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http://dx.doi.org/10.12654/JCS.2020.36.5.01

A Study on Ceramic Restoration Methods with Full Color 3D Printing  

Shin, Woo Cheol (Naju National Research Institute of Cultural Heritage)
Wi, Koang Chul (Department of Cultural Heritage Conservation, Hanseo University)
Publication Information
Journal of Conservation Science / v.36, no.5, 2020 , pp. 306-314 More about this Journal
Abstract
The use of synthetic resins in ceramic restoration poses several challenges, including aging and potential damage to artifacts, which has raised the need to investigate new materials and restoration methods. This study set out to incorporate full color 3D printing into the 3D digital technology-based restoration method, an emerging approach currently being researched, and to print out missing parts with color information. After examining material physical properties with an experiment, the investigator printed out missing parts from a white porcelain vessel and grayish-blue-powdered celadon plate and compared them in chromaticity and brilliance. The experimental results show that the outputs had comparable tensile strength to the original restoration materials, whereas the recorded compressive strength was approximately 1.4~2 times higher than that of the original restoration materials. According to the NIST table of color difference values, the white porcelain vessel was visible at ΔE*ab 1.55, and the grayish-blue-powdered celadon plate was perceivable at 3.34. Even though it was impossible to express the colors accurately owing to printer limitations, this non-contact approach reduced the possibility of damage to the minimum. In conclusion, it can be applied to objects with a high chance of damage or generate display effects through purposeful color differentiation in missing parts.
Keywords
Restoration of pottery artifacts; Three-dimensional digital technology; Digital restoration; Reverse engineering; Full color 3D printer;
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