Patent US3303775A successfully refreshed from Google Patents.
Patent US4806460A successfully refreshed from Google Patents.
US4806460A
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US
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Multilayer silver halide color photographic materials
Assignee: Fujifilm Holdings Corp
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Filing: 1987-10-26
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Granted: 1989-02-21
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Expires: 2007-10-26
Abstract
Abstract A multilayer silver halide color photographic material is described, comprising a support having thereon at least two light-sensitive silver halide emulsion layers, each having a different color sensitivity, and having associated therewith dye-forming agents forming imaging dyes, each having a different hue, wherein at least one dye of a hue substantially not contributing to the formation of the hue of a specific image of a region that the image density of at least one of said imaging dyes is above a definite density value of from 1.2 to 2.5 is provided so as to provide gradation to the specific image region.
Inventors
- 👤 Tadashi Ogawa
- 👤 Koji Takahashi
- 👤 Seiichi Taguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:33
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3041
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
228 words
A multilayer silver halide color photographic material comprising a reflective support having thereon at least two light-sensitive silver halide emulsion layers (A) and (B), each of the emulsion layers (A) and (B) having a different spectral sensitivity and each of the emulsion layers (A) and (B) containing at lest one dye-forming agent which forms an imaging dye of a different hue in the emulsion layer (A) and (B) on processing; wherein when at least one of said emulsion layers (A) and (B) yields a dye image by processing after image wise exposure, at least one another dye-forming agent (C), on the processing, yields a dye of a hue substantially different from at least one of the hue of the layers (A) and (B) in which the dye formed by the dye-forming agent (C) is present in the region where the image density of the at least one imaging dye is over a definite density value in the range of 1.3 to 2.0, whereby said at least one dye-forming agent (C) provides gradation to the region over the definite density value of from 1.3 to 2.0, the different hue due to the dye-forming agent (C) not being added to a density region in which the density is not more than the definite value, wherein any dye-forming agent is not a development inhibitor releasing coupler and not a colored coupler.
Claim 2
Dependent Claim
228 words
A multilayer silver halide color photographic material comprising a reflective support having thereon at least two light-sensitive silver halide emulsion layers (A) and (B), each of the emulsion layers (A) and (B) having a different spectral sensitivity and each of the emulsion layers (A) and (B) containing at lest one dye-forming agent which forms an imaging dye of a different hue in the emulsion layer (A) and (B) on processing; wherein when at least one of said emulsion layers (A) and (B) yields a dye image by processing after image wise exposure, at least one another dye-forming agent (C), on the processing, yields a dye of a hue substantially different from at least one of the hue of the layers (A) and (B) in which the dye formed by the dye-forming agent (C) is present in the region where the image density of the at least one imaging dye is over a definite density value in the range of 1.3 to 2.0, whereby said at least one dye-forming agent (C) provides gradation to the region over the definite density value of from 1.3 to 2.0, the different hue due to the dye-forming agent (C) not being added to a density region in which the density is not more than the definite value, wherein any dye-forming agent is not a development inhibitor releasing coupler and not a colored coupler.
Claim 3
Dependent Claim
70 words
A multilayer silver halide color photographic material as in claim 1, comprising a support having thereon a cyan-coloring coupler-containing red-sensitive silver halide emulsion layer, a magenta-coloring coupler-containing green-sensitive silver halide emulsion, and a yellow-coloring coupler-containing blue-sensitive silver halide emulsion layer, wherein a cyan gradation is added to a specific image region in which the density of a magenta image is over a definite density value of from 1.3 to 2.0.
Claim 4
Dependent Claim
22 words
A multilayer silver halide color photographic material as in claim 1, wherein any dye-forming agent is a coupler providing a colored dye.
Claim 5
Dependent Claim
48 words
A multilayer silver halide color photographic material as in claim 1, wherein the density region in which said dye of a hue substantially not contributing to the formation of the hue of a specific image of region is provided in a density region of from 1.4 to 1.6.
