EP0405248A2 - Image-receiving material for thermal dye-transfer - Google Patents

Image-receiving material for thermal dye-transfer Download PDF

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Publication number
EP0405248A2
EP0405248A2 EP19900111315 EP90111315A EP0405248A2 EP 0405248 A2 EP0405248 A2 EP 0405248A2 EP 19900111315 EP19900111315 EP 19900111315 EP 90111315 A EP90111315 A EP 90111315A EP 0405248 A2 EP0405248 A2 EP 0405248A2
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EP
European Patent Office
Prior art keywords
receiving material
material according
image
acrylate copolymer
image receiving
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
EP19900111315
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German (de)
French (fr)
Other versions
EP0405248B1 (en
EP0405248A3 (en
Inventor
Jahn Reiner
Horst Westfal
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.)
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
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Publication of EP0405248A2 publication Critical patent/EP0405248A2/en
Publication of EP0405248A3 publication Critical patent/EP0405248A3/en
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Publication of EP0405248B1 publication Critical patent/EP0405248B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/913—Material designed to be responsive to temperature, light, moisture
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/914—Transfer or decalcomania
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24934—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper 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
    • Y10T428/27—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
    • 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
    • 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

Definitions

  • the invention relates to an image-receiving material for thermal dye transfer and a method for its production.
  • D2T2 dye diffusion thermal transfer
  • thermal dye transfer The principle of thermal dye transfer is that the digital image is processed with regard to the primary colors cyan, magenta, yellow and black and converted into corresponding electrical signals. These signals are forwarded to a thermal printer and converted into heat. Due to the action of heat, the dye sublimes from the donor layer of an ink ribbon (ink sheet) in contact with the receiving material and diffuses into the receiving layer.
  • ink ribbon ink sheet
  • a receiving material for thermal dye transfer generally consists of a support with a receiving layer applied to its front.
  • other layers are often applied to the front of the carrier. These include a. Barrier, separating, adhesive and protective layers.
  • the need for additional layers is due to the requirements placed on the receiving material, such as: - smooth surface - Heat and pressure stability - Light stability, no yellowing - good dye solubility - good scratch and abrasion resistance - "anti-blocking" properties (no sticking)
  • a plastic film e.g. B. polyester film or coated paper.
  • the main component of the receiving layer is usually a thermoplastic resin that has an affinity for the dye from the ribbon.
  • thermoplastic resin that has an affinity for the dye from the ribbon.
  • linear polyesters e.g. B. polyethylene terephthalate, polybutylene terephthalate or acrylic resins, e.g. As polymethyl methacrylate, polybutyl methacrylate, polymethylacrylate, etc.
  • polystyrene, polycarbonate, polyvinylpyrrolidone, ethyl cellulose, polysulfone and other plastics can be used as the dye-absorbing resin.
  • a polycarbonate receiving layer is applied to a polyethylene-coated base paper.
  • An underlayer is also applied between the support and the receiving layer.
  • This underlayer consists of a vinylidene chloride copolymer and serves to improve the adhesion of the receiving layer to the carrier material.
  • a disadvantage of this receiver sheet is that the polycarbonate used here tends to yellow and adversely affect the transferred image over time. Another disadvantage is that both layers are applied from a solvent environment, which poses health and safety problems.
  • Patent application EP 0 261 970 describes a receiving layer which contains a linear saturated polyester as a binder and a silane copolymer coupled with silica as a release agent ("anti-blocking" additive).
  • the present invention is based on the object of proposing an image-receiving material for thermal dye transfer processes which is free from the disadvantages described above, ie is stable to heat and light and is insensitive to pressure, has good flatness and good "anti-blocking" properties.
  • the reception material further improves the color density and gradation compared to the reception sheets available on the market.
  • a receiving layer is applied to the front side of a polyolefin-coated base paper which, as the dye-receiving resin, contains a combination of at least one acrylate copolymer containing polar groups and oxidized polyethylene.
  • Combination creates a receiver sheet that not only meets the requirements listed at the beginning, but also enables a high color density of the transmitted image while increasing the gradation.
  • an acrylate copolymer is used, the polar groups of which are carboxyl, metal-bonded carboxyl and / or nitrile groups.
  • the metal-bonded carboxyl groups zinc-bonded carboxyl groups are particularly preferred.
  • Acrylonitrile and / or methacrylic acid are involved in the structure of the acrylate copolymer contained in the combination according to the invention, and the total proportion of these monomers in the copolymer is 10 to 40 mol%. In a preferred embodiment, the proportion of the monomers mentioned is 25 to 35 mol%.
  • styrene Up to 40 mol% of styrene can also be involved in the construction of the acrylate copolymer.
  • the weight ratio of acrylate copolymer / oxidized polyethylene in the combination according to the invention is 99: 1 to 30:70.
  • the results in terms of color density and color gradation are most favorable with a weight ratio of acrylate copolymer / oxidized polyethylene of 70:30 to 40:60 (example 2, Table 2).
  • the receiving layer for the receiving sheet according to the invention can in addition to the dye-absorbing resin still finely divided silica or Al2O3 as a matting agent and other additives such as wetting agents, eg. B. fluorosurfactants, dispersants, color couplers, UV stabilizers, pigments and similar auxiliaries.
  • wetting agents eg. B. fluorosurfactants, dispersants, color couplers, UV stabilizers, pigments and similar auxiliaries.
  • the receiving layer can with the help of all common application and dosing procedures such. B. roller application, engraving or nipping process on a substrate, for. B. PE coated paper can be applied.
  • the receiving layer can be applied from an aqueous medium in a single operation.
  • the application amount of the receiving layer is 0.3 - 15 g / m2, preferably 1 to 10 g / m2.
  • the polyolefin layer As a base, at least one side with polyolefin, e.g. B. Polyethylene coated paper is preferred, the polyolefin layer according to the prior art has a basis weight of 5 g / m2 or more, preferably 7-25 g / m2.
  • the polyolefin layer can contain pigments and other additives.
  • the front of a polyethylene-coated base paper *) was coated with an aqueous dispersion of the following composition: Composition,% by weight product 1A 1B 1C 1D **) Acrylate copolymer I, 40% aq. Disp. 96.0 96.0 Acrylate copolymer II, 40% aq. Disp. 96.0 Acrylate copolymer III, 38% aq. Disp. 96.0 Fluorosurfactant, 1% in water 4.0 4.0 4.0 4.0 Order quantity, g / m2 5.0 5.0 5.0 **) no TiO2 in the PE coating Other test conditions: - machine speed: 130 m / min. - Drying temperature: 110 ° C - Drying time: 10 sec.
  • Copolymers were used as acrylate copolymers, in whose construction polar monomers bearing the following proportions are involved: Acrylate copolymer I (e.g. Primal HG-44, Rohm & Haas Comp.) - 35 mol% Acrylate copolymer II (e.g. Maincote HG-54 from Rohm & Haas Comp.) - 30 mol%
  • Acrylate copolymer I e.g. Primal HG-44, Rohm & Haas Comp.
  • Acrylate copolymer II e.g. Maincote HG-54 from Rohm & Haas Comp.
  • acrylate / styrene copolymer containing zinc-bonded COOH groups eg NeoCryl SR-205, from Polyvinyl Chemie Holland BV
  • NeoCryl SR-205 from Polyvinyl Chemie Holland BV
  • a fluorosurfactant (e.g. FT-248, Bayer AG) was used as the wetting agent.
  • the receiving material obtained was printed using the thermal image transfer method and then analyzed. The results are summarized in Table 1. compiled.
  • a layer support according to Example 1 was coated with an aqueous dispersion of the following composition: Composition,% by weight product 3A 3B 3C Acrylate copolymer I, 40% aq. Disp. (like Ex. 1) 53.8 48.4 42.7 oxide. Polyethylene, 30% aq. Disp. (like Ex. 2) 27.6 32.3 28.4 Silica ,. 15% in water (e.g. Syloid ED 50, Grace GmbH 11.1 - - Al2O3, 63% slurry, (e.g. Martifin OL-008 from Martinswerk) - 15.3 13.5 Titanium dioxide, 40% in water (e.g. Rutil RN 40, Kronos Titan) 4.1 - - UV absorber, 15% in water (e.g. Tinuvin 213, Ciba-Geigy AG) - - 11.8 Fluorosurfactant, 1% in water (as Ex. 1) 3.4 4.0 3.6 Order quantity, g / m2 5.0 5.0 5.0
  • Example 2 The procedure was as in Example 1.
  • the receiving layer was applied from an aqueous medium in the following composition: Composition,% by weight product V1 A V1 B Acrylate copolymer IV, 50% aq. Disp. 96.0 - Acrylate copolymer V, 40% aq. Disp. - 96.0 Fluorosurfactant, 1% in water (as Ex. 1) 4.0 4.0 Order quantity, g / m2 5.0 5.0
  • Copolymers were used as acrylate copolymers, in whose construction polar monomers bearing the following proportions are involved: Acrylate copolymer IV (e.g. Primal P 376, Rohm & Haas Comp.) - 9 mol% Acrylate copolymer V (e.g. Primal WL 91 k, Rohm & Haas Comp.) - 7 mol%
  • the receiving material obtained was printed using the thermal image transfer method and then analyzed.
  • the results are summarized in Table 4.
  • the receiving material obtained was subjected to a thermal image transfer process.
  • a Color Video Printer VY - 25 E from Hitachi was used using a Hitachi ribbon.
  • the video printer has the following technical data: Image memory: PAL 1 full-screen memory Print image: 64 color image elements: 540: 620 dots Print time: 2 minutes / picture
  • the density measurements were made before and after a 24-hour exposure of the images using a xenon lamp.
  • the loss of density caused by the exposure was designated ⁇ d (%) and used to assess the light stability.
  • the device used for this was an original reflection densitometer SOS-45.
  • the measurements were carried out in five color gradations F1 - F5 for the primary colors cyan, magenta, yellow and black, the values for F1, F3 and F5 being given in the tables.
  • the number of possible color gradations from 0 to 7 is also included in the tables.

