粘有纸张的胶带剥离同时显现胶黏面指纹

Peeling the Tape Pasted on Paper and Appearing Latent Fingerprint on the Adhesive Side

为了更好地解决粘贴在普通A4纸上的胶带剥离与胶粘面指纹同时显现问题,本文对不同剥离试剂的剥离效果、不同显现试剂的显现效果以及不同胶粘面汗潜指纹遗留时间的影响进行了比较。实验结果表明,丙酮与无水乙醇按照1:10混合而成的试剂剥离效果最好;聚乙二醇和上海牌214型碳素墨水按照1:15混合而成的试剂显现效果最好;遗留5-7天的胶粘面汗潜指纹经染色2次后显现效果最佳,10-20天的实验样本经染色3次后显现效果最佳。

In order to better solve the problem of peeling tape pasted on ordinary A4 paper and appearing fingerprinting on the adhesive side, the peeling reagent acetone and anhydrous ethanol at different volume ratios were compared, the apparent reagent polyethylene glycol and Shanghai brand 214 carbon ink at different volume ratios were compared, and the latent fingerprint left time on the adhesive side were also compared. The results showed that the mixture of acetone and anhydrous ethanol at 1:10 had the best peeling effect, polyethylene glycol and Shanghai brand 214 carbon ink at 1:15 were the best appearing reagent, The latent fingerprint left on the adhesive side for 5-7 days need staining 2 times and 10-20 days need staining 3 times showed the best effect.