formed through the gathering extend in the axial direction of the filter segment 1.
  • the sheet 2 is packed like this within the filter segment 1, it is possible to increase the surface area of the sheet 2 while maintaining the passage of an aerosol and flavor components in the axial direction of the filter segment 1 and thus to trap the flavor components efficiently and selectively in the sheet 2.
  • the filter segment has the resistance to draw per segment of preferably 2.5 mmH 2 O/mm or less, more preferably 0.1 to 2.0 mmH 2 O/mm, further preferably 0.2 to 1.5 mmH 2 O/mm, and particularly preferably 0.2 to 0.5 mmH 2 O/mm.
  • the resistance to draw can be changed appropriately by the material, filling density, or the like of a sheet to be packed in the filter segment.
  • the resistance to draw is a value measured by a draw resistance measuring instrument (trade name: SODIMAX from Sodim SAS).
  • the filling density of the sheet within the filter segment is preferably 1 mg/mm 3 or less, more preferably 0.3 to 0.8 mg/mm 3 , and further preferably 0.4 to 0.7 mg/mm 3 .
  • the resistance to draw tends to be 2.5 mmH 2 O or less.
  • the shape of the filter segment is not particularly limited but may be columnar, for example.
  • the perimeter length of the filter segment is preferably 16 to 25 mm, more preferably 20 to 24 mm, and further preferably 21 to 23 mm.
  • the length of the filter segment in the axial direction is preferably 4 to 30 mm, more preferably 5 to 15 mm, and further preferably 5 to 12 mm.
  • the cross-sectional shape of the filter segment is not particularly limited but may be circular, elliptic, or polygonal, for example.
  • a non-combustion heating-type flavor inhaler (hereinafter, also referred to as a flavor inhaler) according to the present embodiment may include a tobacco-containing segment and the filter segment for a non-combustion heating-type flavor inhaler according to the present embodiment. Since the flavor inhaler according to the present embodiment includes the filter segment according to the present embodiment, it is possible to increase the proportion of an aerosol relative to flavor components.
  • the filter segment according to the present embodiment may be disposed downstream (mouth side) of the tobacco-containing segment.
  • the flavor inhaler according to the present embodiment may also include other segments in addition to the tobacco-containing segment and the filter segment according to the present embodiment.
  • the flavor inhaler according to the present embodiment preferably further includes a cooling segment between the tobacco-containing segment and the filter segment according to the present embodiment from a viewpoint of delivering a sufficient amount of aerosol.
  • a cooling segment an aerosol former and flavor components volatilized by heating the tobacco-containing segment are cooled and liquefied partially (aerosol formation).
  • the cooling segment preferably includes a single free-flow channel, in other words, one channel in the axial direction, rather than a plurality of channels, from a viewpoint of preventing excessive removal of flavor components and an aerosol former.
  • such a cooling segment may be a tubular member having a perforation on the peripheral surface.
  • the cooling segment preferably includes a plurality of free-flow channels, in other words, a plurality of channels in the axial direction from a viewpoint of increasing the contact area and thereby enhancing the cooling effect on flavor components and an aerosol former in a short segment length.
  • Fig. 2 illustrates an exemplary flavor inhaler according to a first embodiment of the present invention.
  • the flavor inhaler 4 illustrated in Fig. 2 includes a tobacco-containing segment 5 and a mouthpiece segment 8.
  • the mouthpiece segment 8 includes a first cooling segment 6, a filter segment 1 according to the present embodiment, and a first center hole segment 7.
  • the tobacco-containing segment 5 is heated and inhalation takes place at the end of the first center hole segment 7.
  • the position of the filter segment 1 is not limited to the position illustrated in Fig. 2 , and the positions of the filter segment 1 and the first center hole segment 7 may be switched, for example.
  • the first center hole segment 7 may be omitted in the flavor inhaler 4 illustrated in Fig. 2 .
  • the tobacco-containing segment 5 includes a tobacco filler 9 containing tobacco and an aerosol former and a tubular first wrapper 10 that covers the tobacco filler 9.
  • the tobacco filler 9 may further contain a volatile flavor component, water, and so forth.
