US6296995B1
Expired / Lapsed
US
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Digital photographic element with biaxially oriented polymer base
Assignee: Eastman Kodak Co
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Filing: 2000-01-11
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Granted: 2001-10-02
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Expires: 2020-01-11
Abstract
Abstract The invention relates to A reflective base photographic element comprising a support material comprising a microvoided biaxially oriented polymer sheet having an upper surface L* of at least 93.5 and imaging layers wherein said imaging layers have an exposure range of between 125 to 0.5 when there is a Status A reflection density shoulder loss of no more than 8 percent as a function of the cyan record, wherein said photographic element has an exposure range of at least 125 nanoseconds to 0.5 seconds when there is a Status A reflection density shoulder loss of no more than 8 percent as a function of the magenta color record, wherein said photographic element has an exposure range of at least 125 nanoseconds to 0.5 seconds when there is a Status A reflection density shoulder loss of no more than 4 percent as a function of the yellow color record, and wherein said photographic element has a Status A reflection density minimum of less than 0.100 in the cyan layer, has a Status A reflection density minimum of less than 0.100 in the magenta layer, has a Status A reflection density minimum of less than 0.08 in the yellow layer, and a modulation transfer function (MTF) of at least 78.0, and a cyan Dmax of at least 2.53, a magenta Dmax of at least 2.34, and a yellow Dmax of at least 2.16.
Inventors
- 👤 Alphonse D. Camp
- 👤 Peter T. Aylward
- 👤 Robert P. Bourdelais
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:54
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C7/00; G03C7/30; G03C7/3041; G03C1/005; G03C1/06; G03C1/08; G03C1/09; G03C1/79; G03C1/795; G03C1/7954; G03C2001/093; G03C1/7614; G03C2001/7628; G03C7/3029
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
261 words
A reflective base photographic element comprising a support material comprising a microvoided biaxially oriented polymer sheet having an upper surface L* of at least 94.2 and photosensitive silver halide containing imaging layers wherein said imaging layers have an exposure range of between 125 to 0.5 when there is a Status A reflection density shoulder loss of no more than 8 percent as a function of the cyan record, wherein said photographic element has an exposure range of at least 125 nanoseconds to 0.5 seconds when there is a Status A reflection density shoulder loss of no more than 8 percent as a function of the magenta color record, wherein said photographic element has an exposure range of at least 125 nanoseconds to 0.5 seconds when there is a Status A reflection density shoulder loss of no more than 4 percent as a function of the yellow color record, and wherein said photographic element has a Status A reflection density minimum of less than 0.100 in the cyan layer, has a Status A reflection density minimum of less than 0.100 in the magenta layer, has a Status A reflection density minimum of less than 0.08 in the yellow layer, and a modulation transfer function (MTF) of at least 78.0, and a cyan Dmax of at least 2.53, a magenta Dmax of at least 2.34, and a yellow Dmax of at least 2.16 wherein between the photosensitive layers and a microvoided layer of an upper microvoided sheet there is at least one layer of polypropylene comprising between 18 and 24% TiO 2 .
Claim 2
Dependent Claim
261 words
A reflective base photographic element comprising a support material comprising a microvoided biaxially oriented polymer sheet having an upper surface L* of at least 94.2 and photosensitive silver halide containing imaging layers wherein said imaging layers have an exposure range of between 125 to 0.5 when there is a Status A reflection density shoulder loss of no more than 8 percent as a function of the cyan record, wherein said photographic element has an exposure range of at least 125 nanoseconds to 0.5 seconds when there is a Status A reflection density shoulder loss of no more than 8 percent as a function of the magenta color record, wherein said photographic element has an exposure range of at least 125 nanoseconds to 0.5 seconds when there is a Status A reflection density shoulder loss of no more than 4 percent as a function of the yellow color record, and wherein said photographic element has a Status A reflection density minimum of less than 0.100 in the cyan layer, has a Status A reflection density minimum of less than 0.100 in the magenta layer, has a Status A reflection density minimum of less than 0.08 in the yellow layer, and a modulation transfer function (MTF) of at least 78.0, and a cyan Dmax of at least 2.53, a magenta Dmax of at least 2.34, and a yellow Dmax of at least 2.16 wherein between the photosensitive layers and a microvoided layer of an upper microvoided sheet there is at least one layer of polypropylene comprising between 18 and 24% TiO 2 .
