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  • Title: Reconstructing the colour palette of the Konstantinos Parthenis' burnt paintings.
    Author: Antonopoulou-Athera N, Chatzitheodoridis E, Terlixi A, Doulgerides M, Serafetinides AA.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2018 Aug 05; 201():315-327. PubMed ID: 29763825.
    Abstract:
    This case study focuses on the reconstruction of the colour palette and the possibility of laser cleaning of burnt paintings. The paintings ORPHEUS IN THE UNDERWORLD and CONCORDIA, composed by the Greek artist Konstantinos Parthenis (1878-1967), have been severely damaged by fire. The colour palette of Parthenis is thoroughly investigated for the first time, and to perform this, a multi-analytical spectroscopic approach was employed. Non-destructive in situ analysis was performed on multiple areas of the paintings by portable XRF. SEM-EDS and Raman, supported by reflected visible light optical microscopy, and ultraviolet light microscopy, as well as structural XRD and molecular FTIR were performed for identifying the pigments, the binder and the substrate of the paintings. This work also unveiled new aspects of the painting technique used by the artist, such as the uncommon use of multiple pigments of red hue in the upper paint layers, comparatively with the rest of Parthenis' paintings. Molecular spectroscopic techniques (i.e., Raman and FTIR) were effective in identifying pigments like chrome yellow (crocoite mineral), chrome orange (phoenicochroite mineral) and viridian green (hydrated chromium oxide). The spectroscopic analyses were also essential in the laser cleaning restoration because of the detection of pigments (i.e., lead white, vermilion etc.) prone to phase transformations due to photothermal and/or photochemical effects. Our investigation establishes the basis on the application of non-conventional cleaning methods on damaged paintings, such as laser irradiation, in order to remove the damaged layer and/or the superficial accretions, while preserving the hues of the original painting.
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