Silver halide photographic material
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United States of America Patent
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Sep 20, 1994
Issued Date -
N/A
app pub date -
Jun 16, 1993
filing date -
Oct 26, 1990
priority date (Note) -
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Abstract
A silver halide photographic material comprising a support and at least one light-sensitive silver halide emulsion layer coated on at least one side of the support, wherein the silver halide grains contained in the silver halide emulsion layer have been subjected to reduction-sensitization, and the silver halide emulsion contains at least one spectral sensitizer represented by Formula (I), as defined in claim 1. At least one of the dyes represented by Formula (II), as defined in claim 1, is added to the silver halide emulsion after chemical sensitization or reduction sensitization, but before coating. The addition amount of the dye represented by Formula (I) is 5.times.10.sup.-4 to 3.times.10.sup.-3 mol per mol of silver halide and the addition amount of the dye represented by Formula (II) is 1.times.10.sup.-5 to 1.times.10.sup.-3 mol per mol of silver halide, provided that the addition amount of the dye of Formula (I) is more than that of the dye of Formula (II). Such a silver halide photographic material increases the sensitivity while significantly lowering the amount of fog.
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