GB856916A - Improvements relating to the dyeing of cellulosic textile material with vat dyestuffs - Google Patents

Improvements relating to the dyeing of cellulosic textile material with vat dyestuffs

Info

Publication number
GB856916A
GB856916A GB10965/58A GB1096558A GB856916A GB 856916 A GB856916 A GB 856916A GB 10965/58 A GB10965/58 A GB 10965/58A GB 1096558 A GB1096558 A GB 1096558A GB 856916 A GB856916 A GB 856916A
Authority
GB
United Kingdom
Prior art keywords
dyestuff
vat
treating
alkaline
acid
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
GB10965/58A
Inventor
William Kilby
Cedric Hitchen
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.)
Standfast Dyers and Printers Ltd
Original Assignee
Standfast Dyers and Printers 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 Standfast Dyers and Printers Ltd filed Critical Standfast Dyers and Printers Ltd
Priority to GB10965/58A priority Critical patent/GB856916A/en
Publication of GB856916A publication Critical patent/GB856916A/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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/66—Natural or regenerated cellulose using reactive dyes
    • 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
    • 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
    • D06P1/38—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 reactive dyes
    • 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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/6025—Natural or regenerated cellulose using vat or sulfur dyes

Abstract

Cellulosic textile materials are dyed with vat dyestuffs by impregnating the material with an aqueous suspension of an acid leuco vat dyestuff produced by treating an aqueous suspension of the vat dyestuff with thiourea dioxide at elevated temperature and under neutral or acid conditions and, while the dyestuff in the material is in the acid leuco form, treating the material with an alkaline liquor so as to convert the dyestuff in the material to the alkaline leuco form. Fixation of the dyestuff is preferably completed by passing the material through a molten metal bath, as described for example in Specification 620,584, in which case the alkaline treating liquor, e.g. caustic soda solution or a solution of caustic soda and sodium hydrosulphite, floats on the molten metal at the entry to the bath. The acid leuco vat dyestuff suspension, prepared for example by heating an aqueous liquor containing the vat dyestuff, thiourea dioxide and disodium hydrogen orthophosphate, is preferably applied from a padding mangle. The process may also be applied in association with those described in Specifications 661,086, 663,066, 665,454 and 681,983. Examples are given.
GB10965/58A 1958-04-08 1958-04-08 Improvements relating to the dyeing of cellulosic textile material with vat dyestuffs Expired GB856916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10965/58A GB856916A (en) 1958-04-08 1958-04-08 Improvements relating to the dyeing of cellulosic textile material with vat dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10965/58A GB856916A (en) 1958-04-08 1958-04-08 Improvements relating to the dyeing of cellulosic textile material with vat dyestuffs

Publications (1)

Publication Number Publication Date
GB856916A true GB856916A (en) 1960-12-21

Family

ID=9977562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10965/58A Expired GB856916A (en) 1958-04-08 1958-04-08 Improvements relating to the dyeing of cellulosic textile material with vat dyestuffs

Country Status (1)

Country Link
GB (1) GB856916A (en)

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