EP0361004A1 - Photographic material with half-tone gradation for day-light processing - Google Patents
Photographic material with half-tone gradation for day-light processing Download PDFInfo
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- EP0361004A1 EP0361004A1 EP89113416A EP89113416A EP0361004A1 EP 0361004 A1 EP0361004 A1 EP 0361004A1 EP 89113416 A EP89113416 A EP 89113416A EP 89113416 A EP89113416 A EP 89113416A EP 0361004 A1 EP0361004 A1 EP 0361004A1
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- silver
- silver halide
- recording material
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- halide emulsion
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- 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
Definitions
- the invention relates to a photographic recording material (daylight film) which can be processed in daylight and is suitable for reproducing halftones.
- a daylight film is understood to be a film that can be handled in daylight or conditions similar to daylight, in particular exposed and developed in terms of images. Such a film therefore has a comparatively very low sensitivity.
- the invention relates to a photographic recording material that can be processed in daylight, in particular a daylight film with at least one silver halide emulsion layer applied to a support, characterized in that the silver halide consists of at least 75 mol%, preferably at least 95 mol%, of silver chloride and has been prepared in the presence of a 1-phenyl-5-mercaptotetrazole .
- the 1-phenyl-5-mercaptotetrazole compound used can be 1-phenyl-5-mercaptotetrazole itself, but it can also be substituted on the phenyl ring, e.g. B. with amino, acylamino or with solubilizing functional groups such as hydroxyl or carboxyl.
- the 1-phenyl-5-mercaptotetrazole compound can also be in a form in which the mercapto group is blocked and, if appropriate, is only released under the precipitation conditions;
- 1-phenyl-5-mercaptotetrazole compounds with a blocked mercapto group are described, for example, in DE-A-21 61 044 and DE-A-21 61 045.
- the 1-phenyl-5-mercaptotetrazole compound is preferably used in an amount of 0.5 to 50 mmol, based on 1 mol of the total of silver nitrate to be used in the precipitation of the silver halide.
- the 1-phenyl-5-mercaptotetrazole compound is generally introduced in solution form during the precipitation together with an emulsion binder, in particular gelatin, and the precipitation reaction partners - silver nitrate solution on the one hand and halide solution on the other hand - are generally added by the usual double jet process.
- the composition of the halide solution corresponds essentially to the halide ratio of the desired emulsion. Accordingly, the halide of the halide solution consists mainly, ie more than 75 mol%, preferably more than 95 mol%, of chloride; the rest consists of bromide and / or iodide, the iodide content generally not exceeding 10 mol%.
- the iodide can also be added in whole or in part after the end of the actual precipitation. However, bromide and iodide can also be completely absent if a pure silver chloride emulsion is to be produced.
- the silver chloride emulsions according to the invention normally have an average grain size of less than 0.1 ⁇ m.
- These can be homodisperse or heterodisperse emulsions, for example an emulsion in which 90% of all grains have a grain size that deviates up or down from the average grain size by 0.04 ⁇ m or less.
- the emulsions can be worked up in the customary manner, for. B. by flaking, washing and redispersing.
- the emulsions are not chemically ripened, but they can still be mixed with the usual additives. These are, in particular, other stabilizers, such as mercury salts, triazaindolizines, wetting agents and hardening agents.
- additives such as mercury salts, triazaindolizines, wetting agents and hardening agents.
- One can even spectral without significantly changing the daylight security Add sensitizers.
- electron scavengers such as pinacryptol yellow and the like as desensitizers in order to further reduce the sensitivity to daylight.
- noble metal compounds such as, for example, hexahalogeno complexes of rhodium, iridium or osmium is possible and may be useful.
- the silver halide emulsion according to the invention contains, for example, 10-200 mg pinacryptol yellow and / or 1-100 mg sodium hexachlororhodiate-III per mol silver.
- the emulsion according to the invention can be cast as a single layer or can also be distributed over two or more layers which are poured directly onto one another or can be separated by separating layers.
- All layers can contain so-called screen dyes, which are not photographically active, but only absorb light and thus contribute to sharpness.
- the emulsions can be poured onto transparent substrates, e.g. on a transparent film or on glass plates, it is also possible to use opaque underlays, e.g. of layer supports made of paper, which can optionally be hydrophobized on one or both sides by coating.
