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EP0474940B2 - Filtre à fumée concentrique avec des milieux filtrants en câble de filaments et en bande - Google Patents
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EP0474940B2 - Filtre à fumée concentrique avec des milieux filtrants en câble de filaments et en bande - Google Patents

Filtre à fumée concentrique avec des milieux filtrants en câble de filaments et en bande Download PDF

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Publication number
EP0474940B2
EP0474940B2 EP90313555A EP90313555A EP0474940B2 EP 0474940 B2 EP0474940 B2 EP 0474940B2 EP 90313555 A EP90313555 A EP 90313555A EP 90313555 A EP90313555 A EP 90313555A EP 0474940 B2 EP0474940 B2 EP 0474940B2
Authority
EP
European Patent Office
Prior art keywords
filter
smoking
plug
central core
tow
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.)
Expired - Lifetime
Application number
EP90313555A
Other languages
German (de)
English (en)
Other versions
EP0474940A1 (fr
EP0474940B1 (fr
Inventor
Cynthia W. Arterbery
W. Timothy Callaham
Gus D. Keritsis
Morris F. White, Jr.
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
Philip Morris Products Inc
Original Assignee
Philip Morris Products SA
Philip Morris Products Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24285429&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0474940(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Philip Morris Products SA, Philip Morris Products Inc filed Critical Philip Morris Products SA
Publication of EP0474940A1 publication Critical patent/EP0474940A1/fr
Publication of EP0474940B1 publication Critical patent/EP0474940B1/fr
Application granted granted Critical
Publication of EP0474940B2 publication Critical patent/EP0474940B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A24D3/06—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 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
    • 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

Definitions

  • filtering media other than cellulose acetate.
  • One such medium is an appropriate sheet or web material.
  • the web material which is gathered into a cylindrical plug, can be paper or any other web material, including cellulose acetate in sheet form. When such web materials are used as filters, they are frequently corrugated before being gathered. Paper webs may also be creped to improve tensile strength.
  • segment 52 is constructed like filter 12, but has a length of only 18-20 mm, while segment 53 is a 7-9 mm long plug of 2.6/42000 cellulose acetate for tow having a denier per fiber of 2.6, a total denier of 42,000, and a "Y" cross-sectional shape.
  • Total filter RTD is between about 125 mm W.G. and about 175 mm W.G., preferably about 141 mm W.G.
  • the RTD of segment 53 is between about 15 mm W.G. and about 45 mm W.G., preferably about 36 mm W.G.
  • the RTD of segment 52 is between about 85 mm W.G.
  • the cigarette also exhibited a pattern of visible deposition of filtrate on the end of the filter much more like a tow filter as opposed to a web filter, even though most of the filtrate was deposited on the web core. This is believed to be the result of the smoke being forced into core 21 as the ventilation air is introduced at holes 15, and then trying to spread back into peripheral tow layer 20 through permeable wrapper 23.
  • the filter of this invention will improve the taste of low delivery cigarettes. It is also possible that the filter of this invention may offer similar performance at higher deliveries. For example, a medium delivery cigarette may be perceived as a full-flavor cigarette.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Claims (21)

