EP0253911A1 - Support photographique en papier et son procédé de fabrication - Google Patents

Support photographique en papier et son procédé de fabrication Download PDF

Info

Publication number
EP0253911A1
EP0253911A1 EP86110061A EP86110061A EP0253911A1 EP 0253911 A1 EP0253911 A1 EP 0253911A1 EP 86110061 A EP86110061 A EP 86110061A EP 86110061 A EP86110061 A EP 86110061A EP 0253911 A1 EP0253911 A1 EP 0253911A1
Authority
EP
European Patent Office
Prior art keywords
photographic
support material
polyolefin
photographic support
material according
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.)
Granted
Application number
EP86110061A
Other languages
German (de)
English (en)
Other versions
EP0253911B1 (fr
Inventor
Wolfram Chem.-Ing. Wysk (Grad.)
Bernd Dipl.-Ing. Scholz
Ralf-Burckhard Dr. Dipl.-Chem. Dethlefs
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
Felex Schoeller Jr and GmbH and Co KG
Original Assignee
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Felex Schoeller Jr and GmbH and Co KG
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, Felex Schoeller Jr and GmbH and Co KG filed Critical Felix Schoeller Jr Foto und Spezialpapiere GmbH
Priority to DE8686110061T priority Critical patent/DE3668995D1/de
Priority to AT86110061T priority patent/ATE50369T1/de
Priority to EP86110061A priority patent/EP0253911B1/fr
Priority to JP61278934A priority patent/JPH0660992B2/ja
Priority to HU871855A priority patent/HU201581B/hu
Priority to ES8701428A priority patent/ES2003722A6/es
Priority to AU72932/87A priority patent/AU594153B2/en
Priority to CN87104888.4A priority patent/CN1031299C/zh
Priority to US07/072,406 priority patent/US4895757A/en
Priority to YU133187A priority patent/YU45949B/sh
Priority to GR871154A priority patent/GR871154B/el
Publication of EP0253911A1 publication Critical patent/EP0253911A1/fr
Application granted granted Critical
Publication of EP0253911B1 publication Critical patent/EP0253911B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
    • 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
    • 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]
    • Y10T428/31725—Of polyamide
    • Y10T428/3175—Next to addition polymer from unsaturated monomer[s]
    • Y10T428/31757—Polymer of monoethylenically unsaturated hydrocarbon
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y10T428/31895—Paper or wood
    • Y10T428/31899—Addition polymer of hydrocarbon[s] only
    • Y10T428/31902—Monoethylenically unsaturated
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • 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]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31989—Of wood

