EP0706084A1 - Matériau d'enregistrement photographique susceptible de développement rapide pour la radiographie médicale - Google Patents

Matériau d'enregistrement photographique susceptible de développement rapide pour la radiographie médicale Download PDF

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Publication number
EP0706084A1
EP0706084A1 EP95115494A EP95115494A EP0706084A1 EP 0706084 A1 EP0706084 A1 EP 0706084A1 EP 95115494 A EP95115494 A EP 95115494A EP 95115494 A EP95115494 A EP 95115494A EP 0706084 A1 EP0706084 A1 EP 0706084A1
Authority
EP
European Patent Office
Prior art keywords
silver halide
recording material
silver
photographic
material according
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.)
Withdrawn
Application number
EP95115494A
Other languages
German (de)
English (en)
Inventor
Thomas Dr. Müssig-Pabst
Manfred Anfried Schmidt
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 NV
Original Assignee
DuPont de Nemours Deutschland GmbH
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 DuPont de Nemours Deutschland GmbH filed Critical DuPont de Nemours Deutschland GmbH
Publication of EP0706084A1 publication Critical patent/EP0706084A1/fr
Withdrawn legal-status Critical Current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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/16—X-ray, infrared, or ultraviolet ray processes
    • 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
    • G03C2001/03594—Size of the 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3022—Materials with specific emulsion characteristics, e.g. thickness of the layers, silver content, shape of AgX grains
    • G03C2007/3025—Silver content
    • 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
    • G03C2200/00—Details
    • G03C2200/27—Gelatine content
    • 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
    • G03C2200/00—Details
    • G03C2200/52—Rapid processing
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/164—Rapid access processing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/167—X-ray

Definitions

  • the invention relates to a rapidly processable photographic recording material for medical radiography, which is characterized by rapid processability with very good photographic and physical properties.
  • photographic recording materials which contain at least one radiation-sensitive silver halide emulsion layer (hereinafter referred to as X-ray films) on both sides of a support are used in combination with intensifying screens.
  • X-ray films radiation-sensitive silver halide emulsion layer
  • the physical and photographic properties of the X-ray films determine their suitability for the safe diagnosis of diseases by the radiologist.
  • the processing time of a photographic film depends crucially on the composition of the respective film, the structure and mode of operation of the respective film processor and the developer solution and fixer used in the film processor. All parameters, such as the dryer geometry and drying time of the film processor or the process water absorption of the corresponding photographic film, which influence the drying of the photographic films in the film processor, are of particular importance.
  • the processing time is defined as the time that an X-ray film in the standard format of 0.35 X 0.35 m edge length requires for the passage through a film processor, starting with the start of the X-ray film and ending with the complete release of the developed X-ray image. This period is also referred to in the literature as "nose to drop".
  • a silver halide photographic material is said to be rapidly processable if it can be processed in a film processor within 30 to 60 seconds.
  • Another way of reducing the processing time of X-ray films has been to reduce the swelling of the binder by means of stronger crosslinking.
  • this measure leads to a deterioration in photographic properties such as gradation, sensitivity and maximum image blackness.
  • a simultaneous reduction in the application of binder and silver halide in the recording material leads to a lower maximum image blackness and increased through-exposure and thus to a poorer image sharpness of the image produced thereby.
  • This can only be compensated for insufficiently by using filter dyes, since the filter dyes cannot be completely washed out with the desired short processing time and thus have a negative influence on the image color of the x-ray image produced in this way.
  • washable polymers contaminate the processor fluids and are therefore disadvantageous. Furthermore, such films with a low weight ratio of non-washable binder to silver have poor wet printing properties.
  • the object of the invention is to provide a photographic recording material for medical radiography which has very good photographic and physical properties and can be processed in a roll developing machine in less than 60 seconds.
  • the object is achieved by a rapidly processable photographic silver halide recording material for medical radiography according to claim 1.
  • Binder application or silver application is understood to mean the weight of the sum of the binders or the weight of silver in the form of its ions in the layers containing the silver halide crystals, based on the unit area of the silver halide photographic material.
  • the binder that is contained in the auxiliary layers of the silver halide photographic material is therefore not taken into account in the calculation of the binder application.
  • the values for the application of binder or silver are given in grams / square meter and, unless stated otherwise, relate to the totality of all layers of the recording material containing silver halide.
  • a silver coating of at least 5 g / m 2 is suitable for the rapidly processable silver halide photographic material according to the invention.
  • a silver coating of at least 5.2 g / m2 is preferably used. The range from 5.2 to 6.0 g / m 2 is particularly preferred.
  • the recording material according to the invention contains at least one silver halide emulsion layer on each side of the support.
  • a recording material which contains at least one silver halide emulsion layer on each side of the substrate and the silver halide emulsion layers on both sides of the substrate are largely the same.
  • the silver application can be set, for example, via the silver halide concentration in the silver halide emulsion and the layer thickness of the silver halide emulsion layer or silver halide emulsion layers.
  • synthetic polymers such as polymers or copolymers of vinyl alcohol, N-vinylpyrrolidone, acrylamide, acrylic acid, methacrylic acid, vinylimidazole, vinylpyrazole and natural polymers such as casein
  • binder mixtures can also be used in the individual layers.
  • a preferred main constituent of a binder mixture or the sole binder in the layers of photographic recording materials can be, for example, gelatin.
  • Alkaline digested bovine bone gelatin is preferably used as the protective colloid for the silver halide crystals and binder in the emulsion layer. This can be ion-exchanged or not ion-exchanged.
  • a weight ratio of binder or binder mixture to silver of at least 1.1 is preferably used in the silver halide emulsion.
  • a ratio between 1.1 and 1.4 is particularly preferred.
  • This ratio is set, for example, during the preparation of the silver halide emulsion via the amount of binder to be added relative to the amount of silver.
  • the grain volume of a silver halide emulsion is understood to mean the mean volume of the column. This allows different grain shapes such as spheres, cubes, octahedra or plates to be compared with one another.
  • essentially silver halide emulsions are used, the average grain volume of which is below 0.35 ⁇ m3.
  • the preferred range is between 0.05 and 0.35 ⁇ m3
  • the grain size or the grain volume can be determined with the aid of various methods, for example with the aid of electron microscope images of the corresponding emulsion or by the method described in DE 20 25 147.
