The Application describes disperse dyes soluble in water of general formula (I)
D-L-Sn (I)
wherein:
D is a disperse dye insoluble in water
L is a linker
S is a sugar
n is comprised between 2 and 4
that are able to dye in an homogeneous way natural fibres and textiles and also textile materials including different fibres, and have high biodegradability through digestion by micro organisms, that found in the molecule itself a useful nourishment for their survival and proliferation; processes for the preparation of the above said dyes and their use are also described.
version of a previously-described 'naturalisation' procedure. Glutamic acid was chosen to achieve a doubleglycoconjugation, which is essential to give to the original disperse dye a water solubility suitable for reaching optimal dyeing conditions. UV-vis plot of the 'naturalised' species showed negligible differences when compared to those of the commercial dyes.
遵循先前描述的“归化”程序的新版本,将市售的Disperse Orange 29(1a)和Disperse Red 1(2a)精加工成糖缀合物种。选择谷氨酸实现双重糖缀合,这对于使原始分散染料具有适合于达到最佳染色条件的水溶性是必不可少的。与商业染料相比,“自然化”物种的紫外可见图差异可忽略不计。