Abstract

There is described an image-receiving material for thermal dye transfer, comprising a polyolefin-coated base paper and, applied to the face thereof, a receiving layer which as dye-receiving resin contains a combination of an acrylate copolymer with polar groups on the one hand and oxidised polyethylene on the other.

Description

Die Erfindung betrifft ein Bildempfangsmaterial für thermi­sche Farbstoffübertragung sowie ein Verfahren zu dessen Herstellung.The invention relates to an image-receiving material for thermal dye transfer and a method for its production.

In den letzten Jahren wurde ein System der thermischen Farbstoffübertragung (Dye Diffusion Thermal Transfer - "D2T2") entwickelt, welches die Wiedergabe eines elektro­nisch erzeugten Bildes in Form einer "Hardcopy" ermöglicht.In recent years, a system of dye diffusion thermal transfer ("D2T2") has been developed, which enables the reproduction of an electronically generated image in the form of a "hard copy".

Das Prinzip der thermischen Farbstoffübertragung besteht darin, daß das digitale Bild hinsichtlich der Grundfarben Cyan, Magenta, Gelb und Schwarz aufbereitet und in entspre­chende elektrische Signale umgewandelt wird. Diese Signale werden zu einem Thermodrucker weitergeleitet und in Wärme umgesetzt.
Durch die Wärmeeinwirkung sublimiert der Farbstoff aus der Donorschicht eines im Kontakt mit dem Empfangsmaterial stehenden Farbbandes (Farbblattes) und diffundiert in die Empfangsschicht hinein.The principle of thermal dye transfer is that the digital image is processed with regard to the primary colors cyan, magenta, yellow and black and converted into corresponding electrical signals. These signals are forwarded to a thermal printer and converted into heat.
Due to the action of heat, the dye sublimes from the donor layer of an ink ribbon (ink sheet) in contact with the receiving material and diffuses into the receiving layer.

Ein Empfangsmaterial für thermische Farbstoffübertragung besteht in der Regel aus einem Träger mit auf dessen Vorderseite aufgebrachter Empfangsschicht. Außer der Empfangsschicht werden oft noch andere Schichten auf die Vorderseite des Trägers aufgebracht. Dazu gehören u. a. Sperr-, Trenn-, Haft-, und Schutzschichten.A receiving material for thermal dye transfer generally consists of a support with a receiving layer applied to its front. In addition to the receiving layer, other layers are often applied to the front of the carrier. These include a. Barrier, separating, adhesive and protective layers.

Die Notwendigkeit der zusätzlichen Schichten ist durch die an das Empfangsmaterial gestellten Anforderungen begründet, wie:
- glatte Oberfläche
- Hitze- und Druckstabilität
- Lichtstabilität, kein Vergilben
- gute Farbstofflöslichkeit
- gute Kratz- und Abriebfestigkeit
- "anti-blocking"-Eigenschaften (kein Kleben)The need for additional layers is due to the requirements placed on the receiving material, such as:
- smooth surface
- Heat and pressure stability
- Light stability, no yellowing
- good dye solubility
- good scratch and abrasion resistance
- "anti-blocking" properties (no sticking)

Als Träger kann eine Kunststoffolie, z. B. Polyesterfilm oder ein beschichtetes Papier dienen.A plastic film, e.g. B. polyester film or coated paper.

