Negative type lithographic printing plate

Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...

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430230, 430234, 430564, 430415, 430416, 430955, 430251, G03C 554, G03C 106

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active

046939555

ABSTRACT:
Disclosed is a light-sensitive photographic element for negative type lithographic printing plates high in sensitivity and contrast which comprises a support having thereon a light-sensitive silver halide, a metal salt particle having substantially no light-sensitivity, a compound which reacts with an oxidized developing agent produced by development to release a compond which acts as a solvent or a solution physical development accelerator for said metal salt particle and physical development nuclei.

REFERENCES:
patent: 3685991 (1972-08-01), Grasshoff et al.
patent: 4199355 (1980-04-01), Hinshaw et al.
patent: 4247617 (1981-01-01), Debruyn et al.
patent: 4297430 (1981-10-01), Kanada et al.
patent: 4299908 (1981-10-01), Ito et al.
patent: 4499181 (1985-02-01), Watanabe et al.
Abstract of Japan, 150849/82, Kokai.

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