| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithographic printing method including a step capable of effectively removing an ink-receptive area of a print master and reusing a substrate in a following printing cycle, and a printing method capable of using a cleaning liquid containing a low content of organic volatile materials to avoid environmental pollution. SOLUTION: An ink-receptive area of a lithographic print master making a lithographic substrate of the print master reusable is removed, and the method preferably includes a step applying a cleaning liquid for the print master. The cleaning liquid is an aqueous emulsion of an organic compound, and also contains a compound shown by a formula (1), wherein X is OH, O- or a polymeric structure. |
