EP0312892B1 - Matériau photographique - Google Patents

Matériau photographique Download PDF

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Publication number
EP0312892B1
EP0312892B1 EP88116859A EP88116859A EP0312892B1 EP 0312892 B1 EP0312892 B1 EP 0312892B1 EP 88116859 A EP88116859 A EP 88116859A EP 88116859 A EP88116859 A EP 88116859A EP 0312892 B1 EP0312892 B1 EP 0312892B1
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EP
European Patent Office
Prior art keywords
layer
gelatin
layers
compounds
sensitive
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.)
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EP88116859A
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German (de)
English (en)
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EP0312892A2 (fr
EP0312892A3 (en
Inventor
Fritz Dr. Nittel
Wolfgang Dr. Himmelmann
Rudolf Dr. Tromnau
Erich Dr. Müller
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Agfa Gevaert AG
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Agfa Gevaert AG
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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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/81—Photosensitive materials characterised by the base or auxiliary layers characterised by anticoiling means
    • 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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/7614—Cover layers; Backing layers; Base or auxiliary layers characterised by means for lubricating, for rendering anti-abrasive or for preventing adhesion
    • 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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/91—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means
    • 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
    • Y10S430/136—Coating process making radiation sensitive element

Definitions

  • the invention relates to a more rationally producible photographic material with at least one auxiliary layer and at least one light-sensitive emulsion layer.
  • gelatin layer substrate layer
  • the layers are applied after a corona treatment using a doctor blade or roller application system with a wet application of 3 to 8 g / m 2 and dried.
  • the dry application is between 100 and 400 mg / m2.
  • the coating with the gelatin-containing substrate layer is generally combined with PE extrusion and the simultaneous application of an antistatic layer.
  • the substrate layer pouring carried out together with the PE extrusion and corona radiation is carried out at high speed (about 100 to 130 m / min), so that the applied substrate layer is dried so quickly at the low wet application that the gelatin in pure sol form with a melting point of 8 to 12 ° C is present.
  • a special object of the invention was to provide a photographic supervisory material with a substrate layer and at least one photosensitive layer, in which at least the one photosensitive layer can be cast immediately after application and drying of the substrate layer.
  • the task was to provide photographic materials with at least one auxiliary layer and at least one light-sensitive layer, which show improved properties and / or can be produced more efficiently.
  • a special object of the invention was to provide a photographic material with at least one auxiliary layer and at least one light-sensitive emulsion layer, the production of which after application and drying of the auxiliary layer, the remaining layers can be applied directly.
  • the auxiliary layer can be the substrate layer on which the further layers are cast; but it can also be an NC layer, ie a layer applied to the back of the substrate, which is intended to prevent the material from curling (non-curling layer), or the top protective layer, which is applied to the substrate after the photosensitive layers have been applied is applied.
  • NC layer ie a layer applied to the back of the substrate, which is intended to prevent the material from curling (non-curling layer), or the top protective layer, which is applied to the substrate after the photosensitive layers have been applied is applied.
  • the auxiliary layer is preferably the substrate layer, in particular in the case of polyethylene-coated paper.
  • the auxiliary layer contains at least one compound as a binder, which is obtained by reacting a 3- to 6-valent alcohol with propylene oxide (PO).
  • the compounds preferably have an OH content of 7 to 15% by weight, in particular 9.5 to 12.5% by weight (weight of the OH groups based on the total weight of the molecule).
  • this corresponds to a reaction with 4 to 10 mol of propylene oxide, a statistical distribution over the entirety of the molecules being achieved.
  • the number of carbon atoms in the 3- to 6-valent alcohols is preferably 3 to 6.
  • Examples are glycerol, trimethylolpropane, hexanetriols, pentaerythritol and sorbitol.
  • reaction products of the 3- to 6-valent alcohols with propylene oxide are used in particular in combination with gelatin, the weight ratio of the reaction product to gelatin being 0.1-10: 1.
  • the reaction product can also be used as a binder without gelatin.
  • the gelatin can be used in pure form or in combination with other high molecular weight water-soluble substances, e.g. Polyvinylpyrrolidone, copolymers of vinylpyrrolidone and vinyl acetate, the weight ratio of the reaction product to gelatin referring to the sum of gelatin and water-soluble high molecular weight polymer.
  • other high molecular weight water-soluble substances e.g. Polyvinylpyrrolidone, copolymers of vinylpyrrolidone and vinyl acetate, the weight ratio of the reaction product to gelatin referring to the sum of gelatin and water-soluble high molecular weight polymer.
  • the compounds according to the invention can be used as follows:
