EP1113326A2 - Bildaufzeichnungselement, das eine in der Photographie anwendbare blockierte Verbindung enthält - Google Patents
Bildaufzeichnungselement, das eine in der Photographie anwendbare blockierte Verbindung enthält Download PDFInfo
- Publication number
- EP1113326A2 EP1113326A2 EP00311241A EP00311241A EP1113326A2 EP 1113326 A2 EP1113326 A2 EP 1113326A2 EP 00311241 A EP00311241 A EP 00311241A EP 00311241 A EP00311241 A EP 00311241A EP 1113326 A2 EP1113326 A2 EP 1113326A2
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- EP
- European Patent Office
- Prior art keywords
- image
- silver
- group
- substituted
- groups
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003384 imaging method Methods 0.000 title claims abstract description 52
- 150000001875 compounds Chemical class 0.000 title claims abstract description 44
- 229910052709 silver Inorganic materials 0.000 claims description 105
- 239000004332 silver Substances 0.000 claims description 105
- -1 silver halide Chemical class 0.000 claims description 92
- 238000000034 method Methods 0.000 claims description 66
- 239000003795 chemical substances by application Substances 0.000 claims description 34
- 125000000217 alkyl group Chemical group 0.000 claims description 29
- 229910052799 carbon Inorganic materials 0.000 claims description 26
- 238000011161 development Methods 0.000 claims description 26
- 125000003118 aryl group Chemical group 0.000 claims description 25
- 229910052717 sulfur Inorganic materials 0.000 claims description 25
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 230000003595 spectral effect Effects 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims description 17
- 239000003381 stabilizer Substances 0.000 claims description 17
- 125000000623 heterocyclic group Chemical group 0.000 claims description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims description 16
- 239000001257 hydrogen Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 14
- 239000011593 sulfur Chemical group 0.000 claims description 14
- 239000002243 precursor Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
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- 239000003112 inhibitor Substances 0.000 claims description 10
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- 150000001721 carbon Chemical class 0.000 claims description 6
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- 125000004070 6 membered heterocyclic group Chemical group 0.000 claims description 5
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- 125000003545 alkoxy group Chemical group 0.000 claims description 5
- 125000005647 linker group Chemical group 0.000 claims description 5
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 4
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 4
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- CYFLXLSBHQBMFT-UHFFFAOYSA-N sulfamoxole Chemical group O1C(C)=C(C)N=C1NS(=O)(=O)C1=CC=C(N)C=C1 CYFLXLSBHQBMFT-UHFFFAOYSA-N 0.000 claims description 4
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
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- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 45
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- 230000000052 comparative effect Effects 0.000 description 17
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- WKEDVNSFRWHDNR-UHFFFAOYSA-N salicylanilide Chemical compound OC1=CC=CC=C1C(=O)NC1=CC=CC=C1 WKEDVNSFRWHDNR-UHFFFAOYSA-N 0.000 description 13
- 229950000975 salicylanilide Drugs 0.000 description 13
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- IBWXIFXUDGADCV-UHFFFAOYSA-N 2h-benzotriazole;silver Chemical compound [Ag].C1=CC=C2NN=NC2=C1 IBWXIFXUDGADCV-UHFFFAOYSA-N 0.000 description 10
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- ZBHBIODEONVIMN-UHFFFAOYSA-N 1-phenyl-2h-tetrazole-5-thione;silver Chemical compound [Ag].S=C1N=NNN1C1=CC=CC=C1 ZBHBIODEONVIMN-UHFFFAOYSA-N 0.000 description 9
- 125000004432 carbon atom Chemical group C* 0.000 description 9
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- 235000011941 Tilia x europaea Nutrition 0.000 description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 8
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- 125000001424 substituent group Chemical group 0.000 description 8
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 7
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
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- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 6
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 5
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Images
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- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/392—Additives
- G03C7/39208—Organic compounds
- G03C7/39236—Organic compounds with a function having at least two elements among nitrogen, sulfur or oxygen
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
- G03C7/4136—Developers p-Phenylenediamine or derivatives thereof
Definitions
- This invention relates to an imaging element containing a blocked photographically useful compound, such as a developer.
- chromogenic dye-forming films require reducing agents such as p -aminophenols or p -phenylenediamine developers to form dye images.
- reducing agents such as p -aminophenols or p -phenylenediamine developers to form dye images.
- These reducing agents are typically present in developer solutions which are then brought into reactive association with exposed photographic film elements at the time of processing. Segregation of the developer and the film element has been necessary because the incorporation of developers directly into sensitized photographic elements frequently leads to desensitization of the silver halide emulsion and undesirable fog.
- Considerable effort has therefore been directed at trying to produce effective blocked developers, which can be introduced in silver halide emulsion elements without deleterious desensitization or fog effects and which un-block under conditions of development so that developer is free to participate in image-forming (dye or silver metal forming) reactions.
- the ⁇ -ketoacyl blocked developers are released from the film layers in which they are incorporated by an alkaline developing solution containing a dinucleophile, for example hydroxylamine.
- colloidal gelatin dispersions of the blocked developers are prepared using means well known in the art, wherein the developer precursor is dissolved in a high vapor pressure organic solvent (for example, ethyl acetate), along with, in some cases, a low vapor pressure organic solvent (such as dibutylphthalate), and then emulsified with an aqueous surfactant and gelatin solution. After emulsification, usually done with a colloid mill, the high vapor pressure organic solvent is removed by evaporation or by washing, as is well known in the art.
- a high vapor pressure organic solvent for example, ethyl acetate
- a low vapor pressure organic solvent such as dibutylphthalate
- imaging elements particularly photographic and photothermographic imaging elements, that contain a developer in a form that is stable until development yet can rapidly and easily develop the imaging element once processing has been initiated by heating the element and/or by applying a processing solution, such as a solution of a base or acid or pure water, to the element without the necessity of the presence of a dinucleophile.
- a processing solution such as a solution of a base or acid or pure water
- photographically useful compounds include, couplers, dyes and dye precursors, electron transfer agents, etc., as discussed more fully below.
- This invention relates to a blocked compound that decomposes by a 1,2 elimination mechanism to release a photographically useful group on thermal activation.
- the photographically useful group is a developer.
- thermal activation preferable occurs at temperatures between about 100 and 160 °C. In another embodiment, thermal activation preferable occurs at temperatures between about 20 and 100 °C in the presence of added acid, base or water.
- the invention further relates to a light sensitive photographic element comprising a support and a compound having a blocked compound that decomposes by a 1,2 elimination mechanism to release a photographically useful group on thermal activation.
- the invention additionally relates to a method of image formation having the steps of: thermally developing an imagewise exposed photographic element having a blocked compound that decomposes by a 1,2 elimination mechanism to release a photographically useful group on thermal activation to form a developed image, scanning said developed image to form a first electronic image representation from said developed image, digitizing said first electronic record to form a digital image, modifying said digital image to form a second electronic image representation, and storing, transmitting, printing or displaying said second electronic image representation.
- the invention further relates to a one-time use camera having a light sensitive photographic element comprising a support and a compound having a blocked compound that decomposes by a 1,2 elimination mechanism to release a photographically useful group on thermal activation
- the invention further relates to a method of image formation having the steps of imagewise exposing a light sensitive photographic element comprising a support and a blocked compound that decomposes by a 1,2 elimination mechanism to release a photographically useful group on thermal activation in a one-time-use camera having a heater and thermally processing the exposed element in the camera.
- the photographic element comprising an imaging layer having in association therewith a compound of Structure I: wherein:
- Each alkyl group preferably contains 1 to 6 carbon atoms
- each cycloalkyl group preferably contains 4 to 6 carbon atoms
- each aryl group preferably is phenyl or naphthyl.
- LINK 1 and LINK 2 are of structure II: wherein
- Fig. 1 shows in block diagram form an apparatus for processing and viewing image formation obtained by scanning the elements of the invention.
- Fig. 2 shows a block diagram showing electronic signal processing of image bearing signals derived from scanning a developed color element according to the invention.
- the PUG can be, for example, a photographic dye or photographic reagent.
- a photographic reagent herein is a moiety that upon release further reacts with components in the photographic element.
- Such photographically useful groups include, for example, couplers (such as, image dye-forming couplers, development inhibitor releasing couplers, competing couplers, polymeric couplers and other forms of couplers), development inhibitors, bleach accelerators, bleach inhibitors, inhibitor releasing developers, dyes and dye precursors, developing agents (such as competing developing agents, dye-forming developing agents, developing agent precursors, and silver halide developing agents), silver ion fixing agents, electron transfer agents, silver halide solvents, silver halide complexing agents, reductones, image toners, pre-processing and post-processing image stabilizers, hardeners, tanning agents, fogging agents, ultraviolet radiation absorbers, nucleators, chemical and spectral sensitizers or desensitizers, surfactants, and precursors thereof and other addenda known to be
- the PUG can be present in the blocked compound as a preformed species or as a precursor.
- a preformed development inhibitor may be bonded to the blocking group or the development inhibitor may be attached to a timing group that is released at a particular time and location in the photographic material.
- the PUG may be, for example, a preformed dye or a compound that forms a dye after release from the blocking group.
- the PUG is a developing agent.
- the developing agent can be a color developing agent, a black-and-white developing agent or a cross-oxidized developing agent. They include aminophenols, phenylenediamines, hydroquinones, pyrazolidinones, and hydrazines. Illustrative developing agents are described in U.S. Patent No. 2,193,015, 2,108,243, 2,592,364, 3,656,950, 3,658,525, 2,751,297, 2,289,367, 2,772,282, 2,743,279, 2,753,256, and 2,304,953.
- LINK 1 or LINK 2 are of structure II: wherein
- Illustrative linking groups include, for example,
- TIME is a timing group.
- groups are well-known in the art such as (1) groups utilizing an aromatic nucleophilic substitution reaction as disclosed in U.S. Patent No. 5,262,291; (2) groups utilizing the cleavage reaction of a hemiacetal (U.S. Pat. No. 4,146,396, Japanese Applications 60-249148; 60-249149); (3) groups utilizing an electron transfer reaction along a conjugated system (U.S. Pat. No. 4,409,323; 4, 421,845; Japanese Applications 57-188035; 58-98728; 58-209736; 58-209738); and (4) groups using an intramolecular nucleophilic substitution reaction (U.S. Pat. No. 4,248,962).
- timing groups are illustrated by formulae T-1 through T-4. wherein:
- timing groups include, for example: and
- R 13 and R 14 when they represent substituent groups, and R 15 include where, R 16 represents an aliphatic or aromatic hydrocarbon residue, or a heterocyclic group; and R 17 represents a hydrogen atom, an aliphatic or aromatic hydrocarbon residue, or a heterocyclic group, R 13 , R 14 and R 15 each may represent a divalent group, and any two of them combine with each other to complete a ring structure.
- R 16 represents an aliphatic or aromatic hydrocarbon residue, or a heterocyclic group
- R 17 represents a hydrogen atom, an aliphatic or aromatic hydrocarbon residue, or a heterocyclic group
- R 13 , R 14 and R 15 each may represent a divalent group, and any two of them combine with each other to complete a ring structure.
- T-2 Specific examples of the group represented by formula (T-2) are illustrated below.
- Nu1 represents a nucleophilic group, and an oxygen or sulfur atom can be given as an example of nucleophilic species
- E1 represents an electrophilic group being a group which is subjected to nucleophilic attack by Nu1
- LINK4 represents a linking group which enables Nu1 and E1 to have a steric arrangement such that an intramolecular nucleophilic substition reaction can occur.
- Specific examples of the group represented by formula (T-3) are illustrated below. wherein V, R 13 , R 14 and d all have the same meaning as in formula (T-2), respectively.
- R 13 and R 14 may be joined together to form a benzene ring or a heterocyclic ring, or V may be joined with R 13 or R 14 to form a benzene or heterocyclic ring.
- Z 1 and Z 2 each independently represents a carbon atom or a nitrogen atom, and x and y each represents 0 or 1.
- timing group (T-4) Specific examples of the timing group (T-4) are illustrated below.
