Direct offset printing plate

Details Direct offset printing plate Direct offset printing plate

1977-03-09

1979-04-17

Schilling, Richard L.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 29L, 96 94R, 96101, G03C 148, G03C 554, G03C 136, G03C 102

Patent

active

041498895

ABSTRACT:
A direct offset printing plate which comprises a support and a photographic silver halide emulsion layer and a layer containing nuclei for physical development which are coated in this order on said support. Said emulsion layer comprises fogged direct-positive silver halide emulsion wherein silver halide grains contain at least 80 mol % of bromide and has an electron acceptor on their surface and the weight ratio of binder and silver is 1/5-2. The coating amount of silver is 0.5-2.5 g/m.sup.2.

REFERENCES:
patent: 3676125 (1972-07-01), de Haas
patent: 3721559 (1973-03-01), DE Haas
patent: 3728114 (1973-04-01), Futaki et al.
patent: 3957518 (1973-07-01), Vanassche et al.

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