  • the gelatin used should have a high gel strength (> 200).
  • Anionic compounds are used as wetting agents, preferably those which both are water- and oil-soluble, such as di-2-ethylhexyl sulfosuccinate, dodecylbenzenesulfonate, etc.
  • the compounds according to the invention show no photographic activity. They also have no wetting character.
  • the dry application of the layers described above is preferably between 80 and 500 mg / m2
  • the pH of the gelatin can range from slightly acidic to slightly alkaline.
  • the compounds according to the invention can also be used as binders in gelatin-free substrate layers.
  • Wetting agents are anionic compounds as in 1. in a low concentration (1-2 wt .-% based on substance).
  • the dry application is preferably 50-120 mg / m2, whereby a layer is already obtained at 50 mg / m2, which lowers the specific surface resistance of> 1014 ⁇ / cm with pure PE to 1 x 1010 ⁇ / cm and thus the electrostatic charge of the PE layer and the susceptibility to contamination are considerably reduced.
  • Wet adhesion begins after 3-4 days, similar to the pouring of pure PE.
  • a further improvement in the conductivity of the substrate layer can be achieved by combination with antistatic agents.
  • conductivities of 1 x 109 ⁇ / cm are achieved by combination with polystyrene sulfonic acid or low molecular acrylic acids.
  • These combinations preferably consist of 50-75% by weight of compounds according to the invention and 50-25% by weight of antistatic agents. The optimum amount with regard to further pourability is determined by tests. In contrast, the use of pure antistatic leads to casting errors.
  • Examples of conventional curing agents include activated vinyl compounds such as divinylsulfone, N, N'-ethylene-bis- (vinylsulfonylacetamide), 1,3-bis- (vinylsulfonyl) -2-propanol, methylenebismaleinimide, 5-acetyl-1,3-diacryloyl- hexahydro-S-triazine, 1,3,5-triacryloyl-hexahydro-S-triazine and 1,3,5-triviylsulfonyl-hexahydro-S-triazine; activated halogen compounds such as 2,4-dichloro-6-hydroxy-S-triazine, sodium salt, 2,4-dichloro-6-methoxy-S-triazine, 2,4-dichloro-6- (4-sulfoanilino) -S-triazine , Sodium salt, 2,4-dichloro-6- (2-sulf
  • the concentration of the compounds according to the invention is preferably 0.5 part by weight to 1 part by weight of gelatin.
  • Immediate hardeners are understood to mean compounds which crosslink suitable binders in such a way that the hardening is completed to such an extent immediately after casting, at the latest after 24 hours, preferably at the latest after 8 hours, that no further change in the sensitometry and the swelling of the layer structure occurs as a result of the crosslinking reaction .
  • Swelling is understood to mean the difference between the wet film thickness and the dry film thickness during the aqueous processing of the film (Photogr. Sci. Eng. 8 (1964), 275; Photogr. Sci. Eng. (1972), 449).
  • hardening agents that react very quickly with gelatin are e.g. to carbamoylpyridinium salts, which are able to react with free carboxyl groups of the gelatin, so that the latter react with free amino groups of the gelatin to form peptide bonds and crosslink the gelatin.
  • silver halide grains are used as the light-sensitive material.
  • the light-sensitive layers also contain a binder.
  • the auxiliary layers also contain binders in addition to other products.
  • Gelatin is preferably used as the binder. However, this can be replaced in whole or in part by other synthetic, semi-synthetic or naturally occurring polymers.
  • Synthetic gelatin substitutes are, for example, polyvinyl alcohol, poly-N-vinylpyrolidone, polyacrylamides, polyacrylic acid and their derivatives, in particular their copolymers.
  • Naturally occurring gelatin substitutes are, for example, other proteins such as albumin or casein, cellulose, sugar, starch or alginates.
  • Semi-synthetic gelatin substitutes are usually modified natural products.
  • Cellulose derivatives such as hydroxyalkyl cellulose, carboxymethyl cellulose and phthalyl cellulose as well as gelatin derivatives which have been obtained by reaction with alkylating or acylating agents or by grafting on polymerizable monomers are examples of this.
  • the binders should have a sufficient amount of functional groups so that enough resistant layers can be produced by reaction with suitable hardening agents.
  • functional groups are in particular amino groups, but also carboxyl groups, hydroxyl groups and active methylene groups.
  • the gelatin which is preferably used can be obtained by acidic or alkaline digestion.
  • the preparation of such gelatins is described, for example, in The Science and Technology of Gelatine, edited by AG Ward and A. Courts, Academic Press 1977, page 295 ff.
  • the gelatin used in each case should contain the lowest possible level of photographically active impurities (inert gelatin). High viscosity, low swelling gelatins are particularly advantageous.
  • the silver halide present as a light-sensitive component in the photographic material can contain chloride, bromide or iodide or mixtures thereof as the halide.
  • the halide content of at least one layer can consist of 0 to 15 mol% of iodide, 0 to 100 mol% of chloride and 0 to 100 mol% of bromide. It can be predominantly compact crystals, e.g. are regular cubic or octahedral or can have transitional forms.
  • platelet-shaped crystals may preferably also be present, the average ratio of diameter to thickness of which is preferably less than 8: 1, the diameter of a grain being defined as the diameter of a circle with a circle content corresponding to the projected area of the grain.
  • the layers can also have tabular silver halide crystals in which the ratio of diameter to thickness is greater than 8: 1.
