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US5082764A Expired / Lapsed US ⏱️ 0.0 years remaining

Silver halide color photographic material and method for forming color image

Assignee: Fujifilm Holdings Corp
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Filing: 1990-10-26
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Granted: 1992-01-21
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Expires: 2010-10-26
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Abstract

Abstract There is disclosed a silver halide color photographic material having at least one silver halide emulsion layer on a base, which comprises in the silver halide emulsion layer a silver halide grains of high silver-chloride and an emulsified dispersion containing lipophilic fine particles that have a limited average particle diameter and include a cyan coupler represented by formula (I), a high-boiling organic solvent having a limited viscosity, and a diffusion-resistant compound represented by formula (II) or (III), and a method for forming an image by developing the said silver halide color photographic material. The disclosure as described provides a color photographic material and a method for forming an image being excellent in image quality and preservation property of cyano color image.

Inventors

  • 👤 Osamu Takahashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 10:08
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3003; G03C7/3005; G03C7/3006

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 261 words
A silver halide color photographic material having photographic constitutional layers that include at least one silver halide emulsion layer on a base, comprising in at least on of said silver halide emulsion layer silver halide grains having a silver chloride content of 90 mol% or over and an emulsified dispersion containing lipophilic fine particles with an average particle diameter in the range of 0.18 μm to 0.35 μm that include at least one cyan dye-forming coupler represented by formula (I): ##STR271## wherein R 1 represents an alkyl group having at least 7 carbon atoms, R 2 represents an alkyl group having 1 to 15 carbon atoms, L represents a mere bonding line or a bivalent linking group, and Z represents a hydrogen atom or a group or an atom capable of being released at the time of coupling with a developing agent, at least one high-boiling organic solvent having a viscosity of 200 cp or over at 25° C., and at least one compound selected from the group consisting of diffusion-resistant compounds represented by formulae (II) and (III): ##STR272## wherein R 3 , R 4 , R 5 , and R 6 each represent a hydrogen atom, a halogen atom, or a chain, cyclic, or branched alkyl, alkyloxy, or alkylthio group, provided that R 3 and R 4 and/or R 5 and R 6 do not simultaneously represent a hydrogen atom and/or a halogen atom respectively, and of alkyl groups represented by R 3 to R 6 , an alkyl group whose root carbon is a tertiary carbon atom are excluded.
Claim 2
Dependent Claim 261 words
A silver halide color photographic material having photographic constitutional layers that include at least one silver halide emulsion layer on a base, comprising in at least on of said silver halide emulsion layer silver halide grains having a silver chloride content of 90 mol% or over and an emulsified dispersion containing lipophilic fine particles with an average particle diameter in the range of 0.18 μm to 0.35 μm that include at least one cyan dye-forming coupler represented by formula (I): ##STR271## wherein R 1 represents an alkyl group having at least 7 carbon atoms, R 2 represents an alkyl group having 1 to 15 carbon atoms, L represents a mere bonding line or a bivalent linking group, and Z represents a hydrogen atom or a group or an atom capable of being released at the time of coupling with a developing agent, at least one high-boiling organic solvent having a viscosity of 200 cp or over at 25° C., and at least one compound selected from the group consisting of diffusion-resistant compounds represented by formulae (II) and (III): ##STR272## wherein R 3 , R 4 , R 5 , and R 6 each represent a hydrogen atom, a halogen atom, or a chain, cyclic, or branched alkyl, alkyloxy, or alkylthio group, provided that R 3 and R 4 and/or R 5 and R 6 do not simultaneously represent a hydrogen atom and/or a halogen atom respectively, and of alkyl groups represented by R 3 to R 6 , an alkyl group whose root carbon is a tertiary carbon atom are excluded.
Claim 3
Dependent Claim 75 words
The silver halide color photographic material as claimed in claim 1, wherein a blue-sensitive silver halide emulsion layer of the silver halide photographic material contains lipophilic fine particles (A) containing a yellow dye-forming coupler, a green-sensitive silver halide emulsion layer of the silver halide photographic material contains lipophilic fine particles (B) containing a magenta dye-forming coupler, and the average particle diameter of both the lipophilic fine particles (A) and (B) is 0.25 μm or less.
Claim 4
Dependent Claim 32 words
