Shrinkage is a phenomenon in which the length or width of textiles undergoes washing, dehydration, and drying processes in a certain state. The degree of shrinkage involves different types of fibers, fabric structure, different external forces experienced during fabric processing, etc., and has different performance; Factors that cause fabric shrinkage; The official name of "shrinkage rate" is "washing dimensional change rate", which refers to the percentage of textile shrinkage after washing or soaking.