Thứ Ba, 14 tháng 2, 2017

Commonly Used Dyes

COMMONLY USED DYES

These dyes in water solubility is very low, the particles are very fine, in the dye solution was a dispersion, are non-ionic dyes, mainly used for dyeing polyester, the color fastness higher.
These dyes were developed in the 50 's new dyes. Its molecular structure contains one or more active groups, under appropriate conditions, with the fiber can be a chemical reaction, the formation of covalent bonding. It can be used for cotton, linen, silk, wool, viscose fiber, nylon, vinylon and other textile dyeing.

This type of dye without relying on other agents can be directly dyed cotton, hemp, silk, wool and other fibers on the name. Its dyeing method is simple, complete chromatography, low cost. But its washing and light fastness is poor, such as the use of appropriate post-processing methods, can improve the color fastness of the finished product.

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