热敏纸表面上汗潜指纹的显现  

Techniques for developing fingerprints on thermal paper

作　　者：李力[1] 

机构地区：[1]山东警察学院,济南250014

出　　处：《刑事技术》2006年第2期18-19,共2页Forensic Science and Technology

摘　　要：茚三酮溶液显现法是显现普通纸表面汗潜指纹的常用方法。但是由于热敏纸表面涂有热敏涂料,使得上述方法在该客体表面汗潜指纹的显现中难以奏效。不过,在此方法基础上改良发展而来的1,2茚二酮法、二甲基氨基肉桂醛法、过量丙酮冲洗法、半醇酮茚显现法等4种方法能取得较好效果。Ninhydrin is a regular fingerprint reagent, but when used to thermal paper the paper surface will turn dark grey or black thereby obscuring any fingerprints that may subsequentlybe developed. A few techniques have been found for developing fingerprints on thermal paper by improving the original reagent, such as 1,2-Indandione solution, DMAC （dimethyl amino cinnam aldehyde） fumes , rinsing the thermal paper with an excess of acetone, thermalNin method.

关 键 词：热敏纸 汗潜指纹 茚二酮 二甲基氨基肉桂醛 半醇酮茚 

分 类 号：D918.91[政治法律—法学] TS761.2[轻工技术与工程—制浆造纸工程]