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CA2177496C - Filtres pour cigarettes - Google Patents

Filtres pour cigarettes Download PDF

Info

Publication number
CA2177496C
CA2177496C CA002177496A CA2177496A CA2177496C CA 2177496 C CA2177496 C CA 2177496C CA 002177496 A CA002177496 A CA 002177496A CA 2177496 A CA2177496 A CA 2177496A CA 2177496 C CA2177496 C CA 2177496C
Authority
CA
Canada
Prior art keywords
paper
filter
cigarette
fibres
filters
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 - Fee Related
Application number
CA002177496A
Other languages
English (en)
Other versions
CA2177496A1 (fr
Inventor
Calvin Roger Woodings
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.)
Lenzing Fibers Ltd
Original Assignee
Lenzing Fibers 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
Priority claimed from GB939324464A external-priority patent/GB9324464D0/en
Priority claimed from GB9410028A external-priority patent/GB9410028D0/en
Priority claimed from GB9418544A external-priority patent/GB9418544D0/en
Application filed by Lenzing Fibers Ltd filed Critical Lenzing Fibers Ltd
Priority claimed from PCT/GB1994/002581 external-priority patent/WO1995014398A1/fr
Publication of CA2177496A1 publication Critical patent/CA2177496A1/fr
Application granted granted Critical
Publication of CA2177496C publication Critical patent/CA2177496C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/08—Synthetic cellulose fibres from regenerated cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Paper (AREA)

Abstract

Dans un filtre pour cigarettes, le corps du filtre comprend un papier consistant essentiellement en des fibres "lyocell" ou en contenant. L'invention concerne aussi une cigarette dotée d'un tel filtre.
CA002177496A 1993-11-29 1994-11-24 Filtres pour cigarettes Expired - Fee Related CA2177496C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB9324464.8 1993-11-29
GB939324464A GB9324464D0 (en) 1993-11-29 1993-11-29 Cigarette filters
GB9410028A GB9410028D0 (en) 1994-05-19 1994-05-19 Filters and cigarettes containing them
GB9410028.6 1994-05-19
GB9418544A GB9418544D0 (en) 1994-09-15 1994-09-15 Filters and cigarettes containing such filters
GB9418544.4 1994-09-15
PCT/GB1994/002581 WO1995014398A1 (fr) 1993-11-29 1994-11-24 Filtres pour cigarettes

Publications (2)

Publication Number Publication Date
CA2177496A1 CA2177496A1 (fr) 1995-06-01
CA2177496C true CA2177496C (fr) 2007-06-05

Family

ID=38137565

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002177496A Expired - Fee Related CA2177496C (fr) 1993-11-29 1994-11-24 Filtres pour cigarettes

Country Status (1)

Country Link
CA (1) CA2177496C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
CA2177496A1 (fr) 1995-06-01

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Legal Events

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EEER Examination request
MKLA Lapsed