Die Hauptkomponente der Empfangsschicht ist in der Regel ein thermoplastisches Harz, das eine Affinität zum Farb­stoff aus dem Farbband aufweist. Dazu gehören lineare Poly­ester, z. B. Polyethylenterephthalat, Polybutylenterephtha­lat oder Acrylharze, z. B. Polymethylmethacrylat, Polybu­tylmethacrylat, Polymethylacrylat usw.. Weiterhin können Polystyrol, Polycarbonat, Polyvinylpyrrolidon, Ethylcellu­lose, Polysulfon und andere Kunststoffe als farbstoffauf­nehmendes Harz verwendet werden.The main component of the receiving layer is usually a thermoplastic resin that has an affinity for the dye from the ribbon. These include linear polyesters, e.g. B. polyethylene terephthalate, polybutylene terephthalate or acrylic resins, e.g. As polymethyl methacrylate, polybutyl methacrylate, polymethylacrylate, etc. Furthermore, polystyrene, polycarbonate, polyvinylpyrrolidone, ethyl cellulose, polysulfone and other plastics can be used as the dye-absorbing resin.

Aus den Patentschriften US 4 748 150 und US 4 774 224 ist bekannt, daß auf ein polyethylenbeschichtetes Basispapier eine Empfangsschicht aus Polycarbonat aufgetragen wird. Außerdem wird eine Unterschicht zwischen dem Träger und der Empfangsschicht aufgebracht. Diese Unterschicht besteht aus einem Vinylidenchlorid-Copolymer und dient zur Verbesserung der Haftung der Empfangsschicht auf dem Trägermaterial.From US Pat. Nos. 4,748,150 and 4,774,224 it is known that a polycarbonate receiving layer is applied to a polyethylene-coated base paper. An underlayer is also applied between the support and the receiving layer. This underlayer consists of a vinylidene chloride copolymer and serves to improve the adhesion of the receiving layer to the carrier material.

Nachteilig an diesem Empfangsblatt ist, daß das hier ver­wendete Polycarbonat stark zur Vergilbung neigt und im Laufe der Zeit das übertragene Bild negativ beeinflußt. Ein weiterer Nachteil liegt darin, daß das Auftragen beider Schichten aus einem Lösungsmittelmilieu geschieht, was Ge­sundheits- und Sicherheitsprobleme mit sich bringt.A disadvantage of this receiver sheet is that the polycarbonate used here tends to yellow and adversely affect the transferred image over time. Another disadvantage is that both layers are applied from a solvent environment, which poses health and safety problems.

Das Problem der Druckempfindlichkeit des Empfangsblattes beim Kontakt mit dem Heizkopf wird in der europäischen Pa­tentanmeldung EP 0 288 193 behandelt. Die Druckempfindlich­ keit äußert sich durch eine Verminderung des Oberflächen­glanzes der Schicht oder durch das Phänomen "strike-­through", bei dem der Abdruck des Bildes auf der Rückseite des Empfangsblattes zu beobachten ist.
Das Problem wird dadurch gelöst, daß auf ein Polyesterträ­germaterial mit einer aufcoextrudierten Polyesterempfangs­schicht eine Trennschicht auf Silikonbasis mit einem SiO₂-­Zusatz aufgebracht wird. Nachteilig an diesem Empfangsblatt ist, daß wahrscheinlich infolge einer Reaktion zwischen den reaktiven Gruppen der Silikon-Verbindungen und dem in die Empfangsschicht hineindiffundierenden Farbstoff das er­haltene Bild verwischt ist. Außerdem fehlt die auf dem Markt gewünschte Fotoähnlichkeit des auf diese Weise er­zeugten Bildes.The problem of the pressure sensitivity of the receiver sheet when it comes into contact with the heating head is dealt with in European patent application EP 0 288 193. The pressure sensitive speed is expressed by a reduction in the surface gloss of the layer or by the "strike-through" phenomenon, in which the imprint of the image on the back of the receiver sheet can be observed.
The problem is solved in that a silicone-based separating layer with an SiO 2 additive is applied to a polyester carrier material with a coextruded polyester receiving layer. A disadvantage of this receiving sheet is that the image obtained is probably blurred due to a reaction between the reactive groups of the silicone compounds and the dye diffusing into the receiving layer. In addition, the photographic similarity of the image produced in this way, which is desired on the market, is missing.

Es ist weiterhin bekannt, daß die aus dem Donor-Farbband stammenden und in die Empfangsschicht hineindiffundierten Farbstoffe unter Lichteinwirkung zum Verblassen neigen. Dieses Problem wurde in der Patentschrift US 4 775 657 ge­löst, indem auf die aus Polycarbonat bestehende Empfangs­schicht eine Schutzschicht aus Polyester oder Polyurethan aufgetragen wird. Nachteilig dabei ist die Druckempfind­lichkeit des auf diese Weise hergestellten Empfangsblattes, sowie die hierfür erforderlichen mehreren Arbeitsstufen und das Auftragen der Schichten aus organischen Lösungsmitteln.It is also known that the dyes originating from the donor ink ribbon and diffused into the receiving layer tend to fade when exposed to light. This problem was solved in US Pat. No. 4,775,657 by applying a protective layer made of polyester or polyurethane to the polycarbonate receiving layer. The disadvantage here is the pressure sensitivity of the receiver sheet produced in this way, as well as the several work steps required for this and the application of the layers of organic solvents.

In der Patentanmeldung EP 0 261 970 ist eine Empfangs­schicht beschrieben, die einen linearen gesättigten Poly­ester als Bindemittel und ein mit Kieselsäure gekoppeltes Silan-Copolymer als Trennmittel ("anti-blocking"-Zusatz) enthält.Patent application EP 0 261 970 describes a receiving layer which contains a linear saturated polyester as a binder and a silane copolymer coupled with silica as a release agent ("anti-blocking" additive).

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, ein Bildempfangsmaterial für thermische Farbstoffübertra­ungsverfahren vorzuschlagen, das frei von den oben be­schriebenen Nachteilen ist, d. h. hitze- und lichtstabil sowie druckunempfindlich ist, eine gute Planlage und gute "anti-blocking"-Eigenschaften aufweist. Außerdem wird mit dem Empfangsmaterial eine weitere Verbesserung der Farb­densität und der Farbabstufung (Gradation) im Vergleich zu den auf dem Markt verfugbaren Empfangsblättern erzielt.The present invention is based on the object of proposing an image-receiving material for thermal dye transfer processes which is free from the disadvantages described above, ie is stable to heat and light and is insensitive to pressure, has good flatness and good "anti-blocking" properties. In addition, the reception material further improves the color density and gradation compared to the reception sheets available on the market.

