BIS azo dyes for use as agents of black spot

摘要

The present invention relates to bis azo dyes for use as agents of black spot.Compositions for the care in the washing of clothes consisting of bis azo dyes that may serve as agents of black spot.Processes for producing agents of black spot as compositions for the care in the washing of clothes and methods for use of the same.The agents of black spot are generally comprised of at least two components: at least one chromophore component and at least one polymeric component.These agents of black spot are advantageous to provide a whitening effect of fabrics, at the same time, not accumulate over time.Causing undesirable blue discoloration in the tissues treated.