Silver halide photographic material comprising two kinds of monodisperse emulsions differing in mean grain size
A silver halide photographic material comprising at least one negative type silver halide emulsion layer coated on a support, said emulsion comprising two kinds of monodisperse emulsions each having a means grain sizes of not more than 0.5 micron and, differing in mean grain size from each other at...
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Main Author | |
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Format | Patent |
Language | English |
Published |
22.11.1988
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Edition | 4 |
Subjects | |
Online Access | Get full text |
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Summary: | A silver halide photographic material comprising at least one negative type silver halide emulsion layer coated on a support, said emulsion comprising two kinds of monodisperse emulsions each having a means grain sizes of not more than 0.5 micron and, differing in mean grain size from each other at least by 0.1 micron, and said photographic material further comprising a hydrazine derivative in at least one photographic layer, whereby negative images of high density and very high contrast can be obtained with a high photographic speed and without black spots. |
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Bibliography: | Application Number: US19870115645 |