Deacidification of library materials

Details Deacidification of library materials Deacidification of library materials

B - Operations, Transporting

05

D

8/93.35

B05D 1/04 (2006.01) B05D 1/06 (2006.01) B41M 7/00 (2006.01) D21H 25/18 (2006.01)

Patent

CA 1235555

DEACIDIFICATION OF LIBRARY MATERIALS Abstract A method is provided of deacidifying books, imaged paper and other imaged material having a cellulose base comprising treating said material with suitable alkaline particles of basic metal oxide, hydroxide or salt dispersed in a gas or liquid in an amount and for a time sufficient to increase the pH of the material and provide an alkaline buffer without impairing the image thereon, said liquid consisting essentially of an inert halogenated hydro- carbon and a surfactant.

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