US4558002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic paper material with resin coatings and pigment mixture
Assignee: Fujifilm Holdings Corp
•
Filing: 1984-03-27
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Granted: 1985-12-10
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Expires: 2004-03-27
Abstract
Abstract A photographic paper material comprising (1) a paper support coated on both sides with a synthetic resin film, (2) a hydrophilic colloid layer containing a white pigment provided on one side of the paper support (1), and (3) a light-sensitive silver halide emulsion layer on the hydrophilic colloid layer (2), wherein a dye or pigment which is not decolored during photographic processing is present in the hydrophilic colloid layer (2) and/or the synthetic resin film on the paper support (1).
Inventors
- 👤 Yasuo Aotsuka
- 👤 Soichiro Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:37
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/775; G03C1/79
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
165 words
A photographic paper material comprising (1) a support comprised of a paper substrate which is coated on both sides with a synthetic hydrophobic resin film, (2) a hydrophilic colloid layer containing a white pigment provided on one side of the support (1), and (3) a light-sensitive silver halide emulsion layer on the hydrophilic colloid layer (2), wherein a dye or pigment having an absorption within the region of 500 to 800 nm and which is not decolored during photographic processing is present in the hydrophilic colloid layer (2) and/or the synthetic resin film of the support (1), wherein the colloid layer contains not less than 30% by volume of white pigment, and wherein the dye or pigment which is not decolored is present in an amount such that the surface reflection characteristics of the hydrophilic colloid layer containing the white pigment as measured and expressed according to JIS Z 8730 fall within the ranges of L=90 or more, A=0.5 to 1.5 and b=(-3) to (-5).
Claim 2
Dependent Claim
165 words
A photographic paper material comprising (1) a support comprised of a paper substrate which is coated on both sides with a synthetic hydrophobic resin film, (2) a hydrophilic colloid layer containing a white pigment provided on one side of the support (1), and (3) a light-sensitive silver halide emulsion layer on the hydrophilic colloid layer (2), wherein a dye or pigment having an absorption within the region of 500 to 800 nm and which is not decolored during photographic processing is present in the hydrophilic colloid layer (2) and/or the synthetic resin film of the support (1), wherein the colloid layer contains not less than 30% by volume of white pigment, and wherein the dye or pigment which is not decolored is present in an amount such that the surface reflection characteristics of the hydrophilic colloid layer containing the white pigment as measured and expressed according to JIS Z 8730 fall within the ranges of L=90 or more, A=0.5 to 1.5 and b=(-3) to (-5).
Claim 3
Dependent Claim
16 words
The material as claimed in claim 1, wherein the synthetic resin film is a polyethylene film.
Claim 4
Dependent Claim
14 words
The material as claimed in claim 1, wherein the white pigment is titanium dioxide.
Claim 5
Dependent Claim
29 words
The material as claimed in claim 1, wherein the hydrophilic colloid layer (2) containing a white pigment contains said dye or pigment which is not decolored during photographic processing.
Claim 6
Dependent Claim
50 words
The material as claimed in claim 1, wherein said hydrophilic colloid layer is in contact with said synthetic resin film on one side of the support, and said synthetic resin film which is in contact with the hydrophilic colloid layer contains said dye or pigment not decolored during photographic processing.
Claim 7
Dependent Claim
15 words
The material as claimed in claim 1, wherein the resin film is a polyolefin film.
Claim 8
Dependent Claim
16 words
The material as claimed in claim 1, wherein white pigment is present in the resin film.
Claim 9
Dependent Claim
55 words
The material as claimed in claim 1, wherein the dye or pigment which is not decolored is present in the synthetic resin film layer and is employed in an amount such that the surface reflection rate of the resin layer determined according to JIS Z 8730 is 70% or less at 400 to 700 nm.
References Cited (Backward Citations)
US3369901A
Cited
US3501298A
Cited
US3582339A
Cited
US4169188A
Cited
US4220471A
Cited
US4237206A
Cited
US4296198A
Cited
US4209584A
Cited
US4312937A
Cited
JPS64325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |