EP0919862A1 - Photothermographisches Bildaufzeichnungselement, das einen Lichthofschutzfarbstoff enthält - Google Patents

Photothermographisches Bildaufzeichnungselement, das einen Lichthofschutzfarbstoff enthält Download PDF

Info

Publication number
EP0919862A1
EP0919862A1 EP98203843A EP98203843A EP0919862A1 EP 0919862 A1 EP0919862 A1 EP 0919862A1 EP 98203843 A EP98203843 A EP 98203843A EP 98203843 A EP98203843 A EP 98203843A EP 0919862 A1 EP0919862 A1 EP 0919862A1
Authority
EP
European Patent Office
Prior art keywords
photothermographic
substituted
dye
layer
unsubstituted
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.)
Granted
Application number
EP98203843A
Other languages
English (en)
French (fr)
Other versions
EP0919862B1 (de
Inventor
Charles Harry Weidner
Dorothy Theresa Java
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP0919862A1 publication Critical patent/EP0919862A1/de
Application granted granted Critical
Publication of EP0919862B1 publication Critical patent/EP0919862B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/494—Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds
    • G03C1/498—Photothermographic systems, e.g. dry silver
    • G03C1/49872—Aspects relating to non-photosensitive layers, e.g. intermediate protective layers
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/7614—Cover layers; Backing layers; Base or auxiliary layers characterised by means for lubricating, for rendering anti-abrasive or for preventing adhesion
    • G03C2001/7628—Back layer

