US20150189913A1 - Degradable filter for smoking articles - Google Patents

Degradable filter for smoking articles Download PDF

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Publication number
US20150189913A1
US20150189913A1 US14/412,086 US201314412086A US2015189913A1 US 20150189913 A1 US20150189913 A1 US 20150189913A1 US 201314412086 A US201314412086 A US 201314412086A US 2015189913 A1 US2015189913 A1 US 2015189913A1
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United States
Prior art keywords
filter
fibres
filtration material
regenerated cellulose
molecular weight
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.)
Abandoned
Application number
US14/412,086
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English (en)
Inventor
Enrico Binassi
Yves Jordil
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.)
Philip Morris Products SA
Original Assignee
Philip Morris Products SA
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 Philip Morris Products SA filed Critical Philip Morris Products SA
Assigned to PHILIP MORRIS PRODUCTS, S.A. reassignment PHILIP MORRIS PRODUCTS, S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BINASSI, ENRICO, JORDIL, YVES
Publication of US20150189913A1 publication Critical patent/US20150189913A1/en
Abandoned 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
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • 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
    • A24D3/06—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 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
    • A24D3/18—Mouthpieces for cigars or cigarettes; Manufacture thereof
    • 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

Definitions

  • the present invention relates to a filter for a smoking article, the filter comprising a segment of filtration material comprising regenerated cellulose fibres, cellulose acetate fibers, and triacetin.
  • the present invention also relates to a filter for a smoking article, the filter comprising a segment of filtration material comprising regenerated cellulose fibers and a low molecular weight polyether.
  • the present invention also extends to smoking articles comprising such filters.
  • Filter cigarettes typically comprise a cylindrical rod of tobacco cut filler surrounded by a paper wrapper and a cylindrical filter axially aligned in an abutting end-to-end relationship with the wrapped tobacco rod.
  • the cylindrical filter typically comprises a filtration material, usually cellulose acetate tow, circumscribed by a paper plug wrap.
  • the wrapped tobacco rod and the filter are joined by a band of tipping wrapper, normally formed of an opaque paper material, which circumscribes the entire length of the filter and an adjacent portion of the wrapped tobacco rod.
  • a number of smoking articles in which tobacco is heated rather than combusted have also been proposed in the art.
  • heated smoking articles an aerosol is generated by heating a flavour generating substrate, such as tobacco.
  • Known heated smoking articles include, for example, electrically heated smoking articles and smoking articles in which an aerosol is generated by the transfer of heat from a combustible fuel element or heat source to a physically separate aerosol forming material.
  • volatile compounds are released from the aerosol forming substrate by heat transfer from the fuel element and entrained in air drawn through the smoking article. As the released compounds cool they condense to form an aerosol that is inhaled by the consumer.
  • Smoking articles in which a nicotine-containing aerosol is generated from a tobacco material, tobacco extract or other nicotine source, without combustion or heating are also known.
  • a filter for a smoking article comprising a segment of filtration material, wherein the filtration material comprises randomly oriented regenerated cellulose fibres and cellulose acetate fibers.
  • the filtration material further comprises triacetin, and the filter also includes a wrapper circumscribing the segment of filtration material.
  • regenerable cellulose fibres is used herein to mean cellulose fibres which have been formed by processing a naturally occurring cellulose material to provide cellulose fibres having a desired physically property.
  • a typical process for forming regenerated cellulose fibres includes the steps of: pulping a naturally occurring cellulose material, such as wood chips, to form a pulp; subjecting the pulp to one or more treatment steps to alter the physical properties of the cellulose; and forming fibers of regenerated cellulose from the treated pulp, for example by spinning cellulose fibres by passing the pulp through a spinneret.
  • a filtration material that comprises randomly oriented regenerated cellulose improves the degradation of the filtration material. This is because the randomly oriented fibres can more easily disperse after the filter has been discarded, particularly when compared with the substantially continuous filaments of traditional cellulose acetate tow filters. Increased dispersion of the fibres increases the exposure of the individual fibres to the environment, thus increasing the rate at which the filtration material degrades.
  • filters in accordance with the present invention deliver a similar taste to the consumer when compared with traditional cellulose acetate tow filters.
  • the similar taste sensation is due to the cellulose acetate fibers and the triacetin binder present in the filtration material of filters in accordance with the present invention.
  • the triacetin whilst the triacetin binds to the cellulose acetate fibers to improve the structural integrity of the filtration material, the triacetin does not bind to the regenerated cellulose fibers, thus maintaining the improved degradation of the filtration material.
  • filters in accordance with the present invention address this problem by incorporating cellulose acetate fibers and triacetin into the filter with the regenerated cellulose fibers.
  • the triacetin is preferably present in an amount of about 1% to about 15% by weight of the filtration material in the filter segment, more preferably about 5% to about 10% by weight of the filtration material in the filter segment, most preferably about 3% to about 5% by weight of the filtration material in the filter segment.
  • the filtration material further comprises a low molecular weight polyether to further increase the ability of the filter to selectively retain phenols during smoking of the smoking article.
  • a suitable polyether is polyethylene glycol.
