Radiographic materials with antifoggant precursors
AssigneeEastman Kodak Company
InventorsRobert E. Dickerson, George J. Burgmaier, Steven P. Szatynski, Stephen A. Hershey
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Abstract
A radiographic material containing tabular silver halide grains also includes an amido compound as an antifoggant precursor that can slowly release an antifoggant over time. These compounds are present in reactive association with the silver halide in tabular silver halide emulsion layers, and are present in an amount of at least 0.5 mmol/mol of silver. The radiographic materials are protected from fog during storage particularly in high temperature environments.
Claims24
A black-and-white radiographic material for providing a black-and-white-image comprising a support and disposed on at least one side of said surface, one or more hydrophilic colloid layers including a tabular grain silver halide emulsion layer containing predominantly spectrally sensitized tabular silver halide grains,
- said silver halide emulsion further comprising at least 0.5 mmol/mol of silver of an amido compound as an antifoggant precursor that slowly releases an antifoggant, that is in reactive association with silver halide in at least one tabular grain silver halide emulsion layer.
Dependencies are inferred from the claim text.