Damages caused by pressure sensitive tapes on paper artwork from the early 20th century

Abstract

The use of pressure sensitive tapes (PST) on paper documents and artworks represents one of the most complex issues for the conservation and restoration fields. This paper presents and discusses some examples of damages caused by the PST presence on a 20th century drawing collection from Fábrica Constância, nowadays belonging to the National Museum of Azulejo (MNAz). This work constitutes a first step towards a systematic identification and classification of damage caused by PST use on Fábrica Constância drawing’s collection