EP0604732B1 - Support de couche pour matériaux photosensibles avec couche pour empêcher l'enroulement - Google Patents

Support de couche pour matériaux photosensibles avec couche pour empêcher l'enroulement Download PDF

Info

Publication number
EP0604732B1
EP0604732B1 EP19930117767 EP93117767A EP0604732B1 EP 0604732 B1 EP0604732 B1 EP 0604732B1 EP 19930117767 EP19930117767 EP 19930117767 EP 93117767 A EP93117767 A EP 93117767A EP 0604732 B1 EP0604732 B1 EP 0604732B1
Authority
EP
European Patent Office
Prior art keywords
gelatin
film base
base according
anticurl layer
layer
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
EP19930117767
Other languages
German (de)
English (en)
Other versions
EP0604732A1 (fr
Inventor
Horst Dipl.-Ing. Westfal
Andreas Diekmann
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.)
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Original Assignee
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Felix Schoeller Jr Foto und Spezialpapiere GmbH filed Critical Felix Schoeller Jr Foto und Spezialpapiere GmbH
Publication of EP0604732A1 publication Critical patent/EP0604732A1/fr
Application granted granted Critical
Publication of EP0604732B1 publication Critical patent/EP0604732B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31801—Of wax or waxy material

Definitions

  • the invention relates to a support for photosensitive Materials with an anti-roll layer on the Back.
  • gelatin to build up the silver halide emulsions, the protective layer ten and the back layers used.
  • Gelatin layers however, swell with water and are swollen low mechanical strength. That's why they are usually hardened by suitable hardening agents.
  • the Hardeners crosslink the gelatin molecules together and thereby reduce water absorption or swellability of the layer, an increase in the melting point and an improvement in mechanical strength the gelatin layer.
  • Hardened layers of gelatin are above all resistant to the photographic treatment baths.
  • the light-sensitive layers containing gelatin on the The front of the carrier material is usually gelatin-containing Layers opposite on the back of the carrier material.
  • the swelling behavior should be on both sides of the carrier material in the photographic treatment baths and behavior of the layers if possible after drying be kept identical, so that during the entire work process as well as the material for later use maintains a good flatness.
  • the layers applied to the back are therefore referred to as anti-roll, anti-curl or non-curling layers.
  • Your layer thickness depends on the swelling behavior and on the layer thickness of the front coating.
  • the anti-roll layers usually still contain various additives. These can be: wetting agents such as saponin, matting agents such as silica, plasticizers like glycerin, organic acids like 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 hardeners for gelatin include Chromium (III) salts, aldehydes, N-methylol compounds, dialdehyde polysaccharides, polyfunctional epoxides, aziridines, polyfunctional Vinyl compounds, triacrylic formal, substituted Dichloro-s-triazines and others in Chap. 2 of the book "The Theory of the Photographic Process” by T.H. James (London, 1977) substances described.
  • the hardeners are either the gelatin-containing solutions added before processing or they are considered separate solution to that already on a carrier Gelatin layer applied. Diffuse in the second case the hardeners in the gelatin layer where they react with the peptide chains.
  • Both methods can also be combined with one another in this way that part of the hardening agent of the gelatin solution added and another part afterwards the shift is brought.
  • Every hardening agent known so far has one or other disadvantage and does not have a wide range of applications, like especially with auxiliary gelatine layers is desired, which before the emulsion on a Carrier are applied and later with the actual photographic layers are in contact.
  • DE 3 721 808 describes rapid gelatin hardening by applying two successive coatings, wherein the second upper coating consists of a Hardener solution of chromium salts is formed.
  • EP 395 785 achieves the desired low water absorption with a coating, the gelatin, an aliphatic polyhydric alcohol, an N-methylol compound and contains a reaction product of triazine and formaldehyde.
  • a low water absorption means intensive hardening of those containing gelatin Layer. This also results in an improved one Resistance to mechanical stress, such as for example, through the transport rollers in the developer machines given is.
  • the aim is to develop an anti-roll layer whose water absorption capacity compared to that described State of the art is further reduced.
  • the anti-roll layer to be designed so that a low-fog product is created.
  • This task is solved by a layer support for photosensitive materials with an anti-roll coating on the back from at least hardening agent and one fermentative degraded bone gelatin.
  • the gelatin according to the invention has more than 40% low molecular weight components with less than 100,000 molecular weight and bloom values of 200-250 g.
  • triglycidyl isocyanurate is used as the curing agent used.
  • Bloom is a measure of the gelatin strength (gelatin elasticity) and is specified as the force required is a stamp of 12.7 mm in diameter and flat surface in a gel of 6.6% dry matter 4.00 mm deep.
  • the amount of hardener is 0.5-12% by weight, preferably 1 - 6 wt .-%, based on the amount of gelatin.
  • the anti-roll layers can also contain wetting agents such as saponin, Plasticizers such as aliphatic polyalcohols, matting agents like silicas, organic acids like citric acid, Antistatic agents such as inorganic salts or rheological Contain auxiliaries such as carboxymethyl cellulose.
  • wetting agents such as saponin, Plasticizers such as aliphatic polyalcohols, matting agents like silicas, organic acids like citric acid, Antistatic agents such as inorganic salts or rheological Contain auxiliaries such as carboxymethyl cellulose.
  • an aliphatic polyalcohol has been demonstrated in quantities of up to 50% by weight, preferably 5-30% by weight on amount of gelatin.
  • Aliphatic polyalcohols are in this sense ethylene glycol, glycerin and polyglycols up to a molecular weight of 2000.
  • the water absorption is the anti-roll layer less than 1 g / g gelatin measured after 10 minutes of distilled water of 22 ° C.