  • the polyethylene glycol has a number average molecular weight of between about 200 and about 3600, preferably between about 400 and about 1600.
  • a filter for a smoking article comprising a segment of filtration material, the filtration material comprising randomly oriented regenerated cellulose fibres and a low molecular weight polyether.
  • the filter further comprises a wrapper circumscribing the segment of filtration material.
  • incorporating a low molecular weight polyether into the filtration material improves the selective phenol retention of the filtration material. This may be important where a regenerated cellulose filter is used to replace a traditional cellulose acetate tow filter, for example, since regenerated cellulose fibers exhibit less selective phenol retention when compared to traditional cellulose acetate.
  • the use of a low molecular polyether to improve the selective phenol retention of a regenerated cellulose filter is illustrated in the examples shown in Table 1 below:
  • the data is normalised with respect to the amount of nicotine which is also passes through the filter during smoking of the article.
  • the data was collected using a smoking test in accordance with ISO 4387: Determination of total and nicotine-free dry particulate matter using a routine analytical smoking machine.
  • a suitable polyether is polyethylene glycol.
  • the polyethylene glycol has a number average molecular weight of between about 200 and about 3600, preferably between about 400 and about 1600.
  • the filtration material may include triacetin.
  • Including triacetin also helps to increase filter stiffness, which reduces the likelihood of filter collapse during handling of the smoking article and during smoking.
  • the triacetin is preferably present in an amount of about 1% to about 15% by weight of the filtration material in the filter segment, more preferably about 5% to about 10% by weight of the filtration material in the filter segment, most preferably about 3% to about 5% by weight of the filtration material in the filter segment.
  • filtration materials in accordance with both aspects of the present invention will degrade by at least about 30%, more preferably at least about 40%, more preferably at least about 50%, within less than about 40 days, preferably less than about 30 days, when measured in accordance with either of the following tests:
  • the random orientation of the fibres in filters according to the present invention advantageously provides the required resistance of the filtration material to mechanical deformation, such that the filter can withstand being grasped by the consumer during smoking of the smoking article.
  • the random orientation of the fibres also provides the required resistance to draw such that the smoking experience using filters in accordance with the present invention is substantially the same as the smoking experience using a traditional cellulose acetate tow filter.
  • Filters in accordance with both aspects of the present invention may have a resistance to draw of between about 40 mm WG and about 250 mm WG for a filter length of 27 millimetres, preferably from about 75 mm WG to about 175 mm WG for a filter length of 27 millimetres, and most preferably from about 100 mm WG to about 150 mm WG for a filter length of 27 millimetres. Resistance to draw is measured using the test procedure described in ISO 6565:2002.
  • the regenerated cellulose fibres are crimped staple fibres, which helps to reduce mechanical degradation of the fibres during processing of the filtration material to form the filter, and during subsequent assembly of the smoking article.
  • the fibres can be crimped using a known method for crimping textile fibres, such as the method described in U.S. Pat. No. 2,647,285.
  • the crimped staple fibres preferably have a stretched length of between about 10 mm and about 30 mm under a tension of between about 5 cN/denier and about 10 cN/denier. This provides an optimum balance between the mechanical integrity of the filter during use and the rate of dispersion of the filtration material after the filter has been discarded.
  • stretched length is used herein to mean the average length of the crimped regenerated cellulose staple fibres when stretched under a given tensional load.
  • the crimped staple fibres have a denier of between about 0.5 and about 8.0, preferably between about 1.5 and about 5.5, most preferably between about 2.0 and about 3.2.
  • the staple fibres have a crimped rate of between about 3 curves and about 10 curves per 10 mm of fibre length, more preferably between about 6 curves and about 8 curves per 10 mm of fibre length.
  • the regenerated cellulose fibres may comprise Lyocell fibres.
  • Lyocell fibres are defined as a regenerated cellulose fibre that is obtained by an organic solvent spinning process.
  • Lyocell fibres suitable for use in filters according to the present invention are commercially available from Lenzing Aktiengesellschaft under the trademark Tencel®.
  • the process of manufacturing Lyocell fibres is more environmentally friendly when compared with the manufacture of traditional cellulose acetate, as well as other regenerated cellulose materials such as rayon, viscose, and such like.
  • the manufacture of cellulose acetate uses catalytic agents containing cobalt or manganese.
  • the manufacture of cellulose acetate also produces a strong, unpleasant odour.
  • the cellulose or ground pulp used to form Lyocell is treated in a closed-loop process in which non-toxic solvents are recycled with a recovery rate of up to 99.5%.
  • bleaching agents are not required in the production of Lyocell fibres. Any remaining emissions from the manufacture of Lyocell can be decomposed in biological purification plants.
  • the filtration material may include other fibres in addition to the regenerated cellulose fibres. Such additional fibres can be incorporated into the filter by mixing the additional fibres with the regenerated cellulose fibres during manufacture of the filtration material.
  • the additional fibres may be bound to the regenerated cellulose fibres using a suitable water-soluble binder, such as those discussed above.
  • the filtration material of filters in accordance with the second aspect of the present invention may include cellulose acetate fibres to increase the mechanical strength of the filter.
  • the filtration material may include additional fibres which alter the appearance of the filtration material.
  • the appearance of the filtration material of filters in accordance with both aspects of the present invention may be altered to more closely resemble the appearance of a traditional cellulose acetate tow filter.
  • Exemplary fibres for altering the appearance of the filtration material include silk, cotton, polyester, linen, nylon and wool.
  • the wrapper may comprise a dissolvable plug wrap.
  • dissolvable is used herein to mean that the plug wrap is capable of dissolving into a solution with water.
  • a dissolvable plug wrap will break open and disperse upon contact with water after the filter has been discarded, therefore exposing the underlying filtration material to the environment and increasing the rate of dispersion and degradation of the filtration material.
  • the plug wrap may be biodegradable.
  • the plug wrap comprises or consists of a sheet of polymeric film, wherein the polymeric film includes at least one water-soluble polymer.
  • a polymeric film to form the plug wrap reduces cost and simplifies the manufacture of the plug wrap.
  • a polymeric film can be formed to inherently posses the required properties of a plug wrap, such as low gas permeability, without the need for any further processing steps during manufacture.
  • the plug wrap is easier to provide a transparent polymeric film than a transparent paper.
  • a 5 mm by 5 mm square sample of the polymeric film will dissolve in less than 72 hours when placed in 25 ml of distilled water at a temperature of 22° C.
  • the test is carried out in a container sized such that the depth of water is sufficient to completely submerge the square sample (although the buoyancy of the sample may be such that it floats on the surface of the water during the test). The sample is deemed to have dissolved when the water-soluble material is no longer visible to the naked eye.
  • Suitable polymeric materials for forming the polymeric film include, but are not limited to, polyvinyl alcohol, cellophane, starch, hydroxypropylmethyl cellulose (HPMC), carboxymethyl cellulose and combinations thereof.
  • Suitable polymeric films may be made entirely of one or more water-soluble polymers or may include additional polymers or inert inorganic fillers, which may or may not be dissolvable.
  • the polymeric film may be single-layered or multi-layered. Where the film comprises multiple layers, the layers may be formed from the same polymeric materials or they may be formed from different polymeric materials. Where the layers are formed from different polymeric materials, each polymeric material comprises at least one water-soluble polymer.
  • a smoking article comprising an aerosol-forming substrate and a mouthpiece secured in axial alignment with the aerosol-forming substrate, the mouthpiece comprising a filter according to either aspect of the present invention.
  • aerosol-forming substrate is used to describe a substrate capable of releasing upon heating volatile compounds, which can form an aerosol.
  • the aerosols generated from aerosol-forming substrates of smoking articles described herein may be visible or invisible and may include vapours (for example, fine particles of substances, which are in a gaseous state, that are ordinarily liquid or solid at room temperature) as well as gases and liquid droplets of condensed vapours.
  • Smoking articles according to the present invention may be filter cigarettes or other smoking articles in which the aerosol-forming substrate comprises tobacco material or another combustible material that is combusted to form smoke.
  • smoking articles according to the present invention may be articles in which the aerosol-forming substrate comprises material that is heated to form an aerosol, rather than combusted.
  • tobacco material or another aerosol forming material is heated by one or more electrical heating elements to produce an aerosol.
  • an aerosol is produced by the transfer of heat from a combustible or chemical heat source to a physically separate aerosol forming material, which may be located within, around or downstream of the heat source.
  • the present invention further encompasses smoking articles in which a nicotine-containing aerosol is generated from a tobacco material, tobacco extract or other nicotine source, without combustion or heating.
  • the controlled composting biodegradation test is an optimised simulation of an intensive aerobic composting process where the biodegradability of a test under dry aerobic conditions is determined.
  • the inoculum consists of stabilised and mature compost derived from the organic fraction of municipal solid waste.
  • the test item is mixed with the inoculum and introduced into static reactor vessels where it is intensively composted under optimum oxygen, temperature and moisture conditions.
  • the test is performed according to ISO 14855 (2005) method “Determination of the Ultimate Aerobic Biodegradability and Disintegration of Plastics under Controlled Composting Conditions”, but in duplicate instead of in triplicate.
  • This test determines the aquatic, aerobic biodegradation under laboratory conditions.
  • the test material is placed in a chemically defined liquid medium and spiked with micro-organisms.
  • oxygen is consumed and carbonaceous material is converted to gaseous CO 2 .
  • NaOH pellets trap the CO 2 released and the induced-pressure drop is directly related to the consumed oxygen and the biodegradation of the test material.
  • FIG. 1 shows a smoking article in accordance with an embodiment of the present invention
  • FIG. 2 shows the smoking article of FIG. 1 with the filter unwrapped.
  • the filter cigarette 10 shown in FIGS. 1 and 2 comprises a wrapped rod 12 of tobacco cut filler which is attached at one end to an axially aligned filter 14 in accordance with the present invention.
  • the filter 14 comprises a single segment of filtration material 16 , the filtration material 16 comprising randomly oriented regenerated cellulose fibres and cellulose acetate fibers, and triacetin.
  • the filtration material 16 may also include other fibres to alter the appearance of the filtration material 16 , such as silk fibres.
  • the filtration material 16 may also comprise one or more binders and may include one or more additives to improve selective phenol retention.
  • the segment of filtration material 16 is circumscribed by a plug wrap 18 , which may be dissolvable and may consist of a sheet of polymeric film comprising at least one water-soluble polymer.
  • the wrapped tobacco rod 12 and the filter 14 are joined by a band 20 of tipping paper, which circumscribes the entire length of the filter 14 and an adjacent portion of the wrapped tobacco rod 12 .

