Light-sensitive silver halide color photographic material
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsSatoshi Nakagawa, Hiroshi Sugita, Shuzi Kida, Morito Uemura, Ken-ichi Kishi
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Abstract
There is disclosed a light-sensitive silver halide photographic material containing a compound represented by the formula (I): ##STR1## wherein G, R.sub.1, R.sub.2 and X have the same meanings as defined in the specification. The 1-naphthol coupler which is contained in the light-sensitive silver halide photographic material is high in reactivity with an oxidized product of a color forming developing agent and can efficiently impart imagewise photographic effects to light-sensitive silver halide photographic materials.
Claims20
A light-sensitive silver halide color photographic material containing a compound represented by formula (I):
- ##STR29## wherein G is a hydrogen atom or a blocking group which is eliminated from the compound of formula (I) through hydrolysis or intramolecular nucleophilic substitution during development;
- R.sub.1 is an organic group having up to 16 carbon atoms and at least one substituent selected from the group consisting of carboxyl, sulfo and hydroxyl, which may also form a salt;
- R.sub.2 is a hydrogen atom or a water soluble acidic group;
- and X is
- (a) a development accelerator group;
- or
- (b) a TIME-PUG group;
- wherein TIME is a timing group and PUG is a photographically useful group wherein said TIME-PUG group is eliminated from the compound of formula (I) through the reaction of the compound of formula (I) with an oxidized product of a color forming developing agent and thereafter the PUG group can be released from said TIME-PUG group, said compound of formula (I) and a cyan dye formed through the reaction of said compound with said oxidized product of said color forming developing agent being soluble in alkali.
A light-sensitive slver halide color photographic material containing a compound represented by formula (I):
- ##STR38## wherein G is a hydrogen atom or a blocking group which is eliminated from the compound of formula (I) though hydrolysis or intramolecular nucleophilic substitution during development;
- R.sub.1 is an organic group having up to 16 carbon atoms and at least one substituent group selected from the group consisting of carboxyl, sulfo and hydroxyl, which may also form a salt;
- R.sub.2 is a hydrogen atom or a water soluble acidic group;
- and X is represented by formula (VIII):
- ##STR39## wherein Q is a non-metallic atom necessary for completion of a 5-pyrazolone magenta dye forming coupler group or a phenol cyan dye forming coupler group together with an oxygen atom adjacent to the ring formed by Q;
- in the ring completed by Q is the coupling position;
- R.sub.9 is a hydrogen atom or a coupling-off group and n is 1 or 2.
Dependencies are inferred from the claim text.