Dry type image formation process

Details Dry type image formation process Dry type image formation process

1995-08-31

1997-09-23

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430337, 430349, 430352, 430353, G03C 1498, G03C 840

Patent

active

056702922

ABSTRACT:
A dry type image formation process which comprises imagewise exposing a heat-developable photosensitive material to light, and then heat-developing the heat-developable photosensitive material, wherein the heat-developable photosensitive material further comprises a component isolated by microcapsules and the heat-developable photosensitive material is pressed before or after heat development so that the microcapsules are ruptured to release the internal phase and cause the component to be diffused into the photosensitive layer, allowing its function to be fulfilled, and an image formation process which comprises heat-developing a heat-developable photosensitive material after or simultaneously with imagewise exposing, the heat-developable photosensitive material comprising a photosensitive silver halide, a reducing agent, a basic precursor, a dye-providing substance which undergoes heat development to release or produce a dye, and a silver halide fixing agent which is a compound capable of fixing and stabilizing the silver halide, which comprises isolating the silver halide fixing agent from the silver halide before heat-developing so as not to affect the silver halide and bring the silver halide fixing agent in contact with the silver halide after or simultaneously with heat-developing to fix undeveloped silver halide.

REFERENCES:
patent: 4283477 (1981-08-01), Fletcher et al.
patent: 4500624 (1985-02-01), Aono et al.
patent: 4500626 (1985-02-01), Naito et al.
patent: 4675277 (1987-06-01), Sato et al.
patent: 4678739 (1987-07-01), Kitaguchi et al.

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