US 2025/0145831 A1 · ISOMERIC MIXTURE OF REACTIVE DYES AND THEIR USE FOR THE DYEING OR PRINTING OF TEXTILE FIBRE MATERIALS

Abstract

The present invention relates to the field of isomeric mixture of reactive dyes that are suitable for the dyeing or printing of nitrogen-containing or hydroxy-group-containing fibre materials and yield on such materials dyeings or prints having a good build-up behaviour, a high fixation rate, good washing off properties of the unfixed dyes and good all-round fastness properties, as well as a good stability to various dyeing parameters such as a good bath stability. Furthermore, the present invention relates to a process for dyeing or printing of nitrogen-containing or hydroxy-group-containing fibre materials, wherein the isomeric mixture of reactive dyes according to the invention is used. The isometric mixture of the present invention comprises at least an isomer of formula (Ia) and an isomer of formula (Ib).

Claims15

Dependent claims

An isomeric mixture of at least one reactive dye of formula (I):

wherein,
R1 is hydrogen or C1-C4alkyl,
R2 is hydrogen, C1-C4 alkyl, C1-C4 alkoxy, sulfo, carboxy or halogen,
Z is a fibre-reactive radical of formula —SO2—CH═CH2, —SO2—(CH2)2—Y, —NH—(CH2)2—O—(CH2)2—SO2—CH═CH2, —NH—(CH2)2—O—(CH2)2—SO2—(CH2)2—Y, —NH—(CH2)2—O—(CH2)3—SO2—CH═CH2, —NH—(CH2)2—O—(CH2)3—SO2—(CH2)2—Y, —NHCO—(CH2)3—SO2—CH═CH2 or —NHCO—(CH2)3—SO2—(CH2)2—Y wherein Y is a group removable under alkaline conditions,
X is halogen, and
M is hydrogen, an organic salt, an alkali metal or one equivalent of an alkaline earth metal.

3 more elements

Dependencies are inferred from the claim text.

Isomeric mixture of reactive dyes and their use for the dyeing or printing of textile fibre materials

Life of this patent

Isomeric mixture of reactive dyes and their use for the dyeing or printing of textile fibre materials

Life of this patent

Abstract

Claims15