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Títol:	A study of the effects of PVAC on works of art on paper and wood: pH and colour change
Autor/a:	Campo, Gema; Nualart Torroja, Anna; Oriola Folch, Marta; Ruiz Recasens, Cristina
Altres autors:	Universitat de Barcelona
Abstract:	This paper presents the preliminary findings of pH and colour measurements carried out on artworks on paperand on wood that had been treated with a poly(vinyl acetate) (PVAC) based adhesive in the 1980s. In both cases, areas treated with PVAC proved to be less acidic than untreated areas. Contrary to expectations, the conservation treatments have not, as yet, increased acidity levels in the objects under study. Colour measurements of the works on paper showed that those that had been backed with a cotton fabric using a mixture of methylcellulose and PVAC were less yellow than those from the same print run that had not been backed. This finding suggests that the backing somehow prevented the natural degradation of the support. In view of these preliminary results, further research is clearly needed. This study forms part of a broader ongoing project to assess the role of PVAC in the conservation of a range of cultural assets.
Data de publicació:	27-01-2012
Matèries:	-Conservació i restauració d'obres d'art -Cartells -Pintura (Producte químic) -Adhesius -Color -Conservation and restoration of art objects -Paint -Posters -Adhesives -Color
Drets:	(c) Campo et al., 2009
Tipus de document:	Capítol o part de llibre
Publicat per:	Archetype Publication Ltd. & The British Museum
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