staining reagents towards the fiber, process of preparation and their application

摘要

Fibre-reactive dyes of the formula (1), wherein each of R1 and R2 independently is a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, each of X1 and X2 independently is a halogen atom, D1 is the radical of an anthraquinone dye of the formula (2) , wherein the benzene ring A and the anthraquinone nucleus can contain further substituents, or is the radical of a phthalocyanine dye, and D2 is the radical of a monoazo dye of the formula (3), which contains sulpho groups, wherein K is the radical of the benzene, naphthalene, triazole or stilbene series, or the radical of a coupling component which is bound in the adjacent position to an enolised or enolisable keto group, and the benzene ring B can contain further substituents.