  • the silver halide grains can also have a multi-layered grain structure, in the simplest case with an inner and an outer grain area (core / shell), the halide composition and / or other modifications such as doping of the individual grain areas being different.
  • the average grain size of the emulsions is preferably between 0.2 ⁇ m and 2.0 ⁇ m, the grain size distribution can be both homo- and heterodisperse. Homodisperse grain size distribution means that 95% of the grains do not deviate from the mean grain size by more than ⁇ 30%.
  • the emulsions can also contain organic silver salts, for example silver benzotriazolate or silver behenate.
  • Two or more kinds of silver halide emulsions, which are prepared separately, can be used as a mixture.
  • the photographic emulsions can be prepared using various methods (e.g. P. Glafkides, Chimie et Physique Photographique, Paul Montel, Paris (1967), GF Duffin, Photographic Emulsion Chemistry, The Focal Press, London (1966), VL Zelikman et al, Making and Coating Photographic Emulsion, The Focal Press, London (1966) from soluble silver salts and soluble halides.
  • various methods e.g. P. Glafkides, Chimie et Physique Photographique, Paul Montel, Paris (1967), GF Duffin, Photographic Emulsion Chemistry, The Focal Press, London (1966), VL Zelikman et al, Making and Coating Photographic Emulsion, The Focal Press, London (1966) from soluble silver salts and soluble halides.
  • the halide silver is preferably precipitated in the presence of the binder, for example the gelatin, and can be carried out in the acidic, neutral or alkaline pH range, silver halide complexing agents preferably being additionally used.
  • the latter include, for example, ammonia, thioether, imidazole, ammonium thiocyanate or excess halide.
  • the water-soluble silver salts and the halides are combined either in succession by the single-jet process or simultaneously by the double-jet process or by any combination of the two processes. Dosing with increasing inflow rates is preferred, the "critical" feed rate, at which no new germs are being produced, should not be exceeded.
  • the pAg range can vary within wide limits during the precipitation, preferably the so-called pAg-controlled method is used, in which a certain pAg value is kept constant or a defined pAg profile is traversed during the precipitation.
  • so-called inverse precipitation with an excess of silver ions is also possible.
  • the silver halide crystals can also grow through physical ripening (Ostwald ripening), in the presence of excess halide and / or silver halide complexing agent.
  • the growth of the emulsion grains can even take place predominantly by Ostwald ripening, preferably a fine-grained, so-called Lippmann emulsion, mixed with a less soluble emulsion and redissolved on the latter.
  • Salts or complexes of metals such as Cd, Zn, Pb, Tl, Bi, Ir, Rh, Fe can also be present during the precipitation and / or physical ripening of the silver halide grains.
  • the precipitation can also be carried out in the presence of sensitizing dyes.
  • Complexing agents and / or dyes can be rendered ineffective at any time, e.g. by changing the pH or by an oxidative treatment.
  • the soluble salts are removed from the emulsion, e.g. by pasta and washing, by flakes and washing, by ultrafiltration or by 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.
  • the procedure is e.g. described by H. Frieser "The basics of photographic processes with silver halides" page 675-734, Akademische Verlagsgesellschaft (1968).
  • Chemical sensitization can be carried out with the addition of compounds of sulfur, selenium, tellurium and / or compounds of the metals of subgroup VIII of the periodic table (for example gold, platinum, palladium, iridium).
  • Thiocyanate compounds, surface-active compounds such as thioethers, heterocyclic compounds can also be used Nitrogen compounds (eg imidazoles, azaindenes) or spectral sensitizers (described, for example, by F. Hamer "The Cyanine Dyes and Related Compounds ", 1964, or, Ullmanns Encyclopedia of Technical Chemistry, 4th Edition, Vol. 18, p. 431 ff. And Research Disclosure No. 17643, Section III).
  • a reduction sensitization with the addition of reducing agents can be carried out by hydrogen, by low pAg (eg less than 5) and / or high pH (eg above 8).
  • the photographic emulsions may contain compounds to prevent fogging or to stabilize the photographic function during production, storage or photographic processing.
  • Azaindenes are particularly suitable, preferably tetra- and penta-azaindenes, in particular those which are substituted by hydroxyl or amino groups. Such connections are for example from Birr, Z. Wiss. Phot. 47 (1952), pp. 2-58. Salts of metals such as mercury or cadmium, aromatic sulfonic or sulfinic acids such as benzenesulfinic acid, or nitrogen-containing heterocycles such as nitrobenzimidazole, nitroindazole, (subst.) Benzotriazoles or benzothiazolium salts can also be used as antifoggants.
  • metals such as mercury or cadmium, aromatic sulfonic or sulfinic acids such as benzenesulfinic acid, or nitrogen-containing heterocycles such as nitrobenzimidazole, nitroindazole, (subst.) Benzotriazoles or benzothiazolium salts can also be used as
  • Heterocycles containing mercapto groups are particularly suitable, for example mercaptobenzothiazoles, mercaptobenzimidazoles, mercaptotetrazoles, mercaptothiadiazoles, mercaptopyrimidines, these mercaptoazoles can also contain a water-solubilizing group, for example a carboxyl group or sulfo group.
  • mercaptobenzothiazoles mercaptobenzimidazoles
  • mercaptotetrazoles mercaptothiadiazoles
  • mercaptopyrimidines these mercaptoazoles can also contain a water-solubilizing group, for example a carboxyl group or sulfo group.
  • Other suitable compounds are published in Research Disclosure No. 17643 (1978), Section VI.
