National Forensic Centre, Swedish Police Authority, 581 94 Linköping, Sweden.
Forensic Sci Int. 2023 Jul;348:111604. doi: 10.1016/j.forsciint.2023.111604. Epub 2023 Feb 13.
A population study was carried out by collecting textile fibres present on the seats in a church, a cinema and a conference centre in Linköping, Sweden. The collection was carried out in such a way as to avoid inadvertent fibre collectives and to enable comparison of the frequency data between venues. In total 4220 fibres were examined and details of their characteristics were recorded and entered into a searchable database. Only coloured fibres over 0.5 mm in length were included in the study. 70% of the fibres were classified as cotton, 18% were man-made, 8% wool, 3% other plant and 2% other animal. Polyester and regenerated cellulose were the most abundant man-made fibres. The most frequently occurring combinations were blue and grey/black cotton, making up approximately 50% of all fibres. All other combinations were made up of less than 8% of the fibres, with red cotton being the next most prevalent. The results regarding the most frequently occurring fibre types, colours and colour/fibre type combinations are comparable to those of other population studies that have been carried out in different countries over the last 20-30 years. Additional observations regarding the frequency occurrence of certain characteristics are presented, such as differences in thickness, cross-sectional shape and presence of pigment or delustrant for the man-made fibre types.
一项针对瑞典林雪平市一座教堂、一家电影院和一个会议中心内座椅上的纺织纤维的人群研究，通过收集这些纤维展开。收集工作以避免无意中收集到纤维集合体，并能够比较场馆之间的频率数据。共检查了 4220 根纤维，记录了它们的特征细节，并将其输入到一个可搜索的数据库中。只有长度超过 0.5 毫米的有色纤维才包含在研究中。70%的纤维被归类为棉花，18%为人造纤维，8%为羊毛，3%为其他植物纤维，2%为其他动物纤维。聚酯纤维和再生纤维素是最常见的人造纤维。最常见的组合是蓝色和灰色/黑色棉，约占所有纤维的 50%。其他所有组合的纤维含量都低于 8%，其次是红色棉。关于最常见的纤维类型、颜色和颜色/纤维类型组合的结果与过去 20-30 年在不同国家进行的其他人群研究相似。还提出了关于某些特征的频率出现的其他观察结果，例如人造纤维类型在厚度、横截面形状和颜料或消光剂存在方面的差异。
