High wet fast disperse dye mixtures of N-[4-(5-thiocyanato-2,4-dinitro-phenylazo)-phenyl]-amine derivatives and N-[4-(4-nitro-phenylazo)-phenyl]-amine derivatives

US11479672B2 · kind B2 · utility

Assignee

• DYSTAR COLOURS DISTRIBUTION GMBH · DE

Inventors

• Adrian Murgatroyd · Frankfurt am Main, DE
• Manfred Hoppe · Kürten, DE
• Clemens Grund · Hattersheim, DE
• Fanny Vermandel · Eppstein, DE
• Chongjun Jiao · Shanghai, CN

Key dates

• Filing date: Mar 12, 2020
• Grant date: Oct 25, 2022
• Expiry date: Mar 12, 2040

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P1/18
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention is directed to dye mixtures comprising dyes of formula (1) and dyes of formula (2), the process of the production and the use of the dye mixtures.