一、前言随着我国石油工业的长足发展，化纤制品大量进入我国人民的生活领域，合成纤维及其制品逐步代替棉、毛、麻、丝等，成为人们衣料的主要来源。同样，在刑事案件现场提取的纤维物证也日趋增多。对于各种纤维鉴定的报导，国内外已有很多。有红外光谱法、偏光显微镜法、小 I. Introduction With the rapid development of China’s petroleum industry, a large number of chemical fiber products have entered the realm of people’s life in our country. Synthetic fibers and their products gradually replace cotton, wool, hemp and silk and become the main source of people’s clothing. Similarly, the number of fiber evidence taken on the scene of criminal cases is also on the rise. For a variety of fiber identification reports, there are many at home and abroad. There are infrared spectroscopy, polarized light microscopy, small