Direct dyes can be heated and boiled in the neutral and weak-key phase medium, and the help of the dyeing agent can be dyed. The direct dye is combined with the hydrogen bonds between the direct dyes and the cotton fiber. It is mainly used in fiber, silk, cotton spinning, leather, and other industries, and at the same time, it is also applied in the papermaking industries. Direct dyes can be divided into puppet nitrogen, two-styrene, and other types according to their structure. View more: https://www.globalchemmall.com/direct-dyes
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