Diese Aufgabe wird gelöst, indem auf die Vorderseite eines polyolefinbeschichteten Basispapiers eine Empfangsschicht aufgetragen wird, die als farbstoffaufnehmendes Harz eine Kombination aus wenigstens einem, polare Gruppen enthal­tenden Acrylat-Copolymer und oxydiertem Polyethylen ent­hält.This object is achieved in that a receiving layer is applied to the front side of a polyolefin-coated base paper which, as the dye-receiving resin, contains a combination of at least one acrylate copolymer containing polar groups and oxidized polyethylene.

Überrraschend wurde gefunden, daß die Verwendung der o. a. Kombination ein Empfangsblatt schafft, welches nicht nur die anfangs aufgezählten Anforderungen erfüllt, sondern auch eine hohe Farbdensität des übertragenen Bildes ermög­licht bei gleichzeitiger Erhöhung der Gradation.It was surprisingly found that the use of the above. Combination creates a receiver sheet that not only meets the requirements listed at the beginning, but also enables a high color density of the transmitted image while increasing the gradation.

In bevorzugter Ausführung wird ein Acrylat-Copolymer ver­wendet, dessen polare Gruppen Carboxyl-, metallgebundene Carboxyl- und/oder Nitrilgruppen sind.
Bei den metallgebundenen Carboxylgruppen werden Zink-gebun­dene Carboxylgruppen besonders bevorzugt.In a preferred embodiment, an acrylate copolymer is used, the polar groups of which are carboxyl, metal-bonded carboxyl and / or nitrile groups.
In the case of the metal-bonded carboxyl groups, zinc-bonded carboxyl groups are particularly preferred.

Am Aufbau des in der erfindungsgemäßen Kombination enthal­tenen Acrylat-Copolymers sind Acrylnitril und/oder Me­thacrylsäure beteiligt, und der Anteil dieser Monomere im Copolymer beträgt in der Summe 10 bis 40 Mol.-%. In einer bevorzugten Ausführung beträgt der Anteil der genannten Mo­nomere 25 bis 35 Mol.-%.Acrylonitrile and / or methacrylic acid are involved in the structure of the acrylate copolymer contained in the combination according to the invention, and the total proportion of these monomers in the copolymer is 10 to 40 mol%. In a preferred embodiment, the proportion of the monomers mentioned is 25 to 35 mol%.

Am Aufbau des Acrylat-Copolymers kann auch zusätzlich Sty­rol in einer Menge bis 40 Mol.-% beteiligt sein.Up to 40 mol% of styrene can also be involved in the construction of the acrylate copolymer.

Das Gewichtsverhältnis Acrylat-Copolymer/oxydiertes Poly­ethylen in der erfindungsgemäßen Kombination beträgt 99 : 1 bis 30 : 70. Die Ergebnisse hinsichtlich der Farbdensität und Farbabstufung sind bei einem Gewichtsverhältnis Acry­lat-Copolymer/oxydiertes Polyethylen von 70 : 30 bis 40 : 60 am günstigsten (Beispiel 2, Tabelle 2).The weight ratio of acrylate copolymer / oxidized polyethylene in the combination according to the invention is 99: 1 to 30:70. The results in terms of color density and color gradation are most favorable with a weight ratio of acrylate copolymer / oxidized polyethylene of 70:30 to 40:60 (example 2, Table 2).

Die Empfangsschicht für das erfindungsgemäße Empfangsblatt kann außer dem farbstoffaufnehmenden Harz noch feinteilige Kieselsäure oder Al₂O₃ als Mattierungsmittel sowie weitere Zusätze, wie Netzmittel, z. B. Fluortenside, Dispergier­hilfsmittel, Farbkuppler, UV-Stabilisatoren, Pigmente und ähnliche Hilfsstoffe enthalten.The receiving layer for the receiving sheet according to the invention can in addition to the dye-absorbing resin still finely divided silica or Al₂O₃ as a matting agent and other additives such as wetting agents, eg. B. fluorosurfactants, dispersants, color couplers, UV stabilizers, pigments and similar auxiliaries.

Die Empfangsschicht kann mit Hilfe aller gebräuchlichen Auftrags- und Dosierungsverfahren z. B. Walzenauf­trags-, Gravur- oder Nipp-Verfahren auf ein Substrat, z. B. PE-beschichtetes Papier aufgebracht werden.The receiving layer can with the help of all common application and dosing procedures such. B. roller application, engraving or nipping process on a substrate, for. B. PE coated paper can be applied.

Die Empfangsschicht kann aus wäßrigem Milieu in einem ein­zigen Arbeitsgang aufgetragen werden.The receiving layer can be applied from an aqueous medium in a single operation.

Die Auftragsmenge der Empfangsschicht beträgt 0,3 - 15 g/m², vorzugsweise 1 bis 10 g/m².The application amount of the receiving layer is 0.3 - 15 g / m², preferably 1 to 10 g / m².

Als Unterlage wird ein mindestens von einer Seite mit Poly­olefin, z. B. Polyethylen beschichtetes Papier bevorzugt, wobei die Polyolefinschicht entsprechend dem Stand der Beschichtungstechnik ein Flächengewicht von 5 g/m² oder mehr, vorzugsweise 7 - 25 g/m² hat.As a base, at least one side with polyolefin, e.g. B. Polyethylene coated paper is preferred, the polyolefin layer according to the prior art has a basis weight of 5 g / m² or more, preferably 7-25 g / m².

Die Polyolefinschicht kann Pigmente und andere Zusatzstoffe enthalten.The polyolefin layer can contain pigments and other additives.

Die Erfindung wird mit Hilfe der nachfolgenden Beispiele näher erläutert, jedoch nicht eingeschränkt.The invention is explained in more detail with the aid of the following examples, but is not restricted.

BeispieleExamples Beispiel 1example 1


*) Als Unterlage diente ein beidseitig polyethylenbe­schichtetes Basispapier mit einem Flächengewicht von 180 g/m².
*) A base paper with a polyethylene coating on both sides and a basis weight of 180 g / m² was used.

Die Vorderseite eines polyethylenbeschichteten Basispa­piers *) wurde mit einer wäßrigen Dispersion folgender Zusammensetzung beschichtet: Zusammensetzung,Gew.-% Produkt 1A 1B 1C 1D**) Acrylat-Copolymer I, 40 % -ige wäßr. Disp. 96,0 96,0 Acrylat-Copolymer II, 40 %-ige wäßr. Disp. 96,0 Acrylat-Copolymer III, 38 %-ige wäßr. Disp. 96,0 Fluortensid, 1 %-ig in Wasser 4,0 4,0 4,0 4,0 Auftragsmenge, g/m² 5,0 5,0 5,0 5,0 **) kein TiO₂ in der PE-Beschichtung Sonstige Versuchsbedingungen:
- Maschinengeschwindigkeit : 130 m/min.
- Trocknungstemperatur : 110° C
- Trocknungszeit : 10 sek.The front of a polyethylene-coated base paper *) was coated with an aqueous dispersion of the following composition: Composition,% by weight product 1A 1B 1C 1D **) Acrylate copolymer I, 40% aq. Disp. 96.0 96.0 Acrylate copolymer II, 40% aq. Disp. 96.0 Acrylate copolymer III, 38% aq. Disp. 96.0 Fluorosurfactant, 1% in water 4.0 4.0 4.0 4.0 Order quantity, g / m² 5.0 5.0 5.0 5.0 **) no TiO₂ in the PE coating Other test conditions:
- machine speed: 130 m / min.
- Drying temperature: 110 ° C
- Drying time: 10 sec.

Die Rückseite des Rohpapiers wurde mit klarem Poly­ ethylen, welches eine Mischung aus LDPE und HDPE ist (35 % HDPE mit einer Dichte ρ = 0,959 g/cm3, MFI = 8; 28 % HDPE mit ρ = 0,950 g/cm3, MFI = 7; 20 % LDPE mit ρ = 0,934 g/cm3, MFI = 3; 17 % LDPE mit ρ = 0,915 g/cm3, MFI = 8), in einer Auftragsmenge von 14 - 15 g/m² beschichtet.The back of the base paper was made with clear poly ethylene, which is a mixture of LDPE and HDPE (35% HDPE with a density ρ = 0.995 g / cm3, MFI = 8; 28% HDPE with ρ = 0.950 g / cm3, MFI = 7; 20% LDPE with ρ = 0.934 g / cm3, MFI = 3; 17% LDPE with ρ = 0.915 g / cm3, MFI = 8), coated in a quantity of 14 - 15 g / m².

Die Vorderseite wurde mit pigmentiertem Polyethylen­gemisch (19 % HDPE mit ρ = 0,959 g/cm3, MFI = 8; 20 % LDPE mit ρ = 0,934 g/cm3, MFI = 3; 13,3 % LDPE mit ρ = 0,915 g/cm3, MFI = 8; 26,7 % LDPE mit ρ = 0,924 g/cm3, MFI = 4,5; 21 % TiO₂-Masterbatch mit 50 %-igem TiO₂-­Anteil) in einer Auftragsmenge von 15 g/m² beschichtet.The front was covered with pigmented polyethylene mixture (19% HDPE with ρ = 0.959 g / cm3, MFI = 8; 20% LDPE with ρ = 0.934 g / cm3, MFI = 3; 13.3% LDPE with ρ = 0.915 g / cm3, MFI = 8; 26.7% LDPE with ρ = 0.924 g / cm3, MFI = 4.5; 21% TiO₂ masterbatch with 50% TiO₂ content) coated in an order quantity of 15 g / m².

Als Acrylat-Copolymere wurden Copolymere verwendet, an de­ren Aufbau polare Gruppen tragende Monomere mit folgenden Anteilen beteiligt sind: Acrylat-Copolymer I (z. B. Primal HG-44, Fa. Rohm & Haas Comp.) - 35 Mol.-% Acrylat-Copolymer II (z. B. Maincote HG-54 Fa. Rohm & Haas Comp.) - 30 Mol.-% Copolymers were used as acrylate copolymers, in whose construction polar monomers bearing the following proportions are involved: Acrylate copolymer I (e.g. Primal HG-44, Rohm & Haas Comp.) - 35 mol% Acrylate copolymer II (e.g. Maincote HG-54 from Rohm & Haas Comp.) - 30 mol%

Als Acrylat-Copolymer III wurde ein Zink-gebundene COOH-­Gruppen enthaltendes Acrylat/Styrol-Copolymer (z. B. NeoCryl SR-205, Fa. Polyvinyl Chemie Holland BV) verwendet.An acrylate / styrene copolymer containing zinc-bonded COOH groups (eg NeoCryl SR-205, from Polyvinyl Chemie Holland BV) was used as the acrylate copolymer III.

Als Netzmittel wurde ein Fluortensid (z. B. FT-248, Fa. Bayer AG) verwendet.A fluorosurfactant (e.g. FT-248, Bayer AG) was used as the wetting agent.

Das erhaltene Empfangsmaterial wurde unter Anwendung des thermischen Bildübertragungsverfahrens bedruckt und an­schließend analysiert. Die Ergebnisse sind in Tabelle 1 zu­sammengestellt. sammengestellt.The receiving material obtained was printed using the thermal image transfer method and then analyzed. The results are summarized in Table 1. compiled.

Dieses Beispiel soll die besondere Eignung der o. g. Acrylat-Copolymere als Komponenten der erfindungsgemäßen Empfangsschicht darstellen.This example is intended to demonstrate the particular suitability of the abovementioned. Represent acrylate copolymers as components of the receiving layer according to the invention.

Beispiel 2Example 2

Ein Schichtträger gemäß Beispiel 1, jedoch mit einer Poly­ethylenbeschichtung von 7 g/m² auf der Vorderseite versehen, wurde mit wäßriger Dispersion folgender Zusammensetzung be­schichtet: Zusammensetzung, Gew. - % Produkt 2A 2B 2C 2D 2E 2F 2G Acrylat-Copolymer I 40 %-ige wäßr. Disp. (wie Beisp. 1 ) 91,7 61,4 41,4 - 41,4 41,4 - Acrylat-Copolymer III 38 %-ige wäßr. Disp. (wie Beisp. 1) - - - - - - 42,4 oxyd. Polyethylen 30 %-ige wäßr. Disp. (z. B. Südranol 340, Fa. Süddeutsche Emulsions-Chemie GmbH 5,1 35,0 55,2 96,0 55,2 55,2 53,7 Fluortensid, 1 %-ig in Wasser (wie Beisp. 1) 3,2 3,6 3,4 4,0 3,4 3,4 3,9 Auftragsmenge, g/m² 5,0 5,0 5,0 5,0 10,0 0,5 5,0 A layer support according to Example 1, but provided with a polyethylene coating of 7 g / m² on the front, was coated with an aqueous dispersion of the following composition: Composition,% by weight product 2A 2 B 2C 2D 2E 2F 2G Acrylate copolymer I 40% aq. Disp. (like Ex. 1) 91.7 61.4 41.4 - 41.4 41.4 - Acrylate copolymer III 38% aq. Disp. (like Ex. 1) - - - - - - 42.4 oxide. Polyethylene 30% aq. Disp. (e.g. Südranol 340, Süddeutsche Emulsions-Chemie GmbH 5.1 35.0 55.2 96.0 55.2 55.2 53.7 Fluorosurfactant, 1% in water (as Ex. 1) 3.2 3.6 3.4 4.0 3.4 3.4 3.9 Order quantity, g / m² 5.0 5.0 5.0 5.0 10.0 0.5 5.0

Sonstige Versuchsbedingungen waren wie im Beispiel 1.Other test conditions were as in Example 1.