  • the process water absorption PWP of a photographic silver halide recording material can be determined, for example, by the method described in the exemplary embodiments. Another method is described in European Patent EP-A 03 08 193. Recording materials according to the invention have a process water absorption of less than 20 g of water per square meter of recording material. However, it is preferred to use a recording material which has a PWP of less than 18 g water / m 2.
  • the process water absorption of a photographic recording material can be adjusted, for example, via the amount of hardening agents used to harden the layers in the recording material.
  • the amount of hardener required for this can be determined, for example, with the aid of series tests with different amounts of hardener.
  • the silver halide grains in the silver halide emulsion can have a regular crystal shape such as cubes, octahedra, cubo-octahedra or tetrahedron, an irregular shape such as plates or spheres or mixtures of at least two of these shapes.
  • Silver halide emulsions are preferably used which essentially contain grains with a regular crystal shape and / or spherical silver halide grains. Silver halide emulsions which contain essentially spherical silver halide grains are particularly preferred.
  • Cubes, octahedra, cuboctahedra and single twins with (111) and / or (100) boundary surfaces have an average ratio of the smallest to the largest dimension (aspect ratio) between 1.0: 1.1 and 2.0 and can be regarded as approximately spherical become.
  • Spherical silver halide crystals have a ratio of smallest to largest dimension between 1.0: 1.1 and 1.0: 1.0.
  • Plate-shaped silver halide crystals have an aspect ratio of at least 1.0: 2.0.
  • the photographic silver halide recording material can contain auxiliary layers such as, for example, adhesion-promoting layers, protective layers, intermediate layers, antistatic layers and layers containing colorants on both sides of the substrate in addition to emulsion layers.
  • auxiliary layers such as, for example, adhesion-promoting layers, protective layers, intermediate layers, antistatic layers and layers containing colorants on both sides of the substrate in addition to emulsion layers.
  • the protective layer is the layer which is furthest away from the base and usually does not contain any silver halide.
  • such protective layers may also contain other substances which influence the chemical, physical and mechanical properties of photographic silver halide recording materials. These substances include, for example, lubricants, surface-active substances containing perfluoroalkyl groups, latexes (polymeric organic particles), finely divided crystalline SiO 2 dispersions, matting agents (spacers), curing agents, antistatic substances and preservatives.
  • the binder application for emulsion layers is usually between 0.5 g / m2 and 10.0 g / m2 for protective layers between 0.5 g / m2 and 5.0 g / m2 and for intermediate layers between 0.1 g / m2 and 5.5 g / m2.
  • the photographic emulsions can be prepared from soluble silver salts and soluble halides by various methods.
  • Metal ions such as cadmium, zinc, thallium, mercury, iridium, rhodium and iron or their complexes may be present during the production and / or physical ripening of the silver halide emulsion.
  • the silver halide emulsion can contain silver halide crystals consisting of silver bromide, silver bromoiodide, silver chlorobromoiodide or silver chlorobromide.
  • a silver halide emulsion is preferably used which contains silver bromoiodide with a maximum of 5% iodide based on the halide content.
  • the soluble salts are removed from the emulsion, for example by pasta and washing, by flaking and washing, by ultrafiltration or with the aid of ion exchangers.
  • the silver halide emulsion is generally subjected to chemical sensitization under defined conditions - pH, pAg, temperature, gelatin, silver halide and sensitizer concentration - until the optimum sensitivity and fog are reached.
  • chemical sensitizers such as active gelatin, sulfur, selenium or tellurium compounds, salts or complexes of gold, platinum, rhodium, palladium, iridium, osmium, rhenium, ruthenium can be used alone or in combination. Procedures are described, for example, by H.
  • the layers containing hydrophilic binders can contain organic or inorganic hardening agents.
  • the hardening of a layer can also be effected by covering the layer to be hardened with a layer which contains a diffusible hardening agent, as is described, for example, in DE-A 38 36 945.
  • the curing agent can be added in the course of the preparation of emulsion solutions and / or casting solution for auxiliary layers. Another possible form of addition is to inject a solution of the hardening agent into at least one emulsion or casting solution while it is being transported from the storage kettle to the casting device.
  • chromium salts such as chromium alum
  • aldehydes such as formaldehy
  • Spectral sensitizers such as cyanine dyes, merocyanine dyes, hemicyanine dyes, styryl dyes can be contained in the silver halide emulsion.
  • a spectral sensitizer alone or a combination can be used.
  • substances for stabilizing the emulsion against fog or for stabilizing other photographic properties such as, for example, benzothiazolium salts, nitroindazoles, nitrobenzimidazoles, mercaptothiazoles, mercaptobenzothiazoles, mercaptobenzimidazoles, mercaptothiadiazole, chlorobenzimidazole, benzobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidozole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, bromobenzotrimidazole, brom
  • the silver halide emulsion and in the mixtures for producing the auxiliary layers there can be surface-active substances for various purposes, such as coating aids, to prevent electrostatic charging, to improve the sliding properties, to emulsify the dispersion, to prevent adhesion and to improve photographic characteristics (e.g. acceleration of development, high contrast, sensitization).
  • coating aids to prevent electrostatic charging, to improve the sliding properties, to emulsify the dispersion, to prevent adhesion and to improve photographic characteristics (e.g. acceleration of development, high contrast, sensitization).