  1. Filtre de fumée comprenant un tampon de filtre (12, 31, 52, 62) ayant une âme centrale (21, 40, 54, 64) d'une une première matière de filtration, une couche périphérique (20, 41, 55, 65) d'une seconde matière de filtration entourant ladite âme centrale et une enveloppe de bout entourant la couche périphérique, l'une desdites première et seconde matière étant une filasse fibreuse et l'autre desdites première et seconde matières de filtration étant une matière en feuilles ondulées et resserrées, l'enveloppe ayant des trous (15) traversant cette dernière pour l'admission d'air dans la couche périphérique, le tampon de filtre ayant une résistance à l'aspiration comprise entre environ 130 mm de colonne d'eau et environ 195mm de colonne d'eau, ladite âme centrale (21, 40) ayant une resistance à l'aspiration comprise entre environ 285mm de colonne d'eau et environ 450mm de colonne d'eau et l'âme centrale est entourée d'une enveloppe de tampon poreuse (23, 43) pour permettre un passage de fumée entre la couche périphérique et le noyau central.
  2. Filtre de fumée selon la revendication 1 dans lequel ladite première matière de filtration (21) est ladite matière en feuilles et ladite seconde matière de filtration (20) est ladite filasse fibreuse.
  3. Filtre de fumée salon la revendication 2 dans lequel ladite seconde matière est une filasse d'acétate de cellulose ayant un denier par filament d'environ 8,0 et un denier total compris entre 25000 et 30000, de préférence aux environs de 30000.
  4. Filtre de fumée selon la revendication 1 dans lequel ladite première matière de filtration (40) est ladite filasse fibreuse et ladite seconde matière de filtration (41) est ladite matière en feuilles.
  5. Filtre de fumée selon la revendication 4 dans lequel ladite première matière fibreuse est une filasse d'acétate de cellulose ayant un denier par filament d'environ 1,6 et un dernier total d'environ 35000.
  6. Filtre de fumée selon l'une quelconque des revendications 1 à 5, dans lequel ladite matière en feuilles est du papier.
  7. Filtre de fumée selon la revendication 6 dans lequel ledit papier est crêpé avant d'être ondulé et resserre.
  8. Filtre de fumée selon l'une quelconque des revendications 1 à 5 dans lequel ladite matière en feuilles est formée d'une feuille non tissée.
  9. Filtre de fumée selon la revendication 8 dans lequel ladite feuille non tissée est une feuille d'acétate de cellulose.
  10. Filtre de fumée selon l'une quelconque des revendications 1 à 9 dans lequel ladite matière en feuilles ondulées et resserrées est entourée d'une enveloppe de tampon (23, 42).
  11. Filtre de fumée selon la revendication 10 dans lequel ladite enveloppe de tampon (23) contient des agents de saveur.
  12. Filtre de fumée selon la revendication 11 dans lequel ladite enveloppe (23) de tampon comprend un matériau contenant du tabac, tel qu'une feuille de tabac reconstituée.
  13. Filtre de fumée selon la revendication 11 dans lequel ladite enveloppe de tampon (23) comprend du papier d'enveloppe de tampon, auquel des agents de saveur ont été rajoutés, de préférence des constituants solubles du tabac.
  14. Filtre de fumée selon la revendication 1, 2 ou 3 ayant un rendement de filtration d'environ 61% en l'absence de ventilation.
  15. Filtre de fumée selon l'une quelconque des revendications précédentes ayant un taux de ventilation compris entre 65% et 75%.
  16. Filtre de fumée selon l'une quelconque des revendications précédentes dans lequel ladite âme (21, 40) a une aire de section occupant environ 60% de l'aire de section totale dudit filtre.
  17. Filtre de fumée selon la revendication 1, 2 ou 3 dans lequel ledit filtre a une résistance à l'aspiration d'environ 146mm de colonne d'eau, ladite âme centrale (21) ayant une résistance à l'aspiration d'environ 400mm de colonne d'eau.
  18. Filtre de fumée selon la revendication 1, 4 ou 5 dans lequel ledit filtre a une résistance à l'aspiration comprise entre environ 165mm et 195mm de colonne d'eau, ladite âme centrale (40) ayant une résistance à l'aspiration comprise entre environ 285mm et 385mm de colonne d'eau,
  19. Filtre de fumée selon l'une quelconque des revendications 1 à 16 comprenant en outre un second tampon de filtration (53) d'une filasse d'acétate de cellulose, adjacent au premier tampon (52) de filtration.
  20. Filtre de fumée selon l'une quelconque des revendications 1 à 18, comprenant en outre une enveloppe de bout (14) qui l'entoure, cette enveloppe de bout dépassant d'une extrémité du tampon (62) de filtration afin que le filtre soit fixé a une cigarette et dépassant de l'extrémité opposée au tampon de filtration en formant une cavité dans le filtre à l'extrémité tournée vers la bouche.
  21. Filtre selon l'une quelconque des revendications 1 à 17, dans lequel la couche périphérique (20) a une résistance à l'aspiration inférieure à celle de l'âme centrale.
EP90313555A 1990-08-24 1990-12-13 Filtre à fumée concentrique avec des milieux filtrants en câble de filaments et en bande Expired - Lifetime EP0474940B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57187890A 1990-08-24 1990-08-24
US571878 1990-08-24

Publications (3)

Publication Number Publication Date
EP0474940A1 EP0474940A1 (fr) 1992-03-18
EP0474940B1 EP0474940B1 (fr) 1994-12-14
EP0474940B2 true EP0474940B2 (fr) 1999-10-06

Family

ID=24285429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90313555A Expired - Lifetime EP0474940B2 (fr) 1990-08-24 1990-12-13 Filtre à fumée concentrique avec des milieux filtrants en câble de filaments et en bande

Country Status (17)

Country Link
EP (1) EP0474940B2 (fr)
JP (1) JP2767322B2 (fr)
KR (1) KR0175139B1 (fr)
AT (1) ATE115369T1 (fr)
AU (1) AU635095B2 (fr)
CA (1) CA2031727C (fr)
DE (1) DE69015185T3 (fr)
DK (1) DK0474940T4 (fr)
ES (1) ES2066157T5 (fr)
FI (1) FI94385C (fr)
GR (2) GR3015326T3 (fr)
HK (1) HK162995A (fr)
HU (1) HU212772B (fr)
NO (1) NO176464C (fr)
PL (1) PL166314B1 (fr)
RU (1) RU1836040C (fr)
TR (1) TR25717A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101999755A (zh) * 2010-12-17 2011-04-06 南通烟滤嘴有限责任公司 纸芯同轴滤棒

