GB1035244A - High tenacity viscose rayon filaments - Google Patents

High tenacity viscose rayon filaments

Info

Publication number
GB1035244A
GB1035244A GB12735/63A GB1273563A GB1035244A GB 1035244 A GB1035244 A GB 1035244A GB 12735/63 A GB12735/63 A GB 12735/63A GB 1273563 A GB1273563 A GB 1273563A GB 1035244 A GB1035244 A GB 1035244A
Authority
GB
United Kingdom
Prior art keywords
weight
filaments
viscose
formaldehyde
bath
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
GB12735/63A
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.)
Courtaulds North America Inc
Original Assignee
Courtaulds North America Inc
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 Courtaulds North America Inc filed Critical Courtaulds North America Inc
Publication of GB1035244A publication Critical patent/GB1035244A/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
    • 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
    • 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

Abstract

1,035,244. Viscose spinning. COURTAULDS NORTH AMERICA Inc. April 1, 1963 [April 2, 1962], No. 12735/63. Heading B5B. High tenacity viscose rayon filaments are made by extruding viscose into a coagulating bath containing sulphuric acid and sodium sulphate in the presence of 0À5-2À0% by weight of formaldehyde to form filaments, withdrawing the filaments from the bath when they are no more than 20% regenerated, and subsequently stretching the filaments in a hot aqueous secondary bath and maintaining the acid concentration in the secondary bath at less than 0À5% by weight of sulphuric acid. The viscose may be made from pulp where cellulose has a degree of polymerization of 300-600, preferably over 600. Preferably the alkali cellulose is not aged, and the viscose spun without substantial ageing. It may contain 2-7% cellulose and 2-9% sodium hydroxide, and may have a sodium chloride salt figure of 12 to 23, a gamma number of not less than 60, normally 75 to 90, or higher, and a ball fall viscosity of 30-400 secs. Formaldehyde may be added to the viscose. The coagulating bath may contain 3-9% by weight sulphuric acid, 4-18% by weight sodium sulphate, (Na 2 SO 4 ) zinc sulphate being absent or below 0À2% of the anhydrous salt, and preferably contains 0À5- 1À0% by weight of formaldehyde. The coagulating bath temperature may be 20-35‹ C. The filaments are then passed through the aqueous secondary bath containing not more than 0À5% by weight sulphuric acid, suitably at 60‹-80‹ C., and suitably containing less than 1À0% by weight of formaldehyde, and may be stretched 150À350%. In examples, filaments of 1À20-1À55 denier so made have tenacities exceeding 5 g/denier.
GB12735/63A 1962-04-02 1963-04-01 High tenacity viscose rayon filaments Expired GB1035244A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US184510A US3109698A (en) 1962-04-02 1962-04-02 Method for making high tenacity regenerated cellulose staple fiber

Publications (1)

Publication Number Publication Date
GB1035244A true GB1035244A (en) 1966-07-06

Family

ID=22677174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12735/63A Expired GB1035244A (en) 1962-04-02 1963-04-01 High tenacity viscose rayon filaments

Country Status (2)

Country Link
US (1) US3109698A (en)
GB (1) GB1035244A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1027153A (en) * 1962-02-27 1966-04-27 Courtaulds North America Inc Improvements in and relating to the manufacture of regenerated cellulose fibres fromviscose
NL293298A (en) * 1962-05-28
GB1080671A (en) * 1963-09-10 1967-08-23 Mitsubishi Rayon Co Highly crimped regenerated cellulose fibres and process for producing the same
DE1259499B (en) * 1964-07-31 1968-01-25 Glanzstoff Ag Process for the production of regenerated cellulose staple fibers
DE1494725A1 (en) * 1965-08-19 1969-09-25 Phrix Werke Ag Method and device for the production of threads and fibers from regenerated cellulose
US4215212A (en) * 1979-04-09 1980-07-29 Akzona Incorporated Regenerated cellulose containing cross linked sodium lignate or sodium lignosulfonate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941009C (en) * 1943-12-17 1956-03-29 Onderzoekings Inst Res Process for the production of artificial threads from viscose

Also Published As

Publication number Publication date
US3109698A (en) 1963-11-05

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