Determination of mechanical properties of historical paper based on NIR spectroscopy and chemometrics – a new instrument |
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| Authors: | D Lichtblau M Strli&#; T Trafela J Kolar and M Anders |
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| Institution: | (1) Zentrum für Bucherhaltung, Mommsenstrasse 7, 04329 Leipzig, Germany;(2) University College London, Centre for Sustainable Heritage, The Bartlett School of Graduate Studies (Torrington Place site), Gower Street, London, WCIE 6BT, UK;(3) Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, 1000 Ljubljana, Slovenia;(4) National and University Library, Turjaška 1, 1000 Ljubljana, Slovenia |
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| Abstract: | Due to sampling restrictions in the analysis of cultural heritage materials, non-destructive approaches are intensively sought
for. While NIR spectrometry has rarely been used for this purpose due to the complexity of the spectra, chemometric methods
can be used to extract the necessary information. For the purpose of determination of mechanical properties of historical
paper, partial least squares approach was used and it is shown that tensile strength, and tensile strength after folding,
can be estimated based on NIR spectra. As the mechanical properties of paper-based objects define their accessibility, a new
dispersive portable instrument was built, which will enable us to rapidly survey the condition of library and archival collections.
PACS 82.80.Gk; 28.52.Fa; 28.52.Lf |
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