  • the hardenability is determined with the Tecam solidification timer. To 15 g of a 10% gelatin solution 135 g of water are added. This solution is at room temperature Swollen for 30 min and then melted at 40 ° C. At 35 ° C the pH value in the Tecam device becomes 6.0 set, 4.2 ml of 10% formalin solution added and Stirred for 15 min. The time is then measured with the Tecam device, which is necessary for the formation of a solid gel.
  • the anti-roll layer can be applied to the substrate can be applied in one or two steps.
  • the solution to be applied must have all components already include. Is coated in two steps, contains the coating solution to be applied first usually a smaller amount of hardener. However, this amount must be such that after drying this first layer is the mechanical stress of the second Coating survives undamaged.
  • This second coating solution usually consists of a dilute Hardener solution.
  • the coating solution can be used with all common and dosing processes, such as roller application, Engraving or nip process, with subsequent if necessary Air brush or roller doctor dosage applied will.
  • the anti-roll layer which is particularly preferred according to the invention, the at least the gelatin according to the invention and the hardening agent Contains triglycidyl isocyanurate, shows to be applied Another advantageous coating solution Property. Without problems with the rheology of the Solution and with regard to the layer properties achieved can the coating solution in a wide pH range Process from pH 5 to pH 9. This means that the solution meets various requirements and that they can cope with fluctuations in pH during processing can.
  • a layer support consisting of 175 g / m 2 paper and a layer of 35 g / m 2 polyethylene per side, the polyethylene layer on the front being 11.5% by weight titanium dioxide pigment, was coated with the following anti-roll layer solutions:
  • the anti-roll solution was applied using a roller applicator and knife metering on the back of the substrate applied and out of the sol form in the hot air duct dried at an air temperature of 130 ° C.
  • the machine speed was 120 m / min.
  • Example 2 The layer support from Example 1 was coated with the following anti-roll layer solutions under the same machine conditions: Parts by weight Concentr. d.aqueous. Thinning. % By weight Examples Ex. Ex. Cf. B4a B4b B4c B5 B6 V4 Gelatin 1 25th - - - - - 55.0 Gelatin 2 30th 45.0 45.0 45.0 55.0 42.5 - Sodium nitrate 25th 1.2 1.2 1.2 1.4 1.2 1.2 Silicon dioxide - 4.4 4.4 4.4 - 4.4 4.4 - 4.4 4.4 - 4.4 4.4 - 4.4 4.4 4.4 - 4.4 4.4 4.4 4.4 - 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
  • test strip is placed in distilled water for 10 minutes dipped at 22 ° C and then dried. Before and after the test strip is weighed during drying. The weight difference is based on the amount of gelatin that this sample strips having. The amount of gelatin is made from the recipe, the order weight and the sample size. The water intake is given in g water / lg gelatin.
  • the sample to be tested becomes warm at 30 ° C for one minute Put water. Then the still wet pattern is under one Rake pulled, the 6 individual prongs (prongs) different carry heavy weights up to a maximum of 100 g. The Pulling speed is 0.8 cm / s. The checked pattern is dried. The scratch marks for visualization with paper light blue stained. It will be the number of visible Scratch marks (max. 6) indicated.
  • test results show that the values of water absorption and Scratch resistance by using the gelatin according to the invention be improved.
  • triglycidyl isocyanurate in combination with the hardening agent can with favorable rheological values of the coating solution and anti-roll coatings in a wide pH range can be achieved with water absorption of ⁇ 1 g water / g gelatin.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Materials For Medical Uses (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Support de couche pour matériaux photosensibles avec une couche empêchant l'enroulement sur le verso constituée au moins de gélatine et d'un agent de durcissement, caractérisé en ce que la couche empêchant l'enroulement contient comme gélatine une gélatine d'os pure dégradée par fermentation.
  2. Support de couche selon la revendication 1, caractérisé en ce que la gélatine présente une résistance Gallert de 200 à 250 g Bloom et une fraction > 40% à faible poids moléculaire dont le poids moléculaire est < 100.000.
  3. Support de couche selon les revendications 1 et 2, caractérisé en ce que la gélatine sous forme d'une solution aqueuse à 10% en poids présente, à 40°C, une viscosité de 10 à 20 mPas et, à 35°C, une aptitude au durcissement de 300 à 400 minutes.
  4. Support de couche selon les revendications 1 à 3, caractérisé en ce que la couche empêchant l'enroulement contient comme agent de durcissement de l'isocyanurate de triglycidyle.
  5. Support de couche selon les revendications 1 à 4, caractérisé en ce que la couche empêchant l'enroulement contient l'agent de durcissement en une quantité allant de 0,5 à 12% en poids et, de préférence, de 1 à 6% en poids, rapportée à la quantité de gélatine.
  6. Support de couche selon les revendications 4 et 5, caractérisé en ce que la couche empêcnant l'enroulement présente une capacité d'absorption d'eau < 1 g d'eau par g de gélatine, mesurée après 10 minutes d'action de l'eau distillée à 22°C.
  7. Support de couche selon les revendications 1 à 6, caractérisé en ce que la couche empêchant l'enroulement contient en outre, un agent réticulant, un plastifiant, un agent de matité, des acides organiques, des agents antisatiques, des sels et/ou des adjuvants rhéologiques.
  8. Support de couche selon les revendications 1 à 7, caractérisé en ce que la couche empêchant l'enroulement contient comme plastifiant un polyalcool aliphatique et, de préférence, de l'éthylèneglycol, de la glycérine et/ou un polyglycol ayant un poids moléculaire de 2000 au maximum.
  9. Support de couche selon les revendications 1 à 8, caractérisé en ce que le plastifiant est un polyalcool aliphatique, en une quantité de jusqu'à 50% en poids et, de préfé-rence, entre 5 et 35% en poids, rapportée à la quantité de gélatine.
EP19930117767 1992-12-30 1993-11-03 Support de couche pour matériaux photosensibles avec couche pour empêcher l'enroulement Expired - Lifetime EP0604732B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924244529 DE4244529A1 (de) 1992-12-30 1992-12-30 Schichtträger für lichtempfindliche Materialien mit rückseitiger Antirollschicht
DE4244529 1992-12-30