- developer substances can be contained in the emulsion layer. However, it is also possible to store the developer substances in separate layers above, below or between the emulsion layer (s).
- the daylight film according to the invention is outstandingly suitable for the production of black and white halftone reproductions, in particular for the production of running masks which are sometimes used in combination photography with color separation reproductions. Due to its property, in daylight or conditions similar to daylight, e.g. B. can be processed with fluorescent lighting, or represents a valuable asset for repro photography, because an additional darkroom facility is unnecessary.
- Both solutions A and B are added to the presented solution C in the usual double jet process in 120 s without pAg control.
- a solution of 12 g of KI in 100 ml of water is added, then the mixture is stirred for a further 4 minutes and then flocculated and washed out with polystyrene sulfonic acid in the customary manner.
- Wetting agent is added according to the casting system.
- a coating is produced from the emulsion with an application corresponding to 3.0 g of silver nitrate per m2.
- a protective layer is drawn over the emulsion layer, consisting of a 3.2% aqueous gelatin solution which contains wetting agents corresponding to the casting system and 0.2% formaldehyde as hardening agent.
- the thickness of the protective layer is approx. 1 ⁇ m after drying.
- the material After casting, the material is stored until the hardening has risen to a constant value. For testing purposes, the material is imaged on one of the commercially available daylight copiers behind a step wedge tet. Development takes place at 27 ° C for different lengths in a phenidone hydroquinone developer of the following composition: 2 g Trilon B 70 g K2CO3 200 g K2SO3 30 g KBr 16 g KOH 60 g hydroquinone 1.45 g phenidone 90 mg of 1-phenyl-5-mercaptotetrazole fill up with water to 1000 ml (concentrate); for use, 1 volume of the concentrate is diluted with 2 volumes of water.
- a phenidone hydroquinone developer of the following composition: 2 g Trilon B 70 g K2CO3 200 g K2SO3 30 g KBr 16 g KOH 60 g hydroquinone 1.45 g phenidone 90 mg of 1-phenyl-5-mer
- An emulsion is prepared according to the instructions in Example 1, but using only 17.2 KBr instead of 172 g KBr and 451 g NaCl instead of 375 g NaCl.
- Table 2 Amount of phenyl mercaptotetrazole [g] Gradation measured between densities 0.3 and 1.7 after development time 164 s 82 s 32 s 0 3.14 3.01 3.20 26.0 1.03 0.99 0.98
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
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Abstract
Description
Die Erfindung betrifft ein fotografisches, bei Tageslicht verarbeitbares Aufzeichnungsmaterial (Tageslichtfilm), das zur Wiedergabe von Halbtönen geeignet ist. Unter einem Tageslichtfilm wird ein Film verstanden, der bei Tageslicht oder tageslichtähnlichen Bedingungen gehandhabt, insbesondere bildmäßig belichtet und entwickelt werden kann. Ein solcher Film wiest also eine vergleichsweise sehr geringe Empfindlichkeit auf.The invention relates to a photographic recording material (daylight film) which can be processed in daylight and is suitable for reproducing halftones. A daylight film is understood to be a film that can be handled in daylight or conditions similar to daylight, in particular exposed and developed in terms of images. Such a film therefore has a comparatively very low sensitivity.
Es ist bekannt, daß beim Übergang von hochempfindlichen Silberhalogenidemulsionen zu niedriger empfindlichen die bei der Entwicklung erzeugte Gradationskurve immer steiler wird, bis eine gewisse Grenzgradation erreicht wird, die dann ohne zusätzliche Maßnahmen nicht mehr überschritten wird. Diese Gradation ist aber so steil, daß praktisch nur noch Schwarzweiß-Wiedergaben möglich sind, also keine Grautöne mehr wiedergegeben werden.It is known that in the transition from highly sensitive silver halide emulsions to lower sensitive ones, the gradation curve generated during development becomes ever steeper until a certain limit gradation is reached, which is then no longer exceeded without additional measures. This gradation is so steep, however, that practically only black-and-white reproductions are possible, meaning that gray tones are no longer reproduced.
Filme dieser Art werden schon lange vor allem in der grafischen Industrie verwendet. In den letzten Jahren ist es nun gelungen, die Filme so unempfindlich zu machen, daß sie auch bei gewöhnlichem Tageslicht oder bei Leuchtstoffröhrenbeleuchtung ohne Dunkelkammer gehandhabt werden können. Allerdings haben, wie schon erwähnt, alle auf dem Markt befindlichen Materialien dieser Art eine so steile Gradation, daß Grautöne nicht wiedergegeben werden können. Es besteht aber der Bedarf an einem bei tageslichtähnlichen Bedingungen verarbeitbaren Aufzeichnungsmaterial, dessen Gradation so flach ist, daß Grautöne wiedergegeben werden können. Vor allem zur Herstellung von verlaufenden Masken wäre dies ein außerordentlicher Vorteil.Films of this type have long been used primarily in the graphics industry. In recent years, the films have now been made so insensitive that they can be handled even in normal daylight or under fluorescent lighting without a dark room. However, as already mentioned, all materials of this type on the market have such a steep gradation that gray tones cannot be reproduced. However, there is a need for a recording material which can be processed under conditions similar to daylight and whose gradation is so flat that gray tones can be reproduced. This would be an extraordinary advantage, especially for the production of trending masks.
Wenn der mit Tageslichtsystemen arbeitende Reprofotograf heute eine solche verlaufende Maske herstellen will, dann muß er, weil hierfür nur empfindlichere Filme zur Verfügung stehen, die nicht tageslichtsicher sind, die Maske in einer Dunkelkammer auf einem der handelsüblichen klassischen Halbtonfilme belichten und in einer dort befindlichen weiteren Entwicklungsmaschine entwickeln, also sein gesamtes Arbeitsfeld verlassen. Dies bedeutet einen erheblichen zusätzlichen Aufwand an Zeit und Kosten (Material und Investitionen). Ein Verfahren, das sowohl Dunkelkammer als auch eine gesonderte Entwicklungsmaschine vermeidet, hätte große Vorteile.If the re-photographer working with daylight systems wants to produce such a mask today, then, because only sensitive films that are not daylight-proof are available, he has to expose the mask in a dark room on one of the commercially available classic halftone films and in another one located there Develop a development machine, i.e. leave your entire field of work. This means a considerable additional expenditure of time and costs (material and investments). A process that avoids both darkroom and a separate processor would have great advantages.
Es ist bekannt und Stand der Technik, das Kornwachstum bei der Herstellung von Silberhalogenidemulsionen da durch zu hemmen, daß man die Fällung des Silberhalogenids in Gegenwart von Verbindungen durchführt, die stark am Silberhalogenid adsorbiert werden. In der Literatur sind hierzu verschiedene Stabilisatoren beschrieben, insbesondere Aminosäuren oder andere Stickstoff und/oder Schwefel enthaltende organische Verbindungen. Eine der für solche Zwecke häufig eingesetzten Verbindungen ist Phenylmercaptotetrazol, vergl. GB 1 204 623. Normalerweise werden solche Versuche nur mit Silberhalogenidemulsionen durchgeführt, die hauptsächlich aus Silberbromid mit gegebenenfalls geringen Anteilen Silberchlorid und/oder Silberiodid bestehen, denn der große Vorteil des Silberchlorids, die schnelle Entwickelbarkeit, kommt bei derart feinkörnigen Emulsionen nicht mehr wesentlich zum Tragen.It is known and prior art that grain growth in the production of silver halide emulsions is there by inhibiting that the precipitation of the silver halide is carried out in the presence of compounds which are strongly adsorbed on the silver halide. Various stabilizers are described in the literature for this purpose, in particular amino acids or other organic compounds containing nitrogen and / or sulfur. One of the compounds frequently used for such purposes is phenylmercaptotetrazole, see GB 1 204 623. Normally, such tests are only carried out with silver halide emulsions, which consist mainly of silver bromide with possibly small proportions of silver chloride and / or silver iodide, because the great advantage of silver chloride is that rapid developability, is no longer significant with such fine-grain emulsions.
Versucht man nun bei silberchloridreichen Emulsionen das Kornwachstum mit einem Stabilisator vom Typ des Phenylmercaptotetrazols zu hemmen, so stellt man überraschend fest, daß die Gradation der erhaltenen Emulsionen sehr viel flacher ist als erwartet, je nach Menge des verwendeten Wachstumshemmers einstellbar. Dies geschieht, ohne daß die Korngrößenverteilung der Emulsion sich auffällig verbreitert. Das ist ein völlig überraschender und unerwarteter Effekt. Üblicherweise wird eine flache Gradation durch eine sehr breite Korngrößenverteilung des Silberhalogenids erzeugt, was einer breiten Empfindlichkeitsverteilung der Körner entspricht.If you now try to inhibit grain growth in silver chloride-rich emulsions with a stabilizer of the phenyl mercaptotetrazole type, it is surprisingly found that the gradation of the emulsions obtained is much flatter than expected, depending on the amount of growth inhibitor used. This happens without the grain size distribution of the emulsion widening conspicuously. This is a completely surprising and unexpected effect. A flat gradation is usually produced by a very wide grain size distribution of the silver halide, which corresponds to a wide sensitivity distribution of the grains.
Gegenstand der Erfindung ist ein fotografisches, bei Tageslicht verarbeitbares Aufzeichnungsmaterial, insbeson dere ein Tageslichtfilm mit mindestens einer auf einen Schichtträger aufgetragenen Silberhalogenidemulsionsschicht, dadurch gekennzeichnet, daß das Silberhalogenid zu mindestens 75 mol-%, vorzugsweise zu mindestens 95 mol-%, aus Silberchlorid besteht und in Gegenwart eines 1-Phenyl-5-mercaptotetrazols hergestellt worden ist.The invention relates to a photographic recording material that can be processed in daylight, in particular a daylight film with at least one silver halide emulsion layer applied to a support, characterized in that the silver halide consists of at least 75 mol%, preferably at least 95 mol%, of silver chloride and has been prepared in the presence of a 1-phenyl-5-mercaptotetrazole .
Die verwendete 1-Phenyl-5-mercaptotetrazol-Verbindung kann 1-Phenyl-5-mercaptotetrazol selbst sein, sie kann aber auch am Phenylring substituiert sein, z. B. mit Amino, Acylamino oder mit löslichmachenden funktionellen Gruppen wie Hydroxyl oder Carboxyl. Die 1-Phenyl-5-mercaptotetrazol-Verbindung kann aber auch in einer Form vorliegen, bei der die Mercaptogruppe blockiert ist und gegebenenfalls erst unter den Fällungsbedingungen freigesetzt wird; 1-Phenyl-5-mercaptotetrazol-Verbindungen mit blockierter Mercaptogruppe sind beispielsweise in DE-A-21 61 044 und DE-A-21 61 045 beschrieben.The 1-phenyl-5-mercaptotetrazole compound used can be 1-phenyl-5-mercaptotetrazole itself, but it can also be substituted on the phenyl ring, e.g. B. with amino, acylamino or with solubilizing functional groups such as hydroxyl or carboxyl. However, the 1-phenyl-5-mercaptotetrazole compound can also be in a form in which the mercapto group is blocked and, if appropriate, is only released under the precipitation conditions; 1-phenyl-5-mercaptotetrazole compounds with a blocked mercapto group are described, for example, in DE-A-21 61 044 and DE-A-21 61 045.
Die 1-Phenyl-5-mercaptotetrazol-Verbindung wird vorzugsweise in einer Menge von 0,5 bis 50 mmol verwendet, bezogen auf 1 mol des bei der Fällung des Silberhalogenids insgesamt einzusetzenden Silbernitrats.The 1-phenyl-5-mercaptotetrazole compound is preferably used in an amount of 0.5 to 50 mmol, based on 1 mol of the total of silver nitrate to be used in the precipitation of the silver halide.
Die 1-Phenyl-5-mercaptotetrazol-Verbindung wird im allgemeinen bei der Fällung in gelöster Form zusammen mit einem Emulsionsbindemittel, insbesondere Gelatine, vorgelegt, und die Fällungsreaktionspartner - Silbernitratlösung einerseits und Halogenidlösung andererseits - werden im allgemeinen nach dem üblichen Doppeleinlauf-Verfahren (double jet) zugefügt. Die Zusammensetzung der Halogenidlösung entspricht im wesentlichen dem Halogenidverhältnis der gewünschten Emulsion. Demnach besteht das Halogenid der Halogenidlösung hauptsächlich, d. h. zu mehr als 75 mol-%, bevorzugt zu mehr als 95 mol-%, aus Chlorid; der Rest besteht aus Bromid und/oder Iodid, wobei der Iodidanteil im allgemeinen nicht größer als 10 mol-% ist. Das Iodid kann aber auch ganz oder teilweise nach Abschluß der eigentlichen Fällung zugefügt werden. Bromid und Iodid können aber auch vollständig fehlen, wenn eine reine Silberchloridemulsion hergestellt werden soll.The 1-phenyl-5-mercaptotetrazole compound is generally introduced in solution form during the precipitation together with an emulsion binder, in particular gelatin, and the precipitation reaction partners - silver nitrate solution on the one hand and halide solution on the other hand - are generally added by the usual double jet process. The composition of the halide solution corresponds essentially to the halide ratio of the desired emulsion. Accordingly, the halide of the halide solution consists mainly, ie more than 75 mol%, preferably more than 95 mol%, of chloride; the rest consists of bromide and / or iodide, the iodide content generally not exceeding 10 mol%. However, the iodide can also be added in whole or in part after the end of the actual precipitation. However, bromide and iodide can also be completely absent if a pure silver chloride emulsion is to be produced.
Die erfindungsgemäßen Silberchloridemulsionen haben normalerweise eine durchschnittliche Korngröße von weniger als 0,1 µm. Es kann sich dabei um homodisperse oder heterodisperse Emulsionen handeln, beispielsweise um eine Emulsion, in der 90 % aller Körner eine Korngröße haben, die um 0,04 µm oder weniger von der durchschnittlichen Korngröße nach oben oder unten abweicht.The silver chloride emulsions according to the invention normally have an average grain size of less than 0.1 μm. These can be homodisperse or heterodisperse emulsions, for example an emulsion in which 90% of all grains have a grain size that deviates up or down from the average grain size by 0.04 μm or less.
Die Aufarbeitung der Emulsionen kann in der üblichen Weise erfolgen, z. B. durch Flocken, Auswaschen und Redispergieren. Die Emulsionen werden nicht chemisch gereift, sie können aber noch mit den üblichen Zusätzen versehen werden. Das sind insbesondere weitere Stabilisatoren, wie Quecksilbersalze, Triazaindolizine, Netzmittel und Härtungsmittel. Man kann sogar, ohne daß sich die Tageslichtsicherheit wesentlich ändert, spektrale Sensibilisatoren zusetzen. Vorteilhaft ist auch der Zusatz von Elektronenfängern wie Pinakryptolgelb und ähnlichen als Desensibilisatoren, um die Tageslichtempfindlichkeit noch weiter zu drücken.The emulsions can be worked up in the customary manner, for. B. by flaking, washing and redispersing. The emulsions are not chemically ripened, but they can still be mixed with the usual additives. These are, in particular, other stabilizers, such as mercury salts, triazaindolizines, wetting agents and hardening agents. One can even spectral without significantly changing the daylight security Add sensitizers. It is also advantageous to add electron scavengers such as pinacryptol yellow and the like as desensitizers in order to further reduce the sensitivity to daylight.
Auch die Zugabe von Edelmetallverbindungen wie beispielsweise Hexahalogenokomplexe des Rhodiums, Iridiums oder Osmiums ist möglich und gegebenenfalls sinnvoll.The addition of noble metal compounds such as, for example, hexahalogeno complexes of rhodium, iridium or osmium is possible and may be useful.
In einer bevorzugten Ausführungsform enthält die erfindungsgemäße Silberhalogenidemulsion beispielsweise pro mol Silber 10 - 200 mg Pinakryptolgelb und/oder 1 - 100 mg Natriumhexachlororhodiat-III.In a preferred embodiment, the silver halide emulsion according to the invention contains, for example, 10-200 mg pinacryptol yellow and / or 1-100 mg sodium hexachlororhodiate-III per mol silver.
