| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative photosensitive composition having high sensitivity, excellent white light safeness, excellent dot reproducibility in FM screen printing, and excellent small dot plate wear for small dots. <P>SOLUTION: A negative photosensitive planographic printing plate is characterized in that a photosensitive layer disposed on a support contains a photo-radical generator, a sensitizer showing absorption in a wavelength region from visible light to IR light and sensitizing the photo-radical generator, a compound having an ethylenic double bond, and a salt of an inorganic acid or an organic acid. <P>COPYRIGHT: (C)2009,JPO&INPIT |
