Paper is a good indicator of the RH (relative humidity) it has been subjected to as ‘Capilliary’ action, (funky wavy lines) can illustrate that it has been in a damp environment and the lines are caused by dirt travelling across the surface of the paper. Other effects include ‘cockelling’ (the surface goes a bit bumpy) and ‘foxing’. (mould starts to grow) Books are of a particular concern as they can suffer from light damage aswell as all the issues regarding the paper pages. The best way to discover this is to look for warning signs of damage to the spine.

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About arlingtoncourtblog

Welcome to my blog! I've been keeping it to document my training as a Conservation Assistant for the National Trust at Dyrham Park. View all posts by arlingtoncourtblog

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