Die erfindungsgemäße Emulsion kann als einzelne Schicht vergossen werden oder aber auch auf zwei oder mehrere Schichten verteilt werden, die direkt aufeinander gegossen werden oder durch Trennschichten getrennt sein können. Um besondere Formen der Schwärzungskurven zu erzielen, kann man auch einen mehrschichtigen Film herstellen, bei dem eine oder mehrere Schichten aus einer kontrastreichen Emulsion sowie ein oder mehrere Schichten aus der beschriebenen Halbtontageslichtemulsion bestehen. Es ist sogar zur Erzielung besonderer Effekte denkbar, die erfindungsgemäße Halbtontageslichtemulsionen mit klassischen Emulsionen zu kombinieren. Über der Schicht mit der erfindungsgemäßen Emulsion befindet sich üblicherweise eine Schutzschicht, zwischen ihr und der Substratschicht des Schichtträgers kann sich eine weitere nichtsilberhaltige Schicht befinden. Auch eine Kom bination von einer normalen steil arbeitenden Silberhalogenidemulsionsschicht mit einer Schicht der erfindungsgemäßen Emulsion, gegebenenfalls mit gleicher oder verschiedener Spektralsensibilisierung, ist möglich. Alle Schichten können sogenannte Schirmfarbstoffe enthalten, die fotografisch nicht aktiv sind, sondern nur Licht absorbieren und somit zur Schärfe beitragen.The emulsion according to the invention can be cast as a single layer or can also be distributed over two or more layers which are poured directly onto one another or can be separated by separating layers. In order to achieve special forms of the blackening curves, it is also possible to produce a multilayer film in which one or more layers consist of a high-contrast emulsion and one or more layers consist of the halftone daylight emulsion described. In order to achieve special effects, it is even conceivable to combine the halftone daylight emulsions according to the invention with classic emulsions. There is usually a protective layer over the layer with the emulsion according to the invention, and another non-silver-containing layer can be located between it and the substrate layer of the support. Also a comm Combination of a normal, steeply working silver halide emulsion layer with a layer of the emulsion according to the invention, optionally with the same or different spectral sensitization, is possible. All layers can contain so-called screen dyes, which are not photographically active, but only absorb light and thus contribute to sharpness.
Die Emulsionen können auf transparente Unterlagen gegossen werden, z.B. auf einen transparenten Film oder auf Glasplatten, es ist auch die Verwendung von opaken Unterlagen möglich, z.B. von Schichtträgern aus Papier, das gegebenenfalls ein- oder beidseitig durch Beschichtung hydrophobiert sein kann.The emulsions can be poured onto transparent substrates, e.g. on a transparent film or on glass plates, it is also possible to use opaque underlays, e.g. of layer supports made of paper, which can optionally be hydrophobized on one or both sides by coating.
Zur Vereinfachung der Entwicklung können Entwicklersubstanzen in der Emulsionsschicht enthalten sein. Es ist aber auch möglich, die Entwicklersubstanzen in separate Schichten über, unter oder zwischen der/den Emulsionsschicht/en einzulagern.To simplify development, developer substances can be contained in the emulsion layer. However, it is also possible to store the developer substances in separate layers above, below or between the emulsion layer (s).
Der erfindungsgemäße Tageslichtfilm eignet sich hervorragend zur Herstellung von schwarzweißen Halbtonwiedergaben, insbesondere zur Herstellung von verlaufenden Masken, die in der Reprofotografie gelegentlich kombiniert mit Farbauszugswiedergaben verwendet werden. Aufgrund seiner Eigenschaft, bei Tageslicht oder tageslichtähnlichen Bedingungen, z. B. bei Leuchtstoffröhrenlicht, verarbeitet werden zu können, stellt or eine wertvolle Bereicherung für die Reprofotografie dar, weil sich eine zusätzliche Dunkelkammereinrichtung erübrigt.The daylight film according to the invention is outstandingly suitable for the production of black and white halftone reproductions, in particular for the production of running masks which are sometimes used in combination photography with color separation reproductions. Due to its property, in daylight or conditions similar to daylight, e.g. B. can be processed with fluorescent lighting, or represents a valuable asset for repro photography, because an additional darkroom facility is unnecessary.