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  • 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)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)
  • Woven Fabrics (AREA)
US14/412,086 2012-07-13 2013-07-11 Degradable filter for smoking articles Abandoned US20150189913A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12176441.9 2012-07-13
EP12176441 2012-07-13
PCT/EP2013/064739 WO2014009498A1 (en) 2012-07-13 2013-07-11 Degradable filter for smoking articles

Publications (1)

Publication Number Publication Date
US20150189913A1 true US20150189913A1 (en) 2015-07-09

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US14/412,086 Abandoned US20150189913A1 (en) 2012-07-13 2013-07-11 Degradable filter for smoking articles

Country Status (10)

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US (1) US20150189913A1 (ru)
EP (1) EP2871982A1 (ru)
JP (1) JP2015523079A (ru)
KR (1) KR20150035800A (ru)
CN (1) CN104411189A (ru)
MX (1) MX2014015903A (ru)
RU (1) RU2634810C2 (ru)
SG (1) SG11201408777WA (ru)
UA (1) UA115062C2 (ru)
WO (1) WO2014009498A1 (ru)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180279673A1 (en) * 2017-03-29 2018-10-04 Rai Strategic Holdings, Inc. Aerosol delivery device including substrate with improved absorbency properties
US10524500B2 (en) * 2016-06-10 2020-01-07 R.J. Reynolds Tobacco Company Staple fiber blend for use in the manufacture of cigarette filter elements
CN111655052A (zh) * 2019-01-04 2020-09-11 德尔福特集团有限公司 吸烟制品的可生物降解的区段
EP3881687A4 (en) * 2018-11-14 2022-08-17 Japan Tobacco Inc. FILTER SEGMENT, NON-COMBUSTION HEATING TYPE SMOKING ARTICLE AND NON-COMBUSTION HEATING TYPE SMOKING SYSTEM
US11589608B2 (en) * 2018-02-01 2023-02-28 Jt International S.A. Biodegradable filter with improved taste
WO2023067146A1 (en) * 2021-10-22 2023-04-27 Essentra Filter Products Development Co. Pte. Ltd. Paper tube

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9119419B2 (en) * 2012-10-10 2015-09-01 R.J. Reynolds Tobacco Company Filter material for a filter element of a smoking article, and associated system and method
KR101455002B1 (ko) 2013-06-28 2014-11-03 코오롱인더스트리 주식회사 담배필터용 라이오셀 소재 및 그 제조방법
KR102211219B1 (ko) 2014-06-30 2021-02-03 코오롱인더스트리 주식회사 담배필터용 이형단면 라이오셀 소재 및 그 제조방법
AT515930B1 (de) 2014-08-20 2016-01-15 Lenzing Akiengesellschaft Saugfähiger Artikel und seine Verwendung
KR102211186B1 (ko) 2014-12-31 2021-02-03 코오롱인더스트리 주식회사 담배필터용 라이오셀 소재 및 그 제조방법
TWI703936B (zh) 2015-03-27 2020-09-11 瑞士商菲利浦莫里斯製品股份有限公司 用於電熱式氣溶膠產生物件之紙質包覆材料
CN104872816B (zh) * 2015-03-31 2018-08-14 湖南中烟工业有限责任公司 一种用lyocell丝束制备卷烟滤棒的方法
DE102016105235B4 (de) * 2016-03-21 2019-02-14 Delfortgroup Ag Verbessertes Filterpapier für Zigarettenfilter, dessen Herstellung und Filterzigarette
US20190174816A1 (en) * 2016-06-30 2019-06-13 Philip Morris Products S.A. Smoking article having transparent wrapper
US20210051997A1 (en) * 2017-12-28 2021-02-25 Philip Morris Products S.A. Firm filter for aerosol-generating article
CN109700070B (zh) * 2019-03-01 2022-07-26 南通醋酸纤维有限公司 一种能降低卷烟烟气温度的颗粒及其制备方法和应用
WO2021115619A1 (de) 2019-12-13 2021-06-17 Delfortgroup Ag Wasserstrahlverfestigtes filtermaterial für rauchartikel
GB201919107D0 (en) * 2019-12-20 2020-02-05 Nicoventures Trading Ltd An article for use in a non-combustible aerosol provision system
CN116096513A (zh) * 2020-10-20 2023-05-09 大赛璐美华株式会社 生物降解性树脂的生物降解性促进剂
KR20230085383A (ko) 2021-12-07 2023-06-14 주식회사 케이티앤지 라이오셀 토우를 포함하는 담배 필터
WO2023112267A1 (ja) * 2021-12-16 2023-06-22 日本たばこ産業株式会社 非燃焼加熱型スティック
WO2024162779A1 (ko) * 2023-02-03 2024-08-08 주식회사 케이티앤지 라이오셀 토우를 포함하는 흡연 물품용 필터, 및 이를 포함하는 흡연 물품
WO2024162780A1 (ko) * 2023-02-03 2024-08-08 주식회사 케이티앤지 라이오셀 토우를 포함하는 흡연 물품용 필터, 및 이를 포함하는 흡연 물품
WO2024162778A1 (ko) * 2023-02-03 2024-08-08 주식회사 케이티앤지 라이오셀 토우를 포함하는 흡연 물품용 필터, 제조 방법 및 이를 포함하는 흡연 물품

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671757A (en) * 1993-11-29 1997-09-30 Courtaulds Fibres (Holdings) Limited Cigarette filters
US6776168B1 (en) * 1999-10-22 2004-08-17 Rhodia Acetow Gmbh Disintegratable cigarette filter
US20090151738A1 (en) * 2007-12-17 2009-06-18 Celanese Acetate Llc Degradable cigarette filter
US20120000480A1 (en) * 2010-06-30 2012-01-05 Sebastian Andries D Biodegradable cigarette filter
US20120325231A1 (en) * 2011-06-23 2012-12-27 Eastman Chemical Company Filters having improved degradation and methods of making them
US20150164133A1 (en) * 2012-05-30 2015-06-18 British American Tabacco (Investments) Limited Filter for a Smoking Article

