| 摘要 |
The present invention relates to a method for developing a lithographic printing plate precursor suitable for applying a positive-working lithographic printing plate precursor for infrared laser which is used for direct plate making. Especially, the present invention relates to a method for developing a lithographic printing plate precursor by using an alkaline developing solution containing a development inhibitor, said lithographic printing plate precursor comprising a substrate and an image forming layer thereon which comprises an alkali soluble resin, said method comprising the steps of: (1) predetermining a relationship ± between the concentration of said development inhibitor and the alkalinity of said alkaline developing solution under appropriate development conditions; (2) measuring both said concentration of said development inhibitor and said alkalinity of said alkaline developing solution at the time of developing said precursor; and (3) controlling said concentration of said development inhibitor and/or said alkalinity in order to satisfy said relationship ±. |
