Rediscovering the materials of Arraiolos tapestries: fibre and mordant analysis by SEM-EDX and μ-PIXE

Abstract

Arraiolos tapestries are probably one of the richest artistic Portuguese expressions in terms of textile heritage. It is difficult to date the beginning of the production of rugs in Arraiolos (Southern Portugal), but they were already produced in the late 1600’s as they are listed in the inventories of Portuguese aristocratic households in the beginning of the 18th century. Sensitive detection techniques play an increasing role in the chemical investigation of historical objects since the knowledge derived from the chemical composition of materials is of upmost importance for textile conservation and restoration purposes.In this work we present results of microanalysis by SEM-EDS and μ-PIXE of fibres from Arraiolos rugs (Rug nr. 88, from the 17th century) of the Portuguese Ancient Art National Museum collection (MNAA).