EP0395785A1 - Support for light-sensitive materials with an anti-curling layer coated on the backside - Google Patents

Support for light-sensitive materials with an anti-curling layer coated on the backside Download PDF

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Publication number
EP0395785A1
EP0395785A1 EP89108096A EP89108096A EP0395785A1 EP 0395785 A1 EP0395785 A1 EP 0395785A1 EP 89108096 A EP89108096 A EP 89108096A EP 89108096 A EP89108096 A EP 89108096A EP 0395785 A1 EP0395785 A1 EP 0395785A1
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EP
European Patent Office
Prior art keywords
weight
solution
layer
roll
triazine
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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.)
Granted
Application number
EP89108096A
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German (de)
French (fr)
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EP0395785B1 (en
Inventor
Horst Dipl.-Ing. Westfal
Andreas Diekmann
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Felex Schoeller Jr and GmbH and Co KG
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Felex Schoeller Jr and GmbH and Co KG
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Application filed by Felex Schoeller Jr and GmbH and Co KG filed Critical Felex Schoeller Jr and GmbH and Co KG
Priority to AT89108096T priority Critical patent/ATE118622T1/en
Priority to EP89108096A priority patent/EP0395785B1/en
Priority to DE58909012T priority patent/DE58909012D1/en
Priority to US07/510,303 priority patent/US5100769A/en
Priority to JP2111570A priority patent/JPH0812396B2/en
Priority to CN90102695.6A priority patent/CN1029428C/en
Publication of EP0395785A1 publication Critical patent/EP0395785A1/en
Application granted granted Critical
Publication of EP0395785B1 publication Critical patent/EP0395785B1/en
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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
    • G03C1/7614—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
    • G03C1/005—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
    • G03C1/30—Hardeners
    • 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
    • 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
    • Y10S430/131—Anticurl layer

Definitions

  • the invention relates to a method for producing a layer support for light-sensitive materials with an anti-roll layer on the back.
  • Gelatin layers are usually hardened using suitable hardening agents. the hardening agents crosslink the gelatin molecules with one another and thereby bring about a reduction in the water absorption or swellability of the layer, an increase in the melting point and an improvement in the mechanical strength of the gelatin layer.
  • Hardened gelatin layers are, above all, resistant to photographic treatment baths.
  • the light-sensitive gelatin-containing layers on the front of the carrier material are usually opposite gelatin-containing layers on the back of the carrier material.
  • the swelling behavior in the photographic treatment baths and the behavior of the layers during subsequent drying should be kept as identical as possible, so that the material maintains a good flatness during the entire working process and during later use.
  • the layers applied to the back are therefore called anti-roll, anti-curl or non-curling layers. Their layer thickness depends on the swelling behavior and the layer thickness of the front coating.
  • the anti-roll layers usually also contain various additives. These can be: wetting agents such as saponin, matting agents such as silica, plasticizers such as glycerin, organic acids such as citric acid, small amounts of other water-soluble high polymer compounds such as polyvinyl alcohol or antistatic agents such as sodium nitrate.
  • wetting agents such as saponin
  • matting agents such as silica
  • plasticizers such as glycerin
  • organic acids such as citric acid
  • small amounts of other water-soluble high polymer compounds such as polyvinyl alcohol or antistatic agents such as sodium nitrate.
  • the resistance of the anti-roll layers to the photographic treatment baths is achieved by hardening the gelatin with so-called hardening agents.
  • Known hardening agents for gelatin include chromium (III) salts, aldehydes, N-methylol compounds, dialdehyde polysaccharides, polyfunctional epoxides, aziridines, polyfunctional vinyl compounds, triacryl formal, substituted dichloro-s-triazines and others in Chap. 2 of the book "The Theory of the Photographic Process” by T.H. Substances described by James (London, 1977).
  • the hardening agents are either added to the gelatin-containing solutions before processing or they are applied as a separate solution to the gelatin layer already on a support. In the second case, the hardening agents diffuse into the gelatin layer, where they react with the petid chains.
  • Both methods can also be combined with one another in such a way that part of the hardening agent is added to the gelatin solution and another part is subsequently applied to the layer.
  • Each hardening agent known hitherto has one or the other disadvantage and does not have the wide range of possible uses, as is particularly desirable in the case of auxiliary gelatin layers which are applied to a support prior to emulsionation and are later in contact with the actual photographic layers.
  • DE-A-3 721 808 describes rapid curing by applying two successive coatings, the second upper coating being formed from a curing agent solution of chromium salts.
  • EP-A-303 789 has further described the synergistic effect of a premix hardener of 1,2,3-triazine and formaldehyde.
  • This premixing achieves faster and better gelatin hardening than the addition of the individual components without premixing.
  • the hardening reaction is accelerated by adding urea.
  • this recipe led to photographic fog in color emulsions.
  • this new hardening agent combination it was not possible to achieve an anti-roll coating with the required low water absorption capacity. This did not succeed even when additional aliphatic polyhydric alcohols were added to the anti-roll solution.
  • Another object of the invention is to provide a support for photosensitive materials, the anti-roll layer applied on the back has a water absorption capacity of less than 2.5 g H2O per 1 g protein, measured after 10 minutes of distilled water at 22 ° C. .
  • the ratio of the triazine-formaldehyde premix to the N-methylol compound is 1: 2.5 to 1:10.
  • the amount of total curing agent (triazine-formaldehyde premix and N-methylolo compound) is 3-6 g / 100 g protein.
  • the amount of aliphatic polyhydric alcohol is 30-50 g / 100 g protein.
  • the anti-roll layer solution can contain all other usual additives such as matting agents (e.g. silica), antistatic agents (e.g. inorganic salts), optical brighteners (e.g. stilbene derivatives), wetting agents (e.g. saponin) and the like.
  • matting agents e.g. silica
  • antistatic agents e.g. inorganic salts
  • optical brighteners e.g. stilbene derivatives
  • wetting agents e.g. saponin
  • the anti-roll layer solution can be applied with all customary application and metering methods, such as roller application, engraving or nipping methods, with subsequent air brush or roller doctor metering if necessary.
  • the anti-roll layer solution applied to the back of the support is dried directly from the sol mold, that is to say without prior gelation of the solution.
  • TAF 1,3,5-triacrylloyl-hexahydro-s-triazine
  • the anti-roll layer solution was applied to the back of the polyethylene-coated support by means of a roller application device and knife metering and dried out of the sol mold in a hot air duct at an air temperature of 130 ° C.
  • the application weight after drying was 4.2 g / m2.
  • the web speed was 130 m / min.
  • a layer support consisting of 180 g / m2 paper and a layer of 35 g / m2 polyethylene on the front and 28 g / m2 polyethylene on the back was coated with the following anti-roll solution: water 54% by weight gelatin 8% by weight Sodium nitrate 10% solution. 7% by weight Silica (Gasil 644) 20% solution. 13% by weight Wetting agent (Saponin Q) 5% solution. 1% by weight TAF * / formaldehyde (1: 0.5) 2% solution. 2% by weight Trimethylol urea 5% solution. 8% by weight Polyethylene glycol (MG 400) 50% solution. 7% by weight * TAF 1,3,5-triacrylloyl-hexahydro-s-triazine
  • the anti-roll solution was applied with an air brush to the back of the polyethylene-coated support, gelled in a cooling zone at 8 ° C air temperature and dried in two stages at air temperatures of 32 ° C and 60 ° C.
  • the web speed was 130 m / min, the application weight after drying was 5.0 g / m2.
  • the anti-roll layer solution was applied to the back of the polyethylene-coated carrier by means of a roller application device and knife metering and dried out of the sol mold in a hot air duct at an air temperature of 130 ° C.
  • the application weight after drying was 3.7 g / m2.
  • the web speed was 130 m / min.
  • a layer support according to Example 1 was coated with the following anti-roll layer solutions: gelatin 8% by weight Sodium nitrate 10% solution. 7% by weight Silica (Gasil 644) 20% solution. 13% by weight Wetting agent (Saponin Q) 5% solution. 1% by weight
  • TAF * 1,3,5-triacryloyl-hexahydro-s-triazine
  • FA * formaldehyde
  • DMH * dimethylol urea
  • EG * ethylene glycol
  • 4000 polyethylene glycol with a molecular weight of approx. 4000
  • the anti-roll layer solution was applied to the back of the polyethylene-coated support by means of a roller application device and knife metering and dried out of the sol mold in a hot air duct at an air temperature of 130 ° C.
  • the application weight after drying was 4.0 ⁇ 0.1 g / m2.
  • the web speed was 130 m / min.
  • V 2a A layer support according to Example 1 was coated with the following anti-roll layer solution, which corresponds to the recipe from Example 1 of DE-A-37 21 808: water 84.75% by weight gelatin 12% by weight Sodium nitrate 1% by weight Silica 1% by weight Glycerin 1% by weight Wetting agent 0.1% by weight Citric acid 0.02% by weight Chrome alum 0.1% by weight Triacrylolylhexahydrotriazine 0.03% by weight Sodium hydroxide solution up to pH 6.6
  • This coating which was applied to the back by means of an application device in accordance with Example 1, was dried in a hot air duct at an air temperature of 130 ° C., the application weight was 5.0 g / m 2.
  • This second coating which was applied to the back by means of an application device in accordance with Example 1, was dried in a hot air duct at an air temperature of 130.degree.
  • the application weight was 320 mg / m2
  • the web speed for both jobs was 100 m / min.
  • V 2b A layer support according to Example 1 was coated with the following anti-roll layer solution, which is based on recipes 1 and 3 f from DE-A-37 27 293: water 66.1% by weight gelatin 7% by weight Sodium nitrate 10% solution. 7% by weight Silica 20% solution. 12.5% by weight Wetting agent 5% solution. 1% by weight TAF / formaldehyde (1: 0.5) 2% solution. 3% by weight urea 2% solution. 0.4% by weight Ethylene glycol 3% by weight
  • the anti-roll layer solution was applied to the back of the polyethylene-coated support by means of the application device from Example 1 and dried out of the sol mold in a hot air duct at an air temperature of 130 ° C.
  • the web speed was 100 m / min, the application weight after drying was 4.0 g / m2.
  • test strip is immersed in distilled water at 22 ° C for 10 minutes and then dried.
  • the test strip is weighed before and after drying. The difference in weight is based on the amount of gelatin that this sample strip has.
  • the amount of gelatin was calculated from the recipe, application weight and sample size. The water absorption is given in g water / 1 g gelatin.

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Paper (AREA)

Abstract

A waterproof support for light-sensitive materials with an anti-curling layer applied to the back is described. The anti-curling layer is composed of at least a) a protein binder, b) a reaction product of triazine and formaldehyde, c) an N-methylol compound and d) an aliphatic polyhydric alcohol.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Schichtträgers für lichtempfindliche Materialien mit einer Antirollschicht auf der Rückseite.The invention relates to a method for producing a layer support for light-sensitive materials with an anti-roll layer on the back.

Bei den meisten fotografischen Materialien wird Gela­tine zum Aufbau der Silberhalogenidemulsionen, der Schutzschichten und der Rückseitenschichten verwendet. Gelatineschichten quellen jedoch mit Wasser und haben im gequollenen Zustand geringe mechanische Festigkeit. Deshalb werden sie üblicherweise durch geeignete Här­tungsmittel gehärtet. die Härtungsmittel vernetzen die Gelatinemoleküle miteinander und bewirken dadurch eine Verminderung der Wasseraufnahme bzw. Quellfähig­keit der Schicht, eine Erhöhung des Abschmelzpunktes und eine Verbesserung der mechanischen Festigkeit der Gelatineschicht. Gehärtete Gelatineschichten sind vor allem restitent gegenüber den fotografischen Behand­lungsbädern.Most photographic materials use gelatin to build up the silver halide emulsions, protective layers and backing layers. Gelatin layers, however, swell with water and have little mechanical strength when swollen. For this reason, they are usually hardened using suitable hardening agents. the hardening agents crosslink the gelatin molecules with one another and thereby bring about a reduction in the water absorption or swellability of the layer, an increase in the melting point and an improvement in the mechanical strength of the gelatin layer. Hardened gelatin layers are, above all, resistant to photographic treatment baths.

Den lichtempfindlichen gelatinehaltigen Schichten auf der Vorderseite des Trägermaterials liegens meistens gelatinehaltige Schichten auf der Rückseite des Trä­germaterials gegenüber. Durch Einsatz des gleichen Bindemittels Gelatine auf beiden Seiten des Träger­materials soll das Quellverhalten in den fotogra­fischen Behandlungsbädern und das Verhalten der Schich­ten bei anschließender Trocknung möglichst identisch gehalten werden, so daß während des gesamten Arbeits­prozesses sowie bei der späteren Verwendung das Mate­rial eine gute Planlage beibehält.The light-sensitive gelatin-containing layers on the front of the carrier material are usually opposite gelatin-containing layers on the back of the carrier material. By using the same gelatin binder on both sides of the carrier material, the swelling behavior in the photographic treatment baths and the behavior of the layers during subsequent drying should be kept as identical as possible, so that the material maintains a good flatness during the entire working process and during later use.

