Process for the dyeing and printing of hydrophobic synthetic organic fiber materials with water-insoluble azo dyestuffs

US4293306A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Ernst Hoyer · Frankfurt am Main, DE
• Willi Steckelberg · Hofheim, DE
• Walter Deucker · Bad Soden am Taunus, DE
• Rudolf Schickfluss

Key dates

• Filing date: Feb 6, 1980
• Grant date: Oct 6, 1981
• Expiry date: Feb 6, 2000

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P5/006
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for the dyeing or printing of a hydrophobic organic fibrous material containing or consisting of polyester, wherein PA1 (a) the fibrous material is dyed (.alpha.) from an aqueous dispersion with a dyestuff of the formula (1) indicated below at a pH value between 2 and 9 and at a temperature above 100.degree. C. or at about 100.degree. C. in the presence of a carrier, or (.beta.) by impregnating it with an aqueous dispersion of a dyestuff of the formula (1), said dispersion having a pH value between 2 and 9, and subsequently exposing the fibrous material so treated to a short heat treatment between about 180.degree. and 210.degree. C., or PA1 (b) the fibrous material is printed with a dyestuff of the formula (1) by the transfer printing method, the dyestuff used in methods (a) and (b) being of the formula (1) ##STR1## in which X represents alkyl of 1 to 4 carbon atoms, phenyl, lower alkyl-phenyl, lower alkoxy-phenyl, nitro-phenyl, chloro-phenyl or bromo-phenyl, and D represents phenyl, lower alkyl-phenyl, lower alkoxy-phenylene, nitro-phenylene, chloro-phenylene, benzoyl-phenylene, phenyl-phenylene, phenoxy-phenylene, lower alkyl-sulfonyl-phenylene, aminocarbonyl-phenylene…