Iordanova I, Lolova D
Probl Khig. 1981;6:119-26.
A sanitary-chemical study on three kinds textile materials with different percentage content of polyamide silk (PAS) was carried out. Migration of chemicals was studied - low molecular compounds of caprolactam (LMC) and triethanolamine in water extracts of the patterns tested. Thin layer chromatographic and spectrophotocalorimetric methods were employed. The summed up content of LMC of caprolactam was established in the first extracts of 5.0 to 7.0 mg/l for the various kinds of cloth, their proper separation in monomers, dimers, trimers, etc. oligomers being attained by the thin layer chromatographic investigation. Monomer content in the first extracts reaches to 1.15 mg/l, decreasing in the following ones to complete disappearing. At the same time dimers, trimers, etc. oligomers content of caprolactam progressively increases. The presence of triethanolamine and optical bleachers is established in the extracts investigated. The attention of the producers is drawn to a stronger control, still under production conditions, for washing out the residual quantities of non-polymerized oligomers and other chemicals of synthetic polyamide materials, aiming at ensuring harmless and biologically inert clothes.
对三种不同聚酰胺丝（PAS）含量百分比的纺织材料进行了卫生化学研究。研究了化学物质的迁移情况——己内酰胺的低分子化合物（LMC）和三乙醇胺在测试样品水提取物中的迁移。采用了薄层色谱法和分光光度量热法。各类布料首次提取物中己内酰胺LMC的总含量为5.0至7.0毫克/升，通过薄层色谱研究实现了其在单体、二聚体、三聚体等低聚物中的适当分离。首次提取物中的单体含量达到1.15毫克/升，在后续提取物中逐渐降低直至完全消失。与此同时，己内酰胺的二聚体、三聚体等低聚物含量逐渐增加。在所研究的提取物中发现了三乙醇胺和光学漂白剂的存在。提醒生产商在生产条件下仍需加强控制，以洗去合成聚酰胺材料中残留的未聚合低聚物和其他化学物质，旨在确保衣物无害且具有生物惰性。
