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Dyeing on an overflow machine, heating and cooling will directly affect the shrinkage of the fiber, resulting in a fold. For thermoplastic fibers such as nylon, once the fold is formed, it will be irreversible. Therefore, when dyeing, special attention should be paid to the need to slowly raise/lowe Read More
a) The semi-products before dyeing do not meet the requirements. If the dyed semi-finished product has insufficient mercerization, the mercerization will be alkali-colored, which will change the shade. For example, after sulfide dyeing, the cloth surface will be red and not black.b) Hard water is us Read More
What is suede and the difficulty of dyeing processNatural suede originally refers to animal suede leather, which is very similar to deer in length, but the suede leather is not the same as the suede usually seen, and there is no short and dense fluff.This is because the skin and hair of the animal m Read More
Due to the direct collision of dye molecules, they aggregate into larger dye aggregates (or dye associations). These larger dye aggregates are deposited on the fabric during the dyeing process, causing color stains.When dyeing:The free dye molecules will recrystallize during the heating (or cooling) Read More