Patent US5262290A successfully refreshed from Google Patents.
US5262290A
Expired / Lapsed
US
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Silver halide color photographic light sensitive material
Assignee: Konica Minolta Inc
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Filing: 1992-04-17
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Granted: 1993-11-16
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Expires: 2012-04-17
Abstract
Abstract A silver halide light-sensitive material is disclosed, which has high light-sensitive speed and improved gradation and sharpness. The light-sensitive material comprises a paper substrate which has polyolefin resin layers on both sides thereof, and a silver halide emulsion layer provided on one of the polyolefin layers. The polyolefin layer on which the silver halide emulsion layer to be provided contains white pigment particles in an amount of not less than 13 weight percent of the polyolefin resin contained in the polyolefin layer, and surface of the polyolefin layer on which the emulsion layer to be provided has a di-dimensional arithmetical mean deviation of the profile, SRa, of not larger than 0.14 μm, and the silver halide emulsion layer comprises at least two kinds of monodispersed silver halide emulsions each having a silver chloride content of not less than 90 mole % and being different from each other in speed.
Inventors
- 👤 Hiroshi Nakatsugawa
- 👤 Takaaki Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:59
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C7/00; G03C7/30; G03C7/3022
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
199 words
A silver halide photographic light-sensitive material comprising a paper substrate which has polyolefin resin layers on both sides thereof, and a silver halide emulsion layer provided on one of said polyolefin layers, wherein said polyolefin layer on which said silver halide emulsion layer to be provided contains white pigment particles in an amount of not less than 13 weight percent of a polyolefin resin contained in said polyolefin layer, and the surface of said polyolefin layer on which said silver halide emulsion layer to be provided has a di-dimensional arithmetical means deviation of the profile, SRa, of not larger than 0.14 μm, said SRa is calculated by the following Equation I, and said silver halide emulsion layer comprises at least two kinds of monodispersed silver halide emulsions each having a silver chloride content of not less than 90 mole % and being different from each other in speed thereof and a yellow coupler: ##EQU5## wherein Lx is the length of measuring area of specimen in X-axis direction of 5 mm and Ly is the length of measuring area of specimen in Y-axis direction of 1 mm and SM is the measuring area of specimen of 5 mm 2 .
Claim 2
Dependent Claim
199 words
A silver halide photographic light-sensitive material comprising a paper substrate which has polyolefin resin layers on both sides thereof, and a silver halide emulsion layer provided on one of said polyolefin layers, wherein said polyolefin layer on which said silver halide emulsion layer to be provided contains white pigment particles in an amount of not less than 13 weight percent of a polyolefin resin contained in said polyolefin layer, and the surface of said polyolefin layer on which said silver halide emulsion layer to be provided has a di-dimensional arithmetical means deviation of the profile, SRa, of not larger than 0.14 μm, said SRa is calculated by the following Equation I, and said silver halide emulsion layer comprises at least two kinds of monodispersed silver halide emulsions each having a silver chloride content of not less than 90 mole % and being different from each other in speed thereof and a yellow coupler: ##EQU5## wherein Lx is the length of measuring area of specimen in X-axis direction of 5 mm and Ly is the length of measuring area of specimen in Y-axis direction of 1 mm and SM is the measuring area of specimen of 5 mm 2 .
Claim 3
Dependent Claim
29 words
The light-sensitive material of claim 1, wherein white pigment is contained in said polyolefin resin layer in an amount of 13 to 50% by weight of said polyolefin resin.
Claim 4
Dependent Claim
23 words
The light-sensitive material of claim 1, wherein the thickness of said polyolefin resin layer containing said white pigment is 5 to 200 μm.
Claim 5
Dependent Claim
23 words
The light-sensitive material of claim 3, wherein the thickness of said polyolefin resin layer containing said white pigment is 30 to 100 μm.
Claim 6
Dependent Claim
26 words
The light-sensitive material of claim 1, wherein said di-dimensional arithmetical mean deviation of the profile SRa is within the range of 0.05 μm to 0.14 μm.
Claim 7
Dependent Claim
16 words
The light-sensitive material of claim 1, wherein said white pigment is barium sulfate or titanium oxide.
Claim 8
Dependent Claim
13 words
The light-sensitive material of claim 6, wherein said white pigment is titanium oxide.
Claim 9
Dependent Claim
23 words
The light-sensitive material of claim 1, wherein said silver halide emulsions each comprises silver chlorobromide grains containing 95 mol % of silver chloride.
Claim 10
Dependent Claim
23 words
The light-sensitive material of claim 8, wherein said silver halide emulsions each comprises silver chlorobromide grains containing 99 mol % of silver chloride.
Claim 11
Dependent Claim
28 words
The light-sensitive material of claim 1, wherein the difference of said two kinds of silver halide emulsions in the speed is 0.05 to 0.6 in terms of logE.
Claim 12
Dependent Claim
27 words
The light-sensitive material of claim 10, wherein the difference of said two kinds of silver halide emulsions in speed is 0.1 to 0.5 in terms of logE.
Claim 13
Dependent Claim
24 words
The light-sensitive material of claim 1, wherein said silver halide emulsions each has a variation coefficient of grain size of not more than 0.22.
Claim 14
Dependent Claim
24 words
The light-sensitive material of claim 12, wherein said silver halide emulsions each has a variation coefficient of grain size of not more than 0.15.
Claim 15
Dependent Claim
87 words
The light-sensitive material of claim 1, wherein said emulsion layer contains a yellow coupler represented by Formula Y-1: ##STR63## wherein R 1 is an alkyl group or a cycloalkyl group; R 2 is an alkyl group, a cycloalkyl group, an acyl group or an aryl group; R 3 is a substituent; n is 0 or 1; X 1 is a hydrogen atom or a substituent capable of splitting off upon reaction with the oxidation product of a color developing agent; and Y 1 is an organic group.
Claim 16
Dependent Claim
55 words
The light-sensitive material of claim 1, wherein white pigment is contained in said polyolefin resin layer in an amount of 13 to 60% by weight of said polyolefin resin; the thickness of said polyolefin resin layer contained said white pigment is 5 to 200 μm; and said white pigment is barium sulfate or titanium oxide.
Claim 17
Dependent Claim
43 words
The light-sensitive material of claim 3, wherein the thickness of said polyolefin resin layer containing said white pigment is 30 to 100 μm; and said di-dimensional arithmetical means deviation of the profile SRa is within the range of 0.05 μm to 0.14 μm.
Claim 18
Dependent Claim
55 words
The light-sensitive material of claim 14, wherein white pigment is contained in said polyolefin resin layer in an amount of 13 to 50% by weight of said polyolefin resin; the thickness of said polyolefin resin layer contained said white pigment is 5 to 200 μm; and said white pigment is barium sulfate or titanium oxide.
Claim 19
Dependent Claim
43 words
The light-sensitive material of claim 17, wherein the thickness of said polyolefin resin layer containing said white pigment is 30 to 100 μm; and said di-dimensional arithmetical means deviation of the profile SRa is within the range of 0.05 μm to 0.14 μm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-15 | 1997-05-17 | 1997-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-15 | 2001-05-17 | 2001-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-15 | 2005-05-17 | 2005-11-16 | $7700.00 | Window Closed / Lapsed |