EP0697620B1 - Fotografisches Trägermaterial mit Rückseitenschicht - Google Patents
Fotografisches Trägermaterial mit Rückseitenschicht Download PDFInfo
- Publication number
- EP0697620B1 EP0697620B1 EP95112373A EP95112373A EP0697620B1 EP 0697620 B1 EP0697620 B1 EP 0697620B1 EP 95112373 A EP95112373 A EP 95112373A EP 95112373 A EP95112373 A EP 95112373A EP 0697620 B1 EP0697620 B1 EP 0697620B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- support material
- coating composition
- acrylate
- salt
- 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
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/95—Photosensitive materials characterised by the base or auxiliary layers rendered opaque or writable, e.g. with inert particulate additives
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/85—Photosensitive materials characterised by the base or auxiliary layers characterised by antistatic additives or coatings
-
- 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
- G03C1/81—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
- G03C1/85—Photosensitive materials characterised by the base or auxiliary layers characterised by antistatic additives or coatings
- G03C1/853—Inorganic compounds, e.g. metals
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/85—Photosensitive materials characterised by the base or auxiliary layers characterised by antistatic additives or coatings
- G03C1/89—Macromolecular substances therefor
-
- 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
- G03C2001/7628—Back layer
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- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/259—Silicic material
-
- 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
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
-
- 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
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
-
- 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
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
- Y10T428/277—Cellulosic substrate
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- 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
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2852—Adhesive compositions
- Y10T428/2878—Adhesive compositions including addition polymer from unsaturated monomer
- Y10T428/2891—Adhesive compositions including addition polymer from unsaturated monomer including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof
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- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
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- 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]
- Y10T428/31652—Of asbestos
- Y10T428/31667—Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
Definitions
- the invention relates to a carrier material for photographic Layers in the form of a plastic-coated paper or a plastic film with a back layer, and one aqueous coating composition for the production of this Back layer.
- JP-63 004 231 describes a back layer which Has antistatic properties, printability and low dirt absorption. It is produced using a coating compound Polymer latex (e.g. carboxyl-containing acrylate copolymer), Conductivity agents (e.g. polystyrene sulfonic acid) and colloidal Silica.
- the coating composition can additionally Contain auxiliaries (e.g. hydroxyethyl cellulose).
- the back layer thus obtained has no writability with pencils on.
- DE-PS 37 35 871 describes a back layer in which all properties have been optimized, that is, this layer can also be described with pencils.
- the coating mass for this back layer is composed of one Terpolymer of predominantly styrene and butadiene, a conductivity agent (e.g. polystyrene sulfonic acid), a colloidal Silica and a silica with an average particle size from 3 to 6 ⁇ m.
- a conductivity agent e.g. polystyrene sulfonic acid
- colloidal Silica e.g. polystyrene sulfonic acid
- silica silica with an average particle size from 3 to 6 ⁇ m.
- EP-A-496 037 relates to a coating material for the Back of photographic support materials used as components an aluminum-modified colloidal silica Alkali salt of an organic polyacid, a polyfunctional Aziridine and a plastic dispersion containing a Has a residual monomer content of ⁇ 200 ppm,> 50 mol% hard Monomers in the polymer has free carboxyl groups in the polymer contains and as a dried film an interfacial tension of> 50 dynes / cm.
- This coating mass leads to a Back that has good properties in terms of Printability with thermal printers having.
- Another object of this invention is to provide a coating composition to provide, with the one on the back of plastic-coated papers or plastic films desired rear layer can be achieved above.
- the Coating compound or the back layer additionally an colloidal aluminum modified silica.
- the ratio of acrylate copolymer: conductivity agent preferably 90:10 to 70:30.
- the ratio of acrylate copolymer: coarse-grained silica is preferably 90:10 to 40:60.
- the ratio of acrylate copolymer: colloidal silica is preferably 100: 0 to 30:70
- the free carboxyl groups are through Polymerization of unsaturated carboxylic acids produced, e.g. of acrylic acid, methacrylic acid or maleic acid. These free Carboxyl groups contribute in addition to the conductivity agents for the antistatic treatment of the back layer. she are therefore also not by reaction with crosslinking agents blocked.
- Binding agents which form soft plastic films, have a disadvantageous effect on the writeability with pencils.
