| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive composition which is useful as a photosensitive layer of an original plate of a planographic printing plate for scanning and exposure adaptable to a CTP system superior in workability and economy, and which uses a new photoinitiation system highly sensitive to the emission wavelength of an inexpensive shortwave semiconductor laser, and to the wide wavelength of 350-450 nm. <P>SOLUTION: The photosensitive composition comprises (A) a sensitizing dye of a specified structure, (B) an initiator compound capable of generating a radical, an acid or a base, and (C) a compound capable of changing irreversibly its physical or chemical property with at least one of a radical, an acid and a base. <P>COPYRIGHT: (C)2007,JPO&INPIT |
