Study On The Identification Of Wool/Silk And Mixtures Of Multicomponent Fiber Based On Dissolution Method

Wool/silk blended fabric with excellent hygroscopicity,warmth,dyeing and tactile effect,and become high-quality clothing fabrics.Actual production tends to incorporate other fibers to reduce costs.The national standard of sulfuric acid dissolved wool / silk in the actual detection of the accuracy is not high,in addition,the three components of the blending identification is relatively difficult and the country does not have a uniform determination of fiber content in this area.Based on the dissolution method,the effects of temperature,time,concentration of solution and different dissolution reagents on the results of wool/silk were discussed.It was found that when the wool / silk was dissolved by 75% sulfuric acid method,the silk dissolved more slowly at 40 ? and the dissolution time was shorter;and compared to 75% sulfuric acid method,the results under 59.5% sulfuric acid method and formic acid and zinc chloride method are closer to the actual values.In addition,this paper focuses on the dissolve process of wool / silk and other nine kinds of fibers,such as,cellulose fiber,regenerated cellulose fiber,elastic fiber,polyester fiber,polyamide fiber,soybean protein composite fiber,polyacrylonitrile fiber,tussah silk and polypropylene fiber.Further Studies on the problems in the dissolution.All of these provided the empirical reference for the actual inspection...