| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an on-press developing type lithographic printing-form original plate, the direct making-up of which can be obtained by scanning infrared laser based on digital signals developed by a computer or the like, the image visibility after exposure of which is favorable, at the on-press development, printing with which can be executed neither staining a printing machine with works-up nor staining dampening water nor passing through a develempment treatment process, and a lithographic printing method, in which printing is performed by employing the on-press developing type lithographic printing-form original plate. <P>SOLUTION: A layer containing an alterant having a specified functional group is provided in this on-press developing type lithographic printing-form original plate, and the lithographic printing method employing the original plate is provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
