Bis-Azo Colorants for Use as Bluing Agents

摘要

This invention relates to bis-azo colorants for use as bluing agents, laundry care compositions comprising bis-azo colorants that may serve as bluing agents, processes for making such bluing agents and laundry care compositions and methods of using the same. The bluing agents are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. These bluing agents are advantageous in providing a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics.

主权项

1. An alkoxylated bis-azo polymeric colorant comprising the following structure: wherein: R1 and R2 are independently H, alkyl, alkoxy, alkyleneoxy, alkyl capped alkyleneoxy, polyalkyleneoxy, alkyl capped polyalkyleneoxy, urea, or amido; R3 is an aryl group substituent that may be a substituted phenyl or naphthyl moiety; X is a substituted sulfonamide group wherein the substituents are phenyl moieties further substituted with polyalkyleneoxy moieties having from 2 to 30 repeating units.