| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive composition using a new photoinitiation system having high sensitivity to an oscillation wavelength of an inexpensive short-wavelength semiconductor laser and also having high sensitivity to various wavelengths of 350-450 nm, and useful as a photosensitive layer of a lithographic printing original plate for scanning exposure adapted for a CTP system excellent in work efficiency and economical efficiency. <P>SOLUTION: The photosensitive composition contains (A) a specific sensitizing dye, (B) an initiator compound capable of generating a radical, an acid or a base, and (C) a compound of which physical or chemical property is irreversibly changed by at least one of a radical, an acid and a base. <P>COPYRIGHT: (C)2007,JPO&INPIT |
