Traditional science in pigments and recipe of painting woodcarving in medieval Assam, India

IF 2.3 4区 材料科学 Q2 Chemistry
Asadulla A. Ali, Robin K. Dutta
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引用次数: 1

Abstract

A painting tradition of medieval Assam, popularly known as Hengul-Hāitāl, has been studied with an aim of restoring and conserving centuries-old woodcarvings and Sāncipat manuscripts for preserving in ordinary open conditions at villages and Vaishnavite monasteries. The pigments, their combinations for producing various shades and the resulting colors have been characterized using various physicochemical techniques. The study unravels some interesting traditional science, such as, using red Hengul (cinnabar), yellow Hāitāl (yellow orpiment) and blue Nīl (Indigo or Prussian blue) as primary colors to produce any desired shade, inclusion of either or both of Hengul and Hāitāl in every shade to repel fungi and insects, applying Kharimāti (a clay) as a wood-primer for better painting effects, choosing of Bael gum as a robust non-staining natural adhesive and finally varnishing with Lā (a natural lac) to protect the pigments from natural erosion and protect the woodcarving from humidity and contaminating hands touching them. The findings provide clues to develop an appropriate method of restoration of partially worn-out woodcarvings for preserving them in ordinary open conditions, based on the traditional method of preparation.

Abstract Image

中世纪印度阿萨姆邦的传统颜料科学和木雕绘画配方
中世纪阿萨姆邦的绘画传统,通常被称为Hengul-Hāitāl,已经被研究,目的是恢复和保存数百年的木雕和Sāncipat手稿,以便在村庄和毗什纳维修道院的普通开放条件下保存。颜料,它们的组合产生不同的色调和所产生的颜色已经用各种物理化学技术进行了表征。这项研究揭示了一些有趣的传统科学,例如,使用红色的Hengul(朱砂),黄色的Hāitāl(黄色的香料)和蓝色的n l(靛蓝或普鲁士蓝)作为原色来产生任何想要的色调,在每种色调中加入Hengul和Hāitāl中的一种或两种都可以击退真菌和昆虫,使用Kharimāti(粘土)作为木材底漆以获得更好的绘画效果。选择Bael胶作为一种坚固的不染色的天然粘合剂,最后用lha(一种天然紫胶)进行清漆,以保护颜料免受自然侵蚀,保护木雕免受潮湿和接触它们的手的污染。这一发现为开发一种适当的修复方法提供了线索,该方法可以在传统的准备方法的基础上,将部分磨损的木雕保存在普通的开放条件下。
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来源期刊
Journal of Coatings Technology and Research
Journal of Coatings Technology and Research CHEMISTRY, APPLIED-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
4.40
自引率
8.70%
发文量
0
期刊介绍: Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.
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