GB481565A - Improvements in the manufacture of artificial threads - Google Patents

Improvements in the manufacture of artificial threads

Info

Publication number
GB481565A
GB481565A GB24816/36A GB2481636A GB481565A GB 481565 A GB481565 A GB 481565A GB 24816/36 A GB24816/36 A GB 24816/36A GB 2481636 A GB2481636 A GB 2481636A GB 481565 A GB481565 A GB 481565A
Authority
GB
United Kingdom
Prior art keywords
threads
roller
bath
centrifuge
hot
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
GB24816/36A
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 GB481565A publication Critical patent/GB481565A/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

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

Artificial threads of cellulose hydrate of high dry and wet tenacity and high extensibility are obtained by extruding viscose into an acid spinning bath containing sulphuric acid in a concentration of not less than 7 per cent together with sodium sulphate, and if desired a sulphate of a divalent metal such as zinc or magnesium, passing the threads directly on leaving the spinning bath but before complete regeneration, over a roller into a regenerating bath of hot water or a hot salt solution, then over a second roller rotating at a sufficiently higher speed than the first roller to stretch the threads by at least 45 per cent in the hot bath, and then leading the threads under loose tension to a winding up device. Viscose of low degree of ripeness and made from ripened or unripened alkali cellulose may be used. The threads may be reeled without tension or passed into a centrifuge where in drying they are free to shrink. They may be subjected to a chemical finishing treatment before entering the centrifuge. Specifications 335,605, [Class 2 (ii)], and 342,027 are referred to.
GB24816/36A 1936-08-08 1936-09-11 Improvements in the manufacture of artificial threads Expired GB481565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE218620X 1936-08-08

Publications (1)

Publication Number Publication Date
GB481565A true GB481565A (en) 1938-03-11

Family

ID=5831409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24816/36A Expired GB481565A (en) 1936-08-08 1936-09-11 Improvements in the manufacture of artificial threads

Country Status (4)

Country Link
BE (1) BE423040A (en)
CH (1) CH218620A (en)
FR (1) FR825391A (en)
GB (1) GB481565A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515834A (en) * 1942-11-13 1950-07-18 Du Pont Cellulose filaments and method of producing same
US2538279A (en) * 1944-11-30 1951-01-16 American Viscose Corp Manufacture of articles comprising cellulose
US3097914A (en) * 1960-09-07 1963-07-16 Courtaulds Ltd Process for the production of a ribbon filament yarn of regenerated cellulose

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515834A (en) * 1942-11-13 1950-07-18 Du Pont Cellulose filaments and method of producing same
US2538279A (en) * 1944-11-30 1951-01-16 American Viscose Corp Manufacture of articles comprising cellulose
US3097914A (en) * 1960-09-07 1963-07-16 Courtaulds Ltd Process for the production of a ribbon filament yarn of regenerated cellulose

Also Published As

Publication number Publication date
BE423040A (en)
FR825391A (en) 1938-03-02
CH218620A (en) 1941-12-31

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