| abstract |
(57) [Summary] [Structure] A concentrated fountain solution composition for lithographic printing containing a cellulose derivative, a pH buffer, propylene glycol monoalkyl ether, 3-methoxybutanol and tetraphenylphosphonium bromide. [Effect] The printability is extremely good, and the image region of the printing plate is not damaged even though the high boiling point solvent is used. In addition, the stability of the liquid over time is excellent, and it satisfies legal regulations such as the Fire Service Law and the Occupational Safety and Health Law, so that a stable printed matter can be obtained. |