GB787343A - Process for dyeing cellulosic textile materials with vat dyestuffs - Google Patents

Process for dyeing cellulosic textile materials with vat dyestuffs

Info

Publication number
GB787343A
GB787343A GB29955A GB29955A GB787343A GB 787343 A GB787343 A GB 787343A GB 29955 A GB29955 A GB 29955A GB 29955 A GB29955 A GB 29955A GB 787343 A GB787343 A GB 787343A
Authority
GB
United Kingdom
Prior art keywords
anthraquinone
textile
vat dyestuffs
reducing
dyestuff
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
GB29955A
Inventor
Richard William Speke
William James Marshall
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB29955A priority Critical patent/GB787343A/en
Publication of GB787343A publication Critical patent/GB787343A/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
    • D06P1/224—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 using vat dyes in unreduced pigment state
    • 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
    • D06P1/221—Reducing systems; Reducing catalysts

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coloring (AREA)

Abstract

In the dyeing of cellulosic textiles with vat dyestuffs by padding the textile with an aqueous dispersion of the oxidized form of the dyestuff, reducing the dyestuff to its leuco form in situ on the textile with an alkaline solution of a reducing agent, e.g. sodium hydrosulphite, and subsequently re-oxidizing the leuco compound, improved results are obtained by effecting the reduction in the presence of anthraquinone-2-sulphonic acid or a salt thereof. The anthraquinone-2-sulphonic acid may be added to the pigment padding liquor and/or to the reducing liquor or it may be applied to the textile immediately prior to the reduction step. The process is applicable to continuous or discontinuous methods and the molten-metal technique of Specification 620,584 may be employed. Vat dyestuffs of the anthraquinone and related polynuclear quinones, indigoid and thioindigoid series may be used. Numerous examples are given.
GB29955A 1955-01-05 1955-01-05 Process for dyeing cellulosic textile materials with vat dyestuffs Expired GB787343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29955A GB787343A (en) 1955-01-05 1955-01-05 Process for dyeing cellulosic textile materials with vat dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29955A GB787343A (en) 1955-01-05 1955-01-05 Process for dyeing cellulosic textile materials with vat dyestuffs

Publications (1)

Publication Number Publication Date
GB787343A true GB787343A (en) 1957-12-04

Family

ID=9701923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29955A Expired GB787343A (en) 1955-01-05 1955-01-05 Process for dyeing cellulosic textile materials with vat dyestuffs

Country Status (1)

Country Link
GB (1) GB787343A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512917A (en) * 1965-09-28 1970-05-19 Cassella Farbwerke Mainkur Ag Vat dyestuff preparations of improved vatting properties
DE2003363A1 (en) 1969-01-30 1970-08-06 Ciba Geigy Process for dyeing and printing textiles with Kuepen- and reactive dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512917A (en) * 1965-09-28 1970-05-19 Cassella Farbwerke Mainkur Ag Vat dyestuff preparations of improved vatting properties
DE2003363A1 (en) 1969-01-30 1970-08-06 Ciba Geigy Process for dyeing and printing textiles with Kuepen- and reactive dyes

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