Wasserloesliche Anthrachinonfarbstoffe

摘要

H2O-soluble (free of -SO3H and -COOH groups) anthraquinone dyes of formula:- Esp. for the dyeing of polymers or copolymers of acrylonitrile and dicyanoethylene in reddish-blue to blue shades of good wet and light fastness. Also suitable for polyesters, polyamides and cellulose esters. The dyestuffs can be applied from acid, neutral or weakly alkaline dyebaths (pH 3-8) at temps. of 80-120 deg.C.