  • the stabilizers can be added to the silver halide emulsions before, during or after their ripening.
  • the compounds can also be added to other photographic layers which are assigned to a halogen silver layer.
  • the photographic emulsion layers or other hydrophilic colloid layers of the light-sensitive material produced according to the invention can contain surface-active agents for various purposes, such as coating aids, to prevent electrical charging, to improve the sliding properties, to emulsify the dispersion, to prevent adhesion and to improve the photographic characteristics (eg acceleration of development, high contrast, sensitization etc.).
  • the photographic emulsions can be spectrally sensitized using methine dyes or other dyes.
  • Particularly suitable dyes are cyanine dyes, merocyanine dyes and complex merocyanine dyes.
  • Sensitizers can be dispensed with if the intrinsic sensitivity of the silver halide is sufficient for a certain spectral range, for example the blue sensitivity of silver bromide.
  • Color photographic materials usually contain at least one red-sensitive, green-sensitive and blue-sensitive emulsion layer. These emulsion layers are assigned non-diffusing monomeric or polymeric color couplers, which can be located in the same layer or in a layer adjacent to it. Usually cyan couplers are assigned to the red-sensitive layers, purple couplers to the green-sensitive layers and yellow couplers to the blue-sensitive layers.
  • Color couplers for producing the blue-green partial color image are usually couplers of the phenol or ⁇ -naphthol type; suitable examples of this are known in the literature.
  • Color couplers for producing the yellow partial color field are usually couplers with an open-chain catomethylene grouping, in particular couplers of the ⁇ -acylacetamide type; Suitable examples of this are ⁇ -benzoylacetanilide couplers and ⁇ -pivaloylacetanilide couplers, which are also known from the literature.
  • Color coupler for generating the purple partial color image are usually 5-pyrazolone, indazolone or pyrazoloazole type couplers; Suitable examples of this are described in large numbers in the literature.
  • the color couplers can be 4-equivalent couplers, but also 2-equivalent couplers.
  • the latter are derived from the 4-equivalent couplers in that they contain a substituent in the coupling site which is split off during the coupling.
  • the 2-equivalent couplers include those that are colorless, as well as those that have an intense intrinsic color that disappears when the color is coupled or is replaced by the color of the image dye produced (mask coupler), the white couplers that react with Color developer oxidation products result in essentially colorless products.
  • the 2-equivalent couplers also include those couplers that contain a cleavable residue in the coupling site, which is released upon reaction with color developer oxidation products and thereby either directly or after one or more further groups have been cleaved from the primarily cleaved residue (eg DE-A-27 03-145, DE-A-28 55 697, DE-A-31 05 026, DE-A-33 19 428), a certain desired photographic activity unfolds, for example as a development inhibitor or accelerator.
  • Examples of such 2-equivalent couplers are the known DIR couplers as well as DAR or. FAR coupler.
  • DIR, DAR or FAR couplers Since with DIR, DAR or FAR couplers the effectiveness of the residue released during coupling is mainly desired and the color-forming properties of these couplers are less important, such DIR, DAR or FAR couplers are also suitable, which give essentially colorless products on coupling (DE-A-1 547 640).
  • the cleavable residue can also be a ballast residue, so that upon reaction with color developer oxidation products coupling products are obtained which are diffusible or at least have a weak or restricted mobility (US Pat. No. 4,420,556).
  • High molecular weight color couplers are described, for example, in DE-C-1 297 417, DE-A-24 07 569, DE-A-31 48 125, DE-A-32 17 200, DE-A-33 20 079, DE-A-33 24 932, DE-A-33 31 743, DE-A-33 40 376, EP-A-27 284, US-A-4 080 211.
  • the high molecular weight color couplers are usually produced by polymerizing ethylenically unsaturated monomeric color couplers, but they can also be obtained by polyaddition or polycondensation.
  • the couplers or other compounds can be incorporated into silver halide emulsion layers by first preparing a solution, a dispersion or an emulsion of the compound in question and then adding it to the casting solution for the layer in question. Choosing the right one Solvents or dispersants depend on the solubility of the compound.
  • Hydrophobic compounds can also be introduced into the casting solution using high-boiling solvents, so-called oil formers. Corresponding methods are described for example in US-A-2 322 027, US-A-2 801 170, US-A-2 801 171 and EP-A-0 043 037.
  • oligomers or polymers instead of the high-boiling solvents, oligomers or polymers, so-called polymeric oil formers, can be used.
  • the compounds can also be introduced into the casting solution in the form of loaded latices.
  • anionic water-soluble compounds eg dyes
  • pickling polymers e.g. acrylic acid
  • Suitable oil formers are e.g. Alkyl phthalates, phosphoric acid esters, citric acid esters, benzoic acid esters, alkylamides, fatty acid esters and trimesic acid esters.
  • Color photographic material typically comprises at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one blue-sensitive emulsion layer on a support.
  • the order of these layers can be varied as desired. Couplers which form blue-green, purple and yellow dyes are usually incorporated into the red, green or blue-sensitive emulsion layers. However, different combinations can also be used.
  • Each of the light-sensitive layers can consist of a single layer or can also comprise two or more silver halide emulsion partial layers (DE-C-1 121 470). Red-sensitive silver halide emulsion layers are often arranged closer to the layer support than green-sensitive silver halide emulsion layers and these are in turn closer than blue-sensitive layers, a non-light-sensitive yellow filter layer generally being located between green-sensitive layers and blue-sensitive layers.
  • the non-light-sensitive intermediate layers which are generally arranged between layers of different spectral sensitivity, can contain agents which prevent undesired diffusion of developer oxidation products from one light-sensitive layer into another light-sensitive layer with different spectral sensitization.
  • sub-layers of the same spectral sensitization can differ with regard to their composition, in particular with regard to the type and amount of the silver halide grains.
  • the sub-layer with higher sensitivity will be arranged further away from the support than the sub-layer with lower sensitivity
  • sub-layers of the same spectral sensitization can be adjacent to one another or by other layers, e.g. separated by layers of other spectral sensitization.
  • all highly sensitive and all low-sensitive layers can be combined to form a layer package (DE-A 1 958 709, DE-A 2 530 645, DE-A 2 622 922).
  • the photographic material may further contain compounds absorbing UV light, whiteners, spacers, filter dyes, formalin scavengers and others.
  • Compounds that absorb UV light are intended on the one hand to protect the image dyes from fading by UV-rich daylight and, on the other hand, as filter dyes to absorb the UV light in daylight upon exposure and thus improve the color rendering of a film. Connections of different structures are usually used for the two tasks.
  • Examples are aryl substituted benzotriazole compounds (US-A 3 533 794), 4-thiazolidone compounds (US-A 3 314 794 and 3 352 681), benzophenone compounds (JP-A 2784/71), cinnamic acid ester compounds (US-A 3 705 805 and 3 707) 375), butadiene compounds (US-A 4 045 229) or benzoxazole compounds (US-A 3 700 455).
  • Ultraviolet absorbing couplers such as ⁇ -naphthol type cyan couplers
  • ultraviolet absorbing polymers can also be used. These ultraviolet absorbents can be fixed in a special layer by pickling.
  • Filter dyes suitable for visible light include oxonol dyes, hemioxonol dyes, styrene dyes, merocyanine dyes, cyanine dyes and azo dyes. Of these dyes, oxonol dyes, hemioxonol dyes and merocyanine dyes are used particularly advantageously.
  • Suitable whiteners are described, for example, in Research Disclosure December 1978, page 22 ff, Unit 17 643, Chapter V.
  • binder layers in particular the most distant layer from the support, but also occasionally intermediate layers, especially if they are the most distant layer from the support during manufacture, may contain photographically inert particles of inorganic or organic nature, e.g. as a matting agent or as a spacer (DE-A 3 331 542, DE-A 3 424 893, Research Disclosure December 1978, page 22 ff, Unit 17 643, Chapter XVI).
  • photographically inert particles of inorganic or organic nature e.g. as a matting agent or as a spacer (DE-A 3 331 542, DE-A 3 424 893, Research Disclosure December 1978, page 22 ff, Unit 17 643, Chapter XVI).
  • the average particle diameter of the spacers is in particular in the range from 0.2 to 10 ⁇ m.
  • the spacers are water-insoluble and can be alkali-insoluble or alkali-soluble, the alkali-soluble ones generally being removed from the photographic material in an alkaline development bath.
  • suitable polymers are polymethyl methacrylate, copolymers of acrylic acid and methyl methacrylate and hydroxypropyl methyl cellulose hexahydrophthalate.
  • the materials according to the invention are processed in the usual manner according to the processes recommended for this.
  • the compounds according to the invention are prepared in a customary manner by acidic or alkaline-catalyzed reaction of 3- to 6-valent alcohol and propylene oxide (Ullmann, Encyclopedia of Technical Chemistry, Urban / Schwarzenberg-Verlag 1963, Volume 14, page 49 ff).
  • the method is based on the fact that a gelatin layer with a melting point of> 20 ° C no longer dissolves in water at 20 ° C, while a sol-gelatin no longer rearranges at 20 ° C and dissolves immediately.
  • the gelatin is stained with the Rose Bengal dye.
  • the intensity of the color is a measure of the amount of gel form in the layer.
  • a light-sensitive silver halide emulsion layer containing a yellow coupler, a light sensitive silver halide emulsion layer containing a purple coupler, an intermediate layer containing a UV absorber, a light sensitive silver halide emulsion containing a cyan coupler and a hardening agent emulsion layer are coated on a polyethylene-coated paper provided with a substrate layer Protective layer cast.
  • Machine speed 115 m / min Wet application (roller system): 3.0 g / m2 Dry application: 80 - 300 mg / m2; depending on the recipe Drying time: 3.5-7 sec Dryer: 7 m drying section Air volume: 25,000 m3 / h Air speed: approx. 50 m / sec Good temperature: 45-60 ° C Casting temperature: 40 ° C
  • the compounds according to the invention are mixed with gentle stirring with a 10% strength by weight solution of the surfactant bis (2-ethylhexyl) sulfosuccinate and then added to the demineralized water.
  • the gelatin is introduced in solid form, swollen at 20 ° C. for 20 minutes and then dissolved at 40 ° C. Then isopropanol and the curing agent are added.
  • the solutions are poured onto layers of polyethylene which were previously exposed to corona radiation.
  • test grid shows the results at defined drying temperatures.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Claims (7)

