EP0152822B1 - Fotografisches Aufzeichnungsmaterial - Google Patents

Fotografisches Aufzeichnungsmaterial Download PDF

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Publication number
EP0152822B1
EP0152822B1 EP85100911A EP85100911A EP0152822B1 EP 0152822 B1 EP0152822 B1 EP 0152822B1 EP 85100911 A EP85100911 A EP 85100911A EP 85100911 A EP85100911 A EP 85100911A EP 0152822 B1 EP0152822 B1 EP 0152822B1
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EP
European Patent Office
Prior art keywords
iodide
emulsion
layer
silver halide
mol
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.)
Expired
Application number
EP85100911A
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German (de)
English (en)
French (fr)
Other versions
EP0152822A2 (de
EP0152822A3 (en
Inventor
Manfred Dr. Becker
Reinhart Dr. Matejec
Lothar Dr. Endres
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.)
Agfa Gevaert AG
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Agfa Gevaert AG
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Publication date
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Publication of EP0152822A2 publication Critical patent/EP0152822A2/de
Publication of EP0152822A3 publication Critical patent/EP0152822A3/de
Application granted granted Critical
Publication of EP0152822B1 publication Critical patent/EP0152822B1/de
Expired legal-status Critical Current

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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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • 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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03535—Core-shell grains
    • 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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03558—Iodide content

Definitions

  • the invention relates to a photographic recording material having at least one silver halide emulsion layer with grains which have a layered grain structure.
  • Silver halide crystals with a layered grain structure which therefore have a shell and at least one inner zone, are known.
  • Silver halide emulsions are known from DE-OS-3 205 896 and GB-A-2 095 853, the silver halide grains of which have a core of silver iodide and, above that, a shell of another silver halide.
  • Silver halide grains which have a relatively iodide-rich zone on the inside and a relatively iodide-poor outer zone on top, are also known from European patent specification 0 006 543 and Canadian patent specification 1 155 325. According to example 4 of the European patent specification, a silver chloride bromide emulsion is partially converted with iodide. A fine-grained silver bromide emulsion is added to the resulting emulsion in the presence of silver halide solvents, and it can be assumed that the silver halide grains of the fine-grained silver bromide emulsion are deposited on the converted silver halides. From European patent 0 006 543 it is also known that the emulsions described therein react in a marked manner to the presence of DIR compounds during photographic processing.
  • DIR couplers known from GB 953 454, which carry a substituent in the coupling site which is split off during the coupling with the liberation of a diffusing compound which inhibits the development of the silver halide.
  • DIR connections are also described in US Pat. Nos. 3,227,554, DE-OS 2,853,362, US Pat. No. 4,315,040 and European Patent Application 70 183.
  • DIR connections allow color quality to be achieved by Interimage -Effects and improve the image sharpness through edge effects, see e.g. B. C.R. Barr, J.R. Thirtle and P.W. Vittum, Phot. Sci. Engn., 13 (1969) 74.
  • DIR compounds have also become known, from which inhibitors are split off during color development and which are deactivated after a certain time by a subsequent reaction in the color developer: this prevents accumulation of inhibitors in the developer bath.
  • the strength of interimage and edge effects also depends on the silver halide emulsion. It is known that in the case of color negative materials, coarse-grain emulsions show both effects more than fine-grain emulsions.
  • the object of the invention was to provide photographic recording materials with improved emulsions.
  • a special task was to provide emulsions which enable a high edge effect in recording materials in the presence of DIR compounds.
  • Tetradecahedra are or transitional forms between cubes and tetradecahedra. In the case of transition shapes, rounded crystal corners and edges can also occur.
  • all zones of the crystals can also contain chloride.
  • at least one zone in which the iodide content does not assume a maximum contains chloride, the chloride content within such zones preferably being at least 1.5 mol%, in particular at least 30 mol%.
  • a zone in which the iodide content assumes a maximum is understood to be one whose iodide content is higher than that of the two immediately adjacent zones.
  • the boundaries between the zones of different composition can be sharp or unsharp.
  • the boundary between adjacent zones is defined in that the iodide content at the boundary is equal to the mean value of the iodide contents of the homogeneous regions of the adjacent zones.
  • Table 1 below contains a schematic overview of grains suitably constructed, but the invention is not restricted to these grain types.
  • the zones are given in order from the grain surface to the center.
  • the zone in the center is referred to as the "core”.
  • the silver halide grains to be used according to the invention can be produced using a variety of techniques (for example single entry, double entry, constant or accelerated material inflow, Ostwald solution).
  • Photographically active compounds such as compounds of copper, thallium, lead, bismuth, cadmium, ruthenium, rhodium, palladium, osmium, iridium, platinum, gold, sulfur, selenium and tellurium, can be present during the precipitation.
  • the silver halide emulsions according to the invention can be monodisperse or polydisperse in terms of precipitation. They can be mixed with one another or with other types of emulsions.
  • Monodisperse emulsions are particularly preferred, in which 70% of the spheres of the same size as the emulsion grains have a diameter which is between 0.8 times and 1.3 times that of the most common ball diameter.
  • the emulsions to be used according to the invention can be chemical by known methods be sensitized, e.g. B. with active gelatin or with compounds of sulfur, selenium, tellurium, gold, palladium, platinum, iridium, the pAg values between 5 and 10, the pH values between 5 and 8 and the temperatures between 30 ° C and 90 ° C can fluctuate; thiocyanate derivatives, thioethers and heterocyclic nitrogen compounds such as imidazoles, azaindenes, azapyridazines and azapyrimidines can be added during chemical sensitization.
  • the emulsions according to the invention can be subjected to a reduction sensitization, e.g. B.
  • the emulsions can be optically sensitized in a manner known per se, e.g. B. with the usual polymethine dyes such as neutrocyanines, basic or acid carbocyanines, rhodacyanines, hemicyanines, styryl dyes, oxonols and the like.
  • polymethine dyes such as neutrocyanines, basic or acid carbocyanines, rhodacyanines, hemicyanines, styryl dyes, oxonols and the like.
  • Such sensitizers are from F.M. Hamer in "The Cyanine Dyes and Related Compounds", (1964).
  • the spectral sensitization can take place at any time during the preparation of the emulsion, i.e. during or after silver halide precipitation and before, during or after chemical sensitization.
  • the commonly used antifoggants and stabilizers can be used.
  • Particularly suitable stabilizers are azaindenes, preferably tetra- or penta-azaindenes, in particular those which are substituted by hydroxyl or amino groups. Such connections are e.g. B. in the article by Birr, Z. Wiss. Phot. 47, 1952), pp. 2-58. Other suitable stabilizers and anti-fogging agents are given in Research Disclosure No. 17643 above in Section IV.
  • the recording material preferably contains DIR compounds. These can be present in a silver halide emulsion layer or in a layer assigned to it.
  • the inhibitory substances released from the DIR compounds are preferably mercapto compounds, e.g. B. 1-phenyl-5-mercaptotetrazole.
  • the inhibitory substances are released immediately by reaction of the DIR compound with the developer oxidation product.
  • the inhibitory substances are only released indirectly after they have been split off from a delay group.
  • hydrocarbyl group is an aliphatic or aromatic hydrocarbon group, e.g. B. to understand an optionally substituted alkyl or aryl radical.
  • Examples of aliphatic hydrocarbon radicals for which R 1 and R 2 can stand are alkyl groups with 1 to 18 carbon atoms, which can be straight-chain, branched or cyclic and optionally substituted by alkoxy, aroxy, aryl, halogen, carboxy or sulfo groups, such as Methyl, isopropyl, tert-butyl, dodecyl, heptadecyl, benzyl, phenylethyl, carboxy-tert-butyl and methoxypropyl.
  • DIR compounds are also known from DE-OS-2,853,362 and US Pat. Nos. 3,227,554 and 4,315,070. Particularly preferred DIR compounds of this type are given in Table 2 below.
  • a particularly striking increase in the edge effect occurs when DIR compounds are used if the silver halide emulsion assigned to the DIR compounds contains stabilizers, sensitizing dyes or other substances which can be adsorbed on the silver halide; Sulfur-containing heterocycles with an N atom in the ring system are particularly suitable for this purpose.
  • the recording material according to the invention is preferably a color photographic recording material.
  • the color image is generated using color couplers. It is possible to let the color coupler diffuse into the recording material only during development.
  • the photographic material itself contains the usual ones Color couplers that can react with the oxidation product of developers, generally p-phenylenediamines, to form dyes.
  • the red-sensitive layer can contain a non-diffusing color coupler for producing the blue-green partial color image, usually a coupler of the phenol or a-naphthol type.
  • the green-sensitive layer can contain, for example, at least one non-diffusing color coupler for producing the purple partial color image, color couplers of the 5-pyrazolone type usually being used.
  • the blue-sensitive layer can contain, for example, a non-diffusing color coupler for generating the yellow partial color image, usually a color coupler with an open-chain ketomethylene grouping.
  • the color couplers it can be, for. B. are 6-, 4- and 2-equivalent couplers, including the so-called white couplers.
  • Couplers which do not produce any dye when reacted with color developer oxidation products.
  • Suitable couplers are known, for example, from the publications “Color Coupler” by W. Pelz in “Messages from the Research Laboratories of Agfa, Leverkusen / Kunststoff", Volume 111, page 111 (1961, K. Venkataraman in “The Chemistry of Synthetic Dyes", Vol . 4, 341 to 387, Academic Press (1971) and TH James, “The Theory of the Photographic Process", 4th Ed., Pp. 353-362, and from Research Disclosure No. 17643 of December 1978, Section VII .
  • the color couplers and DIR compounds can be incorporated into the materials according to the invention by customary, known methods. If the compounds are soluble in water or alkali, they can be added in the form of aqueous solutions, optionally with the addition of water-miscible organic solvents such as ethanol, acetone or dimethylformamide. If the color couplers and DIR compounds are insoluble in water or alkali, they can be incorporated into the recording materials in a known manner in dispersed form. For example, a solution of these compounds in a low-boiling organic solvent can be mixed directly with the silver halide emulsion or initially with an aqueous gelatin solution and the organic solvent can then be removed.
  • a solution of these compounds in a low-boiling organic solvent can be mixed directly with the silver halide emulsion or initially with an aqueous gelatin solution and the organic solvent can then be removed.
  • the dispersion of the respective compound thus obtained can then be mixed with the silver halide emulsion.
  • so-called oil formers are also used, usually higher-boiling organic compounds, which include the color couplers and DIR compounds to be dispersed in the form of oily droplets.
  • oil formers usually higher-boiling organic compounds, which include the color couplers and DIR compounds to be dispersed in the form of oily droplets.
  • the recording materials according to the invention preferably contain at least one silver halide emulsion layer unit for recording blue, green and red light.
  • the red-sensitive silver halide emulsion layer unit is usually arranged closer to the layer support than the green-sensitive silver halide emulsion layer unit and this in turn is closer than the blue-sensitive one.
  • at least one of the units for recording green, red and blue light consists of at least two sub-layers.
  • the usual substrates can be used for the materials according to the invention, e.g. B. carriers made of cellulose esters, for. B. cellulose acetate and polyester. Also suitable are paper supports, which can optionally be coated, for. B. with polyolefins, especially with polyethylene or polypropylene.
  • B. carriers made of cellulose esters, for. B. cellulose acetate and polyester.
  • paper supports which can optionally be coated, for. B. with polyolefins, especially with polyethylene or polypropylene.
  • polyolefins especially with polyethylene or polypropylene.
  • hydrophilic film-forming agents are suitable as protective colloid or binder for the layers of the recording material, e.g. B. proteins, especially gelatin, alginic acid or their derivatives such as esters, amides or salts, cellulose derivatives such as carboxymethyl cellulose and cellulose sulfates, starch or their derivatives or hydrophilic synthetic binders such as polyvinyl alcohol, partially saponified polyvinyl acetate, polyvinyl pyrrolidone and others.
  • B. proteins especially gelatin, alginic acid or their derivatives such as esters, amides or salts, cellulose derivatives such as carboxymethyl cellulose and cellulose sulfates, starch or their derivatives or hydrophilic synthetic binders such as polyvinyl alcohol, partially saponified polyvinyl acetate, polyvinyl pyrrolidone and others.
  • the layers can also contain other synthetic binders in dissolved or dispersed form, such as homopolymers or copolymers of acrylic or methacrylic acid or their derivatives, such as esters, amides or nitriles, and also vinyl polymers, such as vinyl esters or vinyl ethers.
  • binders specified in Research Disclosure 17643 above in Section IX.
  • the layers of the photographic material can be hardened in the usual manner, for example with hardeners of the epoxy type, the heterocyclic ethylene imine and the acryloyl type. Furthermore, it is also possible to harden the layers in accordance with the process of German laid-open specification 2 218 009 in order to obtain color photographic materials which are suitable for high-temperature processing. It is also possible that the photographic layers or color photographic nehr Anlagenenmaterialien with hardeners of the diazine -, triazine or 1,2-dihydroquinoline series to cure or hardeners of the vinylsulfone type. Further suitable hardening agents are known from German laid-open documents 2 439 551, 2 225 230, 2 317 672 and from Research Disclosure 17643, section XI given above.
  • the photographic materials according to the invention may also contain other substances, in particular plasticizers, wetting agents, screen dyes, light scattering agents, light reflecting agents, lubricants, antistatic agents, matting agents, etc.
  • plasticizers in particular plasticizers, wetting agents, screen dyes, light scattering agents, light reflecting agents, lubricants, antistatic agents, matting agents, etc.
  • Suitable color developer substances for the material according to the invention are in particular those of the p-phenylene-diamond type, e.g. B. 4-amino-N, N-diethyl-aniline hydrochloride; 4-amino-3-methyl-N-ethyl-N-ß- (methanesulfonamido) ethylaniline sulfate hydrate; 4-amino-3-methyl-N-ethyl-N- ⁇ -hydroxyethylaniline sulfate; 4-amino-N-ethyl-N- (2-methoxyethyl) -m-toluidine-di-p-toluenesulfonic acid and N-ethyl-N-ß-hydroxyethyl-p-phenylenediamine.
  • Other useful color developers are described, for example, in J. Amer. Chem. Soc. 73, 3100 (1951) and in G. Haist, Modern Photographi
  • the material is usually bleached and fixed. Bleaching and fixing can be carried out separately or together.
  • the usual compounds can be used as bleaching agents, e.g. B. Fe 3 + salts and Fe 3 + complex salts such as ferricyanides, dichromates, water-soluble cobalt complexes, etc.
  • Particularly preferred are iron III complexes of aminopolycarboxylic acids, especially z.
  • Persulphates are also suitable as bleaching agents.
  • Emulsion A (comparison emulsion)
  • a silver chloride bromide iodide emulsion was prepared which contained 5 mol% chloride, 92 mol% bromide and 3 mol% iodide. If one assigns a sphere with the volume of the crystal to each crystal, the most common value of the sphere diameter was 0.23 ⁇ m, 90% of the sphere diameter was larger than 0.17 ⁇ m and 90% of the sphere diameter was smaller than 0.45 ⁇ m.
  • the habit of the crystals obtained was plate-like to isometric, the boundary surfaces were partly octahedral surfaces and partly curved surfaces.
  • Emulsion B (homodisperse comparison emulsion)
  • a silver bromide iodide emulsion containing 99.1 mole% bromide and 0.9 mole% iodide was prepared by the double run-in process.
  • the emulsion was therefore made up of 3 zones (Table 3), the difference in iodide content not reaching 6%:
  • Emulsion C (invention)
  • a three-zone silver bromide iodide emulsion containing 95.05 mole% bromide and 4.95 mole% iodide was prepared by the double run-in process.
  • the emulsion was chemically ripened at 56 ° C. with 32 ⁇ mol Na 2 S 2 O 3 .5H 2 O / mol Ag, 10.2 ⁇ mol HAuCl 4 / mol Ag and 610 ⁇ mol KSCN / mol Ag and then with 400 ⁇ mol of that in the example B used sensitizing dye per mole Ag spectrally sensitized.
  • the emulsion was therefore composed of 3 zones (Table 4), zone 2 having more than 6% more iodide than the adjacent zones.
  • Emulsion D (invention)
  • the cube-shaped silver halide crystals had an edge length of 0.5 ⁇ m and were at 56 ° C with 24 ⁇ mol Na 2 S 2 0 3 - 5H 2 O / mol Ag, 7.3 ⁇ mol HAuC1 4 / mol Ag and 435 ⁇ mol KSCN / mol Ag chemically ripened for three hours and then spectrally sensitized with 400 ⁇ mol of the sensitizing dye specified in Example B per mol of Ag.
  • Emulsion E (invention)
  • Emulsion F (invention)
  • This emulsion which contains a total of 12.5 mol% Agl and has an average grain diameter of 0.16 ⁇ , has the amount of a very fine-grained Ag (Br, CI, I) emulsion (average grain diameter 0.1 ⁇ ) with 0 , 4 mol% Agl and 2 mol% AgCI mixed, which contains an amount of silver corresponding to 500 g AgN0 3 and has a gelatin concentration of 27 g / kg.
  • the emulsion mixture thus obtained is subjected to Ostwald ripening in the presence of 75 g of imidazole at 65 ° C., pH 7.0 and pAg 7.8.
  • Emulsion G (invention)
  • the emulsion is prepared as described in Example F. Only the composition of the halide mixture in one solution of the double inlet changes to 477 g ammonium bromide and 97 9 potassium iodide. The potassium iodide solution added after the double inlet contains 28 g of potassium iodide.
  • the emulsion obtained after Ostwald ripening has an average grain diameter of approx. 0.5 ⁇ .
  • the spectral sensitization was carried out as for emulsion F.
  • each of the above-mentioned emulsions A to E which contained 200 g of AgNO 3 equivalent amount of silver halide and 70 g of gelatin per kg, were each mixed with 50 ml of a 1% aqueous solution of 4-hydroxy-6- methyl-1,3,3a-7-tetraazaindene stabilized and mixed with a color coupler emulsifier consisting of 25 g of the color coupler of the following formula: 25 g tricresyl phosphate and 25 g gelatin.
  • the DIR compound was emulsified together with tricresyl phosphate and gelatin in a weight ratio of 1: 1.
  • the casting solutions obtained in this way were poured onto a layer support (silver application: 3.0 g per m 2 ) and cured.
  • the magnitude of the edge effects was determined on the four layer structures 2A, 2B, 2F and 2G exemplified here, as explained in Example 1.
  • the measured values obtained with the macro density 1.0 (via fog) are entered in Table 7.
  • the sharpness of the materials 2A, 2B, 2F and 2G was determined using the modulation transfer function (MTF).
  • MTF modulation transfer function
  • Table 8 shows the spatial frequencies (in lines per mm) at which the MTF has a value of 50%. From the higher MTF values in the emulsions according to the invention it can be seen that these deliver a higher image sharpness.
  • Table 7 shows the "purple interimage effect" by what percentage the purple gradation is greater with green exposure than with white exposure (cyan IIE analog).
  • the materials specified in this example are processed when determining the edge effect, the MTF and the interimage effect using the same color negative method as for

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
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  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP85100911A 1984-02-11 1985-01-30 Fotografisches Aufzeichnungsmaterial Expired EP0152822B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3404854 1984-02-11
DE19843404854 DE3404854A1 (de) 1984-02-11 1984-02-11 Fotografisches aufzeichnungsmaterial

Publications (3)

Publication Number Publication Date
EP0152822A2 EP0152822A2 (de) 1985-08-28
EP0152822A3 EP0152822A3 (en) 1988-01-27
EP0152822B1 true EP0152822B1 (de) 1989-05-31

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EP85100911A Expired EP0152822B1 (de) 1984-02-11 1985-01-30 Fotografisches Aufzeichnungsmaterial

Country Status (4)

Country Link
US (1) US4636461A (enrdf_load_stackoverflow)
EP (1) EP0152822B1 (enrdf_load_stackoverflow)
JP (1) JPS60258536A (enrdf_load_stackoverflow)
DE (2) DE3404854A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723431A1 (de) * 1986-07-16 1988-01-28 Forte Fotokemiai Ipar Verfahren zur herstellung einer warmen farbton gebenden fotografischen emulsion
DE3723419A1 (de) * 1986-07-16 1988-02-18 Forte Fotokemiai Ipar Verfahren zur herstellung einer homodispersen fotografischen emulsion

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JPS61245151A (ja) * 1985-04-23 1986-10-31 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JPS61250645A (ja) * 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JPS6219843A (ja) * 1985-07-19 1987-01-28 Fuji Photo Film Co Ltd ハロゲン化銀カラ−反転写真感光材料
JPS62123445A (ja) * 1985-08-26 1987-06-04 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JP2603066B2 (ja) * 1986-01-20 1997-04-23 コニカ株式会社 ハロゲン化銀写真感光材料
DE3605712A1 (de) * 1986-02-22 1987-08-27 Agfa Gevaert Ag Fotografisches aufzeichnungsmaterial und verfahren zur herstellung fotografischer bilder
DE3618141A1 (de) * 1986-05-30 1987-12-03 Agfa Gevaert Ag Durch waermebehandlung entwickelbares farbfotografisches aufzeichnungsmaterial
JPH02943A (ja) * 1988-02-26 1990-01-05 Konica Corp ハロゲン化銀写真感光材料
DE3819469A1 (de) * 1988-06-08 1989-12-14 Agfa Gevaert Ag Fotografisches aufzeichnungsmaterial
CA2029579A1 (en) * 1989-12-13 1991-06-14 Elizabeth P. Chang Photographic silver bromoiodide emulsions, elements and processes
JPH04313748A (ja) * 1991-01-23 1992-11-05 Konica Corp 撮影ユニット
JPH0545758A (ja) * 1991-08-20 1993-02-26 Konica Corp ハロゲン化銀写真感光材料
JP2767341B2 (ja) * 1992-04-30 1998-06-18 富士写真フイルム株式会社 銀塩拡散転写法用感光要素
EP0574090A1 (en) 1992-06-12 1993-12-15 Eastman Kodak Company One equivalent couplers and low pKa release dyes
JP3155102B2 (ja) * 1992-12-03 2001-04-09 コニカ株式会社 ハロゲン化銀写真乳剤
EP0662632B1 (en) * 1994-01-11 2004-04-07 Fuji Photo Film Co., Ltd. Silver halide light-sensitive emulsion and silver halide light-sensitive material
DE19626696C1 (de) * 1996-07-03 1997-08-28 Agfa Gevaert Ag Verfahren zur Herstellung von Silberhalogenidemulsionen
US6120984A (en) * 1998-06-17 2000-09-19 Eastman Kodak Company Solid electrolyte particles comprising MAg4 I5
EP1055964B1 (en) * 1999-05-25 2006-11-02 Ferrania Technologies S.p.A. Silver bromoiodide core-shell grain emulsion

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BE636801A (enrdf_load_stackoverflow) * 1962-09-01
US4045228A (en) * 1972-12-08 1977-08-30 Agfa-Gevaert N.V. Direct positive emulsions containing fogged, monodispersed silver halide grains having more than 10 mile % iodide
DE2308239C2 (de) * 1973-02-20 1984-09-13 Agfa-Gevaert Ag, 5090 Leverkusen Direktpositives photographisches Aufzeichnungsmaterial
DE2828112A1 (de) * 1978-06-27 1980-01-10 Agfa Gevaert Ag Lichtempfindliches photographisches material
US4477564A (en) * 1982-04-01 1984-10-16 Minnesota Mining And Manufacturing Company Photographic silver halide emulsions, process for preparing the same and their use in color reversal films
DE3229999A1 (de) * 1982-08-12 1984-02-16 Agfa-Gevaert Ag, 5090 Leverkusen Fotografische silberhalogenidemulsion
JPS5948755A (ja) * 1982-09-13 1984-03-21 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真乳剤
US4504570A (en) * 1982-09-30 1985-03-12 Eastman Kodak Company Direct reversal emulsions and photographic elements useful in image transfer film units
JPS6035726A (ja) * 1983-08-08 1985-02-23 Fuji Photo Film Co Ltd ハロゲン化銀乳剤

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723431A1 (de) * 1986-07-16 1988-01-28 Forte Fotokemiai Ipar Verfahren zur herstellung einer warmen farbton gebenden fotografischen emulsion
DE3723419A1 (de) * 1986-07-16 1988-02-18 Forte Fotokemiai Ipar Verfahren zur herstellung einer homodispersen fotografischen emulsion

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JPH058813B2 (enrdf_load_stackoverflow) 1993-02-03
EP0152822A2 (de) 1985-08-28
US4636461A (en) 1987-01-13
DE3570774D1 (en) 1989-07-06
EP0152822A3 (en) 1988-01-27
DE3404854A1 (de) 1985-08-14
JPS60258536A (ja) 1985-12-20

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