Die Ergebnisse der Untersuchung der anschließend erhaltenen Druckbilder sind in Tabelle 2 aufgeführt.The results of the examination of the print images subsequently obtained are shown in Table 2.

Beispiel 3Example 3

Ein Schichtträger gemäß Beispiel 1 wurde mit wäßriger Dis­persion folgender Zusammensetzung beschichtet: Zusammensetzung, Gew. - % Produkt 3A 3B 3C Acrylat-Copolymer I, 40 %-ige wäßr. Disp. (wie Beisp. 1 ) 53,8 48,4 42,7 oxyd. Polyethylen, 30 %-ige wäßr. Disp. (wie Beisp. 2) 27,6 32,3 28,4 Kieselsäure,. 15 %-ig in Wasser (z. B. Syloid ED 50, Fa. Grace GmbH 11,1 - - Al₂O₃, 63 %-ige Slurry, ( z. B. Martifin OL-008 Fa. Martinswerk) - 15,3 13,5 Titandioxid, 40 %-ig in Wasser (z. B. Rutil RN 40, Fa. Kronos Titan) 4,1 - - UV-Absorber, 15 %-ig in Wasser (z. B. Tinuvin 213, Fa. Ciba-Geigy AG) - - 11,8 Fluortensid, 1 %-ig in Wasser (wie Beisp. 1) 3,4 4,0 3,6 Auftragsmenge, g/m² 5,0 5,0 5,0 A layer support according to Example 1 was coated with an aqueous dispersion of the following composition: Composition,% by weight product 3A 3B 3C Acrylate copolymer I, 40% aq. Disp. (like Ex. 1) 53.8 48.4 42.7 oxide. Polyethylene, 30% aq. Disp. (like Ex. 2) 27.6 32.3 28.4 Silica ,. 15% in water (e.g. Syloid ED 50, Grace GmbH 11.1 - - Al₂O₃, 63% slurry, (e.g. Martifin OL-008 from Martinswerk) - 15.3 13.5 Titanium dioxide, 40% in water (e.g. Rutil RN 40, Kronos Titan) 4.1 - - UV absorber, 15% in water (e.g. Tinuvin 213, Ciba-Geigy AG) - - 11.8 Fluorosurfactant, 1% in water (as Ex. 1) 3.4 4.0 3.6 Order quantity, g / m² 5.0 5.0 5.0

Sonstige Versuchsbedingungen waren wie im Beispiel 1.Other test conditions were as in Example 1.

Die Untersuchungsergebnisse sind in Tabelle 3 zusammenge­stellt.The test results are summarized in Table 3.

VergleichsbeispieleComparative examples

V1. Die Durchführung erfolgte wie im Beispiel 1. Die Em­pfangsschicht wurde aus wäßrigem Milieu in folgender Zusammensetzung aufgetragen: Zusammensetzung,Gew.-% Produkt V1 A V1 B Acrylat-Copolymer IV, 50 % -ige wäßr. Disp. 96,0 - Acrylat-Copolymer V, 40 %-ige wäßr. Disp. - 96,0 Fluortensid, 1 %-ig in Wasser (wie Beisp. 1) 4,0 4,0 Auftragsmenge, g/m² 5,0 5,0 V1. The procedure was as in Example 1. The receiving layer was applied from an aqueous medium in the following composition: Composition,% by weight product V1 A V1 B Acrylate copolymer IV, 50% aq. Disp. 96.0 - Acrylate copolymer V, 40% aq. Disp. - 96.0 Fluorosurfactant, 1% in water (as Ex. 1) 4.0 4.0 Order quantity, g / m² 5.0 5.0

Als Acrylat-Copolymere wurden Copolymere verwendet, an deren Aufbau polare Gruppen tragende Monomere mit fol­genden Anteilen beteiligt sind: Acrylat-Copolymer IV (z. B. Primal P 376, Fa. Rohm & Haas Comp.) - 9 Mol.-% Acrylat-Copolymer V (z. B. Primal WL 91 k, Fa. Rohm & Haas Comp.) - 7 Mol.-% Copolymers were used as acrylate copolymers, in whose construction polar monomers bearing the following proportions are involved: Acrylate copolymer IV (e.g. Primal P 376, Rohm & Haas Comp.) - 9 mol% Acrylate copolymer V (e.g. Primal WL 91 k, Rohm & Haas Comp.) - 7 mol%

Das erhaltene Empfangsmaterial wurde mit Hilfe des thermischen Bildübertragungsverfahrens bedruckt und anschließend analysiert. Die Ergebnisse sind in Ta­belle 4 zusammengestellt.The receiving material obtained was printed using the thermal image transfer method and then analyzed. The results are summarized in Table 4.

V2. Die Durchführung erfolgte wie im Beispiel 1. Als farbstoffaufnehmendes Harz wurde ein Acrylharz wie Polyethylacrylat (z. B. Plextol B 408, Fa. Röhm GmbH) verwendet.
Die anschließend erhaltenen Druckbilder (Hardcopy) wurden untersucht. Die Ergebnisse sind in Tabelle 4 aufgeführt.V2. The procedure was as in Example 1. An acrylic resin such as polyethylacrylate (eg Plextol B 408, from Röhm GmbH) was used as the dye-absorbing resin.
The print images (hard copy) subsequently obtained were examined. The results are shown in Table 4.

V3. Zum Vergleich wurde ein auf dem Markt verfügbares Bildempfangsblatt der Fa. Hitachi herangezogen. Die Ergebnisse sind in Tabelle 4 angegeben.V3. A Hitachi image receiving sheet available on the market was used for comparison. The results are shown in Table 4.

Prüfung des gemäß Beispiel 1 - 4 erhaltenen BildempfangsmaterialsExamination of the image-receiving material obtained according to Examples 1-4

Das erhaltene Empfangsmaterial wurde einem thermischen Bildübertragungsverfahren unterzogen.
Hierzu wurde ein Colour Video Printer VY - 25 E der Fa. Hitachi eingesetzt unter Anwendung eines Hitachi-Farbban­des. Der Video-Printer hat folgende technische Daten:
Bildspeicher : PAL 1-Vollbild-Speicher
Druckbild : 64 Farbton-Bild Bildelemente: 540 : 620 Punkte
Druckzeit : 2 Minuten/BildThe receiving material obtained was subjected to a thermal image transfer process.
For this purpose, a Color Video Printer VY - 25 E from Hitachi was used using a Hitachi ribbon. The video printer has the following technical data:
Image memory: PAL 1 full-screen memory
Print image: 64 color image elements: 540: 620 dots
Print time: 2 minutes / picture

Bei den erhaltenen Druckbildern (Hardcopy) wurden die Farb­densität und die "anti-blocking"-Eingenschften untersucht.The color density and the "anti-blocking" properties were investigated in the print images obtained (hard copy).

