Fountain solution recycling system for commercial printers

Liquid purification or separation – Processes – Ion exchange or selective sorption

Reexamination Certificate

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C210S767000, C210S805000, C210S806000, C210S252000, C210S258000, C210S259000, C210S282000, C210S287000, C210S502100, C101S425000, C101S483000, C101S450100

Reexamination Certificate

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06908558

ABSTRACT:
A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sediment prefilter, a separation filter, and a posttreatment filter. The sediment prefilter preferably comprises a melt blown polypropylene filter; the separation filter preferably comprises a diatomaceous earth filter; and the post-treatment filter preferably comprises a zeolite filter.

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English language Abstract of JP 2001260310 A; Copyright 2001—Japanese Patent Office.

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