Die auf die Rückseite aufgebrachten Schichten werden deshalb als Antiroll-, Anticurl- oder Noncurling- Schichten bezeichnet. Ihre Schichtdicke hängt vom Quellverhalten und von der Schichtdicke der Vorder­seitenbeschichtung ab.The layers applied to the back are therefore called anti-roll, anti-curl or non-curling layers. Their layer thickness depends on the swelling behavior and the layer thickness of the front coating.

Üblicherweise enthalten die Antirollschichten noch verschiedene Zusatzstoffe. Diese können sein: Netz­mittel wie Saponin, Mattierungsmittel wie Kieselsäure, Weichmacher wie Glycerin, organische Säuren wie Citro­nensäure, kleine Mengen anderer wasserlöslicher hoch­polymerer Verbindungen wie Polyvinylalkohol oder Anti­statika wie Natriumnitrat.The anti-roll layers usually also contain various additives. These can be: wetting agents such as saponin, matting agents such as silica, plasticizers such as glycerin, organic acids such as citric acid, small amounts of other water-soluble high polymer compounds such as polyvinyl alcohol or antistatic agents such as sodium nitrate.

Die Resistenz der Antirollschichten gegenüber den fotografischen Behandlungsbädern wird erreicht durch Härtung der Gelatine mit sogenannten Härtungsmitteln.The resistance of the anti-roll layers to the photographic treatment baths is achieved by hardening the gelatin with so-called hardening agents.

Zu den bekannten Härtungsmitteln für Gelatine gehören Chrom(III)-salze, Aldehyde, N-Methylolverbindungen, Dialdehydpolysaccharide, polyfunktionelle Epoxide, Aziridine, polyfunktionelle Vinylverbindungen, Tri­acrylformal, substituierte Dichlor-s-Triazine und andere in Kap. 2 des Buches "The Theory of the Pho­tographic Process" von T.H. James (London, 1977) be­schriebene Substanzen.Known hardening agents for gelatin include chromium (III) salts, aldehydes, N-methylol compounds, dialdehyde polysaccharides, polyfunctional epoxides, aziridines, polyfunctional vinyl compounds, triacryl formal, substituted dichloro-s-triazines and others in Chap. 2 of the book "The Theory of the Photographic Process" by T.H. Substances described by James (London, 1977).

Die Härtungsmittel werden entweder den gelatinehal­tigen Lösungen vor der Verarbeitung zugesetzt oder sie werden als gesonderte Lösung auf die bereits auf einem Träger befindliche Gelatineschicht aufgetragen. Im zweiten Fall diffundieren die Härtungsmittel in die Gelatineschicht, wo sie mit den Petidketten in Reaktion treten.The hardening agents are either added to the gelatin-containing solutions before processing or they are applied as a separate solution to the gelatin layer already on a support. In the second case, the hardening agents diffuse into the gelatin layer, where they react with the petid chains.

Beide Verfahren können auch in der Weise miteinander kombiniert werden, daß ein Teil des Härtungsmittels der Gelatinelösung zugesetzt und ein anderer Teil nachträglich auf die Schicht gebracht wird.Both methods can also be combined with one another in such a way that part of the hardening agent is added to the gelatin solution and another part is subsequently applied to the layer.

Alle als Härtungsmittel gebräuchlichen Substanzen ha­ben ein bevorzugtes Verwendungsgebiet und sind für andere Anwendungen nicht optimal, d.h. mit einem oder mehreren Nachteilen behaftet. Aliphatische Alde­hyde und Diketone eignen sich nicht für farbfotogra­fische Schichten, weil sie mit üblichen Farbkupplern oder anderen Emulsionszusätzen in Reaktion treten können. Polyepoxide, Triazine und Polysaccharide eig­nen sich zwar gut für farbfotografische Schichten, reagieren aber sehr langsam und sind deshalb nicht für Gelatineschichten geeignet, die kurz nach Trock­nung der Schicht mechanisch beansprucht werden. Andere Härtungsmittel, z.B. Chromsalze, sind so re­aktionsfähig, daß eine damit versetzte Gelatinelösung bereits während der Verarbeitung einen Viskositäts­anstieg zeigt. Wieder andere Härtungsmittel sind nicht ausreichend diffusionsfest und verändern den Härtungszustand benachbarter Schichten während der Lagerung.All substances used as hardening agents have a preferred area of use and are not optimal for other applications, i.e. suffers from one or more disadvantages. Aliphatic aldehydes and diketones are not suitable for color photographic layers because they can react with conventional color couplers or other emulsion additives. Although polyepoxides, triazines and polysaccharides are well suited for color photographic layers, they react very slowly and are therefore not suitable for gelatin layers which are mechanically stressed shortly after the layer has dried. Other curing agents, e.g. Chromium salts are so reactive that a gelatin solution mixed with them shows an increase in viscosity during processing. Still other hardening agents are not sufficiently resistant to diffusion and change the hardening state of adjacent layers during storage.

Jedes bisher bekannte Härtungsmittel hat also den einen oder anderen Nachteil und besitzt nicht die breite Anwendungsmöglichkeit, wie sie vor allem bei Gelatinehilfsschichten erwünscht ist, die vor der Emulsionierung auf einem Träger aufgebracht werden und später mit den eigentlichen fotogra­fischen Schichten in Kontakt sind.Each hardening agent known hitherto has one or the other disadvantage and does not have the wide range of possible uses, as is particularly desirable in the case of auxiliary gelatin layers which are applied to a support prior to emulsionation and are later in contact with the actual photographic layers.

Hauptnachteil ist jedoch, daß die Reaktion der meisten Härtungsmittel mit Gelatine zu langsam erfolgt und vielfach erst nach Tagen oder Wochen der Zwischenlage­rung eine weitere Verarbeitung des beschichteten Materials möglich ist.The main disadvantage, however, is that the reaction of most hardeners with gelatin is too slow and further processing of the coated material is often only possible after days or weeks of intermediate storage.

Die DE-A-3 721 808 beschreibt eine schnelle Härtung durch das Auftragen zweier nacheinander erfolgender Beschichtungen, wobei die zweite obere Beschichtung aus einer Härtungsmittellösung von Chromsalzen ge­bildet wird.DE-A-3 721 808 describes rapid curing by applying two successive coatings, the second upper coating being formed from a curing agent solution of chromium salts.

