EP0609648B1 - Support recyclable - Google Patents

Support recyclable Download PDF

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Publication number
EP0609648B1
EP0609648B1 EP94100040A EP94100040A EP0609648B1 EP 0609648 B1 EP0609648 B1 EP 0609648B1 EP 94100040 A EP94100040 A EP 94100040A EP 94100040 A EP94100040 A EP 94100040A EP 0609648 B1 EP0609648 B1 EP 0609648B1
Authority
EP
European Patent Office
Prior art keywords
support material
layer
radiation
weight
polymeric
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
EP94100040A
Other languages
German (de)
English (en)
Other versions
EP0609648A1 (fr
Inventor
Wieland Dr. Sack
Dr. Krauss
Reiner Prof. Dr. Mehnert
Peter Dipl.-Ing. Klenert
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 EP0609648A1 publication Critical patent/EP0609648A1/fr
Application granted granted Critical
Publication of EP0609648B1 publication Critical patent/EP0609648B1/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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/24—Removing emulsion from waste photographic material; Recovery of photosensitive or other substances
    • 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
    • Y10T428/254—Polymeric or resinous material

Definitions

  • the invention relates to a recyclable substrate a cellulosic, sheet-like carrier and at least one polymeric, waterproof layer, and a method for Recycle a layer material.
  • a substrate that is used frequently is one Combination of thermoplastic polymers, usually one Combination of thermoplastic polymers, mostly polyethylene, and paper.
  • Known products of this type are e.g. Beverage packaging and photo carrier material. Procedure of their Recycle break down these substrates into individual ones Components in order to obtain them in the purest form possible and accessible for reuse in separate processes close. This is described, for example, in DE-OS 41 05 368 and DE-OS 40 42 225.
  • EP 0 131 893 is a photographic support material known that is coated with a radiation-curable polymer.
  • the polymer layer can contain inorganic white pigments, which to improve the dispersibility with organic or inorganic materials can.
  • EP 0 114 973 describes a photographic Paper backing used to improve water and Scratch resistance with a radiation-hardened pigment-containing Lacquer layer is covered.
  • the pigments used include Titanium dioxide with organic surface treatment and with calcium resinate Surface-treated calcium carbonate is used.
  • the radiation-crosslinked layers cannot be subtract from the cellulose-containing carrier, for example the thermoplastic polyethylene. They are also not resolvable in aqueous or organic solvents and in one mechanical crushing of the layer material fall either too coarse fragments, or the crushing process must be carried out so intensely that the fibers of the cellulose-containing carrier lose their functionality.
  • This task is solved by a layer material from one cellulosic sheet carrier and at least one waterproof, radiation-crosslinked, polymeric layer, the polymeric layer at least one radiation-crosslinked binder and a solid that can only be anchored to a limited extent exists and the limited anchorable solid in one Quantity of at least 3% by weight based on the total weight the polymeric layer is included.
  • the materials used as radiation-crosslinkable binders are usually lacquers made from monomers, oligomers or prepolymers however, from mixtures of these groups. Above all, they serve Monomers as diluents. Monomers can be beneficial to be dispensed with if the coating masses are increased Temperature, preferably 30 to 60 ° C, are processed.
  • Solids that have limited anchorage in the find radiation-crosslinkable binders are those which are used in Binder system (paint) are very difficult or insoluble and e.g. due to a very smooth surface, a low one Affinity for the binder, a high wetting angle - relative to the binder - or a dehesive character award.
  • Solids effective according to the invention are e.g. Strengths and Starch derivatives, gelatin, microcrystalline cellulose and Cellulose ethers, mannogalactans, polyvinyl alcohol, polyacrylamide, Polyvinylden chloride, polyolefin waxes, polyamides, melamine or Urea formaldehyde resins.
  • the limited changeable solid can for example an organic pigment.
  • the radiation crosslinked layer can contain up to 80% by weight. of the limited anchorable solid.
  • inorganic pigments white pigments
  • fillers Improve the recyclability of such layers, however only to a significantly lesser extent than those according to the invention Solids. If a radiation-crosslinked layer is already high Contents of> 50% by weight of e.g. White pigments, then 3% by weight of solid according to the invention are sufficient, while for layers that are free of inorganic pigments are at least 10% by weight of the solid according to the invention are needed.
  • Such inorganic white pigments or fillers which in Amounts up to 80% by weight in the polymeric waterproof Layer may be present are carbonates, oxides, Sulfates or sulfites of the elements calcium, magnesium, Barium, strontium, tin or titanium.
  • Inorganic pigments from products according to the invention are completely encased and in radiation-crosslinkable Binders will find only a limited anchor considered as substances according to the invention.
  • Solids are considered those in water are swellable. These are e.g. Starch, gelatin, Mannogalactans, cellulose ether, polyvinyl alcohol, Polyacrylamide.
  • the layers can contain up to 20% by weight of others Auxiliaries such as dispersants, dyes, antistatic agents, optical brighteners, matting agents, fragrances, leveling agents, Defoamers etc. included.
  • the radiation-crosslinkable binders are made by high-energy Radiation cross-linked. This radiation can be a Be electron radiation or UV radiation. At the Use of UV lamps must contain the binder photoinitiators are added to the formation of radicals that the Start the crosslinking reaction.
  • the finished mixture can be used with conventional applicators such as scraper or gap metering systems, anilox rollers or Multi-roller systems applied to the substrate become.
  • conventional applicators such as scraper or gap metering systems, anilox rollers or Multi-roller systems applied to the substrate become.
  • the organic binder To mix the (lacquer) phase with the aqueous swelling agent phase that a layer created on paper or Carton with very good adhesion, flexibility and surface can be generated. Manufactured in this way Layered materials have clear advantages in recycling process described here.
  • the organic binder phase add aqueous dispersions of microspheres. Also these mixtures gave better radiation-crosslinked layers Quality and uniformity. The so produced Layer materials were also excellent recycle.
  • Process steps 1 and 2 and Steps 2 and 3 can advantageously be one Sorting e.g. using a vortex sifter or pipe centrifuge or turboperator are used to remove Impurities and foreign matter.
  • Sorting e.g. using a vortex sifter or pipe centrifuge or turboperator are used to remove Impurities and foreign matter.
  • the first step in the recycling process is advantageous in an alkaline aqueous solution performed using bleach Solids content between 10 and 30 wt .-%. At the end of this Process step, the solution is neutralized.
  • the second process step is advantageous for easy elevated temperatures, in the range 30 - 60 ° C.
  • Such recyclable substrates made of cellulose Carrier and applied on one or both sides find radiation-crosslinked, waterproof layers diverse use.
  • They can be used as a substrate for photosensitive photographic emulsion layers or as a base material serve for image receiving layers which are due to thermal, electrostatic, magnetographic Processes using color reactions, Dye diffusion, toner adhesion, separation of layers Silver salt diffusion or reduction reactions, or by Splashing inks, creating images.
  • the resins too radiation-crosslinkable binders can be used as decor, core or overlay paper.
  • thermoplastics and / or foils e.g. Polyethylene plus aluminum foil for Packaging materials are used.
  • release agents such as silicones as Dehesive, release or idler paper can be used.
  • binder Titanium dioxide Others 1c 50% by weight 40% by weight 10% by weight rice starch 1d 50% by weight 30% by weight 20% by weight rice starch 1e 45% by weight 30% by weight 25% by weight microspherical dispersion 1f 70% by weight 0% by weight 30% by weight CMC pre-swelling
  • the binder listed in the table is a mixture of: 44% by weight aliphatic urethane acrylate 40% by weight Tripropylene glycol diacrylate 16% by weight Polyester acrylate
  • Samples 1c to 1f were in an electron beam curing system at 20 m / min. Machine speed and 20 kJ / kg energy dose hardened under inert gas (nitrogen).
  • Example 2a is a comparison.
  • Pre-crushed strips (4. 12 cm) of the patterns are / min at 12.5% consistency with the addition of 2.25% of active chlorine and 2.00% sodium hydroxide at 50 ° C in a pulper with Helico rotor, 730 U. frayed. Samples are taken after every 15 minutes, the excess chlorine content is bound with sodium sulfite and the remaining speck content is measured with the Brecht / Holl device.
  • the residual speck value was determined from examples 2.
  • Some of the examples of the invention were also Samples coated on both sides of the base paper manufactured and tested. The test results were only insignificantly changed compared to the one-sided coated samples.
  • the remaining speck content shows the quick recyclability of the samples according to the invention.
  • the results after 15 Minutes are much better than that of Compare after 45 minutes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Claims (25)

  1. Support de couche recyclable constitué d'un support cellulosique en forme de bandes et d'au moins une couche polymère durcie par le rayonnement et résistant à l'eau, caractérisé en ce que la couche polymère est constituée d'au moins un liant durci par le rayonnement et d'une matière soluble fixable à celui-ci seulement de manière limitée et que la matière solide fixable de manière limitée est présente en quantités d'au moins 3% en poids rapportée au poids total de la couche polymère.
  2. Support de couche selon la revendication 1, caractérisé en ce que la matière solide fixable de matière limitée est une matière solide gonflable dans l'eau.
  3. Support de couche selon la revendication 1, caractérisé en ce que la matière solide fixable de manière limitée est formée de microbilles.
  4. Support de couche selon la revendication 1, caractérisé en ce que la matière solide fixable de manière limitée est un pigment organique.
  5. Support de couche selon les revendications 1 à 4, caractérisé en ce que la matière solide fixable de manière limitée est un amidon, un dérivé de l'amidon, la gélatine, la cellulose microcristalline, un éther cellulosique, la manogalactane, l'alcool polyvinylique, le polyacrylamide, le chlorure de polyvinylidène, la cire de polyoléfine, le polyamide, la résine de mélamine et la résine d'urée.
  6. Support de couche selon les revendications 1 à 5, caractérisé en ce que la matière solide fixable de manière limitée présente une structure uniforme et à grains fins.
  7. Support de couche selon les revendications 1 à 6, caractérisé en ce que la couche polymère durcie par le rayonnement et résistant à l'eau contient de 3 à 80% en poids, rapporté au poids total de la couche de matière solide fixable de manière limitée.
  8. Support de couche selon les revendications 1 à 7, caractérisé en ce que le liant durci par le rayonnement provient d'au moins de monomères, d'holigomère et/ou de prépolymères.
  9. Support de couche selon les revendications 1 à 7, caractérisé en ce que le liant durci par le rayonnement est préparé sans utilisation de monomère.
  10. Support de couche selon les revendications 1 à 9, caractérisé en ce que le liant durci par le rayonnement est réticulé par un ou plusieurs composés réticulables de vinyle, d'allyle, d'acryle et/ou de méthacryle.
  11. Support de couche selon les revendications 1 à 10, caractérisé en ce que le liant durci par le rayonnement est un vernis durci dont le durcissement est réalisé par un rayonnement riche en énergie qui est un rayonnement électronique ou un rayonnement ultraviolet.
  12. Support de couche selon les revendications 1 à 11, caractérisé en ce que la couche polymère résistant à l'eau contient en outre jusqu'à 80% en poids de pigments blancs inorganiques.
  13. Support de couche selon la revendication 12, caractérisé en ce que les pigments blancs sont des carbonates, des oxydes, des sulfates ou des sulfites des éléments calcium, magnésium, baryum, strontium, zinc ou titane.
  14. Support de couche selon les revendications 12 et 13, caractérisé en ce que le pigment blanc est du dioxyde de titane.
  15. Support de couche selon les revendications 1 à 11, caractérisé en ce que la couche polymère résistant à l'eau contient jusqu'à 20% en poids d'adjuvants supplémentaires tels qu'agents de dispersion, colorants, agents antistatiques, agents de blanchiment optique, agents de mattage, aromates, lubrifiants et agents antimousse.
  16. Support de couche selon les revendications 1 à 15, caractérisé en ce que la matière solide fixable de manière limitée dans la couche polymère résistant à l'eau est gonflée et homogénéisée dans l'eau avant l'addition au liant durcissable par le rayonnement.
  17. Support de couche selon les revendications 1 à 16, caractérisé en ce que la matière solide fixable de manière limitée dans la couche polymère résistant à l'eau se présente sous forme d'une dispersion aqueuse avant l'addition au liant durcissable par le rayonnement.
  18. Procédé de recyclage d'un support de couche selon les revendications 1 à 17 dans un système aqueux, caractérisé en ce que le support de couche est soumis au moins à l'une des étapes de procédé suivantes:
    reprise et broyage dans un dissolveur
    défibrage et broyage dans un défibreur
    mélange du matériau ainsi préparé à de la matière de papier vierge.
  19. Procédé selon la revendication 18, caractérisé en ce qu'un triage est effectué entre les différentes étapes du procédé.
  20. Procédé selon les revendications 18 et 19, caractérisé en ce que, avant le mélange du matériau traité dans la matière de papier vierge, les fragments de couche sont séparés des fibres de cellulose pure par flottation ou classification, sont soumis à un broyage fin et sont réintroduits ensuite dans le circuit.
  21. Procédé selon les revendications 18 à 20, caractérisé en ce que le circuit aqueux présente un pH alcalin et est neutralisé à nouveau après la reprise et le broyage.
  22. Procédé selon les revendications 18 à 21, caractérisé en ce que le défibrage et le broyage sont effectués à une température légèrement élevée de 30 à 60°C.
  23. Utilisation d'un support de couche selon la revendication 1 ou préparé selon la revendication 18, caractérisé en ce qu'il sert comme matériau de support pour les couches d'émulsions photographiques sensibles à la lumière.
  24. Utilisation d'un support de couche selon la revendication 1 ou préparé selon la revendication 18, caractérisé en ce qu'il sert comme matériau de support pour les couches réceptrices d'image, qui forment des images sur base d'un procédé thermique, électrostatique, magnétographique, par des réactions de couleur, de diffusion de colorant, d'adhérence de toner, de séparation de couche, de diffusion de sels d'argent ou des réactions de réduction ou par pulvérisation d'encres.
  25. Utilisation d'un support de couche selon la revendication 1 ou préparé selon la revendication 18, caractérisé en ce qu'il sert pour la préparation de papier décoratif de base ou de recouvrement.
EP94100040A 1993-02-01 1994-01-04 Support recyclable Expired - Lifetime EP0609648B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4302678A DE4302678A1 (de) 1993-02-01 1993-02-01 Recyclierbarer Schichtträger
DE4302678 1993-02-01

