Impact of sericin treatment on pilling resistance of knitted cashmere

The knitted cashmere was finished with sericin solutions in order to improve its pilling resistance.The relationship between the finishing processing parameters and the pilling resistance of the fabric was analyzed,and the laundry resistance of the knitted cashmere before and after finishing was compared.The results showed that when the concentration of sericin solution 8%(o.w.f),pH value 6,temperature 50 ℃,and impregnating 30 minutes,the best pilling resistant result of the cashmere was achieved with pilling resistance raised by 1 grade than that of the control.The cashmere also exhibited good laundry resistance,its pilling resistant grade remained the same after washing 20 times.The comparisons of moisture regain,shrinkage and bursting strength of the cashmere before and after finishing showed that all of these properties of the finished cashmere improved except that the hand feeling decreased slightly.