A Study on the Physical Properties of Seokrok and Noerok Used as Green Pigment

Abstract

The purpose of this study is to analyse the properties of Seokrok and Noerok that are used for restoration of heritage and arts. Malachite is main constituent mineral for Seokrok and Celadonite is Main component of Noerok. To evaluate the physical properties of pigment, A,B-class Seokrok and heated Seokrok that are sold in market were selected. To compare this results, Noerok sold in Japan were studied. In addition, we studied the pigments of Noerok. The heat treatment had no significant effect on the physical properties, except for the color-difference. The color-difference of Seokrok is larger than that of the Noerok sold in Japan. The a * values of Seokrok specimens are horizontal distribution, so it will expand the coloring ranges. The properties that are chromaticity, specific gravity and oil-absorption of Noerok are different from Seokrok. Noerok is suggested that achromatic color because the values of a * located near zero. Specific gravity of Noerok is smaller than Seokrok, but oil-absorption is larger twice. Noerok and Amnok, although ingredients are different, it is possible to use alternative because of similar physical characteristics.

Monitoring the Change of Physical Properties of Traditional Dancheong Pigments

“…단청은 궁궐이나 사찰 등 전통 목조건축물의 내구성을 높이고 건축물의 성격에 따른 장식과 장엄을 위한 건축채 색이다 (Sohn, 2019) (Cho et al, 2001;Jang et al, 2010;Hong and Lee, 2013;Han et al, 2014). 또한 전통 제법을 통한 안료의 재현실험 연구와 전통 단청안료의 물리화학 적 특성 연구가 활성화 되면서 전통 단청안료의 재료 과 학적 특성 연구에 많은 진전이 있었다 (Park et al, 2015a;Park et al, 2015b;Kang et al, 2016;Kang et al, 2017;Kang and Jeong, 2019;Kang et al, 2020).…”