The patent application relates to a thiophene azo dye used as toner, laundry care compositions comprising such thiophene azo dyes, methods for preparing such thiophene azo dyes and laundry care compositions and methods of using them. The thiophene azo dye comprises a formally charged portion and generally comprises at least two components: at least one chromophore component and at least one polymer component. The appropriate chromophore components are usually blue, red, violet or violet when exposed to UV light, or they can absorb light to reflect the same hue. These thiophene azo dyes are useful in providing a toning effect, for example, a whitening effect on the fabric, and does not accumulate over time and does not cause undesirable changes to the treated fabric. The thiophene azo dye is generally stable in the laundry detergent composition.
【技术实现步骤摘要】
【国外来华专利技术】
【技术保护点】
【技术特征摘要】
【国外来华专利技术】
【专利技术属性】
技术研发人员:G·S·米瑞科,R·L·小玛哈菲,X·M·洪,E·托雷斯,D·J·瓦伦蒂,
申请(专利权)人:宝洁公司,
类型:
国别省市:
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