GB181902A - Improvements in the manufacture and production of coloured threads, filaments, strips, or films, of cellulose - Google Patents

Improvements in the manufacture and production of coloured threads, filaments, strips, or films, of cellulose

Info

Publication number
GB181902A
GB181902A GB1177021A GB1177021A GB181902A GB 181902 A GB181902 A GB 181902A GB 1177021 A GB1177021 A GB 1177021A GB 1177021 A GB1177021 A GB 1177021A GB 181902 A GB181902 A GB 181902A
Authority
GB
United Kingdom
Prior art keywords
viscose
cellulose
mixture
leuco
filaments
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
GB1177021A
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.)
LILIAN JANE WILSON
Akzo Nobel UK PLC
Original Assignee
LILIAN JANE WILSON
Courtaulds PLC
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 LILIAN JANE WILSON, Courtaulds PLC filed Critical LILIAN JANE WILSON
Priority to GB1177021A priority Critical patent/GB181902A/en
Publication of GB181902A publication Critical patent/GB181902A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/22—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using vat dyestuffs including indigo

Abstract

Threads, filaments, strips, or films of cellulose are dyed with vat or sulphuretted dyes by incorporating with viscose the leuco compound of the dyestuff. The mixture of viscose and leuco colouring matter is preferably obtained by first bringing the dyestuff into solution by an alkaline reducing agent in the usual manner and then mixing with viscose, either as such, or more advantageously during its production. According to examples Thional Black O.G., Duranthrene Blue C.C., and indigo are dissolved in caustic soda and sodium hydrosulphite and then mixed with cellulose xanthate. The mixture is spun in the usual way and during the further treatment of the thread, particularly the washing and drying, the oxidation of the leuco compound proceeds.ALSO:Threads, filaments, strips, or films of cellulose are dyed with vat or sulphuretted dyes by incorporating with viscose the leuco compound of the dye. The mixture of viscose and leuco colouring-matter is preferably obtained by first bringing the dyestuff into solution and then mixing with the viscose, either as such, or during its production. With a sulphur colouring-matter sodium sulphide may be used in small quantities for this purpose, but it is preferred to replace it by sodium hydrosulphite. The use of large quantities of sodium sulphide is to be avoided. According to examples Thional Black O.G., Duranthrene Blue C.C., and indigo are dissolved in caustic soda and sodium hydrosulphite and then mixed with cellulose xanthate. The mixture is spun in the usual way, and during the further treatment of the thread, particularly the washing and drying, the oxidation of the leuco compound proceeds.
GB1177021A 1921-04-23 1921-04-23 Improvements in the manufacture and production of coloured threads, filaments, strips, or films, of cellulose Expired GB181902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1177021A GB181902A (en) 1921-04-23 1921-04-23 Improvements in the manufacture and production of coloured threads, filaments, strips, or films, of cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1177021A GB181902A (en) 1921-04-23 1921-04-23 Improvements in the manufacture and production of coloured threads, filaments, strips, or films, of cellulose

Publications (1)

Publication Number Publication Date
GB181902A true GB181902A (en) 1922-06-29

Family

ID=9992376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1177021A Expired GB181902A (en) 1921-04-23 1921-04-23 Improvements in the manufacture and production of coloured threads, filaments, strips, or films, of cellulose

Country Status (1)

Country Link
GB (1) GB181902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418605A (en) * 1944-12-15 1947-04-08 Polaroid Corp Filter transparent to infrared radiation and opaque to visible light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418605A (en) * 1944-12-15 1947-04-08 Polaroid Corp Filter transparent to infrared radiation and opaque to visible light

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