- Particularly preferred photographically useful compounds are blocked developers of Structure III: wherein:
- Heterocyclic groups useful in compounds of Structure I and III are preferably a 5- or 6-membered heterocyclic rings containing one or more hetero atoms, such as N, O, S or Se.
- Such groups include for example substituted or unsubstituted benzimidazolyl, benzothiazolyl, benzoxazolyl, benzothiophenyl,benzofuryl, furyl, imidazolyl, indazolyl, indolyl, isoquinolyl, isothiazolyl, isoxazolyl,, oxazolyl, picolinyl, purinyl, , pyranyl, pyrazinyl, pyrazolyl, pyridyl, pyrimidinyl, pyrrolyl, quinaldinyl, quinazolinyl, quinolyl, quinoxalinyl, tetrazolyl, thiadiazolyl, thiatriazolyl, thiazolyl,
- substituent groups when reference in this application is made to a particular moiety, or group, this means that the moiety may itself be unsubstituted or substituted with one or more substituents (up to the maximum possible number).
- alkyl or alkyl group refers to a substituted or unsubstituted alkyl
- aryl group refers to a substituted or unsubstituted benzene (with up to five substituents) or higher aromatic systems.
- substituent groups usable on molecules herein include any groups, whether substituted or unsubstituted, which do not destroy properties necessary for the photographic utility.
- substituents on any of the mentioned groups can include known substituents, such as: halogen, for example, chloro, fluoro, bromo, iodo; alkoxy, particularly those "lower alkyl" (that is, with 1 to 6 carbon atoms), for example, methoxy, ethoxy; substituted or unsubstituted alkyl, particularly lower alkyl (for example, methyl, trifluoromethyl); thioalkyl (for example, methylthio or ethylthio), particularly either of those with 1 to 6 carbon atoms; substituted and unsubstituted aryl, particularly those having from 6 to 20 carbon atoms (for example, phenyl); and substituted or unsubstituted heteroaryl, particularly those having a 5 or 6-membered ring containing 1 to 3 heteroatoms selected from N, O, or S (for example, pyridyl, thienyl, furyl, pyrrolyl); acid or acid or
- Alkyl substituents may specifically include "lower alkyl” (that is, having 1-6 carbon atoms), for example, methyl, ethyl, and the like. Further, with regard to any alkyl group or alkylene group, it will be understood that these can be branched, unbranched or cyclic.
- the blocked developer is preferably incorporated in one or more of the imaging layers of the imaging element.
- the amount of blocked developer used is preferably 0.01 to 5g/m 2 , more preferably 0.1 to 2g/m 2 and most preferably 0.3 to 2g/m 2 in each layer to which it is added. These may be color forming or non-color forming layers of the element.
- the blocked developer can be contained in a separate element that is contacted to the photographic element during processing.
- the blocked developer is activated during processing of the imaging element by the presence of acid or base in the processing solution, by heating the imaging element during processing of the imaging element, and/or by placing the imaging element in contact with a separate element, such as a laminate sheet, during processing.
- the laminate sheet optionally contains additional processing chemicals such as those disclosed in Sections XIX and XX of Research Disclosure, September 1996, Number 389, Item 38957 (hereafter referred to as (“ Research Disclosure I" ). All sections referred to herein are sections of Research Disclosure I, unless otherwise indicated.
- Such chemicals include, for example, sulfites, hydroxyl amine, hydroxamic acids and the like, antifoggants, such as alkali metal halides, nitrogen containing heterocyclic compounds, and the like, sequestering agents such as an organic acids, and other additives such as buffering agents, sulfonated polystyrene, stain reducing agents, biocides, desilvering agents, stabilizers and the like.
- the blocked compounds may be used in any form of photographic system.
- a typical color negative film construction useful in the practice of the invention is illustrated by the following element, SCN-1: Element SCN-1 SOC Surface Overcoat BU Blue Recording Layer Unit IL1 First Interlayer GU Green Recording Layer Unit IL2 Second Interlayer RU Red Recording Layer Unit AHU Antihalation Layer Unit S Support SOC Surface Overcoat
- the support S can be either reflective or transparent, which is usually preferred. When reflective, the support is white and can take the form of any conventional support currently employed in color print elements. When the support is transparent, it can be colorless or tinted and can take the form of any conventional support currently employed in color negative elements ⁇ e.g., a colorless or tinted transparent film support. Details of support construction are well understood in the art. Examples of useful supports are poly(vinylacetal) film, polystyrene film, poly(ethyleneterephthalate) film, poly(ethylene naphthalate) film, polycarbonate film, and related films and resinous materials, as well as paper, cloth, glass, metal, and other supports that withstand the anticipated processing conditions.
- the element can contain additional layers, such as filter layers, interlayers, overcoat layers, subbing layers, antihalation layers and the like. Transparent and reflective support constructions, including subbing layers to enhance adhesion, are disclosed in Section XV of Research Disclosure I.
- Photographic elements of the present invention may also usefully include a magnetic recording material as described in Research Disclosure, Item 34390, November 1992, or a transparent magnetic recording layer such as a layer containing magnetic particles on the underside of a transparent support as in US Patent No. 4,279,945, and US Pat. No. 4,302,523.
- Each of blue, green and red recording layer units BU, GU and RU are formed of one or more hydrophilic colloid layers and contain at least one radiation-sensitive silver halide emulsion and coupler, including at least one dye image-forming coupler. It is preferred that the green, and red recording units are subdivided into at least two recording layer sub-units to provide increased recording latitude and reduced image granularity. In the simplest contemplated construction each of the layer units or layer sub-units consists of a single hydrophilic colloid layer containing emulsion and coupler.
- the coupler containing hydrophilic colloid layer is positioned to receive oxidized color developing agent from the emulsion during development.
- the coupler containing layer is the next adjacent hydrophilic colloid layer to the emulsion containing layer.
- all of the sensitized layers are preferably positioned on a common face of the support.
- the element When in spool form, the element will be spooled such that when unspooled in a camera, exposing light strikes all of the sensitized layers before striking the face of the support carrying these layers.
- the total thickness of the layer units above the support should be controlled. Generally, the total thickness of the sensitized layers, interlayers and protective layers on the exposure face of the support are less than 35 ⁇ m.
- any convenient selection from among conventional radiation-sensitive silver halide emulsions can be incorporated within the layer units and used to provide the spectral absorptances of the invention. Most commonly high bromide emulsions containing a minor amount of iodide are employed. To realize higher rates of processing, high chloride emulsions can be employed. Radiation-sensitive silver chloride, silver bromide, silver iodobromide, silver iodochloride, silver chlorobromide, silver bromochloride, silver iodochlorobromide and silver iodobromochloride grains are all contemplated. The grains can be either regular or irregular (e.g., tabular).
- Tabular grain emulsions those in which tabular grains account for at least 50 (preferably at least 70 and optimally at least 90) percent of total grain projected area are particularly advantageous for increasing speed in relation to granularity.
- a grain requires two major parallel faces with a ratio of its equivalent circular diameter (ECD) to its thickness of at least 2.
- ECD equivalent circular diameter
- Specifically preferred tabular grain emulsions are those having a tabular grain average aspect ratio of at least 5 and, optimally, greater than 8.
- Preferred mean tabular grain thicknesses are less than 0.3 ⁇ m (most preferably less than 0.2 ⁇ m).
- Ultrathin tabular grain emulsions those with mean tabular grain thicknesses of less than 0.07 ⁇ m, are specifically contemplated.
- the grains preferably form surface latent images so that they produce negative images when processed in a surface developer in color negative film forms of the invention.
- the dye may be added to an emulsion of the silver halide grains and a hydrophilic colloid at any time prior to (e.g., during or after chemical sensitization) or simultaneous with the coating of the emulsion on a photographic element.
- the dyes may, for example, be added as a solution in water or an alcohol or as a dispersion of solid particles.
- the emulsion layers also typically include one or more antifoggants or stabilizers, which can take any conventional form, as illustrated by section VII. Antifoggants and stabilizers.
- the silver halide grains to be used in the invention may be prepared according to methods known in the art, such as those described in Research Disclosure I, cited above, and James, The Theory of the Photographic Process. These include methods such as ammoniacal emulsion making, neutral or acidic emulsion making, and others known in the art. These methods generally involve mixing a water soluble silver salt with a water soluble halide salt in the presence of a protective colloid, and controlling the temperature, pAg, pH values, etc, at suitable values during formation of the silver halide by precipitation.
- one or more dopants can be introduced to modify grain properties.
- any of the various conventional dopants disclosed in Research Disclosure I, Section I. Emulsion grains and their preparation, subsection G. Grain modifying conditions and adjustments, paragraphs (3), (4) and (5), can be present in the emulsions of the invention.
- a dopant capable of increasing imaging speed by forming a shallow electron trap (hereinafter also referred to as a SET) as discussed in Research Disclosure Item 36736 published November 1994.
- the SET dopants are effective at any location within the grains. Generally better results are obtained when the SET dopant is incorporated in the exterior 50 percent of the grain, based on silver. An optimum grain region for SET incorporation is that formed by silver ranging from 50 to 85 percent of total silver forming the grains.
- the SET can be introduced all at once or run into the reaction vessel over a period of time while grain precipitation is continuing. Generally SET forming dopants are contemplated to be incorporated in concentrations of at least 1 X 10 -7 mole per silver mole up to their solubility limit, typically up to about 5 X 10 -4 mole per silver mole.
- SET dopants are known to be effective to reduce reciprocity failure.
- the use of iridium hexacoordination complexes or Ir +4 complexes as SET dopants is advantageous.
- Non-SET dopants Iridium dopants that are ineffective to provide shallow electron traps
- Iridium dopants that are ineffective to provide shallow electron traps can also be incorporated into the grains of the silver halide grain emulsions to reduce reciprocity failure.
- the Ir can be present at any location within the grain structure.
- a preferred location within the grain structure for Ir dopants to produce reciprocity improvement is in the region of the grains formed after the first 60 percent and before the final 1 percent (most preferably before the final 3 percent) of total silver forming the grains has been precipitated.
- the dopant can be introduced all at once or run into the reaction vessel over a period of time while grain precipitation is continuing.
- reciprocity improving non-SET Ir dopants are contemplated to be incorporated at their lowest effective concentrations.
- the contrast of the photographic element can be further increased by doping the grains with a hexacoordination complex containing a nitrosyl or thionitrosyl ligand (NZ dopants) as disclosed in McDugle et al U.S. Patent 4,933,272.
- the contrast increasing dopants can be incorporated in the grain structure at any convenient location. However, if the NZ dopant is present at the surface of the grain, it can reduce the sensitivity of the grains. It is therefore preferred that the NZ dopants be located in the grain so that they are separated from the grain surface by at least 1 percent (most preferably at least 3 percent) of the total silver precipitated in forming the silver iodochloride grains.
- Preferred contrast enhancing concentrations of the NZ dopants range from 1 X 10 -11 to 4 X 10 -8 mole per silver mole, with specifically preferred concentrations being in the range from 10 -10 to 10 -8 mole per silver mole.
- concentration ranges for the various SET, non-SET Ir and NZ dopants have been set out above, it is recognized that specific optimum concentration ranges within these general ranges can be identified for specific applications by routine testing. It is specifically contemplated to employ the SET, non-SET Ir and NZ dopants singly or in combination. For example, grains containing a combination of an SET dopant and a non-SET Ir dopant are specifically contemplated. Similarly SET and NZ dopants can be employed in combination. Also NZ and Ir dopants that are not SET dopants can be employed in combination. Finally, the combination of a non-SET Ir dopant with a SET dopant and an NZ dopant. For this latter three-way combination of dopants it is generally most convenient in terms of precipitation to incorporate the NZ dopant first, followed by the SET dopant, with the non-SET Ir dopant incorporated last.
- Photographic emulsions generally include a vehicle for coating the emulsion as a layer of a photographic element.
