US20250009014A1 - Active paper - Google Patents

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Publication number
US20250009014A1
US20250009014A1 US18/708,127 US202218708127A US2025009014A1 US 20250009014 A1 US20250009014 A1 US 20250009014A1 US 202218708127 A US202218708127 A US 202218708127A US 2025009014 A1 US2025009014 A1 US 2025009014A1
Authority
US
United States
Prior art keywords
segment
filter
paper
filtering material
embossed
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
US18/708,127
Other languages
English (en)
Inventor
Rosi Ana QOLBI
Ian ANINDYA
N/A Giyanto
Sulistyo WIDODO
Sudirman Widiarto
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.)
Filtrona Development Co Pte Ltd
Original Assignee
Essentra Filter Products Development Co Pte Ltd
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 Essentra Filter Products Development Co Pte Ltd filed Critical Essentra Filter Products Development Co Pte Ltd
Publication of US20250009014A1 publication Critical patent/US20250009014A1/en
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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/166—Silicic acid or silicates

Definitions

  • the present invention provides a multi-segment filter for use with a smoking article such as a cigarette, tobacco heating product or a heat-not-burn product.
  • Filters or filter elements for smoking articles such as cigarettes, tobacco heating products or heat-not-burn products may be manufactured from a number of different materials.
  • 98% of commercial cigarette filters comprise an amount of cellulose acetate (source: Euromonitor International).
  • cellulose acetate is not biodegradable and as a result smoking articles comprising cellulose acetate may persist in the environment for many years. Due to this, and in consideration of new EU legislation coming into force by 2021 (aimed at reducing the use of single-use plastics such as cellulose acetate in filters), there is increasing interest in filters or filter elements that do not comprise single-use plastics and are biodegradable.
  • a filter for a smoking article e.g. a cigarette, a tobacco heating product, a heat-not-burn product
  • a smoking article e.g. a cigarette, a tobacco heating product, a heat-not-burn product
  • a filter for a smoking article which has improved biodegradability compared to conventional materials such as cellulose acetate and provides acceptable filtration properties, particularly in relation to gas phase constituents in the smoke or vapour.
  • a multi-segment filter comprising a first and second filter segment; wherein the first filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising embossed paper filtering material and/or embossed other biodegradable filtering material with a particulate additive embedded therein; and wherein the second filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising paper filtering material or other biodegradable filtering material.
  • the embossed paper filtering material and/or embossed other biodegradable filtering material of the first and/or second filter segment of the present invention is biodegradable and has an enhanced biodegradability compared to cellulose acetate. Therefore, the present invention provides a multi-segment filter of enhanced biodegradability, and thus is more environmentally friendly and is more in line with EU legislation.
  • biodegradable refers to the filtering material, filter segment or multi-segment filter being able to exhibit a biodegradation of at least 90% after 6 months under controlled composting conditions (see ISO14855-1 Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions—Method by analysis of evolved carbon dioxide).
  • the biodegradable filtering material, filter segment or multi-segment filter is “readily biodegradable”.
  • readily biodegradable refers to the filtering material, filter segment or multi-segment filter being able to disintegrate rapidly and completely biodegrade when immersed in water.
  • the filtering material, filter segment or multi-segment filter has the ‘Ready Biodegradability’ level of biodegradability as measured according to OECD 301B ‘Ready Biodegradability’ method (modified Sturm test), which is well known in the art.
  • the phase “readily biodegradable” will here be understood to mean ‘Ready Biodegradability’ level of biodegradability.
  • a multi-segment filter (e.g., for a smoking article such as a cigarette, a tobacco heating product, a HNB product) that comprises a first and second filter segment; wherein the first filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising embossed paper filtering material and/or embossed other biodegradable filtering material with a particulate additive embedded therein; and wherein the second filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core of paper filtering material or other biodegradable filtering material provides excellent filtration performance while also being biodegradable.
  • a multi-segment filter e.g., for a smoking article such as a cigarette, a tobacco heating product, a HNB product
  • the first filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising embossed paper filtering material and/or embossed other biodegradable filtering material with a particulate additive embedded therein
  • the embossed paper filtering material and/or embossed other biodegradable filtering material (with particulate additive embedded therein) of the first filter segment is gathered into rod form and secured in place (e.g., by a lapped and stuck seam as is known in the art) with a wrapper (e.g., a paper wrapper, e.g., a plug wrap) engaged around the rod.
  • a wrapper e.g., a paper wrapper, e.g., a plug wrap
  • the wrapper may be a paper (e.g., a plugwrap) of basis weight from 25 to 140 gsm, e.g., a paper (e.g., plugwrap) of basis weight from 40 to 120 gsm, e.g., a paper (e.g., plugwrap) of basis weight from 50 to 100 gsm, e.g., a paper (e.g., plugwrap) of basis weight from 60 to 80 gsm, e.g., a paper (e.g., plugwrap) of basis weight of 70 gsm.
  • a paper e.g., a plugwrap of basis weight from 25 to 140 gsm
  • a paper (e.g., plugwrap) of basis weight from 40 to 120 gsm e.g., a paper (e.g., plugwrap) of basis weight from 50 to 100 gsm, e.g., a paper (e.g., plug
  • the wrapper (e.g., a paper wrapper, e.g., a plugwrap) may be non-porous.
  • the wrapper e.g., a paper wrapper, e.g., a plugwrap
  • the particulate additive may be activated carbon (e.g., activated carbon granules), zeolite, ion exchange resin (e.g., a weakly basic anion exchange resin), sepiolite (e.g., sepiolite granules), silica gel, alumina, molecular sieve, carbonaceous polymer resins and diatomaceous earths.
  • the particulate additive may be a mixture of two or more of these additives.
  • a particulate additive e.g., activated carbon
  • a filter or a filter segment of a multi-segment filter may remove (i.e., adsorb) gas phase constituents in the smoke or vapour of the smoking article and consequently improve the filtration performance of the filter.
  • a particulate additive e.g., activated carbon
  • a particulate additive embedded into the embossed paper filtering material and/or embossed other biodegradable filtering material
