METHOD FOR MAKING A LITHOGRAPHIC PRINTING PLATE SUPPORT

A method for making a lithographic aluminum printing plate support comprising the steps of (i) graining said support by applying a charge density x; (ii) desmutting the grained support; (iii) graining the desmutted support by applying a charge density y; (iv) anodizing the support; characterized in...

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Bibliographische Detailangaben
Hauptverfasser:	CAMPESTRINI PAOLA, FAES DIRK
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 for making a lithographic aluminum printing plate support comprising the steps of (i) graining said support by applying a charge density x; (ii) desmutting the grained support; (iii) graining the desmutted support by applying a charge density y; (iv) anodizing the support; characterized in that during each graining step a current density varying between 80 and 250 A/dm2 is applied and that the ratio x/x+y varies between 0.3 and 0.7.