| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive composition using a new photoinitiation system, having high sensitivity to a wavelength of 350-450 nm and excellent in storage stability, and a lithographic printing original plate for a CTP system obtained by disposing such a photosensitive composition on a support and excellent in work efficiency, economical efficiency, and storage stability. <P>SOLUTION: The photosensitive composition contains (A) a sensitizing dye of a specific structure, (B) an initiator compound capable of generating a radical, an acid or a base, and (C) a polymerizable compound which reacts under at least one of a radical, an acid and a base. The negative lithographic printing original plate is obtained by disposing the photosensitive composition on a support. <P>COPYRIGHT: (C)2007,JPO&INPIT |
