GB287492A - Improvements relating to the production of viscose - Google Patents

Improvements relating to the production of viscose

Info

Publication number
GB287492A
GB287492A GB8612/28A GB861228A GB287492A GB 287492 A GB287492 A GB 287492A GB 8612/28 A GB8612/28 A GB 8612/28A GB 861228 A GB861228 A GB 861228A GB 287492 A GB287492 A GB 287492A
Authority
GB
United Kingdom
Prior art keywords
alcohol
treatment
xanthate
cellulose
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
GB8612/28A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB287492A publication Critical patent/GB287492A/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

287,492. I. G. Farbenindustrie Akt.- Ges. March 21, 1927, [Convention date]. Cellulose xanthates, and processes for making filaments from.-Cellulose xanthate is purified by treating it with an aqueous alcohol, particularly methanol containing 70-80 per cent by volume of alcohol, the percentage of alcohol being calculated as anhydrous alcohol and having regard to the water content of the xanthate. The treatment is effected as rapidly as possible at a low temperature and then the liquid is quickly separated by pressing. The press cake, after being quickly broken up if desired, but without being dried, is at once dissolved to form viscose suitable for spinning artificial silk. Alternatively, the treatment may bo carried out in two stages, the strength of the alcohol in the first stage conforming with the above limitation. The aqueous alcohol may be recovered after use and returned to the process. Specification 8023/08 is referred to.
GB8612/28A 1927-03-21 1928-03-21 Improvements relating to the production of viscose Expired GB287492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE287492X 1927-03-21

Publications (1)

Publication Number Publication Date
GB287492A true GB287492A (en) 1929-05-23

Family

ID=6059311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8612/28A Expired GB287492A (en) 1927-03-21 1928-03-21 Improvements relating to the production of viscose

Country Status (3)

Country Link
BE (1) BE349580A (en)
FR (1) FR651060A (en)
GB (1) GB287492A (en)

Also Published As

Publication number Publication date
FR651060A (en) 1929-02-14
BE349580A (en)

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