摘要：Blended yarns composed of cotton and polyester were pyrolyzed with 10% hydrochloric acid by Curie-point pyrolyzer, and the pyrolysates were subjected to gas chromatograph. The data were used for the multivariate analysis such as a cluster analysis, cluster analysis derived from the deviation and principal component analysis. Subsequently the accurate blending ratios of blended yarns were calculated from the principal score. This method made it possible to determine the blending ratios of very small amount of blended yarns composed of cotton and polyester, and made it easy to perform the forensic discrimination of the blended yarns.
关键词：acid-catalyzed pyrolysis gas chromatography;multivariate analysis;blended yarn;Curie-point pyrolyzer;determination;hydrochloric acid
