PRINTING PLATE PROCESS AND APPARATUS USING A LASER SCANNED SILVER NEGATIVE

This invention is directed to a process and apparatus for forming surfaces in relief such as a printing plate comprising employing a scanning laser to form an optical mask by forming opaque areas in an essentially transparent dry silver sheet, subjecting the exposed sheet to heat to develop the late...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KETLEY, ARTHUR D
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTROGRAPHY HOLOGRAPHY MACHINE TOOLS MATERIALS THEREFOR METAL-WORKING NOT OTHERWISE PROVIDED FOR ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	This invention is directed to a process and apparatus for forming surfaces in relief such as a printing plate comprising employing a scanning laser to form an optical mask by forming opaque areas in an essentially transparent dry silver sheet, subjecting the exposed sheet to heat to develop the latent image, the resulting optical mask being used for imaging on a photosensitive printing plate using a conventional non-coherent UV light source.