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EP-4736678-A1 - NON-COMBUSTION TYPE FLAVOR INHALATION ARTICLE

EP4736678A1EP 4736678 A1EP4736678 A1EP 4736678A1EP-4736678-A1

Abstract

Provided is a non-combustion type flavor inhalation article having a tobacco member, a cooling member, and a mouthpiece, wherein the mouthpiece includes an adsorption segment containing an adsorbent, the adsorption segment has an airflow resistance of 5 mmH 2 O or less, and the amount of the adsorbent is 4-10 (mg/longitudinal length mm).

Inventors

  • MOTODAMARI, TETSUYA

Assignees

  • Japan Tobacco Inc.

Dates

Publication Date
20260506
Application Date
20230630

Claims (8)

  1. A non-combustion flavor inhalation article comprising a tobacco member, a cooling member, and a mouthpiece, wherein the mouthpiece comprises an adsorption segment containing an adsorbent, the adsorption segment has an airflow resistance of 5 mmH 2 O or less, and an amount of the adsorbent is 4-10 (mg/adsorption segment longitudinal length mm).
  2. The non-combustion flavor inhalation article as claimed in claim 1, wherein the adsorption segment comprises an adsorbent-containing sheet.
  3. The non-combustion flavor inhalation article as claimed in claim 1 or 2, wherein the adsorbent is activated charcoal.
  4. The non-combustion flavor inhalation article as claimed in claim 2 or 3, wherein the sheet comprises pulp.
  5. The non-combustion flavor inhalation article as claimed in any of claims 1 to 4, wherein, taking a short-side direction of the non-combustion flavor inhalation article as the width, the adsorption segment is packed with a sheet having a width of 150 mm or less.
  6. The non-combustion flavor inhalation article as claimed in any of claims 1 to 5, wherein the adsorption segment comprises a wrapper having a basis weight of 50 gsm (g/m 2 ) or greater.
  7. The non-combustion flavor inhalation article as claimed in any of claims 1 to 6, wherein the mouthpiece further comprises a mouthpiece-side segment disposed downstream of the adsorption segment.
  8. The non-combustion flavor inhalation article as claimed in any of claims 1 to 7, wherein the adsorption segment has a cross-sectional void ratio of greater than 30%.

Description

TECHNICAL FIELD The present invention relates to a non-combustion flavor inhalation article. BACKGROUND ART The use of activated charcoal is known in flavor inhalation articles. PTL 1, for example, discloses an aerosol-generating article comprising between 0.005 mg and 0.1 mg of activated carbon disposed between an aerosol-forming substrate and a mouthpiece filter, wherein the activated carbon is coupled to an elongated carbon support element in the form of a thread. Furthermore, PTL 2 discloses a cigarette employing a charcoal filter. Recent years have seen greater development of non-combustion flavor inhalation articles. Non-combustion flavor inhalation articles generate fewer flavor components than conventional combusted smoking articles (cigarettes), so the filter needs to have low filtration in order to deliver flavor to the user. Reducing the airflow resistance of the filter is a generally known way of achieving low filtration. CITATION LIST PATENT LITERATURE PTL 1: JP 2018-530318 APTL 2: WO 2011/118042 A1 SUMMARY OF INVENTION TECHNICAL PROBLEM The smoke delivered from a non-combustion flavor inhalation article contains a particle phase (aerosol) and a vapor phase (gas). The particle phase contains flavor components and active components, and is therefore preferably delivered selectively. Reducing the airflow resistance of the filter is generally effective for enhancing delivery efficiency. However, simply reducing the airflow resistance is not sufficient to remove the undesirable vapor phase. In light of the situation above, the problem addressed by the present invention lies in providing a non-combustion flavor inhalation article capable of selectively delivering a particle phase (aerosol) to a user. SOLUTION TO PROBLEM The present inventors found that the vapor phase could be efficiently removed by increasing the adsorption capacity of the filter while reducing the airflow resistance to enhance the efficiency of delivering the particle phase. That is to say, the problem above is solved by the following invention. Aspect 1 A non-combustion flavor inhalation article comprising a tobacco member, a cooling member, and a mouthpiece, wherein the mouthpiece comprises an adsorption segment containing an adsorbent,the adsorption segment has an airflow resistance of 5 mmH2O or less, andan amount of the adsorbent is 4-10 (mg/adsorption segment longitudinal length mm). Aspect 2 The non-combustion flavor inhalation article as disclosed in aspect 1, wherein the adsorption segment comprises an adsorbent-containing sheet. Aspect 3 The non-combustion flavor inhalation article as disclosed in aspect 1 or 2, wherein the adsorbent is activated charcoal. Aspect 4 The non-combustion flavor inhalation article as disclosed in aspect 2 or 3, wherein the sheet comprises pulp. Aspect 5 The non-combustion flavor inhalation article as disclosed in any of aspects 1 to 4, wherein, taking a short-side direction of the non-combustion flavor inhalation article as the width, the adsorption segment is packed with a sheet having a width of 150 mm or less. Aspect 6 The non-combustion flavor inhalation article as disclosed in any of aspects 1 to 5, wherein the adsorption segment comprises a wrapper having a basis weight of 50 gsm (g/m2) or greater. Aspect 7 The non-combustion flavor inhalation article as disclosed in any of aspects 1 to 6, wherein the mouthpiece further comprises a mouthpiece-side segment disposed downstream of the adsorption segment. Aspect 8 The non-combustion flavor inhalation article as disclosed in any of aspects 1 to 7, wherein the adsorption segment has a cross-sectional void ratio of greater than 30%. ADVANTAGEOUS EFFECTS OF INVENTION The present invention makes it possible to provide a non-combustion flavor inhalation article capable of selectively delivering a particle phase (aerosol) to a user. BRIEF DESCRIPTION OF DRAWINGS Fig. 1 shows one mode of a heat-not-burn flavor inhalation article.Fig. 2 shows the outline of an adsorption segment.Fig. 3 shows a mode in which a mouthpiece is formed by three segments.Fig. 4 shows one mode of a heat-not-burn flavor inhalation system.Fig. 5 is a diagram comparing nicotine and glycerol delivery, with Comparative Example 2 as a reference.Fig. 6 is a diagram comparing acetaldehyde, acetone and acrolein delivery, with Comparative Example 1 as a reference. DESCRIPTION OF EMBODIMENTS As used in the present disclosure, the range "X-Y" includes X and Y as the end values. Unless specifically stated otherwise, "weight" is dry weight. Furthermore, "downstream" means a direction toward a mouthpiece end of the non-combustion flavor inhalation article. 1. Non-combustion flavor inhalation article Non-combustion flavor inhalation articles are broadly divided into heat-not-burn flavor inhalation articles and no-heat, no-burn flavor inhalation articles. Heat-not-burn flavor inhalation articles include inhalation articles which directly heat a flavor source to generate a flavor, and inhala