GB749340A - Improved cigarette filter and process for manufacturing same - Google Patents

Improved cigarette filter and process for manufacturing same

Info

Publication number
GB749340A
GB749340A GB11861/54A GB1186154A GB749340A GB 749340 A GB749340 A GB 749340A GB 11861/54 A GB11861/54 A GB 11861/54A GB 1186154 A GB1186154 A GB 1186154A GB 749340 A GB749340 A GB 749340A
Authority
GB
United Kingdom
Prior art keywords
tow
cellulose
viscose
filaments
solution
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
Application number
GB11861/54A
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.)
Akzo NV
Original Assignee
Algemene Kunstzijde Unie NV
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 Algemene Kunstzijde Unie NV filed Critical Algemene Kunstzijde Unie NV
Publication of GB749340A publication Critical patent/GB749340A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0237—Filter rod forming processes by extrusion
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials

Abstract

A cigarette filter comprises a piece of tow of substantially parallel regenerated cellulose filaments having a rough irregular surface and cavities due to the use in filament formation of a viscose in which air or other gas is finely divided, the viscose being extruded through a multiple-orifice spinneret into a coagulating bath from which the tow thus formed is removed at considerably less than, e.g. approximately one-fifth of, the linear extrusion speed, washed and dried. Before washing, the tow may be treated with hot water to complete the regeneration. Before drying, the tow is desulphurized and bleached and, before or after drying, it may be coated with a binder by being immersed in an aqueous solution of a cellulose ether, e.g. hydroxyethyl cellulose, methyl-cellulose or carboxymethylcellulose, being subsequently passed through a shaping device to form a round bundle of filaments and subjected to a vacuum treatment to remove excess solution, and being finally dried in a channel-like drier to retain its circular formation. Adsorption agents such as activated silica gel or activated alumina may be incorporated, e.g. by adding them to the binder solution. Quantitative process examples are given.ALSO:A cigarette filter comprises a piece of tow of substantially parallel regenerated cellulose filaments having a rough irregular surface and cavities due as described to the use in filament formation of a viscose in which air or other gas is finely divided, the viscose being extruded through a multiple-orifice spinneret into a coagulating bath from which the tow thus formed is removed at considerably less than, e.g. approximately one-fifth of, the linear extrusion speed, washed and dried. Before washing, the tow may be treated with hot water to complete the regeneration. Before drying, the tow is desulphurized and bleached, and, before or after drying, it may be coated with a binder by being immersed in a water solution of a cellulose ether e.g. hydroxyethyl cellulose, methyl-cellulose or carboxymethyl cellulose, being subsequently passed through a shaping device to form a round bundle of filaments and subjected to a vacuum treatment to remove excess solution, and being finally dried in a channel-like drier to retain its circular formation. Adsorption agents such as activated silica gel or activated alumina may be incorporated as by adding them to the binder solution. Quantitative process examples are given.
GB11861/54A 1953-06-30 1954-04-23 Improved cigarette filter and process for manufacturing same Expired GB749340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US749340XA 1953-06-30 1953-06-30

Publications (1)

Publication Number Publication Date
GB749340A true GB749340A (en) 1956-05-23

Family

ID=22122532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11861/54A Expired GB749340A (en) 1953-06-30 1954-04-23 Improved cigarette filter and process for manufacturing same

Country Status (4)

Country Link
BE (1) BE528310A (en)
DE (1) DE1041847B (en)
GB (1) GB749340A (en)
NL (2) NL186392B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966157A (en) * 1957-06-07 1960-12-27 Eastman Kodak Co Polyolefin tobacco smoke filters
US3015873A (en) * 1955-03-08 1962-01-09 Schiesser Ag Trikotfabriken Complex artificial filaments
DE1136256B (en) * 1954-08-16 1962-09-06 Eastman Kodak Co A strand consisting of threads for the manufacture of filter elements for tobacco smoke filters
US3329544A (en) * 1961-05-11 1967-07-04 Cigarette Components Ltd Method of producing filter cores
DE1268036B (en) * 1962-04-11 1968-05-09 Celanese Corp Filters for tobacco smoke or other gases
US3557801A (en) * 1965-10-14 1971-01-26 Celanese Corp Cigarette smoke filter material
WO2006108470A1 (en) 2005-04-15 2006-10-19 Reemtsma Cigarettenfabriken Gmbh Tabacco smoke filter
WO2009000453A3 (en) * 2007-06-28 2009-03-19 Reemtsma H F & Ph Method for the production of tobacco smoke filters
CN102798270A (en) * 2011-05-27 2012-11-28 北京航天试验技术研究所 Method and equipment for drying filter stick
EP3072405A1 (en) 2015-03-27 2016-09-28 Cordenka GmbH & Co. KG Cigarette filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4013304C2 (en) * 1990-04-26 1993-11-25 Bat Cigarettenfab Gmbh Process for the production of cigarette filters and cigarette filters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB419629A (en) * 1932-10-01 1934-11-15 Int Latex Processes Ltd Improvements in or relating to porous fibrous products and method of making same
GB665278A (en) * 1948-12-10 1952-01-23 British Celanese Improvements in or relating to cigarette filter tips

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136256B (en) * 1954-08-16 1962-09-06 Eastman Kodak Co A strand consisting of threads for the manufacture of filter elements for tobacco smoke filters
US3015873A (en) * 1955-03-08 1962-01-09 Schiesser Ag Trikotfabriken Complex artificial filaments
US2966157A (en) * 1957-06-07 1960-12-27 Eastman Kodak Co Polyolefin tobacco smoke filters
US3329544A (en) * 1961-05-11 1967-07-04 Cigarette Components Ltd Method of producing filter cores
DE1268036B (en) * 1962-04-11 1968-05-09 Celanese Corp Filters for tobacco smoke or other gases
US3557801A (en) * 1965-10-14 1971-01-26 Celanese Corp Cigarette smoke filter material
WO2006108470A1 (en) 2005-04-15 2006-10-19 Reemtsma Cigarettenfabriken Gmbh Tabacco smoke filter
WO2009000453A3 (en) * 2007-06-28 2009-03-19 Reemtsma H F & Ph Method for the production of tobacco smoke filters
CN102798270A (en) * 2011-05-27 2012-11-28 北京航天试验技术研究所 Method and equipment for drying filter stick
CN102798270B (en) * 2011-05-27 2015-07-22 北京航天试验技术研究所 Method and equipment for drying filter stick
EP3072405A1 (en) 2015-03-27 2016-09-28 Cordenka GmbH & Co. KG Cigarette filter

Also Published As

Publication number Publication date
BE528310A (en)
DE1041847B (en) 1958-10-23
NL186392B (en)
NL85714C (en)

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