Black dye mixtures of fiber-reactive azo dyes, methods for their preparation and use thereof for dyeing hydroxy-and/or carboxamido-cont
AssigneeDystar Textilfarben GmbH & Co. Deuschland KG
InventorsRon Pedemonte, Stefan Meier
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Abstract
The present invention is a dye mixture containing one or more disazo dyes conforming to the formula (1), one or more monoazo dyes conforming to the formula (2), and one or more dyes of the formulae (3) The invention further relates to a method for its preparation and a process for dyeing hydroxy- and/or carboxamido containing fiber material in which the inventive dye is applied to the material.
Claims10
A dye mixture, comprising a disazo dye of the formula (1), a monoazo dye of the formula (2), and disazo dye of the formula (3) ##STR9## Y is in each instance, independently of the others, vinyl or is ethyl which is substituted in the .beta.-position by a substitutent which is optionally eliminated by the action of an alkali, forming the vinyl group and
- M is hydrogen or an alkali metal wherein the dye of formula (1) is present in the mixture in an amount of from 65 to 95% by weight;
- the dye of the formula (2) is present in the mixture in an amount of from 1 to 30% by weight;
- the dye of the formula (3) is present in the mixture in an amount of from 1 to 25% by weight.
Dependencies are inferred from the claim text.