Revisão das entretelagens a frio por nap-bond

: o caso das virtudes da Santa Casa da Misericórdia do Porto

Abstract

The object of study of this dissertation is an oil painting on canvas – Virtues, of unknown date and author. It belongs to the collection of the Museu da Santa Casa da Misericórdia do Porto (MMIPO). Through the observation of the work, the cardinal and theological virtues are identified. The painting was studied technically and materially, through the collection of samples for the preparation of stratigraphic sections observed through optical and digital microscopy, identifying the respective number of layers, the sequence of overlap and the morphological characteristics of the pigment particles and fillers. The SEM-EDS analytical technique was performed, aiming to characterize the pigments, the fillers and their respective distribution in the layers. It was through the observation of the state of conservation of the work that the research theme of this case study was determined in view of its very fragile state visible through its support. In this case study, it was imperative to consider as an intervention methodology, the restoration of the physical-chemical stability of the work, being possible to recover the aesthetic question of the same in the face of problems such as tears and gaps, depriving the work of a cohesive reading. Considering the fragility of the support, a plan was carried out correcting all the deformations presented by it. As an essential factor, an interfacing was carried out, thus reinforcing the original canvas. A bibliographic survey of cold interlining systems by nap-bond was also carried out, being imperative to identify the adhesives and methods used, synthesizing an ideal methodology to be applied in this case study. In this way, specimens were prepared based on a support similar to that of the work, where an acrylic emulsion with cellulose ether was applied, in different thicknesses, through different meshes, verifying the ideal time for the union of the meshes and evaluating the effectiveness. of adhesion and reversibility.

Date of Award	3 May 2023
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Maria Aguiar (Supervisor) & Nuno Camarneiro (Co-Supervisor)