Quantitative analysis of spandex in common denim fabric

This artical mainly analyses the quantitative method of polyurethane fiber in denim fabrics. Three kinds of six fabrics are used to carry out three test scheme,and the test results are compared and analyzed. The results show that the content of polyurenthane fiberin hydrocholic acid method is close to that in split method. Compare with the DMF method, it has higher accuracy, stronger applicability,lower cost,avoid the environmental problems caused by the use if the organic test,and improves the detection efficiency and accuracy of detection date. It is very feasible.