PRINTING PLATE HAVING RADIATION-SENSITIVE RECORDING LAYER ON ROLL-TREATED AND STAMPED ALUMINUM SUPPORT, AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a radiation-sensitive printing plate free from such disadvantage of a known material as introduction of a matting agent into an additional matting layer or a radiation-sensitive layer, by tightly fixing the radiation- sensitive layer in a support material for more pr...

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Bibliographische Detailangaben
Hauptverfasser:	HULTZSCH GUENTER, JOERG KLAUS
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES LINING MACHINES MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE METALLURGY PERFORMING OPERATIONS PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM PRINTING PRINTING PLATES OR FOILS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a radiation-sensitive printing plate free from such disadvantage of a known material as introduction of a matting agent into an additional matting layer or a radiation-sensitive layer, by tightly fixing the radiation- sensitive layer in a support material for more print runs than 150,000 prints and having a fine surface structure of a limited roughness in the support. SOLUTION: The radiation-sensitive printing plate comprises a roll-treated and stamped aluminum plate. The surface of the aluminum plate has a rough pit structure. A fine recess structure formed by electrochemically roughing is superposed on the rough pit structure. Each recess has a diameter of 0.1 to 5 μm. A mean roughness of the surface Ra of the stamped aluminum support is in a range of 0.63 to 0.83 μm.