Method and apparatus for refreshment and reuse of loaded...

Details Method and apparatus for refreshment and reuse of loaded... Method and apparatus for refreshment and reuse of loaded...

2005-02-15

2005-02-15

Le, Hoa Van (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Regenerating image processing composition

Developer

Reexamination Certificate

active

06855487

ABSTRACT:
A method and an apparatus for the refreshment and reuse of loaded developers used in lithographic printing are disclosed. The pH of an aqueous, essentially silicate-free loaded developer is reduced to below about 11. Insoluble material is separated, and the pH increased to about 12.0 to 14.0 to produce a refreshed developer. The refreshed developer may be used to develop additional exposed printing plate precursors.

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