Die Densitätsmessungen erfolgten vor und nach einer 24 h-­Belichtung der Bilder mittels Xenon-Lampe. Der durch die Belichtung verursachte Densitätsverlust wurde mit Δ d (%) bezeichnet und zur Beurteilung der Lichtstabilität heran­gezogen.The density measurements were made before and after a 24-hour exposure of the images using a xenon lamp. The loss of density caused by the exposure was designated Δ d (%) and used to assess the light stability.

Das hierzu verwendete Gerät war ein Original Reflecion Den­sitometer SOS-45. Die Messungen erfolgten in fünf Farbab­stufungen F1 - F5 für die Grundfarben Cyan, Magenta, Gelb, und Schwarz, wobei in den Tabellen die Werte für F1, F3 und F5 angegeben sind. Die Anzahl möglicher Farbabstufungen (Gradation) von 0 - 7 ist ebenfalls in den Tabellen enthal­ten.The device used for this was an original reflection densitometer SOS-45. The measurements were carried out in five color gradations F1 - F5 for the primary colors cyan, magenta, yellow and black, the values for F1, F3 and F5 being given in the tables. The number of possible color gradations from 0 to 7 is also included in the tables.

Gleichzeitig wurden Vergleichsmessungen mit den auf dem Markt verfügbaren Empfangsmaterialien angestellt.At the same time, comparative measurements were made with the receiving materials available on the market.

Die in den Tabellen 1 - 4 aufgeführten Ergebnisse zeigen, daß mit dem erfindungsgemäß hergestellten Bildempfangsma­ terial Druckbilder mit in jedem Farbbereich höheren Werten der Farbdensität und der Gradation erzielt werden. Auch hinsichtlich der Lichtstabilität (Δ d-Werte) weisen die auf erfindungsgemäß hergestelltem Bildempfangsmaterial gedruckten Bilder bessere Werte als das Vergleichsmaterial auf.

Figure imgb0001
Figure imgb0002
Figure imgb0003
Figure imgb0004
Figure imgb0005
 The results listed in Tables 1-4 show that with the image receiving mass produced according to the invention material print images with higher values of color density and gradation can be achieved in every color range. The images printed on the image-receiving material produced according to the invention also have better values than the comparison material with regard to light stability (Δ d values).
Figure imgb0001
Figure imgb0002
Figure imgb0003
Figure imgb0004
Figure imgb0005

Claims (13)

1. Bildempfangsmaterial für thermische Farbstoffübertra­gung, bestehend aus einem harz beschichteten Basispapier und einer auf dessen Vorderseite aufgetra­genen, farbstoffaufnehmendes Harz enthaltenden Em­pfangsschicht, dadurch gekennzeichnet, daß das farb­stoffaufnehmende Harz eine Kombination aus wenigstens einem, polare Gruppen enthaltenden Acrylat-Copolymer und oxydiertem Polyethylen ist.1. Image-receiving material for thermal dye transfer, consisting of a resin-coated base paper and a receiving layer applied to the front side, containing dye-absorbing resin, characterized in that the dye-receiving resin is a combination of at least one polar group-containing acrylate copolymer and oxidized polyethylene. 2. Bildempfangsmaterial nach Anspruch 1, dadurch gekenn­zeichnet, daß die im Acrylat-Copolymer enthaltenen po­laren Gruppen Carboxyl-, metallgebunde Carboxyl- und/oder Nitrilgruppen sind.2. Image receiving material according to claim 1, characterized in that the polar groups contained in the acrylate copolymer are carboxyl, metal-bonded carboxyl and / or nitrile groups. 3. Bildempfangsmaterial nach Anspruch 2, dadurch gekenn­zeichnet, daß die metallgebundenen Carboxylgruppen Zink-gebundene Carboxylgruppen sind.3. Image receiving material according to claim 2, characterized in that the metal-bonded carboxyl groups are zinc-bonded carboxyl groups. 4. Bildempfangsmaterial nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß zu den am Aufbau des Acrylat-­Copolymers beteiligten und polare Gruppen tragenden Monomeren Acrylnitril und/oder Methacrylsäure gehören und der Anteil dieser Monomere im Copolymer in der Summe 10 bis 40 Mol.-% beträgt.4. Image receiving material according to claim 1 to 3, characterized in that the monomers involved in the construction of the acrylate copolymer and bearing polar groups include acrylonitrile and / or methacrylic acid and the proportion of these monomers in the copolymer in total 10 to 40 mol%. is. 5. Bildempfangsmaterial nach Anspruch 4, dadurch gekenn­zeichnet, daß der Anteil der Monomere 25 bis 35 Mol.-% beträgt.5. Image receiving material according to claim 4, characterized in that the proportion of the monomers is 25 to 35 mol%. 6. Bildempfangsmaterial nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß das Acrylat-Copolymer zusätzlich als Monomer Styrol enthält und dessen Anteil 0 bis 40 Mol.-% beträgt.6. Image receiving material according to claim 1 to 5, characterized in that the acrylate copolymer additionally contains styrene as a monomer and its proportion is 0 to 40 mol%. 7. Bildempfangsmaterial nach Anspruch 1, dadurch ge­kennzeichnet, daß das Verhältnis Acrylat-Copolymer/­oxydiertes Polyethylen 99 : 1 bis 30 : 70 beträgt.7. Image receiving material according to claim 1, characterized in that the ratio of acrylate copolymer / oxidized polyethylene is 99: 1 to 30:70. 8. Bildempfangsmaterial nach Anspruch 7, dadurch gekenn­zeichnet, daß das Verhältnis Acrylat-Copolymer/oxy­diertes Polyethylen 70 : 30 bis 40 : 60 beträgt.8. Image receiving material according to claim 7, characterized in that the ratio of acrylate copolymer / oxidized polyethylene is 70:30 to 40:60. 9. Bildempfangsmaterial nach Anspruch 1 bis 8, dadurch gekennzeichent, daß die Empfangsschicht zusätzlich Pigmente, Mattierungsmittel, Netzmittel und andere Hilfsmittel enthält.9. Image receiving material according to claim 1 to 8, characterized in that the receiving layer additionally contains pigments, matting agents, wetting agents and other auxiliaries. 10. Bildempfangsmaterial nach Anspruch 1 bis 9, dadurch gekennzeichnet, daß die Auftragsmenge der Empfangs­schicht 0,3 bis 15 g/m² beträgt.10. Image receiving material according to claim 1 to 9, characterized in that the application amount of the receiving layer is 0.3 to 15 g / m². 11. Bildempfangsmaterial nach Anspruch 10, dadurch gekenn­zeichnet, daß die Auftragsmenge der Empfangsschicht 1 bis 10 g/m² beträgt.11. Image receiving material according to claim 10, characterized in that the application amount of the receiving layer is 1 to 10 g / m². 12. Bildempfangsmaterial nach Anspruch 1 bis 11, dadurch gekennzeichnet, daß die Harzbeschichtung eine Polyo­lefinbeschichtung in einer Menge von wenigstens 5 g/m² ist.12. Image receiving material according to claim 1 to 11, characterized in that the resin coating is a polyolefin coating in an amount of at least 5 g / m². 13. Verfahren zur Herstellung eines Bildempfangsmaterials für thermische Farbstoffübertragung mit einer farb­stoffaufnehmendes Harz enthaltenden und auf die Vor­derseite eines harz beschichteten Basispapiers aufgetragenen Empfangsschicht, dadurch gekennzeichnet, daß die als farbstoffaufnehmendes Harz eine Kombina­tion aus wenigstens einem polare Gruppen enthaltenden Acrylat-Copolymer und oxydiertem Polyethylen enthal­tende Empfangsschicht aus einem wäßrigen Milieu und in einem einzigen Arbeitsgang auf die Vorderseite eines polyethylenbeschichteten Basispapiers aufgetragen wird.13. A method for producing an image-receiving material for thermal dye transfer with a dye-containing resin-containing and applied to the front of a resin-coated base paper receiving layer, characterized in that the dye-receiving resin contains a combination of at least one polar group-containing acrylate copolymer and oxidized polyethylene-containing receiving layer is applied from an aqueous medium and in a single operation to the front of a polyethylene-coated base paper.
EP19900111315 1989-09-28 1990-06-15 Image-receiving material for thermal dye-transfer Expired - Lifetime EP0405248B1 (en)

