What is the dyeing process of spandex? 2022-03-01
1. Dyeing spandex with disperse dyes, the optimum process conditions are: temperature 125℃, time 30~40min, pH value 5~6.2. The dyeing temperature should be controlled within the range of 120 to 130 °C. When the temperature is less than 120 °C, the color fastness is not enough, and it is easy to deco
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