Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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cellulose acetate

An acetate salt of cellulose, produced fromCOTTON LINTERS and used in archival work: 1) as a photographic film base (often called "safety film" since it is not readily combustible); and 2) in conjunction with an adhesive, such as one of the polyvinyl resins, in laminating, heat sealing, etc. Cellulose acetate is manufactured in a wide variety of thicknesses, ranging from 0.001 to 0.005 inch, and is clear, hard and glossy. It has little tear strength and has almost the same HYGROSCOPICITY as cellulose itself; however, when moist, it does not stretch as much as paper. (31 , 34 , 81 , 303 )




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