SLIP SHEET EXTRACTING METHOD OF PRINTING PLATE

PROBLEM TO BE SOLVED: To provide a slip sheet extracting method of a printing plate capable of certainly removing the inserting paper from a printing plate group having loaded printing plates sandwiching the inserting paper. SOLUTION: In the method of separating and removing the slip sheet while conveying the printing plates one by one from a loaded state of the plurality of printing plates cut like sheets while sandwiching the slip sheet, the uppermost printing plate in a loaded state of the printing plates is sucked by a suction conveying means for sucking and conveying them, and a slip sheet sucking means using an electrostatically sucking method is faced to and contacted with the printing plate and/or the slip sheet sucked by the suction conveying means.