The silver halide color photographic material as claimed in claim 1, wherein the silver halide emulsion layer containing at least one coupler of formula (I) further comprises a water-insoluble organic polymer compound.
Claim 5
Dependent Claim 27 words
The silver halide color photographic material as claimed in claim 1, wherein R 1 in formula (I) represents an alkyl group having 10 to 22 carbon atoms.
Claim 6
Dependent Claim 16 words
The silver halide color photographic (I) represents an alkyl group having 2 to 4 carbon atoms.
Claim 7
Dependent Claim 16 words
The silver halide color photographic (I) represents an alkyl group having 2 to 4 carbon atoms.
Claim 8
Dependent Claim 37 words
The silver halide color photographic material as claimed in claim 1, wherein R 4 or R 6 in formula (II) or (III) represents an alkyl group or an alkylthio group each having 6 to 22 carbon atoms.
Claim 9
Dependent Claim 29 words
The silver halide color photographic material as claimed in claim 1, wherein R 3 or R 5 in formula (II) or (III) represents a hydrogen atom or halogen atom.
Claim 10
Dependent Claim 25 words
The silver halide color photographic material as claimed in claim 3, wherein the water-insoluble organic polymer is selected from the group consisting of vinyl polymers.
Claim 11
Dependent Claim 31 words
The silver halide color photographic material as claimed in claim 3, wherein the water-insoluble organic polymer is selected from the group consisting of polymers obtained by condensation polymerization and addition polymerization.
Claim 12
Dependent Claim 29 words
The silver halide color photographic material as claimed in claim 3, wherein the water-insoluble organic polymer is selected from the group consisting of polyesters obtained by ring opening polymerization.
Claim 13
Dependent Claim 31 words
The silver halide color photographic material as claimed in claim 3, wherein the weight ratio of the water-insoluble organic polymer to the coupler is in the range of 1:20 to 20:1.
Claim 14
Dependent Claim 41 words
The silver halide color photographic material as claimed in claim 1, wherein the cyan coupler represented by formula (I) is used in an amount of 0.1 to 1 mol% per mol of the silver halide in the silver halide photographic layer.
Claim 15
Dependent Claim 44 words
The silver halide color photographic material as claimed in claim 1, wherein the compound selected from the group consisting of compounds represented by formula (II) and/or formula (III) are used in an amount of 0.1 to 100 mol% per mol of the cyan coupler.
Claim 16
Dependent Claim 37 words
The silver halide color photographic material as claimed in claim 1, wherein the compound represented by formula (II) and the compound represented by formula (III) are used in combination in a molar ratio of 0.01:1 to 10:1.
Claim 17
Dependent Claim 29 words
The silver halide color photographic material as claimed in claim 1, wherein the average particle diameter of the emulsified dispersion of lipophilic fine particles is 0.18 to 0.29 μm.
Claim 18
Dependent Claim 160 words
The silver halide color photographic material as claimed in claim 1, wherein the high-boiling organic solvent is selected from the group of compounds represented by the following formulae (II s ), (III s ), (IV s ), (V s ), (VI s ), and (VII s ). ##STR273## wherein W 1 , W 2 , and W 3 each represent a substituted or unsubstituted, alkyl group, cycloalkyl group, alkenyl group, aryl group, or heterocyclic group, W 4 represents W 1 , O-W 1 or S-W 1 , n is an integer of 1 to 5, when n is 2 or over, W 4 groups may be the same or different, and in formula (VI s ), W 1 and W 2 may together form a condensed ring, W 5 represents a substituted or unsubstituted alkyl group, cycloalkyl group, or aryl group, the total number of carbon atoms constituting W 5 being 12 or more, and X represents a halogen atom.
Claim 19
Dependent Claim 25 words
The silver halide color photographic material as claimed in claim 1, wherein the boiling point of the high-boiling organic solvent is 140° C. or over.
Claim 20
Dependent Claim 35 words
The silver halide color photographic material as claimed in claim 1, wherein the weight ratio of the high-boiling organic solvent to be used to the cyan coupler is in the range of 0.05:1 to 20:1.
Claim 21
Dependent Claim 52 words
A method for forming an image, which comprises after exposing photographic material as claimed in claim 1 to light image-wise, subjecting the silver halide photographic material to color-development with a color developer substantially free from benzyl alcohol and then treating it with a bleach-fix solution having a pH of 6.3 or below.

References Cited (Backward Citations)

US4686177A Cited
US5006453A Cited
EP0280238A2 Cited
US4857449A Cited
JPS63316857A Cited
US4945031A Cited
US4971898A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-01-20 1995-07-22 1996-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-01-20 1999-07-22 2000-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-01-20 2003-07-22 2004-01-21 $7700.00 Window Closed / Lapsed

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