GB830851A - Process for the production of oxidation dyeings or prints - Google Patents

Process for the production of oxidation dyeings or prints

Info

Publication number
GB830851A
GB830851A GB1071/58A GB107158A GB830851A GB 830851 A GB830851 A GB 830851A GB 1071/58 A GB1071/58 A GB 1071/58A GB 107158 A GB107158 A GB 107158A GB 830851 A GB830851 A GB 830851A
Authority
GB
United Kingdom
Prior art keywords
acid
diamino
oxidation
dyeing
reacting
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
GB1071/58A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB830851A publication Critical patent/GB830851A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General 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
    • D06P1/32General 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 oxidation dyes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

Oxidation dyeings or prints are produced on textile materials of vegetable, animal or synthetic origin by applying an azomethine formed by reacting a primary aromatic amine with a heterocyclic or aromatic aldehyde, alone or in admixture with an aromatic hydroxy compound, and then applying heat in the presence of an acid-reacting or acid-yielding agent, the azomethine being split and regenerating the amine, which is then oxidized. The acid-reacting or acid-yielding agent, such as a salt or ester of an organic or inorganic acid, may be incorporated in the dyeing or printing mixture or, alternatively, the padded or printed material may be subjected to acid-steaming. Oxidizing agents, e.g. chromates, bichromates, peroxides or chlorates, and oxidation catalysts, e.g. iron, copper or vanadium salts, may be added to the dyeing or printing mixture or, alternatively, a subsequent oxidation treatment, e.g. in a chrome-acetic acid bath, may be applied. Multicoloured prints may be effected by the pre-application of a white or coloured resist. Vat dyestuffs may also be printed alongside the oxidation dyestuffs. The amine or aldehyde from which the azomethine is prepared may have solubilizing acid groups, and the azomethines employed in the examples are those prepared from 4-amino-diphenylamine, 4,41-diaminodiphenylamine, 1,4-diamino-benzene, 4-diethylamino - 1 - aminobenzene, 2,4 - diamino-toluene, 3 - amino - phenol, 2,4 - diamino-phenol, 4 - amino - 41 - methoxy - diphenylamine, 2,4,41 - triaminodiphenyl or 1,5-diaminonaphthalene and the sodium salt of benzaldehyde sulphonic acid, or from 1,3-diaminobenzene or 1,5-diaminonaphthalene and furfurol, or from 2,4-diamino-1-methylbenzene or 4-aminodiphenylamine and terephthalaldehyde. Numerous examples of dyeing and printing cotton, regenerated cellulose fibres and cellulose acetate films are given.
GB1071/58A 1957-01-16 1958-01-10 Process for the production of oxidation dyeings or prints Expired GB830851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE830851X 1957-01-16

Publications (1)

Publication Number Publication Date
GB830851A true GB830851A (en) 1960-03-23

Family

ID=6751472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1071/58A Expired GB830851A (en) 1957-01-16 1958-01-10 Process for the production of oxidation dyeings or prints

Country Status (1)

Country Link
GB (1) GB830851A (en)

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