Claim 6
Dependent Claim
22 words
A multilayer silver halide color photographic material as in claim 1, wherein any dye-forming agent is a coupler releasing a development accelerator.
Claim 7
Dependent Claim
39 words
A multilayer silver halide color photographic material as in claim 2, wherein the cyan gradation is added to a specific region wherein the density of a magenta image is provided in a density region of from 1.4 to 1.6.
Claim 8
Dependent Claim
34 words
A multilayer silver halide color photographic material as in claim 1, wherein the dye-forming agents are photographic couplers capable of forming colored dyes by causing the oxidative coupling with aromatic primary amine developing agent.
Claim 9
Dependent Claim
21 words
A multilayer silver halide color photographic material as in claim 1, wherein any dye-forming agent is a redox dye releasing compound.
Claim 10
Dependent Claim
37 words
A multilayer silver halide color photographic material as in claim 1, comprising a cyan-coloring coupler-containing red-sensitive silver halide emulsion layer, a magenta-coloring coupler-containing green-sensitive silver halide emulsion layer, and a yellow-coloring coupler-containing blue-sensitive silver halide emulsion layer.
Claim 11
Dependent Claim
40 words
A multilayer silver halide color photographic material as in claim 1, comprising a cyan dye releasing red-sensitive silver halide emulsion layer, a magenta dye releasing green-sensitive silver halide emulsion layer, and a yellow dye releasing blue-sensitive silver halide emulsion layer.
Claim 12
Dependent Claim
41 words
A multilayer silver halide color photographic material as in claim 1, wherein a cyan gradation is added to a specific image region in which the density of a magenta image is over a definite density value of from 1.3 to 2.0.
Claim 13
Dependent Claim
41 words
A multilayer silver halide color photographic material as in claim 1, wherein a cyan gradation is added to a specific hue region in which the density of a magenta image is over a definite density value of from 1.4 to 1.6.
Claim 14
Dependent Claim
31 words
A multilayer silver halide color photographic material as in claim 1, wherein the photographic material is a color photographic paper, a color photographic positive film, and a reversal color photographic paper.
Claim 15
Dependent Claim
29 words
A multilayer of silver halide color photographic material as in claim 1, wherein the dye-forming agent (C) is the same dye-forming agent as in the layer (A) or (B).
Claim 16
Dependent Claim
34 words
A multilayer silver halide color photographic material as in claim 1, wherein the support is a paper which is laminated by an α-olefin polymer comprising a barayta layer coated paper or a white pigment.
Claim 17
Dependent Claim
30 words
A multilayer silver halide color photographic material as in claim 1, wherein the cyan gradation is added by which the cyan-coloring red-sensitive silver halide emulsion layer is additionally green sensitized.
Claim 18
Dependent Claim
41 words
A multilayer silver halide color photographic material as in claim 16, wherein a cyan gradation is added to a specific image region in which the density of a magenta image is over a definite density value of from 1.3 to 2.0.
Claim 19
Dependent Claim
41 words
A multilayer silver halide color photographic material as in claim 16, wherein a cyan gradation is added to a specific image region in which the density of a magenta image is over a definite density value of from 1.4 to 1.6.
Claim 20
Dependent Claim
65 words
A multilayer silver halide color photographic material as in claim 11, comprising a reflective support having thereon at least one cyan-coloring red-sensitive silver halide emulsion layer, at least two different sensitive magenta-coloring green-sensitive silver halide emulsion layer, and at least one yellow-coloring blue-sensitive silver halide emulsion layer, wherein a magenta-coloring green-sensitive silver halide emulsion layer which is not the maximum density is magenta-coloring and cyan-coloring.
Claim 21
Dependent Claim
103 words
A multilayer silver halide color photographic material as in claim 11, comprising a support having thereon a cyan-coloring red-sensitive silver halide emulsion layer, a magenta-coloring green-sensitive silver halide emulsion layer, and a yellow-coloring blue-sensitive silver halide emulsion layer, wherein a cyan-coloring red-sensitive silver halide emulsion layer is disposed adjacent to a magenta-coloring green-sensitive silver halide emulsion layer, and the content of a coloring mixing preventing layer between the above two layers is present is such that the color mixing preventing layer causes the cyan mixing when the density of a magenta image is over the definite density value of from 1.2 to 2.5.
Claim 22
Dependent Claim
92 words
A multilayer silver halide color photographic material as in claim 1, wherein at least one emulsion layer of a cyan-coloring red-sensitive emulsion layer, a magenta-coloring green-sensitive emulsion layer and a yellow-coloring blue-sensitive emulsion layer is spectrally sensitized for a wavelength region corresponding to a part or the whole of the complementary colors of the spectral sensitization distribution thereof and the sensitivity of said emulsion layer is adjusted to a value properly lower than those of other light-sensitive emulsion layer(s) which are fundamentally sensitive to an exposure light corresponding to the complementary color.
Claim 23
Dependent Claim
22 words
A multilayer silver halide color photographic material as in claim 21, wherein the cyan-coloring red-sensitive emulsion layer is also green- and/or blue-sensitized.
Claim 24
Dependent Claim
112 words
A multilayer silver halide color photographic material as in claim 1, wherein at least one layer of a red-sensitive emulsion layer, a green-sensitive emulsion layer and a blue-sensitive emulsion layer is constructed of at least one high-speed emulsion layer and at least one low-speed emulsion layer and dye-forming agents are incorporated in these emulsion layers in such a manner that in the high-speed emulsion layer, the complementary color to the color of sensitive light for the high-speed emulsion layer is formed and in the low-speed emulsion layer, the complementary color to the color of the sensitive light for the low-speed emulsion layer and colors other than the complementary color are simultaneously formed.
Claim 25
Dependent Claim
57 words
A multilayer silver halide color photographic material as in claim 23, wherein the green-sensitive emulsion layer and/or the blue-sensitive emulsion layer is (are) constructed of at least one high-speed emulsion layer and at least one low-speed emulsion layer and a cyan-forming agent is incorporated with a magenta-forming agent or a yellow-forming agent in the low-speed emulsion layer.
Claim 26
Dependent Claim
84 words
A multilayer silver halide color photographic material as in claim 1, wherein at least one of a red-sensitive emulsion layer, a green-sensitive emulsion layer and a blue-sensitive emulsion layer is constructed of a high-speed emulsion layer and a low-speed emulsion layer and the low-speed emulsion layer is disposed adjacent to another color-sensitive emulsion layer or an interlayer having only a limited color mixing-preventing faculty is formed between the low-speed emulsion layer and another layer to which the oxidation product of color developing agent diffuses.
Claim 27
Dependent Claim
38 words
A multilayer silver halide color photographic material as in claim 25, wherein the interlayer is disposed adjacent to the green-sensitive emulsion layer and the red-sensitive emulsion layer, or to the blue-sensitive emulsion layer and the red-sensitive emulsion layer.
Claim 28
Dependent Claim
66 words
A multilayer silver halide color photographic material as in claim 1, wherein at least one layer of a red-sensitive emulsion layer, a green-sensitive emulsion layer and a blue-sensitive emulsion layer is constructed of a high-speed emulsion layer and a low-speed emulsion layer and a diffusible development accelerator-releasing coupler is incorporated in the low-speed emulsion layer and the development accelerator is diffused over a color mixing-preventing layer.
Claim 29
Dependent Claim
42 words
A multilayer silver halide color photographic material as in claim 27, wherein the diffusible development accelerator-releasing coupler is incorporated in the green-sensitive emulsion layer and/or the blue-sensitive emulsion layer so as to diffuse the released development accelerator into the red-sensitive emulsion layer.
Claim 30
Dependent Claim
50 words
A multilayer halide color photographic material as in claim 1, wherein the said other dye-forming agent forms, by said processing, a dye substantially not contributing to the formation of the density of the said dye images at said density region over a definite density value of from 1.3 to 2.0.
References Cited (Backward Citations)
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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) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |