Method for making a lithographic printing plate support and precursor

A method for making a lithographic printing plate support including the steps of : - providing an aluminum support,- graining said support in a graining electrolyte solution,- treating the grained support in a desmut electrolyte solution containing hydrochloric acid by applying a direct current resu...

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Bibliographische Detailangaben
Hauptverfasser:	CAMPESTRINI PAOLA, FAES DIRK
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY 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 REMOVAL OF MATERIALS FROMOBJECTS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method for making a lithographic printing plate support including the steps of : - providing an aluminum support,- graining said support in a graining electrolyte solution,- treating the grained support in a desmut electrolyte solution containing hydrochloric acid by applying a direct current resulting in a charge density Q,characterized in that the pH of the desmut electrolyte solution is lessthan 1, and has a Q, which is at least 400C/dm2.