| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive lithographic printing plate which can decrease the replenishing amount for a developing solution, which can be stably processed without producing an insoluble substance even for long-term processing, which does not require the use of a slip sheet, which is free from contamination by deposition of PI ink or the like in the platemaking work, and which avoids weak points such as white voids and scratches resulting from the mechanical strength of an image recording layer in a positive lithographic printing original plate for IR laser. <P>SOLUTION: The photosensitive lithographic printing plate has a photosensitive layer on one surface of a supporting body and has a back coating layer on the back face. The back coating layer contains: a metal oxide obtained by hydrolysis or polymerization condensation of an organic metal or inorganic metal compound; colloidal silica sol; an organic polymer compound; and a specified polymer surfactant containing a fluoro-aliphatic group produced by a telomerization or oligomerization method. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
