102654 ⎘
Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes ; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films; Blends of pigments; Mixtured crystals; Solid solutions; Mixtures of two or more azo dyes mixture of two or more monoazo dyes; Mixtures of two or more reactive monoazo dyes all the reactive groups being directly attached to a heterocyclic system