Claim 3
Dependent Claim
32 words
The element of claim 1 wherein said element comprises a paper sheet below said biaxially oriented polymer sheet and a biaxially oriented polymer sheet on the side opposite said photosensitive imaging layers.
Claim 4
Dependent Claim
42 words
The element of claim 1 wherein silver halide grains of the imaging layers of said full color photographic element are comprised of at least 90 percent silver chloride and further comprise an iridium coordination complex containing a thiazole or substituted thiazole ligand.
Claim 5
Dependent Claim
83 words
The element of claim 3 further comprising a hexacoordination metal complex which satisfies the formula: [ML 6 ] n (I) wherein n is zero, −1, −2, −3 or −4; M is a filled frontier orbital polyvalent metal ion, other than iridium; and L 6 represents bridging ligands which can be independently selected, provided that at least four of the ligands are anionic ligands, and at least one of the ligands is a cyano ligand or a ligand more electronegative than a cyano ligand.
Claim 6
Dependent Claim
15 words
The element of claim 1 wherein the biaxially oriented polymer sheet comprises a polyester sheet.
Claim 7
Dependent Claim
20 words
The element of claim 1 wherein none of the silver halide containing layers contain greater than 0.25 mg/m 2 silver.
Claim 8
Dependent Claim
18 words
The element of claim 1 wherein the biaxially oriented polymer sheet comprises at least one layer comprising polyethylene.
Claim 9
Dependent Claim
14 words
The element of claim 1 wherein said substrate has an L* greater than 95.0.
Claim 10
Dependent Claim
103 words
A radiation-sensitive emulsion according to claim 3 wherein a class (i) dopant is located within the central portion of grains in an interior region surrounding at least 50 percent of the total silver forming the grains and is present in a concentration of from 10 −8 to 10 −3 mole per mole of silver, and a class (ii) dopant is located within the central portion of the grains in a sub-surface shell region surrounding at least 50 percent of the total silver forming the grains and is present in a concentration of from 10 −9 to 10 −4 mole per mole of silver.
Claim 11
Dependent Claim
19 words
The element of claim 1 wherein the biaxially oriented polymer sheet comprises at least one layer comprising optical brightener.
Claim 12
Dependent Claim
22 words
The element of claim 1 further comprising a paper base that has an apparent density of between 1.05 grams/cc and 1.21 grams/cc.
Claim 13
Dependent Claim
25 words
The element of claim 1 wherein there is provided between said overlaying biaxially oriented polymer sheet and a base an adhesive layer comprising white pigments.
Claim 14
Dependent Claim
22 words
The element of claim 2 wherein the opposite side biaxially oriented polymer sheet is provided with multicolor indicia on the upper side.
Claim 15
Dependent Claim
18 words
The element of claim 2 wherein said paper base is provided with multicolor indicia on its lower surface.
Claim 16
Dependent Claim
123 words
The element of claim 1 wherein said element comprises wherein R a and R b independently represent H or a substituent; X is hydrogen or a coupling-off group; and Z a , Z b , and Z c are independently a substituted methine group, ═N—, ═C—, or —NH—, provided that one of either the Z a —Z b bond or the Z b —Z c bond is a double bond and the other is a single bond, and when the Z b —Z c bond is a carbon-carbon double bond, it may form part of an aromatic ring, and at least one of Z a , Z b , and Z c represents a methine group connected to the group R b .
Claim 17
Dependent Claim
53 words
The element of claim 1 wherein said element comprises wherein R′ and R″ are substituents selected such that the coupler is a “NB coupler”, as herein defined; and Z is a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color developing agent.
Claim 18
Dependent Claim
49 words
The element of claim 1 wherein said element comprises wherein R 2 represents a substituent, X is hydrogen or a coupling-off group; Y represents an aryl group or a heterocyclic group; and Q 3 represents an organic residue required to form a nitrogen-containing heterocyclic group together with the >N—.
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| 3.5 Years (Year 4) | 2004-10-01 | 2005-04-02 | 2005-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-10-01 | 2009-04-02 | 2009-10-02 | $3760.00 | Window Closed / Lapsed |
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