engleski

Investigation and Restoration 300 Years Old Leather Wall-Paper

In this paper we carried out tests on old leathers. These leathers were in fact old leather wallpaper dating to late 17. Century, from St. Peter and Paul's church in Sveti Petar u Šumi in Istria. Tests that were carried out were according to standard methods and parameters determined were moisture and fat content, pH and pH difference values. IR spectral analysis was done and microscopic snapshots of cryostatically prepared test samples were taken. At the same time tests were being done on a new piece of leather (chromium tanned calf/bovine leather). Based on the results of testing we made the conclusion on general state in which leather wallpaper was found (small moisture and fat content and stiffness). Based on the microscopic snapshots we made the conclusion on the kind of leather the wallpaper is made of. IR analysis showed us that the basic structure of the leather is after all these years for the most part still intact. Formal suggestion was made on the ways to preserve this leather wallpaper as a priceless cultural heritage.

leather wallpaper; restoration; histology

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