Planographic printing plate and process for making the same

Details Planographic printing plate and process for making the same Planographic printing plate and process for making the same

1978-05-10

1980-07-01

Esposito, Michael F.

Printing

Planographic

Lithographic plate making, and processes of making or using...

427391, 428342, 428503, 428530, 428913, 430302, 430524, 430531, B41N 300, G03F 710

Patent

active

042100810

ABSTRACT:
Planographic printing plates are made by depositing on a support sheet an aqueous mixture comprising a hydroxyl group-containing polymer free from acid groups, an insolubilizing agent, a synthetic polymer containing acid groups and preferably a filler, and then drying the deposited layer.
The process can be operated at near ambient temperature to give rapidly and reliably a durable water-insoluble hydrophilic layer.

REFERENCES:
patent: 2550326 (1951-04-01), Brown
patent: 2931742 (1960-04-01), Hicks
patent: 3357352 (1967-12-01), Williams, Jr. et al.
patent: 3437034 (1969-04-01), Otto et al.
patent: 3608489 (1971-09-01), Croker
patent: 3979478 (1976-09-01), Gallacher
patent: 4091130 (1978-05-01), Shaw

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