Consistent Characterization of Color Degradation Due to Artificial Aging Procedures at Popular Pigments of Byzantine Iconography

The degradation effects of artificial aging on the “true” pigment color Byzantine iconography are thoroughly investigated in this work. For purpose, a multi-material palette is fabricated, consisting various popular egg-tempera pigments, while original recipes from literature utilized order to mimic genuine art painters. Then, procedures appropriately employed simulate environmental fluctuations historical buildings, such as churches. A total four time steps investigated, including initial condition, and pigments’ spectra ultraviolet/visible (UV/Vis) area acquired diffuse reflectance mode at each individual step. Moreover, characterization procedure realized via quantification lightness saturation by means measured UV/Vis spectrum. main objectives work determine stability, type degradation, generally response through studied pigments. extracted results indicate that couple pigments suffer severe majority present moderate darkening or discoloration.