Effect of White Clay- and Oyster Shell Powder-Ground Layering on the Painting Layer Stability of Traditional Dan-Cheong

Abstract

In the study, a deterioration test was conducted after making a test specimen by reenacting the “Ground layering” technique, one of the traditional Dan-Cheong techniques, with traditional materials such as White caly and oyster shell White. According to the results, the effect of Ground layering on the stability of Gachil layer and Painting layer of Dan-Cheong using traditional materials was analyzed. Surface state, color difference, and adhesion changes of the coating film before and after the deterioration test were quantified according to the evaluation criteria; by dividing the grades, the stability of Gachil layer and Painting layer was evaluated according to the application and Ground layering pigment to be based on apply Ground layering. As a result of the evaluation, fewer changes in surface state were observed in the specimen to which Ground layering was applied, oyster shell white Ground layering was more stable. In the Chromaticity change, there was less color difference change in the specimen to which Ground layering was applied, the oyster shell white was more stable. The change in adhesion was evaluated by dividing Powdery flaking and Plate flaking, and the specimen applied with Ground layering was more stable, and the oyster shell white was more stable. In conclusion, the Ground layering technique using traditional materials such as oyster shell white and white clay is believed to be helpful in improving the surface state, color difference, and adhesion of Gachil layer and Painting layer the in the traditional Dan-Cheong, and is more stable when applied using oyster shell white.