  • the size of tobacco used as a filler or a preparation method therefor is not particularly limited. For example, dry tobacco leaves shredded into a width of 0.8 to 1.2 mm may be used. When shredded into such a width, the resulting shreds have a length of about 5 to 20 mm. Moreover, those prepared by uniformly pulverizing dry tobacco leaves into an average particle size of about 20 to 200 ⁇ m, forming into sheets, and shredding the sheets into a width of 0.8 to 1.2 mm may also be used. When shredded into such a width, the resulting shreds have a length of about 5 to 20 mm. Further, the above-mentioned formed sheets may be gathered without shredding and used as a filler.
  • tobacco filler In either case of using dry tobacco leaves as shreds or as sheets formed after uniform pulverization, various types of tobacco may be employed for a tobacco filler. Flue-cured, burley, oriental, and domestic, regardless of Nicotiana tabacum varieties or Nicotiana rustica varieties, may be blended as appropriate for an intended taste and used. The details of the varieties of tobacco are disclosed in “Tobacco no Jiten (Encyclopedia of Tobacco), Tobacco Academic Studies Center, March 31, 2009. "
  • Such sheets include: first, a sheet made by a papermaking process; second, a cast sheet made by uniformly mixing pulverized tobacco with a suitable solvent, such as water, thinly casting the resulting uniform mixture on a metal plate or a metal plate belt, and drying; and third, a rolled sheet formed by extruding a uniform mixture of pulverized tobacco with a suitable solvent, such as water, into a sheet shape.
  • a suitable solvent such as water
  • the filling density of the tobacco filler 9 is not particularly limited but is typically 250 mg/cm 3 or more, preferably 320 mg/cm 3 or more and typically 520 mg/cm 3 or less, preferably 420 mg/cm 3 or less from a viewpoint of ensuring the performance of the flavor inhaler 4 and imparting satisfactory smoking flavor.
  • the content range of the tobacco filler 9 is 200 to 400 mg, for example, and preferably 250 to 320 mg per tobacco-containing segment 5.
  • An aerosol former is a material that can generate an aerosol upon heating. Examples include, but are not particularly limited to, glycerol, propylene glycol (PG), 1,3-butanediol, and triethyl citrate (TEC). These aerosol formers may be used alone or in combination.
  • the amount of aerosol former contained in the tobacco filler 9 may be, for example, 10 to 30 mass% relative to 100 mass% of the tobacco filler 9.
  • the volatile flavor component is not particularly limited and examples include, from a viewpoint of imparting satisfactory smoking flavor, acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, Peru balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, ⁇ -carotene, carrot juice, L-carvone, ⁇ -caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinn
  • a method of packing the tobacco filler 9 within the first wrapper 10 is not particularly limited.
  • the tobacco filler 9 may be wrapped in the first wrapper 10, or the tubular first wrapper 10 may be filled with the tobacco filler 9.
  • tobacco may be packed with the longitudinal direction randomly aligned within the first wrapper 10 or may be packed with the longitudinal direction aligned with the axial direction or the direction perpendicular to the axial direction of the tobacco-containing segment 5.
  • An aerosol former and tobacco components contained in the tobacco filler 9 are vaporized by heating the tobacco-containing segment 5 and moved to the mouthpiece segment 8 through inhalation.
  • the first cooling segment 6 comprises a first tubular member 11.
  • the first tubular member 11 may be a cylindrically processed paper tube of cardboard, for example.
  • the first tubular member 11 and a mouthpiece lining paper 16 described hereinafter are provided with a perforation 12 passing therethrough. Due to the presence of the perforation 12, external air is introduced inside the first cooling segment 6 during inhalation. Consequently, volatile components vaporized by heating the tobacco-containing segment 5 come into contact with external air and liquefy due to the lowering temperature, thereby forming an aerosol.
  • the size (diameter) of the perforation 12 is not particularly limited but may be 0.5 to 1.5 mm, for example.
  • the number of the perforation 12 is also not particularly limited and may be one or two or more. For example, a plurality of perforations 12 may be provided on the perimeter of the first cooling segment 6.
  • the first center hole segment 7 comprises a filling layer 13 having a hollow portion and an inner plug wrapper 14 that covers the filling layer 13.
