Shrinkage Finish of Acrylic Fiber Fabrics

Abstract

The method of shrinking the acrylic fibers with the mixture of dimethylformamide (DMF) and water has been proposed. The degree of the shrinkage (contractibility) increased up to 55%, with increasing the DMF volume content.The degree remarkably increased at the temperatures higher than the glass transition temperature of the acrylic fiber, indicating that the shrinkage was dependent on the infiltration of DMF solution to the fabric.The textile having both the pleated pattern made by the shrinking method and the unevenness of dyed stripes was tentatively produced.