Laboratory multi-technique study of Spanish decorated leather from the 12th to 14th centuries.

摘要: Abstract This work comprises an exhaustive study of Spanish decorative leathers dating from the 12th to 14th centuries. These paintings are considered a key example crucible artistic styles: Gothic, Islamic and Florentine Trecento. The goal this was use scientific information provided by number experimental techniques – namely EDX, micro-FTIR, micro-Raman micro-XRD assess wooden vault, leather preparation filling fibres. Another technique based on characterization pigments differentiation between original materials those added throughout its history. Gypsum layer extended over leather. A new stratum in further interventions with artwork. pictorial used during refurbishments have been identified. Original were: red lead, Mars red, lake, cinnabar, lapis lazuli, ochres, raw sienna, white lead charcoal black. Gilding also found. Pigments restoration barite, emerald green, rutile, anatase, cadmium lithopone, yellow, black orpiment.