  • a standard active acetate filter i.e., activated carbon on cellulose acetate tow
  • filters comprising paper impregnated with activated carbon (e.g., carbon impregnated paper).
  • an amount of the plasticiser present in cellulose acetate filters i.e., for fibre bonding and to increase filter firmness
  • the activated carbon or other particulate additive
  • the particulate additive may be of mesh size in the range 12 to 90.
  • the particulate additive is of mesh size 30/70 or mesh size 40/60.
  • mesh size is defined as the number of openings in one square inch of a screen.
  • mesh size 30/70 means particles that are smaller than 30 mesh and larger than 70 mesh
  • mesh size 40/60 means particles that are smaller than 40 mesh and larger than 60 mesh.
  • the applicants have found particulate additives of mesh size 30/70 are particularly suitable for application to paper filtering material and/or other biodegradable filtering material whilst also providing desirable adsorption properties (i.e., to adsorb gas phase constituents).
  • particulate additive is embedded into the embossed paper filtering material and/or embossed other biodegradable filtering material.
  • particulate additive may be embedded into the embossed paper filtering material and/or embossed other biodegradable filtering material without the use of adhesive and/or binder and/or a polymer.
  • a particulate additive e.g., activated carbon
  • embedding the particulate additive may prevent the particles from discharging and falling out of place during use of the multi-segment filter (e.g., in a smoking article) thus providing a more enjoyable experience for the smoker.
  • the particulate additive may include a flavourant e.g., menthol, peppermint, fruit, berry, vanilla, chocolate, coffee etc.
  • a flavourant e.g., menthol, peppermint, fruit, berry, vanilla, chocolate, coffee etc.
  • the additive may be sepiolite granules to which a menthol flavourant has been applied.
  • the multi-segment filter may further comprise a liquid additive.
  • the liquid additive may remove (i.e., adsorb) gas phase constituents in the smoke or vapour of the smoking article and consequently improve the filtration performance of the multi-segment filter.
  • the liquid additive may be a flavour enhancing additive.
  • the flavour enhancing additive may be any known in the art, for example an additive which reduces the “paper taste” (e.g., menthol, peppermint, fruit, berry, vanilla, chocolate, coffee etc. with a suitable carrier e.g., propylene glycol, vegetable glycerine, medium-chain triglyceride (MCT) oil, other oils).
  • a suitable carrier e.g., propylene glycol, vegetable glycerine, medium-chain triglyceride (MCT) oil, other oils.
  • flavour enhancing additive may overcome the “paper taste” sensation typically associated with paper filters and when used in a smoking article (e.g., a cigarette, e.g., a tobacco heating product, e.g., a HNB product) may provide sensory characteristics similar to those from cellulose acetate filtered smoking articles.
  • a smoking article e.g., a cigarette, e.g., a tobacco heating product, e.g., a HNB product
  • a smoking article e.g., a cigarette, e.g., a tobacco heating product, e.g., a HNB product
  • the loading of the particulate additive may be from 1 to 6 mg/mm (e.g., 1 mg/mm, e.g., 2 mg/mm, e.g., 3 mg/mm, e.g., 4 mg/mm, e.g., 5 mg/mm, e.g., 6 mg ⁇ mm).
  • the additive loading is 5 mg/mm.
  • the (embossed) paper filtering material and/or (embossed) other biodegradable filtering material of the first and/or second filter segment may be paper (in any form) which is conventionally used in filters for smoking articles.
  • the paper may be, for example, standard paper, non-woven paper, airlaid paper, carbon impregnated paper (i.e., for higher additive loading) or cellulose/lyocell/viscose based paper.
  • the paper may be a non-woven paper made with non-plastic plant based fibres (e.g., flax, hemp, jute, sisal, abaca, coconut, bamboo, starch or wood pulp) or a blend of these materials.
  • standard or non-woven paper filtering materials are particularly suitable for the first and/or second filter segment because they have excellent filtration properties while also being biodegradable. Further, the applicants have found that they can achieve parity on particulate additive loading when the additive is embedded in standard paper or non-woven paper compared to when the additive is applied to standard cellulose acetate filters.
  • multi-segment filters of the invention which comprise a second filter segment comprising a longitudinally extending (e.g., substantially cylindrical) core of paper filtering material or other biodegradable filtering material may have higher retention of tar, nicotine and gas phase constituents in the smoke or vapour than standard cellulose acetate filters or filters comprising cellulose acetate.
  • the (embossed) paper filtering material and/or (embossed) other biodegradable filtering material of the first and/or second filter segment may be comprised of multiple (i.e., more than one) sheets of paper filtering material and/or other biodegradable filtering material.
  • the paper filtering material and/or other biodegradable filtering material of the first filter segment is embossed
  • the paper filtering material and/or other biodegradable filtering material of the second filter segment may be embossed.
  • the applicants have found that they can achieve a high additive loading and consequently good filtration performance when particulate additive is embedded into embossed sheets of paper filtering material and/or other biodegradable filtering material. Further, embedding additive into embossed sheets of paper filtering material and/or embossed other biodegradable filtering material may prevent any particulate additive discharging and falling out during use of the multi-segment filter.
  • the embossed surface of paper filtering material and/or embossed other biodegradable filtering material may provide suitable surface characteristics for the particulate additive to embed into.
  • the embossed surface may help to achieve high additive loading with minimal additive fall-out.
  • embossed paper filtering material and/or embossed other biodegradable filtering material with particulate additive embedded therein is straightforward to gather into rod form and form a evenly gathered rod paper filtering material and/or other biodegradable filtering material.
  • Table 1 shows that wood pulp paper and hemp paper have the highest biodegradability of all the filtering materials. Further, the airlaid paper (Genia) also demonstrates good biodegradability compared to CA. Table 1 also shows that filters comprising wood pulp paper, hemp paper and airlaid paper (Genia) also have comparable hardness (i.e., firmness) compared to a Mono Acetate filter.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
US18/708,127 2021-11-08 2022-11-08 Active paper Pending US20250009014A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2115989.2 2021-11-08
GB202115989 2021-11-08
PCT/EP2022/081093 WO2023079165A1 (en) 2021-11-08 2022-11-08 Active paper

Publications (1)

Publication Number Publication Date
US20250009014A1 true US20250009014A1 (en) 2025-01-09

Family

ID=79021483

Family Applications (1)

Application Number Title Priority Date Filing Date
US18/708,127 Pending US20250009014A1 (en) 2021-11-08 2022-11-08 Active paper

Country Status (7)

Country Link
US (1) US20250009014A1 (enExample)
EP (2) EP4176736A1 (enExample)
JP (1) JP2024542425A (enExample)
KR (1) KR20240119069A (enExample)
CN (1) CN119012927A (enExample)
PY (1) PY2296521A (enExample)
WO (1) WO2023079165A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES3015074A1 (es) * 2023-10-26 2025-04-29 Miquel Y Costas & Miquel Sa Filtro para articulos de fumar y papel filtrante que lo conforma constituido por fibras de plantas
WO2025114325A1 (en) * 2023-11-28 2025-06-05 Filtrona Pte. Ltd. A sustainable smoking article element
WO2025141090A1 (en) * 2023-12-27 2025-07-03 Philip Morris Products S.A. Plug element
WO2025155079A1 (ko) * 2024-01-15 2025-07-24 주식회사 케이티앤지 라이오셀 토우를 포함하는 흡연 물품
WO2025155071A1 (ko) * 2024-01-15 2025-07-24 주식회사 케이티앤지 라이오셀 토우를 포함하는 흡연 물품

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0922253D0 (en) * 2009-12-21 2010-02-03 British American Tobacco Co Sheet filter materials with additives
GB0922254D0 (en) * 2009-12-21 2010-02-03 British American Tobacco Co Enhancing the disintegration and/or degradation of a smoking article
CA2863465C (en) * 2012-02-23 2017-05-30 Essentra Filter Products Development Co. Pte. Ltd Tobacco smoke filter
EP2712510B1 (en) * 2012-09-28 2016-03-02 Reemtsma Cigarettenfabriken GmbH Smoking article

Also Published As

Publication number Publication date
WO2023079165A1 (en) 2023-05-11
PY2296521A (es) 2024-11-13
EP4429486A1 (en) 2024-09-18
EP4176736A1 (en) 2023-05-10
CN119012927A (zh) 2024-11-22
KR20240119069A (ko) 2024-08-06
JP2024542425A (ja) 2024-11-15

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