CA2177496A1 - Cigarette filters - Google Patents

Cigarette filters

Info

Publication number
CA2177496A1
CA2177496A1 CA002177496A CA2177496A CA2177496A1 CA 2177496 A1 CA2177496 A1 CA 2177496A1 CA 002177496 A CA002177496 A CA 002177496A CA 2177496 A CA2177496 A CA 2177496A CA 2177496 A1 CA2177496 A1 CA 2177496A1
Authority
CA
Canada
Prior art keywords
cigarette filters
filter
cigarette
consisting essentially
relates
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.)
Granted
Application number
CA002177496A
Other languages
French (fr)
Other versions
CA2177496C (en
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
Individual
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 Individual filed Critical Individual
Priority claimed from PCT/GB1994/002581 external-priority patent/WO1995014398A1/en
Publication of CA2177496A1 publication Critical patent/CA2177496A1/en
Application granted granted Critical
Publication of CA2177496C publication Critical patent/CA2177496C/en
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)
  • Paper (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

A cigarette filter in which the body of the filter comprises paper containing, or consisting essentially of, lyocell fibres. The invention also relates to a cigarette incorporating such as a filter.
CA002177496A 1993-11-29 1994-11-24 Cigarette filters Expired - Fee Related CA2177496C (en)

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
GB9410028.6 1994-05-19
GB9410028A GB9410028D0 (en) 1994-05-19 1994-05-19 Filters and cigarettes containing them
GB9418544.4 1994-09-15
GB9418544A GB9418544D0 (en) 1994-09-15 1994-09-15 Filters and cigarettes containing such filters
PCT/GB1994/002581 WO1995014398A1 (en) 1993-11-29 1994-11-24 Cigarette filters

Publications (2)

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

Family

ID=38137565

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002177496A Expired - Fee Related CA2177496C (en) 1993-11-29 1994-11-24 Cigarette filters

Country Status (1)

Country Link
CA (1) CA2177496C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104872816A (en) * 2015-03-31 2015-09-02 湖南中烟工业有限责任公司 Method for preparing cigarette filter rods by Lyocell bundles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104872816A (en) * 2015-03-31 2015-09-02 湖南中烟工业有限责任公司 Method for preparing cigarette filter rods by Lyocell bundles
CN104872816B (en) * 2015-03-31 2018-08-14 湖南中烟工业有限责任公司 A method of with lyocell tow preparings for cigarette filter rod

Also Published As

Publication number Publication date
CA2177496C (en) 2007-06-05

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed