PURPOSE: To obtain a correction soln. for use in an electrophotographic offset master plate superior in printing resistance of an erased part, by using the soln. contg. a polymer consisting of (meth) acrylic acid, maleic acid, or itaconic acid monomer units, and aliphatic carboxylic acid, and aliphatic alcohol.
CONSTITUTION: A correction soln. contains (A) 0.2W30wt% polymer consisting mainly of monomer units of at least one of acrylic acid, methacrylic acid, maleic acid, and itaconic acid; (B) 0.2W30wt% aliphatic carboxylic acid; (C) 40W 95wt% aliphatic alcohol; (D) 1W50wt% water; and when needed, (E) 0.1W20wt% fluorine-contg. surfactant as main components. The component (A) is preferably in 10,000W500,000mol.wt. range, and in the case of copolymer, the content of monomer units of at least one of said acids is preferably ≥50mol% of the total monomer units.
OOSAWA SADAO
SAKAGUCHI SHINJI
