EP0002759B1 - Lichtempfindliches photographisches Material, Verfahren zu dessen Herstellung und dessen Verwendung - Google Patents

Lichtempfindliches photographisches Material, Verfahren zu dessen Herstellung und dessen Verwendung Download PDF

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Publication number
EP0002759B1
EP0002759B1 EP78101730A EP78101730A EP0002759B1 EP 0002759 B1 EP0002759 B1 EP 0002759B1 EP 78101730 A EP78101730 A EP 78101730A EP 78101730 A EP78101730 A EP 78101730A EP 0002759 B1 EP0002759 B1 EP 0002759B1
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EP
European Patent Office
Prior art keywords
silver halide
emulsion
radical
imidazole
precipitation
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
EP78101730A
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German (de)
English (en)
French (fr)
Other versions
EP0002759A2 (de
EP0002759A3 (en
Inventor
Manfred Dr. Becker
Angela Slabik
Bruno Dr. Mücke
Erik Dr. Moisar
Harald Dr. Von Rintelen
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Agfa Gevaert AG
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Agfa Gevaert AG
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Filing date
Publication date
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of EP0002759A2 publication Critical patent/EP0002759A2/de
Publication of EP0002759A3 publication Critical patent/EP0002759A3/xx
Application granted granted Critical
Publication of EP0002759B1 publication Critical patent/EP0002759B1/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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/07—Substances influencing grain growth during silver salt formation
    • 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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances

Definitions

  • the invention relates to a photographic material with at least one light-sensitive silver halide emulsion layer, the silver halide grains of which have been precipitated in the presence of imidazole and / or imidazole derivatives; the invention further relates to a method for the production of such photographic materials and their use for the production of photographic images.
  • the need to continue to grow only a part of the silver halide nuclei formed arises from the fact that in general the number of silver halide nuclei formed is far greater than the number of silver halide crystals which are to be produced with the given amount of starting materials. In general, silver halide crystals which are too small and therefore insensitive would be obtained if all of the silver halide nuclei formed were allowed to continue growing with a predetermined amount of starting materials.
  • the number of silver halide nuclei initially formed is reduced in such a way that a silver halide emulsion is precipitated, a small part is separated from this precipitation, this is dispersed in gelatin solution and then further silver halide is grown on this part by means of a double inlet until the crystals have the desired size.
  • This method is described, for example, in German Offenlegungsschrift 2 107 118 and in British Patent 1 170 648.
  • a known variant of the last-mentioned process consists in separating a small part from an emulsion precipitation, dispersing it in gelatin solution, adding a finer grain emulsion (grain diameter ⁇ 0.3 ⁇ m) and stirring the mixture in the presence of excess halide ions at elevated temperature, until the finer-grained emulsion has dissolved and its silver halide has grown on the silver halide crystals.
  • the object is therefore to find a photographic material which avoids the disadvantages of known materials.
  • Another object is to provide an improved process for the production of such materials, in which in particular only as many silver halide nuclei are produced from the outset as are required, so that measures to subsequently reduce their number are not necessary.
  • these substituents may form a multivalent ligand for silver ions, such as the particularly suitable 1-allylimidazole.
  • Preferred alkyl groups have 1 to 8 carbon atoms, especially 1 to 4 carbon atoms, such as methyl and ethyl.
  • Alkenyl radicals can be those with 3 to 8 carbon atoms. for example allyl, butenyl, hexenyl or octenyl. Alkenyl radicals having 3 to 4 carbon atoms are preferred; the allyl radical is particularly preferred.
  • Aryl substituents can be those having 6 to 12 carbon atoms, for example phenyl, biphenyl or naphthyl.
  • the preferred aryl substituent is the phenyl radical.
  • Araliphatic substituents can be those having 1 to 2 carbon atoms in the aliphatic part and 6 to 12 carbon atoms in the aromatic part, for example benzyl and phenylethyl.
  • Suitable substituted alkyl groups are hydroxyl, cyano, alkoxy, free or esterified carboxy and / or sulfoalkyl groups.
  • the substances to be used according to the invention are water-soluble. Examples of particularly suitable compounds are given in Table 1 below.
  • substituents are, for example, HS-, thioether-containing groups (for example CH 3 -S-CH 2 -) and heterocyclic groups such as.
  • the materials according to the invention are outstandingly suitable for producing photographic images by imagewise exposure, development and customary further processing.
  • the protective colloid in particular the gelatin
  • the protective colloid can be present not only in the initial charge, but also in the incoming halide solution.
  • the compounds to be used according to the invention can be used in a very wide concentration range.
  • concentration to be used depends on the desired final size of the silver halide crystals and can range from 10- 4 molar solution to the saturation limit of the compound. They are preferably used in 0.003 molar to 1 molar solution.
  • the pH in the precipitation medium is generally> 5, preferably pH values between 5.5 and 6.5 are selected, but precipitation in alkaline solution is also possible.
  • the pH in the precipitation medium can also be changed during the precipitation. In particular, you can make 5, and then continue to grow lberhalogenidkristallen i at pH ⁇ 5 into larger S let the silver halide at pH>.
  • the usual silver halide emulsions are suitable for the present invention. These can contain silver chloride, silver bromide or silver iodide as the silver halide.
  • the emulsions can be negative emulsions or direct positive emulsions.
  • the grains of the emulsions can have ripening nuclei both inside and outside or have a layered grain structure.
  • the material according to the invention can be used for the so-called silver color bleaching process. Furthermore, the present invention is also suitable for the color instant image process or color transfer process. In these processes, the dyes for the partial color images diffuse into an image-receiving layer, where they are firmly anchored, or the color couplers diffuse into the image-receiving layer, where they are converted into the image dye according to customary color development.
  • the light-sensitive material generally contains three light-sensitive emulsion layers, each of these layers being assigned a coloring system.
  • Coloring system is understood to mean a compound embedded in the respective layer in a diffusion-resistant manner, which is a dye or a dye precursor and which, during development in the presence of the alkaline processing composition, releases dyes which diffuse, preferably contain acid groups, from photographic developers under the action of imagewise resulting oxidation products.
  • Various chemical compounds are available for this.
  • Diffusion-resistant coloring substances according to US Pat. No. 3,628,952 for example, are particularly suitable. These compounds split off diffusible dyes during the reaction with oxidation products from black and white or color developers. Another useful class of compounds is described in German Patent 1,095,115.
  • the compounds mentioned here give diffusible dyes, which generally belong to the class of azomethine dyes, in the reaction with oxidized color developer.
  • a widely useful coloring system is described in U.S. Patent Nos. 3,443,939 and 3,443,940. In this system, diffusible dyes are split off under the action of oxidized developer substances with the formation of a ring.
  • the desired gradation can already be obtained with one of the emulsions according to the invention or by mixing several of these emulsions of different sensitivity.
  • the emulsions according to the invention can be used for a photographic recording material on a white reflective substrate for the production of color image images.
  • Such materials can e.g. B. can be constructed from 3 light-sensitive layers, of which the red-sensitive one, which contains the coupler capable of forming cyan dye, is arranged furthest away from the layer support. Under the red-sensitive layer there can be a UV-absorbing intermediate layer, then a green-sensitive layer with the coupler capable of forming a purple dye and below this layer, separated by an intermediate layer, the blue-sensitive layer with the coupler capable of forming a yellow dye.
  • Such materials can also contain substances for stabilizing the image whiteness, such as. B. n-octyl hydroquinone, 2-ethylhexyl hydroquinone and 2,5-bis (1 ', 1', 3 ', 3'-tetramethyl) butyl hydroquinone.
  • These substances can be emulsified and in a wide range, e.g. B. from 1 to 100 mg, in particular from 10 to 50 mg / m 2 , are used.
  • UV absorbers may also be present.
  • the photographic material produced according to the invention can contain the usual color couplers, which are usually incorporated into the silver halide layers themselves.
  • 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 at least one non-diffusing color coupler for producing the purple partial color image, color couplers of the 5-pyrazolone or indazolone type usually being used.
  • the blue-sensitive layer unit can contain at least one non-diffusing color coupler for producing the yellow partial color image, usually a color coupler with an open-chain ketomethylene grouping.
  • Color couplers of this type are known in large numbers and are described in a large number of patents. Examples include the publication "Color Coupler” by W. Pelz in “Messages from the Research Laboratories of Agfa, Leverkusen / Kunststoff", Volume 111 (1961) and K. Venkataraman in “The Chemistry of Synthetic Dyes", Vol. 4, 341 to 387, Academic Press, 1971.
  • 2-equivalent couplers can be used as further non-diffusing color couplers; these contain a removable substituent in the coupling point, so that they only require two equivalents of silver halide to form the color, in contrast to the usual 4-equivalent couplers.
  • the 2-equivalent couplers that can be used include, for example, the known DIR couplers in which the cleavable residue is released as a diffusing development inhibitor after reaction with color developer oxidation products.
  • the so-called white couplers can also be used to improve the properties of the photographic material.
  • the non-diffusing color couplers and coloring compounds are added to the light-sensitive silver halide emulsions or other casting solutions by customary known methods. If the compounds are soluble in water or alkali, they can be added to the emulsions in the form of aqueous solutions, optionally with the addition of water-miscible organic solvents such as ethanol, acetone or dimethylformamide. As far as the non-diffusing color couplers and coloring compounds are water- or alkali-insoluble compounds, they can be emulsified in a known manner, e.g. B.
  • Gelatin is preferably used as the binder for the photographic layers. However, this can be replaced in whole or in part by other natural or synthetic binders. On natural binders such. B. alginic acid and its derivatives such as salts, esters or amides, cellulose derivatives such as carboxymethyl cellulose, alkyl cellulose such as hydroxyethyl cellulose, starch or their derivatives such as ether or ester or carragheenate. Synthetic binders include polyvinyl alcohol, partially saponified polyvinyl acetate, polyvinyl pyrrolidone and the like.
