织物表面滴落状血迹形态分析与应用  

Morphological analysis and application of drip bloodstain on fabric surface

作　　者：钱尊磊 李响 段博中 贾振军[1] 张梓纯 周屹成 Qian Zunlei;Li Xiang;Duan Bozhong;Jia Zhenjun;Zhang Zichun;Zhou Yicheng(School of Investigation,People's Public Security University of China,Bejing,100038,China;Science China Press,Bejing,100717,China;Public Security Bureauof Bao'an District,Shenzhen,Guangdong,518101,China)

机构地区：[1]中国人民公安大学侦查学院,北京100038 [2]《中国科学》杂志社,北京100717 [3]深圳市公安局宝安分局,广东深圳518101

出　　处：《中国法医学杂志》2022年第4期352-356,360,共6页Chinese Journal of Forensic Medicine

基　　金：中国人民公安大学公共安全行为科学实验室开放课题(2020SYS01);中国人民公安大学2019年度基本科研业务费重点项目(2019JKF219);上海市刑事科学技术研究院开放课题(2019XCWZK02)。

摘　　要：目的 探究织物表面血迹形态的变化规律。方法 选取纯棉、涤纶和亚麻三种常见织物作为血迹承载客体,分析不同靶面质地和滴落高度对血迹形态的影响。结果 在一定高度范围内,棉织物表面血迹的大小与滴落高度正相关,与纱线支数负相关。涤纶织物表面血迹毛细现象明显,血迹大小随滴落高度的增加先增大后减小,最后趋于稳定。亚麻织物呈现出更强的疏水特性,血迹面积最小。卫星血迹的数量和溅洒的最远距离与织物的材质、纱线支数以及滴落高度显著相关,可作为血液滴落距离推断的重要参考指标。结论 本研究可为流血现场中血源判断和行为分析提供一定的数据支撑,具有重要的理论和实际应用价值。Objective To explore the effect of bloodstain patterns on the fabric surface. Methods Three common fabrics, pure cotton, polyester and linen, were selected as stain carrier, objective to analyze the influence of different target surface texture and dripping height on bloodstain morphology. Results The size of blood on cotton fabric surface is positively correlated with the dripping height and negatively correlated with the yarn counts within a certain height range.The capillary phenomenon of bloodstain on the surface of polyester fabric was obvious, and the bloodstain size increased firstly and then decreased with the increase of the dripping height, and finally tended to be stable. Linen fabric showed stronger hydrophobic properties and the smallest bloodstain area. The amount of satellite bloodstains and the furthest distance of the spatter were significantly related to fabric material, yarn count, and dripping height, which could be used as an important reference index to infer the blood dripping distance. Conclusion This research can provide certain data support for blood source judgment and behavior analysis in bleeding scene, and has important theoretical and practical application value.

关 键 词：织物 血迹形态 滴落高度 卫星血迹 表面张力 

分 类 号：DF795.2[医药卫生—法医学]