Black dye mixtures of fiber-reactive azo dyes and their use for dyeing hydroxyl- and/or carboxamido-containing fiber material
AssigneeHoechst Aktiengesellschaft
InventorsAndreas Von Der Eltz, Werner Hubert Russ, Dirk Buchwald
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Abstract
A dye mixture of azo dyes having fiber-reactive groups of the vinylsulfone series, comprising one or more navy-blue disazo dyes with the bivalent 1-amino-8-hydroxy-3,6-disulfo-naphthylene coupling component, one or more red-dyeing mono azo dyes, containing a phenylamino-chlorotriazinylamino-disulfo-naphthol-coupling component and one or more orange-dyeing monoazo dyestuffs with an amino-sulfonaphthol-coupling component, which dye mixtures are suitable for dyeing hydroxy- and/or carboxamido-groups containing materials, in particular fiber materials, such as cellulose fibers, for example cotton, wool and synthetic polyamide fibers.
Claims11
A dye mixture comprising one or more disazo dyes of the formula (1), one or more monoazo dyes of the formula (3), one or more monoazo dyes of the formula (4), optionally one or two monoazo dyes of the formula (2), and, optionally, one or more monoazo dyes of the formula (5):
- ##STR9## in which formulae M is hydrogen or an alkali metal,
- R.sup.1 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.2 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.3 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.4 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.5 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.6 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.7 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.8 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.9 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- R.sup.10 is hydrogen, methyl, ethyl, methoxy or ethoxy,
- each Y, independently of the others, is vinyl, .beta.-chloroethyl, .beta.-thiosulfatoethyl or .beta.-sulfatoethyl,
- R is hydrogen, methyl, sulfo, carboxyl or a group of the formula --SO.sub.2 --Y where Y has one of the meanings given above,
- Z.sup.1 is alkanoyl of 2 to 5 carbon atoms, benzoyl, dichloro-1,3,5-triazin-6-yl or a group of the formula (a) ##STR10## in which X is chlorine or cyanamino and
- R.sup.0 is sulfo, carboxyl or a group of the formula --SO.sub.2 --Y where Y has one of the meanings given above,
- Z.sup.2 has one of the meanings of Z.sup.1, and
- the group --NH--Z.sup.2 in formula (5) is attached to the 6-sulfo-8-hydroxynaphth-2-yl in the 2 or 3 position.
Dependencies are inferred from the claim text.