  • the emulsions can also be chemically sensitized, e.g. B. by adding sulfur-containing compounds during chemical ripening, for example allyl isothiocyanate, allyl thiourea, sodium thiosulfate and the like.
  • Reducing agents e.g. B. the tin compounds described in Belgian patents 493 464 or 568 687, and also polyamines such as diethylenetriamine or aminomethylsulfinic acid derivatives, e.g. B. according to Belgian patent 547 323, can be used.
  • Precious metals or noble metal compounds such as gold, platinum, palladium, iridium, ruthenium or rhodium are also suitable as chemical sensitizers. This method of chemical sensitization is described in the article by R. Koslowsky, Z. Wiss. Phot. 46, 65 to 72 (1951).
  • polyalkylene oxide derivatives e.g. B. with polyethylene oxide having a molecular weight between 1000 and 20,000, also with condensation products of alkylene oxides and aliphatic alcohols, glycols, cyclic dehydration products of hexitols, with alkyl-substituted phenols, aliphatic carboxylic acids, aliphatic amines, aliphatic diamines and amides.
  • the condensation products have a molecular weight of at least 700, preferably more than 1000.
  • these sensitizers can of course be used in combination, as described in Belgian patent 537 278 and British patent 727 982.
  • the emulsions can also be optically sensitized, e.g. B. with the usual polymethine dyes such as neutrocyanines, basic or acidic carbocyanines, rhodacyanines, hemicyanines, styryl dyes, oxonols and the like.
  • polymethine dyes such as neutrocyanines, basic or acidic carbocyanines, rhodacyanines, hemicyanines, styryl dyes, oxonols and the like.
  • Such sensitizers are described in the work of F. M. Hamer "The Cyanine Dyes and related Compounds", 1964, Interscience Publishers, John Wiley and Sons.
  • the emulsions can contain the usual stabilizers, such as. B. homeopolar or salt-like compounds of mercury with aromatic or heterocyclic rings such as mercaptotriazoles, simple mercury salts, sulfonium mercury double salts and other mercury compounds.
  • stabilizers are azaindenes, preferably tetra- or penta-azaindenes, in particular those which are substituted by hydroxyl or amino groups. Such connections are described in the article by Birr, Z. Wiss. Phot. 47 (1952), 2 to 58.
  • Other suitable stabilizers are u. a. heterocyclic mercapto compounds, e.g. B. phenyl mercaptotetrazole, quaternary benzothiazole derivatives, benzotriazole and the like.
  • the emulsions can be hardened in the usual manner, for example with formaldehyde or halogen-substituted aldehydes which contain a carboxyl group such as mucobromic acid, diketones, methanesulfonic acid esters, dialdehydes and the like.
  • the photographic layers can be hardened with hardeners of the epoxy type, the heterocyclic ethylene imine or the acryloyl type.
  • hardeners are e.g. B. described in German Offenlegungsschrift 2,263,602 or in British Patent 1,266,655.
  • hardeners of the diazine, triazine or 1,2-dihydroquinoline series are alkyl or arylsulfonyl group-containing diazine derivatives, derivatives of hydrogenated diazines or triazines, such as. B. 1,3,5-hexahydrotriazine, fluorine-substituted diazine derivatives, such as. B.
  • fluoropyrimidine esters of 2-substituted 1,2-dihydroquinoline or 1,2-dihydroisoquinoline-N-carboxylic acids.
  • vinyl sulfonic acid hardeners carbodiimide or carbamoyl hardeners, such as. B. in German laid-open publications 2 263 602, 2 225 230 and 1 808 685, French patent 1491807, German patent 872 153 and GDR patent 7218.
  • Other useful hardeners are described, for example, in British Patent 1,268,550.
  • the emulsions A to E listed in Table 2 are obtained.
  • the diameter of the octahedral silver halide grains in all emulsions according to the invention is larger than that of the comparison emulsion without imidazole. With an increasing amount of imidazole, the grain diameter increases without anything having to be changed in the other precipitation conditions. Neither a division of an emulsion precipitation nor a physical ripening to enlarge the grain is necessary.
  • the emulsion grains can be chemically ripened by methods known per se.
  • chemical ripening it is known to note that the longer the ripening time or the lower the ripening temperature, the larger the emulsion grains are if practically usable emulsions are to be obtained.
  • Emulsion A is a comparison emulsion, in the preparation of which no imidazole or imidazole derivative was contained in the template. Emulsions with octahedral emulsion grains are obtained in each case.
  • Silver halide cubes with a diameter of 1.7 ⁇ m (edge length 1.0 ⁇ m) are obtained.
  • emulsion O To prepare the emulsion O, the procedure is as indicated under emulsion N, with the modification that the template contains no imidazole. Tetradecahedra with a diameter of 0.50 ⁇ m are obtained.
  • Example 3 shows that emulsions with cube-shaped crystals can be prepared with the aid of the compounds to be used according to the invention.
  • emulsion P To prepare the emulsion P given below, the procedure described under emulsion N is followed with the modification that the pH of the initial charge is adjusted to 7.6. A heterodisperse emulsion is obtained, the crystals of which are cube-shaped and have a diameter of 1.4 to 3.3 ⁇ m.
  • Emulsion Q is prepared as indicated under Emulsion P with the modification that no imidazole is contained in the template. Tetradecahedra with a diameter of 0.55 ⁇ m are obtained.
  • Emulsion R To prepare the emulsion R, the procedure described under Emulsion D is first used. Subsequent to the pAG-controlled double inlet described under Emulsion D of 400 ml of 2 molar silver nitrate solution and the corresponding amount of 2 molar potassium bromide solution, the emulsion obtained is heated to 70 ° C. with 4.73 ml of a solution of 0.1 g of sodium dithiosulfato aurate (1) -2 water was added to 100 ml of water, held at 70 ° C for 45 minutes and then cooled to 63 ° C.
  • Silver bromide is struck on the chemically ripened emulsion grains by adding 1000 ml of 2 molar silver nitrate solution and the amount of 2 molar potassium bromide solution required to keep the pAg constant to the emulsion at pAg9.6 using a pAg-controlled double inlet, the flow rate of the silver nitrate solution being 330 ml per hour.
  • the emulsion is then cooled as usual, flocculated, washed and then redispersed in a solution of 195 g of gelatin in 1350 ml of water.
  • the silver halide crystals of the emulsion form octahedra 1.8 ⁇ m in diameter.
  • emulsion R1, R2 and R3 as defined in Example 1 is measured at the blackening, which is 0.9 times the maximum blackening.
  • emulsion R gives a light-sensitive photographic material which gives positive images.
  • the grain size and thus the sensitivity can be varied again by varying the concentration of the imidazole (or its derivatives), but in the case of the direct positive emulsions according to the type of Example 5, the inner and outer ripening must be carefully matched to the grain size. It therefore makes little sense to vary the grain size under constant ripening conditions if usable direct positive emulsions are to be obtained each time.
  • the material with the emulsion A3 corresponds to that described in Example 1.
  • the emulsion is cooled as usual, flocculated, washed and finally redispersed in a solution of 110 9 gelatin in 860 ml water.
  • the silver halide crystals of the emulsion represent distorted octahedra with a diameter of 1.3 to 2.0 ⁇ m.
  • 1/10 of the emulsion thus prepared is mixed with 68 ml of a 0.001 molar methanolic solution of the spectral sensitizer indicated in Example 1 and poured onto a 0.18 mm thick substrate made of cellulose acetate.
  • the silver coating is 3.3 g.
  • Strips of the light-sensitive material thus obtained are placed in a sensitometer behind a - Exposed wedge for 1/20 seconds.
  • the exposed strips are developed at 20 ° C for 13 minutes in the developer given in Example 5. It is then fixed, watered and dried as usual.
  • the sensitivity of the emulsion S is measured at the density, which is 0.9 times the maximum density. As can be seen from Table 5, emulsion S gives a light-sensitive photographic material which provides positive images.
  • the grain size and thus the sensitivity vary, but in the case of the direct positive emulsions according to the type of Example 6 the ratio must be matched to the grain size. It therefore makes little sense to vary the grain size with a constant percentage composition of the emulsion grains if usable direct positive emulsions are to be obtained each time.
  • the material with the emulsion A3 corresponds to that given in Example 1.
  • the sensitivity is defined as indicated in Example 1.
  • a strip of the light-sensitive material thus produced is placed behind a in a sensitometer - Exposed wedge for 1/5 sec.
  • the exposed strip is then developed for 7 minutes with an alkaline development paste, which was applied in a thickness of 0.180 mm and has the following composition:
  • the light-sensitive strip has spacing strips laterally along the longitudinal edges which, together with the light-sensitive strip and a cover sheet, form a cavity which is filled in by the developer paste.
  • the developer paste is initially in a splitable container at one end of the cavity and is distributed into the cavity by passing the entire assembly through a pair of nip rollers. After the development is stopped, watered and dried as usual.
  • a purple-colored positive image is obtained, the maximum color density of which is 1.90 and the minimum color density of which is 0.23.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP78101730A 1977-12-29 1978-12-16 Lichtempfindliches photographisches Material, Verfahren zu dessen Herstellung und dessen Verwendung Expired EP0002759B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772758711 DE2758711A1 (de) 1977-12-29 1977-12-29 Lichtempfindliches photographisches material
DE2758711 1977-12-29

