Dye mixtures comprising water-soluble fiber-reactive azo dyes, preparation thereof and use thereof
AssigneeDyStar Textilfarben GmbH & Co. Deutschland KG
InventorsBengt-Thomas Gröbel, Christian Schumacher, Gerhard Lippert, Mieke Schaffeld, Karl Krieger, Dierk Röhrig
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Abstract
Dye mixtures comprising water-soluble fiber-reactive azo dyes, preparation thereof and use thereof Described are dye mixtures comprising yellow dyes of the formulae indicated and defined in claim 1, which are useful for dyeing hydroxyl- and/or carboxamido-containing material, especially fiber material, such as cellulose fibers, for example cotton and filament viscose, and wool and also synthetic polyamide fibers.
Claims15
A dye mixture comprising one or more dyes selected from the group of the dyes of the hereinbelow indicated and defined general formula (1) and one or more dyes selected from the group of the dyes of the hereinbelow indicated and defined general formula (2) in a molar ratio of the dye or dyes (1) to the dye or dyes (2) of 75:25 to 25:75
- where:
- M is hydrogen or an alkali metal;
- Y1 is vinyl or is ethyl which is substituted in the β-position by an alkali-eliminable substituent;
- Y2 has one of the meanings of Y1;
- R1 is hydrogen, chlorine, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, carboxyl or sulfo;
- R2 is hydrogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms;
- R3 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or sulfo;
- R is amino or alkyl of 1 to 6 carbon atoms optionally substituted;
- R4 is hydrogen, chlorine, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or sulfo;
- R5 is hydrogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms;
- R6 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or sulfo;
- n is 1;
- R7 is methyl or carboxyl;
- R8 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or chlorine;
- R9 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or chlorine;
- m is zero, 1 or 2 (when m is zero, this group is hydrogen).
Dependencies are inferred from the claim text.