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EP0539678A1 (en) * 1991-10-26 1993-05-05 Felix Schoeller jr. Papierfabrik GmbH & Co. KG Recording material for the ink jet process
EP0568031A1 (en) * 1992-04-30 1993-11-03 Fujicopian Co., Ltd. Image-receptor and ink sheet for thermal transfer
EP0570013A1 (en) * 1992-05-15 1993-11-18 Dai Nippon Printing Co., Ltd. Thermal transfer image receiving sheet
EP0767070A1 (en) * 1995-09-19 1997-04-09 Dai Nippon Printing Co., Ltd. Thermal transfer image-receiving sheet containing ethylene terpolymer
EP0782932A1 (en) * 1996-01-04 1997-07-09 Mobil Oil Corporation Coating for printable plastic films
EP0925192A1 (en) * 1996-09-11 1999-06-30 MOBIL OIL CORPORATION (a New York corporation) Thermal transfer printing incorporating a coating for printable plastic films
US6939602B2 (en) 2002-12-31 2005-09-06 Exxonmobil Oil Corporation Coating for the adhesive-receiving surface of polymeric labels

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EP0543441B1 (en) * 1991-11-19 1995-09-20 Agfa-Gevaert N.V. Thermal dye transfer printing method for obtaining a hard copy of a medical diagnostic image
US5716900A (en) * 1995-05-01 1998-02-10 Kimberly-Clark Worldwide, Inc. Heat transfer material for dye diffusion thermal transfer printing
JPH11334202A (en) * 1998-05-22 1999-12-07 Sony Corp Transfer type laminate film for protecting image and thermal transfer ink sheet
WO2001025856A1 (en) * 1999-10-01 2001-04-12 Foto-Wear, Inc. Image transfer material with image receiving layer and heat transfer process using the same
US6964722B2 (en) * 2002-08-07 2005-11-15 Trio Industries Holdings, L.L.C. Method for producing a wood substrate having an image on at least one surface
CN103174060B (en) * 2013-03-18 2015-10-21 浙江佳维康特种纸有限公司 A kind of preparation method of Anti-counterfeiting transfer paper

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EP0482471A3 (en) * 1990-10-25 1993-01-13 Agfa-Gevaert Ag Accepting element for thermo-sublimation print process
US5266549A (en) * 1990-10-25 1993-11-30 Agfa-Gevaert Aktiengesellschaft Acceptor element for thermosulblimation printing
EP0482471A2 (en) * 1990-10-25 1992-04-29 Agfa-Gevaert AG Accepting element for thermo-sublimation print process
EP0539678A1 (en) * 1991-10-26 1993-05-05 Felix Schoeller jr. Papierfabrik GmbH & Co. KG Recording material for the ink jet process
EP0568031A1 (en) * 1992-04-30 1993-11-03 Fujicopian Co., Ltd. Image-receptor and ink sheet for thermal transfer
US5434598A (en) * 1992-04-30 1995-07-18 Fujicopian Co. Ltd. Method of using image receptor and thermal transfer sheet
EP0570013A1 (en) * 1992-05-15 1993-11-18 Dai Nippon Printing Co., Ltd. Thermal transfer image receiving sheet
US5457081A (en) * 1992-05-15 1995-10-10 Dai Nippon Printing Co., Ltd. Thermal transfer image receiving sheet
US5776604A (en) * 1995-02-03 1998-07-07 Mobil Oil Corporation Coating for printable plastic films
EP0767070A1 (en) * 1995-09-19 1997-04-09 Dai Nippon Printing Co., Ltd. Thermal transfer image-receiving sheet containing ethylene terpolymer
US5834397A (en) * 1995-09-19 1998-11-10 Dai Nippon Printing Co., Ltd. Thermal transfer image-receiving sheet
EP0782932A1 (en) * 1996-01-04 1997-07-09 Mobil Oil Corporation Coating for printable plastic films
AU706517B2 (en) * 1996-01-04 1999-06-17 Mobil Oil Corporation Coating for printable plastic films
EP0925192A1 (en) * 1996-09-11 1999-06-30 MOBIL OIL CORPORATION (a New York corporation) Thermal transfer printing incorporating a coating for printable plastic films
EP0925192A4 (en) * 1996-09-11 1999-11-10 Mobil Oil Corp Thermal transfer printing incorporating a coating for printable plastic films
US6939602B2 (en) 2002-12-31 2005-09-06 Exxonmobil Oil Corporation Coating for the adhesive-receiving surface of polymeric labels

Also Published As

Publication number Publication date
DE3932419C1 (en) 1991-02-21
AU5994290A (en) 1991-04-11
EP0405248B1 (en) 1994-09-07
ATE111033T1 (en) 1994-09-15
AU625870B2 (en) 1992-07-16
HU906248D0 (en) 1991-03-28
DE59007036D1 (en) 1994-10-13
US5096876A (en) 1992-03-17
JPH03132393A (en) 1991-06-05
EP0405248A3 (en) 1991-12-18
JP2664030B2 (en) 1997-10-15
HUT59975A (en) 1992-07-28

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