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5746230A (en) * 1990-08-24 1998-05-05 Philip Morris Incorporated Concentric smoking filter having discrete tow and web filter media
US5622190A (en) * 1990-08-24 1997-04-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
US5365951A (en) * 1990-08-24 1994-11-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
EP0638248A1 (fr) * 1993-08-12 1995-02-15 Philip Morris Products Inc. Procédé et appareil de fabrication de filtres concentriques composés de deux ou plusieurs matériaux
GB9321536D0 (en) * 1993-10-19 1993-12-08 British American Tobacco Co Smoking articles
DE19718296B4 (de) * 1997-04-30 2006-06-29 British American Tobacco (Germany) Gmbh Ventilierte Filtercigarette mit einem koaxialen Filterelement
DE19722812C2 (de) 1997-05-30 2003-02-13 Bat Cigarettenfab Gmbh Ultraleicht-Koaxialcigarette mit mehrteiligem Filter
HU228293B1 (en) * 1997-11-13 2013-08-28 Reemtsma H F & Ph Cigarette with reduced gas phase
DE10009829A1 (de) * 2000-03-01 2001-09-20 Reemtsma H F & Ph Rauchartikel
GB0713905D0 (en) † 2007-07-17 2007-08-29 British American Tobacco Co Cellulose acetate thread in filter
GB0811552D0 (en) * 2008-06-24 2008-07-30 British American Tobacco Co Filter for a smoking article
GB0816933D0 (en) * 2008-09-16 2008-10-22 British American Tobacco Co Filter for a smoking article
PT2978327T (pt) 2013-03-28 2019-02-11 Philip Morris Products Sa Artigo para fumar incluindo um membro de distribuição de aromatizante
CN104188106A (zh) * 2014-08-28 2014-12-10 云南中烟工业有限责任公司 一种高截留效率的卷烟滤嘴及应用
EP3643185A4 (fr) * 2017-06-19 2021-05-26 Japan Tobacco, Inc. Filtre d'article à fumer et son procédé de production
KR102391290B1 (ko) * 2020-04-22 2022-04-26 주식회사 케이티앤지 흡연 물품용 마우스피스 및 이를 포함하는 흡연 물품 조립체와 흡연 물품 패키지

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396061A (en) * 1964-06-01 1968-08-06 Celanese Corp Smoke filters
US4034765A (en) * 1975-10-30 1977-07-12 Liggett & Myers Incorporated Tobacco smoke filter
US4082098A (en) * 1976-10-28 1978-04-04 Olin Corporation Flavored cigarette
AU4119078A (en) 1977-11-18 1980-05-08 Philip Morris Inc Filter system
US4291711A (en) * 1979-03-27 1981-09-29 American Filtrona Corporation Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
US4355995A (en) * 1979-03-27 1982-10-26 American Filtrona Corporation Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
AU556902B2 (en) * 1981-12-18 1986-11-27 Cigarette Components Limited Tobacco smoke filter
DE3207683C2 (de) * 1982-03-03 1986-06-05 B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg Filter für einen rauchbaren Artikel
GB2119221B (en) * 1982-04-05 1986-05-29 Filtrona Ltd Cigarette filter
DE3743597C1 (de) * 1987-12-22 1989-02-16 Bat Cigarettenfab Gmbh Koaxialcigarette
DE3901226C1 (fr) * 1989-01-17 1990-07-26 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101999755A (zh) * 2010-12-17 2011-04-06 南通烟滤嘴有限责任公司 纸芯同轴滤棒

Also Published As

Publication number Publication date
KR0175139B1 (ko) 1999-02-18
AU635095B2 (en) 1993-03-11
ES2066157T5 (es) 1999-12-16
NO905639D0 (no) 1990-12-28
PL288311A1 (en) 1992-02-24
ATE115369T1 (de) 1994-12-15
JPH06269270A (ja) 1994-09-27
TR25717A (tr) 1993-09-01
HUT64455A (en) 1994-01-28
HU908366D0 (en) 1991-07-29
DE69015185T2 (de) 1995-05-24
NO176464C (no) 1995-04-12
DE69015185T3 (de) 2000-03-09
FI906092A0 (fi) 1990-12-11
JP2767322B2 (ja) 1998-06-18
HK162995A (en) 1995-10-27
EP0474940A1 (fr) 1992-03-18
ES2066157T3 (es) 1995-03-01
FI94385B (fi) 1995-05-31
NO176464B (no) 1995-01-02
CA2031727C (fr) 2001-04-10
GR3015326T3 (en) 1995-06-30
EP0474940B1 (fr) 1994-12-14
KR920003914A (ko) 1992-03-27
CA2031727A1 (fr) 1992-02-25
RU1836040C (ru) 1993-08-23
FI94385C (fi) 1995-09-11
DK0474940T3 (da) 1995-04-03
DK0474940T4 (da) 2000-04-03
FI906092L (fi) 1992-02-25
HU212772B (en) 1996-11-28
NO905639L (no) 1992-02-25
PL166314B1 (pl) 1995-05-31
GR3032144T3 (en) 2000-04-27
AU6774890A (en) 1992-02-27
DE69015185D1 (de) 1995-01-26

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