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EP-4737121-A2 - NON-COMBUSTIBLE HEATING-TYPE SMOKING ARTICLE, ELECTRIC HEATING-TYPE SMOKING SYSTEM, AND METHOD FOR PRODUCING NON-COMBUSTIBLE HEATING-TYPE SMOKING ARTICLE

EP4737121A2EP 4737121 A2EP4737121 A2EP 4737121A2EP-4737121-A2

Abstract

The present invention relates to a heating-type smoking article (14) arranged for creating a smoke aroma of tobacco through heating without combustion comprising: a tobacco filler (23); and a wrapper (41) enclosing the tobacco filler (23), the wrapper (41) including: a substrate sheet (42) made of metal; a first sheet (43) made of paper and bonded to one surface of the substrate sheet (42) on a side of the tobacco filler (23); and a second sheet made (44) of paper and bonded to one other surface of the substrate sheet (42) on a side opposite to the one surface, characterized in that the wrapper (41) has a thickness of 50 to 100 µm.

Inventors

  • IWANAGA, KENICHI
  • SAKURAI, TORU
  • OSAWA, Noriko

Assignees

  • Japan Tobacco Inc.

Dates

Publication Date
20260506
Application Date
20181207

Claims (13)

  1. A heating-type smoking article (14) arranged for creating a smoke aroma of tobacco through heating without combustion comprising: a tobacco filler (23); and a wrapper (41) enclosing the tobacco filler (23), the wrapper (41) including: a substrate sheet (42) made of metal; a first sheet (43) made of paper and bonded to one surface of the substrate sheet (42) on a side of the tobacco filler (23); and a second sheet made (44) of paper and bonded to one other surface of the substrate sheet (42) on a side opposite to the one surface, characterized in that the wrapper (41) has a thickness of 50 to 100 µm.
  2. The heating-type smoking article (14) according to claim 1, wherein the first sheet (43) includes a first flavor component.
  3. The heating-type smoking article (14) according to claim 2, wherein: the tobacco filler (23) includes a second flavor component that is the same as or different from the first flavor component, and a proportion of a total mass of the first flavor component to a total mass of the second flavor component is 5 to 15 %.
  4. The heating-type smoking article (14) according to claim 1, wherein: the wrapper (41) includes: a first bonding part (45) bonding the substrate sheet (42) and the first sheet (43) together; and a second bonding part (46) bonding the substrate sheet (42) and the second sheet (44) together, and the first bonding part (45) and the second bonding part (46) are made of a vinyl acetate-based emulsion adhesive or a starch glue.
  5. The heating-type smoking article (14) according to claim 1, wherein the first sheet (43) and the second sheet (44) have a basis weight of 20 to 45 g/m 2 .
  6. The heating-type smoking article (14) according to claim 1, wherein the substrate sheet (42) has a thickness of 6 to 18 µm.
  7. The heating-type smoking article (14) according to claim 1, wherein the tobacco filler (23) is formed by being filled with a cut rag of leaf tobacco and/or a cut piece of a sheet into which pulverized leaf tobacco is molded, in a random orientation, and the cut piece having a predetermined width.
  8. The heating-type smoking article (14) according to claim 1, comprising: a filter part (26) configured to filter an aerosol generated from the tobacco filler (23); and a tubular connecting part (27) connecting the filter part (26) and the wrapper (41), wherein the connecting part (27) includes an air vent part (28).
  9. The heating-type smoking article (14) according to claim 8, wherein: the filter part (26) comprises: a first segment (31) including a hollow part; and a second segment (32) that is solid and adjacent to the first segment (31).
  10. The heating-type smoking article (14) according to claim 2, wherein the first flavor component includes menthol.
  11. An electric heating-type smoking system comprising: the heating-type smoking article (14) according to claim 1; and a heater (21) configured to heat the heating-type smoking article (14).
  12. A manufacturing method for a heating-type smoking article (14), the method comprising: forming a wrapper (41), the forming the wrapper including: bonding a first sheet (43) made of paper to one surface of a substrate sheet (42) made of metal, and bonding a second sheet (44) made of paper to one other surface of the substrate sheet (42) on a side opposite to the one side; making the first sheet (43) contain a first flavor component; and rolling the wrapper (41) around a tobacco filler (23) with the first sheet (43) inside, wherein forming the wrapper including the first sheet (43), the substrate sheet (42) and the second sheet (44) includes forming the wrapper (41) to a thickness of 50 to 100 µm or making a first sheet (43) made of paper contain a first flavor component; forming a wrapper (41), the forming the wrapper including: bonding the first sheet (43) to one surface of a substrate sheet (42) made of metal, and bonding a second sheet (44) made of paper to one other surface of the substrate sheet (42) on a side opposite to the one surface to form a wrapper (41); and rolling the wrapper (41) around a tobacco filler (23) with the first sheet (43) inside, wherein forming the wrapper including the first sheet (43), the substrate sheet (42) and the second sheet (44) includes forming the wrapper (41) to a thickness of 50 to 100 µm.
  13. The manufacturing method for the heating-type smoking article (14) with the tobacco filler according to claim 11, the method comprising making the tobacco filler (23) contain a second flavor component that is the same as or different from the first flavor component, wherein a proportion of a total mass of the first flavor component to a total mass of the second flavor component is 5 to 15 %.

