A influência das massas de preenchimento no processo de reintegração cromática em pintura de cavalete : estudo analítico para carnações

• Autor(a) principal: Xavier, Alexandre Ferreira
• Data de Publicação: 2021
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10451/50212
• topic: Pintura de cavalete; Conservação e restauro; Preenchimento - massas; Reintegração cromática; Carnação; Cor - medição; Domínio/Área Científica::Humanidades::Artes

Losses on chromatic and preparation layers are a common problem on easel paintings. When the losses are on flesh zones, there is an additional factor of concern, since this is the region that captures the biggest attention of the art appreciator. The choice of the most appropriate filling mass formulation for this situation is a crucial step. The purpose of this investigation was to understand, how the constituent materials from filler influence chromatic reintegration and how the filling materials can be used to assist in color matching on skin areas. To reach this target, the study was directed to filling and retouching of flesh zones, using a painting as a study case, belonging to Faculdade de Belas-Artes da Universidade de Lisboa – FBAUL collection. It was selected and tested 29 filling formulations (between traditional, synthetic and ready-made formulas) being 21 not pigmented and 8 pigmented on laboratory, applied over a mockup model. The 21 not pigmented samples were covered by distinct inks, usually applied in chromatic reintegration. These samples were compared between each other, as well as the 8 pigmented fillers, on different levels of luminosity. Using non-destructive imaging and analytical techniques, were identified the differences that the tested fillers might present when interacting with the applied color. It is intended to document and understand these interactions so that the reintegration process could begin to be thought from the application of filling materials. Recognition of their influence is so far done empirically. This study is another contribution to the selection of fillers. Using color and reflectance measurement, the samples could be distinguished and classified between themselves according with their similarity, and according to a reference on the painting. After the choice of the best sample, an intervention was made at the painting, in order to confirm the methodology. Based on the results obtained with this research, a protocol was proposed, that could provide some guidelines for the conservators-restorers community, a contribution to studies on chromatic reintegration.