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The proper pretreatment is very important for textile dyeing and finishing, especially in recent years, customers and consumers strict in dyeing and printing products increasingly, such as color, color fastness, appearance, shrinkage, feeling, more highlights the importance of pretreatment. The main purpose is to make suitable for pretreatment of textile dyeing and printing, and has good uniformity and reproduction, and reduce the reparation dyes, additives and water, energy consumption, improve the rate of manufactured goods, reduce the manpower.
Used in order to eliminate the use of natural or man-made impurity on the fabric, and give full play of the excellent characteristics of fabric, such as white, soft and good permeability, to adapt to the needs of the subsequent process, the pretreatment auxiliaries mainly include wetting agent, penetrant agent, bleach, cleaning agent and so on.
Textile pretreatment chemicals as one part of textile auxiliary chemicals is the first step of textile treatment which is the purpose of removing slurry, oil, wax, and pectin etc impurity, improving absorbent and whiteness of the fabric, and to improve the hand feeling, so as to meet the requirement of subsequent dyeing and finishing process. Pretreatment auxiliaries chemicals can effectively solve the problems.