Publications (3)

Publication Number Publication Date
EP0002759A2 EP0002759A2 (de) 1979-07-11
EP0002759A3 EP0002759A3 (en) 1979-07-25
EP0002759B1 true EP0002759B1 (de) 1981-04-29

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EP78101730A Expired EP0002759B1 (de) 1977-12-29 1978-12-16 Lichtempfindliches photographisches Material, Verfahren zu dessen Herstellung und dessen Verwendung

Country Status (5)

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US (1) US4298683A (enrdf_load_stackoverflow)
EP (1) EP0002759B1 (enrdf_load_stackoverflow)
JP (1) JPS54100717A (enrdf_load_stackoverflow)
CA (1) CA1146793A (enrdf_load_stackoverflow)
DE (2) DE2758711A1 (enrdf_load_stackoverflow)

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Publication number Priority date Publication date Assignee Title
DE3019733A1 (de) * 1980-05-23 1981-12-03 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur herstellung von silberhalogenidemulsionen, photographische materialien sowie verfahren zur herstellung photographischer bilder
JPS5849938A (ja) * 1981-08-07 1983-03-24 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真乳剤の製造方法
JPS58126526A (ja) * 1981-12-19 1983-07-28 Konishiroku Photo Ind Co Ltd ハロゲン化銀乳剤の製造方法およびハロゲン化銀写真感光材料
JPS59116647A (ja) 1982-12-13 1984-07-05 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JPS59188641A (ja) 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd ハロゲン化銀写真乳剤
WO1986004694A1 (en) 1985-02-06 1986-08-14 Fuji Photo Film Co., Ltd. Silver halide photographic photo-sensitive material
DE3507830A1 (de) * 1985-03-06 1986-09-11 Agfa-Gevaert Ag, 5090 Leverkusen Farbfotografisches aufzeichnungsmaterial mit einer silberhalogenidemulsion und verfahren zu deren herstellung
DE3672406D1 (de) * 1985-07-04 1990-08-09 Asahi Glass Co Ltd Kunststoffbeschichtete optische glasfiber.
US4892803A (en) 1986-01-23 1990-01-09 Fuji Photo Film Co., Ltd. Color image-forming process compressing developer containing no benzyl alcohol
DE3782351T2 (de) 1986-03-25 1993-05-27 Konishiroku Photo Ind Lichtempfindliches photographisches silberhalogenidmaterial, das fuer schnelle entwicklung verwendbar ist.
DE3855361T2 (de) 1987-10-20 1997-01-02 Fuji Photo Film Co Ltd Photographisches Silberhalogenidmaterial
EP0514675B1 (en) 1991-04-22 1999-12-08 Fuji Photo Film Co., Ltd. Silver halide photographic materials and method for processing the same
US5292632A (en) * 1991-09-24 1994-03-08 Eastman Kodak Company High tabularity high chloride emulsions with inherently stable grain faces
US5441851A (en) * 1991-11-25 1995-08-15 Eastman Kodak Company Use of heterocyclic nitrogen addenda to reduce continued coupling of magenta dye-forming couplers
US5525460A (en) 1992-03-19 1996-06-11 Fuji Photo Film Co., Ltd. Silver halide photographic emulsion and light-sensitive material using the same
US5418124A (en) 1992-03-19 1995-05-23 Fuji Photo Film Co. Ltd. Silver halide photographic emulsion and a photographic light-sensitive material
DE4233714A1 (de) * 1992-10-07 1994-04-14 Agfa Gevaert Ag Verfahren zur Herstellung von Silberhalogenidemulsionen
US5476760A (en) 1994-10-26 1995-12-19 Eastman Kodak Company Photographic emulsions of enhanced sensitivity
JPH09152696A (ja) 1995-11-30 1997-06-10 Fuji Photo Film Co Ltd ハロゲン化銀カラー写真感光材料
US7241564B2 (en) 2004-08-02 2007-07-10 Fujifilm Corporation Silver halide holographic sensitive material and system for taking holographic images by using the same
US20060194121A1 (en) 2005-02-15 2006-08-31 Fuji Photo Film Co., Ltd. Hologram recording material, hologram recording method

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BE342528A (enrdf_load_stackoverflow) * 1926-05-20
BE390036A (enrdf_load_stackoverflow) * 1928-01-31
US3086863A (en) * 1959-01-21 1963-04-23 Du Pont Photographic emulsions containing imidazoles
US3126282A (en) * 1960-05-23 1964-03-24 Najcoj-hzo
JPS4924283B1 (enrdf_load_stackoverflow) * 1965-01-12 1974-06-21
US3511663A (en) * 1965-09-29 1970-05-12 Ferrania Spa Silver halide emulsions containing 2-amino imidazoles as fog inhibitors
US3574628A (en) * 1968-01-29 1971-04-13 Eastman Kodak Co Novel monodispersed silver halide emulsions and processes for preparing same
US3592656A (en) * 1968-09-03 1971-07-13 Eastman Kodak Co Photographic silver halide materials supersensitized with a combination of a triazole and a cyanine dye
US3808003A (en) * 1969-01-24 1974-04-30 Fuji Photo Film Co Ltd Photographic material development method
BE758103A (nl) * 1969-10-29 1971-04-28 Agfa Gevaert Nv Fijnkorrelige fotografische zilverhalogenide emulsies
BE758242A (nl) * 1969-11-06 1971-04-30 Agfa Gevaert Nv Fotografische fijnkorrelige zilverhalogenide-emulsies
JPS5821250B2 (ja) * 1975-08-18 1983-04-28 三菱製紙株式会社 ハロゲンカギンニユウザイノ セイゾウホウホウ

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Publication number Publication date
EP0002759A2 (de) 1979-07-11
EP0002759A3 (en) 1979-07-25
US4298683A (en) 1981-11-03
DE2758711A1 (de) 1979-07-19
CA1146793A (en) 1983-05-24
JPS622301B2 (enrdf_load_stackoverflow) 1987-01-19
JPS54100717A (en) 1979-08-08
DE2860685D1 (en) 1981-08-06

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