| 摘要 |
PROBLEM TO BE SOLVED: To prevent stain from occurring on a printed matter by a method wherein on a supporting body, a layer containing a polymer compound having a sulfonic group on the side chain, wherein spaces between chains are crosslinked, is provided. SOLUTION: For this lithographic printing original plate, on a supporting body, a layer containing a polymer compound having a sulfonic group on the side chain, wherein spaces between chains are crosslinked, is provided. The polymer compound having a sulfonic group on the side chain, wherein spaces between chains are crosslinked, may be formed by a reaction between a polymer compound having a group which can react with a sulfonic group or a sulfonic acid precursor and a crosslinking agent, and a corsslinking agent. Also, the layer containing the polymer compound having a sulfonic group on the side chain, wherein spaces between chains are crosslinked, preferably contains heat- resistant particles a metal oxide such as iron oxide, zinc oxide and zirconia, and a silicon-containing oxide or the like such as silicic acid anhydride, silicic hydride calcium, in addition. |
