US4681835A
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Method of processing silver halide color photographic material containing pyrazoloazole-type magenta coupler using a final bath containing a soluble iron salt
Assignee: Fujifilm Holdings Corp
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Filing: 1985-12-12
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Granted: 1987-07-21
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Expires: 2005-12-12
Abstract
Abstract A method of processing a silver halide color photographic material, which comprises processing a photographic material containing at least one pyrazoloazole type magenta coupler represented by the general formula (I) in a final bath containing a soluble iron salt in an amount of at least 1×10 -4 mol/l, whereby marked improvements in stabilization of color images, especially cyan dye images and prevention of yellow stain are achieved: ##STR1## wherein R 1 represents a hydrogen atom or a substituent, X represents a hydrogen atom or a group capable of being eliminated by the coupling reaction with an oxidation product of an aromatic primary amine developing agent, and Z a , Z b and Z c each represents methine group, a substituted methine group, ═N-- or --NH--, provided that one of the Z a -Z b and Z b -Z c bonds is a double bond and the other is a single bond, in which when it represents a double bond the Z b -Z c bond includes one which constitutes a part of an aromatic ring, and further, the substituent R 1 or X, or the substituted methine represented by Z a , Z b or Z c may form a polymer including a dimer.
Inventors
- 👤 Takatoshi Ishikawa
- 👤 Kiyoshi Nakazyo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:32
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/381; G03C7/382; G03C7/3825; G03C7/3046
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
187 words
A method for processing a silver halide color photographic material, which comprises processing a photographic material containing at least one pyraoloazole type magenta coupler represented by the following general formula (I) in a final bath containing a soluble iron salt in an amount of at least 1×10 -4 mol/l: ##STR14## wherein R 1 represents a hydrogen atom or a substituent, X represents a hydrogen atom or a group capable of being eliminated by the coupling reaction with an oxidation product of an aromatic primary amine developing agent, and Z a , Z b and Z c each represents methine group, a substituted methine group, ═N-- or --NH--, provided that one of the Z a -Z b and the Z b -Z c bonds is a double bond and the other is a single bond, in which when it represents a double bond, the Z b -Z c bond includes one which constitutes a part of an aromatic ring, and further, the substituent R 1 or X, or the substituted methine represented by Z a , Z b or Z c may form a polymer including a dimer.
Claim 2
Independent Claim
187 words
A method for processing a silver halide color photographic material, which comprises processing a photographic material containing at least one pyraoloazole type magenta coupler represented by the following general formula (I) in a final bath containing a soluble iron salt in an amount of at least 1×10 -4 mol/l: ##STR14## wherein R 1 represents a hydrogen atom or a substituent, X represents a hydrogen atom or a group capable of being eliminated by the coupling reaction with an oxidation product of an aromatic primary amine developing agent, and Z a , Z b and Z c each represents methine group, a substituted methine group, ═N-- or --NH--, provided that one of the Z a -Z b and the Z b -Z c bonds is a double bond and the other is a single bond, in which when it represents a double bond, the Z b -Z c bond includes one which constitutes a part of an aromatic ring, and further, the substituent R 1 or X, or the substituted methine represented by Z a , Z b or Z c may form a polymer including a dimer.
Claim 3
Dependent Claim
179 words
The method as claimed in claim 1, wherein said compound represented by formula (I) is a compound represented by general formulae (II), (III), (IV), (V), (VI) and (VII), ##STR15## wherein R 2 , R 3 and R 4 represent hydrogen atom, a halogen atom, an alkyl group, an aryl group, a heterocyclic group, a cyano group, an alkoxy group, an aryloxy group, a heterocyclicoxy group, an acyloxy group, a carbamoyloxy group, a silyloxy group, a sulfonyloxy group, an acylamino group, an anilino group, a ureido group, an imido group, a sulfamoylamino group, a carbamoylamino group, an alkylthio group, an arylthio group, a heterocyclicthio group, an alkoxycarbonylamino group, an alyloxycarbonylamino group, a sulfonamido group, a carbamoyl group, an acyl group, a sulfamoyl group, a sulfonyl group, an alkoxycarbonyl group or an aryloxycarbonyl group, and X represents hydrogen atom, a halogen atom, a carboxy group or a group which is attached, through oxygen atom, nitrogen atom or sulfur atom contained therein, to the carbon atom situated in the coupling position and can be eliminated from the compound upon a coupling reaction.
Claim 4
Dependent Claim
24 words
The method as claimed in claim 2, wherein said compound represented by formula (I) is a compound represented by general formula (II) and (V).
Claim 5
Dependent Claim
27 words
The method as claimed in claim 2, wherein R 2 , R 3 and R 4 or X is a divalent group which forms a bis compound.
Claim 6
Dependent Claim
55 words
The method as claimed in claim 2, wherein the moiety represented by the general formula (II) to (VII) is a vinyl monomer, R 2 , R 3 or R 4 represents a chemical bond or linkage group through which the moiety represented by the general formula (II) to (VII) and the vinyl group are linked.
Claim 7
Dependent Claim
34 words
The method as claimed in claim 1, wherein the said magenta coupler is employed in an amount of from 2×10 -3 to 5×10 -1 mol per mol of silver contained in an emulsion layer.
Claim 8
Dependent Claim
34 words
The method as claimed in claim 6, wherein the said magenta coupler is employed in an amount of from 1×10 -2 to 5×10 -1 mol per mol of silver contained in an emulsion layer.
Claim 9
Dependent Claim
27 words
The method as claimed in claim 1, wherein said soluble iron salt is employed in an amount of from 1×10 -4 to 1×10 -1 mol per liter.
Claim 10
Dependent Claim
27 words
The method as claimed in claim 8, wherein said soluble iron salt is employed in an amount of from 2×10 -4 to 1×10 -2 mol per liter.
Claim 11
Dependent Claim
21 words
The method as claimed in claim 1, wherein said final bath is a washing bath of the multistage counter current type.
Claim 12
Dependent Claim
43 words
The method as claimed in claim 1, wherein said final bath is a stabilizing bath and wherein the pre-bath thereof is a washing bath having outlets in one tank or a stabilizing bath of the multistage counter current type without a washing process.
Claim 13
Dependent Claim
28 words
The method as claimed in claim 1, wherein said soluble iron salt is the iron salt which can be complexed substantially with a chelating agent in the bath.
Claim 14
Dependent Claim
20 words
The method as claimed in claim 12, wherein said chelating agent is one selected from the group consisting of ##STR16##
Claim 15
Dependent Claim
111 words
The method as claimed in claim 1, wherein R 1 is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a heterocyclic group, a cyano group, an alkoxy group, an aryloxy group, a heterocyclicoxy group, an acyloxy group, a carbamoyloxy group, a silyloxy group, a sulfonyloxy group, an acylamino group, an anilino group, a ureido group, an imido group, a sulfamoylamino group, a carbamoylamino group, an alkylthio group, an arylthio group, a heterocyclicthio group, an alkoxycarbonylamino group, an alyloxycarbonylamino group, a sulfonamindo group, a carbamoyl group, an acyl group, a sulfamoyl group, a sulfonyl group, an alkoxycarbonyl group or an aryloxycarbonyl group.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-20 | 1991-01-19 | 1991-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-20 | 1995-01-19 | 1995-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-20 | 1999-01-19 | 1999-07-21 | $7700.00 | Window Closed / Lapsed |