ALUMINUM SHEET SUPPORT FOR PHOTOSENSITIVE LITHOGRAPHIC PLATE MATERIAL, MANUFACTURING METHOD THEREOF AND PHOTOSENSITIVE LITHOGRAPHIC PLATE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a photosensitive lithographic plate material excellent in plate wear resistance and stain-preventing properties in printing, as well as a support for providing the same and a platemaking method thereof.

SOLUTION: After the support is subjected to surface-roughening and anodizing treatments, it is treated with a water solution containing a polyvinyl phosphonic acid and then dried at 150-230°C, in this manufacturing method of the aluminum sheet support for the photosensitive lithographic plate material.

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