  • the filling layer 13 may be, for example, a rod formed by hardening highly densely packed cellulose acetate fibers added with 6 to 20 mass%, based on the mass of cellulose acetate, of a plasticizer including triacetin.
  • the diameter of the hollow portion may be 1.0 to 5.0 mm. Since the filling layer 13 has a high filling density of fibers, air and an aerosol flow only through the hollow portion and hardly flow within the filling layer 13 during inhalation. Consequently, it is possible to reduce the filtration of an aerosol in the first center hole segment 7.
  • a hollow portion is provided in the filling layer 13 in Fig. 2 , such a hollow portion need not be provided in the present embodiment. In other words, a segment of a common acetate filter may be disposed in place of the first center hole segment.
  • the filter segment 1 and the first center hole segment 7 are joined with an outer plug wrapper 15.
  • the outer plug wrapper 15 may be a cylindrical paper, for example.
  • the tobacco-containing segment 5, the first cooling segment 6, and the connected filter segment 1 and the first center hole segment 7 are joined with the mouthpiece lining paper 16.
  • These three segments may be joined, for example, by applying a glue, such as a vinyl acetate-based glue, to the inner surface of the mouthpiece lining paper 16 and wrapping the lining paper around these segments.
  • the length of the flavor inhaler 4 according to the present embodiment in the axial direction is not particularly limited but is preferably 40 to 90 mm, more preferably 50 to 75 mm, and further preferably 50 to 60 mm.
  • the perimeter length of the flavor inhaler 4 according to the present embodiment is preferably 16 to 25 mm, more preferably 20 to 24 mm, and further preferably 21 to 23 mm.
  • the length of the tobacco-containing segment 5 is 20 mm
  • the length of the first cooling segment 6 is 20 mm
  • the length of the filter segment 1 is 8 mm
  • the length of the first center hole segment 7 is 7 mm.
  • the length of these individual segments may be changed appropriately depending on manufacturing feasibility, required quality, and so forth.
  • Fig. 3 illustrates an exemplary flavor inhaler according to a second embodiment of the present invention.
  • the flavor inhaler 4 illustrated in Fig. 3 includes a tobacco-containing segment 5, a second center hole segment 17, a second cooling segment 18, and a filter segment 1 according to the present embodiment.
  • the second center hole segment 17 in the present embodiment also acts to prevent the displacement of a tobacco filler packed in the tobacco-containing segment 5 toward the second cooling segment 18 on the downstream side.
  • the tobacco-containing segment 5 may be the same as the tobacco-containing segment in the first embodiment.
  • the second center hole segment 17 in the present embodiment may be, for example, a second tubular member 19 having a hollow portion of 1.5 to 5 mm in diameter.
  • the second cooling segment 18 in the present embodiment may be a segment in which a film 20 of a polymer, such as polylactic acid, after crimping followed by gathering is disposed within a second wrapper 21.
  • the tobacco-containing segment 5, the second center hole segment 17, the second cooling segment 18, and the filter segment 1 are joined with a mouthpiece lining paper 16.
  • the second cooling segment 18 may be changed to the filter segment 1 according to the present embodiment, and a segment of a common acetate filter may be provided downstream thereof.
  • the length of the flavor inhaler 4 according to the present embodiment in the axial direction is not particularly limited but is preferably 40 to 65 mm and more preferably 45 to 60 mm.
  • the perimeter length of the flavor inhaler 4 according to the present embodiment is preferably 16 to 25 mm and more preferably 18 to 23 mm.
  • the length of the tobacco-containing segment 5 is 12 mm
  • the length of the second center hole segment 17 is 8 mm
  • the length of the second cooling segment 18 is 18 mm
  • the length of the filter segment 1 is 7 mm.
  • the length of these individual segments may be changed appropriately depending on manufacturing feasibility, required quality, and so forth
  • a non-combustion heating-type flavor inhalation system (hereinafter, also referred to as flavor inhalation system) according to the present embodiment may include the flavor inhaler according to the present embodiment and a heating device for heating the tobacco-containing segment. Since the flavor inhalation system includes the flavor inhaler according to the present embodiment, it is possible to increase the proportion of an aerosol relative to flavor components.
