Importance

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Abstract

Chromium complex dyes of the formula ##STR1## wherein represents a halogen atom, a C.sub.1 -C.sub.5 -alkyl group, a C.sub.1 -C.sub.2 -alkoxy group, a nitro group, a C.sub.2 -C.sub.3 -alkanoylamino or C.sub.2 -C.sub.3 -alkoxycarbonylamino group, Me.sym. represents a cation, and Ar represents the radical of an aromatic or heterocyclic diazo component which carries one to three SO.sub.3 H and/or COOH groups, preferably one to three SO.sub.3 H groups or one SO.sub.3 H and one COOH group, and is optionally further substituted by halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.2 -alkoxy or nitro. These dyes are suitable for dyeing and printing nitrogen-containing material such as wool, silk, synthetic polyamide and especially leather.

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First Claim