PREPARATION METHOD OF PRINTING PLATE MATERIAL AND PRINTING PLATE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a printing plate material having an excellent printability and a high anti-abrasion property and a method for preparing such a material.

SOLUTION: The method for preparing the printing plate material the substrate of which is overlaid with a hydrophilic layer comprises steps of coating the substrate with an aqueous coating solution for the hydrophilic layer with the coating solution containing colloid of spherical metal oxide particles and having a pH value of 8 to 12 to obtain a coating layer and heating the printing plate material so that a surface temperature of a coated layer is raised to 130-300°C so as to dry the coating layer.

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