Mixtures of reactive dyes and their use

US5849887A · kind A · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Urs Lehmann · Basel, CH
• Rolf Deitz · Basel, CH
• Hans Reichert · Rheinfelden (Baden), DE
• Athanassios Tzikas · Pratteln, CH

Key dates

• Filing date: Mar 30, 1998
• Grant date: Dec 15, 1998
• Expiry date: Mar 30, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0059
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dye mixtures comprising at least one reactive dye of formula ##STR1## together with at least one reactive dye of formula ##STR2## give dyeings having good fastness properties on nitrogen-containing or hydroxyl group-containing fiber materials.