Diese Offenlegungschrift beschreibt auch aus welchem Grund das Wasseraufnahmevermögen von Antirollschich­ten geringer sein sollte als das von lichtempfind­lichen Emulsionsschichten. Das Wasseraufnahmevermögen der gehärteten Antirollschichten wird in der DE-A-­3 721 808 durch gravimetrische Bestimmung eines Probe­streifens nach 10 Minuten Behandlung in destilliertem Wasser von 22°C mit anschließender Trocknung ermittelt.This publication also describes the reason why the water absorption capacity of anti-roll layers should be lower than that of light-sensitive emulsion layers. The water absorption capacity of the hardened anti-roll layers is determined in DE-A-3 721 808 by gravimetric determination of a test strip after 10 minutes of treatment in distilled water at 22 ° C. with subsequent drying.

Die angestrebte Wasseraufnahme von weniger als 2,5 g H₂O pro 1 g Gelatine wird gemäß der Offen­legungsschrift nur durch die separat aufgetragene Chrom(III)- salzhaltige Härtungsmittelschicht er­reicht. Das hat zur Folge, daß die Rückseite des lichtempfindlichen Schichtträgers je nach Menge und Schichtdicke der Anticurlschicht stets eine uner­wünschte schwach grüne Verfärbung aufweist.The desired water absorption of less than 2.5 g H₂O per 1 g gelatin is achieved according to the published patent only by the separately applied chromium (III) - salt-containing hardening agent layer. The result of this is that the back of the light-sensitive substrate always has an undesirable pale green discoloration, depending on the amount and layer thickness of the anti-curl layer.

Außerdem ist ein Auftrag von zwei Schichten aufwen­diger und störanfälliger als das Auftragen von nur einer Schicht.Applying two coats is also more complex and prone to failure than applying just one coat.

Die Härtung von proteinhaltigen Bindemitteln, insbe­sondere von Gelatine mit den bekannten Härtungsmit­teln bzw. mit verschiedenen Kombinationen von Här­tungsmitteln ist Stand der Technik, wenn es sich um die üblichen Anforderungen von Emulsions- und Hilfs- schichten handelt. Es ist jedoch kein einstufiges Verfahren zur Herstellung von Antirollschichten mit einer Wasseraufnahme von weniger als 2,5 g H₂O pro 1 g Gelatine und ohne Verwendung von Chrom(III)-Salzen be­kannt.The hardening of protein-containing binders, in particular gelatin, with the known hardening agents or with various combinations of hardening agents is state of the art when it comes to the usual requirements of emulsion and auxiliary layers. However, no one-step process for the production of anti-roll layers with a water absorption of less than 2.5 g H₂O per 1 g gelatin and without the use of chromium (III) salts is known.

In der EP-A-303 789 ist weiterhin der synergistische Effekt einer Härtungsmittel-Vormischung aus 1,2,3-Tri­azin und Formaldehyd beschrieben worden. Diese Vor­mischung erreicht schnellere und bessere Gelatine­härtung als die Zugabe der Einzelkomponenten ohne Vormischung. In Beispiel 3 dieser Patentanmeldung wird die Härtungsraktion durch Zusatz von Harnstoff noch beschleunigt. Alerdings führte diese Rezeptur zu fotografischem Schleier bei Coloremulsionen. Aber auch mit dieser neuen Härtungsmittelkombination war es nicht möglich, eine Antirollschicht mit dem ge­forderten geringen Wasseraufnahmevermögen zu errei­chen. Das gelang auch dann nicht, wenn zusätzlich aliphatische mehrwertige Alkohole zur Antirollschicht­lösung zugemischt wurden.EP-A-303 789 has further described the synergistic effect of a premix hardener of 1,2,3-triazine and formaldehyde. This premixing achieves faster and better gelatin hardening than the addition of the individual components without premixing. In Example 3 of this patent application, the hardening reaction is accelerated by adding urea. However, this recipe led to photographic fog in color emulsions. But even with this new hardening agent combination it was not possible to achieve an anti-roll coating with the required low water absorption capacity. This did not succeed even when additional aliphatic polyhydric alcohols were added to the anti-roll solution.

Es ist deshalb Aufgabe der Erfindung, ein Verfahren zur Herstellung von Schichtträgern für lichtempfind­liche Materialien mit einer proteinhaltigen Anti­rollschicht auf der Rückseite des Schichtträgers vorzuschlagen, mit dem Wasseraufnahmen der gehärte­ten Antirollschicht unter 2,5 g H₂O pro 1 g Protein, gemessen nach 10 Minuten Einwirkzeit von destilliertem Waser von 22°C, in einem Arbeitsgang und ohne uner­wünschte Verfärbung der Antirollschicht erhalten werden.It is therefore an object of the invention to propose a process for the production of supports for light-sensitive materials with a protein-containing anti-roll layer on the back of the support, with which water absorption of the hardened anti-roll layer under 2.5 g H₂O per 1 g protein, measured after 10 minutes of distilled water exposure at 22 ° C, in one operation and without undesired discoloration of the anti-roll layer.

Weiterhin ist es Aufgabe der Erfindung, das Verfah­ren zur Herstellung dieses Schichtträgers für licht­empfindliche Materialien so zu gestalten, daß ein schleierarmes fotografisches Material entsteht.Furthermore, it is an object of the invention to design the method for producing this support for light-sensitive materials in such a way that a low-fog photographic material is produced.

Eine weitere Aufgabe der Erfindung besteht darin, einen Schichtträger für lichtempfindliche Materia­lien zur Verfügung zu stellen, dessen rückseitig aufgebrachte Antirollschicht ein Wasseraufnahmever­mögen von weniger als 2,5 g H₂O pro 1 g Protein aufweist, gemessen nach 10 Minuten Einwirkzeit von destilliertem Wasser von 22°C.Another object of the invention is to provide a support for photosensitive materials, the anti-roll layer applied on the back has a water absorption capacity of less than 2.5 g H₂O per 1 g protein, measured after 10 minutes of distilled water at 22 ° C. .

Gelöst werden diese Aufgaben durch einen Schichtträ­ger für lichtempfindliche Materialien mit einer Anti­rollschicht auf der Rückseite, die mindestens folgende Komponenten enthält:

  • a) 100 Gewichtsteile Proteinbinder oder protein-­haltige Bindemittelmischung
  • b) 0,3 - 1,7 Gewichtsteile eines Reaktionsprodukts aus Triazin und Formaldehyd im Masschenverhältnis von 1:0,1 bis 1:0,7,
  • c) 2,1 - 5,5 Gewichtsteile einer N-Methylolverbindung,
  • d) 30 - 50 Gewichtsteile eines aliphatischen mehrwer­tigen Alkohols.
These tasks are solved by a layer support for light-sensitive materials with an anti-roll layer on the back, which contains at least the following components:
  • a) 100 parts by weight of protein binder or protein-containing binder mixture
  • b) 0.3-1.7 parts by weight of a reaction product of triazine and formaldehyde in a mass ratio of 1: 0.1 to 1: 0.7,
  • c) 2.1-5.5 parts by weight of an N-methylol compound,
  • d) 30-50 parts by weight of an aliphatic polyhydric alcohol.

