转印与直接捺印指印特征比较研究  

Comparative Study on the Characteristics of transfer Printing or direct Printing Fingerprints

作　　者：苏琳 Su Lin(Gansu Police College,Lanzhou Gansu,7730020 China)

机构地区：[1]甘肃警察学院,甘肃兰州730020

出　　处：《西部公安论坛》2024年第3期67-70,共4页Journal of Western Public Security

基　　金：2022年度甘肃警察职业学院科研项目“转印文件上可见指印的条件及其特征研究”(项目编号:2022GJYXM03);2022年度甘肃省高等学校创新基金项目“文件伪造指印与手指蘸油擦印的特征比较研究”(项目编号:2022B-382)阶段性研究成果。

摘　　要：本文通过实验,研究以市场上常见的不同品牌印油(泥)为色料,在不同种类的纸张上直接捺印,再利用几种中介质转印至目标纸张而形成的转印指印,通过控制变量法及统计分析法、比较分析法总结转印指印与直接捺印指印的高价值差异特征。研究得出,不同中介质、印泥印油在不同纸张上的转印效果不同。但是转印后表现出纹线细节特征的指印,与直接捺印指印在墨迹色泽、墨迹分布、整体痕迹的自然程度、指印上汗孔、细点线、纹线边沿形态等三级特征,色料堆积、露白、浓淡变化的脊线凹凸反应特征及转印处纸张纤维特征存在不同的差异。This article conducts experiments to study the high-value differences between transfer printing fingerprints and direct printing fingerprints formed by using different brands of ink(paste)commonly found in the market as pigments,directly printing on different types of paper,and then transferring them to the target paper using several intermediate media.The control variable method,statistical analysis method,and comparative analysis method are used to summarize the high-value differences between transfer printing fingerprints and direct printing fingerprints.The result shows that the transfer effect of different media and ink on different papers varies.However,fingerprints that exhibit fine line details after transfer printing differ from direct printing fingerprints in terms of ink color,ink distribution,natural degree of overall traces,sweat holes on fingerprints,fine dot lines,and edge morphology of lines.There are also differences in the ridge line concave convex reaction characteristics of pigment accumulation,exposure to white,and changes in intensity,as well as the fiber characteristics of the paper at the transfer printing site.

关 键 词：转印指印 形成方式 可见指印 印面特征 

分 类 号：D91[政治法律—法学]