GB370943A - Improvements relating to the manufacture of artificial silk - Google Patents

Improvements relating to the manufacture of artificial silk

Info

Publication number
GB370943A
GB370943A GB119631A GB119631A GB370943A GB 370943 A GB370943 A GB 370943A GB 119631 A GB119631 A GB 119631A GB 119631 A GB119631 A GB 119631A GB 370943 A GB370943 A GB 370943A
Authority
GB
United Kingdom
Prior art keywords
thread
period
coagulation
liquid
stretching
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
GB119631A
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.)
CHATILLON ITALIANA FIBRE
Original Assignee
CHATILLON ITALIANA FIBRE
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 CHATILLON ITALIANA FIBRE filed Critical CHATILLON ITALIANA FIBRE
Priority to GB119631A priority Critical patent/GB370943A/en
Priority to FR727296D priority patent/FR727296A/en
Publication of GB370943A publication Critical patent/GB370943A/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

Abstract

Artificial filaments of high dry and wet tenacity and elongation are obtained by extruding viscose into a heated coagulation bath containing dilute sulphuric acid, removing the thread from the bath after a very short time, allowing a short time for partial setting, and subjecting the thread to a gradually increasing tension while the coagulation is being completed by the liquid adhering to the thread, or by another coagulating medium. The strength of the sulphuric acid should be between 8 and 20 per cent and there may be added salts such as sodium, zinc, and magnesium sulphate, and other substances such as glucose, dextrine, and gums. The temperature of the bath should be between 55 DEG C. and 80 DEG C. The period of partial setting is 5-30 times the period of immersion, and the stretching period is 20-70 times the period of immersion. It is preferable to pass the thread over a final stretching drum which has a speed somewhat greater than that of the winding device. Improved results are obtained when unripened viscose prepared from unripened alkali cellulose is employed. When coagulation is completed by a second liquid, one or more of the stretching discs may be immersed therein, or the liquid may be sprayed upon the thread.
GB119631A 1931-01-13 1931-01-13 Improvements relating to the manufacture of artificial silk Expired GB370943A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB119631A GB370943A (en) 1931-01-13 1931-01-13 Improvements relating to the manufacture of artificial silk
FR727296D FR727296A (en) 1931-01-13 1931-12-01 Improvements in the manufacture of artificial silk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB119631A GB370943A (en) 1931-01-13 1931-01-13 Improvements relating to the manufacture of artificial silk

Publications (1)

Publication Number Publication Date
GB370943A true GB370943A (en) 1932-04-13

Family

ID=9717834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB119631A Expired GB370943A (en) 1931-01-13 1931-01-13 Improvements relating to the manufacture of artificial silk

Country Status (2)

Country Link
FR (1) FR727296A (en)
GB (1) GB370943A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763247C (en) * 1938-05-12 1951-05-17 Glanzstoff Ag Process for the production of rayon threads from rayon

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL45041C (en) * 1935-11-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763247C (en) * 1938-05-12 1951-05-17 Glanzstoff Ag Process for the production of rayon threads from rayon

Also Published As

Publication number Publication date
FR727296A (en) 1932-06-15

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