- a copolymer is therefore used whose monomers form hard films.
- the copolymer according to the invention is composed of more than 80% by weight of one or more of the monomers acrylic acid ester, C 1 to C 6 -alkyl acrylate and styrene.
- Hard homopolymers made from the above monomers such as polystyrene or polymethyl methacrylate, have ball indentations of 120-200 N / mm 2 , measured according to DIN 53456, while soft homopolymers, such as polyolefins, have ball indentations of 10-100 N / mm 2 .
- the organic polyacid used as a conductivity agent, or the salt of this acid is preferably the alkali salt Acid, the acid being a carboxylic acid such as polyacrylic acid or can be a sulfonic acid such as polystyrene sulfonic acid.
- the addition of coarse-grained silica generally has a positive effect on the writeability with pencils. Surprisingly, it has been found that the indication of the particle size of this silica is not a clear yardstick for this positive effect.
- the pore volume and in particular the surface have a significant influence (compare example B1 with comparison V1).
- the coarse-grained silica has a particle size of 3 to 6 ⁇ m, a pore volume of ⁇ 1 ml / g and a surface area of> 400 m 2 / g. In a particularly preferred embodiment, the silica has a surface area of 600 to 800 m 2 / g.
- thickeners examples include hydroxyethyl cellulose or water-soluble carboxyl-containing Acrylate-based copolymers. Others that are not well tolerated by salt Thickeners such as carboxymethyl celluloses lead to flocculation in the coating compound.
- the coating composition can be applied to the back of the carrier material to be coated using all customary application units and then dried, the amount applied being selected so that an application weight of 0.2 to 2.0 g / m 2 is present after drying.
- the aqueous coating composition can vary in the following amounts by weight: % By weight Acrylate copolymer, 50% by weight dispersion 3.0-10.0 Conductivity agent, 30% by weight solution 1.5 - 4.0 coarse-grained silica 0.5 - 4.0 colloidal silica, 30% by weight sol 0.0 - 20.0 Thickener, 2% by weight solution 25.0 - 40.0 water Rest up to 100.0
- the antistatic properties were tested by measuring the surface resistance with a comb electrode according to DIN-VDE 303T3.
- the printability was checked using the commercial ribbons "New Cherry Ribbon” and "Kodak Back Printer CAT 1402114".
- the samples were printed on the typewriter on a typewriter with a type stop and then placed in the Kodak developer EP2 at 38 ° C. for 3.5 minutes. Then the flattened samples were 5 times with a velvet covered and water-soaked 180 g roll at a speed of 10 cm / sec. smeared. The smudge resistance of the typeface was assessed visually.
- the writability with pencils was carried out with pencil hardness HB and assessed visually.
- the 5 cm wide commercially available 3M adhesive tape No. 8422 was pressed onto the back side layer and pressed on with an 8 kg roller.
- the adhesive tape was removed from the sample from punched-out 15 mm wide strips of this composite in a breaking load tester at an angle of 180 ° C. at a speed of 20 cm / min and with constant wetting of the separation point with water.
- the pulling force was measured.
- a value of> 2.0 N / 15 mm means good adhesion
- a value of> 1.0 N / 15 mm means sufficient adhesion.
- the coating composition of comparative example V2 (without hydroxyethyl cellulose) showed little stability. Beautiful after 1-2 hours there was significant sedimentation of the coarse-grained Silica while the other coating materials (with Hydroxyethyl cellulose) is stable after 24 hours, i.e. without were significant sedimentation.
Description
- Antistatik, damit bei der Weiterverarbeitung keine Verblitzungen, keine Sortierprobleme und keine verstärkten Schmutzanziehungen stattfinden.
- Beschreib- und Bedruckbarkeit, damit die Materialien gekennzeichnet werden können.
- Geringe Schmutzaufnahme gegenüber teerartigen Oxydationsprodukten fotografischer Entwicklungsbäder.
- Klebebandhaftung, damit beim Entwicklungsprozeß die Rollenwaren aneinander fixiert werden können.
