发明授权
US5446193A Formazan-based reactive dyes with at least two reactive groups, and aminophenols 失效
具有至少两个反应性基团的甲an基活性染料和氨基苯酚

Formazan-based reactive dyes with at least two reactive groups, and
aminophenols
摘要:
There are described formazan dyes of the formula ##STR1## where m and n are each 1 or 2,Kat 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, andthe 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.
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