Interpretation of Coloring Technique and Pigment Analysis for King Sejo’s Palanquin in Gongju Magoksa Temple, Korea

Abstract

According to oral tradition, the King Sejo's palanquin is indeed the palanquin of King Sejo, the 7 th monarch of the Joseon dynasty who reigned from 1455 to 1468, which was left behind after visiting the Magoksa temple.The palanquin is painted in five colors, mainly black, white, yellow, red and green.The chromaticity measurement of the yellow pigment showed that orpiment and gold are a noticeable distinction between the lightness and b * values.In the case of the red pigment, a * values of areas painted with cinnabar tend to measure at high values.As a result of the optical microscopy, scanning electron microscopy and energy dispersive spectroscopy analyses, it was determined that Chinese ink was used for the black pigment, lead white and white clay were used for the white, and orpiment and gold for the yellow.The red pigment was found to be the result of minium, cinnabar and red ocher, atacamite was used as green pigment.Though the analysis results of the cross sections on very small exfoliation fragments of pigments, it was confirmed that white clay and lead white were used for the preparation layer.In addition, several coloration techniques were considered based on these analyses.

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