Dye mixtures of fiber-reactive azo dyes, their preparation and use

US7455699B2 · kind B2 · utility

Assignee

• DyStar Textilfarben GmbH & Co. Deutschland KG · DE

Inventors

• Joachim Eichhorn · Frankfurt, DE
• Werner Russ · Flörsheim, DE
• Stefan Meier · Neubiberg, DE
• Uwe Mrotzeck · Kelkheim, DE

Key dates

• Filing date: Mar 18, 2003
• Grant date: Nov 25, 2008
• Expiry date: May 19, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0047
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Reactive dye mixtures comprising one or more dyes of the general formula (I),one or more dyes of the general formula (II)and optionally one or more dyes of the general formula (III)where D1, D2, D3, D4, D5, R0, R*, R**, T, b, f, v, and M are as defined in claim 1, the dyes of the general formulae (I)-(III) containing at least one fiber-reactive group of the formula —SO2-Z or -Z2, are prepared and used for dyeing hydroxyl- and/or carboxamido-containing fiber material.