Finnegan, Henderson, Farabow, Garrett & Dunner
Method of developing presensitized offset printing plates and developing solution used in that method
 A developing solution of an imagewise exposed, presensitized offset printing plate is disclosed. The developing solution has a pH of at least 12.5, and contains a low content of a silicate in an amount of up to 1.0 wt % as SiO.sub.2, a surfactant in an amount of 0.01 to 10 wt %, an aromatic carboxylic acid in an amount of 0.1 to 10 wt %, and an amine compound represented by the following general formula (I) in an amount of 0.1 to 10 wt %: EQU R.sub.1 --N(R.sub.2)--J--OH (I) wherein R.sub.1 and R.sub.2 are each independently a hydrogen atom, a group --C.sub.2 H.sub.4 OH or a group --C.sub.3 H.sub.6 OH; and J is a group --C.sub.2 H.sub.4 -- or --C.sub.3 H.sub.6 --. 
Konica Corporation
G
G03F
inventional
Shinya Kazuhiro Masafumi Akira
Watanabe Shimura Uehara Nogami