Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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1. The wearing away by abrasion of the cloth covering of a book. The Library Binding Institute standards call for a cloth that will resist rub-off to the degree that the loss by abrasion will not exceed 8% of the weight of the fabric, when subjected to abrasion for 2 minutes by fine flint paper (2/0), on a disc 2 inches in diameter turning at 1,250 r.p.m. under 3 pounds pressure. 2. Printing ink which has rubbed onto the fingers from a printed sheet which has not dried sufficiently. See also: OFFSET (2) . See: RUB (1) . (34 )

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