  • non-ionic surfactants which contain oligo- or polyoxyalkylene groups, glycerol compounds and glycidol compounds, cationic surfactants, for example higher alkylamines, quaternary ammonium salts, pyridine compounds, and other heterocyclic compounds, Sulphonium compounds or phosphonium compounds, anionic surfactants containing an acid group, for example carboxylic acid, phosphoric acid, sulfuric acid ester or phosphoric acid ester group, ampholytic surfactants such as amino acid and aminosulphonic acid compounds and sulfur and phosphoric acid esters of an amino alcohol.
  • the various layers of the photographic material can contain filter dyes such as oxonol dyes, hemioxonol dyes, styryl dyes, merocyanine dyes, anthraquinone dyes, cyanine dyes, azomethine dyes, triarylmethane dyes, phthalocyanines and azo dyes.
  • filter dyes such as oxonol dyes, hemioxonol dyes, styryl dyes, merocyanine dyes, anthraquinone dyes, cyanine dyes, azomethine dyes, triarylmethane dyes, phthalocyanines and azo dyes.
  • the support of the photographic recording material can consist of a transparent and optionally blue-colored plastic film which has been produced from polyethylene terephthalate, cellulose acetate, cellulose acetate butyrate, polystyrene or polycarbonate.
  • the surface of the carrier is preferably treated by a coronary discharge before a first coating to improve the adhesion properties.
  • Various casting methods can be used to make the photographic material. Examples of this are curtain casting, cascade casting, dip casting, wash-on casting, slot casting. If necessary, several layers can be applied simultaneously.
  • Another advantage of the rapidly processable photographic recording material according to the invention is the property of having a comparable sensitometry both with a processing time of 90 seconds and with a processing time of less than 60 seconds.
  • the rapidly processable silver halide photographic material according to the invention also has an improved visual resolution, an improved silver color, a particularly good wet scratch resistance and improved wet printing properties.
  • a silver halide emulsion A was prepared using spherical silver bromide iodide grains (2% iodide content) with an average grain volume of 0.09 ⁇ m3, the ratio of the weight proportions of binder to silver being 1.4.
  • the emulsion and a mixture for producing a protective layer were applied uniformly on both sides to a polyester base provided with an adhesive layer on both sides and dried.
  • the mixture for the preparation of a protective layer consisted essentially of an aqueous gelatin solution and also contained wetting agents and formaldehyde as hardening agents.
  • the layers on both sides of a film sample each had the same silver and binder application and were each hardened with the same amount of hardener.
  • the amount of hardener used and the wet application of the two layers were chosen so that the silver applications and process water absorption values PWP of the two film samples A1 and A2 described in Table 1 and a gelatin application of the protective layer of 1.2 g / m 2 each were achieved.
  • a silver halide emulsion B was prepared using spherical silver bromide iodide grains (2% iodide content) with an average grain volume of 0.22 ⁇ m3, the ratio of the weight proportions of binders to silver being 1.15.
  • the emulsion was applied to a film B1 and B2 as described for film samples A1 and A2 together with a mixture for producing a protective layer located above the emulsion layer, essentially containing gelatin, and using formaldehyde as a hardening agent and dried so that the in Silver applications and process water absorption values PWP described in Table 1 were achieved and the gelatin application of the protective layer was 1.36 g / m2 on each side.
  • the mean grain volume was determined in each case using the method described in German patent DE 20 25 147.
  • the process water absorption values PWP of the film samples were determined by first exposing a sheet of the recording material to be examined without pouring margins or non-cast areas over its entire area with an exposure corresponding to the saturation range of the density curve, using a Kodak processor M8 roll developing machine with the rear cover and the upper deflection shaft behind the Was removed, charged with a developer solution and a fixing bath of the following composition: Developer: Fixing bath: Hydroquinone 24.0 g / l Ammonium thiosulfate 130.0 g / l Phenylpyrazolidone 0.75 g / l Sodium sulfite, anhydrous 10.0 g / l Sodium sulfite, anhydrous 60.0 g / l Boric acid 7.0 g / l Sodium metaborate 33.0 g / l Acetic acid (90% by weight) 5.5 g / l Sodium hydroxide 19.0 g / l Sodium acetate trihydrate 25.0
  • the sensitometric data for the sensitivity, maximum image blackness (D-Max) and medium gradient were obtained by standardized exposure and processing and are shown in Tables 2 and 3. Numerical values in brackets mean that the film has not left the film processor sufficiently dry and that the measured data are therefore unsuitable for direct comparison.
  • film samples A2 and B2 leave the film processor after a processing time of 53 seconds and each have a sensitometry suitable for radiological use. After processing in the two processing times used, the two film samples A2 and B2 each have comparable sensitometric values for sensitivity, maximum image blackness and gradation. Both film samples A2 and B2 also have, compared to film samples A1 and B1, an improved wet printing property, an improved image silver color, that is to say more neutral, improved pressure sensitization properties, improved noise and improved image sharpness.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP95115494A 1994-10-07 1995-09-30 Matériau d'enregistrement photographique susceptible de développement rapide pour la radiographie médicale Withdrawn EP0706084A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4435876 1994-10-07
DE4435876A DE4435876A1 (de) 1994-10-07 1994-10-07 Schnellverarbeitbares photographisches Aufzeichnungsmaterial für die medizinische Radiographie

