Unfogged,primitive,silver halide emulsions containing desensitizing amounts of optical sensitizing dyes and the use thereof in reversal processes
Abstract
Abstract IMPROVED PROCESSES ARE DISCLOSED FOR OBTAINING POSITIVE IMAGES IN AN UNFOGGED, PRIMITIVE, SILVER HALIDE EMULSION WHEREIN A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND SAID EMULSION ARE IMAGEWISE-EXPOSED AND THEN EITHER (1) DEVELOPED IN A SILVER HALIDE DEVELOPER IN THE PRESENCE OF A SILVER HALIDE FOGGING AGENT OR (2) GIVEN A HIGHINTENSITY LIGHT FLASH BEFORE DEVELOPMENT IN A SILVER HALIDE DEVELOPER. IN ONE ASPECT, THE SILVER HALIDE EMULSIONS OF THIS INVENTION ARE UNFOGGED, PRIMITIVE, SILVER HALIDE EMULSIONS WHICH CONTAIN A DESENSITIZING CONCENTRATION OF A SPECTRAL-SENSITIZING DYE. IN ONE PREFERRED EMBODIMENT, THE PRIMITIVE SILVER HALIDE EMULSION CONTAINING A DESENSITIZING LEVEL OF A DESENSITIZING DYE IS (1) IMAGEWISE-EXPOSED, (2) GIVEN AN OVER-ALL FLASH EXPOSURE WITH A RELATIVELY SHORTDURATION, HIGH-INTENSITY LIGHT AND (3) DEVELOPED IN A SILVER HALIDE DEVELOPER.
Inventors
- 👤 S S Collier
- 👤 P B Gilman
- 👤 H Linschitz
- 👤 R G Raleigh
Bibliographic Details
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