| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light sensitive planographic printing plate material suitable for exposure with laser light of which the emission wavelength is 350-450 nm, having high sensitivity and excellent storage stability, less liable to generate sludge in development, therefore ensuring less ink stain of a non-image area, and having excellent printing durability, by using a polyfunctional heterocyclic mercapto compound. <P>SOLUTION: The light sensitive planographic printing plate material contains a polymerization initiator, a polymerizable ethylenic double bond-containing compound, a sensitizing dye, a compound represented in general formula 1 and a polymeric binder on a support. <P>COPYRIGHT: (C)2008,JPO&INPIT |
