Deacidification of library materials

Details Deacidification of library materials Deacidification of library materials

1984-01-25

1985-06-11

Beck, Shrive P.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427180, 427421, 427427, 4285371, 162160, 1621814, B05D 104, B05D 106

Patent

active

045228434

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.

REFERENCES:
patent: 2033452 (1936-03-01), Schierholtz
patent: 2864723 (1958-12-01), Fluck et al.
patent: 3472611 (1969-10-01), Langwell
patent: 3676055 (1972-07-01), Smith
patent: 3676182 (1972-07-01), Smith
patent: 3898356 (1975-08-01), Williams et al.
patent: 3969549 (1976-07-01), Williams et al.
patent: 4051276 (1977-09-01), Williams et al.

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