Method of manufacturing lithographic printing plate support

A method of manufacturing a lithographic printing plate support having a step of subjecting an aluminum plate to an electrochemical graining treatment in which alternating current is passed through the aluminum plate in an aqueous solution containing at least chloride ion and nitrate ion so that tot...

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Bibliographische Detailangaben
1. Verfasser:	NISHINO ATSUO,SAWADA HIROKAZU,UESUGI AKIO,HOTTA YOSHINORI
Format:	Patent
Sprache:	eng
Schlagworte:	LINING MACHINES MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE PERFORMING OPERATIONS PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM PRINTING PRINTING PLATES OR FOILS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method of manufacturing a lithographic printing plate support having a step of subjecting an aluminum plate to an electrochemical graining treatment in which alternating current is passed through the aluminum plate in an aqueous solution containing at least chloride ion and nitrate ion so that total amount of electricity when the aluminum plate serves as an anode is 100 to 300 C/dm 2 . By this method, a lithographic printing plate support which makes it possible to obtain a presensitized plate having both an excellent scumming resistance and a good press life by a single electrochemical graining treatment.