Definitions

  • This invention relates to a photothermographic imaging element suited for use with a red or near-infrared laser. More specifically, this invention relates to a photothermographic imaging element comprising an antihalation dye.
  • photosensitive emulsion layers or other layers of silver halide light-sensitive materials colored layers that absorb light of specific wavelengths in order to provide filtration of unwanted wavelengths of light, absorb scattered light within a layer, or provide halation protection.
  • These coloring layers can be located above the photosensitive layer, within the photosensitive layer, between the photosensitive layer and the support or on the opposite side of the support. When the colored layer is located in the latter three areas as described above, it is able to prevent unwanted back reflection of the light, thus providing halation protection to the photosensitive material.
  • Antihalation is particularly important when a film is exposed using a laser because of the high intensity of light emitted by the laser necessitating high levels of dye to be used in order to provide adequate absorption of light. This can lead to undesirable coloration of the photographic element, particularly with regard to a photothermographic system where wet processing steps are unavailable to provide washout of the filtration dye.
  • the problem to be solved by this invention is to provides a photothermographic element containing a dye that is useful for absorbing laser light in the red and near-infrared regions (i.e. in a wavelength range of 660 to 800 nm), that has very little extraneous absorption in unwanted areas of the visible spectrum, that is stable with time and that functions as an antihalation dye.
  • This invention comprises a photothermographic imaging element comprising a support, a photothermographic imaging layer and at least one non-imaging layer positioned above the imaging layer, between the imaging layer and the support or on the side of the support opposite the imaging layer, wherein the non-imaging layer contains a dye of structure I : wherein
  • a particular advantage of the dyes utilized in the preparation of a photothermographic element in accordance with the invention is the solubility of the dyes which allows coating of the antihalation element in a variety of polymeric binders. Another advantage is the excellent absorption of these dyes at the desired wavelengths as evidenced by their state-of-the-art properties as antihalation dyes in a photothermographic element. Another advantage is the stability of these dyes with time, both under hydrolytic and photolytic conditions.
  • the dyes utilized in the photothermographic element of this invention is a dye of structure I: wherein
  • Alkyl and alkoxy groups preferably contain 1 to 10 carbon atoms, more preferably 1 to 6 carbon atoms.
  • Alkyl groups include, for example, methyl, ethyl, propyl, isopropyl, butyl sec. butyl, tert. butyl, heptyl or decyl.
  • Alkoxy groups include, for example, methoxy, ethoxy, propoxy, or tert. butoxy.
  • Aryl and aryloxy groups preferably contain 6 to 12 carbon atoms, more preferably 5 to 8 carbon atoms.
  • Aryl groups that can be used include, for example, phenyl, tolyl, naphthyl, 2,4-dimethylphenyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2-isopropylphenyl, 3-isopropylphenyl, 4-isopropylphenyl, 4-tert-butylphenyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2-ethoxyphenyl, 4-ethoxyphenyl, or 4-isopropoxyphenyl.
  • Aryloxy groups include, for example, phenoxy, substituted phenoxy such as 2-methylphenoxy, 4-methylphenoxy, 2-ethylphenoxy, 4-ethylphenoxy, 4-eumylphenoxy, 4-isopropylphenoxy, 4-tert-butyl-phenoxy, 2-chlorophenoxy, or 4,-chlorophenoxy.
  • Aromatic ring structures include, for example phenyl, 1,2-naphthyl, 2,3-naphthyl, or phenanthryl.
  • Heteroaromatic rings include, for example, pyridine, pyrazine, pyridazine and pyrimidine.
  • substituent groups refers to a substituted or unsubstituted alkyl
  • benzene group refers to a substituted or unsubstituted benzene (with up to six substituents).
  • substituent groups usable on molecules herein include any groups, whether substituted or unsubstituted, which do not destroy properties necessary for the photothermographic 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, or ethyl. Further, with regard to any alkyl group or alkylene group, it will be understood that these can be branched or unbranched and include ring structures.
  • Dyes of structure I are known and some are commercially available.
  • the dyes can be made by the methods outlined in The Phthalocyanines, Vol. I and II, Moser, F.H. and Thomas, A.L., CRC Press, Boca Raton, Florida, 1983 or by the method of Wöhrle, D.; Schnurpfeil, G.; Knothe, G. Dyes and Pigments 1992, 18 , 91.
  • Illustrative dyes for use in the photothermographic element of this invention are represented, but not limited to, the examples shown in Table 1 (the peak absorption ( ⁇ max) of the dyes dissolved in acetone (or toluene) is also given in Table 1):
  • the photothermographic element of this invention typically comprises a support, a photothermographic layer, a backing layer, an overcoat layer and various interlayers, such as, subbing layers, and filter layers.
  • the antihalation dye used in accordance with this invention can be in any of the layers of the photothermographic element.
  • the dye is incorporated into a backing layer (e.g. a pelloid layer) or a layer between the support and the photothermographic layer.
