ONE BATH ONE STEP DYEING METHOD FOR MIXED FABRIC OF PURE POLYPROPYLENE AND POLYESTER

摘要

The present invention relates to a dyeing method for mixed fabric of pure polypropylene and polyester using dispersion dyes having affinity to polypropylene and polyester. The dyeing method includes a step for preprocessing fabric to be dyed, a step of dyeing the fabric at 115-120 deg.C for 20 minutes or more using dispersion dyes having a long alkyl group instead of hydrogen of the amino group which shows affinity to polypropylene and polyester, and a step of removing remaining dyes by processing the dyed fabric.