Bright lights: disclosures from the optical, spectroscopic and chromatographic characterization of a 19th century Portuguese sedan chair
| Autor: | Nuno M. Neves, Vanessa Rocha, Catarina Miguel, Maria das Dores Macias, Beatriz Gonçalves, Inês Faria, Ana Raquel Bispo, António Santos Silva, Nádia Mendes Silva, Diogo Luís Marques |
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| Rok vydání: | 2016 |
| Předmět: |
Pigments
Cochineal Espirito santo media_common.quotation_subject education Conservation 01 natural sciences lcsh:Social Sciences Sedan chair Brazilwood 0601 history and archaeology lcsh:CC1-960 Dyes Spectroscopy media_common Chromatography 060102 archaeology biology 010401 analytical chemistry Museology 06 humanities and the arts Art Animal glue biology.organism_classification language.human_language 0104 chemical sciences Characterization (materials science) lcsh:H language lcsh:Archaeology Portuguese |
| Zdroj: | Conservar Património, Vol 23, Pp 25-34 (2016) |
| ISSN: | 2182-9942 1646-043X |
| DOI: | 10.14568/cp2016001 |
| Popis: | The Fundação Ricardo Espírito Santo Silva (FRESS) as the mission of defend, train, study, develop and implement Portuguese Fine Arts in Portugal. This paper reflects the process of Conservation-Restoration training, where students apply the most recent analytical techniques to the characterization of artwork towards enabling and supporting conservation intervention. In this study, the materials used to produce a 19th century sedan chair were characterised by optical microscopy, spectroscopic (SEM-EDS, -Raman and FTIR-imaging) and chromatographic (HPLC-DAD/MS) techniques. The use of natural and synthetic dyes was identified in textiles found inside the chair, including cochineal, brazilwood and fuchsine. Several paint layers with different colours and compounds, such as barite, calcium carbonate, lead white, hematite and Prussian blue, were identified in the external painted wood surface of the chair. The variety of identified materials, interspersed between layers of animal glue, reflects the different interventions that took place on the chair over time, supporting the intervention strategies reported/prescribed for the conservation-restoration procedure. |
| Databáze: | OpenAIRE |
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