PREPARATION OF DISPERSE DYESTUFFS HAVING IMPROVED SAFETY PROPERTIES AND/OR A HIGHER DYESTUFF YIELD

摘要

PREPARATIONS OF DISPERSE DYESTUFFS HAVING IMPROVED SAFETY PROPERTIES AND/OR A HIGHER DYESTUFF YIELD Solid or aqueous liquid preparations of dispersed dyestuffs of improved safety properties and/or of a higher dyestuff yield when applied to the pad-dyeing process of synthetic or semi-synthetic fibrous materials containing beside usual disperse dyestuffs, dispersing agents, wetting agents, grinding auxiliary agents, 0,5 to 30, preferably 1 to 10 per cent by weight of at least one phosphoric acid ester of the formula (1) or (2) in which R represents the integer 2 or 3, m represents an integer from 0 to 10, and R represents alkyl of 8 to 20 carbon atoms, or of mixtures of phosphoric acid esters of the said formulae (1) and (2).