Reactive azo dyes with a coupling component from the aminonaphthalenesulfonic acid series

摘要

Reactive dyes of the formula <IMAGE> (I) where n is 1 or 2 R1 is hydrogen or hydroxyl and D is the radical of a diazo or tetrazo component with, in each case, at least one anchor radical of the formula SO2-Y where Y is vinyl or substituted ethyl, and the use thereof for dyeing or printing organic substrates having hydroxyl groups or nitrogen atoms are described.