MANUFACTURING METHOD OF ALUMINUM SUPPORT FOR LITHOGRAPHIC PRINTING FORM

摘要

PROBLEM TO BE SOLVED: To provide the manufacturing method of the aluminum support for a lithographic printing form, by which the lithographic printing form excellent in stain resistance and, at the same time, demonstrating excellent plate wear is obtained and with which the emission amount of waste water itself and the amount of sludge produced at waste water treatment can be reduced to reduce environmental pollution.;SOLUTION: In order to manufacture the aluminum support for the lithographic printing form, an aluminum plate is roughened and anodized and further sealing treated with an aqueous solution including an inorganic fluorine compound with the concentration of at least 0.5 g/L and not more than 4.0 g/L and a phosphate compound with the concentration of at least 1 g/L and below 10 g/L.;COPYRIGHT: (C)2005,JPO&NCIPI