  • the layers of a photothermographic element are generally prepared from a solution containing a binder and other components to give the layer the desired properties in an appropriate solvent.
  • an antihalation dye is dissolved in a solvent together with a binder for incorporation into the desired layer of the photothermographic element.
  • the binder can be a hydrophobic binder preferably polymethyl methacrylate, polystyrene, polyvinyl butyral, or cellulose acetate butyrate.
  • Preferred solvents for use with a hydrophobic binder are aromatic solvents, such as, toluene or xylene, ketone solvents, such as, methyl ethyl ketone, and methyl isobutyl ketone, tetrahydrofuran, ethyl acetate, chlorinated solvents such as dichloromethane.
  • the solvent can contain water, if desired.
  • the binder is a hydrophilic binder, preferably gelatin.
  • the hydrophilic binder is generally dissolved in an aqueous medium for incorporation into the desired layer of the photothermographic element.
  • the dye is preferably used in an amount of 10 to 10,000 ppm (parts per million), more preferably 10 to 1,000 ppm, based on the amount of binder in the layer.
  • Typical photothermographic elements of this invention comprise at least one photothermographic layer containing in reactive association in a binder, preferably a binder comprising hydroxyl groups, (a) photographic silver halide prepared in situ and/or ex situ, (b) an image-forming combination comprising (i) an organic silver salt oxidizing agent, preferably a silver salt of a long chain fatty acid, such as silver behenate, with (ii) a reducing agent for the organic silver salt oxidizing agent, preferably a phenolic reducing agent, and (c) an optional toning agent.
  • References describing such imaging elements include, for example, U.S. Patents 3,457,075; 4,459,350; 4,264,725 and 4,741,992 and Research Disclosure, June 1978, Item No. 17029.
  • 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 10 moles of photographic silver halide per mole of silver behenate in the photothermographic material.
  • Other photosensitive silver salts are useful in combination with the photographic silver halide if desired.
  • Preferred photographic silver halides are silver chloride, silver bromide, silver bromochloride, silver bromoiodide, silver chlorobromoiodide, and mixtures of these silver halides. Very fine grain photographic silver halide is especially useful.
  • the photographic silver halide can be prepared by any of the known procedures in the photographic art.
  • Such procedures for forming photographic silver halides and forms of photographic silver halides are described in, for example, Research Disclosure, December 1978, Item No. 17029 and Research Disclosure, June 1978, Item No. 17643.
  • Tabular grain photosensitive silver halide is also useful, as described in, for example, U.S. Patent No. 4,435,499.
  • the photographic silver halide can be unwashed or washed, chemically sensitized, protected against the formation of fog, and stabilized against the loss of sensitivity during keeping as described in the above Research Disclosure publications.
  • the silver halides can be prepared in situ as described in, for example, U.S. Patent No. 4,457,075, or prepared ex situ by methods known in the photographic art.
  • the photothermographic element typically comprises an oxidation-reduction image forming combination that contains an organic silver salt oxidizing agent, preferably a silver salt of a long chain fatty acid.
  • organic silver salts are resistant to darkening upon illumination.
  • Preferred organic silver salt oxidizing agents are silver salts of long chain fatty acids containing 10 to 30 carbon atoms. Examples of useful organic silver salt oxidizing agents are silver behenate, silver stearate, silver oleate, silver laurate, silver hydroxystearate, silver caprate, silver myristate, and silver palmitate. Combinations of organic silver salt oxidizing agents are also useful. Examples of useful organic silver salt oxidizing agents that are not organic silver salts of fatty acids are silver benzoate and silver benzotriazole.
  • the optimum concentration of organic silver salt oxidizing agent in the photothermographic element will vary depending upon the desired image, particular organic silver salt oxidizing agent, particular reducing agent and particular photothermographic element.
  • a preferred concentration of organic silver salt oxidizing agent is within the range of 0.1 to 100 moles of organic silver salt oxidizing agent per mole of silver halide in the element.
  • the total concentration of organic silver salt oxidizing agents is preferably within the described concentration range.
  • reducing agents are useful in the photothermographic element.
  • useful reducing agents in the image-forming combination include substituted phenols and naphthols, such as bis-beta-naphthols; polyhydroxybenzenes, such as hydroquinones, pyrogallols and catechols; aminophenols, such as 2,4-diaminophenols and methylaminophenols; ascorbic acid reducing agents, such as ascorbic acid, ascorbic acid ketals and other ascorbic acid derivatives; hydroxylamine reducing agents; 3-pyrazolidone reducing agents, such as 1-phenyl-3-pyrazolidone and 4-methyl-4-hydroxymethyl-1-phenyl-3-pyrazolidone; and sulfonamidophenols and other organic reducing agents known to be useful in photothermographic elements, such as described in U.S. Patent 3,933,508, U.S. Patent 3,801,321 and Research Disclosure, June 1978, Item No. 17029. Combinations of organic reducing agents