Description

FIELD The present invention relates generally to a non-combustible heating-type smoking article free from combustion, an electric heating-type smoking system, and a method for producing the non-combustible heating-type smoking article. BACKGROUND Aerosol generating articles have been disclosed (Patent Literatures 1 to 3). In these aerosol generating articles, an aerosol-forming substrate (cigarette rod) is heated without combustion, thereby an aerosol is generated as mainstream smoke. This aerosol forming-substrate is made difficult to ignite when an attempt is made to ignite in a manner as in traditional cigarettes. Specifically, the aerosol-forming substrate is enclosed by a sheet made of a nonflammable heat conductive material, such as a metal foil. This makes it difficult for a user to ignite the aerosol-forming substrate. CITATION LIST PATENT LITERATURE [Patent Literature 1] Jpn. PCT National Publication No. 2016-538863[Patent Literature 2] Jpn. PCT National Publication No. 2016-538848[Patent Literature 3] International Publication No. 2010/047389 SUMMARY TECHNICAL PROBLEM When the aerosol-forming substrate is made to be enclosed by a metal foil, it glues poorly as compared to a cigarette wrapper made of paper. In addition, regarding part of the aerosol-forming substrate, the user is more likely to have a feeling of discomfort because it has a different appearance from that of a traditional cigarette. An objective of the present invention is to provide a non-combustible heating-type smoking article that can be produced at a high speed using an existing cigarette making machine with no modifications thereto. SOLUTION TO PROBLEM According to one aspect of the present invention, a non-combustible heating-type smoking article includes: a tobacco filler; and a wrapper enclosing the tobacco filler. The wrapper includes: a substrate sheet made of metal; a first sheet made of paper and bonded to one surface of the substrate sheet on a side of the tobacco filler; and a second sheet made of paper and bonded to one other surface of the substrate sheet on a side opposite to the one surface. ADVANTAGEOUS EFFECTS OF INVENTION With non-combustible heating-type smoking article of the present invention, it possible to provide a smoking article that can be produced at a high speed by using a current cigarette making machine with no modification thereto. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional schematic diagram showing an electric heating-type smoking system according to an embodiment.FIG. 2 is a schematic diagram showing an enlarged rod of the electric heating-type smoking system shown in FIG. 1.FIG. 3 is a cross-sectional view of a wrapper of a tobacco part for the rod shown in FIG. 1.FIG. 4 is a cross-sectional schematic diagram illustrating a process of inserting a rod into a main body of an electric heating-type smoking system according to an embodiment.FIG. 5 is a front view of a production line in a first production method for the wrapper shown in FIG. 3.FIG. 6 is a front view of a production line in a second production method for the wrapper shown in FIG. 3. DETAILED DESCRIPTION Hereinafter, an embodiment of an electric heating-type smoking system will be described with reference to FIG. 1 to FIG. 6. The drawings schematically show each component of the invention. Thus, the dimensions of the drawings may not always match the dimensions of actual products. As shown in FIG. 1, unlike in traditional cigarettes (cigarettes), an electric heating-type smoking system 11 is of a heating type that heats a tobacco filler through heating without combustion, and thereby the smoke aroma of tobacco can be tasted. The electric heating-type smoking system 11 includes a main body 12 and a rod 14 (a non-combustible heating-type smoking article) that is configured to be attached to and detached from an insertion part 13 of the main body 12. The main body 12 includes a box-shaped housing 15 and the insertion part 13 recessed into a cylindrical shape along the shape of the rod 14. The main body 12 include a battery 16, a control circuit 17, a pressure sensing part 20, a heat transfer part 18 (a heat exchanger tube), and a heater 21 provided around the heat transfer part 18, inside the housing 15. The housing 15 has a ventilation hole 22 and a switch 29 for activating the main body 12. The ventilation hole 22 communicates the outside of the housing 15 with the insertion part 13 and allows air to be supplied to the rod 14 inserted into the insertion part 13. The control circuit 17 upon being supplied with power from the battery 16 energizes the heater 21 to adjust the temperature of the heater 21 within an appropriate range (100 to 400 °C.) . The pressure sensing part 20 includes a pressure sensor and is supplied with power from the control circuit 17. The pressure sensing part 20 senses a negative pressure inside the housing 15, thereby detecting that the user has inhaled. The insertion part 13 is formed by reces