Publications (2)

Publication Number Publication Date
EP0604732A1 EP0604732A1 (fr) 1994-07-06
EP0604732B1 true EP0604732B1 (fr) 1998-03-25

Family

ID=6476825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930117767 Expired - Lifetime EP0604732B1 (fr) 1992-12-30 1993-11-03 Support de couche pour matériaux photosensibles avec couche pour empêcher l'enroulement

Country Status (4)

Country Link
US (1) US5374510A (fr)
EP (1) EP0604732B1 (fr)
JP (1) JPH0792612A (fr)
DE (2) DE4244529A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824941B2 (en) 2002-05-08 2004-11-30 Eastman Kodak Company Photographic element containing acid processed gelatin

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022342B2 (ja) * 1980-06-02 1985-06-01 富士写真フイルム株式会社 印刷用ハロゲン化銀写真感光材料の耐接着性の改良方法
JPS59191030A (ja) * 1983-04-14 1984-10-30 Mitsubishi Paper Mills Ltd 拡散転写用写真材料
DE3721808A1 (de) * 1987-07-02 1989-01-12 Schoeller F Jun Gmbh Co Kg Verfahren zur herstellung eines schichttraegers fuer lichtempfindliche materialien mit antirollschicht
DE58909012D1 (de) * 1989-05-05 1995-03-23 Schoeller F Jun Gmbh Co Kg Schichtträger für lichtempfindliche Materialien und Antirollschicht auf der Rückseite.
DE69228021T2 (de) * 1991-05-22 1999-06-24 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Photographisches Silberhalogenidmaterial
US5264339A (en) * 1991-09-12 1993-11-23 Agfa-Gevaert N.V. Method for the maufacture of a recording material including gelatin

Also Published As

Publication number Publication date
JPH0792612A (ja) 1995-04-07
DE4244529A1 (de) 1994-07-07
US5374510A (en) 1994-12-20
EP0604732A1 (fr) 1994-07-06
DE59308307D1 (de) 1998-04-30

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