LI Qi ¹, LV Shuling ², HE Shan ¹, ZHOU Hua ¹

(1. Beijing Union University, Beijing 100191, China; 2. Capital Museum of China, Beijing 100045, China)

Abstract: Minimized intervention is one of the basic principles in the protection and restoration of cultural relics, in order to preserve their authenticity and integrity to the greatest extent. For ancient ceramic restoration, filling and coloring are two processes with clear boundaries. For adhering to the principle of minimum intervention, the authors attempted to combine the filling and coloring processes and conducted materials selection. Taking Jiajing mackerel VAT algal grain in Capital Museum as an example, a series of screening experiments have been carried out. Based on the degree of gloss, color, hardness and ultraviolet radiation aging testing, it is finally confirmed that the most suitable filling material for the large cylinder is talcum powder, with the colored packing ratios of AAA glue, talcum powder, green mineral pigment to be 400︰200︰1. The use of the colored complementary materials and processes can not only shorten the repair time duration but also realize the minimum intervention. As a result, the glaze of the intact part of the ceramics in the painting process was not covered, thus achieving the minimum intervention in ancient ceramic restoration and improving the scientific selection of ancient ceramic restoration materials.
Key words: colored complementary materials; protection and restoration of ancient ceramics; minimum intervention; talcum powder; albacore algae lines