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AssigneeBattelle-Institue e.V.
InventorsRolf Eggersdorfer, Peter Schwerdt, Jurgen Wittekind
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Process and device for the nonpolluting mass deacidification of books and other printing and paper products with the predrying of these products by high-frequency radiation in a vacuum, then the application of a neutralization treatment with solutions for deacidification and the subsequent drying of solvents used also by high-frequency radiation in a vacuum. Preferably a single treatment chamber (1) for predrying, neutralizing and drying is used. The interior space of the treatment chamber can be exposed to high-frequency/microwave radiation of a generator (2), to which devices (4, 8, 9; 10 to 19 and 5) combined into a closed movable unit with chamber (1) are connected for the supply and removal of the solutions, for the evacuating of air and for the environmentally favorable separation of vapors when drying the accumulated exhaust air. The process and the device make possible a quick and efficient, as well as nonpolluting, mass deacidification with nearly complete recovery of the solvents.
A process for deacidification of at least one book or other paper product comprising the steps of:
Process for nonpolluting mass deacidification of at least on book and other paper product using a neutralization treatment with a solution for deacidification and subsequent drying of the organic solvent or solvents suitable for the treatment of the books and other paper products, characterized in that a predrying of the at least one book or other paper product for substantially removing the moisture content and the drying of the organic solvent or solvents after the neutralization treatment of the at least on book or other paper product are each performed in a vacuum with heating using microwave radiation.
Dependencies are inferred from the claim text.