INO
CNR
vai_a_storia   vai_a_organizzazione   vai_a_sedi   vai_a_personale   Area Riservata
    English English Version  
 
 

Optical and spectroscopic tools for evaluating Er:YAG laser removal of shellac varnish

  Articoli su Riviste JCR/ISI  (anno 2015)

Autori:  Striova J., Salvadori B., Fontana R., Sansonetti A., Barucci M., Pampaloni E., Marconi E., Pezzati L., Colombini M

Affiliazione Autori:  National Institute of Optics/CNR, florence, Italy; Institute for Conservation and Valorization of Cultural Heritage/CNR, Sesto Fiorentino (FI) and Milan, Italy; University of Florence, Florence, Italy

Riassunto:  We report on tests to remove naturally and artificially aged shellac varnish by laser and traditional chemical cleaning from the substrates of mural paintings. Optical tools were used for the evaluation of cleaning processes, in particular laser microprofilometry to assess the changes in the surface morphology and time-domain confocal optical coherence tomography (OCT) to evaluate varnish thickness. The cleaning assessment was integrated with molecular characterization provided by portable Fourier transform infrared spectroscopy operating in reflectance mode, and colorimetric measurements. This complete analytical approach led to optimized laser-based cleaning tests at 1.9 and 2.6 J/cm(2) in the presence of isopropanol, which ensured controllable and safe partial removal of shellac varnish without alteration to the substrate morphology.

Rivista/Giornale:  STUDIES IN CONSERVATION
Volume n.:  60      Pagine da: S91  a: S96
DOI: 10.1179/0039363015Z.000000000213

*Impact Factor della Rivista: (2015) 0.323   *Citazioni: 6
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  19/05/2019

Riferimenti visionabili in IsiWeb of Knowledge: (solo per sottoscrittori)
Per visualizzare la scheda dell'articolo su IsiWeb: Clicca qui
Per visualizzare la scheda delle Citazioni dell'articolo su IsiWeb: Clicca qui

INO © Istituto Nazionale di Ottica - Largo Fermi 6, 50125 Firenze | Tel. 05523081 Fax 0552337755 - P.IVA 02118311006     P.E.C.    Info