METHOD FOR LITHOGRAPHIC PRINTING USING REUSABLE SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To provide a method for lithographic printing by which a reusable printing master with excellent cleaning properties can be obtained and a ghost image is not generated. SOLUTION: A method for removing ink receiving regions of a lithographic printing master by which the lithographic substrate of the printing master can be recycled is disclosed. It comprises treating a recycled substrate with a water solution with a pH<7 after a cleaning stage.