期刊名称：International Journal of Conservation Science
印刷版ISSN：2067-533X
电子版ISSN：2067-8223
出版年度：2014
卷号：5
期号：3
页码：329-342
出版社：Alexandru Ioan Cuza University of Iasi
摘要：Prussia blue and phthalo blue have a particularly importance in retouching because they provided a considerable amount of green and they are also transparent, which will give strong clear greens when needed during the retouching practice. The objective of this experiment is to evaluate the colorimetric change of the two cited pigments, in watercolours, after being exposed to direct sunlight for one year, comparing the results with another two samples protected from solar radiation, and also analyse the spectral curves similarity between both. The pigments are of the brand Artist�s Watercolour of Winsor & Newton. Colour variations were determined in the uniform colour space called CIELAB. The results show that phtalo is more stable than Prussian blue.
