Design of a suitable cleaning procedure for the tarnished silver elements of the reliquary bust of Santa Vittoria, Diocesan Museum of Agrigento, Sicily

Ricotta, Nicola (Opificio delle Pietre Dure Florence, Italy) ; Degrigny, Christian (Haute Ecole Arc Conservation-Restauration, HES-SO University of Applied Sciences and arts Western Switzerland) ; Cagnini, Andrea (Opificio delle Pietre Dure Florence, Italy) ; Ortolani, Cinzia (Opificio delle Pietre Dure Florence, Italy)

The restoration of the Santa Vittoria reliquary conserved in the Diocesan Museum of Agrigento in Sicily at the Opificio delle Pietre Dure (OPD), Florence, was an opportunity to test various cleaning processes on its tarnished bust made of partly gilded silver plates. The mechanical/chemical protocols used at the OPD – calcium carbonate (CaCO3) or sodium bicarbonate (NaHCO3), and, more recently, erasers – were compared to local electrolytic cleaning techniques recently developed by the Conservation Research Unit at Haute Ecole Arc (UR-Arc CR), Neuchâtel, Switzerland. This article presents the different cleaning processes, describes the tests carried out and shows the results which led to the selection of electrolytic cleaning. As electrolytic treatments are new to OPD, the way in which these technologies have been implemented is discussed.


Mots-clés:
Type de conférence:
full paper
Faculté:
Design et Arts visuels
Filière:
Conservation
Ecole:
HE-Arc CR
Institut:
Unité de recherche en Conservation-restauration de la Haute Ecole Arc - UR-ARC CR
Classification:
Conservation - Restauration
Adresse bibliogr.:
Neuchâtel, Switzerland, 2-6 september 2019
Date:
2019-09
Neuchâtel, Switzerland
2-6 september 2019
Pagination:
4
Veröffentlicht in:
Metal 2019, 9th interim meeting of the ICOM-CC metals working group
Le document apparaît dans:

Note: The status of this file is: restricted


 Datensatz erzeugt am 2020-04-01, letzte Änderung am 2020-04-03

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