| 摘要 |
PROBLEM TO BE SOLVED: To provide a printing method which reduces the spoilage at the start of printing while plate wearability is ensured when an on press developing type printing plate material is employed, enables the stable and favorble on-press developabilities, and develops no poor image formtion even when exposure is executed on a printing machine. SOLUTION: In the platemaking printing method of the on press developing type lithographic printing plate 31 having layer allowing to be image-wise removable with a humidifying liquid or an ink on the printing machine, the layer allowing to be removable is removed by providing a liquid-absorbent sheet 21 on the surface of a blanket 2 before the start of printing, and printing is started after the disengagingly separation of the liquid-absorbent sheet 21. COPYRIGHT: (C)2006,JPO&NCIPI
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