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GB915803A - Improvements relating to the production of regenerated cellulose filaments - Google Patents

Improvements relating to the production of regenerated cellulose filaments

Info

Publication number
GB915803A
GB915803A GB25838/58A GB2583858A GB915803A GB 915803 A GB915803 A GB 915803A GB 25838/58 A GB25838/58 A GB 25838/58A GB 2583858 A GB2583858 A GB 2583858A GB 915803 A GB915803 A GB 915803A
Authority
GB
United Kingdom
Prior art keywords
filaments
bath
cellulose
weight
viscose
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
GB25838/58A
Inventor
John Oliver Smith
David Nicholson Tyler
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 Nobel UK PLC
Original Assignee
Courtaulds PLC
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 to BE581631D priority Critical patent/BE581631A/xx
Application filed by Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB25838/58A priority patent/GB915803A/en
Priority to US830477A priority patent/US2997365A/en
Priority to DEC19556A priority patent/DE1129656B/en
Priority to FR802697A priority patent/FR1232234A/en
Publication of GB915803A publication Critical patent/GB915803A/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
    • D01F2/08—Composition of the spinning solution or the bath

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Abstract

Regenerated cellulose filaments are made by extruding viscose having a cellulose content of 4-6% and a caustic soda content approximately half that of the cellulose, the cellulose having an average degree of polymerization of at least 300 and the viscose having a salt figure of at least 10 and a ball-fall viscosity of 50-200secs., into a coagulating bath at 20 DEG -30 DEG C. containing 2,0-3,5% by weight sulphuric acid, less than 15% by weight anhydrous sodium sulphate and not more than 0,02% by weight anhydrous zinc sulphate as an impurity, limiting the length of the immersion path so that the filaments may be stretched by at least 80% of their original length on emerging from the bath, stretching the filaments by at least 80% in air immediately after they have emerged from the bath and subsequently completing the regeneration of the filaments. Preferably the salt figure of the viscose is at least 13 and the ball-fall viscosity 100-200, the coagulating bath containing 1-10% anhydrous sodium sulphate. Filaments having deniers up to 4,5 may be made using an immersion path of not more than 6 inches, and filaments having deniers up to 3 using an immersion path of not more than 3 inches. Regeneration may be effected in a warm dilute (e.g. 2% by weight) sulphuric acid bath at 60 DEG C. Filaments so made show a high ratio of wet-to-dry tenacity, low extensibility, no skin-core differentiation and low water imbibition.
GB25838/58A 1958-08-12 1958-08-12 Improvements relating to the production of regenerated cellulose filaments Expired GB915803A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE581631D BE581631A (en) 1958-08-12
GB25838/58A GB915803A (en) 1958-08-12 1958-08-12 Improvements relating to the production of regenerated cellulose filaments
US830477A US2997365A (en) 1958-08-12 1959-07-30 Production of regenerated cellulose filaments
DEC19556A DE1129656B (en) 1958-08-12 1959-08-05 Process for the production of cellulose hydrate threads or fibers by spinning viscose
FR802697A FR1232234A (en) 1958-08-12 1959-08-12 Improvements in the production of regenerated cellulose filaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25838/58A GB915803A (en) 1958-08-12 1958-08-12 Improvements relating to the production of regenerated cellulose filaments

Publications (1)

Publication Number Publication Date
GB915803A true GB915803A (en) 1963-01-16

Family

ID=10234173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25838/58A Expired GB915803A (en) 1958-08-12 1958-08-12 Improvements relating to the production of regenerated cellulose filaments

Country Status (5)

Country Link
US (1) US2997365A (en)
BE (1) BE581631A (en)
DE (1) DE1129656B (en)
FR (1) FR1232234A (en)
GB (1) GB915803A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277226A (en) * 1962-04-09 1966-10-04 Fmc Corp Viscose rayon fiber and method of making same
US3352957A (en) * 1962-11-06 1967-11-14 Chimiotex Process for spinning cellulosic fibers

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108849A (en) * 1960-10-27 1963-10-29 Mitsubishi Rayon Co Process for producing viscose regenerated cellulose fibers
NL293298A (en) * 1962-05-28
GB1021537A (en) * 1963-03-07 1966-03-02 Teijin Ltd Method of producing viscose rayon staple and a spinning apparatus for use in the method
US3494996A (en) * 1965-07-20 1970-02-10 Itt Rayonier Inc Method for producing high tenacity rayon
US4402899A (en) * 1981-07-13 1983-09-06 International Telephone And Telegraph Corporation Zinc-free preparation of rayon fibers
US4405549A (en) * 1981-07-13 1983-09-20 International Telephone And Telegraph Corporation Zinc-free preparation of rayon fibers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL73733C (en) * 1948-11-23
NL96477C (en) * 1951-12-07
US2775505A (en) * 1952-06-05 1956-12-25 American Viscose Corp Spinning regenerated cellulose filaments

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277226A (en) * 1962-04-09 1966-10-04 Fmc Corp Viscose rayon fiber and method of making same
US3352957A (en) * 1962-11-06 1967-11-14 Chimiotex Process for spinning cellulosic fibers

Also Published As

Publication number Publication date
DE1129656B (en) 1962-05-17
BE581631A (en) 1900-01-01
US2997365A (en) 1961-08-22
FR1232234A (en) 1960-10-06

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