Definitions

  • the invention relates to a photographic paper support which is coated with a waterproof pigment-containing polyolefin layer.
  • waterproof photographic paper supports consist of a base paper with synthetic resin coatings applied on both sides.
  • the resin coatings on the base paper can be made of polyolefin, e.g. Polyethylene, exist and have been applied to the paper by means of extrusion coating, but they can also be composed of organic lacquer mixtures which are layered onto the paper by means of immersion or spray processes and solidified by means of high-energy radiation.
  • One or more photosensitive coatings based on silver halide are applied to one of the synthetic resin layers.
  • the light-sensitive layers can be black and white as well as color photographic layers.
  • the synthetic resin coating (front coating) arranged under the light-sensitive layers usually contains light-reflecting white pigment and, if appropriate, color pigments, optical brighteners and / or other additives such as antistatic compounds, dispersants for the white pigment and antioxidants.
  • the synthetic resin film (backside coating) arranged on the paper side opposite the light-sensitive layers can be pigmented or unpigmented and / or contain other additives which result from the respective use of the laminate as a photographic support.
  • This layer can also be coated with other functional layers (for example layers for writing, antistatic layers, sliding layers, adhesive layers or antihalation layers as well as layers for flatness).
  • the coating of a photographic base paper with polyolefin by extrusion through a slot die is a known process.
  • the polyolefin extrusion coating occurs at a point where the paper web enters the nip between a cooling roll and a rubber roll through which the polyolefin layer is adhered to the paper web.
  • the cooling roller also serves to design the surface structure of the polyolefin layer. Depending on the nature of the cooling roller surface, shiny, matt or structured, e.g. silky, polyolefin surfaces can be produced.
  • the rhythmic detachment of the polyolefin film which is not entirely uniform, also leads to a deterioration in the desired, uniformly high-gloss surface finish of the polyolefin film.
  • There are hair-like elevations across the paper web which are visible under the influence of light in the border area of total reflection, but cannot be detected by surface measurements, and which occur at a distance of about 1 mm from each other.
  • release agent to the polyolefin in order to reduce the adhesion of the polyolefin layer to the cooling roller and to achieve a uniformly easy separation of the extruded film.
  • release agents include the metal salts of fatty acids mentioned in Japanese Patent Laid-Open JP 32 442/1982, JP 46 818/1982 and JP 46 819/1982, e.g. Zinc or magnesium stearate.
  • amides such as e.g. Use oleamide and erucic acid amide, but also polyolefin waxes and stearin as release agents.
  • these release agents have to be used in the usual pigment-containing polyolefin mixtures in relatively high concentrations (0.5 - 2%) in order to achieve the desired effect.
  • These high concentrations not only reduce the adhesion of the polyolefin to the chill roll in a manner that is desirable per se, but also significantly weaken the adhesion of the polyolefin to the paper carrier. This results in disadvantages in the further processing of the photographic support, for example in the form of detachment of the polyolefin layer from the paper when subjected to stress in the photographic process solutions or even during the coating with the photographic layers.
  • these release agents for example stearic acid, stearates or stearic acid amide, sweat profusely at the extrusion temperatures Polyolefin melt, so that there is drop formation and then visible, grease-stained deposits on the polyolefin layer.
  • polyethylene glycols with a molecular weight of 400 to 4000 can be suitable release agents in order to facilitate the detachment of unpigmented low density polyethylene types from the cooling roll of an extrusion coating system.
  • 500 - 600 ppm of polyethylene glycol for 0.924 density polyethylene and 900 to 1200 ppm of polyethylene glycol for 0.915 density polyethylene are mentioned as additional amounts.
  • polyalkylene oxides are known to the person skilled in the art as substances which sensitize photographic silver salt layers. (Neblette's Handbook of Photography and Reprography, 1977). As a result, their use in the support material appeared fundamentally undesirable because the migration from there to the photographic layers cannot be controlled. On the other hand, it is known that polyalkylene oxides attach to the pigment surface and make it hydrophilic.
  • the object of the invention is therefore to provide a polyolefin-coated carrier material with a high-gloss surface of the pigment-containing polyolefin coating, in which the pigment-containing polyolefin layer is easily and uniformly detached from the high-gloss cooling roller and nevertheless adheres well to the base paper and has no effect on the sensitivity of overlying photographic layers.
  • a photographic base paper is coated on the side lying first of the photographic layers with a polyolefin mixture which contains at least one polyoxyalkylene glycol in addition to polyolefin and white pigment.
  • the pigmented polyolefin mixture contains, in addition to polyalkylene oxide, a fatty acid soap of a polyvalent metal or a fatty acid amide.
  • polyolefins are used to coat a photographic base paper, e.g. Polyethylene, polypropylene or an olefin copolymer individually or as a mixture in question.
  • the preferred coating resin is polyethylene, which can be used with both high and low density, and as a blend of both types.
