| 摘要 |
The present invention provides a method for producing a safe lithographic printing plate that exhibits an excellent developability and an excellent processing performance. The present invention also provides a method for producing a lithographic printing plate which enables single liquid processing and in which the obtained plate does not exhibit an impaired printing durability, does not exhibit a decline in printing durability even when the printing plate is stored after development before printing, and can inhibit the appearance of fingerprint scumming. A method of producing a lithographic printing plate is provided comprising: imagewise photoexposing a negative-working lithographic printing plate precursor that has an image-recording layer containing the (i), (ii), (iii), and (iv) described below on a hydrophilic support; and treating thereafter the imagewise-photoexposed negative-working lithographic printing plate precursor with an aqueous solution that has a pH of 8.5 to 10.8 and that contains a low molecular weight hydroxycarboxylic acid ion, a pH buffer, and a surfactant:
(i) sensitizing dye
(ii) polymerization initiator
(iii) an addition-polymerizable compound that has an ethylenically unsaturated double bond
(iv) binder polymer. |
