Colloid relief images formed by oxidized developer transfer

Details Colloid relief images formed by oxidized developer transfer Colloid relief images formed by oxidized developer transfer

1982-08-13

1983-06-28

Schilling, Richard C.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430264, G03C 554

Patent

active

043906125

ABSTRACT:
A process for forming a colloid relief image on a substrate, comprising the steps of: (a) exposing to actinic light a sheet structure comprising a substrate having coated on one surface thereof a first layer comprising a colloid material capable of being tanned when contacted by oxidized silver halide developer, and coated over the first layer a second layer comprising a photographic silver halide emulsion, the emulsion containing substituted gelatin which is substantially resistant to tanning by the oxidized silver halide developers; (b) developing exposed sheet structure with oxidizable silver halide developers; and (c) washing the sheet structure with warm water, whereby all of the second layer is removed together with portions of the first layer which have not been tanned.

REFERENCES:
patent: 3364024 (1968-01-01), Yackel et al.
patent: 3575703 (1971-04-01), Judd et al.
patent: 4363864 (1982-12-01), Rutledge

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