  • Preferred organic reducing agents in the photothermographic element are sulfonamidophenol reducing agents, such as described in U.S. Patent 3,801,321.
  • useful sulfonamidophenol reducing agents are 2,6-dichloro-4-benzene- sulfonamidophenol; benzenesulfonamidophenol; and 2,6-dibromo-4-benzenesulfonamidophenol, and combinations thereof.
  • 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 preferably comprises 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 and 2-acetylphthalazinone.
  • 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 as described 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, or gum arabic; 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.
  • Photothermographic elements 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, other absorbing and filter dyes, such as described in Research Disclosure, December 1978, Item No. 17643 and Research Disclosure, June 1978, Item No. 17029.
  • the photothermographic element can comprise a variety of supports.
  • 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, glass, metal, and other supports that withstand the thermal processing temperatures.
  • 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.
  • Spectral sensitizing dyes are useful in the photothermographic element to confer added sensitivity to the element.
  • Useful sensitizing dyes are described in, for example, Research Disclosure, June 1978, Item No. 17029 and Research Disclosure, December 1978, Item No. 17643.
  • 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.
  • a photothermographic element typically has a transparent protective layer comprising a film forming binder, preferable a hydrophilic film forming binder.
  • binders include, for example, crosslinked polyvinyl alcohol, gelatin, or poly(silicic acid). Particularly preferred are binders comprising poly(silicic acid) alone or in combination with a water-soluble hydroxyl-containing monomer or polymer as described in the US Patent No. 4,828,971.
  • the term "protective layer” is used in this application to mean a transparent, image insensitive layer that can be an overcoat layer, that is a layer that overlies the image sensitive layer(s), or a backing layer, that is a layer that is on the opposite side of the support from the image sensitive layer(s).
  • the imaging element can contain an adhesive interlayer between the protective layer and the underlying layer(s).
  • the protective layer is not necessarily the outermost layer of the imaging element.
  • the protective layer can contain an electrically conductive layer having a surface resistivity of less than 5 x 10 11 ohms/square.
  • electrically conductive overcoat layers are described in US Patent No. 5,547,821.
  • a photothermographic imaging element generally includes at least one transparent protective layer containing matte particles.
  • Either organic or inorganic matte particles can be used.
  • organic matte particles are often in the form of beads, of polymers such as polymeric esters of acrylic and methacrylic acid, e.g., poly(methylmethacrylate), styrene polymers and copolymers.
  • inorganic matte particles are of glass, silicon dioxide, titanium dioxide, magnesium oxide, aluminum oxide, barium sulfate, and calcium carbonate. Matte particles and the way they are used are further described in U.S. Patent Nos. 3,411,907, 3,754,924, 4,855,219, 5,279,934, 5,288,598, 5,378,577, 5,750,328 and 5,563,226.
  • the protective layer should be transparent and should not adversely affect sensitometric characteristics of the photothermographic element such as minimum density, maximum density and photographic speed.
  • Useful protective layers include those comprised of poly(silicic acid) and a water-soluble hydroxyl containing monomer or polymer that is compatible with poly(silicic acid) as described in U.S. Patent 4,741,992 and 4,828,971. A combination of poly(silicic acid) and poly(vinyl alcohol) is particularly useful.
  • Other useful protective layers include those formed from polymethylmethacrylate, acrylamide polymers, cellulose acetate, crosslinked polyvinyl alcohol, terpolymers of acrylonitrile, vinylidene chloride, and 2-(methacryloyloxy)ethyl-trimethylammonium methosulfate, crosslinked gelatin, polyesters and polyurethanes.
  • the photothermographic elements are exposed by means of various forms of energy, including those to which the photographic silver halides are sensitive, e.g., include ultraviolet, visible 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. Imagewise exposure is preferably for a time and intensity sufficient to produce a developable latent image in the photothermographic element.
  • the resulting latent image is developed merely 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 90°C. to 180°C. until a developed image is formed, such as within 0.5 to 60 seconds.
  • a preferred thermal processing temperature is within the range of 100°C. to 140°C.
  • Heating means known in the photothermographic imaging 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, or heated air.
  • 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 imaging layer of the element. This, in some cases, reduces migration of certain addenda in the layers of the element.
  • the components of the imaging combination be "in association" with each other in order to produce the desired image.
  • association herein means that in the photothermographic element the photographic silver halide and the image forming combination are in a location with respect to each other that enables the desired processing and forms a useful image.
