刑事案件现场中纤维上染料的检验及应用

Examination of dyes on fibers from scenes of criminal cases and its application

在各类刑事案件现场提取到的有色纤维和纺织品物证,除鉴别纤维的种类及混纺率外,还须鉴别纤维上的染料与比对样品是否相同.纤维上染料的分析一直是法庭科学探讨和研究的重要课题之一.只有充分了解和掌握现场中染料的分类、染料种类及对纤维上染料的萃取及其检验等内容,才能充分发挥案件现场纤维或纺织品上的染料在侦查破案中的作用,真正服务于基层办案.

With regard to the physical evidences found on various scenes of criminal cases, including the colored fibers and textile pieces, the dyes on the fibers, besides the fiber kinds and blending ratios, must also be certificated to confirm whether they are identical to the control samples. The analysis of the dyes on fibers has always been one of the important research projects in the forensic science field. The dyes on the textile fibers from the case scenes can play the role in the case detections and serve the base courses＇ investigations only when the classification of the scene dyes, the kinds of the dyes on the fibers, and the extraction and examination of the dyes on the fibers are fully known and mastered.