  • the flavor inhalation system according to the present embodiment is not particularly limited provided that the flavor inhaler according to the present embodiment and the heating device are included and may include other constituents.
  • Fig. 4 illustrates an exemplary flavor inhalation system according to the present embodiment.
  • the flavor inhalation system illustrated in Fig. 4 includes a flavor inhaler 4 according to the present embodiment and a heating device 22 for heating a tobacco-containing segment of the flavor inhaler 4 from the outside.
  • Fig. 4 (a) illustrates the state before inserting the flavor inhaler 4 into the heating device 22, and
  • Fig. 4 (b) illustrates the state of heating the flavor inhaler 4 inserted into the heating device 22.
  • the heating device 22 illustrated in Fig. 4 includes a body 23, a heater 24, a metal tube 25, a battery unit 26, and a control unit 27.
  • the body 23 has a tubular recess 28, and the heater 24 and the metal tube 25 are arranged on the inner side surface of the recess 28 at a position corresponding to the tobacco-containing segment of the flavor inhaler 4 inserted into the recess 28.
  • the heater 24 may be an electric resistance heater, and heating by the heater 24 is performed by supplying power from the battery unit 26 in accordance with instructions from the control unit 27, which controls temperature. Heat generated by the heater 24 is transferred to the tobacco-containing segment of the flavor inhaler 4 through the metal tube 25 having a high thermal conductivity.
  • a gap exists between the outer perimeter of the flavor inhaler 4 and the inner perimeter of the metal tube 25.
  • the heating device 22 heats the tobacco-containing segment of the flavor inhaler 4 from the outside, the heating device may be a heating device for heating from the inside.
  • the heating temperature by the heating device is not particularly limited but is preferably 400°C or lower, more preferably 150°C or higher and 400°C or lower, and further preferably 200°C or higher and 350°C or lower.
  • the heating temperature means the temperature of the heater in the heating device.
  • Glassine (trade name: extra thick white glassine, 8 mm ⁇ 180 mm, basis weight: 40 g/m 2 , thickness: 40 ⁇ m) was provided with straight line folds at intervals of 1 mm in the transverse direction. The resulting glassine was spray-coated with lactic acid. The content of lactic acid in the glassine was 8 mg (12.2 mass%).
  • a cylindrical filter segment of 21.4 mm in perimeter length and 8 mm in length in the axial direction was prepared by gathering the glassine while corrugating along the folds and then packing within a paper wrapper. The filing density of the glassine within the filter segment was 0.62 mg/mm 3 .
  • the resistance to draw of the filter segment was 0.37 mmH 2 O/mm. Here, the resistance to draw was measured by a draw resistance measuring instrument (trade name: SODIMAX from Sodim SAS).
  • a commercial flavor inhaler (tobacco stick for Ploom S (trade name) from Japan Tobacco Inc.) was prepared.
  • the flavor inhaler has the same configuration as the flavor inhaler 4 illustrated in Fig. 2 except for a center hole segment disposed in place of the filter segment 1.
  • the flavor inhaler includes two center hole segments disposed on the mouth end side, where the center hole segment on the tobacco-containing segment side has a hollow portion of 4.5 mm in diameter and the center hole segment on the mouth end side has a hollow portion of 1.5 mm in diameter.
  • a flavor inhaler having the configuration illustrated in Fig. 2 was prepared by replacing, in the commercial flavor inhaler, the center hole segment on the tobacco-containing segment side by the filter segment prepared by the above-described method.
  • the length of the tobacco-containing segment 5 was 20 mm
  • the length of the first cooling segment 6 was 20 mm
  • the length of the filter segment 1 was 8 mm
  • the length of the first center hole segment 7 was 7 mm.
  • the tobacco-containing segment 5 contained tobacco and glycerol as an aerosol former.
  • a glass fiber filter (trade name: Cambridge filter 44 mm from Borgwaldt KC GmbH) was placed at a position immediately following the mouth end of the prepared flavor inhaler.