Publications (2)

Publication Number Publication Date
EP0609648A1 EP0609648A1 (fr) 1994-08-10
EP0609648B1 true EP0609648B1 (fr) 1999-12-08

Family

ID=6479317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100040A Expired - Lifetime EP0609648B1 (fr) 1993-02-01 1994-01-04 Support recyclable

Country Status (4)

Country Link
US (1) US5573636A (fr)
EP (1) EP0609648B1 (fr)
JP (1) JPH0813388A (fr)
DE (2) DE4302678A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5534589A (en) * 1994-05-04 1996-07-09 Minnesota Mining And Manufacturing Company Repulpable plastic films
DE4427097A1 (de) * 1994-07-30 1996-02-01 Bluetech Gmbh Verfahren zur Herstellung von großformatigen, klarsichtigen Planfolien aus verbrauchten (fotografischen) Filmen durch physikalische und chemisch-biologische Oberflächenmodifikationsprozesse
DE19523530C1 (de) * 1995-06-28 1996-09-26 Fraunhofer Ges Forschung Verpackungswerkstoff und Verfahren zu dessen Herstellung
US5728797A (en) * 1995-08-18 1998-03-17 International Paper Method of making cured resin particles
AU2216797A (en) 1996-03-26 1997-10-17 International Group, Inc., The Repulpable moisture resistant coated articles and methods of making and repulping the same
TR199903051T2 (en) * 1997-06-12 2001-02-21 Wkp W�Rttembergische Kunststoffplatten-Werke Gmbh & Co. Kg. Ka��t �retim y�ntemi.
DE19728093C2 (de) * 1997-07-02 1999-06-24 Schoeller Felix Jun Foto Bildempfangsmaterial für Bildaufzeichnungsverfahren
JP2000131869A (ja) * 1998-08-20 2000-05-12 Minolta Co Ltd リサイクル可能な被記録材およびその製造方法
FI107734B (fi) 1999-11-02 2001-09-28 Avena Oy Orgaaninen pigmentti ja menetelmä sen valmistamiseksi
NO319190B1 (no) * 2002-05-15 2005-06-27 Knut Magne Furuheim Fremgangsmate for fremstilling av et barrieremateriale med gode gassbarriereegenskaper, og barrieremateriale oppnadd ved denne.
WO2004010218A1 (fr) * 2002-07-18 2004-01-29 Konica Minolta Photo Imaging, Inc. Materiau photosensible d'halogenure d'argent et procede de formation d'image
CN100336976C (zh) * 2004-01-19 2007-09-12 汕头方大应用包装科技有限公司 一种贴片包装纸及生产方法
EP2383089A1 (fr) * 2010-04-29 2011-11-02 RecuLiner BVBA Procédé de recyclage de matériau de feuille revêtue avec un agent de libération et utilisations du matériau recyclé
US9194120B2 (en) * 2010-03-02 2015-11-24 Reculiner Bvba Method for recycling sheet material coated with a release agent and uses of the thus recycled material
WO2013034712A1 (fr) 2011-09-07 2013-03-14 Reculiner Nouvelles utilisations de matériau en feuille recyclé
JP2020147873A (ja) * 2019-03-15 2020-09-17 三菱製紙株式会社 工程剥離紙用原紙
CN110016194A (zh) * 2019-04-16 2019-07-16 无锡纯宇环保制品有限公司 一种有利于水体净化的可降解塑料袋

