Deacidification process

Details Deacidification process Deacidification process

1991-05-07

1992-08-11

Lusignan, Michael

Coating processes

Immersion or partial immersion

Cellulosic base

422 40, 427296, 427377, B05D 118

Patent

active

051377608

ABSTRACT:
This invention relates to a process for treating a printed cellulosic article for inhibiting acid promoted deterioration thereof comprising providing in a pressure vessel containing said article, a transport medium containing carbon dioxide, and base material dispersed in said medium for transport to said article said vessel being pressurized with said carbon dioxide to between about 650 and about 1200 psi and maintained for a sufficient treatment period to cause substantial pervasion of said base material in said article, and separating said medium from said article.

REFERENCES:
patent: 3676182 (1972-07-01), Smith
patent: 4318963 (1982-03-01), Smith

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