Deacidification of library materials
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United States of America Patent
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-
Jun 11, 1985
Grant Date -
N/A
app pub date -
Jan 25, 1984
filing date -
Jan 25, 1984
priority date (Note) -
Expired
status (Latency Note)
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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 hydrocarbon and a surfactant.
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