| 摘要 |
PROBLEM TO BE SOLVED: To provide a processing apparatus for a planographic printing plate, which will give not adverse influence on an automatic platemaking machine, caused by elution failures in the end-face portion of a photosensitive material due to pressure fog upon development, even in a planographic printing plate which requires a chamfering process, and can carry out stable development processing over a long time, without the adherence of dirt on the surface of a conveying roll. SOLUTION: The processing apparatus is constituted so that a planographic printing plate, subjected to chamfering on its end face, is immersed in at least a developing liquid, while conveying the plate held between rolls to dissolve and remove a non-image part; and then the plate is subjected to rinse water treatment, wherein among the conveying rolls in the rinse water processing section, the surface of the roll at least in the upper side at the entrance has water-repellence and oil-repellence properties. COPYRIGHT: (C)2007,JPO&INPIT |
