主管:中华人民共和国司法部
主办:司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N

中国司法鉴定 ›› 2012 ›› Issue (3): 52-78.

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新型亲油性纳米二氧化硅粉末在手印显现中的应用

王鸿飞1,徐 尉1,李孝君2等   

  1. 1.中国人民公安大学,北京 100038; 2.公安部物证鉴定中心,北京 100038; 3.总参保卫部技术室,北京 100091
  • 收稿日期:2012-03-08 出版日期:2012-05-15 发布日期:2022-07-14
  • 作者简介:王鸿飞(1985—),男,硕士研究生,主要从事痕迹检验技术和手印学研究。
  • 基金资助:

    科研创新项目(11LGSO05)

The Study of Developing Latent Fingerprints with Novel Hydrophobic Nano-silica Powder

WANG Hong-fei1, XU Wei1, LI Xiao-jun2, etc.   

  1. 1.Chinese People's Public Security University, Beijing 100038, China; 2.Institute of Forensic Science, Ministry of Public Security, Beijing 100038, China; 3.PLA General Staff Headquarters, Beijing 100091, China
  • Received:2012-03-08 Published:2012-05-15 Online:2022-07-14

摘要:

目的 比较新型亲油性纳米二氧化硅粉末显现手印的效果。方法 应用亲油性纳米二氧化硅粉末与现场勘查箱内金粉、银粉和黑色磁性粉显现非渗透性客体表面油汗混合手印,并在自然光下观察比较显现效果。结果 亲油性纳米二氧化硅粉末显现出的手印图像纹线清晰连贯,背景反差好。结论 亲油性纳米二氧化硅粉末显现手印具有一定的优势。

关键词: 亲油性二氧化硅纳米粉末, 油汗混合手印, 显现

Abstract:

Objective To investigate the fingerprint developing effect by novel hydrophobic nano-silica. Method Developing effects were comparied between hydrophobic nano-silica powder and traditional materials including copper powder, aluminum powder and black magnetic powder for oil-sweat mixed fingerprints on non-permeable objects under natural light. Results The latent fingerprints developed by novel hydrophobic nano-silica powder displayed more details and better background contrast in the fingerprint image. Conclusion The novel hydrophobic nano-silica material is more effective in fingerprint development than traditional materials.

Key words: hydrophobic silica nano-powder, oil-sweat mixed fingerprint, development

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