US4477558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide color photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1983-04-21
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Granted: 1984-10-16
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Expires: 2003-04-21
Abstract
Abstract A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, the color photographic light-sensitive material containing a cyan dye forming coupler represented by the following general formula (I): ##STR1## wherein R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a heterocyclic group; X represents a hydrogen atom or a group capable of being released upon an oxidative coupling reaction with a developing agent; R 1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group. The cyan dye forming coupler represented by the general formula (I) has a good solubility in an organic solvent having a high boiling point and a high dye forming rate even in a color developing solution which does not contain benzyl alcohol and provides a cyan color image having a high maximum density and excellent fastness to light. Further, a decrease in optical density of the cyan color image is not substantially observed even when the color photographic light-sensitive material is processed with a bleaching solution which has a weak oxidation power or a bleaching solution which is exhausted.
Inventors
- 👤 Akira Ogawa
- 👤 Kozo Aoki
- 👤 Takayoshi Kamio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:27
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/34; G03C7/346
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
97 words
A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer and a cyan dye forming coupler represented by the following general formula (I): ##STR14## wherein R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; X represents a hydrogen atom or a group capable of being released upon an oxidative coupling reaction with a developing agent; and R 1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group.
Claim 2
Dependent Claim
97 words
A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer and a cyan dye forming coupler represented by the following general formula (I): ##STR14## wherein R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; X represents a hydrogen atom or a group capable of being released upon an oxidative coupling reaction with a developing agent; and R 1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group.
Claim 3
Dependent Claim
30 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the alkyl group represented by R is an alkyl group having from 1 to 22 carbon atoms.
Claim 4
Dependent Claim
78 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the substituent for the alkyl group, the aryl group and the heterocyclic group represented by R is selected from an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, a carboxy group, a carbonyl group, an ester group, an amido group, an imido group, a sulfonyl group, a hydroxy group, a cyano group, a nitro group and a halogen atom.
Claim 5
Dependent Claim
18 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein X represents a hydrogen atom.
Claim 6
Dependent Claim
30 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein X represents a group capable of being released upon an oxidative coupling reaction with a developing agent.
Claim 7
Dependent Claim
43 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein X represents a halogen atom, an alkoxy group, an aryloxy group, an acyloxy group, a sulfonyloxy group, an amido group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group, or an imido group.
Claim 8
Dependent Claim
31 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the alkyl group represented by R 1 is an alkyl group having from 1 to 22 carbon atoms.
Claim 9
Dependent Claim
79 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the substituent for the alkyl group, the aryl group or the heterocyclic group represented by R 1 is selected from an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, a carboxy group, a carbonyl group, an ester group, an amido group, an imido group, a sulfonyl group, a hydroxy group, a cyano group, a nitro group and a halogen atom.
Claim 10
Dependent Claim
26 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the cyan dye forming coupler is present in a silver halide emulsion layer.
Claim 11
Dependent Claim
25 words
A silver halide color photographic light-sensitive material as claimed in claim 9, wherein the silver halide emulsion layer is a red-sensitive silver halide emulsion layer.
Claim 12
Dependent Claim
42 words
A silver halide color photographic light-sensitive material as claimed in claim 9, wherein the cyan dye forming coupler is present in an amount of from 2×10 -3 mol to 5×10 -1 mol per mol of silver in the silver halide emulsion layer.
Claim 13
Dependent Claim
31 words
A silver halide color photographic light-sensitive material as claimed in claim 10, wherein the photographic material further includes a blue-sensitive silver halide emulsion layer and a green-sensitive silver halide emulsion layer.
Claim 14
Dependent Claim
38 words
A silver halide color photographic light-sensitive material as claimed in claim 12, wherein the blue-sensitive silver halide emulsion layer contains a yellow color forming coupler and the green-sensitive silver halide emulsion layer contains a magenta color forming coupler.
Claim 15
Dependent Claim
40 words
A silver halide color photographic light-sensitive material as claimed in claim 9, wherein the cyan dye forming coupler is dispersed together with an organic solvent having a high boiling point in a hydrophilic colloid of the silver halide emulsion layer.
Claim 16
Independent Claim
121 words
A method of forming a color image comprising developing an imagewise exposed silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer and a cyan dye forming coupler represented by the following general formula (I): ##STR15## wherein R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; X represents a hydrogen atom or a group capable of being released upon an oxidative coupling reaction with a developing agent; and R 1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; with an alkaline aqueous developing solution containing a primary aromatic amine developing agent.
Claim 17
Independent Claim
121 words
A method of forming a color image comprising developing an imagewise exposed silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer and a cyan dye forming coupler represented by the following general formula (I): ##STR15## wherein R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; X represents a hydrogen atom or a group capable of being released upon an oxidative coupling reaction with a developing agent; and R 1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; with an alkaline aqueous developing solution containing a primary aromatic amine developing agent.
Claim 18
Dependent Claim
26 words
A method of forming a color image as claimed in claim 15, wherein the photographic material, after development, is subjected to processing in a bleach-fixing solution.
Claim 19
Dependent Claim
22 words
A method of forming a color image as claimed in claim 16, wherein the bleach-fixing solution contains an ethylenediaminetetraacetate iron (III) complex.
Claim 20
Dependent Claim
23 words
A method of forming a color image as claimed in claim 15, wherein the alkaline aqueous developing solution is free from benzyl alcohol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |