PS plates requiring no dampening water

Details PS plates requiring no dampening water PS plates requiring no dampening water

1992-03-16

1993-06-22

Hamilton, Cynthia

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430 30, 430906, G03F 7035, G03F 709

Patent

active

052215946

ABSTRACT:
A water-less PS plate for use in making a water-less lithographic printing plate comprises, on a substrate, a photopolymerizable light-sensitive layer and a silicone rubber layer in this order, wherein the light-sensitive layer is formed from a photopolymerizable light-sensitive composition which contains an urea bond-containing polyurethane as a binder. According to the present invention, there is obtained a water-less PS plate having good resistance to scratch and high printing durability. Moreover, the resulting light-sensitive layer does not get sticky, the light-sensitive layer of the non-image portions is not peeled off during the printing operations, and the lithographic plate shows good dyeability and plate-examination property.

REFERENCES:
patent: 2948611 (1960-08-01), Barney

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