METHOD FOR DYEING OF POLYESTER BLENDED FABRIC

摘要

The dyeing method of a polyester spun blend fabric is characterized by regulating the pH of a dye bath containing nonionic surfactant and metal ion blocking agent with an alkali at 9-12, adding a reactive dyestuff and a dispersive dyestuff to the dye bath, and scouring and dyeing the spun blend fabric of polyester/cotton or polyester/silk. The nonionic surfactant of formula (I), (II) or (III) having 8-16 HLB is added in an amount of 0.5˜10g/l, and the blocking agent of formula(IV) is added in an amount of less than 0.05g/l. In the formulas, R is C1-15 alkyl or aryl; M and M1 are each H, Li, Na or K; M2 is Li, Na or K; n is 1-40; m is 1-12. The alkali is pref. NaOH, KOH, Na2CO3, K2CO3 or potassium tripolyphosphate.