- einem carboxylgruppenhaltigen Acrylat-Copolymer, das zu mehr als 80 Gew.% aus einem oder mehreren der Monomeren Acrylsäureester, C1 bis C6-Alkylacrylsäureester und Styrol besteht, wobei die freien Carboxylgruppen des Acrylat-Copolymeren unvernetzt bleiben,
- einer Naphtalinsulfonsäure oder einer organischen Polysäure mit freien oder salzartig gebundenen Carbonsäuregruppen oder Sulfonsäuregruppen,
- einer grobkörnigen Kieselsäure mit einer Korngröße von 3 bis 6 µm, einem Porenvolumen von < 1 ml/g und einer Oberfläche von > 400 m2/g (nach BET) und
- einem gut salzverträglichen Verdickungsmittel.
Gew.% | |
Acrylat-Copolymer, 50 Gew.%ige Dispersion | 3,0 - 10,0 |
Leitfähigkeitsmittel, 30 Gew.%ige Lösung | 1,5 - 4,0 |
grobkörnige Kieselsäure | 0,5 - 4,0 |
kolloidale Kieselsäure, 30 Gew.%iges Sol | 0,0 - 20,0 |
Verdickungsmittel, 2 Gew.%ige Lösung | 25,0 - 40,0 |
Wasser | Rest bis 100,0 |
Bestandteile der Beschichtungsmasse in Gew.% | Beispiele | |||
B1 | B2 | B3 | B4 | |
Wasser | 53,5 | 39,5 | 61,5 | 37,0 |
Carboxylgruppenhaltige Copolymer-Dispersion, C1 bis C6-Alkylacrylat: Styrol ist 1:1, 49 Gew.%ig (Carboset GA 1086 von B.F. Goodrich) | 6,0 | 9,0 | 3,0 | 5,0 |
Na-Polystyrolsulfonat, 30 Gew.%ig | 2,5 | 2,0 | 3,5 | 3,0 |
Grobkörnige Kieselsäure, 4,9 µm Teilchengröße 0,4 ml/g Porenvolumen, 750 m2/g Oberfläche (Gasil 200 DF von Crosfield Chem.) | 2,0 | 4,0 | 3,0 | 1,0 |
Kolloidale aluminium-modifizierte Kieselsäure 30 Gew.%ig (Ludox AM von Du Pont) | 5,0 | 4,5 | - | 18,0 |
Hydroxyethylcellulose, 2 Gew.% in Wasser (Tylose H 300 von Hoechst) | 30,0 | 40,0 | 28,0 | 35,0 |
Netzmittel, 10 Gew.% in Methanol (Surfynol 440 von Air Reduct. Chem.) | 1,0 | 1,0 | 1,0 | 1,0 |
Auftragsgwicht nach Trocknung in g/m2 | 0,6 | 1,7 | 0,3 | 0,8 |
Bestandteile der Beschichtungsmasse in Gew.% | Vergleichsbeispiele | ||
V1 | V2 | V3 | |
Wasser | 53,5 | 83,5 | 53,2 |
Acrylat-Copolymer aus Beispiel B1 | 6,0 | 6,0 | 6,0 |
Na-Styrolsulfonat aus Beispiel B1 | 2,5 | 2,5 | 2,5 |
Grobkörnige Kieselsäure aus Beispiel B1 | - | 2,0 | 2,0 |
Kolloidale Kieselsäure aus Beispiel B1 | 5,0 | 5,0 | 5,0 |
Hydroxyethylcellulose aus Beispiel B1 | 30,0 | - | 30,0 |
Netzmittel aus Beispiel B1 | 1,0 | 1,0 | 1,0 |
Grobkörnige Kieselsäure, 4,1 µm Teilchengröße, 1,2 ml/g Porenvolumen, 320 m2/g Oberfläche (Gasil 644 M von Crosfield) | 2,0 | - | - |
Trifunktionelles Aziridin, 50 Gew.%ig in Isopropanol als Vernetzungsmittel (Xama 7 von Celanese) | - | - | 0,3 |
Auftragsgewicht nach Trocknung in g/m2 | 0,6 | 0,3 | 0,6 |
Beispiele | Vergleichsbeispiele | ||||||
B1 | B2 | B3 | B4 | V1 | V2 | V3 | |
Oberflächenwiderstand Ω/cm | |||||||
vor Bäderdurchlauf | 9x109 | 4x1010 | 5x109 | 8x109 | 8x109 | 9x109 | 3x1010 |
nach Bäderdurchlauf | 7x1012 | 9x1012 | 1x1013 | 9x1011 | 7x1012 | 6x1012 | 8x1012 |
Bedruckbarkeit | gut | gut | gut | gut | gut | gut | gut |
Bleistiftbeschreibbarkeit | sehr gut | sehr gut | sehr gut | sehr gut | schlecht | sehr gut | sehr gut |
Schmutzaufnahme | keine | keine | keine | keine | sehr gering | sehr gering | gering |
