[automatically translated] This paper shows the application of an innovative treatment for de-acidification and simultaneous reduction of paper put in place for a printed volume of the XVI sec., Containing the four Gospels in Arabic and Latin, owned by the Superintendence of Syracuse. It has been studied the conservation status of the paper by means of micro-invasive or non-invasive techniques such as pH monitoring, colorimetry, nuclear magnetic resonance spectroscopy and infrared spectroscopy. Furthermore, the ink used for the printing of the text and of the incisions was identified by Raman spectroscopy. The map shows an oxidative and acidic degradation. The present inks contain carbon black. The paper has been deacidified and reduced with a method proposed in letteratura1 and used by the Central Institute for Restoration and Conservation of Archival Heritage and Librario. This method has not proved successful. It has been proposed an innovative treatment which consists of immersing the paper in a solution of tert butyl amine borane in isopropanol containing hydroxide nanoparticles of calcio2. The treatment has provided good results and the comparison with the literature method, it was found that the proposed method is able to provide better results in terms of reduction of the oxidative degradation products. Bibliography 1Bicchieri M., P. Brusa, The bleaching of paper by reduction with the borane complex terzbutylamine, Restaurator, n. 18, pp. 1-11, 1997. 2Giorgi, R., Dei, L., Ceccato, M., Schettino, C. & Baglioni, P. Nanotechnologies for conservation of cultural heritage: paper and canvas deacidification. Langmuir, 18, pp. 8198 - 8203, 2002.
|Number of pages||0|
|Publication status||Published - 2014|