Publications (1)

Publication Number Publication Date
EP0706084A1 true EP0706084A1 (fr) 1996-04-10

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ID=6530205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95115494A Withdrawn EP0706084A1 (fr) 1994-10-07 1995-09-30 Matériau d'enregistrement photographique susceptible de développement rapide pour la radiographie médicale

Country Status (4)

Country Link
US (1) US5576155A (fr)
EP (1) EP0706084A1 (fr)
JP (1) JPH08211520A (fr)
DE (1) DE4435876A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5994039A (en) * 1998-08-24 1999-11-30 Eastman Kodak Company Black-and-white photographic developing composition and a method for its use
US6573036B2 (en) * 2000-04-10 2003-06-03 Afga-Gevaert Single-side coated silver halide photographic film material having reduced tendency to curl

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0308193A2 (fr) * 1987-09-14 1989-03-22 Konica Corporation Matériau photographique à l'halogénure d'argent sensible à la lumière
EP0559061A2 (fr) * 1992-03-06 1993-09-08 Minnesota Mining And Manufacturing Company Procédé de traitement d'un élément radiographique à l'halogénure d'argent

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US3880665A (en) * 1972-05-24 1975-04-29 Agfa Gevaert Ag Hardening with a heterocyclic carbamoyl ammonium compound of a photographic material containing a silver halide layer
JPS57212427A (en) * 1981-06-24 1982-12-27 Fuji Photo Film Co Ltd Silver halide photosensitive material
JP2530145B2 (ja) * 1986-03-13 1996-09-04 コニカ株式会社 ハロゲン化銀写真感光材料及びその処理方法
EP0259855A3 (fr) * 1986-09-10 1990-04-18 Fuji Photo Film Co., Ltd. Procédé de développement de matériaux photographiques à l'halogénure d'argent
USH674H (en) * 1986-11-04 1989-09-05 Konica Corporation Silver halide photographic light-sensitive material capable of super-rapid processing
EP0271309B1 (fr) * 1986-12-08 1994-03-02 Konica Corporation Matériau photographique à l'halogénure d'argent sensible à la lumière pour traitement rapide et son traitement
US5081007A (en) * 1987-09-15 1992-01-14 Konica Corporation Method for processing a silver halide light-sensitive photographic material and an automatic processor therefor
JPH01213642A (ja) * 1988-02-20 1989-08-28 Konica Corp ハロゲン化銀写真感光材料の処理方法
FR2640634B1 (fr) * 1988-12-16 1991-04-05 Sanofi Sa Gelatine fluoree et procede d'obtention
JPH0466934A (ja) * 1990-07-04 1992-03-03 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料
US5310636A (en) * 1990-10-31 1994-05-10 Fuji Photo Film Co., Ltd. Silver halide photographic material and the development processing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0308193A2 (fr) * 1987-09-14 1989-03-22 Konica Corporation Matériau photographique à l'halogénure d'argent sensible à la lumière
EP0559061A2 (fr) * 1992-03-06 1993-09-08 Minnesota Mining And Manufacturing Company Procédé de traitement d'un élément radiographique à l'halogénure d'argent

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US5576155A (en) 1996-11-19
JPH08211520A (ja) 1996-08-20
DE4435876A1 (de) 1996-04-11

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