Process for dyeing and printing cellulose fibres

US4249275A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Herbert Hugl
• Gerhard Wolfrum · Waldershof, DE
• Henning Reel · Cologne, DE
• Werner Kunnel · Leverkusen, DE
• Robert Kuth · Cologne, DE
• Wilhelm Gohrbandt · Leverkusen, DE

Key dates

• Filing date: Apr 14, 1980
• Grant date: Feb 10, 1981
• Expiry date: Apr 14, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B29/3656
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

For dyeing and printing cellulose fibers swollen with water-miscible swelling agents or fibre blends containing these fibres, the fibres are treated with dyestuffs of the general formula ##STR1## wherein R.sub.1 represents aryl, PA1 R.sub.2 represents halogen, CN, CF.sub.3, NO.sub.2, Q.sub.1, --OQ.sub.1, --COOQ.sub.1, CONQ.sub.1 Q.sub.2 or --NHCOQ.sub.1, PA1 R.sub.3 represents H, halogen, CN, CF.sub.3, Q.sub.1 or --OQ.sub.1 and PA1 K represents the radical of a coupling component, wherein PA1 Q.sub.1 denotes alkyl or aryl and PA1 Q.sub.2 denotes hydrogen, alkyl or aralkyl, and the dyestuffs are fixed by heat treatment.