Anthraquinone vat dyestuffs
AssigneeBayer Aktiengesellschaft
InventorsWalter Hohmann, Detlef-Ingo Schutze
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Abstract
Anthraquinone dyestuffs of the general formula ##STR1## wherein IN EACH OF THE TWO ANTHRAQUINONE RADICALS SUBSTITUTED BY X, one X denotes chlorine and the other denotes hydrogen and R represents hydrogen or an optionally substituted benzoylamino group, And mixtures of the dyestuffs, in which the constituents of the mixture are 6-chloroanthraquinone and 7-chloroanthraquinone derivatives are suitable as a vat dyestuff for the dyeing of cotton in strong brown color shades with excellent fastness to light and vat processing.
Claims2
Anthraquinone vat dyestuff of the formula ##STR6## wherein in each of the two anthraquinone radicals substituted by X, one X is chlorine and the other is hydrogen;
- and
- R is hydrogen;
- benzoylamino, or benzoylamino substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 alkoxy or halogen.
Dependencies are inferred from the claim text.