  • the tobacco-containing segment of the flavor inhaler was heated at 240°C by using a heating device (trade name: Ploom S from Japan Tobacco Inc.) designed for the above-mentioned commercial flavor inhaler, and inhalation was performed under conditions of 8 puffs in total at 55 mL/puff for 2 seconds (30 second interval for each puff, i.e. 2 seconds for inhaling and 28 seconds for waiting) with reference to the HCI (Health Canada Intense) regime.
  • the amounts of glycerol and nicotine trapped by the glass fiber filter were quantified for each puff.
  • the trapped components were subjected to shaking extraction using 10 mL of isopropanol (IPA) as an extraction solvent under conditions of 200 rmp for 20 minutes.
  • IPA isopropanol
  • the obtained extract was analyzed by GC under the following conditions to quantify the amounts of glycerol and nicotine for each puff.
  • Oven temperature retention at 150°C for 1.3 min, subsequent temperature rising at 70°C/min to 240°C, retention for 5 min
  • Table 1 shows the amount of glycerol, the amount of nicotine, and the proportion of the amount of glycerol relative to the amount of nicotine (G/Ni) in 8 puffs in total.
  • segment A indicates the segment positioned second from the mouth end
  • segment B indicates the segment positioned closest to the mouth end.
  • a filter segment was prepared in the same manner as Example 1 except that glassine was not coated with lactic acid.
  • a flavor inhaler was produced using the prepared filter segment and evaluated in the same manner as Example 1. The results are shown in Table 1.
  • Example 1 The commercial flavor inhaler as it is without replacing the center hole segment by the filter segment as in Example 1 was evaluated in the same manner as Example 1. The results are shown in Table 1.
  • Example 1 The two center hole segments of the commercial flavor inhaler in Example 1 were replaced by a filter segment filled with cellulose acetate fibers, and the resulting flavor inhaler was evaluated in the same manner as Example 1. The results are shown in Table 1.
  • Table 1 Segment A Segment B Glycerol (G) (mg/stick) Nicotine (Ni) (mg/stick) G/Ni Structure Filler Resistance to draw (mmH 2 O/mm) Structure Filler Ex. 1 filter segment lactic acid-containing glassine 0.37 center hole segment - 2.12 0.34 6.32 Comp. Ex. 1 filter segment glassine 0.36 center hole segment - 2.25 0.46 4.95 Comp. Ex. 2 center hole segment - 0 center hole segment - 2.45 0.51 4.83 Ref. Ex. 1 filter segment cellulose acetate fiber 3.6 filter segment cellulose acetate fiber 1.75 0.24 7.33
  • Example 1 exhibited a high G/Ni value since the flavor inhaler includes a filter segment containing an acid.
  • Comparative Examples 1 and 2 had G/Ni values lower than Example 1 since the flavor inhalers do not include such a filter segment.
  • the flavor inhaler of Reference Example 1 exhibited a high G/Ni value but the amounts of glycerol and nicotine smaller than Example 1 due to the high resistance to draw.
  • Example 1 was better balanced in terms of the amount of glycerol, the amount of nicotine, and the G/Ni value.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP20914699.2A 2020-01-15 2020-01-15 Segment de filtre pour inhalateur d'arôme de type à chauffage sans combustion, inhalateur d'arôme de type à chauffage sans combustion, et système d'inhalation d'arôme de type à chauffage sans combustion Pending EP4091462A4 (fr)

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Publication number Priority date Publication date Assignee Title
WO2023163110A1 (fr) * 2022-02-25 2023-08-31 日本たばこ産業株式会社 Filtre pour article d'inhalation d'arôme à chauffage sans combustion
WO2024142465A1 (fr) * 2022-12-26 2024-07-04 日本たばこ産業株式会社 Article d'inhalation d'arôme
WO2024142166A1 (fr) * 2022-12-26 2024-07-04 日本たばこ産業株式会社 Article d'inhalation d'arôme

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CN110680019A (zh) * 2019-11-26 2020-01-14 上海龙殷生物科技有限公司 一种加热不燃烧卷烟的烟弹

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JP2023116642A (ja) 2023-08-22
EP4091462A4 (fr) 2023-10-04
JP7333833B2 (ja) 2023-08-25
JPWO2021144872A1 (fr) 2021-07-22
TW202128034A (zh) 2021-08-01
WO2021144872A1 (fr) 2021-07-22

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