Patent · US Expired

Dye mixtures of fiber-reactive azo dyes and use thereof for dyeing material containing hydroxy- and/or carboxamido groups

US6051037A · kind A · utility

0Cited by

4References

15Claims

0Family size

Assignee

DyStar Textilfarben GmbH & Co. Deutschland KG · DE

Inventors

Ron Pedemonte · Eppstein, DE
Werner Russ · Flörsheim, DE
Christian Schumacher · Frankfurt am Main, DE

Key dates

Filing date	Apr 21, 1999
Grant date	Apr 18, 2000
Priority date	—
Expiry date	Apr 21, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S8/924
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention concerns dye mixtures of fiber-reactive azo dyes, suitable for dyeing hydroxy- and/or carboxamido-containing material, such as cellulose fibers, like cotton, or wool and nylon, bright orange to red shades. The mixtures of the invention comprise one or more monoazo dyestuffs corresponding to the general formula (1) and one or more monoazo dyestuffs corresponding to the formula (2) wherein the general formulae (1) and (2) are defined as given in claim 1, a method for their preparation and a process for dyeing hydroxy- and/or carboxamido containing fiber material in which a inventive dye is applied to the material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.