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comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sediment prefilter, a separation filter, and a post treatment filter.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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< Quick-action rolling shutter door

> Surface protecting film for painted surfaces, comprising polyurethane-based pressure-sensitive composition

> Device and method for automatically inspecting objects traveling in an essentially monolayer flow

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