Patent US4040829A successfully refreshed from Google Patents.
US4040829A
Expired / Lapsed
US
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Multilayer multicolor photographic materials
Assignee: Fujifilm Holdings Corp
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Filing: 1975-06-04
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Granted: 1977-08-09
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Expires: 1995-06-04
Abstract
Abstract An incorporated-dye image forming coupler type multilayer multicolor photographic material comprising a support having thereon at least two silver halide emulsion layers each of which is sensitive to a different spectral wavelength range, with the silver halide emulsion layer which first receives light at image exposure being positioned so that the light is received through a non-sensitive hydrophilic layer containing a semidiffusible color coupler which forms a dye image having a substantially complimentary color to the sensitive wavelength range of the silver halide emulsion layer first receiving light at image exposure and which has a diffusion coefficient of from about 0.25 to 0.80 as defined by the relationship diffusion coefficient = D.sub.B /D.sub.A wherein D A is the color density formed by the color coupler where the color coupler is present in the same layer as silver halide particles, developed without imagewise exposure, and D B is the color density obtained with the color coupler incorporated in a layer which does not contain silver halide particles on a layer which contains silver halide particles, developed without imagewise exposure, the components thereof, amounts thereof and production conditions thereof being the same and the development conditions thereof being the same and with the layers being adjusted using a hardening agent so that the coefficient of expansion of the layers in water at a pH of 7.0 and 25° C does not exceed 400%.
Inventors
- 👤 Hideki Ohmatsu
- 👤 Hirozo Ueda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:38
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
272 words
An incorporated-dye image forming coupler type multilayer photographic material comprising a support having thereon a silver halide emulsion layer which is sensitive to a first wavelength region of the visible spectrum, a silver halide emulsion layer thereon which is sensitive to a second wavelength region of the visible spectrum and thereon a silver halide emulsion layer which is sensitive to a third wavelength region of the visible spectrum, wherein the silver halide emulsion layer which receives first the light at image exposure is positioned so that said layer first receiving said light receives the light through a non-sensitive hydrophilic layer containing a semi-diffusible coupler which can form a dye image having a substantially complementary color to the sensitive wavelength range of said silver halide emulsion layer first receiving light at image exposure and which has a diffusion coefficient of from about 0.25 to 0.80 as defined by the relationship diffusion coefficient = D.sub.B /D.sub.A wherein D A is the color density formed by the color coupler where the color coupler is present in the same layer as silver halide particles developed without imagewise exposure, and D B is the color density obtained with the color coupler incorporated in a layer which does not contain silver halide particles on a layer which contains silver halide particles developed without image-wise exposure, the components thereof, amounts thereof and production conditions thereof being the same and the development conditions thereof being the same and with the layers being adjusted using a hardening agent so that the coefficient of expansion of the layers in water at a pH of 7.0 to 25° C. does not exceed 400%.
Claim 2
Dependent Claim
272 words
An incorporated-dye image forming coupler type multilayer photographic material comprising a support having thereon a silver halide emulsion layer which is sensitive to a first wavelength region of the visible spectrum, a silver halide emulsion layer thereon which is sensitive to a second wavelength region of the visible spectrum and thereon a silver halide emulsion layer which is sensitive to a third wavelength region of the visible spectrum, wherein the silver halide emulsion layer which receives first the light at image exposure is positioned so that said layer first receiving said light receives the light through a non-sensitive hydrophilic layer containing a semi-diffusible coupler which can form a dye image having a substantially complementary color to the sensitive wavelength range of said silver halide emulsion layer first receiving light at image exposure and which has a diffusion coefficient of from about 0.25 to 0.80 as defined by the relationship diffusion coefficient = D.sub.B /D.sub.A wherein D A is the color density formed by the color coupler where the color coupler is present in the same layer as silver halide particles developed without imagewise exposure, and D B is the color density obtained with the color coupler incorporated in a layer which does not contain silver halide particles on a layer which contains silver halide particles developed without image-wise exposure, the components thereof, amounts thereof and production conditions thereof being the same and the development conditions thereof being the same and with the layers being adjusted using a hardening agent so that the coefficient of expansion of the layers in water at a pH of 7.0 to 25° C. does not exceed 400%.
Claim 3
Dependent Claim
15 words
The photographic material of claim 1, wherein said diffusion coefficient ranges from 0.35 to 0.60.
Claim 4
Dependent Claim
23 words
The photographic material of claim 1, wherein said silver halide emulsion layer which first receives light is a blue-sensitive silver halide emulsion layer.
Claim 5
Dependent Claim
43 words
The photographic material of claim 1, wherein said semi-diffusible color coupler is a phenol coupler, an α-naphthol coupler, an acylacetonitrile coupler, an acylacetamide coupler, a 1,3-diketone coupler, a 1,3-indanedione coupler, a pyrimidazolone coupler, a 5-pyrazolone coupler, a 3-imidazolone coupler or a pyrazolobenzimidazole coupler.
Claim 6
Dependent Claim
25 words
The photographic material of claim 4, wherein the semi-diffusible color coupler is a phenol coupler, an α-naphthol coupler, a 5-pyrazolone coupler or an acylacetamide coupler.
Claim 7
Dependent Claim
228 words
The photographic material of claim 5, wherein said semi-diffusible color coupler is a compound selected from the group consisting of color couplers represented by the formula (I): ##STR5## wherein R 1 represents an alkyl group, an aryl group or a heterocyclic group; R 2 represents an aryl group; and Z 1 represents a hydrogen atom or a coupling releasable group; of the following formula (II): ##STR6## wherein R 3 represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a heterocyclic group, an amino group, a carbonamido group, a sulfonamido group or a ureido group; R 4 represents an alkyl group, an aryl group or a heterocyclic group and Z 2 represents a hydrogen atom or a coupling releasable group; or by the following formulas (III) and (IV) ##STR7## wherein R 5 represents an alkyl group, an aryl group, a heterocyclic group, an amino group, a carbonamido group, a sulfonamido group, a carbamoyl group or a sulfamoyl group; R 6 , R 7 and R 8 , which may be the same or different, each represents the groups as defined for R 5 and in addition represents a hydrogen atom, a halogen atom or an alkoxy group; R 9 represents a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group or an aryloxycarbonyl group; and Z 3 represents a hydrogen atom or a coupling releasable group.
Claim 8
Dependent Claim
16 words
The photographic material of claim 6, wherein said semi-diffusible color coupler has the general formula (I).
Claim 9
Dependent Claim
13 words
The photographic material of claim 6, wherein said semi-diffusible color coupler is: ##STR8##
Claim 10
Dependent Claim
26 words
The photographic material of claim 1, wherein said non-sensitive hydrophilic layer contains said semi-diffusible color coupler in a hydrophilic high molecular weight material as a binder.
Claim 11
Dependent Claim
64 words
The photographic material of claim 1, wherein the amount of the semi-diffusible color coupler in the non-sensitive hydrophilic layer ranges from about 0.05 to 0.5 mol per mol of the silver halide in the silver halide emulsion layer for which the semi-diffusible color coupler forms a dye image having a substantially complementary color to the sensitive wavelength range of the silver halide emulsion layer.
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) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |