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WO2025141095A1 - Filtre comprenant un substrat fibreux composé d'une bande support à trous traversants - Google Patents

Filtre comprenant un substrat fibreux composé d'une bande support à trous traversants Download PDF

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Publication number
WO2025141095A1
WO2025141095A1 PCT/EP2024/088476 EP2024088476W WO2025141095A1 WO 2025141095 A1 WO2025141095 A1 WO 2025141095A1 EP 2024088476 W EP2024088476 W EP 2024088476W WO 2025141095 A1 WO2025141095 A1 WO 2025141095A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
fibrous substrate
holes
perforated
base web
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
PCT/EP2024/088476
Other languages
English (en)
Inventor
Thomas BLIN
Patrick Guilchet
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.)
Swm Holdco Luxembourg
Original Assignee
Swm Holdco Luxembourg
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 Swm Holdco Luxembourg filed Critical Swm Holdco Luxembourg
Publication of WO2025141095A1 publication Critical patent/WO2025141095A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A24D3/08—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
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • 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
    • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
    • A24D3/068—Biodegradable or disintegrable

Definitions

  • the invention relates to the filter comprising a fibrous substrate as filter media, in particular the filter for a smoking or vaping article.
  • a filter for a smoking or vaping article has a right circular cylindrical shape and generally comprises an outer envelope of plug wrap paper and a filter media located within the outer envelope.
  • the filter for a smoking or vaping article by virtue of the substrate, makes it possible to prevent the user from inhaling tobacco particles and allows retention of the harmful particulate substances contained in the smoke or the aerosol.
  • a filter comprising a fibrous substrate as a filter media, said fibrous substrate comprising a base web comprising perforated through-holes, characterized in that the density of the perforated through-holes is from 20 perforated through- holes/cm 2 to 300 perforated through-holes/cm 2 , in particular 30 perforated through-holes/cm 2 to 200 perforated through-holes/cm 2 , more particularly from 50 perforated through-holes/cm 2 to 150 perforated through-holes/cm 2 , even more particularly from 90 perforated through-holes/cm 2 to 110 perforated through-holes/cm 2 .
  • the nicotine retention capacity of the filter comprising a base web having a density of perforated through-holes in theses ranges is advantageously improved as it tends towards the nicotine retention capacity of cellulose acetate filters.
  • the filter of the invention provides a satisfactory user experience.
  • a base web having a density of perforated through-holes higher than 300 perforated through-holes/cm 2 does not have the mechanical properties enabling the manufacture of a filter.
  • the filter of the invention may, by virtue of its composition, degrade very rapidly in the environment. This is particularly advantageous, since the environmental impact of the filter of the invention is smaller than the environmental impact of a cellulose acetate filter.
  • a process for producing a filter as defined above for a smoking article or a vaping article comprising the following steps: a) producing a base web by a wetlaid process, an airlaid process, a drylaid process or combinations thereof, in particular by a wetlaid process b) obtaining perforated through-holes in the base web to produce a fibrous substrate, c) forming a filter rod from the fibrous substrate produced in step b), d) wrapping the filter rod with a sheet of plug wrap paper, e) depositing an adhesive line at the junction of the sheet of plug wrap paper to obtain a rod of filtering material, and f) cutting the rod of filtering material to produce the filter.
  • a filter comprising a fibrous substrate as a filter media, said fibrous substrate comprising a base web comprising perforated through-holes, characterized in that the density of the perforated through-holes is from 20 perforated through- holes/cm 2 to 300 perforated through-holes/cm 2 , in particular 30 perforated through-holes/cm 2 to 200 perforated through-holes/cm 2 , more particularly from 50 perforated through-holes/cm 2 to 150 perforated through-holes/cm 2 even more particularly from 90 perforated through-holes/cm 2 to 110 perforated through-holes/cm 2 .
  • base web is used herein to mean a fibrous sheet. According to the present invention, the base web is not obtained by hydroentanglement.
  • the base web Prior to the formation of the perforated through-holes, the base web can be impregnated, calendared, coated, sprayed, embossed or combinations thereof.
  • the present invention also relates to a smoking article comprising a filter as defined above.
  • the present invention also relates to a vaping article comprising a filter as defined above.
  • the present invention also relates to a process for producing a filter as defined above for a smoking article or a vaping article, comprising the following steps: a) producing a base web by a wetlaid process, an airlaid process, a drylaid process or combinations thereof, in particular by a wetlaid process b) obtaining the perforated through-holes in the base web to produce a fibrous substrate, c) forming a filter rod from the fibrous substrate produced in step b), d) wrapping the filter rod with a sheet of plug wrap paper, e) depositing an adhesive line at the junction of the sheet of plug wrap paper to obtain a rod of filtering material, and f) cutting the rod of filtering material to produce the filter.
  • the fibrous substrate and the base web are as defined above.
  • the wetlaid, airlaid and drylaid processes are conventional processes known to the skilled person. The skilled person knows how to adapt the parameters of these processes to produce the base web during step a).
  • Step b) of obtaining perforated through-holes in the base web may be performed by laser drilling, mechanical punching, perforation wheels, electrostatic perforation, air pressure or ultrasonic perforation.
  • the fibrous substrate produced in step b) can be shaped.
  • the process may comprise, between step b) and step c), a step of shaping the fibrous substrate by slitting, crimping, embossing, folding, compression or combination thereof.
  • Slitting the fibrous substrate may be useful to modify the pressure drop of the filter.
  • Steps c) to e) are steps well known to the skilled person. The skilled person knows how to adapt the parameters of these processes to produce the filter of the invention. Examples
  • Example 1 Fibrous substrate manufacturing
  • a base web was produced with bleached softwood fibers by a wetlaid process.
  • This base web is cut into four pieces and through-holes were perforated in three of these four base webs by mechanical punching process to produce three fibrous substrates.
  • Example 2 Filter manufacturing
  • Filters for a smoking article were manufactured with a nonporous plug wrap paper having a basis weight of 23.5 g/m 2 as an outer envelope and the fibrous substrate of Example 1.1 having a perforated through-hole density of 100 perforated through-holes/cm 2 by a standard method for manufacturing filters by crimping (referred as filter 100 through-holes/cm 2 in Table 2 and 3 below).
  • a filter for a smoking article was manufactured with a nonporous plug wrap paper having a basis weight of 23.5 g/m 2 as an outer envelope and the fibrous substrate of Comparative Example 1 having a perforated through-hole density of 11 perforated through-holes/cm 2 by a standard method for manufacturing filters by crimping (referred as filter 11 through-holes/cm 2 in Table 2 and 3 below).
  • Table 2 demonstrates that the filter according to the invention has a lower filter density than the comparative paper filter.
  • Example 3 Manufacture and characterization of cigarettes
  • Cigarettes were prepared using the filters rods described in Example 2. The filters were cut to 21 mm length. To form the cigarettes, the rods of tobacco were assembled with the cut filters using nonporous 35 g/m 2 tipping paper. A commercial “American blend” tobacco was used to form the rods of tobacco. The cigarettes were prepared with a pressure drop similar to that of the commercial cigarette. The ventilation of the cigarettes was blocked.
  • the nicotine content in the smoke was measured in accordance with the standard ISO 10315:2000.
  • Table 3 presents the difference between the content of nicotine in the smoke produced by the cigarettes with the commercial cellulose acetate filter and the content of nicotine in the smoke produced by the cigarettes with the filter 100 perforated through-holes/cm 2 , and the cigarette with the filter 11 perforated through-holes/cm 2 or the comparative paper filter. These differences are noted Delta nicotine in Table 3 below.
  • Table 3 demonstrates that, with an equivalent pressure drop, the difference between the content of nicotine in the smoke produced by the cigarettes with the filter 100 perforated through- holes/cm 2 according to the invention and the content of nicotine in the smoke produced by the cigarettes with the commercial cellulose acetate filter is lower than the difference between the content of nicotine in the smoke produced by the cigarettes with the filters not according to the invention and the content of nicotine in the smoke produced by the cigarettes with the commercial cellulose acetate filter.
  • the filter of the present invention provides to the user a more satisfactory experience than the comparative paper filter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

La présente invention concerne un filtre comprenant un substrat fibreux utilisé comme milieu filtrant et composé d'une bande support à trous traversants, ledit filtre ayant une capacité de rétention de nicotine satisfaisante.
PCT/EP2024/088476 2023-12-26 2024-12-24 Filtre comprenant un substrat fibreux composé d'une bande support à trous traversants Pending WO2025141095A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FRFR2315322 2023-12-26
FR2315322 2023-12-26

Publications (1)

Publication Number Publication Date
WO2025141095A1 true WO2025141095A1 (fr) 2025-07-03

Family

ID=91620661

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/088476 Pending WO2025141095A1 (fr) 2023-12-26 2024-12-24 Filtre comprenant un substrat fibreux composé d'une bande support à trous traversants

Country Status (1)

Country Link
WO (1) WO2025141095A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120305015A1 (en) * 2011-05-31 2012-12-06 Sebastian Andries D Coated paper filter
ES2569038T3 (es) * 2012-09-28 2016-05-06 Reemtsma Cigarettenfabriken Gmbh Artículo de fumar
ES2690859A2 (es) * 2013-12-13 2018-11-22 Delfortgroup Ag Material de envoltura para un artículo para fumar con capacidad de difusión direccional
WO2022215171A1 (fr) * 2021-04-06 2022-10-13 日本たばこ産業株式会社 Matériau poreux pour tabac sans combustion, et capsule de tabac pour tabac sans combustion de type sans chauffage ou de type chauffage basse température

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120305015A1 (en) * 2011-05-31 2012-12-06 Sebastian Andries D Coated paper filter
ES2569038T3 (es) * 2012-09-28 2016-05-06 Reemtsma Cigarettenfabriken Gmbh Artículo de fumar
ES2690859A2 (es) * 2013-12-13 2018-11-22 Delfortgroup Ag Material de envoltura para un artículo para fumar con capacidad de difusión direccional
WO2022215171A1 (fr) * 2021-04-06 2022-10-13 日本たばこ産業株式会社 Matériau poreux pour tabac sans combustion, et capsule de tabac pour tabac sans combustion de type sans chauffage ou de type chauffage basse température

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