A study on identification of paint media using staining tests on cross-sections

用染色试验技术对艺术品中的新样品和旧样品进行了横断面上油漆介质的分析。中性酰胺黑试剂(AB3)和酸性品红是蛋白质的染色，已被证明可以在新旧样品中识别胶水介质。另一方面，苏丹黑B和油红O是油类的着色剂，在新样品中发现了干燥的油质介质，但在18世纪和19世纪的艺术品的陈年油地样品中没有发现油质介质。至于苏丹黑B，它经常粘在新旧胶基上，因此可能会造成对干燥油的蛋白质的误解。本研究对国家博物馆的许多艺术品中使用的颜料和媒介西方艺术进行了调查。

The staining test technique used in the analysis of paint media on cross-sections has been carried out on reference new samples and old samples from artworks. Neutral Amide black reagent(AB3) and acid Fuchsine, which are stains for proteins, have been shown to identify glue media both in new and old samples. On the other hand, Sudan black B and Oil red O, which are stains for oils, revealed to identify drying oil media in new samples, but not to identify oil media in aged oil ground samples from artworks of 18th and 19th century. As to Sudan black B, it often adhered new and old glue grounds, thus it might cause to misunderstand proteins for drying oils. Pigments and media used in many artworks in the National Museum Western Art have been surveyed in this study.