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http://dx.doi.org/10.12654/JCS.2018.34.2.02

Discoloration Effects of LEDs on Painting Binder Materials  

Kim, Ji Won (Department of Heritage Conservation and Restoration, Graduate School of Cultural Heritage, Korea National University of Cultural Heritage)
Lee, Yu Jung (Department of Cultural Heritage Conservation Science, Korea National University of Cultural Heritage)
Kim, Kyu Lin (Southern Institute, Korea Institute of Lighting Technology)
Lee, Hwa Soo (Department of Wood and Paper Science, Chungbuk National University)
Kang, Dai Ill (Department of Cultural Heritage Conservation Science, Korea National University of Cultural Heritage)
Publication Information
Journal of Conservation Science / v.34, no.2, 2018 , pp. 77-85 More about this Journal
Abstract
In order to understand the influence of light artifact discoloration, priority must be given to the reaction characteristics of the light the materials constituting the product. In this study, we focus on two representative medium, animal glue and linseed oil which constitute the colored layer of the painting relics. This study is based on an accelerated degradation test using two types of light emitting diods (LEDs) with different wavelength characteristics. In the experiments, discoloration appeared markedly in the animal glue and linseed oil under accelerated aging test conditions using Blue LED. Among the two types of LEDs, the degree of discoloration of the material was much higher with the Blue LED having the total radiation flux (mW). This indicates that the discoloration of painting artifacts such as animal glue and linseed oil is more significantly influenced by the total radiation flux (mW) of the light source than the total luminous flux (lm).
Keywords
LED; Painting medium; Animal glue; Linseed oil; Discoloration;
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