  • preferred white pigment is a titanium dioxide or a mixture of titanium dioxide with another white pigment or filler. Small amounts of colored pigments, dyes, optical brighteners or other known additives may also be present.
  • the polyolefin coating composition can be applied to one or both sides of the paper.
  • the application is carried out by means of extrusion coating using a slot die at temperatures of 270 to 330 ° C.
  • the paper base to be coated with a polyethylene mixture containing pigment according to the invention can be any photographic base paper which is either neutral sized using alkyl ketene dimer or has a known acidic size based on precipitated resin or fatty acid soaps.
  • the base paper can be made exclusively from cellulose fibers or from mixtures of cellulose fibers with synthetic fibers. It can have a basis weight of 60 to 300 g / m2 (preferably 70 to 200 g / m2) and contain a surface sizing in addition to the inside sizing.
  • General a photographic base paper is understood to mean a bright white paper with a uniform transparency, which is secured against penetration of the photographic treatment solutions by a special strong sizing and yet shows no photochemical effects on photographic layers.
  • the polyoxyalkylene glycol added to the polyolefin / pigment mixture is preferably a polyethylene glycol with a molecular weight between 100 and 35,000, preferably between 400 and 20,000, or a polypropylene glycol with a molecular weight between 400 and 10,000, preferably between 2,000 and 10,000.
  • the polyoxyalkylene glycol used as a release agent can be added to the polyethylene mixture in any known manner, but it is preferred to introduce the polyoxyalkylene glycol via a premix (masterbatch).
  • the amount of polyoxyalkylene glycol used is between 40 ppm and 1% based on the total amount of polyethylene, but preferably between 100 ppa and 0.5%.
  • the formation of the transverse markings is completely avoided, but the adhesion of the polyolefin film to the base paper is not adversely affected.
  • the effect according to the invention is achieved even at the very low release agent concentration of 40 ppm polyoxyalkylene glycol based on the total amount of the polyethylene / pigment mixture.
  • the release agents already described for use in photographic supports only take effect at much higher concentrations.
  • the effect according to the invention is retained over a large concentration range without visible exudates.
  • the entire range ie also at concentrations of 0.5 to 1%, in which the release agents usually used are introduced, when using polyether glycols according to the invention the polyethylene film easily detaches from the cooling roller and the adhesion of the polyethylene film to the paper carrier remains good to satisfactory, whereas in the case of the previously known release agents the defects already described occur.
  • the cooling roller is not contaminated by sticking on short-chain polyolefin constituents, nor is there any drop formation and the associated contamination of the extruded polyolefin film by excessively exudated release agent, nor are changes in sensitivity observed in overlying photographic layers.
  • polyoxyalkylene glycol amounts of less than 40 ppm, based on the total amount of the polyethylene mixture, are used, however, the detachment of the polyethylene film from the chill roll is clearly worse than described according to the invention and the markings described appear in the surface of the photographic support material.
  • the separation of the polyethylene film from the cooling roller takes place easily and uniformly, but adequate adhesion to the paper carrier is generally no longer ensured.
  • the photographic base paper is coated with a white pigment-containing polyolefin mixture which, in addition to a polyoxyalkylene glycol, also contains a fatty acid salt of a polyvalent metal, for example Al stearate, Mg stearate, Zn stearate or the like, or a fatty acid amide.
  • a white pigment-containing polyolefin mixture which, in addition to a polyoxyalkylene glycol, also contains a fatty acid salt of a polyvalent metal, for example Al stearate, Mg stearate, Zn stearate or the like, or a fatty acid amide.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
EP86110061A 1986-07-22 1986-07-22 Support photographique en papier et son procédé de fabrication Expired - Lifetime EP0253911B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DE8686110061T DE3668995D1 (de) 1986-07-22 1986-07-22 Fotografischer papiertraeger und verfahren zu seiner herstellung.
AT86110061T ATE50369T1 (de) 1986-07-22 1986-07-22 Fotografischer papiertraeger und verfahren zu seiner herstellung.
EP86110061A EP0253911B1 (fr) 1986-07-22 1986-07-22 Support photographique en papier et son procédé de fabrication
JP61278934A JPH0660992B2 (ja) 1986-07-22 1986-11-25 写真用担体材料およびその製造法
HU871855A HU201581B (en) 1986-07-22 1987-04-27 Photographic carrier metters
ES8701428A ES2003722A6 (es) 1986-07-22 1987-05-13 Material de soporte fotografico y procedimiento para fabricar dicho material
AU72932/87A AU594153B2 (en) 1986-07-22 1987-05-14 Photographic carrier paper and method for its manufacture
CN87104888.4A CN1031299C (zh) 1986-07-22 1987-06-10 照相纸质载体及其制造方法
US07/072,406 US4895757A (en) 1986-07-22 1987-07-13 Photographic paper support manufacture
YU133187A YU45949B (sh) 1986-07-22 1987-07-16 Fotografski papirni nosač i postupak za njegovu proizvodnju
GR871154A GR871154B (en) 1986-07-22 1987-07-21 Photographic paper carrier and production method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86110061A EP0253911B1 (fr) 1986-07-22 1986-07-22 Support photographique en papier et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP0253911A1 true EP0253911A1 (fr) 1988-01-27
EP0253911B1 EP0253911B1 (fr) 1990-02-07

