EP0326406A2
Expired / Lapsed
EP
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Silver halide photographic light-sensitive material
Assignee: Konica Minolta Inc
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Filing: 1989-01-27
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Granted: —
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Expires: 2009-01-27
Abstract
Abstract A silver halide photographic light-sensitive material is disclosed, which has excellent characteristics peculiar to pyrazoloazole type magenta couplers and yet good suitability to rapid processing, and shows improvement in the gradiation in respect of softning at the toe portion of characteristic curve thereof without impairment of the image preservability and other photographic properties. The photographic material comprises a support having there on a silver halide emulsion layer containing a silver halide grain having a silver chloride content of not less than 90 mole%, a compound represented by the following Formula I, and acompound capable of deactivating the oxidized product of a color developing agent with a relative reaction rate of not less than 1.6; wherein R₁, R₂ and R₃ each represent a substituent other than hydrogen atom, which may be the same as or different from each other; Z represents a group of non-metal atoms necessary for completing a heterocyclic ring which may have a substituent; X represents a hydrogen atom or a group capable of being split off upon reaction with the oxidized product of a color developing agent.
Inventors
- 👤 Tanji Masaki
- 👤 Toyoki Nishijima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 14:41
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/26; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/381; G03C7/382; G03C7/3825
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
134 words
A silver halide photographic light-sensitive material comprising a support having there on at least one silver halide emulsion layer containing a silver halide grain having a silver chloride content of not less than 90 mole%, a compound represented by the following Formula I, and a compound capable of deactivating the oxidized product of a color developing agent with a relative reaction rate of not less than 1.6; wherein R₁, R₂ and R₃ each represent a radical other than a hydrogen atom, which may be the same as or different from each other; Z represents a group of non-metal atoms necessary for completing a heterocyclic ring which may have a substituent; X represents a hydrogen atom or a group capable of being split off upon reaction with the oxidized product of a color developing agent.
Claim 2
Dependent Claim
134 words
A silver halide photographic light-sensitive material comprising a support having there on at least one silver halide emulsion layer containing a silver halide grain having a silver chloride content of not less than 90 mole%, a compound represented by the following Formula I, and a compound capable of deactivating the oxidized product of a color developing agent with a relative reaction rate of not less than 1.6; wherein R₁, R₂ and R₃ each represent a radical other than a hydrogen atom, which may be the same as or different from each other; Z represents a group of non-metal atoms necessary for completing a heterocyclic ring which may have a substituent; X represents a hydrogen atom or a group capable of being split off upon reaction with the oxidized product of a color developing agent.
Claim 3
Dependent Claim
126 words
The material of claim 1, wherein said radical represented by the R₁, R₂ or R₃ is a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl, an alkinyl group, an aryl group, a heterocyclic group, an acyl group, a sulfonyl group, a carbamoyl group, a sulfamoyl group, a sulfinyl group, a phosphonyl group, a cyano group, a spiro-compound residue, a bridged hydrocarbon compound residue, an alkoxy group, an aryloxy group, an heterocycloxy group, a siloxy group, an acyloxy group, a carbamoyloxy group, an amino group, an acylamino group, a sulfonamido group, an imido group, a ureido group, a sulfamoylamino group, an alkoxycarbamoylamino, an aryloxycarbamoylamino group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylthio group, an arylthio group or a heterocyclic thio group.
Claim 4
Dependent Claim
51 words
The material of claim 1, wherein said compound represented by Formula I is represented by the following Formula II, III, IV, V, VI or VII; wherein R₁, R₂ and R₃ are the same as defined in Formula 1; and R₄, R₅, R₆, R₇, R₈, R₉ and R₁₀ are each a substituent.
Claim 5
Dependent Claim
48 words
The material of claim 3, wherein said R₄, R₅, R₆, R₇, R₈, R₉ and R₁₀ are each a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an acylamino group, a benzamido group, an alkylamino group, an anilino group, an alkoxycarbonyl group or an alkylthio group.
Claim 6
Dependent Claim
29 words
The material of claim 1, wherein said compound capable of deactivating the oxidized product of a color developing agent has a relative reaction rate of from 1.6 to 15.
Claim 7
Dependent Claim
19 words
The material of claim 1, wherein said silver halide emulsion layer is a green sensitive silver halide emulsion layer.
Claim 8
Dependent Claim
43 words
The material of claim 6, wherein said compound capable of deactivating the oxdized product of a color developing agent is contained in said green-sensitive silver halide emulsion layer in an amount of from 1×10⁻⁴ mole to 5×10⁻¹ mole per mole of the coupler.
Claim 9
Dependent Claim
32 words
The material of claim 1, wherein said silver halide grains have a silver bromide content of not more than 10 mole% and a silver iodide content of not more than 0.5 mole%.
Claim 10
Dependent Claim
25 words
The material of claim 8, wherein said silver halide grains are silver chlorobromide having a silver bromide content of from 0.1 mole% to 2 mole%.
Claim 11
Dependent Claim
24 words
The material of claim 1, wherein said silver halide emulsion layer contains a high-boiling organic solvent having a dielectric constant of less than 6:0.
Claim 12
Dependent Claim
19 words
The material of claim 10, wherein said high-boiling organic solvent has a dielectric constant of from 1.9 to 6.0.
Claim 13
Dependent Claim
54 words
The material of claim 11, wherein said high-boiling organic solvent is represented by the following Formula HA; wherein R¹ and R² are each an alkyl group, an alkenyl group or a aryl group, provided that a total number of carbon atoms contained in the groups represented by R¹ and R² is 9 to 32.
Claim 14
Dependent Claim
56 words
The material of claim 11, wherein said high-boiling organic solvent is represented by the following Formula HB; wherein R³, R⁴ and R⁵ are each an alkyl group, an alkenyl group or an aryl group, provided that a total number of carbon atoms contained in the groups represented by R³, R⁴ and R⁵ is 24 to 54.
References Cited (Backward Citations)
No citation records indexed.
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