ORIGINAL PLATE FOR LITHOGRAPHIC PRINTING PLATE AND MANUFACTURING METHOD OF LITHOGRAPHIC PRINTING PLATE USING THE SAME

PROBLEM TO BE SOLVED: To provide an original plate for a lithographic printing plate capable of forming highly precise ink images when hitting the original plate for the lithographic printing plate with the droplets of ink and satisfying antifouring property during printing and providing excellent printing durability to the images obtained by curing the ink and a manufacturing method of lithographic printing plate using the same capable of forming the images of high resolution and excellent in printing durability of image portions and antifouling property of non-image portions. SOLUTION: The original plate for lithographic printing plate has an ink receiving layer containing an organic fluorine compound containing 5 or more of fluorine atoms per one molecule, a hydrophilic resin, and 10 to 70 wt.% an alkylene oxy containing compound having at least one structure selected from an ethylene oxy structure, a propylene oxy structure based on the total weight of the ink receiving layer on an aluminum support body having an anodized oxide layer or on a support body having a hydrophilic layer having a sol-gel structure. COPYRIGHT: (C)2009,JPO&INPIT