Dry planographic printing plate and preparation thereof

Details Dry planographic printing plate and preparation thereof Dry planographic printing plate and preparation thereof

1980-12-10

1982-08-03

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Imaged product

Structurally defined

430 14, 430166, 430272, 430303, 101453, G03C 168

Patent

active

043428207

ABSTRACT:
Provided is a presensitized planographic printing master plate requiring no dampening water for use in negative work which comprises a base substrate, a light releasing photosensitive layer overlying the base substrate and a silicone rubber layer overlying the photosensitive layer. When the printing master plate is exposed through a negative film and then treated with a developer, only the silicone rubber layer overlying the exposed photosensitive layer is removed, while the photosensitive layer remains as it is to form an image area. Dampening water is not required when printing is carried out.

REFERENCES:
patent: 3511172 (1970-05-01), Curtin
patent: 3677178 (1972-07-01), Gipe
patent: 3933495 (1976-01-01), Kendo et al.
patent: 4164422 (1979-08-01), Okai et al.
patent: 4254209 (1981-03-01), Abe et al.

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