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GB445474A - Manufacture of water-insoluble azo-dyestuffs on wool materials - Google Patents

Manufacture of water-insoluble azo-dyestuffs on wool materials

Info

Publication number
GB445474A
GB445474A GB28883/34A GB2888334A GB445474A GB 445474 A GB445474 A GB 445474A GB 28883/34 A GB28883/34 A GB 28883/34A GB 2888334 A GB2888334 A GB 2888334A GB 445474 A GB445474 A GB 445474A
Authority
GB
United Kingdom
Prior art keywords
wool
water
electrolytes
methyl
muslin
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
GB28883/34A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB445474A publication Critical patent/GB445474A/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
    • D06P3/00Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02Material containing basic nitrogen
    • D06P3/04Material containing basic nitrogen containing amide groups
    • D06P3/14Wool
    • D06P3/22Preparing azo dyes on the fibre

Landscapes

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

Abstract

Water-insoluble azo dyes are produced on wool or mixtures of wool with cellulose fibres without the aid of a mordant by treating the material with hot water, containing if desired, a non-mordanting electrolyte, particularly a thiocyanate, grounding with an alkaline solution of an o-hydroxyaryl carboxylic acid arylide and developing with a diazo compound. In an example, wool muslin is treated with boiling water, dried, grounded with an aqueous solution containing 1 - (2<1> : 3<1> - hydroxynaphthoylamino) - 2 - methyl - 4 - chlorobenzene, alcohol, caustic soda, sulphite waste liquor and the oleic acid ester of methyltaurine, during which process common salt is added, and developed with a solution of diazotized 4-chloro-2-methyl-1-aminobenzene containing acetic acid and the reaction product of ethylene oxide upon octodecylalcohol. Dyeings are obtained of greater strength of colour than those formed on non-boiled muslin. Potassium thiocyanate and calcium hydroxide are specified as electrolytes which may be added to the pre-treating bath. The Specification as open to inspection under Sect. 91 comprises the use of electrolytes in general in the pre-treating bath. This subject-matter does not appear in the Specification as accepted.
GB28883/34A 1933-10-10 1934-10-09 Manufacture of water-insoluble azo-dyestuffs on wool materials Expired GB445474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE445474X 1933-10-10

Publications (1)

Publication Number Publication Date
GB445474A true GB445474A (en) 1936-04-09

Family

ID=6537764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28883/34A Expired GB445474A (en) 1933-10-10 1934-10-09 Manufacture of water-insoluble azo-dyestuffs on wool materials

Country Status (1)

Country Link
GB (1) GB445474A (en)

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