Printing plate protectant

Details Printing plate protectant Printing plate protectant

G - Physics

03

F

G03F 7/40 (2006.01) G03F 7/32 (2006.01)

Patent

CA 2093234

2093234 9206413 PCTABS00011 A composition useful for the protection of actinic light-exposed presensitized lithographic printing plates. The composition contains an effective amount of the di-potassium salt of hydroxyethylidene diphosphonic acid dissolved in water. The composition is applied to the surface of the revealed substrate of the plates after they have been developed but before treatment to heat, to prevent surface contamination from the heat treatment.

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