GB720173A - Improvements in or relating to the production by spinning of regenerated cellulose filaments - Google Patents

Improvements in or relating to the production by spinning of regenerated cellulose filaments

Info

Publication number
GB720173A
GB720173A GB18164/51A GB1816451A GB720173A GB 720173 A GB720173 A GB 720173A GB 18164/51 A GB18164/51 A GB 18164/51A GB 1816451 A GB1816451 A GB 1816451A GB 720173 A GB720173 A GB 720173A
Authority
GB
United Kingdom
Prior art keywords
cellulose
spinning
per
bath
per cent
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
GB18164/51A
Inventor
Martin Studer
Louis Willimann
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.)
Viscosuisse SA
Original Assignee
Societe de la Viscose Suisse 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 Societe de la Viscose Suisse SA filed Critical Societe de la Viscose Suisse SA
Publication of GB720173A publication Critical patent/GB720173A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/27—Process of spinning viscose where viscose has high degree of polymerization

Abstract

Filaments, ribbons and foils are formed by spinning a viscose solution having a gamma number above 60 into a bath of low electrolyte content at room temperature, the regenerated cellulose having a degree of polymerization above 300, the filaments, &c., being stretched continuously with their formation in such a way that the speed of travel after stretching is not greater than 12 metres per minute. The gamma number is defined as the number of mols of carbon bisulphide combined per anhydro glucose radical multiplied by 100. The spinning bath comprises per litre between 10 and 40 grams of sulphuric acid and up to 100 grams of sodium sulphate with no other metal salt but optionally with the addition of lauryl pyridinium chloride or sulphate. In making the cellulose xanthate, material containing cellulose of high molecular weight is treated with caustic soda, and the ripening of the alkali cellulose is omitted. Viscose solutions having a gamma number above 60 may have a cellulose content of 4-11 per cent by weight and caustic soda of 3-12 per cent by weight. The stretching may be up to 400 per cent and may take place partially or wholly in the bath or partially or wholly in air, and may be performed between driven rolls rotating at different speeds or by friction by means of tubular rods.
GB18164/51A 1951-07-31 1951-07-31 Improvements in or relating to the production by spinning of regenerated cellulose filaments Expired GB720173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB307931X 1951-07-31

Publications (1)

Publication Number Publication Date
GB720173A true GB720173A (en) 1954-12-15

Family

ID=10313206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18164/51A Expired GB720173A (en) 1951-07-31 1951-07-31 Improvements in or relating to the production by spinning of regenerated cellulose filaments

Country Status (7)

Country Link
US (1) US2703270A (en)
BE (1) BE513218A (en)
CH (1) CH307931A (en)
DE (1) DE1083016B (en)
FR (1) FR1068692A (en)
GB (1) GB720173A (en)
NL (1) NL107330C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860480A (en) * 1956-04-18 1958-11-18 Du Pont Regenerated cellulose structures and process for producing them
US3122820A (en) * 1958-05-30 1964-03-03 Watliff Company Ltd Method of manufacturing a rotor for a dynamo-electric machine
BE632439A (en) * 1962-05-16
BE638523A (en) * 1962-11-06
FR2422889A1 (en) * 1978-04-14 1979-11-09 Commissariat Energie Atomique AUTOMATIC RELEASE REGULATION VALVE
US7108907B1 (en) 1999-11-08 2006-09-19 Asahi Kasei Kabushiki Kaisha Cellulose dope and method for producing the same
AT511638B1 (en) * 2011-06-21 2016-06-15 Glanzstoff Bohemia Sro HIGHLY CELLULOSIC FILAMENT, ITS USE AND METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE572447C (en) * 1933-03-15 Spinnstofffabrik Zehlendorf G Process for the production of rayon
DE625352C (en) * 1932-03-18 1936-02-07 Algemeene Kunstzijde Unie N V Device for stretching freshly spun artificial silk threads
DE609802C (en) * 1935-02-23 Steckborn Kunstseide A G Apparatus for the production of viscose rayon with stretching
DE744891C (en) * 1938-10-22 1944-01-28 Ig Farbenindustrie Ag Process for the production of rayon, fibers and threads from viscose
CH244571A (en) * 1943-12-16 1946-09-30 Haederli Charles Device for stretching artificial thread structures, such as single threads, ribbons or cables.
US2413123A (en) * 1944-06-29 1946-12-24 Du Pont Production of rayon
NL92810C (en) * 1949-08-25

Also Published As

Publication number Publication date
CH307931A (en) 1955-06-30
DE1083016B (en) 1960-06-09
US2703270A (en) 1955-03-01
NL107330C (en)
FR1068692A (en) 1954-06-30
BE513218A (en)

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