GB618633A - Improvements in the manufacture of viscose articles, for example, artificial filaments - Google Patents

Improvements in the manufacture of viscose articles, for example, artificial filaments

Info

Publication number
GB618633A
GB618633A GB32978/46A GB3297846A GB618633A GB 618633 A GB618633 A GB 618633A GB 32978/46 A GB32978/46 A GB 32978/46A GB 3297846 A GB3297846 A GB 3297846A GB 618633 A GB618633 A GB 618633A
Authority
GB
United Kingdom
Prior art keywords
acid
filaments
water
sodium
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
GB32978/46A
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.)
Acordis UK Ltd
Original Assignee
British Celanese Ltd
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 British Celanese Ltd filed Critical British Celanese Ltd
Publication of GB618633A publication Critical patent/GB618633A/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
    • 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

Abstract

Regenerated cellulose articles, e.g. artificial filaments, made by the viscose process are purified by subjecting them while in the gel state to successive or simultaneous treatment with a dilute aqueous solution of chlorine dioxide or chlorous acid and a dilute aqueous solution of a sequestering agent such as sodium hexamethaphosphate. The filaments may first be subjected to a pre-wash with water to remove some or most of the acid carried over from the coagulating bath. Chlorous acid is preferably formed in solution by the action of an acid on an alkali metal chlorite, and the acid so employed may be added directly to the solution or may be present as residual acid in the filaments. Examples are given, in one of which, viscose yarn is purified by washing first with aqueous sodium hexamethaphosphate at 57 DEG C., then with an aqueous solution of sodium chlorite containing sulphuric acid and sodium hexametaphosphate at 57 DEG C., then with water at 57 DEG C., then with aqueous ammonium sulphide at 40 DEG C., and finally with water at 57 DEG C.
GB32978/46A 1945-11-29 1946-11-06 Improvements in the manufacture of viscose articles, for example, artificial filaments Expired GB618633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US631729A US2479605A (en) 1945-11-29 1945-11-29 Treatment of viscose cellulose filamentary materials

Publications (1)

Publication Number Publication Date
GB618633A true GB618633A (en) 1949-02-24

Family

ID=24532489

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32978/46A Expired GB618633A (en) 1945-11-29 1946-11-06 Improvements in the manufacture of viscose articles, for example, artificial filaments

Country Status (2)

Country Link
US (1) US2479605A (en)
GB (1) GB618633A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA024275B1 (en) * 2013-04-09 2016-09-30 Сумгаитский Государственный Университет Process for producing activated cellulose

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670266A (en) * 1949-12-08 1954-02-23 Du Pont Textile bleach-finish process
US3291559A (en) * 1961-10-13 1966-12-13 Olin Mathieson Process of bleaching cellulose with chlorine dioxide wherein chlorine dioxide is continuously replenished
US3419345A (en) * 1961-10-27 1968-12-31 Du Pont Neutralization of hydrophilic gel fibers of a cellulose derivative
US5266124A (en) * 1991-11-27 1993-11-30 Southern Research Institute Process for removing contaminants from polyolefins

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1633220A (en) * 1925-05-23 1927-06-21 Samuel A Heidich Process of dyeing filaments and films formed from viscore
US1646625A (en) * 1925-05-23 1927-10-25 Samuel A Neidich Manufacture of artificial silk from viscose
US1977533A (en) * 1933-12-29 1934-10-16 American Enka Corp Method of desulphurizing rayon
CH191212A (en) * 1934-01-31 1937-06-15 Chemische Werke Vorm H & E Alb Process for rendering the hardness components harmless in washing processes.
GB443498A (en) * 1934-09-05 1936-03-02 Henkel & Cie Gmbh Improvements in or relating to bleaching, washing and cleansing agents, particularlyfor use in water containing iron
US2031827A (en) * 1934-12-07 1936-02-25 Rumford Chemical Works Process of making tetraphosphates
US2140008A (en) * 1936-06-18 1938-12-13 Hall Lab Inc Tanning
US2374100A (en) * 1937-05-03 1945-04-17 Hall Lab Inc Water treatment
US2265033A (en) * 1940-03-12 1941-12-02 Ind Rayon Corp Method of purifying textile materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA024275B1 (en) * 2013-04-09 2016-09-30 Сумгаитский Государственный Университет Process for producing activated cellulose

Also Published As

Publication number Publication date
US2479605A (en) 1949-08-23

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