  • the other examples of the present invention can be made in an analogous fashion, from the appropriately substituted phthalonitrile and a multi-valent metal salt.
  • emulsion Component Grams Silver Behenate dispersion (contains 26.4% by weight silver behenate in 8.5% by weight methyl ethyl ketone (MEK) / toluene (80:20) solution of polyvinylbutyral (ButvarTM B-76 available from Monsanto Co., USA) 877.8 Silver bromide (silver bromide emulsion contains 45.9 g Ag in 9% by weight MEK solution of Butvar B-76) containing sodium Iodide (NaI) (0.1% by weight) 127.1 Sensitizing dye (0.17% by weight solution in MEK / 2-ethoxy ethanol (90:10)) 64.4 Succinimide (toner) 3.5 phthalimide (toner) 14.0 SF-96 (10% by weight SF-96 in MEK.
  • SF-96TM a silicone available from General Electric Co., U.S.A.
  • Palmitic acid (10% by weight in 10.5% by weight MEK solution of Butvar B-76) 30.6 N (4-hydroxyphenyl)benzenesulfonamide (12% by weight in 10.5% by weight MEK solution of Butvar B-76) 350.0 Butvar B-76 (10.5% by weight in MEK / Toluene 65:35) 105.2
  • the resulting photothermographic solution silver halide composition was coated at a wet laydown of 68.6 grams/m 2 on a blue (0.16 overall visual density) poly-(ethyleneterephthalate) film support, containing 250 ppm of dye C-1.
  • composition (B) Component Grams Distilled Water 226.4 Polyvinyl Alcohol (PVA) (6.2% by weight in distilled water) (binder) 443.0 Tetraethyl Orthosilicate (35.4% by weight in methanol / water (53:47)) (hardener) 251.6 p-Toluene Sulfonic Acid (1N solution in distilled water) 3.1 para-isononylphenoxy polyglycidol, Olin 10GTM available from Olin Corp., USA (10% by weight in distilled water) 10.0 Silica (1.5 micron) (matting agent) 3.0
  • the resulting overcoat formulation (B) was coated at a wet laydown of 40.4 grams/m 2 . The coating was permitted to dry.
  • An emulsion (A) was prepared as described in Example 4, coated on clear support, except that on the pelloid side of the film an Antihalation dye was coated with the following formulation: Component Grams Phthalocyanine Dye #4 (Table 1) (2.3% by weight in Acetone) (Antihalation dye) 12.5 Butvar B-76 (6.0% by weight in MEK / Toluene (80:20)) (binder) 191.4 SF-96 (10% by weight SF-96 in MEK.) (surfactant) 0.3 The resulting composition was coated at a wet laydown of 50.8 grams/m 2 on a poly(ethyleneterephthalate) film support. The coating was permitted to dry and was then overcoated with the same overcoat composition (B) in Example 1. The resulting pelloid overcoat formulation was coated at a wet laydown of 40.4 grams/m 2 . The coating was permitted to dry.
  • An emulsion (A) was prepared as described in Example 4, coated on clear support, except that on the pelloid side of the film an Antihalation dye was coated with the following formulation: Component Grams Phthalocyanine Dye #4 (Table 1) (2.3% by weight 17.5 Butvar B-76 (6.2% by weight in MEK / Toluene80:20) (binder) 186.4 SF-96 (10% by weight SF-96 in MEK.) (surfactant) 0.3
  • the resulting composition was coated at a wet laydown of 50.8 grams/m 2 on a poly(ethyleneterephthalate) film support.
  • the coating was permitted to dry and was then overcoated with the same overcoat composition (B) in Example 1.
  • the resulting pelloid overcoat formulation was coated at a wet laydown of 40.4 grams/m 2 . The coating was permitted to dry.
  • An emulsion (A) was prepared as described in Example 4, coated on clear support, except that on the pelloid side of the film an Antihalation dye was coated with the following formulation: Component Grams Phthalocyanine Dye #4 (Table 1) (2.3% by weight in acetone) (Antihalation dye) 21.2 Butvar B-76 (6.3% by weight in MEK / Toluene 80:20) (binder) 182.7 SF-96 (10% by weight SF-96 in MEK.) (surfactant) 0.3
  • the resulting composition was coated at a wet laydown of 50.8 grams/m 2 on a poly(ethyleneterephthalate) film support. The coating was permitted to dry and was then overcoated with the same overcoat composition (B) in Example 1. The resulting pelloid overcoat formulation was coated at a wet laydown of 40.4 grams/m 2 . The coating was permitted to dry.
  • the dyes of the invention may also be coated as solid particle dispersions in a hydrophilic layer.
  • Ingredient Amount Dye 4 1.0 g 0.437% aqueous TX 200 23.0 g 1.8 mm Zirbeads 60 cc
  • the dye and TX 200 (octylphenoxyethylene oxide sulfonate, commercially available from Rohm and Haas) solution were combined in a clean, dry 120 cc amber bottle and the pH was recorded. The pH was adjusted to ⁇ 5 if needed, and the Zirbeads (zirconia beads)were then added, the bottle was sealed and milled on a SWECO vibratory mill for 5 days. Filter off Zirbeads to provide a dye slurry used in the next step.
  • TX 200 octylphenoxyethylene oxide sulfonate, commercially available from Rohm and Haas
  • This solid particle dispersion may be coated on the backside of the support as a pelloid layer, between the support and the emulsion, between the support and an interlayer, or between a polymeric underlayer and the emulsion.
  • the SMPTE patterns from the exposed and developed examples were visually evaluated on a light box and graded according to their sharpness and overall appearance:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
EP98203843A 1997-11-26 1998-11-14 Photothermographisches Bildaufzeichnungselement, das einen Lichthofschutzfarbstoff enthält Expired - Lifetime EP0919862B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97931797A 1997-11-26 1997-11-26
US979317 1997-11-26

