Coatings in historical bowed string instruments made in Cremona (Italy) during 17th and 18th C. are often multi-layered systems, where organic binders are variously mixed with inorganic materials to enhance the sound and the aesthetic features of the objects. These materials were applied in superimposed coats in order to seal the wood porosity and prepare the surface to the application of the external varnish. In this work, we propose to employ photoluminescence (PL) micro-imaging, with hyperspectral resolution, and FTIR mapping to fully characterize the different layers of the multi-layered system, with a specific focus on the interface between the ground coat and the wood.
PL micro-imaging supported by FTIR mapping for the study of historical musical instruments
Albano Michela;Fiocco Giacomo;Malagodi Marco
2020
Abstract
Coatings in historical bowed string instruments made in Cremona (Italy) during 17th and 18th C. are often multi-layered systems, where organic binders are variously mixed with inorganic materials to enhance the sound and the aesthetic features of the objects. These materials were applied in superimposed coats in order to seal the wood porosity and prepare the surface to the application of the external varnish. In this work, we propose to employ photoluminescence (PL) micro-imaging, with hyperspectral resolution, and FTIR mapping to fully characterize the different layers of the multi-layered system, with a specific focus on the interface between the ground coat and the wood.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
