ELECTROLYTIC ETCHING METHOD FOR ALUMINUM PLATE FOR PRINTING PLATE

PURPOSE:To economize the rate of consumption of hydrochloric acid and org. materials contained in an etching soln. by treating the etching soln. used for electrolytic etching of Al plates with a strongly acidic cation exchange resin to remove Al ions therefrom and using said soln. cyclically. CONSTI...

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Bibliographische Detailangaben
Hauptverfasser:	YAHIRO YOSHITERU, ONOSE MASAYUKI, KIKUCHI YOSHIJI, SHIROSAKA YOSHIYUKI, YOSHIKAWA TOMOHIKO
Format:	Patent
Sprache:	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:	PURPOSE:To economize the rate of consumption of hydrochloric acid and org. materials contained in an etching soln. by treating the etching soln. used for electrolytic etching of Al plates with a strongly acidic cation exchange resin to remove Al ions therefrom and using said soln. cyclically. CONSTITUTION:An etching soln. contg. hydrochloric acid and org. materials is circulated between an etching tank and an ion exchange resin tank packed with a strongly acidic cation exchange resin to adsorb away the Al ions in the soln. formed by electrolytic etching of Al plates with the strongly acidic cation exchange resins and to liberate the hydrochloric acid immobilized in the Al ions, thereby maintaining the compsn. of the etching soln. at