Preservation

Comparison of Drying Methods

Books bound with metal fasteners dried satisfactorily.  The air-dried volume showed the most pronounced distortion.  Because hard covers were lacking on these volumes, they could not be dried vertically, and pages were forced to flex across a fastener in the flat open format used for drying.

Slide 34
Comparison of Drying Methods
Kaplan/Ludwig 2003

All pamphlet-style volumes dried acceptably.  Dehumidification-dried samples show the greatest distortion. We cannot say whether the patented vacuum freeze-dry sample was damaged by the process’s compression plates, or its placement within a box.

Slide 35
Comparison of Drying Methods
Kaplan/Ludwig 2003

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