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According to research, cotton wax can be removed no matter what kind of surfactant is used (generally, cationic surfactant is not used). Therefore, the compound of anionic and nonionic surfactants is generally used, and its HLB value should be considered when compounding, and it is advisable that th Read More
Pretreatment steps of nylon and its elastic fabrics: smoothing → desizing → scouring 1. Desizing of nylon woven fabricDesizing agent 8 g/LChelating dispersant 1 g/LLiquid caustic soda (30%) 30g/L Continuous open width desizing, speed 40m/min, using the first two working fluids, overflow washing one Read More
The quality of pre-treatment (liming and bleaching) is not only related to the quality of the finished bleached product, but also directly affects the quality of dyeing, printing, and finishing as a semi-finished product. Read More
1. dark spotsCauses:①The oil stain on the fabric is not cleaned during pretreatment, and the oil stain is darker during dyeing.②There is too much foam in the dyeing bath, and the mixture of foam, floral sweater, dye, etc. sticks to the fabric.③Dark oil spots caused by floating oil of defoamer.④The t Read More