Formazan-based reactive dyes with at least two reactive groups, and aminophenols
AssigneeBASF SE
InventorsClaus Marschner, Manfred Patsch
Life of this patent
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Abstract
There are described formazan dyes of the formula ##STR1## where m and n are each 1 or 2, Kat.sup..sym. is the equivalent of a cation, Me is copper or nickel, X is oxygen or a radical of the formula CO--O or SO.sub.2 --O, Y is vinyl or a radical of the formula C.sub.2 H.sub.4 --Q, wherein Q is a group that is detachable under alkaline reaction conditions, E is a fiber-reactive radical, the rings A and B may be substituted and benzofused, and the ring C may be substituted, the use thereof for dyeing or printing hydroxyl- or nitrogen-containing organic substrates, novel aminophenols and a process for preparing same.
Claims7
A formazan dye of the formula I ##STR113## where m and n are each independently of one another 1 or 2,
- Kat.sup..sym. is the equivalent of a cation,
- Me is copper or nickel,
- X is oxygen or a radical of the formula CO--O or SO.sub.2 --O,
- Y is vinyl or a radical of the formula C.sub.2 H.sub.4 --Q, wherein Q is a group that is detachable under alkaline reaction conditions,
- E is a heterocyclic fiber-reactive radical selected from the group consisting of 1,3,5-triazine, quinoxaline, phthalazine, pyridiazone and 2-alkylsulfonylbenzothiazole or a fiber-reactive radical of the formula L-W, wherein L is a bridge member and W is a fiber-reactive radical of the aliphatic series,
- the rings A and B are each substituted or unsubstituted and may be benzofused, and
- the ring C is substituted or unsubstituted.
Dependencies are inferred from the claim text.