AbstractThis paper presents a study of the drawing papers from Borko Lazeski’s cartoons for a mural painting. The collection is comprised of more than 20 single pieces (170×500 cm) executed in charcoal, pencil, pastel, tempera and ink. The cartoons exhibit different types of damages, such as grease stains, moisture stains, cracks, flaking paint, areas of loss caused by insects and mould stains. The study included spot tests, ATR-FTIR and micro-Raman spectroscopy to characterise the artist’s papers. They were found to be a type of paper composed of partly bleached, neutral sulphite semi-chemical (NSSC) wood pulp originating from coniferous trees (softwood) with the occasional use of abaca fibres. The laboratory tests revealed slightly acidic conditions (pH=5.01–6.52), high lignin content (>5 %) and alum-rosin sizing. Infrared spectroscopy confirmed all findings of the spot tests. Micro-Raman spectroscopy showed the presence of gypsum in the papers. The study addresses conservation issues arising from the chemical nature of the paper support and highlights the need for an extended study in order to be able to make informed treatment choices.

中文翻译：

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Borko Lazeski 的漫画（1951-56 年）绘图纸的表征

摘要本文介绍了对 Borko Lazeski 的壁画中的绘图纸的研究。该系列由 20 多幅单幅作品（170×500 厘米）组成，以木炭、铅笔、粉彩、蛋彩画和墨水制成。这些漫画展示了不同类型的损坏，如油渍、湿渍、裂缝、剥落的油漆、昆虫和霉菌造成的损失区域。该研究包括现场测试、ATR-FTIR 和微拉曼光谱来表征艺术家的论文。它们被发现是一种由部分漂白的中性亚硫酸盐半化学 (NSSC) 木浆组成的纸张，这些木浆源自针叶树（软木），偶尔使用蕉麻纤维。实验室测试揭示了微酸性条件 (pH=5.01–6.52)、高木质素含量 (>5%) 和明矾松香施胶。红外光谱证实了现场测试的所有结果。显微拉曼光谱显示纸中存在石膏。该研究解决了由纸张支持的化学性质引起的保护问题，并强调需要进行扩展研究，以便能够做出明智的治疗选择。