Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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acid migration

The transfer of acid from a material containing acid to one containing less or no acid. This may occur either when the two materials are in contact with each other, or by vapor transfer from one material to nearby materials not actually in contact with it. Boards, endpapers, and protective tissues, as well as the paper covers of books and pamphlets, may contain acid and transfer it to otherwise low-acid or acid-free paper of the text. Also called "acid transfer." See also: BARRIER SHEET .




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Timestamp: Saturday, 19-Nov-2011 13:18:38 PST
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