申请人:Torres Eduardo
公开号:US20120123101A1
公开(公告)日:2012-05-17
This application relates to thiophene azo dyes for use as hueing agents, laundry care compositions comprising such thiophene azo dyes, processes for making such thiophene azo dyes, and laundry care compositions and methods of using the same. The thiophene azo dyes contain a formally charged moiety and are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. Suitable chromophore components generally fluoresce blue, red, violet, or purple color when exposed to ultraviolet light, or they may absorb light to reflect these same shades. These thiophene azo dyes are advantageous in providing a hueing effect, for example, a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics. The thiophene azo dyes are also generally stable to bleaching agents used in laundry care compositions.
本申请涉及用作着色剂的噻吩偶氮染料,包括含有这种噻吩偶氮染料的洗涤护理组合物,制备这种噻吩偶氮染料的方法,以及包含这种噻吩偶氮染料的洗涤护理组合物和使用方法。这些噻吩偶氮染料含有一个形式上带电的基团,通常由至少两个组分组成:至少一个色团组分和至少一个聚合物组分。适用的色团组分通常在紫外光照射下呈蓝色、红色、紫色或紫色,或者它们可以吸收光线以反射这些相同的色调。这些噻吩偶氮染料在提供着色效果方面具有优势,例如,对织物产生美白效果,同时不会随时间累积并导致处理过的织物产生不良的蓝色变色。这些噻吩偶氮染料通常对洗涤护理组合物中使用的漂白剂具有稳定性。