摘要：

A pilot-scale installation has been used for the continuous differential dyeing and simultaneous bulking of acrylic yarns. The influence of yarn velocity, steam pressure and steaming temperature on the bulking effect and the rate of dye fixation was studied. Bulking and fixation were also affected by the composition of the dyebath. Conditions were established under which a very good bulking effect and almost complete dye fixation could be achieved.

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