Klebebandhaftung N/15 mm | 1,7 | 1,5 | 2,1 | 1,6 | 1,5 | 2,3 | 2,8 |
Claims (13)
- Trägermaterial für fotografische Schichten in Form eines kunststoffbeschichteten Papieres oder einer Kunststoffolie mit einer Rückseitenschicht, die eine Naphtalinsulfonsäure oder eine organische Polysäure mit freien oder salzartig gebundenen Carbonsäuregruppen oder Sulfongruppen enthält und dadurch gekennzeichnet ist, daß die Rückseitenschicht ferner mindestens besteht auseinem carboxylgruppenhaltigen Acrylat-Copolymer, das zu mehr als 80 Gew.% aus einem oder mehreren der Monomere Acrylsäureester, C1 bis C6-Alkylacrylsäureester und Styrol besteht, wobei die freien Carboxylgruppen des Acrylat-Copolymeren unvernetzt bleiben,einem gut salzverträglichen Verdickungsmittel undeiner grobkörnigen Kieselsäure mit 3 bis 6 µm Teilchengröße < 1ml/g Porenvolumen und > 400 m2/g Oberfläche.
- Trägermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Gewichtsverhältnis Acrylat-Copolymer: organische Polysäure 90 : 10 bis 70 : 30 beträgt.
- Trägermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Gewichtsverhältnis Acrylat-Copolymer: grobkörnige Kieselsäure 90 : 10 bis 40 : 60 beträgt.
- Trägermaterial nach Anspruch 1, dadurch gekennzeichnet, daß zur Herstellung der Rückseitenschicht zusätzlich eine kolloidale aluminiummodifizierte Kieselsäure eingesetzt wird.
- Trägermaterial nach Anspruch 4, dadurch gekennzeichnet, daß das Gewichtsverhältnis Acrylat-Copolymer: aluminiummodifizierte Kieselsäure 100 : 0 bis 30 : 70 beträgt.
- Trägermaterial nach Anspruch 1, dadurch gekennzeichet, daß die organische Polysäure eine freie Säure oder das Alkalisalz einer freien Säure vom Typ Polyacrylsäure oder Polystyrolsulfonsäure ist.
- Trägermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das gut salzverträgliche Verdickungsmittel Hydroxyethylcellulose oder ein wasserlösliches carboxylgruppenhaltiges Copolymer auf Acrylatbasis ist.
- Trägermaterial nach Anspruch 1, dadurch gekennzeichnet, daß die Rückseitenschicht ein Flächengewicht von 0,2 bis 2,0 g/m2 besitzt.
- Beschichtungsmasse zur Herstellung einer Rückseitenschicht auf einem Trägermaterial für fotografische Schichten, welches aus einem kunststoffbeschichteten Papier oder einer Kunststoffolie besteht, wobei die Beschichtungsmasse Naphtalinsulfonsäure oder organische Polysäure mit freien oder salzartig gebundenen Carbonsäuregruppen oder Sulfonsäuregruppen enthält und dadurch gekennzeichnet, ist, daß die Beschichtungsmasse ferner mindestens die folgenden Komponenten enthält:Carboxylgruppenhaltiges Acrylat-Copolymer, das zu mehr als 80 Gew.% aus einem oder mehreren der Monomere Acrylsäureester, C1 bis C6-Alkylacrylsäureester und Styrol besteht, wobei die freien Carboxylgruppen des Acrylat-Copolymeren unvernetzt bleiben,gut salzverträgliches Verdickungsmittel undgrobkörnige Kieselsäure mit 3 bis 6 µm Teilchengröße, 1 ml/g Porenvolumen und > 400 m2/g Oberfläche.
- Beschichtungsmasse nach Anspruch 9, dadurch gekennzeichnet, daß die Beschichtungsmasse zusätzlich kolloidale, aluminiummodifizierte Kieselsäure enthält.
- Beschichtungsmasse nach Anspruch 9, dadurch gekennzeichnet, daß die organishe Polysäure eine freie Säure oder das Akalisalz einer freien Säure vom Typ Polyacrylsäure oder Polystyrolsulfonsäure ist.
- Beschichtungsmasse nach Anspruch 9, dadurch gekennzeichnet, daß das gut salzverträgliche Verdickungsmittel Hydroxyethylcellulose oder ein wasserlösliches carboxylgruppenhaltiges Copolymer auf Acrylatbasis ist.
- Beschichtungsmasse nach Anspruch 9 und 10, dadurch gekennzeichnet, daß die Einzelkomponenten in folgenden Gewichtsverhältnissen vorliegen:
Gew.% Acrylat-Copolymer, 50 Gew.%ige Dispersion 3,0 - 10,0 Organische Polysäure, 30 Gew.%ige Lösung 1,5 - 4,0 Verdickungsmittel, 2 Gew.%ige Lösung 25,0 - 40,0 grobkörnige Kieselsäure 0,5 - 4,0 kolloidale Kieselsäure, 30 Gew.%iges Sol 0,0 - 20,0 Wasser Rest bis 100,0
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4428941 | 1994-08-16 | ||
DE4428941A DE4428941C2 (de) | 1994-08-16 | 1994-08-16 | Schichtträger für fotografische Aufzeichnungsmaterialien |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0697620A1 EP0697620A1 (de) | 1996-02-21 |
EP0697620B1 true EP0697620B1 (de) | 1998-03-25 |
Family
ID=6525755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95112373A Expired - Lifetime EP0697620B1 (de) | 1994-08-16 | 1995-08-06 | Fotografisches Trägermaterial mit Rückseitenschicht |
Country Status (4)
Country | Link |
---|---|
US (1) | US5756200A (de) |
EP (1) | EP0697620B1 (de) |
JP (1) | JP3430232B2 (de) |
DE (2) | DE4428941C2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10111545A (ja) * | 1996-10-08 | 1998-04-28 | Konica Corp | ハロゲン化銀写真感光材料 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS634231A (ja) | 1986-06-24 | 1988-01-09 | Oji Paper Co Ltd | 写真印画紙用支持体 |
DE3700183A1 (de) * | 1987-01-06 | 1988-07-14 | Schoeller F Jun Gmbh Co Kg | Antistatisches fotographisches traegermaterial |
DE3735871A1 (de) * | 1987-10-23 | 1989-05-03 | Schoeller F Jun Gmbh Co Kg | Fotografisches traegermaterial fuer lichtempfindliche schichten in form eines kunststoffbeschichteten papiers oder einer kunststoffolie mit einer rueckseitenbeschichtung |
US5064717A (en) * | 1989-04-28 | 1991-11-12 | Kanzaki Paper Manufacturing Co., Ltd. | Adhesive sheet |
DE4101475A1 (de) * | 1991-01-19 | 1992-07-23 | Schoeller F Jun Gmbh Co Kg | Beschichtungsmasse fuer die rueckseite fotografischer traegermaterialien und verfahren zu ihrer herstellung |
DE4308274C2 (de) * | 1993-03-16 | 1996-07-18 | Schoeller Felix Jun Papier | Schichtträger für fotografische Aufzeichnungsmaterialien |
-
1994
- 1994-08-16 DE DE4428941A patent/DE4428941C2/de not_active Expired - Lifetime
-
1995
- 1995-08-06 EP EP95112373A patent/EP0697620B1/de not_active Expired - Lifetime
- 1995-08-06 DE DE59501690T patent/DE59501690D1/de not_active Expired - Fee Related
- 1995-08-16 JP JP23079995A patent/JP3430232B2/ja not_active Expired - Fee Related
-
1997
- 1997-04-22 US US08/841,471 patent/US5756200A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE4428941A1 (de) | 1996-02-22 |
DE4428941C2 (de) | 1998-04-16 |
US5756200A (en) | 1998-05-26 |
JPH08171174A (ja) | 1996-07-02 |
DE59501690D1 (de) | 1998-04-30 |
EP0697620A1 (de) | 1996-02-21 |
JP3430232B2 (ja) | 2003-07-28 |
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