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US3718536A (en) * 1970-04-22 1973-02-27 Thilmany Pulp & Paper Co Composite board and method of manufacture
US4133688A (en) * 1975-01-24 1979-01-09 Felix Schoeller, Jr. Photographic carrier material containing thermoplastic microspheres
JPS5825710B2 (ja) * 1975-03-14 1983-05-28 ユニチカ株式会社 カンネツセツチヤクセイシ
CA1099858A (fr) * 1976-11-11 1981-04-28 Heikki Mamers Traduction non-disponible
DE3022451A1 (de) * 1980-06-14 1982-01-07 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfestes fotografisches papier
JPS6036236B2 (ja) * 1982-03-31 1985-08-19 アイカ工業株式会社 コルゲ−タ−用接着剤
DE3300025A1 (de) * 1983-01-03 1984-07-05 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfester fotografischer papiertraeger
JPS6017446A (ja) * 1983-07-11 1985-01-29 Fuji Photo Film Co Ltd 写真印画紙用支持体の製法
DE3415215A1 (de) * 1984-04-21 1985-10-24 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Gegen fotografische baeder resistentes fotografisches traegermaterial
EP0213231B1 (fr) * 1985-09-04 1989-05-03 Felix Schoeller jr Foto- und Spezialpapiere GmbH & Co. KG Substrat en papier résistant à l'eau, pour couches photographiques
CH662839A5 (en) * 1986-08-14 1987-10-30 Ernst Hagenbuch Process for making paper with a coloured pattern of frosted structure
JPS63135585A (ja) * 1986-11-21 1988-06-07 三菱製紙株式会社 感熱記録古紙の再生方法
US4994147A (en) * 1990-03-05 1991-02-19 Eastman Kodak Company Photographic reflection print material with improved keeping properties
DE4042225A1 (de) * 1990-12-29 1992-07-02 Pwa Industriepapier Gmbh Verfahren zum aufbereiten von altpapier
DE4105368C1 (en) * 1991-02-21 1992-05-07 Papierfabrik Schoellershammer Heinr. Aug. Schoeller Soehne Gmbh & Co Kg, 5160 Dueren, De Handling photographic paper having plastic coating - includes dissolving cellular material from plastic using strong base
JPH059893A (ja) * 1991-07-03 1993-01-19 Material Sci Kk 塗工紙
DE4139251A1 (de) * 1991-11-29 1993-06-03 Schoeller Felix Jun Papier Basispapier fuer fotografische schichttraeger

Also Published As

Publication number Publication date
DE59408971D1 (de) 2000-01-13
EP0609648A1 (fr) 1994-08-10
US5573636A (en) 1996-11-12
JPH0813388A (ja) 1996-01-16
DE4302678A1 (de) 1994-08-04

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