1. Chemical, morphological and mechanical study of the ageing of textile flax fibers from 17th/18th-century paintings on canvas.
- Author
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Melelli, Alessia, Roselli, Graziella, Proietti, Noemi, Bourmaud, Alain, Arnould, Olivier, Jamme, Frédéric, Beaugrand, Johnny, Migliori, Alice, Girolami, Giuseppe Di, Cinaglia, Paolo, and Santulli, Carlo
- Subjects
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TEXTILE fibers , *AGING , *SECOND harmonic generation , *ATOMIC force microscopy , *NUCLEAR magnetic resonance - Abstract
• Flax yarns from ancient italian canvases were compared to a modern yarn. • SEM and FTIR highlighted a past re-lining intervention, which resulted in a higher stiffness. • Changes in fibre mechanical behaviour and structure were evidenced through SHG and AFM. • NMR analysis gave information on changes into hemicellulose content with ageing. A variety of techniques were used to investigate flax yarns sampled from four selected Italian paintings on canvas dated between the 17th and 18th centuries and compare them with a modern flax yarn. The goal was to establish their state of preservation and highlight the critical issues thanks to a combined approach that used SEM, atomic force microscopy, nanoindentation, nuclear magnetic resonance, second harmonic generation imaging microscopy and FTIR spectroscopy. The condition of the flax fibres was assessed, and the results showed that two of the four canvases were in a generally good state of preservation, while the other two exhibited signs of biological attack and brittleness due to a previous re-lining intervention. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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