high pressure cone dyeing machine

Cotton cone yarn dyeing,  process mainly consists of the following five steps: PRETREATMENT This step primarily removes natural impurities (cottonseed hulls, waxy substances, etc.) and pigmentum from the yarn, enhancing its whiteness and capillary effect to create conditions for dyeing process...

PRETREATMENT INFLUENCES REPRODUCIBILITY Many dyeing plants don't pay attention to pre-treatment. Actually, many problems in dyeing processing because of ingnoring do enough pre-treatment. Impurity removal degree, whiteness, pH value after washing, purification of hydrogen peroxide after bleaching, a...