- Useful vehicles include both naturally occurring substances such as proteins, protein derivatives, cellulose derivatives (e.g., cellulose esters), gelatin (e.g., alkali-treated gelatin such as cattle bone or hide gelatin, or acid treated gelatin such as pigskin gelatin), deionized gelatin, gelatin derivatives (e.g., acetylated gelatin, phthalated gelatin, and the like), and others as described in Research Disclosure, I.
- Also useful as vehicles or vehicle extenders are hydrophilic water-permeable colloids.
- polystyrene resin examples include synthetic polymeric peptizers, carriers, and/or binders such as poly(vinyl alcohol), poly(vinyl lactams), acrylamide polymers, polyvinyl acetals, polymers of alkyl and sulfoalkyl acrylates and methacrylates, hydrolyzed polyvinyl acetates, polyamides, polyvinyl pyridine, methacrylamide copolymers.
- the vehicle can be present in the emulsion in any amount useful in photographic emulsions.
- the emulsion can also include any of the addenda known to be useful in photographic emulsions.
- the total quantity be less than 10 g/m 2 of silver.
- Silver quantities of less than 7 g/m 2 are preferred, and silver quantities of less than 5 g/m 2 are even more preferred.
- the lower quantities of silver improve the optics of the elements, thus enabling the production of sharper pictures using the elements.
- These lower quantities of silver are additionally important in that they enable rapid development and desilvering of the elements.
- a silver coating coverage of at least 1.5 g of coated silver per m 2 of support surface area in the element is necessary to realize an exposure latitude of at least 2.7 log E while maintaining an adequately low graininess position for pictures intended to be enlarged.
- BU contains at least one yellow dye image-forming coupler
- GU contains at least one magenta dye image-forming coupler
- RU contains at least one cyan dye image-forming coupler.
- Any convenient combination of conventional dye image-forming couplers can be employed.
- Conventional dye image-forming couplers are illustrated by Research Disclosure I, cited above, X. Dye image formers and modifiers, B. Image-dye-forming couplers.
- the photographic elements may further contain other image-modifying compounds such as "Development Inhibitor-Releasing" compounds (DIR's). Useful additional DIR's for elements of the present invention, are known in the art and examples are described in U.S. Patent Nos.
- DIR compounds are also disclosed in "Developer-Inhibitor-Releasing (DIR) Couplers for Color Photography," C.R. Barr, J.R. Thirtle and P.W. Vittum in Photographic Science and Engineering, Vol. 13, p. 174 (1969).
- One or more of the layer units of the invention is preferably subdivided into at least two, and more preferably three or more sub-unit layers. It is preferred that all light sensitive silver halide emulsions in the color recording unit have spectral sensitivity in the same region of the visible spectrum. In this embodiment, while all silver halide emulsions incorporated in the unit have spectral absorptance according to invention, it is expected that there are minor differences in spectral absorptance properties between them.
- the sensitizations of the slower silver halide emulsions are specifically tailored to account for the light shielding effects of the faster silver halide emulsions of the layer unit that reside above them, in order to provide an imagewise uniform spectral response by the photographic recording material as exposure varies with low to high light levels.
- higher proportions of peak light absorbing spectral sensitizing dyes may be desirable in the slower emulsions of the subdivided layer unit to account for on-peak shielding and broadening of the underlying layer spectral sensitivity.
- the interlayers IL1 and IL2 are hydrophilic colloid layers having as their primary function color contamination reduction ⁇ i.e., prevention of oxidized developing agent from migrating to an adjacent recording layer unit before reacting with dye-forming coupler.
- the interlayers are in part effective simply by increasing the diffusion path length that oxidized developing agent must travel.
- Antistain agents oxidized developing agent scavengers
- a yellow filter such as Carey Lea silver or a yellow processing solution decolorizable dye
- Suitable yellow filter dyes can be selected from among those illustrated by Research Disclosure I, Section VIII. Absorbing and scattering materials, B. Absorbing materials.
- magenta colored filter materials are absent from IL2 and RU.
- the antihalation layer unit AHU typically contains a processing solution removable or decolorizable light absorbing material, such as one or a combination of pigments and dyes. Suitable materials can be selected from among those disclosed in Research Disclosure I, Section VIII. Absorbing materials.
- a common alternative location for AHU is between the support S and the recording layer unit coated nearest the support.
- the surface overcoats SOC are hydrophilic colloid layers that are provided for physical protection of the color negative elements during handling and processing. Each SOC also provides a convenient location for incorporation of addenda that are most effective at or near the surface of the color negative element. In some instances the surface overcoat is divided into a surface layer and an interlayer, the latter functioning as spacer between the addenda in the surface layer and the adjacent recording layer unit. In another common variant form, addenda are distributed between the surface layer and the interlayer, with the latter containing addenda that are compatible with the adjacent recording layer unit. Most typically the SOC contains addenda, such as coating aids, plasticizers and lubricants, antistats and matting agents, such as illustrated by Research Disclosure I, Section IX. Coating physical property modifying addenda.
- the SOC overlying the emulsion layers additionally preferably contains an ultraviolet absorber, such as illustrated by Research Disclosure I, Section VI. UV dyes/optical brighteners/luminescent dyes, paragraph (1).
- layer unit sequence of element SCN-1 instead of the layer unit sequence of element SCN-1, alternative layer units sequences can be employed and are particularly attractive for some emulsion choices.
- high chloride emulsions and/or thin ( ⁇ 0.2 ⁇ m mean grain thickness) tabular grain emulsions all possible interchanges of the positions of BU, GU and RU can be undertaken without risk of blue light contamination of the minus blue records, since these emulsions exhibit negligible native sensitivity in the visible spectrum. For the same reason, it is unnecessary to incorporate blue light absorbers in the interlayers.
- the emulsion layers within a dye image-forming layer unit differ in speed, it is conventional practice to limit the incorporation of dye image-forming coupler in the layer of highest speed to less than a stoichiometric amount, based on silver.
- the function of the highest speed emulsion layer is to create the portion of the characteristic curve just above the minimum density ⁇ i.e., in an exposure region that is below the threshold sensitivity of the remaining emulsion layer or layers in the layer unit. In this way, adding the increased granularity of the highest sensitivity speed emulsion layer to the dye image record produced is minimized without sacrificing imaging speed.
- the blue, green and red recording layer units are described as containing yellow, magenta and cyan image dye-forming couplers, respectively, as is conventional practice in color negative elements used for printing.
- the invention can be suitably applied to conventional color negative construction as illustrated.
- Color reversal film construction would take a similar form, with the exception that colored masking couplers would be completely absent; in typical forms, development inhibitor releasing couplers would also be absent.
- the color negative elements are intended exclusively for scanning to produce three separate electronic color records. Thus the actual hue of the image dye produced is of no importance. What is essential is merely that the dye image produced in each of the layer units be differentiable from that produced by each of the remaining layer units.
- each of the layer units contain one or more dye image-forming couplers chosen to produce image dye having an absorption half-peak bandwidth lying in a different spectral region.
- the blue, green or red recording layer unit forms a yellow, magenta or cyan dye having an absorption half peak bandwidth in the blue, green or red region of the spectrum, as is conventional in a color negative element intended for use in printing, or an absorption half-peak bandwidth in any other convenient region of the spectrum, ranging from the near ultraviolet (300-400 nm) through the visible and through the near infrared (700-1200 nm), so long as the absorption half-peak bandwidths of the image dye in the layer units extend over substantially non-coextensive wavelength ranges.
- substantially non-coextensive wavelength ranges means that each image dye exhibits an absorption half-peak band width that extends over at least a 25 (preferably 50) nm spectral region that is not occupied by an absorption half-peak band width of another image dye. Ideally the image dyes exhibit absorption half-peak band widths that are mutually exclusive.
- a layer unit contains two or more emulsion layers differing in speed
- This technique is particularly well suited to elements in which the layer units are divided into sub-units that differ in speed. This allows multiple electronic records to be created for each layer unit, corresponding to the differing dye images formed by the emulsion layers of the same spectral sensitivity.
- the digital record formed by scanning the dye image formed by an emulsion layer of the highest speed is used to recreate the portion of the dye image to be viewed lying just above minimum density.
- second and, optionally, third electronic records can be formed by scanning spectrally differentiated dye images formed by the remaining emulsion layer or layers.
- These digital records contain less noise (lower granularity) and can be used in recreating the image to be viewed over exposure ranges above the threshold exposure level of the slower emulsion layers. This technique for lowering granularity is disclosed in greater detail by Sutton U.S. Patent 5,314,794.
- Each layer unit of the color negative elements of the invention produces a dye image characteristic curve gamma of less than 1.5, which facilitates obtaining an exposure latitude of at least 2.7 log E.
- a minimum acceptable exposure latitude of a multicolor photographic element is that which allows accurately recording the most extreme whites (e.g., a bride's wedding gown) and the most extreme blacks (e.g., a bride groom's tuxedo) that are likely to arise in photographic use.
- An exposure latitude of 2.6 log E can just accommodate the typical bride and groom wedding scene.
- An exposure latitude of at least 3.0 log E is preferred, since this allows for a comfortable margin of error in exposure level selection by a photographer.
- any of the conventional incorporated dye image generating compounds employed in multicolor imaging can be alternatively incorporated in the blue, green and red recording layer units.
- Dye images can be produced by the selective destruction, formation or physical removal of dyes as a function of exposure.
- silver dye bleach processes are well known and commercially utilized for forming dye images by the selective destruction of incorporated image dyes. The silver dye bleach process is illustrated by Research Disclosure I, Section X. Dye image formers and modifiers, A. Silver dye bleach.
- pre-formed image dyes can be incorporated in blue, green and red recording layer units, the dyes being chosen to be initially immobile, but capable of releasing the dye chromophore in a mobile moiety as a function of entering into a redox reaction with oxidized developing agent.
- RDR's redox dye releasers
- By washing out the released mobile dyes a retained dye image is created that can be scanned. It is also possible to transfer the released mobile dyes to a receiver, where they are immobilized in a mordant layer. The image-bearing receiver can then be scanned. Initially the receiver is an integral part of the color negative element.
- the receiver When scanning is conducted with the receiver remaining an integral part of the element, the receiver typically contains a transparent support, the dye image bearing mordant layer just beneath the support, and a white reflective layer just beneath the mordant layer.
- the receiver support can be reflective, as is commonly the choice when the dye image is intended to be viewed, or transparent, which allows transmission scanning of the dye image. RDR's as well as dye image transfer systems in which they are incorporated are described in Research Disclosure, Vol. 151, November 1976, Item 15162.
- the dye image can be provided by compounds that are initially mobile, but are rendered immobile during imagewise development.
- Image transfer systems utilizing imaging dyes of this type have long been used in previously disclosed dye image transfer systems. These and other image transfer systems compatible with the practice of the invention are disclosed in Research Disclosure, Vol. 176, December 1978, Item 17643, XXIII. Image transfer systems.
- the imaging element of this invention may be used with non-conventional sensitization schemes.
- the light-sensitive material may have one white-sensitive layer to record scene luminance, and two color-sensitive layers to record scene chrominance.
- the resulting image can be scanned and digitally reprocessed to reconstruct the full colors of the original scene as described in US 5,962,205.
- the imaging element may also comprise a pan-sensitized emulsion with accompanying color-separation exposure.
- the developers of the invention would give rise to a colored or neutral image which, in conjunction with the separation exposure, would enable full recovery of the original scene color values.
- the image may be formed by either developed silver density, a combination of one or more conventional couplers, or "black” couplers such as resorcinol couplers.
- the separation exposure may be made either sequentially through appropriate filters, or simultaneously through a system of spatially discreet filter elements (commonly called a "color filter array").
- the imaging element of the invention may also be a black and white image-forming material comprised, for example, of a pan-sensitized silver halide emulsion and a developer of the invention.
- the image may be formed by developed silver density following processing, or by a coupler that generates a dye which can be used to carry the neutral image tone scale.
- Densitometry is the measurement of transmitted light by a sample using selected colored filters to separate the imagewise response of the RGB image dye forming units into relatively independent channels. It is common to use Status M filters to gauge the response of color negative film elements intended for optical printing, and Status A filters for color reversal films intended for direct transmission viewing.
- Image noise can be reduced, where the images are obtained by scanning exposed and processed color negative film elements to obtain a manipulatable electronic record of the image pattern, followed by reconversion of the adjusted electronic record to a viewable form.
- Image sharpness and colorfulness can be increased by designing layer gamma ratios to be within a narrow range while avoiding or minimizing other performance deficiencies, where the color record is placed in an electronic form prior to recreating a color image to be viewed.
- the red, green, and blue light sensitive color forming units each exhibit gamma ratios of less than 1.15. In an even more preferred embodiment, the red and blue light sensitive color forming units each exhibit gamma ratios of less than 1.10. In a most preferred embodiment, the red, green, and blue light sensitive color forming units each exhibit gamma ratios of less than 1.10. In all cases, it is preferred that the individual color unit(s) exhibit gamma ratios of less than 1.15, more preferred that they exhibit gamma ratios of less than 1.10 and even more preferred that they exhibit gamma ratios of less than 1.05. The gamma ratios of the layer units need not be equal.
- Elements having excellent light sensitivity are best employed in the practice of this invention.
- the elements should have a sensitivity of at least about ISO 50, preferably have a sensitivity of at least about ISO 100, and more preferably have a sensitivity of at least about ISO 200. Elements having a sensitivity of up to ISO 3200 or even higher are specifically contemplated.
- the speed, or sensitivity, of a color negative photographic element is inversely related to the exposure required to enable the attainment of a specified density above fog after processing.
- Photographic speed for a color negative element with a gamma of about 0.65 in each color record has been specifically defined by the American National Standards Institute (ANSI) as ANSI Standard Number PH 2.27-1981 (ISO (ASA Speed)) and relates specifically the average of exposure levels required to produce a density of 0.15 above the minimum density in each of the green light sensitive and least sensitive color recording unit of a color film.
- This definition conforms to the International Standards Organization (ISO) film speed rating.
- the ASA or ISO speed is to be calculated by linearly amplifying or deamplifying the gamma vs. log E (exposure) curve to a value of 0.65 before determining the speed in the otherwise defined manner.
- the present invention also contemplates the use of photographic elements of the present invention in what are often referred to as single use cameras (or "film with lens” units). These cameras are sold with film preloaded in them and the entire camera is returned to a processor with the exposed film remaining inside the camera.
- the one-time-use cameras employed in this invention can be any of those known in the art. These cameras can provide specific features as known in the art such as shutter means, film winding means, film advance means, waterproof housings, single or multiple lenses, lens selection means, variable aperture, focus or focal length lenses, means for monitoring lighting conditions, means for adjusting shutter times or lens characteristics based on lighting conditions or user provided instructions, and means for camera recording use conditions directly on the film.
- These features include, but are not limited to: providing simplified mechanisms for manually or automatically advancing film and resetting shutters as described at Skarman, U.S. Patent 4,226,517; providing apparatus for automatic exposure control as described at Matterson et al, U S. Patent 4,345,835; moisture-proofing as described at Fujimura et al, U.S. Patent 4,766,451; providing internal and external film casings as described at Ohmura et al, U.S. Patent 4,751,536; providing means for recording use conditions on the film as described at Taniguchi et al, U.S. Patent 4,780,735; providing lens fitted cameras as described at Arai, U.S.
- Patent 4,804,987 providing film supports with superior anti-curl properties as described at Sasaki et al, U.S. Patent 4,827,298; providing a viewfinder as described at Ohmura et al, U.S. Patent 4,812,863; providing a lens of defined focal length and lens speed as described at Ushiro et al, U.S. Patent 4,812,866; providing multiple film containers as described at Nakayama et al, U.S. Patent 4,831,398 and at Ohmura et al, U.S. Patent 4,833,495; providing films with improved anti-friction characteristics as described at Shiba, U.S.
- Patent 4,866,469 providing winding mechanisms, rotating spools, or resilient sleeves as described at Mochida, U.S. Patent 4,884,087; providing a film patrone or cartridge removable in an axial direction as described by Takei et al at U.S. Patents 4,890,130 and 5,063,400; providing an electronic flash means as described at Ohmura et al, U.S. Patent 4,896,178; providing an externally operable member for effecting exposure as described at Mochida et al, U.S. Patent 4,954,857; providing film support with modified sprocket holes and means for advancing said film as described at Murakami, U.S. Patent 5,049,908; providing internal mirrors as described at Hara, U.S. Patent 5,084,719; and providing silver halide emulsions suitable for use on tightly wound spools as described at Yagi et al, European Patent Application 0,466,417 A.
- While the film may be mounted in the one-time-use camera in any manner known in the art, it is especially preferred to mount the film in the one-time-use camera such that it is taken up on exposure by a thrust cartridge.
- Thrust cartridges are disclosed by Kataoka et al U.S. Patent 5,226,613; by Zander U.S. Patent 5,200,777; by Dowling et al U.S. Patent 5,031,852; and by Robertson et al U.S. Patent 4,834,306.
- Narrow bodied one-time-use cameras suitable for employing thrust cartridges in this way are described by Tobioka et al U.S. Patent 5,692,221.
- the size limited cameras most useful as one-time-use cameras will be generally rectangular in shape and can meet the requirements of easy handling and transportability in, for example, a pocket, when the camera as described herein has a limited volume.
- the camera should have a total volume of less than about 450 cubic centimeters (cc's), preferably less than 380 cc, more preferably less than 300 cc, and most preferably less than 220 cc.
- the depth-to-height-to-length proportions of such a camera will generally be in an about 1:2:4 ratio, with a range in each of about 25% so as to provide comfortable handling and pocketability.
- the minimum usable depth is set by the focal length of the incorporated lens and by the dimensions of the incorporated film spools and cartridge.
- the camera will preferably have the majority of corners and edges finished with a radius-of-curvature of between about 0.2 and 3 centimeters.
- thrust cartridges allows a particular advantage in this invention by providing easy scanner access to particular scenes photographed on a roll while protecting the film from dust, scratches, and abrasion, all of which tend to degrade the quality of an image.
- the taking lens mounted on the single-use cameras of the invention are preferably single aspherical plastic lenses.
- the lenses will have a focal length between about 10 and 100 mm, and a lens aperture between f/2 and f/32.
- the focal length is preferably between about 15 and 60 mm and most preferably between about 20 and 40 mm.
- a focal length matching to within 25% the diagonal of the rectangular film exposure area is preferred.
- Lens apertures of between f/2.8 and f/22 are contemplated with a lens aperture of about f/4 to f/16 being preferred.
- the lens MTF can be as low as 0.6 or less at a spatial frequency of 20 lines per millimeter (1pm) at the film plane, although values as high as 0.7 or most preferably 0.8 or more are contemplated. Higher lens MTF values generally allow sharper pictures to be produced. Multiple lens arrangements comprising two, three, or more component lens elements consistent with the functions described above are specifically contemplated.
- Cameras may contain a built-in processing capability, for example a heating element. Designs for such cameras including their use in an image capture and display system are disclosed in US Patent Application Serial No. 09/388,573 filed September 1, 1999. The use of a one-time use camera as disclosed in said application is particularly preferred in the practice of this invention.
- Photographic elements of the present invention are preferably imagewise exposed using any of the known techniques, including those described in Research Disclosure I, Section XVI. This typically involves exposure to light in the visible region of the spectrum, and typically such exposure is of a live image through a lens, although exposure can also be exposure to a stored image (such as a computer stored image) by means of light emitting devices (such as light emitting diodes, CRT and the like).
- a stored image such as a computer stored image
- the photothermographic elements are also exposed by means of various forms of energy, including ultraviolet and infrared regions of the electromagnetic spectrum as well as electron beam and beta radiation, gamma ray, x-ray, alpha particle, neutron radiation and other forms of corpuscular wave-like radiant energy in either non-coherent (random phase) or coherent (in phase) forms produced by lasers. Exposures are monochromatic, orthochromatic, or panchromatic depending upon the spectral sensitization of the photographic silver halide.
- the elements as discussed above may serve as origination material for some or all of the following processes: image scanning to produce an electronic rendition of the capture image, and subsequent digital processing of that rendition to manipulate, store, transmit, output, or display electronically that image.
- the blocked compounds of this invention may be used in photographic elements that contain any or all of the features discussed above, but are intended for different forms of processing. These types of systems will be described in detail below.
- Type I Thermal process systems (thermographic and photothermographic), where processing is initiated solely by the application of heat to the imaging element.
- Type II Low volume systems, where film processing is initiated by contact to a processing solution, but where the processing solution volume is comparable to the total volume of the imaging layer to be processed.
- This type of system may include the addition of non solution processing aids, such as the application of heat or of a laminate layer that is applied at the time of processing.
- Type III Conventional photographic systems, where film elements are processed by contact with conventional photographic processing solutions, and the volume of such solutions is very large in comparison to the volume of the imaging layer.
- the blocked developer is incorporated in a photothermographic element.
- Photothermographic elements of the type described in Research Disclosure 17029 are included by reference.
- the photothermographic elements may be of type A or type B as disclosed in Research Disclosure I.
- Type A elements contain in reactive association a photosensitive silver halide, a reducing agent or developer, an activator, and a coating vehicle or binder. In these systems development occurs by reduction of silver ions in the photosensitive silver halide to metallic silver.
- Type B systems can contain all of the elements of a type A system in addition to a salt or complex of an organic compound with silver ion. In these systems, this organic complex is reduced during development to yield silver metal.
- the organic silver salt will be referred to as the silver donor. References describing such imaging elements include, for example, U.S. Patents 3,457,075; 4,459,350; 4,264,725 and 4,741,992.
- the photothermographic element comprises a photosensitive component that consists essentially of photographic silver halide.
- a photosensitive component that consists essentially of photographic silver halide.
- the latent image silver from the silver halide acts as a catalyst for the described image-forming combination upon processing.
- a preferred concentration of photographic silver halide is within the range of 0.01 to 100 moles of photographic silver halide per mole of silver donor in the photothermographic material.
- the Type B photothermographic element comprises an oxidation-reduction image forming combination that contains an organic silver salt oxidizing agent.
- the organic silver salt is a silver salt which is comparatively stable to light, but aids in the formation of a silver image when heated to 80 °C or higher in the presence of an exposed photocatalyst (i.e., the photosensitive silver halide) and a reducing agent.
- Suitable organic silver salts include silver salts of organic compounds having a carboxyl group. Preferred examples thereof include a silver salt of an aliphatic carboxylic acid and a silver salt of an aromatic carboxylic acid. Preferred examples of the silver salts of aliphatic carboxylic acids include silver behenate, silver stearate, silver oleate, silver laureate, silver caprate, silver myristate, silver palmitate, silver maleate, silver fumarate, silver tartarate, silver furoate, silver linoleate, silver butyrate and silver camphorate, mixtures thereof, etc. Silver salts which are substitutable with a halogen atom or a hydroxyl group can also be effectively used.
- Preferred examples of the silver salts of aromatic carboxylic acid and other carboxyl group-containing compounds include silver benzoate, a silver-substituted benzoate such as silver 3,5-dihydroxybenzoate, silver o-methylbenzoate, silver m-methylbenzoate, silver p-methylbenzoate, silver 2,4-dichlorobenzoate, silver acetamidobenzoate, silver p-phenylbenzoate, etc., silver gallate, silver tannate, silver phthalate, silver terephthalate, silver salicylate, silver phenylacetate, silver pyromellilate, a silver salt of 3-carboxymethyl-4-methyl-4-thiazoline-2-thione or the like as described in U.S. Pat. No. 3,785,830, and silver salt of an aliphatic carboxylic acid containing a thioether group as described in U.S. Pat. No. 3,330,663.
- Silver salts of mercapto or thione substituted compounds having a heterocyclic nucleus containing 5 or 6 ring atoms, at least one of which is nitrogen, with other ring atoms including carbon and up to two hetero-atoms selected from among oxygen, sulfur and nitrogen are specifically contemplated.
- Typical preferred heterocyclic nuclei include triazole, oxazole, thiazole, thiazoline,, imidazoline, imidazole, diazole, pyridine and triazine.
