Azo dyes reactants screw - to - screw of the fibers, their preparation and their use

摘要

The fibre-reactive azo dyes of the formula (I) …IMAGE… where X is alkyl or alkoxy of 1 to 4 carbon atoms, carboxyl, fluorine, chlorine or bromine, n is 1, 2 or 3, m is 0 or 1, p is 0 or 1 and q is 0 or 1, and the benzene or naphthalene rings A, B and B' may in addition to SO3H groups contain further substituents, and also alkali metal salts thereof, are prepared by condensing cyanuric fluoride with an appropriate amino monoazo or disazo dye and an ortho-substituted aminobenzene; the fibre-reactive azo dyes of the formula (I) are suitable in particular for dyeing cellulose fibres.