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What Is The Principle Of Color Stripping Of Cationic Dyes
Apr 24, 2018

In the course of our use of dyes, we usually peel off. Today we will see what the principle of cationic dye stripping is.

Dye stripping is caused by chemical action, fiber damage to dyes, and loss of color.

The two main types of chemical stripping agents are commonly used:

One is to restore the stripper, which destroys or decolorization by destroying the dyeing structure of the dyeing system. However, the reductant can cause damage to some structure of the dye color system, so its fading can still be recovered, such as the anthraquinone structure of the color system; the commonly used insurance powder, and the carving of white powder.

The other is the oxidant and desorption agent. Under certain conditions, the oxidant will cause some components of the cationic dye chromophore system to be damaged. These irreversible structural changes cause dye to fade or decolorization, so theoretically the oxidizing stripper can be completely stripped. The anthraquinone structure of the dye using this method is especially effective. Hydrogen peroxide and sodium hypochlorite are commonly used.

Peeling advantage:

1) the dye stripping method is simple and can effectively remove cationic dyes.

2) the fibers were not seriously damaged, and the dye stripped fibers remained well stained for re dyeing.