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A: 3500 ml Wasser 25°C
1225 g AgNO₃A: 3500 ml of water at 25 ° C
1225 g AgNO₃ -
B: 3000 ml Wasser 25°C
172 g KBr
375 g NaClB: 3000 ml of water at 25 ° C
172 g KBr
375 g NaCl -
C: 5600 ml Wasser 40°C
172 g Inertgelatine
Phenylmercaptotetrazol (wie in Tabelle 1 angegeben) gelöst in 350 ml MethanolC: 5600 ml water 40 ° C
172 g of inert gelatin
Phenyl mercaptotetrazole (as indicated in Table 1) dissolved in 350 ml of methanol
Beide Lösungen A und B werden im üblichen double jet - Verfahren in 120 s ohne pAg-Steuerung in die vorgelegte Lösung C gegeben. Nach Beendigung des Doppeleinlaufes wird eine Lösung von 12 g KI in 100 ml Wasser zugefügt, dann wird 4 min weiter gerührt und anschließend mit Polystyrolsulfonsäure in der üblichen Weise geflockt und ausgewaschen.Both solutions A and B are added to the presented solution C in the usual double jet process in 120 s without pAg control. After the double run-in has ended, a solution of 12 g of KI in 100 ml of water is added, then the mixture is stirred for a further 4 minutes and then flocculated and washed out with polystyrene sulfonic acid in the customary manner.
Die Emulsionen werden nicht chemisch gereift. Vor dem Beguß wird, berechnet auf 45 g AgNO₃, zugefügt:
32 mg Pinakryptolgelb (gelöst in Wasser)
0,68 mg Natriumhexachlororhodiat-III
32 mg Verbindung der Formel I
3200 mg Verbindung der Formel IIThe emulsions are not chemically ripened. Before the watering, calculated on 45 g AgNO₃, is added:
32 mg pinacryptol yellow (dissolved in water)
0.68 mg sodium hexachlororhodiate III
32 mg of compound of formula I.
3200 mg of compound of formula II
Netzmittelzugabe erfolgt entsprechend dem Gießsystem.
Von der Emulsion wird eine Beschichtung hergestellt mit einem Auftrag entsprechend 3,0 g Silbernitrat pro m². Über die Emulsionsschicht wird eine Schutzschicht gezogen, bestehend aus einer 3,2 %igen wäßrigen Gelatinelösung, die Netzmittel entsprechend dem Gießsystem und als Härtungsmittel 0,2 % Formaldehyd enthält.A coating is produced from the emulsion with an application corresponding to 3.0 g of silver nitrate per m². A protective layer is drawn over the emulsion layer, consisting of a 3.2% aqueous gelatin solution which contains wetting agents corresponding to the casting system and 0.2% formaldehyde as hardening agent.
Die Dicke der Schutzschicht beträgt nach der Trocknung ca. 1 µm.The thickness of the protective layer is approx. 1 µm after drying.
Nach dem Beguß wird das Material gelagert, bis die Härtung auf einen konstanten Wert angestiegen ist. Zur Prüfung wird das Material an einem der handelsüblichen Tageslichtkopiergeräte hinter einem Stufenkeil belich tet. Entwickelt wird bei 27°C unterschiedlich lang in einem Phenidon-Hydrochinonentwickler der folgenden Zusammensetzung:
2 g Trilon B
70 g K₂CO₃
200 g K₂SO₃
30 g KBr
16 g KOH
60 g Hydrochinon
1,45 g Phenidon
90 mg 1-Phenyl-5-mercaptotetrazol
auffüllen mit Wasser auf 1000 ml (Konzentrat); zum Gebrauch wird 1 Volumenteil des Konzentrates mit 2 Volumenteilen Wasser verdünnt.
2 g Trilon B
70 g K₂CO₃
200 g K₂SO₃
30 g KBr
16 g KOH
60 g hydroquinone
1.45 g phenidone
90 mg of 1-phenyl-5-mercaptotetrazole
fill up with water to 1000 ml (concentrate); for use, 1 volume of the concentrate is diluted with 2 volumes of water.