- heterocyclic compounds include a silver salt of 3-mercapto-4-phenyl-1,2,4 triazole, a silver salt of 2-mercaptobenzimidazole, a silver salt of 2-mercapto-5-aminothiadiazole, a silver salt of 2-(2-ethyl-glycolamido)benzothiazole, a silver salt of 5-carboxylic-1-methyl-2-phenyl-4-thiopyridine, a silver salt of mercaptotriazine, a silver salt of 2-mercaptobenzoxazole, a silver salt as described in U.S. Pat. No.
- a silver salt of 1,2,4-mercaptothiazole derivative such as a silver salt of 3-amino-5-benzylthio-1, 2,4-thiazole
- a silver salt of a thione compound such as a silver salt of 3-(2-carboxyethyl)-4-methyl-4-thiazoline-2-thione as disclosed in U.S. Pat. No. 3,201,678.
- Examples of other useful mercapto or thione substituted compounds that do not contain a heterocyclic nucleus are illustrated by the following: a silver salt of thioglycolic acid such as a silver salt of a S-alkylthioglycolic acid (wherein the alkyl group has from 12 to 22 carbon atoms) as described in Japanese patent application 28221/73, a silver salt of a dithiocarboxylic acid such as a silver salt of dithioacetic acid, and a silver salt of thioamide.
- a silver salt of thioglycolic acid such as a silver salt of a S-alkylthioglycolic acid (wherein the alkyl group has from 12 to 22 carbon atoms) as described in Japanese patent application 28221/73
- a silver salt of a dithiocarboxylic acid such as a silver salt of dithioacetic acid
- thioamide silver salt of thioamide
- a silver salt of a compound containing an imino group can be used.
- Preferred examples of these compounds include a silver salt of benzotriazole and a derivative thereof as described in Japanese patent publications 30270/69 and 18146/70, for example a silver salt of benzotriazole or methylbenzotriazole, etc., a silver salt of a halogen substituted benzotriazole, such as a silver salt of 5-chlorobenzotriazole, etc., a silver salt of 1,2,4-triazole, a silver salt of 3-amino-5-mercaptobenzyl-1,2,4-triazole, of 1H-tetrazole as described in U.S. Pat. No. 4,220,709, a silver salt of imidazole and an imidazole derivative, and the like.
- silver half soap of which an equimolar blend of a silver behenate with behenic acid, prepared by precipitation from aqueous solution of the sodium salt of commercial behenic acid and analyzing about 14.5 percent silver
- Transparent sheet materials made on transparent film backing require a transparent coating and for this purpose the silver behenate full soap, containing not more than about 4 or 5 percent of free behenic acid and analyzing about 25.2 percent silver may be used.
- a method for making silver soap dispersions is well known in the art and is disclosed in Research Disclosure October 1983 (23419) and U.S. Pat. No. 3,985,565.
- Silver salts complexes may also be prepared by mixture of aqueous solutions of a silver ionic species, such as silver nitrate, and a solution of the organic ligand to be complexed with silver.
- the mixture process may take any convenient form, including those employed in the process of silver halide precipitation.
- a stabilizer may be used to avoid flocculation of the silver complex particles.
- the stabilizer may be any of those materials known to be useful in the photographic art, such as, but not limited to, gelatin, polyvinyl alcohol or polymeric or monomeric surfactants.
- the photosensitive silver halide grains and the organic silver salt are coated so that they are in catalytic proximity during development. They can be coated in contiguous layers, but are preferably mixed prior to coating. Conventional mixing techniques are illustrated by Research Disclosure, Item 17029, cited above, as well as U.S. Pat. No. 3,700,458 and published Japanese patent applications Nos. 32928/75, 13224/74, 17216/75 and 42729/76.
- a reducing agent in addition to the blocked developer may be included.
- the reducing agent for the organic silver salt may be any material, preferably organic material, that can reduce silver ion to metallic silver.
- Conventional photographic developers such as 3-pyrazolidinones, hydroquinones, p-aminophenols, p-phenylenediamines and catechol are useful, but hindered phenol reducing agents are preferred.
- the reducing agent is preferably present in a concentration ranging from 5 to 25 percent of the photothermographic layer.
- amidoximes such as phenylamidoxime, 2-thienylamidoxime and p-phenoxy-phenylamidoxime, azines (e.g., 4-hydroxy-3,5-dimethoxybenzaldehydeazine); a combination of aliphatic carboxylic acid aryl hydrazides and ascorbic acid, such as 2,2'-bis(hydroxymethyl)propionylbetaphenyl hydrazide in combination with ascorbic acid; an combination of polyhydroxybenzene and hydroxylamine, a reductone and/or a hydrazine, e.g., a combination of hydroquinone and bis(ethoxyethyl)hydroxylamine, piperidinohexose reductone or formyl-4-methylphenylhydrazine, hydroxamic acids such as phenylhydroxamic acid, p-hydroxyphenyl-hydroxamic acid,
- An optimum concentration of organic reducing agent in the photothermographic element varies depending upon such factors as the particular photothermographic element, desired image, processing conditions, the particular organic silver salt and the particular oxidizing agent.
- the photothermographic element can comprise a toning agent, also known as an activator-toner or toner-accelerator.
- a toning agent also known as an activator-toner or toner-accelerator.
- Combinations of toning agents are also useful in the photothermographic element. Examples of useful toning agents and toning agent combinations are described in, for example, Research Disclosure, June 1978, Item No. 17029 and U.S. Patent No. 4,123,282.
- useful toning agents include, for example, phthalimide, N-hydroxyphthalimide, N-potassium-phthalimide, succinimide, N-hydroxy-1,8-naphthalimide, phthalazine, 1-(2H)-phthalazinone, 2-acetylphthalazinone, salicylanilide, benzamide, and dimethylurea.
- Post-processing image stabilizers and latent image keeping stabilizers are useful in the photothermographic element. Any of the stabilizers known in the photothermographic art are useful for the described photothermographic element. Illustrative examples of useful stabilizers include photolytically active stabilizers and stabilizer precursors as described in, for example, U.S. Patent 4,459,350. Other examples of useful stabilizers include azole thioethers and blocked azolinethione stabilizer precursors and carbamoyl stabilizer precursors, such as described in U.S. Patent 3,877,940.
- the photothermographic elements preferably contain various colloids and polymers alone or in combination as vehicles and binders and in various layers.
- Useful materials are hydrophilic or hydrophobic. They are transparent or translucent and include both naturally occurring substances, such as gelatin, gelatin derivatives, cellulose derivatives, polysaccharides, such as dextran, gum arabic and the like; and synthetic polymeric substances, such as water-soluble polyvinyl compounds like poly(vinylpyrrolidone) and acrylamide polymers.
- Other synthetic polymeric compounds that are useful include dispersed vinyl compounds such as in latex form and particularly those that increase dimensional stability of photographic elements.
- Effective polymers include water insoluble polymers of acrylates, such as alkylacrylates and methacrylates, acrylic acid, sulfoacrylates, and those that have cross-linking sites.
- Preferred high molecular weight materials and resins include poly(vinyl butyral), cellulose acetate butyrate, poly(methylmethacrylate), poly(vinylpyrrolidone), ethyl cellulose, polystyrene, poly(vinylchloride), chlorinated rubbers, polyisobutylene, butadiene-styrene copolymers, copolymers of vinyl chloride and vinyl acetate, copolymers of vinylidene chloride and vinyl acetate, poly(vinyl alcohol) and polycarbonates.
- organic soluble resins may be coated by direct mixture into the coating formulations.
- any useful organic soluble materials may be incorporated as a latex or other fine particle dispersion.
- Photothermographic elements as described can contain addenda that are known to aid in formation of a useful image.
- the photothermographic element can contain development modifiers that function as speed increasing compounds, sensitizing dyes, hardeners, antistatic agents, plasticizers and lubricants, coating aids, brighteners, absorbing and filter dyes, such as described in Research Disclosure, December 1978, Item No. 17643 and Research Disclosure, June 1978, Item No. 17029.
- the layers of the photothermographic element are coated on a support by coating procedures known in the photographic art, including dip coating, air knife coating, curtain coating or extrusion coating using hoppers. If desired, two or more layers are coated simultaneously.
- a photothermographic element as described preferably comprises a thermal stabilizer to help stabilize the photothermographic element prior to exposure and processing.
- a thermal stabilizer provides improved stability of the photothermographic element during storage.
- Preferred thermal stabilizers are 2-bromo-2-arylsulfonylacetamides, such as 2-bromo-2-p-tolysulfonylacetamide; 2-(tribromomethyl sulfonyl)benzothiazole; and 6-substituted-2,4-bis(tribromomethyl)-s-triazines, such as 6-methyl or 6-phenyl-2,4-bis(tribromomethyl)-s-triazine.
- Imagewise exposure is preferably for a time and intensity sufficient to produce a developable latent image in the photothermographic element.
- the resulting latent image can be developed in a variety of ways.
- the simplest is by overall heating the element to thermal processing temperature.
- This overall heating merely involves heating the photothermographic element to a temperature within the range of about 90°C to about 180°C until a developed image is formed, such as within about 0.5 to about 60 seconds.
- a preferred thermal processing temperature is within the range of about 100°C to about 160°C.
- Heating means known in the photothermographic arts are useful for providing the desired processing temperature for the exposed photothermographic element.
- the heating means is, for example, a simple hot plate, iron, roller, heated drum, microwave heating means, heated air, vapor or the like.
- the design of the processor for the photothermographic element be linked to the design of the cassette or cartridge used for storage and use of the element. Further, data stored on the film or cartridge may be used to modify processing conditions or scanning of the element. Methods for accomplishing these steps in the imaging system are disclosed in commonly assigned, co-pending U.S. Patent Application Serial No. 09/206586 and U.S. Patent Nos. 6,062,746 and 6,048,110.
- the use of an apparatus whereby the processor can be used to write information onto the element, information which can be used to adjust processing, scanning, and image display is also envisaged. This system is disclosed in EP Application No. 1,008,901, Published June 14, 2000 and U.S. Application Serial No. 09/333,092 filed June 15,1999.
- Thermal processing is preferably carried out under ambient conditions of pressure and humidity. Conditions outside of normal atmospheric pressure and humidity are useful.
- the components of the photothermographic element can be in any location in the element that provides the desired image. If desired, one or more of the components can be in one or more layers of the element. For example, in some cases, it is desirable to include certain percentages of the reducing agent, toner, stabilizer and/or other addenda in the overcoat layer over the photothermographic image recording layer of the element. This, in some cases, reduces migration of certain addenda in the layers of the element.
- the blocked developer is incorporated in a thermographic element.
- thermographic elements an image is formed by imagewise heating the element.
- Such elements are described in, for example, Research Disclosure, June 1978, Item No. 17029 and U.S. Patents 3,080,254, 3,457,075 and 3,933,508.
- the thermal energy source and means for imaging can be any imagewise thermal exposure source and means that are known in the thermographic imaging art.
- the thermographic imaging means can be, for example, an infrared heating means, laser, microwave heating means or the like.
- the blocked developer is incorporated in a photographic element intended for low volume processing.
- Low volume processing is defined as processing where the volume of applied developer solution is between about 0.1 to about 10 times, preferably about 0.5 to about 10 times, the volume of solution required to swell the photographic element. This processing may take place by a combination of solution application, external layer lamination, and heating.
- the low volume processing system may contain any of the elements described above for Type I: Photothermographic systems.
- any components described in the preceding sections that are not necessary for the formation or stability of latent image in the origination film element can be removed from the film element altogether and contacted at any time after exposure for the purpose of carrying out photographic processing, using the methods described below.
- the Type II photographic element may receive some or all of the following treatments: (I) Application of a solution directly to the film by any means, including spray, inkjet, coating, gravure process and the like. (II) Soaking of the film in a reservoir containing a processing solution. This process may also take the form of dipping or passing an element through a small cartridge. (III) Lamination of an auxiliary processing element to the imaging element.
- the laminate may have the purpose of providing processing chemistry, removing spent chemistry, or transferring image information from the latent image recording film element.
- the transferred image may result from a dye, dye precursor, or silver containing compound being transferred in a image-wise manner to the auxiliary processing element.
- Heating of the element by any convenient means, including a simple hot plate, iron, roller, heated drum, microwave heating means, heated air, vapor, or the like. Heating may be accomplished before, during, after, or throughout any of the preceding treatments I - III. Heating may cause processing temperatures ranging from room temperature to 100 ° C
- the blocked developer is incorporated in a conventional photographic element.
- Conventional photographic elements in accordance with the invention can be processed in any of a number of well-known photographic processes utilizing any of a number of well-known conventional photographic processing solutions, described, for example, in Research Disclosure I, or in T.H. James, editor, The Theory of the Photographic Process , 4th Edition, Macmillan, New York, 1977.
- the development process may take place for any length of time and any process temperature that is suitable to render an acceptable image.
- the presence of blocked developers of the invention may be used to provide development in one or more color records of the element, supplementary to the development provided by the developer in the processing solution to give improved signal in a shorter time of development or with lowered laydowns of imaging materials, or to give balanced development in all color records.
- the element is treated with a color developer (that is one which will form the colored image dyes with the color couplers), and then with a oxidizer and a solvent to remove silver and silver halide.
- a color developer that is one which will form the colored image dyes with the color couplers
- a oxidizer and a solvent to remove silver and silver halide.
- the element is first treated with a black and white developer (that is, a developer which does not form colored dyes with the coupler compounds) followed by a treatment to fog silver halide (usually chemical fogging or light fogging), followed by treatment with a color developer.
- Preferred color developing agents are p-phenylenediamines. Especially preferred are:
- Dye images can be formed or amplified by processes which employ in combination with a dye-image-generating reducing agent an inert transition metal-ion complex oxidizing agent, as illustrated by Bissonette U.S. Patents 3,748,138, 3,826,652, 3,862,842 and 3,989,526 and Travis U.S. Patent 3,765,891, and/or a peroxide oxidizing agent as illustrated by Matejec U.S. Patent 3,674,490, Research Disclosure, Vol. 116, December, 1973, Item 11660, and Bissonette Research Disclosure, Vol. 148, August, 1976, Items 14836, 14846 and 14847.
- the photographic elements can be particularly adapted to form dye images by such processes as illustrated by Dunn et al U.S.
- Patent 3,822,129, Bissonette U.S. Patents 3,834,907 and 3,902,905 Bissonette et al U.S. Patent 3,847,619, Mowrey U.S. Patent 3,904,413, Hirai et al U.S. Patent 4,880,725, Iwano U.S. Patent 4,954,425, Marsden et al U.S. Patent 4,983,504, Evans et al U.S. Patent 5,246,822, Twist U.S. Patent No.
- Development may be followed by bleach-fixing, to remove silver or silver halide, washing and drying.
- this electronic signal is further manipulated to form a useful electronic record of the image.
- the electrical signal can be passed through an analog-to-digital converter and sent to a digital computer together with location information required for pixel (point) location within the image.
- this electronic signal is encoded with colorimetric or tonal information to form an electronic record that is suitable to allow reconstruction of the image into viewable forms such as computer monitor displayed images, television images, printed images, and so forth.
- imaging elements of this invention will be scanned prior to the removal of silver halide from the element.
- the remaining silver halide yields a turbid coating, and it is found that improved scanned image quality for such a system can be obtained by the use of scanners that employ diffuse illumination optics.
- Any technique known in the art for producing diffuse illumination can be used.
- Preferred systems include reflective systems, that employ a diffusing cavity whose interior walls are specifically designed to produce a high degree of diffuse reflection, and transmissive systems, where diffusion of a beam of specular light is accomplished by the use of an optical element placed in the beam that serves to scatter light.
- Such elements can be either glass or plastic that either incorporate a component that produces the desired scattering, or have been given a surface treatment to promote the desired scattering.
- a conventional technique for minimizing the impact of aberrant pixel signals is to adjust each pixel density reading to a weighted average value by factoring in readings from adjacent pixels, closer adjacent pixels being weighted more heavily.
- the elements of the invention can have density calibration patches derived from one or more patch areas on a portion of unexposed photographic recording material that was subjected to reference exposures, as described by Wheeler et al US Patent 5,649,260, Koeng at al US Patent 5,563,717, and by Cosgrove et al US Patent 5,644,647.
- Patent 5,065,255 Osamu et al U.S. Patent 5,051,842; Lee et al U.S. Patent 5,012,333; Bowers et al U.S. Patent 5,107,346; Telle U.S. Patent 5,105,266; MacDonald et al U.S. Patent 5,105,469; and Kwon et al U.S. Patent 5,081,692.
- Techniques for color balance adjustments during scanning are disclosed by Moore et al U.S. Patent 5,049,984 and Davis U.S. Patent 5,541,645.
- the digital color records once acquired are in most instances adjusted to produce a pleasingly color balanced image for viewing and to preserve the color fidelity of the image bearing signals through various transformations or renderings for outputting, either on a video monitor or when printed as a conventional color print.
- Preferred techniques for transforming image bearing signals after scanning are disclosed by Giorgianni et al U.S. Patent 5,267,030.
- the signal transformation techniques of Giorgianni et al '030 described in connection with Fig. 8 represent a specifically preferred technique for obtaining a color balanced image for viewing.
- Fig. 1 shows, in block diagram form, the manner in which the image information provided by the color negative elements of the invention is contemplated to be used.
- An image scanner 2 is used to scan by transmission an imagewise exposed and photographically processed color negative element 1 according to the invention.
- the scanning beam is most conveniently a beam of white light that is split after passage through the layer units and passed through filters to create separate image records-red recording layer unit image record (R), green recording layer unit image record (G), and blue recording layer unit image record (B).
- RGB recording layer unit image record
- G green recording layer unit image record
- B blue recording layer unit image record
- blue, green, and red filters can be sequentially caused to intersect the beam at each pixel location.
- separate blue, green, and red light beams as produced by a collection of light emitting diodes, can be directed at each pixel location.
- an array detector such as an array charge-coupled device (CCD)
- a linear array detector such as a linear array CCD
- Signal intensity and location information is fed to a workstation 4, and the information is transformed into an electronic form R', G', and B', which can be stored in any convenient storage device 5.
- a common approach is to transfer the color negative film information into a video signal using a telecine transfer device.
- Two types of telecine transfer devices are most common: (1) a flying spot scanner using photomultiplier tube detectors or (2) CCD's as sensors. These devices transform the scanning beam that has passed through the color negative film at each pixel location into a voltage. The signal processing then inverts the electrical signal in order to render a positive image. The signal is then amplified and modulated and fed into a cathode ray tube monitor to display the image or recorded onto magnetic tape for storage.
- a video monitor 6 which receives the digital image information modified for its requirements, indicated by R", G", and B", allows viewing of the image information received by the workstation. Instead of relying on a cathode ray tube of a video monitor, a liquid crystal display panel or any other convenient electronic image viewing device can be substituted.
- the video monitor typically relies upon a picture control apparatus 3, which can include a keyboard and cursor, enabling the workstation operator to provide image manipulation commands for modifying the video image displayed and any image to be recreated from the digital image information.
- the modified image information R"', G"', and B"' can be sent to an output device 7 to produce a recreated image for viewing.
- the output device can be any convenient conventional element writer, such as a thermal dye transfer, inkjet, electrostatic, electrophotographic, electrostatic, thermal dye sublimation or other type of printer. CRT or LED printing to sensitized photographic paper is also contemplated.
- the output device can be used to control the exposure of a conventional silver halide color paper.
- the output device creates an output medium 8 that bears the recreated image for viewing.
- the image in the output medium that is ultimately viewed and judged by the end user for noise (granularity), sharpness, contrast, and color balance.
- the image on a video display may also ultimately be viewed and judged by the end user for noise, sharpness, tone scale, color balance, and color reproduction, as in the case of images transmitted between parties on the World Wide Web of the Internet computer network.
- Giorgianni et al provides for a method and means to convert the R, G, and B image-bearing signals from a transmission scanner to an image manipulation and/or storage metric which corresponds to the trichromatic signals of a reference image-producing device such as a film or paper writer, thermal printer, video display, etc.
- the metric values correspond to those which would be required to appropriately reproduce the color image on that device.
- the reference image producing device was chosen to be a specific video display
- the intermediary image data metric was chosen to be the R', G', and B' intensity modulating signals (code values) for that reference video display
- code values code values
- the R, G, and B image-bearing signals from a scanner would be transformed to the R', G', and B' code values corresponding to those which would be required to appropriately reproduce the input image on the reference video display.
- a data-set is generated from which the mathematical transformations to convert R, G, and B image-bearing signals to the aforementioned code values are derived.
- Exposure patterns chosen to adequately sample and cover the useful exposure range of the film being calibrated, are created by exposing a pattern generator and are fed to an exposing apparatus.
- the exposing apparatus produces trichromatic exposures on film to create test images consisting of approximately 150 color patches.
- Test images may be created using a variety of methods appropriate for the application. These methods include: using exposing apparatus such as a sensitometer, using the output device of a color imaging apparatus, recording images of test objects of known reflectances illuminated by known light sources, or calculating trichromatic exposure values using methods known in the photographic art. If input films of different speeds are used, the overall red, green, and blue exposures must be properly adjusted for each film in order to compensate for the relative speed differences among the films.
- Each film thus receives equivalent exposures, appropriate for its red, green, and blue speeds.
- the exposed film is processed chemically.
- Film color patches are read by transmission scanner which produces R, G, and B image-bearing signals corresponding each color patch.
- Signal-value patterns of code value pattern generator produces RGB intensity-modulating signals which are fed to the reference video display.
- the R', G', and B' code values for each test color are adjusted such that a color matching apparatus, which may correspond to an instrument or a human observer, indicates that the video display test colors match the positive film test colors or the colors of a printed negative.
- a transform apparatus creates a transform relating the R, G, and B image-bearing signal values for the film's test colors to the R', G', and B' code values of the corresponding test colors.
- the mathematical operations required to transform R, G, and B image-bearing signals to the intermediary data may consist of a sequence of matrix operations and look-up tables (LUT's).
- input image-bearing signals R, G, and B are transformed to intermediary data values corresponding to the R', G', and B' output image-bearing signals required to appropriately reproduce the color image on the reference output device as follows:
- look-up tables are typically provided for each input color.
- three 1-dimensional look-up tables can be employed, one for each of a red, green, and blue color record.
- a multi-dimensional look-up table can be employed as described by D'Errico at U.S. 4,941,039.
- the output image-bearing signals for the reference output device of step 4 above may be in the form of device-dependent code values or the output image-bearing signals may require further adjustment to become device specific code values. Such adjustment may be accomplished by further matrix transformation or 1-dimensional look-up table transformation, or a combination of such transformations to properly prepare the output image-bearing signals for any of the steps of transmitting, storing, printing, or displaying them using the specified device.
- the R, G, and B image-bearing signals from a transmission scanner are converted to an image manipulation and/or storage metric which corresponds to a measurement or description of a single reference image-recording device and/or medium and in which the metric values for all input media correspond to the trichromatic values which would have been formed by the reference device or medium had it captured the original scene under the same conditions under which the input media captured that scene.
- the reference image recording medium was chosen to be a specific color negative film, and the intermediary image data metric was chosen to be the measured RGB densities of that reference film, then for an input color negative film according to the invention, the R, G, and B image-bearing signals from a scanner would be transformed to the R', G', and B' density values corresponding to those of an image which would have been formed by the reference color negative film had it been exposed under the same conditions under which the color negative recording material according to the invention was exposed.
- Exposure patterns chosen to adequately sample and cover the useful exposure range of the film being calibrated, are created by exposing a pattern generator and are fed to an exposing apparatus.
- the exposing apparatus produces trichromatic exposures on film to create test images consisting of approximately 150 color patches.
- Test images may be created using a variety of methods appropriate for the application. These methods include: using exposing apparatus such as a sensitometer, using the output device of a color imaging apparatus, recording images of test objects of known reflectances illuminated by known light sources, or calculating trichromatic exposure values using methods known in the photographic art. If input films of different speeds are used, the overall red, green, and blue exposures must be properly adjusted for each film in order to compensate for the relative speed differences among the films.