Das Verhältnis der Komponenten in der Triazin-Form­aldehyd-Vormischung entspricht dem der DE-A-37 27 293 und beträgt 1,3,5-Triazin : Formaldehyd = 1:0,1 bis 1:0,7.The ratio of the components in the triazine-formaldehyde premix corresponds to that of DE-A-37 27 293 and is 1,3,5-triazine: formaldehyde = 1: 0.1 to 1: 0.7.

Das Verhältnis der Triazin-Formaldehyd-Vormischung zur N-Methylolverbindung beträgt 1:2,5 bis 1:10. Die Menge an Gesamthärtungsmittel (Triazin-Formal­dehyd-Vormischung und N-Methyloloverbindung) ist 3-6 g/100 g Protein. Die Menge an aliphatischem mehr­wertigem Alkohol ist 30 - 50 g/100 g Protein.The ratio of the triazine-formaldehyde premix to the N-methylol compound is 1: 2.5 to 1:10. The amount of total curing agent (triazine-formaldehyde premix and N-methylolo compound) is 3-6 g / 100 g protein. The amount of aliphatic polyhydric alcohol is 30-50 g / 100 g protein.

Die Antirollschichtlösung kann alle sonst üblichen weiteren Zusätze wie Mattierungsmittel (z.B. Kiesel­säure), Antistatika (z.B. anorganische Salze), op­tische Aufheller (z.B. Stilbenderivate), Netzmittel (z.B. Saponin) und ähnliche enthalten.The anti-roll layer solution can contain all other usual additives such as matting agents (e.g. silica), antistatic agents (e.g. inorganic salts), optical brighteners (e.g. stilbene derivatives), wetting agents (e.g. saponin) and the like.

Die Antirollschichtlösung kann mit allen gebräuch­lichen Auftrags- und Dosierverfahren, wie beispiels­weise Walzenantrag-, Gravur- oder Nipp-Verfahren, mit gegebenenfalls anschließender Luftbürsten- oder Roll­rakeldosierung aufgetragen werden.The anti-roll layer solution can be applied with all customary application and metering methods, such as roller application, engraving or nipping methods, with subsequent air brush or roller doctor metering if necessary.

In einer besonders wirtschaftlichen Form des Verfah­rens, wird die auf die Rückseite des Schichtträgers aufgetragene Antirollschichtlösung direkt aus der Solform heraus getrocknet, also ohne vorhergehende Gelierung der Lösung.In a particularly economical form of the process, the anti-roll layer solution applied to the back of the support is dried directly from the sol mold, that is to say without prior gelation of the solution.

Es war überraschend, daß eine Kombination der genann­ten Zusatzstoffe eine so ausgezeichnete schnelle Pro­teinhärtung ergaben, da weder die gleiche Menge an Einzelkomponenten, noch die bevorzugte Vormischung aus Triazin und Formaldehyd entsprechend gute Här­tungsergebnisse lieferten.It was surprising that a combination of the additives mentioned gave such an excellent rapid protein curing, since neither the same amount of individual components nor the preferred premix of triazine and formaldehyde gave correspondingly good curing results.

Die folgenden Beispiele sollen die Erfindung ver­deutlichen, jedoch nicht einschränken:The following examples are intended to illustrate but not limit the invention:

Beispiel 1example 1

Ein Schichtträger bestehend aus 175/m² Papier und je einer Schicht von 35 g/m² Polyethylen pro Seite wurde mit folgender Antirollschichtlösung beschichtet. Wasser 58,5 Gew.% Gelatine 8 Gew.% Natriumnitrat 10%ige Lsg. 7 Gew.% Kieselsäure (Gasil 644) 20%ige Lsg. 12,5 Gew.% Maisstärke (Fluidamid DF 12) 1 Gew.% Netzmittel (Saponin Q) 5%ige Lsg. 1 Gew.% TAF*/Formaldehyd (1:0,3) 2%ige Lsg. 3 Gew.% Dimethylolharnstoff 5%ige Lsg. 6 Gew.% Ethylenglykol 3 Gew.% *TAF = 1,3,5-Triacrylloyl-Hexahydro-s-Triazin A layer support consisting of 175 / m² paper and a layer of 35 g / m² polyethylene per side was coated with the following anti-roll solution. water 58.5% by weight gelatin 8% by weight Sodium nitrate 10% solution. 7% by weight Silica (Gasil 644) 20% solution. 12.5% by weight Corn starch (Fluidamid DF 12) 1% by weight Wetting agent (Saponin Q) 5% solution. 1% by weight TAF * / formaldehyde (1: 0.3) 2% solution. 3% by weight Dimethylol urea 5% solution. 6% by weight Ethylene glycol 3% by weight * TAF = 1,3,5-triacrylloyl-hexahydro-s-triazine

Die Antirollschichtlösung wurde mittels Walzenauftrags­vorrichtung und Rakeldosierung auf die Rückseite des mit Polyethylen beschichteten Trägers aufgetragen und aus der Solform heraus im Heißluftkanal bei einer Luft­temperatur von 130°C getrocknet. Das Auftragsgewicht nach Trocknung betrug 4,2 g/m². Die Bahngeschwindigkeit betrug 130 m/min.The anti-roll layer solution was applied to the back of the polyethylene-coated support by means of a roller application device and knife metering and dried out of the sol mold in a hot air duct at an air temperature of 130 ° C. The application weight after drying was 4.2 g / m². The web speed was 130 m / min.

Beispiel 2Example 2

Ein Schichtträger bestehend aus 180 g/m² Papier und einer Schicht von 35 g/m² Polyethylen auf der Vorder­seite und 28 g/m² Polyethylen auf der Rückseite wurde mit folgender Antirollschichtlösung beschichtet: Wasser 54 Gew.% Gelatine 8 Gew.% Natriumnitrat 10%ige Lsg. 7 Gew.% Kieselsäure (Gasil 644) 20%ige Lsg. 13 Gew.% Netzmittel (Saponin Q) 5%ige Lsg. 1 Gew.% TAF*/Formaldehyd (1:0,5) 2%ige Lsg. 2 Gew.% Trimethylolharnstoff 5%ige Lsg. 8 Gew.% Polyethylenglykol (MG 400) 50%ige Lsg. 7 Gew.% *TAF = 1,3,5-Triacrylloyl-Hexahydro-s-Triazin A layer support consisting of 180 g / m² paper and a layer of 35 g / m² polyethylene on the front and 28 g / m² polyethylene on the back was coated with the following anti-roll solution: water 54% by weight gelatin 8% by weight Sodium nitrate 10% solution. 7% by weight Silica (Gasil 644) 20% solution. 13% by weight Wetting agent (Saponin Q) 5% solution. 1% by weight TAF * / formaldehyde (1: 0.5) 2% solution. 2% by weight Trimethylol urea 5% solution. 8% by weight Polyethylene glycol (MG 400) 50% solution. 7% by weight * TAF = 1,3,5-triacrylloyl-hexahydro-s-triazine

