Abstract:
Chrome-complex dyes for dyeing natural and synthetic polyamide materials, which dyes, in the form of the free acid, correspond to the formula ##STR1## wherein X, W, R.sub.1, A, q, p, B, Z, D, Y and n have the meanings defined in claim 1.
Abstract:
The invention relates to new chromiferous complex dyestuffs of the general formula: ##STR1## in which R represents a hydrogen atom or a .beta.-hydroxyethyl group, A represents a hydrogen atom, a phenyl group or a phenyl group substituted by one or more halogen atoms or alkyl groups of low molecular weight, and the nucleus B may be substituted by one or more chlorine atoms.These complexes may be used for the coloration of the natural or synthetic polyamides or leather.
Abstract:
A process for dyeing linear polyamides in the melt, in which process there are used salts from 1:2 chromium complexes of monoazo dyes and amines containing 1-18 C atoms.
Abstract:
There are described novel compounds which are chrome-complexed dyes and which include an ortho, ortho' dihydroxyazo dye moiety, an onium salt and a ligand which is a radical of an iminodiacetic acid.