Family

ID=8195285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110061A Expired - Lifetime EP0253911B1 (fr) 1986-07-22 1986-07-22 Support photographique en papier et son procédé de fabrication

Country Status (11)

Country Link
US (1) US4895757A (fr)
EP (1) EP0253911B1 (fr)
JP (1) JPH0660992B2 (fr)
CN (1) CN1031299C (fr)
AT (1) ATE50369T1 (fr)
AU (1) AU594153B2 (fr)
DE (1) DE3668995D1 (fr)
ES (1) ES2003722A6 (fr)
GR (1) GR871154B (fr)
HU (1) HU201581B (fr)
YU (1) YU45949B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362823A2 (fr) * 1988-10-04 1990-04-11 Fuji Photo Film Co., Ltd. Papier pour des applications photographiques

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716269C2 (de) * 1987-05-15 1993-12-09 Schoeller Felix Jun Papier Wasserfester Schichtträger für lichtempfindliche Aufzeichnungsmaterialien
JP2711483B2 (ja) * 1991-03-20 1998-02-10 富士写真フイルム株式会社 写真印画紙用支持体
DE4110622C2 (de) * 1991-04-02 1995-12-21 Schoeller Felix Jun Papier Polyolefin-beschichteter Schichtträger für fotografische Aufzeichnungsmaterialien
JPH05323495A (ja) * 1992-03-17 1993-12-07 Fuji Photo Film Co Ltd 写真印画紙用支持体
US5464691A (en) * 1994-07-22 1995-11-07 Arizona Chemical Company Laminated barrier film
US6312822B1 (en) * 1998-05-28 2001-11-06 Eastman Chem Co Dispersion aids for optical brighteners in polyolefins
US6416626B1 (en) * 2000-09-28 2002-07-09 Weyerhaeuser Company Polyethylene glycol-containing paper

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2050288A1 (de) * 1969-10-24 1971-05-06 Eastman Kodak Co , Rochester, N Y (V St A) Photographisches Aufzeichnungsmaterial
US3778404A (en) * 1970-06-19 1973-12-11 Nat Distillers Chem Corp Hot melt coating composition and method
DE2338818A1 (de) * 1972-08-01 1974-02-14 Diamond Shamrock Corp Schmiermittel fuer papierueberzuege

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222314A (en) * 1956-06-20 1965-12-07 Du Pont Polyethylene resin containing a solid polyethylene glycol
JPS5843734A (ja) * 1981-09-04 1983-03-14 冨士島工機株式会社 ケ−キ類切断装置
JPH0234371B2 (ja) * 1981-11-10 1990-08-02 Fuji Photo Film Co Ltd Shashiningashoshijitai
DE3300025A1 (de) * 1983-01-03 1984-07-05 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfester fotografischer papiertraeger
JPS59228249A (ja) * 1983-06-09 1984-12-21 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
DE3328463A1 (de) * 1983-08-06 1985-02-21 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Fotografischer papiertraeger
DE3543597A1 (de) * 1985-12-10 1987-06-11 Schoeller F Jun Gmbh Co Kg Wasserfester fotografischer papiertraeger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2050288A1 (de) * 1969-10-24 1971-05-06 Eastman Kodak Co , Rochester, N Y (V St A) Photographisches Aufzeichnungsmaterial
US3778404A (en) * 1970-06-19 1973-12-11 Nat Distillers Chem Corp Hot melt coating composition and method
DE2338818A1 (de) * 1972-08-01 1974-02-14 Diamond Shamrock Corp Schmiermittel fuer papierueberzuege

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAPPI, Band 53, Nr. 10, Oktober 1970, Seiten 1900-1904, Atlanta, Georgia, US; G.B. KELLY, Jr. et al.: "Study of polyethylene glycols as lubricants for paper coatings" *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362823A2 (fr) * 1988-10-04 1990-04-11 Fuji Photo Film Co., Ltd. Papier pour des applications photographiques
EP0362823A3 (en) * 1988-10-04 1990-10-31 Fuji Photo Film Co., Ltd. Paper for photograph

