Release time：2022-09-19 Click:
What is Direct dyes?
Direct dyes are dyes that can be heated and boiled in neutral and weakly alkaline media and can be dyed without the help of mordant. Direct dyes are made by virtue of the hydrogen bond between direct dyes and cotton fibers and the combination of van der Waals force. They are mainly used in fiber, silk, cotton spinning, leather and other industries, as well as in paper making and other industries. Direct dyes can be divided into azo, stilbene and other types according to their structures. According to its application classification, it mainly includes ordinary direct dyes, direct light fast dyes and direct azo dyes.
Color shade of Direct dyes
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