Nach den Angaben von Beispiel 1 wird eine Emulsion hergestellt, wobei jedoch statt 172 g KBr nur 17,2 KBr und statt 375 g NaCl 451 g NaCl verwendet werden.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89113416T ATE98385T1 (en) | 1988-08-03 | 1989-07-21 | DAYLIGHT PROCESSABLE PHOTOGRAPHIC RECORDING WITH HALF TONE GRADING. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3826374 | 1988-08-03 | ||
| DE3826374A DE3826374A1 (en) | 1988-08-03 | 1988-08-03 | PHOTOGRAPHIC RECORDING MATERIAL TO BE PROCESSED IN DAYLIGHT WITH HALFTONE GRADATION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0361004A1 true EP0361004A1 (en) | 1990-04-04 |
| EP0361004B1 EP0361004B1 (en) | 1993-12-08 |
Family
ID=6360165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89113416A Expired - Lifetime EP0361004B1 (en) | 1988-08-03 | 1989-07-21 | Photographic material with half-tone gradation for day-light processing |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5045444A (en) |
| EP (1) | EP0361004B1 (en) |
| JP (1) | JPH02262644A (en) |
| AT (1) | ATE98385T1 (en) |
| DE (2) | DE3826374A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5240828A (en) * | 1989-12-22 | 1993-08-31 | Eastman Kodak Company | Direct reversal emulsions |
| US5342743A (en) * | 1991-07-01 | 1994-08-30 | Fuji Photo Film Co., Ltd. | Silver halide photographic material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3403825A1 (en) * | 1983-02-04 | 1984-08-16 | Mitsubishi Paper Mills, Ltd., Tokyo | Photographic light-sensitive silver halide materials |
| EP0255721A2 (en) * | 1986-08-05 | 1988-02-10 | Fuji Photo Film Co., Ltd. | Silver halide emulsions and photographic materials |
| EP0256781A2 (en) * | 1986-08-07 | 1988-02-24 | Konica Corporation | Silver halide light-sensitive color photographic material suitable for rapid processing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61103149A (en) * | 1984-10-26 | 1986-05-21 | Fuji Photo Film Co Ltd | Preparation of silver halide photographic emulsion |
| JP2522644B2 (en) * | 1986-01-14 | 1996-08-07 | 富士写真フイルム株式会社 | Silver halide photographic material |
| JPS62235939A (en) * | 1986-04-07 | 1987-10-16 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
-
1988
- 1988-08-03 DE DE3826374A patent/DE3826374A1/en not_active Withdrawn
-
1989
- 1989-07-21 DE DE89113416T patent/DE58906367D1/en not_active Expired - Fee Related
- 1989-07-21 AT AT89113416T patent/ATE98385T1/en active
- 1989-07-21 EP EP89113416A patent/EP0361004B1/en not_active Expired - Lifetime
- 1989-07-31 JP JP1197013A patent/JPH02262644A/en active Pending
-
1991
- 1991-01-11 US US07/640,524 patent/US5045444A/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3403825A1 (en) * | 1983-02-04 | 1984-08-16 | Mitsubishi Paper Mills, Ltd., Tokyo | Photographic light-sensitive silver halide materials |
| EP0255721A2 (en) * | 1986-08-05 | 1988-02-10 | Fuji Photo Film Co., Ltd. | Silver halide emulsions and photographic materials |
| EP0256781A2 (en) * | 1986-08-07 | 1988-02-24 | Konica Corporation | Silver halide light-sensitive color photographic material suitable for rapid processing |
Non-Patent Citations (3)
| Title |
|---|
| J.M. EDER et al.: "Sensibilisierung und Desensibilisierung", 3. Auflage, Band 3, Teil 3 des "Ausführliches Handbuch der Photographie", 1932, Verlag W. Knapp, Halle, Saale, DE * |
| PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 229 (P-155)[1107], 16. November 1982; & JP-A-57 132 137 (KONISHIROKU SHASHIN KOGYO K.K.) 16-08-1982 * |
| PHOTOGRAPHISCHE KORRESPONDENZ, Band 98, 1962, Seiten 59-60, Verlag Dr. Othmar Helwich, Darmstadt, Wien, DE; K. POKORNY: "Über den Rhodiumeffekt und andere Probleme moderner Emulsionstechnik" * |
Also Published As
| Publication number | Publication date |
|---|---|
| US5045444A (en) | 1991-09-03 |
| JPH02262644A (en) | 1990-10-25 |
| DE3826374A1 (en) | 1990-02-08 |
| EP0361004B1 (en) | 1993-12-08 |
| ATE98385T1 (en) | 1993-12-15 |
| DE58906367D1 (en) | 1994-01-20 |
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