Publications (2)

Publication Number Publication Date
EP0919862A1 true EP0919862A1 (de) 1999-06-02
EP0919862B1 EP0919862B1 (de) 2003-10-15

Family

ID=25526841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98203843A Expired - Lifetime EP0919862B1 (de) 1997-11-26 1998-11-14 Photothermographisches Bildaufzeichnungselement, das einen Lichthofschutzfarbstoff enthält

Country Status (3)

Country Link
EP (1) EP0919862B1 (de)
JP (1) JPH11242306A (de)
DE (1) DE69818948T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952481A1 (de) * 1998-04-20 1999-10-27 Konica Corporation Wärmeentwickelbares photoempfindliches Material
EP1348997A1 (de) * 2002-03-29 2003-10-01 Fuji Photo Film Co., Ltd. Wärmeentwickelbares lichtempfindliches Material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258129A (en) * 1974-10-31 1981-03-24 Fuji Photo Film Co., Ltd. Thermally developable light sensitive material using trivalent and tetravalent cerium compounds
EP0655645A1 (de) * 1993-11-29 1995-05-31 Minnesota Mining And Manufacturing Company Photographisches Silberhalogenidmaterial mit verminderndem Schleier und verbesserten zurückbleibenden Flecken
EP0889355A1 (de) * 1997-07-04 1999-01-07 Agfa-Gevaert N.V. (Photo)thermographisches Material mit blauem Hintergrund

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2648992B2 (ja) * 1991-12-02 1997-09-03 富士写真フイルム株式会社 ハロゲン化銀写真感光材料

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258129A (en) * 1974-10-31 1981-03-24 Fuji Photo Film Co., Ltd. Thermally developable light sensitive material using trivalent and tetravalent cerium compounds
EP0655645A1 (de) * 1993-11-29 1995-05-31 Minnesota Mining And Manufacturing Company Photographisches Silberhalogenidmaterial mit verminderndem Schleier und verbesserten zurückbleibenden Flecken
EP0889355A1 (de) * 1997-07-04 1999-01-07 Agfa-Gevaert N.V. (Photo)thermographisches Material mit blauem Hintergrund

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952481A1 (de) * 1998-04-20 1999-10-27 Konica Corporation Wärmeentwickelbares photoempfindliches Material
US6287755B1 (en) 1998-04-20 2001-09-11 Konica Corporation Thermally developable photosensitive material
EP1348997A1 (de) * 2002-03-29 2003-10-01 Fuji Photo Film Co., Ltd. Wärmeentwickelbares lichtempfindliches Material
US6727057B2 (en) 2002-03-29 2004-04-27 Fuji Photo Film Co., Ltd. Heat-developable photosensitive material

Also Published As

Publication number Publication date
DE69818948D1 (de) 2003-11-20
DE69818948T2 (de) 2004-07-29
JPH11242306A (ja) 1999-09-07
EP0919862B1 (de) 2003-10-15

Similar Documents

Publication Publication Date Title
JP2648152B2 (ja) 熱処理可能な要素のための保護層
US4828971A (en) Thermally processable element comprising a backing layer
EP0969313B1 (de) Photothermographisches Material mit gewünschtem Farbton
EP1102120B1 (de) Wärmeentwickelbares Bildaufzeichnungsmaterial
US4886739A (en) Thermally processable imaging element and process
US4459350A (en) Photothermographic material and processing comprising a substituted triazine
EP0613046B1 (de) Thermisch verarbeitbares Aufzeichnungselement enthaltend eine Barriereschicht
EP0613045B1 (de) Verfahren zur Herstellung eines thermisch verarbeitbaren Bildaufzeichnungselements
EP0919864B1 (de) Einen Lichthofschutzfarbstoff enthaltender Träger für die Verwendung in photothermographischen Elementen
EP0919862B1 (de) Photothermographisches Bildaufzeichnungselement, das einen Lichthofschutzfarbstoff enthält
EP0742477B1 (de) Spektral sensibilisierte photothermographische Elemente
US4857439A (en) Photothermographic element and process
US5508162A (en) Photothermographic elements containing a combination of spectral sensitizers
US5891610A (en) Thermally processable imaging element with improved adhesion of the overcoat layer
US5714311A (en) Thermally processable imaging element comprising aryliodonium compounds
US6033839A (en) Polymeric matte particles
EP0919863B1 (de) Wärmeentwickelbare Bildaufzeichnungselemente mit verbesserten physikalischen Eigenschaften

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19991102

AKX Designation fees paid

Free format text: DE FR GB

17Q First examination report despatched

Effective date: 20020802

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20031024

Year of fee payment: 6

REF Corresponds to:

Ref document number: 69818948

Country of ref document: DE

Date of ref document: 20031120

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20041004

Year of fee payment: 7

26N No opposition filed

Effective date: 20040716

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050729

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051114

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20051130

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 20060316

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20051114