  1. Matériau photographique portant au moins une couche auxiliaire et au moins une couche d'émulsion photosensible, caractérisé en ce que la couche auxiliaire contient au moins un composé qui a été obtenu par réaction avec l'oxyde de propylène d'un alcool trivalent à hexavalent.
  2. Matériau photographique suivant la revendication 1, caractérisé en ce que les produits de réaction ont une teneur en OH de 7 à 15 % en poids.
  3. Matériau photographique suivant la revendication 1, caractérisé en ce que les produits de réaction ont une teneur en OH de 9,5 à 12,5 % en poids.
  4. Matériau photographique suivant la revendication 1, caractérisé en ce que les alcools trivalents à hexavalents contiennent 3 à 6 atomes de carbone.
  5. Matériau photographique suivant la revendication 1, caractérisé en ce que les produits de réaction sont utilisés conjointement avec de la gélatine dans un rapport en poids de 0,1-10:1.
  6. Matériau photographique suivant la revendication 5, caractérisé en ce que la gélatine est en partie remplacée par d'autres polymères hydrosolubles de haut poids moléculaire.
  7. Papier revêtu de polyéthylène comprenant une couche-substrat et au moins une couche photosensible d'émulsion à l'halogénure d'argent, caractérisé en ce que la couche-substrat contient au moins un composé qui a été obtenu par réaction avec l'oxyde de propylène d'un alcool trivalent à hexavalent.
EP88116859A 1987-10-21 1988-10-11 Matériau photographique Expired - Lifetime EP0312892B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873735586 DE3735586A1 (de) 1987-10-21 1987-10-21 Fotografisches material
DE3735586 1987-10-21

