METHOD FOR MANUFACTURING ALUMINUM SUBSTRATE FOR LITHOGRAPHIC PRINTING PLATE MATERIAL, ALUMINUM SUBSTRATE FOR LITHOGRAPHIC PRINTING PLATE MATERIAL, LITHOGRAPHIC PRINTING PLATE MATERIAL AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a lithographic printing plate material which is in printing wear in a high resolution printing such as FM screening, and tone reproducibility, and is superior in small loss of papers until an appropriate printed matter is obtained when the printing is temporarily stopped and is started again, a substrate to provide it and its manufacturinf method, and an image forming method using the lithographic printing plate material.;SOLUTION: A method for manufacturing an aluminum substrate for the lithographic printing plate material having a process in which after one face of an aluminum sheet is roughened and anodized, it is then treated with a water solution containing polyvinyl phosphonic acid, is characterized in that the process treating with the water solution containing polyvinyl phosphonic acid is a process in which the face to be treated is treated by feeding the water solution containing polyvinyl phosphonic acid at 40-90C onto the face to be treated by a shower.;COPYRIGHT: (C)2007,JPO&INPIT