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US5077180A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for processing silver halide color photographic material

Assignee: Fujifilm Corp
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Filing: 1991-03-04
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Granted: 1991-12-31
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Expires: 2011-03-04
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Abstract

Abstract A method for continuously processing silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent is disclosed. In the method a silver halide color photographic material at least one of the layers of which contains a silver halide emulsion of a high chloride comprising 80 mol % or over of silver chloride is processed, after exposure to light, with a color developer that is substantially free from sulfite ions and whose replenishing amount is 120 ml or below per m 2 of the silver halide photographic material, to attain desired photographic characteristics.

Inventors

  • 👤 Kazuaki Yoshida
  • 👤 Takatoshi Ishikawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 09:02
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/407; G03C7/413; Y; Y10; Y10S; Y10S430/00; Y10S430/164

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 104 words
A method for continuously processing a silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent, which comprises developing, after exposure to light, a silver halide color photographic material having a total coating amount of silver halide in terms of silver of from 0.40 to 0.70 g/m 2 and at least one of the layers of which contains a silver halide emulsion comprising at least 80 mol % silver chloride, with a color developer that is substantially free from sulfite ions and whose replenishing amount is 20 to 120 ml per square meter of photographic material.
Claim 2
Independent Claim 104 words
A method for continuously processing a silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent, which comprises developing, after exposure to light, a silver halide color photographic material having a total coating amount of silver halide in terms of silver of from 0.40 to 0.70 g/m 2 and at least one of the layers of which contains a silver halide emulsion comprising at least 80 mol % silver chloride, with a color developer that is substantially free from sulfite ions and whose replenishing amount is 20 to 120 ml per square meter of photographic material.
Claim 3
Dependent Claim 16 words
The method as claimed in claim 1, wherein the color developer is substantially free from hydroxylamine.
Claim 4
Dependent Claim 15 words
The method as claimed in claim 1, wherein the color developer contains an organic preservative.
Claim 5
Dependent Claim 45 words
The method as claimed in claim 1, wherein the color developer contains at least one organic preservative selected from hydroxylamine derivatives, hydroxamic acids, hydrazines, hydrazides, phenols, α-hydroxyketones, α-aminoketones, saccharides, monoamines, diamines, polyamines, quaternary ammonium salts, nitroxy radicals, alcohols, oximes, diamide compounds, and condensed ring-type amines.
Claim 6
Dependent Claim 19 words
The method as claimed in claim 1, wherein the aromatic primary amine color developing agent is a p-phenylenediamine derivative.
Claim 7
Dependent Claim 53 words
The method as claimed in claim 1, wherein the color developer contains (i) at least one preservative selected from hydroxylamine derivatives, hydroxamic acids, hydrazines, hydrazides, phenols, α-hydroxyketones, α-aminoketones, saccharides and (ii) at least one preservative selected from monoamines, diamines, polyamines, quaternary ammonium salts, nitroxy radicals, alcohols, oximes, diamide compounds, and condensed ringtype amines.
Claim 8
Dependent Claim 301 words
The method as claimed in claim 1, wherein the color developer contains (i) at least one preservative selected from hydroxylamine derivatives represented by formula (I): ##STR48## wherein R 11 and R 12 each represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, or a heteroaromatic group, they do not represent hydrogen atoms at the same time, and they may bond together to form a heterocyclic ring with the nitrogen atom, and hydrazines and hydrazies represented by formula (III): ##STR49## wherein R 31 , R 32 , and R 33 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; R 34 represents a hydroxy group, a hydroxyamino group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted carbamoyl group, or a substituted or unsubstituted amino group, and (ii) at least one preservative selected from monoamines represented by formula (VII): ##STR50## wherein R 71 , R 72 , and R 73 each represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a heterocyclic group, and R 71 and R 72 , R 71 and R 73 , or R 73 may bond together to form a nitrogen-containing heterocyclic group, and amines having a condensed ring represented by formula (XVI): ##STR51## wherein X represents a trivalent group of atoms necessary to complete a condensed ring, and R 1 and R 2 each represent an alkylene group, an arylene group, an alkenylene group, or an aralkylene group, and R 1 and R 2 may be the same or different.
Claim 9
Dependent Claim 22 words
The method as claimed in claim 1, wherein the pH of the color developer is in the range of 9 to 12.
Claim 10
Dependent Claim 29 words
The method as claimed in claim 1, wherein the silver halide emulsion of the at least one of the layers contains 95 mol % or over of silver chloride.
Claim 11
Dependent Claim 17 words
The method as claimed in claim 1, wherein the color developer is substantially free from benyl alcohol.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-12-30 1995-07-01 1995-12-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-12-30 1999-07-01 1999-12-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-12-30 2003-07-01 2003-12-31 $7700.00 Window Closed / Lapsed

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