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Cockling

The wavy planar distortion of a paper sheet caused by differential shrinkage between areas that dried at different rates, typically visible as an undulating surface pattern in documents that have been wetted and then air-dried without weight or humidity control.

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Related terms

Controlled air dryingFreeze-drying (vacuum lyophilisation)HPMC (hydroxypropyl methylcellulose)Ink-fixative pretreatmentMould remediationMultispectral imagingSaponin treatmentSequential examination protocolTideline

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