US4563406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive silver halide photographic material with white layer and colorant containing layer
Assignee: Konica Minolta Inc
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Filing: 1984-07-12
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Granted: 1986-01-07
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Expires: 2004-07-12
Abstract
Abstract There is disclosed a light-sensitive silver halide photographic material having a white pigment containing layer and at least one silver halide emulsion layer provided successively on a support, being characterized in that there is provided a colorant containing layer capable of being made substantially colorless by a photographic treatment between said support and said white pigment containing layer. The present invention provides a light-sensitive silver halide photographic material having a reflective support improved to a great extent in sharpness substantially without bringing about lowering in sensitivity.
Inventors
- 👤 Keiji Ohbayashi
- 👤 Kaoru Onodera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:03
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
127 words
A light-sensitive silver halide photographic element comprising a support having successively thereon a colorant containing layer, a white pigment containing layer and at least one silver halide emulsion layer; said colorant containing layer containing a colorant selected from the group consisting of a yellow colloidal silver, a grey colloidal silver, a blue colloidal silver and a filter dye, said colorant containing layer being capable of transmitting light in an amount of up to 50% and being capable of being made substantially colorless by a photographic treatment; said white pigment containing layer being permeable to a photographic treating solution and wherein the white pigment in said white pigment containing layer is present in an amount sufficient to maintain the white color of the pigment when viewing said element.
Claim 2
Dependent Claim
127 words
A light-sensitive silver halide photographic element comprising a support having successively thereon a colorant containing layer, a white pigment containing layer and at least one silver halide emulsion layer; said colorant containing layer containing a colorant selected from the group consisting of a yellow colloidal silver, a grey colloidal silver, a blue colloidal silver and a filter dye, said colorant containing layer being capable of transmitting light in an amount of up to 50% and being capable of being made substantially colorless by a photographic treatment; said white pigment containing layer being permeable to a photographic treating solution and wherein the white pigment in said white pigment containing layer is present in an amount sufficient to maintain the white color of the pigment when viewing said element.
Claim 3
Dependent Claim
20 words
The light-sensitive silver halide photographic element according to claim 1, wherein the amount of light transmittance is up to 30%.
Claim 4
Dependent Claim
24 words
The light-sensitive silver halide photographic element according to claim 1, wherein said filter dye is an acidic dye containing sulfonyl groups or carboxyl groups.
Claim 5
Dependent Claim
44 words
The light-sensitive silver halide photographic element according to claim 3, wherein said acidic dye is selected from the group consisting of an azo type, a triphenylmethane type, an anthraquinone type, a styryl type, a benzylidene type, a melocyanine type and an oxonol type dye.
Claim 6
Dependent Claim
32 words
The light-sensitive silver halide photographic element according to claim 4, wherein said acidic dye is selected from the group consisting of the compounds (F-1) to (F-15) represented by the following formulas: ##STR5##
Claim 7
Dependent Claim
21 words
The light-sensitive silver halide photographic element according to claim 1, wherein said filter dye is used in combination with a mordant.
Claim 8
Dependent Claim
32 words
The light sensitive silver halide photographic element according to claim 6, wherein said mordant is a macromolecular mordant having basic groups selected from imidazolyl, pyridyl, alkylaminoalkyl, quarternary salts thereof and aminoguanidyl groups.
Claim 9
Dependent Claim
31 words
The light-sensitive silver halide photographic element according to claim 1, wherein said white pigment is selected from titanium dioxide, barium sulfate, zinc oxide, barium stearate, silica, alumina, zirconium oxide and kaolin.
Claim 10
Dependent Claim
17 words
The light-sensitive silver halide photographic element according to claim 8, wherein said white pigment is titanium dioxide.
Claim 11
Dependent Claim
34 words
The light-sensitive silver halide photographic element according to claim 9, wherein said support is a transparent base and said titanium dioxide is present in an amount of from 10 to 50 g/m 2 .
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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) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |