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Fig. 2 | Heritage Science

Fig. 2

From: Combining phytate treatment and nanocellulose stabilization for mitigating iron gall ink damage in historic papers

Fig. 2

Variant 5 –CNF B. Sample of bad condition before (I) and after (II) mechanical stabilization by CNF and the chemical phytate treatment. By applying CNF before the chemical treatment, the large fracture and the smaller cracks and breakouts were (pre-)stabilized. No further mechanical damage occurred during the treatment. Rather than that, the good stabilization performance of the CNF is clearly visible at the large fracture

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