Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Readily visible image formation
Patent
1984-01-30
1985-05-28
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Readily visible image formation
430293, 430294, 430381, 430538, 430548, G03C 500
Patent
active
045200939
ABSTRACT:
A photosensitive composition, a photosensitive element employing said composition, and an improved photoimaging method that utilizes the disclosed composition. The improved method concerns a photosensitive element, formed from a photosensitive composition having a substrate layered with silver halide particles in operative association with a polymeric coupler, latently imaged, developed to render the imaged area insoluble, and washed to remove the undeveloped portion of the layer, wherein the improvement comprises addition of selected dispersed pigments to the polymeric coupler so that the optical density of the final image is neutral black.
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Brown J. Travis
Costello James A.
E. I. Du Pont de Nemours and Company
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