- Each film thus receives equivalent exposures, appropriate for its red, green, and blue speeds.
- the exposed film is processed chemically.
- Film color patches are read by a transmission scanner which produces R, G, and B image-bearing signals corresponding each color patch and by a transmission densitometer which produces R', G', and B' density values corresponding to each patch.
- a transform apparatus creates a transform relating the R, G, and B image-bearing signal values for the film's test colors to the measured R', G', and B' densities of the corresponding test colors of the reference color negative film.
- the reference image recording medium was chosen to be a specific color negative film
- the intermediary image data metric was chosen to be the predetermined R', G', and B' intermediary densities of step 2 of that reference film
- the R, G, and B image-bearing signals from a scanner would be transformed to the R', G', and B' intermediary density values corresponding to those of an image which would have been formed by the reference color negative film had it been exposed under the same conditions under which the color negative recording material according to the invention was exposed.
- each input film calibrated according to the present method would yield, insofar as possible, identical intermediary data values corresponding to the R', G', and B' code values required to appropriately reproduce the color image which would have been formed by the reference color negative film on the reference output device.
- Uncalibrated films may also be used with transformations derived for similar types of films, and the results would be similar to those described.
- the mathematical operations required to transform R, G, and B image-bearing signals to the intermediary data metric of this preferred embodiment may consist of a sequence of matrix operations and 1-dimensional LUTs. Three tables are typically provided for the three input colors. It is appreciated that such transformations can also be accomplished in other embodiments by employing a single mathematical operation or a combination of mathematical operations in the computational steps produced by the host computer including, but not limited to, matrix algebra, algebraic expressions dependent on one or more of the image-bearing signals, and n-dimensional LUTs.
- matrix 1 of step 2 is a 3x3 matrix. In a more preferred embodiment, matrix 1 of step 2 is a 3x10 matrix.
- the 1-dimensional LUT 3 in step 4 transforms the intermediary image-bearing signals according to a color photographic paper characteristic curve, thereby reproducing normal color print image tone scale.
- LUT 3 of step 4 transforms the intermediary image-bearing signals according to a modified viewing tone scale that is more pleasing, such as possessing lower image contrast.
- the image processing is not limited to the specific manipulations described above. While the image is in this form, additional image manipulation may be used including, but not limited to, standard scene balance algorithms (to determine corrections for density and color balance based on the densities of one or more areas within the negative), tone scale manipulations to amplify film underexposure gamma, non-adaptive or adaptive sharpening via convolution or unsharp masking, red-eye reduction, and non-adaptive or adaptive grain-suppression. Moreover, the image may be artistically manipulated, zoomed, cropped, and combined with additional images or other manipulations known in the art.
- the image may be electronically transmitted to a remote location or locally written to a variety of output devices including, but not limited to, silver halide film or paper writers, thermal printers, electrophotographic printers, ink-jet printers, display monitors, CD disks, optical and magnetic electronic signal storage devices, and other types of storage and display devices as known in the art.
- output devices including, but not limited to, silver halide film or paper writers, thermal printers, electrophotographic printers, ink-jet printers, display monitors, CD disks, optical and magnetic electronic signal storage devices, and other types of storage and display devices as known in the art.
- the luminance and chrominance sensitization and image extraction article and method described by Arakawa et al in U. S. Patent 5,962,205 can be employed.
- a stirred reaction vessel was charged with 431 g of lime processed gelatin and 6569 g of distilled water.
- a solution containing 214 g of benzotriazole, 2150 g of distilled water, and 790 g of 2.5 molar sodium hydroxide was prepared (Solution B).
- the mixture in the reaction vessel was adjusted to a pAg of 7.25 and a pH of 8.00 by additions of Solution B, nitric acid, and sodium hydroxide as needed.
- a 4 1 solution of 0.54 molar silver nitrate was added to the kettle at 250 cc/minute, and the pAg was maintained at 7.25 by a simultaneous addition of solution B. This process was continued until the silver nitrate solution was exhausted, at which point the mixture was concentrated by ultrafiltration.
- the resulting silver salt dispersion contained fine particles of silver benzotriazole.
- a stirred reaction vessel was charged with 431 g of lime processed gelatin and 6569 g of distilled water.
- a solution containing 320 g of 1-phenyl-5-mercaptotetrazole , 2044 g of distilled water, and 790 g of 2.5 molar sodium hydroxide was prepared (Solution B).
- the mixture in the reaction vessel was adjusted to a pAg of 7.25 and a pH of 8.00 by additions of Solution B, nitric acid, and sodium hydroxide as needed.
- a 4 1 solution of 0.54 molar silver nitrate was added to the kettle at 250 cc/minute, and the pAg was maintained at 7.25 by a simultaneous addition of solution B. This process was continued until the silver nitrate solution was exhausted, at which point the mixture was concentrated by ultrafiltration.
- the resulting silver salt dispersion contained fine particles of the silver salt of 1-phenyl-5-mercaptotetrazole.
- the emulsions employed in these examples are all silver iodobromide tabular grains precipitated by conventional means as known in the art. Table 1 below lists the various emulsions, along with their iodide content (the remainder assumed to be bromide), their dimensions, and the sensitizing dyes used to impart spectral sensitivity. All of these emulsions have been given chemical sensitizations as known in the art to produce optimum sensitivity.
- Emulsion Spectral sensitivity Iodide content (%) Diameter ( ⁇ m) Thicknes s ( ⁇ m) Dyes EY-1 yellow 1.3 0.54 0.084 SY-1 EY-2 yellow 4.1 1.25 0.137 SY-1 EY-3 yellow 2 1.23 0.125 SY-1 EY-4 yellow 2 0.45 0.061 SY-1 EY-5 yellow 2 0.653 0.093 SY-1 EM-1 magenta 1.3 0.55 0.084 SM-1 + SM-2 EM-2 magenta 4.1 1.22 0.111 SM-1 + SM-3 EM-3 magenta 2 1.23 0.125 SM-1 + SM-3 EM-4 magenta 2 0.45 0.061 SM-1 + SM-3 EM-5 magenta 2 0.653 0.093 SM-1 + SM-3 EC-1 cyan 1.3 0.55 0.084 SC-1 EC-2 cyan 4.1 1.2 0.11 SC-1 EC-3 cyan 2 1.23 0.125 SC-1 + SC-2 EC-4 cyan 2 0.45 0.061 SC-1 + SC-2 EC
- Coupler Dispersion CDM-1
- An oil based coupler dispersion was prepared by conventional means containing coupler M-1 and tricresyl phosphate at a weight ratio of 1:0.5.
- Coupler Dispersion CDM-2
- a coupler dispersion was prepared by conventional means containing coupler M-2 without any additional permanent solvents.
- Coupler Dispersion CDC-1
- An oil based coupler dispersion was prepared by conventional means containing coupler C-1 and dibutyl phthalate at a weight ratio of 1:2.
- Coupler Dispersion CDC-2
- An oil based coupler dispersion was prepared by conventional means containing coupler C-2 and dibutyl phthalate at a weight ratio of 1:1.
- An oil based coupler dispersion was prepared by conventional means containing coupler Y-1 and dibutyl phthalate at a weight ratio of 1:0.5.
- Example 1 All coatings for Example 1 contain a single light sensitive layer and were prepared according to the format listed in Table 1-1, with variations consisting of changing the incorporated developer. All coatings were prepared on a 7 mil thick poly(ethylene terephthalate) support.
- Developers were ball-milled in an aqueous slurry for 3 days using Zirconia beads in the following formula. For each gram of incorporated developer, 0.2 g of sodium tri-isopropylnaphthalene sulfonate, 10 g of water, and 25 ml of beads were added. Following milling, the zirconia beads were removed by filtration. The slurry was refrigerated prior to use.
- the resulting coatings were exposed through a step wedge to a 3.04 log lux light source at 3000K filtered by Daylight 5A and Wratten 2B filters. The exposure time was 1 second. After exposure; the coating was thermally processed by contact with a heated platen for 20 seconds. A number of strips were processed at a variety of platen temperatures in order to yield an optimum strip process condition. From this data, two parameters were obtained:
- Table 1-2 shows the results for the coatings used in Example 1. Items listed are the developer, the onset temperature T o , and the relative discrimination, D p . The comparative examples developers are materials shown in the art. Coating Developer T o (°C) D p C-1-1 (comparative) DC-1 191 0.23 C-1-2 (comparative) DC-2 141 3.98 I-1-1 (inventive) D-17 144 5.55
- the resulting coatings were exposed through a step wedge to a 3.04 log lux light source at 3000K filtered by Daylight 5A and Wratten 2B filters. The exposure time was 1 second. After exposure, the coating was thermally processed by contact with a heated platen for 20 seconds. A number of strips were processed at a variety of platen temperatures in order to yield an optimum strip process condition. The two photographic parameters were measured by the methods of Example 1. The resulting parameters are shown in Table 2-2. Coating Developer T o (°C) D p C-2-1 (comparative) DC-1 164 3.61 C-2-2 (comparative) DC-2 170 3.20 I-2-1 (inventive) D-28 140 6.49 I-2-2 (inventive) D-29 164 5.40
- the following example was performed similarly to the previous examples except for the incorporated developer preparation and the coating format.
- the incorporated crystalline developers were prepared by the following ball milling procedure. To a total 10 g sample was added 1g of incorporated developer, 0.15 g of polyvinyl pyrrolidone, 8.85 g of distilled water, and 10 mL of zirconia beads. The slurry was ball-milled for 24 hours. Following milling, the zirconia beads were removed by filtration. The slurry was refrigerated prior to use.
- the coating examples were prepared according to the format listed in Table 3-1 below, with variations consisting of changing the incorporated developer. The pH of the coatings were adjusted to a common value of 6.0. All coatings were prepared on a 7 mil thick poly(ethylene terephthalate) support.
- Component Laydown Silver from emulsion E-1) 0.86 g/m 2 Silver (from silver salt SS-1) 0.54 g/m 2 Coupler M-1 (from coupler dispersion CDM-1) 0.54 g/m 2 Salicylanilide 1.08 g/m 2 1-phenyl-5-mercaptotetrazole 0.32 g/m 2 Lime processed gelatin 6.09 g/m 2 Developer 1.08 g/m 2 melt pH 6.0
- the resulting coatings were exposed through a step wedge to a 2.40 log lux light source at 5500K and Wratten 2B filter. The exposure time was 10 seconds. After exposure, the coating was thermally processed by contact with a heated platen. The coatings were evaluated for fresh image discrimination and high humidity raw stock keeping.
- the high humidity keeping test compared a fresh coating minimum density with the minimum density for a coating that was placed into a heated oven at 50 °C and 80 % relative humidity for 24 hours. The results of this test are listed in Table 3-2.
- the following example included a coating that was prepared similar to the methods of example 3.
- the coating format included changes as indicated below.
- the coating example was prepared according to the format listed in Table 4-1 below. Four developers of this invention were evaluated. The formulation was coated on a 7 mil thick poly(ethylene terephthalate) support.
- Component Laydown Silver from emulsion E-1) 0.86 g/m 2 Coupler C-2 (from coupler dispersion CDC-2) 1.08 g/m 2 Developer 0.86 g/m 2 Antifoggant AF-1 15 mg/m 2 Hardener B-1 58 mg/m 2 Lime processed gelatin 3.23 g/m 2 Developer 0.86 g/m 2
- the resulting coatings were exposed through a step wedge to a 2.40 log lux light source at 5500K and Wratten 2B filter. The exposure time was 1/50 second. After exposure, the coating was soaked in Activator A or B for 15 seconds and laminated to a passive coating containing 1.08 g/m 2 of gelatin. The film package was then processed by contact with a heated platen at 50 or 70 °C for 10 seconds and evaluated for image. A negative cyan colored dye image was observed for blocked color developers D-28, D-38, and D-39. A silver scale image was observed for the blocked black and white developer D-30. The results are summarized in Table 4-2. The density measured for each coating was Status M red density.
- Activator A (concentrations by weight in distilled water) 2.65 % sodium carbonate 0.63 % sodium bicarbonate 0.1 % sodium bromide 0.2 % sodium sulfite
- Activator B 74.5 g/L KOH 8 g/L potassium sulfite 2 g/L potassium bromide Coating Developer Activator/time/temp.
- the following example is similar to the previous example except that the blocked developer is removed from the emulsion containing layer and is placed into a separate laminate layer.
- the coatings are similarly activated with an alkali containing bath.
- the emulsion coating example was prepared according to the format listed in Table 5-1 below.
- the coating consisted of an emulsion layer with a gelatin overcoat layer.
- the formulation was coated on a 7 mil thick poly(ethylene terephthalate) support.
- Component Laydown Silver from emulsion E-1) 0.86 g/m 2 Coupler C-2 (from coupler dispersion CDC-2) 1.08 g/m 2 Antifoggant AF-1 15 mg/m 2 Lime processed gelatin 3.23 g/m 2 Overcoat gelatin 0.43 g/m 2 Hardener B-1 66 mg/m 2
- the laminate layer consisted of developer and gelatin and was coated according to the format listed in Table 5-2 below.
- the developer mass laydown was corrected for molecular weight and the equivalents of developer released per molecule.
- the formulation was coated on a 7 mil thick poly(ethylene terephthalate) support.
- Component Laydown Developer 0.67 me./m 2 Lime processed gelatin 1.61 g/m 2 Hardener B-1 29 mg/m 2
- the emulsion coatings were exposed through a step wedge to a 2.40 log lux light source at 5500K and Wratten 2B filter. The exposure time was 1/50 second. After exposure, the coating was soaked in Activator B or C for 15 seconds and laminated to the coatings containing developer. The film package was then processed by contact with a heated platen at 50 or 70 °C for 15 seconds and evaluated for image. A negative cyan colored dye image was observed for all of the developers. The results are summarized in Table 5-3. The density measured for each coating was Status M red density.
- Activator C (concentrations by weight in distilled water) 5.0 % sodium carbonate 0.14 % Triton X-200E surfactant
- Activator D (concentrations by weight in distilled water) 5.0 % potassium hydroxide 0.20 % Triton X-100 surfactant Coating Developer Activator / time / temp.
- a multilayer imaging element as described in Figure 6-1 was created to show that the developers of invention provide sufficient image formation capability to allow for use in full color photothermographic elements intended for capturing live scenes.
- the resulting coating was exposed through a step wedge to a 2.40 log lux light source at 5500K and Wratten 2B filter. The exposure time was 0.1 seconds. After exposure, the coating was thermally processed by contact with a heated platen for 20 seconds at 145 C. The coating was subsequently fixed by immersion in Flexicolor fix solution at 15C for 2 minutes. Cyan, magenta, and yellow densities were read using status M color profiles, to yield the densities listed in Table 6-1 below. It is clear from the formation of substantial imagewise density in all three color channels that to coating serves as a useful photographic element capturing multicolor information. Record Dmin Dmax Cyan 0.58 1.43 Magenta 0.8 2.12 Yellow 0.64 1.68
- the film element of this example was further loaded into a single lens reflex camera equipped with a 50 mm / f 1.7 lens.
- the exposure control of the camera was set to ASA 100 and a live scene was captured with this photographic element.
- the element was developed by heating for 20 seconds at 145 C to yield a clearly discernible negative color image, after which the element was fixed by immersion in Flexicolor fix solution.
- the resulting image was scanned with a Kodak PhotoCD scanner.
- the digital image file thus obtained was loaded into Adobe Photoshop (version 5.0.2) where corrections were made digitally to modify tone scale and color saturation, thus rendering an acceptable image.
- the image was viewed as softcopy by means of a computer monitor.
- the image file was then sent to a Kodak 8650 dye sublimation printer to render a hardcopy output of acceptable quality. This demonstrates the use of an element containing the inventive compounds in a complete imaging chain.
- a multilayer imaging element as described in Figure 7-1 was created to show that the developers of invention provide sufficient image formation capability to allow for use in full color photothermographic elements intended for capturing live scenes.
- the multilayer element of this example produced an image with no wet processing steps.
- Overcoat 1.1 g/m 2 Gelatin 0.32 g/m 2 Hardener-2 Fast Yellow 0.54 g/m 2 AgBrI from emulsion EY-3 0.17 g/m 2 silver benzotriazole from SS-1 0.17 g/m 2 silver-1-phenyl-5-mercaptotetrazole from SS-2 0.29 g/m2 coupler Y-1 from dispersion CDY-1 0.46 g/m 2 Developer D-28 0.46 g/m 2 Salicylanilide 2.3 g/m 2 Gelatin Slow Yellow 0.27 g/m 2 AgBrI from emulsion EY-4 0.16 g/m 2 AgBrI from emulsion EY-5 0.15 g/m 2 silver benzotriazo
- the resulting coating was exposed through a step wedge to a 1.8 log lux light source at 5500K and Wratten 2B filter. The exposure time was 0.1 seconds. After exposure, the coating was thermally processed by contact with a heated platen for 20 seconds at 145 C. Cyan, magenta, and yellow densities were read using status M color profiles, to yield the densities listed in Table 7-2 below. It is clear from these densities that to coating serves as a useful photographic element capturing multicolor information. Record Dmin Dmax Cyan 0.38 1.47 Magenta 0.72 2.65 Yellow 0.68 1.80
- the film element of example 5 was further loaded into a single lens reflex camera equipped with a 50 mm / f 1.7 lens.
- the exposure control of the camera was set to ASA 100 and a live scene indoors without the use of a flash was captured on the above element.
- the element was developed by heating for 20 seconds at 145 C and no subsequent processing was done to the element.
- the resulting image was scanned with a Nikon LS2000 film scanner.
- the digital image file thus obtained was loaded into Adobe Photoshop (version 5.0.2) where corrections were made digitally to modify tone scale and color saturation, thus rendering an acceptable image.
- the image was viewed as softcopy by means of a computer monitor.
- the image file was then sent to a Kodak 8650 dye sublimation printer to render a hardcopy output of acceptable quality. This demonstrates the use of an element containing the inventive compounds in a complete imaging chain.
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Application Number | Priority Date | Filing Date | Title |
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US475703 | 1999-12-30 | ||
US09/475,703 US6756192B1 (en) | 1999-12-30 | 1999-12-30 | Imaging element containing a blocked photographically useful compound |
US614035 | 2000-07-11 | ||
US09/614,035 US6759187B1 (en) | 1999-12-30 | 2000-07-11 | Imaging element containing a blocked photographically useful compound |
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EP (2) | EP1113326A3 (de) |
JP (1) | JP2001242605A (de) |
KR (1) | KR20010082583A (de) |
CN (1) | CN1301990A (de) |
BR (1) | BR0010438A (de) |
CA (1) | CA2328695A1 (de) |
TW (1) | TW588213B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6645711B2 (en) | 2001-07-18 | 2003-11-11 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive material |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6790569B2 (en) | 2000-06-13 | 2004-09-14 | Eastman Kodak Company | Color photothermographic elements comprising phenolic thermal solvents |
JP2003043648A (ja) | 2001-05-23 | 2003-02-13 | Fuji Photo Film Co Ltd | ハロゲン化銀写真感光材料及びそれを用いた画像形成方法 |
US6531271B1 (en) * | 2001-08-16 | 2003-03-11 | Eastman Kodak Company | Color photographic element comprising a multifunctional dye-forming coupler |
US6497999B1 (en) * | 2001-11-21 | 2002-12-24 | Eastman Kodak Company | Method of passivating silver donors in photothermographic systems and imaging elements made thereby |
US6576411B1 (en) * | 2001-11-21 | 2003-06-10 | Eastman Kodak Company | Method of passivating a silver donor with a dye and photothermographic systems made thereby |
USD763730S1 (en) | 2014-10-13 | 2016-08-16 | Robert Nielsen | Button cover with a clasp |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4157915A (en) * | 1977-05-02 | 1979-06-12 | Fuji Photo Film Co., Ltd. | Color photographic light-sensitive material containing development precursor |
JPS5895344A (ja) * | 1981-11-16 | 1983-06-06 | Konishiroku Photo Ind Co Ltd | 画像形成処理方法 |
US4430424A (en) * | 1981-09-04 | 1984-02-07 | Konishiroku Photo Industry Co., Ltd. | Color photographic light-sensitive material |
JPS62131253A (ja) * | 1985-12-03 | 1987-06-13 | Fuji Photo Film Co Ltd | 画像形成方法 |
JPS63123046A (ja) * | 1986-11-13 | 1988-05-26 | Fuji Photo Film Co Ltd | カラ−画像形成方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59111636A (ja) * | 1982-12-17 | 1984-06-27 | Fuji Photo Film Co Ltd | 熱現像カラー感光材料およびそれを用いたカラー画像形成方法 |
JPS61250636A (ja) * | 1985-04-30 | 1986-11-07 | Fuji Photo Film Co Ltd | 熱現像感光材料 |
US5773560A (en) * | 1996-07-25 | 1998-06-30 | Fuji Photo Film Co., Ltd. | Silver halide color photographic light-sensitive material and color image forming method |
-
2000
- 2000-12-15 TW TW089126841A patent/TW588213B/zh not_active IP Right Cessation
- 2000-12-15 CN CN00135984A patent/CN1301990A/zh active Pending
- 2000-12-15 CA CA002328695A patent/CA2328695A1/en not_active Abandoned
- 2000-12-15 KR KR1020000077219A patent/KR20010082583A/ko not_active Application Discontinuation
- 2000-12-15 EP EP00311241A patent/EP1113326A3/de not_active Withdrawn
- 2000-12-15 EP EP00311239A patent/EP1113316A3/de not_active Withdrawn
- 2000-12-15 JP JP2000382141A patent/JP2001242605A/ja active Pending
- 2000-12-15 BR BR0010438-8A patent/BR0010438A/pt not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4157915A (en) * | 1977-05-02 | 1979-06-12 | Fuji Photo Film Co., Ltd. | Color photographic light-sensitive material containing development precursor |
US4430424A (en) * | 1981-09-04 | 1984-02-07 | Konishiroku Photo Industry Co., Ltd. | Color photographic light-sensitive material |
JPS5895344A (ja) * | 1981-11-16 | 1983-06-06 | Konishiroku Photo Ind Co Ltd | 画像形成処理方法 |
JPS62131253A (ja) * | 1985-12-03 | 1987-06-13 | Fuji Photo Film Co Ltd | 画像形成方法 |
JPS63123046A (ja) * | 1986-11-13 | 1988-05-26 | Fuji Photo Film Co Ltd | カラ−画像形成方法 |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 007, no. 196 (P-219), 26 August 1983 (1983-08-26) & JP 58 095344 A (KONISHIROKU SHASHIN KOGYO KK), 6 June 1983 (1983-06-06) * |
PATENT ABSTRACTS OF JAPAN vol. 011, no. 354 (P-638), 19 November 1987 (1987-11-19) & JP 62 131253 A (FUJI PHOTO FILM CO LTD), 13 June 1987 (1987-06-13) * |
PATENT ABSTRACTS OF JAPAN vol. 012, no. 377 (P-768), 7 October 1988 (1988-10-07) & JP 63 123046 A (FUJI PHOTO FILM CO LTD), 26 May 1988 (1988-05-26) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6645711B2 (en) | 2001-07-18 | 2003-11-11 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive material |
Also Published As
Publication number | Publication date |
---|---|
EP1113316A3 (de) | 2001-08-29 |
CN1301990A (zh) | 2001-07-04 |
EP1113326A3 (de) | 2001-08-29 |
BR0010438A (pt) | 2002-06-25 |
TW588213B (en) | 2004-05-21 |
JP2001242605A (ja) | 2001-09-07 |
CA2328695A1 (en) | 2001-06-30 |
EP1113316A2 (de) | 2001-07-04 |
KR20010082583A (ko) | 2001-08-30 |
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