Dampening water composition for lithographic printing and method

Details Dampening water composition for lithographic printing and method Dampening water composition for lithographic printing and method

1991-10-22

1992-11-24

Beck, Shrive

Printing

Planographic

Processes of lithographic printing

106 2, B41F 118, C09K 318

Patent

active

051653443

ABSTRACT:
A dampening water composition for lithographic printing plate comprises a hydrophilic polymer having a film-forming ability, a pH-buffering substance and at least one compound selected from the group consisting of benzimidazole and derivatives thereof. The dampening water composition can effectively suppress the corrosion of copper or copper alloy-plated rolls of a printing press as well as cast iron or nickel-plated cast iron parts thereof without impairing printing effects and printability.

REFERENCES:
patent: 4475460 (1984-10-01), Matsumoto
patent: 4548645 (1985-10-01), Thiebaut
patent: 4764213 (1988-08-01), Gventer et al.
patent: 4798627 (1989-01-01), Schmitt et al.
patent: 5054394 (1991-10-01), Zweig
patent: 5096487 (1992-03-01), Schell

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