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Method for processing color photographic light-sensitive material

Assignee: Fujifilm Holdings Corp
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Filing: 1983-03-25
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Granted: 1984-05-01
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Expires: 2003-03-25
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Abstract

Abstract A method for processing a color photographic light-sensitive material is disclosed. The process envolves providing an exposed silver halide color photographic light-sensitive material and subjecting the material to a color development processing. During the processing after development processing the material is brought into contact with a compound represented by the general formulae (I-a) or (I-b) in a bath of a bleaching or bleach-fixing processing or in a pre-bath thereof. ##STR1## wherein A represents an amino group which is optionally substituted or a nitrogen-containing hetero ring residue which may be optionally substituted, R 1 represents a hydrogen atom or a carboxy group, R 2 represents a monovalent metal atom, an ammonium group, an optionally substituted alkyl group or a group represented by ##STR2## R 3 and R 4 each represents a hydrogen atom or an alkyl group which may be substituted by a hydroxy group, an alkoxy group, a halogen atom, a carboxyl group, --SO 2 H, --SO 3 H, or a group represented by A described above, m represents 1 or 2, and n represents an integer of 2 to 4. The method of the invention does not produce poisonous materials which are harmful to the environment and provides an excellent high speed bleaching process without harming other photographic properties.

Inventors

  • 👤 Shinzo Kishimoto
  • 👤 Kiyohiko Yamamuro

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 14:32
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/42; G03C7/421

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 181 words
A method for processing a color photographic light-sensitive material by subjecting an exposed silver halide color photographic light-sensitive material to a color development processing then to a bleaching processing and a fixing processing or to a bleach-fixing processing, which process comprises incorporating at least one compound represented by the following general formula (I-a) or (I-b) in a bath of said bleaching or bleach-fixing processing or in a pre-bath thereof: ##STR21## wherein A represents an amino group which is optionally substituted or a nitrogen-containing hetero ring residue which may be optionally substituted, R 1 represents a hydrogen atom or a carboxy group, R 2 represents a monovalent metal atom, an ammonium group, an optionally substituted alkyl group or a group represented by ##STR22## R 3 and R 4 each represents a hydrogen atom or an alkyl group which may be substituted by a hydroxy group, an alkoxy group, a halogen atom, a carboxyl group, --SO 2 H, --SO 3 H, or a group represented by A described above, m represents 1 or 2, and n represents an integer of 2 to 4.
Claim 2
Independent Claim 181 words
A method for processing a color photographic light-sensitive material by subjecting an exposed silver halide color photographic light-sensitive material to a color development processing then to a bleaching processing and a fixing processing or to a bleach-fixing processing, which process comprises incorporating at least one compound represented by the following general formula (I-a) or (I-b) in a bath of said bleaching or bleach-fixing processing or in a pre-bath thereof: ##STR21## wherein A represents an amino group which is optionally substituted or a nitrogen-containing hetero ring residue which may be optionally substituted, R 1 represents a hydrogen atom or a carboxy group, R 2 represents a monovalent metal atom, an ammonium group, an optionally substituted alkyl group or a group represented by ##STR22## R 3 and R 4 each represents a hydrogen atom or an alkyl group which may be substituted by a hydroxy group, an alkoxy group, a halogen atom, a carboxyl group, --SO 2 H, --SO 3 H, or a group represented by A described above, m represents 1 or 2, and n represents an integer of 2 to 4.
Claim 3
Dependent Claim 46 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the substituent of the amino group or a nitrogen containing hetero ring residue represented by A is an alkyl group which contains 1 to 3 carbon atoms and may be substituted.
Claim 4
Dependent Claim 33 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein R 2 , R 3 and R 4 represent an alkyl group containing 1 to 5 carbon atoms.
Claim 5
Dependent Claim 41 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the amount of the compound in a bleaching bath, a bleach-fixing bath or a pre-bath thereof is 1×10 -5 to 1 mol/liter of a processing solution.
Claim 6
Dependent Claim 29 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein a bleaching agent used in a bleaching bath or bleach-fixing bath is a persulfate.
Claim 7
Dependent Claim 32 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein a bleaching agent used in a bleaching bath or bleach-fixing bath is a ferric ion complex salt.

References Cited (Backward Citations)

US3042520A Cited
US3241966A Cited
US3809563A Cited
US3772020A Cited
US4144068A Cited
US4322493A Cited
US4242442A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-05-01 1987-10-31 1988-05-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-05-01 1991-10-31 1992-05-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-05-01 1995-10-31 1996-05-01 $7700.00 Window Closed / Lapsed

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