| 摘要 |
PROBLEM TO BE SOLVED: To prevent precipitation of the component of a photosensitive layer in a desensitizing bath or a rinsing bath even when a lithographic printing plate is treated for a long time, and to supply good printed products. SOLUTION: This liquid contains copolymers containing monomer units having sulfonic acid groups as the structural component. The liquid contains, as a structural component, copolymers containing (a) a monomer unit having sulfonic acid groups, and (b) a monomer unit selected from alkylacrylates having 1 to 10 carbon atoms in the alkyl residue and alkylmethacrylates having 4 to 10 carbon atoms in the alkyl residue. |