Die Antirollschichtlösung wurde mittels Luftbürste auf die Rückseite des mit Polyethylen beschichteten Trägers aufgetragen, in einer Kühlzone bei 8°C Luft­temperatur geliert und in zwei Stufen bei Lufttempe­raturen von 32°C und 60°C getrocknet. Die Bahnge­schwindigkeit betrug 130 m/min, das Auftragsgewicht nach Trocknung betrug 5,0 g/m².The anti-roll solution was applied with an air brush to the back of the polyethylene-coated support, gelled in a cooling zone at 8 ° C air temperature and dried in two stages at air temperatures of 32 ° C and 60 ° C. The web speed was 130 m / min, the application weight after drying was 5.0 g / m².

Beispiel 3Example 3

Ein Schichtträger gemäß Beispiel 1 wurde mit folgender Antirollschichtlöung beschichtet: Wasser 58,6 Gew.% Gelatine 8 Gew.% Natriumnitrat 10%ige Lsg. 7 Gew.% Kieselsäure (Gasil 644) 20%ige Lsg. 13 Gew.% Netzmittel (Saponin Q) 5%ige Lsg. 1 Gew.% TAF*/Formaldehyd (1:0,4) 2%ige Lsg. 3 Gew.% Trimethylolmelamin 5%ige Lsg. 4,4 Gew.% Pentaerythrit 5 Gew.% *TAF = 1,3,5-Triacrylloyl-Hexahydro-s-Triazin A layer support according to Example 1 was coated with the following anti-roll layer solution: water 58.6% by weight gelatin 8% by weight Sodium nitrate 10% solution. 7% by weight Silica (Gasil 644) 20% solution. 13% by weight Wetting agent (Saponin Q) 5% solution. 1% by weight TAF * / formaldehyde (1: 0.4) 2% solution. 3% by weight Trimethylolmelamine 5% solution. 4.4% by weight Pentaerythritol 5% by weight * TAF = 1,3,5-triacrylloyl-hexahydro-s-triazine

Die Antirollschichtlösung wurde mittels Walzauftrags­vorrichtung und Rakeldosierung auf die Rückseite des mit Polyethylen beschichteten Trägers aufgetragen und aus der Solform heraus im Heißluftkanal bei einer Lufttemperatur von 130°C getrocknet. Das Auftrags­gewicht nach Trocknung betrug 3,7 g/m². Die Bahnge­schwindigkeit betrug 130 m/min.The anti-roll layer solution was applied to the back of the polyethylene-coated carrier by means of a roller application device and knife metering and dried out of the sol mold in a hot air duct at an air temperature of 130 ° C. The application weight after drying was 3.7 g / m². The web speed was 130 m / min.

Vergleichsbeispiele V 1Comparative Examples V 1

Ein Schichtträger gemäß Beispiel 1 wurde mit folgenden Antirollschichtlösungen beschichtet: Gelatine 8 Gew.% Natriumnitrat 10%ige Lsg. 7 Gew.% Kieselsäure (Gasil 644) 20%ige Lsg. 13 Gew.% Netzmittel (Saponin Q) 5%ige Lsg. 1 Gew.% A layer support according to Example 1 was coated with the following anti-roll layer solutions: gelatin 8% by weight Sodium nitrate 10% solution. 7% by weight Silica (Gasil 644) 20% solution. 13% by weight Wetting agent (Saponin Q) 5% solution. 1% by weight

Die weitern Komponenten waren bei Wasser TAF*:FA*=1:0,4 2%ige Lsg. DMH* 5%ige Lsg. EG* PEG*4000 10%ige Lsg. V 1a 50 Gew.% 18 Gew.% - 3 Gew.% - V 1b 60,8 Gew.% - 7,2 Gew.% 3 Gew.% - V 1b 32 Gew.% 3 Gew.% 6 Gew.% - 30 Gew.% TAF* = 1,3,5-Triacryloyl-Hexahydro-s-Triazin FA* = Formaldehyd DMH* = Dimethylolharnstoff EG* = Ethylenblykol PEG*4000 = Polyethylenglykol mit Molgewicht ca. 4000 The other components were included water TAF *: FA * = 1: 0.4 2% solution. DMH * 5% solution. EG * PEG * 4000 10% solution. V 1a 50% by weight 18% by weight - 3% by weight - V 1b 60.8% by weight - 7.2% by weight 3% by weight - V 1b 32% by weight 3% by weight 6% by weight - 30% by weight TAF * = 1,3,5-triacryloyl-hexahydro-s-triazine FA * = formaldehyde DMH * = dimethylol urea EG * = ethylene glycol PEG * 4000 = polyethylene glycol with a molecular weight of approx. 4000

Die Antirollschichtlösung wurde mittels Walzenauftrags­vorrichtung und Rakeldosierung auf die Rückseite des mit Polyethylen beschichteten Trägers aufgetragen und aus der Solform heraus im Heißluftkanal bei einer Lufttemperatur von 130°C getrocknet. Das Auftragsgewicht nach Trocknung betrug 4,0 ± 0,1 g/m². Die Bahngeschwindigkeit betrug 130 m/min.The anti-roll layer solution was applied to the back of the polyethylene-coated support by means of a roller application device and knife metering and dried out of the sol mold in a hot air duct at an air temperature of 130 ° C. The application weight after drying was 4.0 ± 0.1 g / m². The web speed was 130 m / min.

