安徽博物院所藏7幅潘玉良油画矿物色料的组成分析

Pigment analysis from seven oil paintings by PAN Yu-liang collected at the Anhui Museum

油画具有色料种类繁多、同一色系的颜料多样及对环境比较敏感等特性,加上颜料自身的风化作用,仅凭肉眼难以分辨。在修复性保护工作之前,对需要补色、补底处原色料的鉴定是一项基础性的工作,以便为修复时色料的选择提供依据。为此,本研究运用X射线衍射(XRD)、X射线荧光(XRF)等方法对7幅安徽博物院收藏的待修复的潘玉良油画矿物色料进行了物相及成分分析,讨论了补色修复时色料选择应注意的问题,以避免因色料粉之间不兼容(起化学反应)而对画作造成的二次伤害。

Many pigments have been used for oil paintings. The same color group might have a number of pigments and these pigments are relatively sensitive to the environment changes. When the pigments degrade,it is hard to distinguish them by naked eye. Before restoration and protection,identification of the original pigments at the places where the pigments was lost is a fundamental task. This information is needed for selection of pigments used to restore the painting. The pigments from seven oil paintings by a famous Chinese painter,Pan Yu-liang,were analyzed by X-ray diffraction and X-ray fluorescence. This paper discusses the concerns when selecting pigments for restoration. The selected pigments should be carefully selected to avoid incompatibility issues,i. e.,chemical reactions that further damage the paintings（ secondary damage）.