GB1121074A - Process for the production of staple fibres of viscose rayon - Google Patents

Process for the production of staple fibres of viscose rayon

Info

Publication number
GB1121074A
GB1121074A GB32738/65A GB3273865A GB1121074A GB 1121074 A GB1121074 A GB 1121074A GB 32738/65 A GB32738/65 A GB 32738/65A GB 3273865 A GB3273865 A GB 3273865A GB 1121074 A GB1121074 A GB 1121074A
Authority
GB
United Kingdom
Prior art keywords
bath
weight
staple fibres
filaments
fibres
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
GB32738/65A
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.)
Glanzstoff AG
Original Assignee
Glanzstoff AG
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 Glanzstoff AG filed Critical Glanzstoff AG
Publication of GB1121074A publication Critical patent/GB1121074A/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
    • D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
    • 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
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins

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

1,121,074. Producing viscose rayon staple fibres. GLANZSTOFF A.G. 30 July, 1965 [31 July, 1964], No. 32738/65. Heading B5B. Viscose rayon staple fibres are produced by spinning viscose having a gamma number of 80 into a first stage aqueous coagulating bath maintained at 31‹ C., containing 8 to 10.8% by weight of sodium sulphate, 6À5 to 7% by weight of sulphuric acid and 0À78 to 0À83% by weight of formaldehyde, but no zinc salt, withdrawing the filaments thereby formed from the bath, stretching them in air to an elongation of 70%, passing them through a second stage aqueous bath containing 2% by weight of sulphuric acid and 1 to 10% by weight of sodium sulphate, the bath being maintained at 78 to 85‹ C. and the filaments being further stretched in this bath to such en extent that the overall increase in length of the filaments is 280 to 300%, thereafter cutting the filaments to staple fibre length to produce staple fibres having a gamma number between 35 and 47 (preferably between 40 and 47) and immersing the staple fibres for one minute in a third stage aqueous bath containing 0.1 to 6.0% of sulphuric acid and 1 to 10% sodium sulphate, the bath being maintained at a temperature from 90‹ C. up to its boiling point. The fibres are thereby completely regenerated. The staple fibres may be formed into a fleece and the fleece washed and treated with dilute sodium hydroxide solution.
GB32738/65A 1964-07-31 1965-07-30 Process for the production of staple fibres of viscose rayon Expired GB1121074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV26491A DE1259499B (en) 1964-07-31 1964-07-31 Process for the production of regenerated cellulose staple fibers

Publications (1)

Publication Number Publication Date
GB1121074A true GB1121074A (en) 1968-07-24

Family

ID=7582694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32738/65A Expired GB1121074A (en) 1964-07-31 1965-07-30 Process for the production of staple fibres of viscose rayon

Country Status (7)

Country Link
US (1) US3420814A (en)
AT (1) AT256326B (en)
BE (1) BE665052A (en)
CH (1) CH443556A (en)
DE (1) DE1259499B (en)
GB (1) GB1121074A (en)
NL (1) NL6509534A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT232638B (en) * 1960-04-22 1964-03-25 Chimiotex Process for the production of structures made of regenerated cellulose, such as threads, fibers, cords, foils or the like.
US3077374A (en) * 1960-06-06 1963-02-12 American Viscose Corp Method for producing crimped regenerated cellulosic fibers
US3109698A (en) * 1962-04-02 1963-11-05 Courtaulds North America Inc Method for making high tenacity regenerated cellulose staple fiber
BE632439A (en) * 1962-05-16
BE638523A (en) * 1962-11-06

Also Published As

Publication number Publication date
NL6509534A (en) 1966-02-01
CH443556A (en) 1967-09-15
BE665052A (en) 1965-10-01
AT256326B (en) 1967-08-10
US3420814A (en) 1969-01-07
DE1259499B (en) 1968-01-25

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