Vergleichsbeispiele V 2Comparative Examples V2

V 2a: Ein Schichtträger gemäß Beispiel 1 wurde mit der folgenden Antirollschichtlösung beschichtet, die der Rezeptur aus Beispiel 1 der DE-A-37 21 808 entspricht: Wasser 84,75 Gew.% Gelatine 12 Gew.% Natriumnitrat 1 Gew.% Kieselsäure 1 Gew.% Glycerin 1 Gew.% Netzmittel 0,1 Gew.% Citronensäure 0,02 Gew.% Chromalaun 0,1 Gew.% Triacrylolylhexahydrotriazin 0,03 Gew.% Natronlaugelösung bis pH 6,6 V 2a: A layer support according to Example 1 was coated with the following anti-roll layer solution, which corresponds to the recipe from Example 1 of DE-A-37 21 808: water 84.75% by weight gelatin 12% by weight Sodium nitrate 1% by weight Silica 1% by weight Glycerin 1% by weight Wetting agent 0.1% by weight Citric acid 0.02% by weight Chrome alum 0.1% by weight Triacrylolylhexahydrotriazine 0.03% by weight Sodium hydroxide solution up to pH 6.6

Dieser, mittels Auftragsvorrichtung entsprechend Bei­spiel 1 auf die Rückseite aufgetragene Überzug, wurde im Heißluftkanal bei 130°C Lufttemperatur getrocknet, das Auftragsgewicht betrug 5,0 g/m².This coating, which was applied to the back by means of an application device in accordance with Example 1, was dried in a hot air duct at an air temperature of 130 ° C., the application weight was 5.0 g / m 2.

Auf diesen ersten Überzug wurde unmitelbar nach seiner Trocknung der folgende zweite Überzug aufgetragen: Chromalaun 5 Gew.% Polyvinylalkohol, vollverseift, mittlerer Polymerisierungsgrad = 5100 1 Gew.% Wasser 94 Gew.% The following second coating was applied directly to this first coating after it had dried: Chrome alum 5% by weight Polyvinyl alcohol, fully saponified, average degree of polymerization = 5100 1% by weight water 94% by weight

Dieser, mittels Auftragsvorrichtung entsprechend Beispiel 1 auf die Rückseite aufgetragene zweite Überzug, wurde im Heißluftkanal bei 130°C Lufttem­peratur getrocknet. Das Auftragsgewicht betrug 320 mg/m², die Bahngeschwindigkeit bei beiden Aufträgen war 100 m/min.This second coating, which was applied to the back by means of an application device in accordance with Example 1, was dried in a hot air duct at an air temperature of 130.degree. The application weight was 320 mg / m², the web speed for both jobs was 100 m / min.

V 2b: Ein Schichtträger gemäß Beispiel 1 wurde mit der folgenden Antirollschichtlösung beschichtet, die sich an die Rezepturen 1 und 3 f an die DE-A-­37 27 293 anlehnt: Wasser 66,1 Gew.% Gelatine 7 Gew.% Natriumnitrat 10%ige Lsg. 7 Gew.% Kieselsäure 20%ige Lsg. 12,5 Gew.% Netzmittel 5%ige Lsg. 1 Gew.% TAF/Formaldehyd (1:0,5) 2%ige Lsg. 3 Gew.% Harnstoff 2%ige Lsg. 0,4 Gew.% Ethylenglykol 3 Gew.% V 2b: A layer support according to Example 1 was coated with the following anti-roll layer solution, which is based on recipes 1 and 3 f from DE-A-37 27 293: water 66.1% by weight gelatin 7% by weight Sodium nitrate 10% solution. 7% by weight Silica 20% solution. 12.5% by weight Wetting agent 5% solution. 1% by weight TAF / formaldehyde (1: 0.5) 2% solution. 3% by weight urea 2% solution. 0.4% by weight Ethylene glycol 3% by weight

Die Antirollschichtlösung wurde mittels Auftragsvor­richtung aus Beispiel 1 auf die Rückseite des mit Polyethylen beschichteten Trägers aufgetragen und aus der Solform heraus im Heißluftkanal bei einer Lufttemperatur von 130°C getrocknet. Die Bahngeschwin­digkeit betrug 100 m/min, das Auftragsgewicht nach Trocknung betrug 4,0 g/m².The anti-roll layer solution was applied to the back of the polyethylene-coated support by means of the application device from Example 1 and dried out of the sol mold in a hot air duct at an air temperature of 130 ° C. The web speed was 100 m / min, the application weight after drying was 4.0 g / m².

PrüfergebnisseTest results

BeispieleExamples Wasseraufnahme (g/1g Gelatine)Water absorption (g / 1g gelatin) fotografischer Schleier bei Kontakt mit Coloremulsionenphotographic veil on contact with color emulsions Farbe der RS des SchichtträgersColor of the RS of the layer support sofortright away nach 4 Wochenafter 4 weeks 11 2,02.0 1,31.3 1-21-2 weißWhite 22nd 1,81.8 1,31.3 11 weißWhite 33rd 2,22.2 1,41.4 1-21-2 weißWhite V 1aV 1a 3,73.7 2,92.9 33rd weißWhite V 1bV 1b 3,33.3 3,03.0 1-21-2 weißWhite V 1cV 1c 3,03.0 2,42.4 11 weißWhite V 2aV 2a 0,90.9 1,01.0 44th schwach grünfaint green V 2bV 2b 3,13.1 2,62.6 44th weißWhite

WasseraufnahmeWater absorption

Ein Probestreifen wird für 10 Minuten in destilliertes Wasser von 22°C getaucht und anschließend getrocknet. Vor und nach der Trocknung wird der Probestreifen ge­wogen. Die Gewichtsdifferenz wird bezogen auf die Ge­latinemenge, die dieser Probestreifen aufweist. Die Gelatinemenge wurde aus Rezeptur, Auftragsgewicht und Probengröße errechnet. Die Wasseraufnahme wird angege­ben in g Wasser/1 g Gelatine.A test strip is immersed in distilled water at 22 ° C for 10 minutes and then dried. The test strip is weighed before and after drying. The difference in weight is based on the amount of gelatin that this sample strip has. The amount of gelatin was calculated from the recipe, application weight and sample size. The water absorption is given in g water / 1 g gelatin.

Fotografischer SchleierPhotographic veil

Handelsübliches Colorpapier wurde in Kontakt mit der frisch getrockneten Emulsionsschicht 5 Tage bei 50°C inkubiert, dann zusammen mit einer gleich behandelten Blindprobe entwickelt und fixiert und der Schleier gegen den Schleier der Blindprobe ausgewertet, wobei die Note 1 keinen Unterschied bedeutet und die Note 5 eine sehr starke Veränderung.Commercial color paper was incubated in contact with the freshly dried emulsion layer for 5 days at 50 ° C., then developed and fixed together with a blank sample treated in the same way and the veil evaluated against the veil of the blind sample, whereby the grade 1 means no difference and the grade 5 a very strong change.

Claims (7)

1. Schichtträger für lichtempfindliche Materialien mit Antirollschicht auf der Rückseite, dadurch gekennzeichnet, daß die Antirollschicht mindestens folgende Komponenten enthält: a) 100 Gewichtsteile Proteinbinder oder protein­haltige Bindemittelmischung b) 0,3 - 1,7 Gewichtsteile eines Reaktionsprodukts aus Triazin und Formaldehyd im Massenverhältnis von 1:0,1 bis 1:0,7, c) 2,1 - 5,5 Gewichtsteile einer N-Methylol­verbindung, d) 30 - 50 Gewichtsteile eines aliphatischen mehrwertigen Alkohols. 1. Layer support for light-sensitive materials with anti-roll layer on the back, characterized in that the anti-roll layer contains at least the following components: a) 100 parts by weight of protein binder or protein-containing binder mixture b) 0.3-1.7 parts by weight of a reaction product of triazine and formaldehyde in a mass ratio of 1: 0.1 to 1: 0.7, c) 2.1-5.5 parts by weight of an N-methylol compound, d) 30-50 parts by weight of an aliphatic polyhydric alcohol. 2. Schichtträger nach Anspruch 1, dadurch gekennzeich­net, daß das Triazin ein 1.3.5-Triazin ist.2. Layer support according to claim 1, characterized in that the triazine is a 1.3.5-triazine. 3. Schichtträger nach Anspruch 1, dadurch gekennzeich­net, daß die N-Methylolverbindung ein Di- oder Tri­methylolharnstoff oder Trimethylolmelamin ist.3. Layer support according to claim 1, characterized in that the N-methylol compound is a di- or trimethylol urea or trimethylol melamine. 4. Schichtträger nach Anspruch 1, dadurch gekennzeich­net, daß der aliphatische mehrwertige Alkohol ein Molekulargewicht unter 2000 besitzt.4. Layer support according to claim 1, characterized in that the aliphatic polyhydric alcohol has a molecular weight below 2000. 5. Schichtträger nach Anspruch 1, dadurch gekennzeich­net, daß die Antirollschicht andere übliche Zusätze wie Mattierungsmittel, Netzmittel, optische Aufhel­ler, Nuancierfarbstoffe oder Antistatika enthält.5. Layer support according to claim 1, characterized in that the anti-roll layer contains other conventional additives such as matting agents, wetting agents, optical brighteners, shading dyes or antistatic agents. 6. Verfahren zur Herstellung eines Schichtträgers nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß einer wässrigen proteinhaltigen Lösung das mindestens einstündig gereifte Reaktionsprodukt aus Triazin und Form­aldehyd, eine N-Methylolverbindung und ein alipha­tischer mehrwertiger Alkohol zugesetzt werden und daß diese Antirollschichtlösung auf den Schicht­träger aufgetragen und getrocknet wird.6. A process for the preparation of a support according to one or more of claims 1 to 5, characterized in that an aqueous protein-containing solution, the reaction product of triazine and formaldehyde, which has been matured for at least one hour, an N-methylol compound and an aliphatic polyhydric alcohol are added and that this anti-roll solution is applied to the substrate and dried. 7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß eine Solform der aufgetragenen Antirollschicht­lösung getrocknet wird.7. The method according to claim 6, characterized in that a sol form of the applied anti-roll solution is dried.
EP89108096A 1989-05-05 1989-05-05 Support for light-sensitive materials with an anti-curling layer coated on the backside Expired - Lifetime EP0395785B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT89108096T ATE118622T1 (en) 1989-05-05 1989-05-05 LAYER CARRIER FOR LIGHT-SENSITIVE MATERIALS AND ANTI-ROLL LAYER ON THE BACK.
EP89108096A EP0395785B1 (en) 1989-05-05 1989-05-05 Support for light-sensitive materials with an anti-curling layer coated on the backside
DE58909012T DE58909012D1 (en) 1989-05-05 1989-05-05 Layer support for light-sensitive materials and anti-roll layer on the back.
US07/510,303 US5100769A (en) 1989-05-05 1990-04-16 Paper support for light-sensitive materials with an anti-curl layer on the backside
JP2111570A JPH0812396B2 (en) 1989-05-05 1990-04-25 Support for photosensitive material having anti-curl layer on back side
CN90102695.6A CN1029428C (en) 1989-05-05 1990-05-04 Paper support for light-sensitive materials with an anti-curl layer on the backside

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EP89108096A EP0395785B1 (en) 1989-05-05 1989-05-05 Support for light-sensitive materials with an anti-curling layer coated on the backside

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EP0395785A1 true EP0395785A1 (en) 1990-11-07
EP0395785B1 EP0395785B1 (en) 1995-02-15

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EP (1) EP0395785B1 (en)
JP (1) JPH0812396B2 (en)
CN (1) CN1029428C (en)
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DE (1) DE58909012D1 (en)

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EP0604732A1 (en) * 1992-12-30 1994-07-06 Felix Schoeller jr. Papierfabrik GmbH & Co. KG Carrier for photo sensitive material with anti-coiling layer coated on the backside
EP0757283A1 (en) * 1995-07-31 1997-02-05 Agfa-Gevaert N.V. Material for industrial radiography and development method thereof

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JPH05297514A (en) * 1992-04-20 1993-11-12 Konica Corp Silver halide photographic sensitive material
US5358834A (en) * 1993-09-23 1994-10-25 Eastman Kodak Company Photographic element provided with a backing layer

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GB1127346A (en) * 1965-06-04 1968-09-18 Fuji Photo Film Co Ltd Improvements in and relating to photographic material
DE2354336A1 (en) * 1972-10-30 1974-05-22 Fuji Photo Film Co Ltd Hardener/polyol mixture for photographic material - for rapid hardening without diffusion of hardener into overlying auxiliary coats
EP0303789A1 (en) * 1987-08-17 1989-02-22 Felix Schoeller jr Foto- und Spezialpapiere GmbH & Co. KG Hardening method for photographic and auxiliary layers containing gelatin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604732A1 (en) * 1992-12-30 1994-07-06 Felix Schoeller jr. Papierfabrik GmbH & Co. KG Carrier for photo sensitive material with anti-coiling layer coated on the backside
DE4244529A1 (en) * 1992-12-30 1994-07-07 Schoeller Felix Jun Papier Layer support for light-sensitive materials with anti-roll coating on the back
US5374510A (en) * 1992-12-30 1994-12-20 Felix Schoeller, Jr. Papierfabriken Support material for light sensitive materials with back anticurl layer
EP0757283A1 (en) * 1995-07-31 1997-02-05 Agfa-Gevaert N.V. Material for industrial radiography and development method thereof

Also Published As

Publication number Publication date
JPH02304552A (en) 1990-12-18
JPH0812396B2 (en) 1996-02-07
EP0395785B1 (en) 1995-02-15
US5100769A (en) 1992-03-31
DE58909012D1 (en) 1995-03-23
ATE118622T1 (en) 1995-03-15
CN1046985A (en) 1990-11-14
CN1029428C (en) 1995-08-02

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