Non-abrasive processing of printing plates

Details Non-abrasive processing of printing plates Non-abrasive processing of printing plates

1998-12-07

2000-02-08

Mathews, Alan A.

Photography

Fluid-treating apparatus

Fluid application to one side only of photographic medium

396612, 118244, 15102, G03D 506

Patent

active

060221526

ABSTRACT:
A printing plate processor for processing a printing plate having a substrate, a hydrophilic layer over the substrate and a processable ink-receiving layer over the hydrophilic layer includes a structure for receiving processing fluid and a roller partially submerged in the processing fluid. The roller is rotated so that processing fluid coats the roller and is carried by surface tension around the roller, and the printing plate is moved into a processing region with the rotating roller but spaced from the roller a distance selected so that the turbulence of the processing fluid engaging the ink-receiving layer causes portions of the ink-receiving layer to be removed by the processing fluid carried on the roller.

REFERENCES:
patent: 3315583 (1967-04-01), Hunt
patent: 3552293 (1971-01-01), Cuthbert
patent: 3626833 (1971-12-01), Koch
patent: 3702581 (1972-11-01), Speakman

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