Method and device for eliminating peeled-off surface portions of an ink-repellent layer of an offset printing plate

A method and a device for eliminating peeled-off surface portions of an ink-repellent layer of an offset printing plate. With known plate-cylinder washing devices such peeled-off surface portions of an ink-repellent layer cannot be eliminated from the offset printing plate completely. The method and...

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Bibliographische Detailangaben
Hauptverfasser:	ANDREAS SCHORPP, ANDREAS DETMERS, BERNHARD MECHLER
Format:	Patent
Sprache:	eng
Schlagworte:	COLOUR PRINTING LINING MACHINES PERFORMING OPERATIONS PRINTING PRINTING MACHINES OR PRESSES PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method and a device for eliminating peeled-off surface portions of an ink-repellent layer of an offset printing plate. With known plate-cylinder washing devices such peeled-off surface portions of an ink-repellent layer cannot be eliminated from the offset printing plate completely. The method and device according to the present invention enables the complete elimination of said peeled-off surface portions. Using the surface of non-woven fabric mounted on a shaft in spiral-like manner, the ink-repellent layer is brushed off without any fluid added. The method and device are used in connection with the direct imaging of offset printing plates in the dry-offset process.