Silver halide color photographic light-sensitive elements having improved image quality
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United States of America Patent
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Apr 7, 1998
Grant Date -
N/A
app pub date -
Apr 8, 1996
filing date -
Jun 6, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Silver halide photographic element comprising a support having coated thereon red-, green- and blue-sensitive silver halide emulsion layers comprising, respectively, cyan, magenta and yellow dye-forming couplers, wherein at least one silver halide emulsion layer comprises a yellow dye-forming DIR coupler having a 1,2,4-triazolyl group attached to the coupling position, said 1,2,4-triazolyl group comprising a hydrolyzable alkoxy- or aryloxy-carbonyl group attached to a benzylthio substituent on the 1,2,4-triazolyl group. Preferably, the yellow dye-forming DIR coupler is represented by the formula ##STR1## wherein R.sub.1 represents an alkyl group, an aryl group or --NHR.sub.5, wherein R.sub.5 represents an alkyl group or an aryl group, R.sub.2 represents an alkyl group or an aryl group, TIME represents a timing group, n is 0 or 1, R.sub.3 represents an alkyl group or a phenyl group, and R.sub.4 represents hydrogen atom or an alkyl group.
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