Black dye mixtures of fiber-reactive azo dyes, methods for their preparation and use thereof for dyeing hydroxy-and/or carboxamido-containing fiber material

US6870035B2 · kind B2 · utility

Assignee

• DyStar Textilfarben GmbH & Co. Deutschland KG · DE

Inventors

• Ronald Pedemonte · Wesley Chapel, US
• Joachim Steckelberg · Brunsbüttel, DE
• Werner Russ · Flörsheim, DE

Key dates

• Filing date: Aug 12, 2003
• Grant date: Mar 22, 2005
• Expiry date: Aug 12, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/924
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Deep black-dyeing dye mixtures comprising a disazo dye conforming to the general formula (1),