| abstract |
A replenishing method of an alkaline processing liquidn(planographic printing plate developer) for developing a planographicnprinting plate making material made of a support having a positive typenphotosensitive layer for infrared laser, containing (A) a water-insolublenand alkali-soluble polymer material and (B) a compound generatingnheat upon absorption of light, formed thereon, wherein an aqueousnsolution of a surface active agent is added to the alkaline processingnliquid every time when the development of a predetermined amount ofnthe planographic printing plate making material is carried out, isndisclosed. An alkaline agent can be added to the alkaline processingnliquid independently from the aqueous solution of the surface activenagent. |