Bleaching process to wool/flax blended yarn with peracetic acid

Bleaching process to wool/flax blended yarn with environmental friendly peracetic acid was carried out.On the basis of studying the bleaching performance influenced by factors such as peracetic acid concentration,bleaching temperature,pH value,treatment time and stabilizer consumption,the optimal bleaching technology was determined.That were peracetic acid 8 g/L,sodium pyrophosphate 1.5 g/L,pH value 6.5,bleaching at 75 ℃ for 80 minutes.Results of performance test indicated that the beaching condition to wool/flax blended yarn with peracetic acid was mild,and having little damage to the blended yarn,being conducive to environmental protection and following knitting,weaving,dyeing and finishing.The feasibility of technology was turned out.