Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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bleeding

1. See: BLEED . 2. The removal of color from a paper or paper pulp due to the action of water or another liquid, which dissolves the coloring matter. 3. Discoloration of the surface of a paper due to the migration of residual oils. 4. The tendency of colored papers to stain contiguous leaves, usually due to the presence of water or moisture of some kind. 5. The diffusion of uncombined materials from the interior of leather to the grain surface where they may contaminate other materials or mar the appearance of the leather. This usually occurs at elevated temperatures and is commonly designated as staining. (17 , 72 , 325 , 363 )




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