Fat-desensitizing composition for litho printing plates

Details Fat-desensitizing composition for litho printing plates Fat-desensitizing composition for litho printing plates

B - Operations, Transporting

41

N

6/6

B41N 3/08 (2006.01)

Patent

CA 1284003

FAT-DESENSITIZING COMPOSITION FOR LITHO PRINTING PLATES ABSTRACT OF THE DISCLOSURE A composition useful for rapidly and safely effecting a fat-desensitizing treatment for litho printing plates with a high efficiency, and for providing a hydrophilic membrane having a high durability in printing operations on the surfaces of the litho printing plates, comprises (A) a phytic acid or its functional derivative; (B) a metal salt of the formula MX1 , wherein M = a divalent metal cation, X = monovalent or divalent anion and 1 = 1 or 2; (C) a glycol compound of the formula, R1 - O ? CnH2nO ?? R2 , R1 and R2 = -H, -COCH3, -CH2OC2H5 , -C2H5OC4H7, Image , or C1-4 alkyl, n = 1, 2 or 3, and m = 1, 2, 3 or 4; and (D) a polyethylene- glycol.

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