Abstract A method of forming a dye image which comprises processing, after imagewise exposure, a silver halide light-sensitive color photographic material having on a support thereof a silver halide emulsion layer containing silver halide crystals of which not less than 80 mol % are silver chloride crystals, in a developer essentially free from bromide ion and having a pH value of not less than 9.5, in the presence of a p-phenylenediamine color developing agent and a compound having an acid dissociation constant of not more than 1 x 10<-><8>, a solubility product with silver ion of not more than 1 x 10<-><1><0> and the formula …<CHEM>… wherein Z represents a group which forms a heterocyclic ring with the N atom.
A method of forming a dye image characterised by processing, after imagewise exposure, a silver halide light-sensitive color photographic material having on a support thereof a silver halide emulsion layer containing silver halide crystals of which not less than 80 mol % are silver chloride crystals, in a developer essentially free from bromide ion and having a pH value of not less than 9.5, in the presence of a p-phenylenediamine color developing agent and a compound having an acid dissociation constant of not more than 1 x 10 -8 , a solubility product with silver ion of not more than 1 x 10 -10 and the formula wherein Z represents a group which forms a heterocyclic ring with the N atom.
Claim 2
Independent Claim
121 words
A method of forming a dye image characterised by processing, after imagewise exposure, a silver halide light-sensitive color photographic material having on a support thereof a silver halide emulsion layer containing silver halide crystals of which not less than 80 mol % are silver chloride crystals, in a developer essentially free from bromide ion and having a pH value of not less than 9.5, in the presence of a p-phenylenediamine color developing agent and a compound having an acid dissociation constant of not more than 1 x 10 -8 , a solubility product with silver ion of not more than 1 x 10 -10 and the formula wherein Z represents a group which forms a heterocyclic ring with the N atom.
Claim 3
Dependent Claim
20 words
A method according to claim 1 wherein said heterocyclic ring is a benzimidazole, benzotriazole, purine, 8-azapurine or pyrazolo pyrimidine ring.
Claim 4
Dependent Claim
16 words
A method according to claim 1 or 2 wherein said compound is incorporated in the developer.
Claim 5
Dependent Claim
25 words
A method according to claim 3 wherein the compound is present in an amount from 1 mg to 10 g per liter of the developer.
Claim 6
Independent Claim
22 words
A method according to any one of claims 1 to 4 wherein the developer has a pH value from 10 to 13.
Claim 7
Independent Claim
21 words
A method according to any one of claims 1 to 5 wherein said silver halide crystals are pure silver chloride crystals.
Claim 8
Independent Claim
22 words
A method according to any one of claims 1 to 6 wherein said silver halide crystals have a mono-dispersed crystal size distribution.
Claim 9
Independent Claim
28 words
A method according to any one of claims 1 to 7 wherein the developer contains from 2 x 10 -3 to 0.2 mole of chloride ions per liter.
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