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500634C2 (sv) * 1992-12-22 1994-08-01 House Of Blend Ab Filtercigarett
CA2127817C (en) * 1993-07-13 2007-07-03 Hitoshi Tsugaya Tobacco filters and method of producing the same
GB9404547D0 (en) * 1994-03-09 1994-04-20 Courtaulds Fibres Holdings Ltd Fibre production process
JP3420359B2 (ja) * 1994-10-21 2003-06-23 ダイセル化学工業株式会社 たばこ煙用フィルター素材、繊維状セルロースエステル及びその製造方法
US5709227A (en) * 1995-12-05 1998-01-20 R. J. Reynolds Tobacco Company Degradable smoking article
JPH09316420A (ja) * 1996-05-27 1997-12-09 Daicel Chem Ind Ltd 水溶性ホットメルト接着剤と、これを用いたたばこフィルター及びその製造方法
EP1029461A3 (de) * 1999-02-17 2001-06-13 Dieter Meyer Filtermaterial zur Reduzierung von Schadstoffen im Tabakrauch
US7878962B2 (en) * 2005-05-03 2011-02-01 Philip Morris Usa Inc. Cigarettes and filter subassemblies with squeezable flavor capsule and methods of manufacture
PL1942753T3 (pl) * 2005-11-01 2009-10-30 Philip Morris Products Sa Wyrób tytoniowy z ręcznie uwalnianym środkiem zapachowym
UA92214C2 (ru) * 2006-03-31 2010-10-11 Филип Моррис Продактс С.А. Фильтровальный элемент, сигарета, которая включает его в себе, и способ изготовления фильтровального элемента
DE102007029831A1 (de) * 2007-06-28 2009-01-08 Reemtsma Cigarettenfabriken Gmbh Verfahren zum Herstellen von Tabakrauchfiltern
TW200936065A (en) * 2008-01-23 2009-09-01 Filtrona Int Ltd Tobacco smoke filter
GB0910373D0 (en) * 2009-06-16 2009-07-29 Filtrona Int Ltd Tabacco smoke filter
GB2474694B (en) * 2009-10-23 2011-11-02 Innovia Films Ltd Biodegradable composites

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671757A (en) * 1993-11-29 1997-09-30 Courtaulds Fibres (Holdings) Limited Cigarette filters
US6776168B1 (en) * 1999-10-22 2004-08-17 Rhodia Acetow Gmbh Disintegratable cigarette filter
US20090151738A1 (en) * 2007-12-17 2009-06-18 Celanese Acetate Llc Degradable cigarette filter
US20120000480A1 (en) * 2010-06-30 2012-01-05 Sebastian Andries D Biodegradable cigarette filter
US20120325231A1 (en) * 2011-06-23 2012-12-27 Eastman Chemical Company Filters having improved degradation and methods of making them
US20150164133A1 (en) * 2012-05-30 2015-06-18 British American Tabacco (Investments) Limited Filter for a Smoking Article

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10524500B2 (en) * 2016-06-10 2020-01-07 R.J. Reynolds Tobacco Company Staple fiber blend for use in the manufacture of cigarette filter elements
US20180279673A1 (en) * 2017-03-29 2018-10-04 Rai Strategic Holdings, Inc. Aerosol delivery device including substrate with improved absorbency properties
US10440995B2 (en) * 2017-03-29 2019-10-15 Rai Strategic Holdings, Inc. Aerosol delivery device including substrate with improved absorbency properties
US11589608B2 (en) * 2018-02-01 2023-02-28 Jt International S.A. Biodegradable filter with improved taste
EP3881687A4 (en) * 2018-11-14 2022-08-17 Japan Tobacco Inc. FILTER SEGMENT, NON-COMBUSTION HEATING TYPE SMOKING ARTICLE AND NON-COMBUSTION HEATING TYPE SMOKING SYSTEM
CN111655052A (zh) * 2019-01-04 2020-09-11 德尔福特集团有限公司 吸烟制品的可生物降解的区段
WO2023067146A1 (en) * 2021-10-22 2023-04-27 Essentra Filter Products Development Co. Pte. Ltd. Paper tube

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CN104411189A (zh) 2015-03-11
WO2014009498A1 (en) 2014-01-16
MX2014015903A (es) 2015-12-15
KR20150035800A (ko) 2015-04-07
SG11201408777WA (en) 2015-01-29
RU2634810C2 (ru) 2017-11-03
RU2014153532A (ru) 2016-09-10
UA115062C2 (uk) 2017-09-11
JP2015523079A (ja) 2015-08-13

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