39. What is the working principle and practical effect of Bath Treasure?
Answer Yuzhongbao is a softener, but this kind of softener can be used in the same bath as fabric coloring or fabric finishing, so it is also called bath softener, bath lubricant, bath anti-wrinkle agent, etc. Its basic property is to give fabrics smoothness and softness, that is, to adjust the kinetic friction coefficient and static friction coefficient between fibers. For the smoothing effect, it mainly refers to reducing the dynamic friction coefficient between fibers; the softening effect refers to reducing the dynamic and static friction coefficients between fibers and at the same time, further reducing the static friction coefficient. The relative comparison of dynamic and static friction coefficients (Δμ=μs-μd) is generally an important factor in evaluating the softness effect. During the use of Yuzhongbao, it must have the ability to adsorb fibers due to the chemical affinity of opposite charges and van der Waals attraction. Some softener molecules contain hydroxymethyl, amino, etc. that can react chemically with the hydroxyl groups of cellulose molecules. Methoxy, ethoxy, alkenyl and other groups can significantly improve its wash resistance. However, judging from the performance and requirements of Yuzhongbao softener, first of all, its ionicity is generally nonionic because it must adapt to the same bath as ionic dyes; secondly, its adsorption to fibers cannot affect the dye uptake rate of the fibers. . Its main function is to reduce the friction between the cloth surface and the coloring machine when it is bathed with dyes or finishing agents, and prevent the occurrence of hair balls and wrinkles when the machine is running. It has good lubricity and softness, and can reduce harmful friction, Reduce wrinkles and creases. Some bath products are suitable for pre-treatment and can be bathed with various additives. They can soften and stabilize the hydrogen peroxide in the hydrogen peroxide bleach solution. For example, Yuzhongbao ADVANLUB BH (product of BK Fang Advanced Chemical Co., Ltd.) is suitable for wet finishing of any fiber fabric that is prone to wrinkles, creases, chicken paw prints and scratches; Yuzhongbao PACD (Guangdong Zhongshan Hongxiang Fabrics) Printing and dyeing auxiliary factory products) can be applied to pre-treatment, bleaching, coloring, soaping and other processes of various fiber fabrics in rope coloring machines or high-pressure coloring machines to prevent wrinkles, scratches, chicken feet, etc. Printing, etc.; Yuzhongbao CO (product of Zhejiang Ningbo Xinghua Chemical Co., Ltd.) is suitable for oxygen bleaching and coloring of various fabrics. It can avoid meridional stripes and cracks in the jet coloring machine, and prevent wrinkles caused by long-term mechanical action at high temperatures. It can be seen that the performance and use of various bath treasures are not necessarily exactly the same. Their application effects should be selected according to different fabrics and different processes. Your factory can screen according to the actual situation and application effects.
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