Dye mixture containing at least four diazo dyes having the same color with a diaminopyridine coupling component
AssigneeBASF SE
InventorsGunther Lamm, Hermann Loeffler, Helmut Reichelt
Life of this patent
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Abstract
Dye mixtures comprising at least 4 dyes of the same color having the formula ##STR1## where D is the radical of a diazo component of the aminoanthraquinone, aniline, aminothiophene, aminothiazole, aminoisothiazole, aminothiadiazole or aminobenzisothiazole series, one of X1 and X2 is substituted or unsubstituted phenylamino while the other is a radical of the formula NH--L--O--R, where L is substited or unsubstituted C.sub.2 -C.sub.8 -alkylene, and R is hydrogen, C.sub.1 -C.sub.4 or C.sub.1 -C.sub.3 -alkanoyl, are useful for dyeing or printing textile materials.
Claims14
A dye mixture, comprising at least four dyes of the same color having the formulae Ia and Ib:
- wherein:
- D is a radical of a diazo component of aminoanthraquinone, aniline, aminothiophene, aminothiazole, aminoisothazole, aminothiodiazole or aminobenzoisothiazole;
- L is C.sub.2 -C.sub.8 -alkylene, which is uninterrupted or interrupted by 1 or 2 oxygen atoms in an ether group;
- R.sup.1 and R.sup.2 are independently of each other hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or halogen;
- R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.3 -alkanoyl;
- and
- R.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl.
Dependencies are inferred from the claim text.