EP0361004B1 - Matériau d'enregistrement photographique avec gradation demi-teinte pour traitement plein-jour - Google Patents

Matériau d'enregistrement photographique avec gradation demi-teinte pour traitement plein-jour Download PDF

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Publication number
EP0361004B1
EP0361004B1 EP89113416A EP89113416A EP0361004B1 EP 0361004 B1 EP0361004 B1 EP 0361004B1 EP 89113416 A EP89113416 A EP 89113416A EP 89113416 A EP89113416 A EP 89113416A EP 0361004 B1 EP0361004 B1 EP 0361004B1
Authority
EP
European Patent Office
Prior art keywords
silver
silver halide
mol
recording material
halide emulsion
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 - Lifetime
Application number
EP89113416A
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German (de)
English (en)
Other versions
EP0361004A1 (fr
Inventor
Wilfried Dr. Bahnmüller
Jutta Dipl.-Ing. Finkener
Dieter Dr. Himmelreich
Wolfgang Dipl.-Ing. Reiber
Heinz Dipl.-Ing. Schwarz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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Filing date
Publication date
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Priority to AT89113416T priority Critical patent/ATE98385T1/de
Publication of EP0361004A1 publication Critical patent/EP0361004A1/fr
Application granted granted Critical
Publication of EP0361004B1 publication Critical patent/EP0361004B1/fr
Anticipated expiration legal-status Critical
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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

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.
  • EP-A-0 255 721 describes emulsions with silver halide grains consisting predominantly of silver chloride, which carry growths on [100] surfaces in the presence of certain compounds which influence the crystal form.
  • DE-A-34 03 825 relates to a (low-sensitivity) photographic material which can be used in room lighting and has a silver halide emulsion which has an average grain size of 0.1-0.3 ⁇ m and a silver chloride content of 80 mol% or more and contains a certain desensitizer . The material has a high contrast.
  • 1-phenyl-5-mercaptotetrazole is used as reference compound A. The description does not show that this compound was already present during the precipitation of the silver halide.
  • the invention relates to a photographic recording material which 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, has a grain size of less than 0.1 ⁇ m and in the presence of a 1- Phenyl-5-mercaptotetrazole has been prepared.
  • 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 at least 75 mol%, preferably at least 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 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 which 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.
  • the 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 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.
  • 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.
  • 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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  • 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)
  • Credit Cards Or The Like (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Claims (7)

  1. Matériau d'enregistrement photographique pouvant être traité à la lumière du jour, comprenant au moins une couche d'émulsion d'halogénure d'argent appliquée sur un support de couches, caractérisé en ce que l'halogénure d'argent consiste pour au moins 75 mol% en chlorure d'argent, il a une dimension de grain inférieure à 0,1 µm et il a été préparé en présence d'un 1-phényl-5-mercaptotétrazole.
  2. Matériau d'enregistrement selon la revendication 1, caractérisé en ce que l'émulsion d'halogénure d'argent n'est pas soumise à maturation chimique.
  3. Matériau d'enregistrement selon la revendication 1, caractérisé en ce que l'émulsion d'halogénure d'argent contient de 0 à 25 mol% de bromure d'argent et/ou de 0 à 10 mol% d'iodure d'argent.
  4. Matériau d'enregistrement selon la revendication 1, caractérisé en ce que l'émulsion d'halogénure d'argent a été préparée en présence de 0,5 à 50 mmol d'un 1-phényl-5-mercaptotétrazole pour 1 mol du nitrate d'argent utilisé au total à la précipitation.
  5. Matériau d'enregistrement selon la revendication 1, caractérisé en ce que l'émulsion d'halogénure d'argent contient de 10 à 200 mg de jaune de pinacryptol par mole d'argent.
  6. Matériau d'enregistrement selon les revendications 1 à 5, caractérisé en ce que l'émulsion d'halogénure d'argent contient de 1 à 100 mg d'hexachlororhodiate-III de sodium par mole d'argent.
  7. Matériau d'enregistrement selon la revendication 1, caractérisé en ce que l'émulsion d'halogénure d'argent contient de 10 à 250 mg d'un sensibilisant spectral par mole d'halogénure d'argent.
EP89113416A 1988-08-03 1989-07-21 Matériau d'enregistrement photographique avec gradation demi-teinte pour traitement plein-jour Expired - Lifetime EP0361004B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89113416T ATE98385T1 (de) 1988-08-03 1989-07-21 Fotografisches, bei tageslicht verarbeitbares aufzeichnungsmaterial mit halbtongradation.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3826374 1988-08-03
DE3826374A DE3826374A1 (de) 1988-08-03 1988-08-03 Fotografisches, bei tageslicht verarbeitbares aufzeichnungsmaterial mit halbtongradation

Publications (2)

Publication Number Publication Date
EP0361004A1 EP0361004A1 (fr) 1990-04-04
EP0361004B1 true EP0361004B1 (fr) 1993-12-08

Family

ID=6360165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113416A Expired - Lifetime EP0361004B1 (fr) 1988-08-03 1989-07-21 Matériau d'enregistrement photographique avec gradation demi-teinte pour traitement plein-jour

Country Status (5)

Country Link
US (1) US5045444A (fr)
EP (1) EP0361004B1 (fr)
JP (1) JPH02262644A (fr)
AT (1) ATE98385T1 (fr)
DE (2) DE3826374A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3403825A1 (de) * 1983-02-04 1984-08-16 Mitsubishi Paper Mills, Ltd., Tokyo Fotografische, fotoempfindliche silberhalogenidmaterialien
JPS61103149A (ja) * 1984-10-26 1986-05-21 Fuji Photo Film Co Ltd ハロゲン化銀写真乳剤の製造方法
JP2522644B2 (ja) * 1986-01-14 1996-08-07 富士写真フイルム株式会社 ハロゲン化銀写真感光材料
JPS62235939A (ja) * 1986-04-07 1987-10-16 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料
JPS6338930A (ja) * 1986-08-05 1988-02-19 Fuji Photo Film Co Ltd ハロゲン化銀乳剤および写真感光材料
JPH07119976B2 (ja) * 1986-08-07 1995-12-20 コニカ株式会社 迅速処理可能でカブリ防止効果等にすぐれるハロゲン化銀カラ−写真感光材料

Also Published As

Publication number Publication date
EP0361004A1 (fr) 1990-04-04
US5045444A (en) 1991-09-03
ATE98385T1 (de) 1993-12-15
DE58906367D1 (de) 1994-01-20
DE3826374A1 (de) 1990-02-08
JPH02262644A (ja) 1990-10-25

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