Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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parchment size

A resizing material made from scraps of parchment. It is prepared by boiling 21 grams of parchment scraps soaked in 2 1/2 liters of water for 45 minutes, or longer if a stronger size is required. It is used at a temperature of 35 to 45° C. for resizing archival papers that have been washed. An alkaline buffering agent is sometimes added to the size to provide an alkaline reserve in the paper.

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