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Dyeing process, the chemical reaction between the dye and the fiber, and fiber-like functional groups on the different, so there is a big difference. Dye on the fiber by the above formula, the dye and fiber combination to generate a new overall.
If not washed, it will affect the color fastness of finished products, wet ironing on the white cloth serious stains. This color reactive dyes printed cloth is the control of the quality is particularly important, if not fixed on the dye, in the process of washing to produce white pollution, reactive dyes can not be ignored in the application of the problem.
The final stage of dyeing the dye is to wash away the immobilized dyes, including the hydrolyzed and unresponsive dyes. Because the immobilized dye is only physically adsorbed on the fiber.
When dyed, the reactive dyes are first dissolved in water, dyes and water molecules into the fiber at the same time, and the fibers are sorbed. The degree of absorption of the dye in the dye (color rate) depends on the affinity of the dye and the amount of electrolyte (salt, alkali, acid) in the dye solution.
can. When cooking, add salt and color better.
