전통소재 단청안료 혼합에 따른 대체 방안 연구: 자황과 연백을 대상으로

Abstract

Among the traditional dancheong pigments, orpiment and lead white have problems suchas toxic properties, unstable supply and demand, and low color stability. Therefore, alternative methodsare needed. This study attempted to solve these problems by reducing the amount of orpiment andlead white by mixing other pigments. The specimens were prepared by mixing orpiment with twotypes of yellow ochre and one each of oyster shell white and white clay. Lead white was mixed withthree types of oyster shell white and white clay. Surface changes, chromaticity, and peelingcharacteristics were observed. When orpiment was mixed with white pigments, the mixture showeda relatively similar to the orpiment color, compared to when mixed with yellow ochre. When orpimentinside the film was discolored, however, the yellow index was reduced by 20 at most, showing ahigh color difference value. When orpiment was mixed with yellow ochre (5:5), the mixture wasobserved to have relatively high chromatic stability and durability, compared to when orpiment wassolely used. Until the lowest mixing ratio (2:8), showing a similar color to the lead white. Particularly,the more similar the brightness value of white pigments used was to that of lead white, the closerthe mixtures became to the chromatic range of lead white. But they showed different aspects ofdiscoloration and peeling, depending on the mixing ratio of media.