| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for suppressing a rise in the temperature of lithographic printing caused by heat generation of a light source in a post-exposure as an effective means in a CTP system. SOLUTION: In the method of manufacturing lithographic printing plate, photo-polymerizable and photosensitive lithographic printing plate including (a) a compound having an ethylenic unsaturated bond of being addition- polymerizable, and (b) a photo-polymerizable and photosensitive layer containing a series of agents for starting photo-polymerization, is exposed with a laser light to form image, and then developed, and furthermore, post-exposed, a means to suppress a rise in the temperature of the photo-polymerizable and photosensitive lithographic printing plate is used when post-exposed. |