Publications (3)

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EP0312892A2 EP0312892A2 (fr) 1989-04-26
EP0312892A3 EP0312892A3 (en) 1990-05-16
EP0312892B1 true EP0312892B1 (fr) 1993-02-24

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Application Number Title Priority Date Filing Date
EP88116859A Expired - Lifetime EP0312892B1 (fr) 1987-10-21 1988-10-11 Matériau photographique

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US (1) US4906560A (fr)
EP (1) EP0312892B1 (fr)
JP (1) JPH01136145A (fr)
DE (2) DE3735586A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938914A1 (de) * 1989-11-24 1991-05-29 Agfa Gevaert Ag Fotografisches material
GB9211812D0 (en) * 1992-06-04 1992-07-15 Kodak Ltd Photographic high contrast silver halide materials

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2041323A1 (de) * 1970-08-20 1972-02-24 Agfa Gevaert Ag Photographische gelatinehaltige Schichten mit verbesserten physikalischen Eigenschaften
GB1581870A (en) * 1977-06-24 1980-12-31 Ciba Geigy Ag Photographic film base
DE2759100A1 (de) * 1977-12-30 1979-07-05 Agfa Gevaert Ag Verfahren zur haertung farbphotographischer silberhalogenidemulsionsschichten
JPS5875151A (ja) * 1981-10-29 1983-05-06 Fuji Photo Film Co Ltd 写真印画紙用樹脂コ−テイング紙の製造方法
JPH0610739B2 (ja) * 1985-04-12 1994-02-09 富士写真フイルム株式会社 写真印画紙用支持体およびその製法
JP2540307B2 (ja) * 1986-07-18 1996-10-02 コニカ株式会社 巻ぐせカ−ルの改良されたハロゲン化銀写真印画紙
DE3714600A1 (de) * 1986-12-13 1988-06-23 Agfa Gevaert Ag Fotografisches aufzeichnungsmaterial

Also Published As

Publication number Publication date
DE3735586A1 (de) 1989-05-11
EP0312892A2 (fr) 1989-04-26
DE3878635D1 (de) 1993-04-01
US4906560A (en) 1990-03-06
JPH01136145A (ja) 1989-05-29
EP0312892A3 (en) 1990-05-16

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