Also Published As

Publication number Publication date
DE3668995D1 (de) 1990-03-15
JPH0660992B2 (ja) 1994-08-10
EP0253911B1 (fr) 1990-02-07
JPS6330841A (ja) 1988-02-09
CN1031299C (zh) 1996-03-13
AU7293287A (en) 1988-01-28
YU133187A (en) 1988-10-31
HU201581B (en) 1990-11-28
ATE50369T1 (de) 1990-02-15
ES2003722A6 (es) 1988-11-01
GR871154B (en) 1987-08-20
CN87104888A (zh) 1988-02-03
YU45949B (sh) 1992-09-07
US4895757A (en) 1990-01-23
AU594153B2 (en) 1990-03-01
HUT44103A (en) 1988-01-28

Similar Documents

Publication Publication Date Title
EP0114973B1 (fr) Papier photographique résistant à l'eau
DE69822564T2 (de) Vorbeschichtete, fixierte Kunststoffpartikel als schützende Deckschicht für farbfotografische Prints
DE2940870A1 (de) Photographischer papiertraeger mit verbesserter haltbarkeit
EP0438621B1 (fr) Composition de revêtement pour la face arrière d'un support photographique
DE3434591A1 (de) Lichtempfindliches photographisches silberhalogenid-aufzeichnungsmaterial
DE3043864C2 (fr)
EP0616252A2 (fr) Support photographique
DE3716269C2 (de) Wasserfester Schichtträger für lichtempfindliche Aufzeichnungsmaterialien
EP0253911B1 (fr) Support photographique en papier et son procédé de fabrication
DE2309076A1 (de) Beschichtungsmasse fuer die herstellung von strahlungsempfindlichen aufzeichnungsmaterialien
DE3046130C2 (fr)
EP0259548B1 (fr) Support photographique en papier avec un revêtement polyoléfinique résistant à l'eau
DE2931460C2 (de) Photographisches Aufzeichnungsmaterial
EP0225446A1 (fr) Support photographique en papier résistant à l'eau
EP0312638B1 (fr) Matériau photographique support pour couches sensibles à la lumière sous la forme d'un papier enduit d'une couche de matière plastique ou une feuille plastique avec un enduit d'arrière-couche antistatique et permettant l'inscription
DE3720518C2 (fr)
DE68921333T2 (de) Verfahren zur Herstellung eines Trägerblattes für Photopapiere.
EP0219615B1 (fr) Support en papier résistant à l'eau pour usages photographiques
DE3015023A1 (de) Photographisches traegerpapier und verfahren zu seiner herstellung
EP0069927B1 (fr) Papier de protection contre la lumière pour pellicule photographique
EP0496037A1 (fr) Masse de revêtement pour le coté arrière d'un support photographique et procédé de fabrication
DE1772380A1 (de) Photographisches Filmmaterial mit verbesserten antistatischen Eigenschaften sowie antistatisch wirkende Mittel zur Herstellung desselben
DE3537415A1 (de) Photographischer papiertraeger
DE4308440A1 (de) Fotografischer Schichtträger
DE2035015B2 (de) Photographischer film mit einem schichttraeger, einer lichtempfindlichen halogensilber-gelatine-emulsionsschicht auf der vorderseite des traegers und schutzschichten auf der rueckseite des traegers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19880213

17Q First examination report despatched

Effective date: 19881017

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 50369

Country of ref document: AT

Date of ref document: 19900215

Kind code of ref document: T

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3668995

Country of ref document: DE

Date of ref document: 19900315

ITTA It: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19920520

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19920622

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19920727

Year of fee payment: 7

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930722

Ref country code: AT

Effective date: 19930722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930723

EUG Se: european patent has lapsed

Ref document number: 86110061.8

Effective date: 19940210

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970616

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970620

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970622

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19970624

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19970627

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19970630

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980731

BERE Be: lapsed

Owner name: FELIX SCHOELLER JR G.M.B.H. & CO. K.G.

Effective date: 19980731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990331

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19990201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050722