Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2067/47571
Titolo: A methodological approach to study the stability of selected watercolours for painting reintegration, through reflectance spectrophotometry, Fourier transform infrared spectroscopy and hyperspectral imaging
Autori: Pelosi, Claudia 
Capobianco, Giuseppe
Agresti, Giorgia
Bonifazi, Giuseppe
Morresi, Fabio
Rossi, Sara
Santamaria, Ulderico 
Serranti, Silvia
Rivista: SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 
Data pubblicazione: 2018
Abstract: 
The aim of this work is to investigate the stability to simulated solar radiation of some paintings samples through a new methodological approach adopting non-invasive spectroscopic techniques. In particular, commercial watercolours and iron oxide based pigments were used, these last ones being prepared for the experimental by gum Arabic in order to propose a possible substitute for traditional reintegration materials. Reflectance spectrophotometry in the visible range and Hyperspectral Imaging in the short wave infrared were chosen as non-invasive techniques for evaluation the stability to irradiation of the chosen pigments. These were studied before and after artificial ageing procedure performed in Solar Box chamber under controlled conditions. Data were treated and elaborated in order to evaluate the sensitivity of the chosen techniques in identifying the variations on paint layers, induced by photo-degradation, before they could be observed by eye. Furthermore a supervised classification method for monitoring the painted surface changes adopting a multivariate approach was successfully applied.
URI: http://hdl.handle.net/2067/47571
ISSN: 1386-1425
DOI: 10.1016/j.saa.2018.03.008
Diritti: Attribution-NonCommercial-ShareAlike 4.0 International
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