GB193926A - Improvements in or relating to the manufacture of artificial silk and the like - Google Patents

Improvements in or relating to the manufacture of artificial silk and the like

Info

Publication number
GB193926A
GB193926A GB31497/21A GB3149721A GB193926A GB 193926 A GB193926 A GB 193926A GB 31497/21 A GB31497/21 A GB 31497/21A GB 3149721 A GB3149721 A GB 3149721A GB 193926 A GB193926 A GB 193926A
Authority
GB
United Kingdom
Prior art keywords
temperature
cellulose
alkali
viscose
xanthogenate
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
GB31497/21A
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.)
TECHNOCHEMIA AG
Original Assignee
TECHNOCHEMIA 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 TECHNOCHEMIA AG filed Critical TECHNOCHEMIA AG
Priority to FR543887D priority Critical patent/FR543887A/en
Priority to GB31497/21A priority patent/GB193926A/en
Publication of GB193926A publication Critical patent/GB193926A/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

Relates to the preparation of concentrated solutions of viscose to be employed in the manufacture of artificial silk, &c., from cellulose that has been subjected to a preliminary treatment with mineral or organic acids as described in Specification 185,433. The formation of alkali cellulose takes place at a temperature of 5 DEG C., employing a lye of 15-18 per cent strength and an amount of alkali preferably less than that ordinarily employed; the alkali cellulose is converted into xanthogenate while using an amount of carbon disulphide equal to 20 per cent of the cellulose taken and maintaining the temperature at 15-20 DEG C. or below; and finally the xanthogenate is dissolved in dilute caustic alkali lye at a temperature of 50 DEG C., at which temperature the viscose solution is maintained up to the moment of spinning which may take place immediately or after allowing the solution to stand for some time. Viscose solutions so prepared are of light colour, of high concentration, and may be spun in sulphuric acid or other usual baths.
GB31497/21A 1921-11-24 1921-11-24 Improvements in or relating to the manufacture of artificial silk and the like Expired GB193926A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR543887D FR543887A (en) 1921-11-24 1921-11-24 Manufacturing process of viscose yarns
GB31497/21A GB193926A (en) 1921-11-24 1921-11-24 Improvements in or relating to the manufacture of artificial silk and the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR543887T 1921-11-24
GB31497/21A GB193926A (en) 1921-11-24 1921-11-24 Improvements in or relating to the manufacture of artificial silk and the like

Publications (1)

Publication Number Publication Date
GB193926A true GB193926A (en) 1923-02-26

Family

ID=10323955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31497/21A Expired GB193926A (en) 1921-11-24 1921-11-24 Improvements in or relating to the manufacture of artificial silk and the like

Country Status (2)

Country Link
FR (1) FR543887A (en)
GB (1) GB193926A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964719C (en) * 1948-10-02 1957-05-29 Hoechst Ag Process for the production of strong viscose bristles free of blisters from hardwood and straw pulp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964719C (en) * 1948-10-02 1957-05-29 Hoechst Ag Process for the production of strong viscose bristles free of blisters from hardwood and straw pulp

Also Published As

Publication number Publication date
FR543887A (en) 1922-09-11

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