EP1056602B1 - Use of a heat-sensitive recording material as a label - Google Patents

Use of a heat-sensitive recording material as a label Download PDF

Info

Publication number
EP1056602B1
EP1056602B1 EP99913163A EP99913163A EP1056602B1 EP 1056602 B1 EP1056602 B1 EP 1056602B1 EP 99913163 A EP99913163 A EP 99913163A EP 99913163 A EP99913163 A EP 99913163A EP 1056602 B1 EP1056602 B1 EP 1056602B1
Authority
EP
European Patent Office
Prior art keywords
layer
heat
sensitive recording
recording material
protective layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99913163A
Other languages
German (de)
French (fr)
Other versions
EP1056602A1 (en
Inventor
Wolfgang Wagner
Jutta Berndt
Bernd Gerecht
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.)
Mitsubishi HiTech Paper Flensburg GmbH
Stora Spezialpapiere GmbH
Original Assignee
Mitsubishi HiTech Paper Flensburg GmbH
Stora 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 Mitsubishi HiTech Paper Flensburg GmbH, Stora Spezialpapiere GmbH filed Critical Mitsubishi HiTech Paper Flensburg GmbH
Publication of EP1056602A1 publication Critical patent/EP1056602A1/en
Application granted granted Critical
Publication of EP1056602B1 publication Critical patent/EP1056602B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848—Three or more layers

Definitions

  • the present invention relates to the use of a heat-sensitive recording material, consisting of a layer support, one on the front of the Layer-arranged arranged heat-sensitive recording layer containing a dye precursor and a dye acceptor that are in contact with the dye precursor undergoes a color formation reaction, one between the substrate and heat sensitive Recording layer arranged intermediate layer and a die heat sensitive recording layer covering by means of actinic radiation hardened protective layer.
  • a heat-sensitive recording material of the type specified above is known from DE-C-33 12 716 .
  • the protective layer specified there serves to limit harmful influences which act on the recording material through water, plasticizers, oils or organic solvents and impair the stability of the image density.
  • a heat-sensitive recording material with a glossy surface which has a protective layer hardened by actinic radiation which is said to show excellent adaptability to the thermal head without causing pressure drops.
  • a heat-sensitive recording material which has a protective layer arranged over the heat-sensitive recording layer and a backside coating, both of which are hardened by means of electron beams.
  • a protective layer arranged over the heat-sensitive recording layer and a backside coating, both of which are hardened by means of electron beams.
  • an intermediate layer made of crosslinked polymers which has also been hardened by means of electron beams. This intermediate layer is intended to limit the influence of the carrier material on the color formation reaction and the contrast of the resulting image with the background of the image.
  • DE-A-42 25 419 discloses a heat-sensitive recording material with a cover layer which has a resin curable by ionizable radiation, the cover layer containing a silicone surface active agent and microspheres of low molecular weight olefin polymer resin.
  • the known heat-sensitive recording material is to be used as a sticker, for example in a fully automatic labeling machine, on the one hand avoiding contamination of the recording head by components of the cover layer, but on the other hand a perfect printability should be ensured.
  • a process for producing a heat-sensitive layer and a protective layer to be applied to the heat-sensitive layer from the mixture of a water-soluble or water-dispersible binder which can be crosslinked with electron beams and a prepolymer or monomer which is curable by means of electron beams is known from EP-B-0 159 659. It is stated that better resistance to water or moisture is to be achieved compared to the conventional heat-sensitive recording materials. For this purpose the use of polysiloxane compounds is proposed.
  • a heat-sensitive recording material is also known from EP-A-0 780 241 , the protective layer of which contains a silicone component. This proposal is intended to achieve better behavior of the recording material on the thermal head and to reduce the so-called fogging.
  • a heat-sensitive recording material which has two intermediate layers applied to the heat-sensitive recording layer, namely a barrier layer and a release layer provided on the barrier layer, the release layer consisting mainly of compounds containing silicone.
  • WO 97/07985 A1 discloses a heat-sensitive recording material with an adhesive layer on the back and a protective layer which covers the heat-sensitive recording layer and is crosslinked by means of ultraviolet radiation or electron beam , which forms a matrix for embedding the first component. Other than components consisting of silicone are not disclosed. If the heat-sensitive recording material is wound onto a roll, the adhesive layer on the back and the protective layer come into contact.
  • the heat-sensitive recording material according to WO 97/07985 A1 should have a matt, writable surface which does not cause excessive wear of the thermal head, adheres only slightly to the adhesive layer and cleans the thermal head mechanically. Flexographic and offset printing processes are explicitly used only for printing addressed before applying the protective layer. The use according to the invention of a heat-sensitive recording material with a protective layer free of silicone-containing compounds as the label material to be printed in offset or flexographic printing is not known from WO 97/07985 A1
  • US-A-4 833 116 aims to improve the recording quality and the stability of the recorded image.
  • this document relates to a recording material intended for the video printing process.
  • An intermediate layer to be formed on the heat-sensitive recording layer based on an aqueous resin is coated with a protective layer curable by electron beams, to which a fine silicone powder is added.
  • EP-A-0764 548 provides a disposible sheet of disposable sheet made of neutral paper for covering the adhesive layer applied to the back of a heat-sensitive recording material.
  • the heat-sensitive recording material is intended for use as a label.
  • the use of a recording material wound on a roll in offset or flexographic printing - without a paper sheet covering the adhesive layer - is not known from this document
  • Heat-sensitive recording papers the protective layer of which is a silicone component contains, are already without additional use of release paper for the production of labels that can be unwound from rolls.
  • Through the silicone additive should avoid sticking of the back adhesive layer with the protective layer become. This creates the disadvantage that the printability in the silicone additive Flexo and offset printing is affected.
  • the roll form a thermal printer is supplied, with the use of a release paper or a silicone additive is dispensed with in the protective layer, so that a satisfactory printability in the FIexo and offset printing is guaranteed.
  • actinic radiation used in claims and description are to be understood as UV or ionizing radiation, such as electron beams.
  • the surface layer is to be hardened by means of UV rays the monomers or prepolymers used in the top layer in a known manner of initiators included.
  • By electron beam hardening one could over her Cross-section formed particularly evenly, d. H. cured, top layer achieved become.
  • the formation of the cover layer with a basis weight in the range from 0.5 to 3.5 g / m 2 is preferred
  • the one present in the protective layer and by means of actinic Radiation-cured resin component from the monomers or prepolymers of Acrylate and / or methacrylate is formed.
  • Photoinitiators can be found in a minor amount of pigments and cross-linking agents in the top layer available; in any case, however, the top layer is free of silicone Links.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A heat-sensitive recording material, comprising a layer support, on whose front face a heat-sensitive recording layer is arranged, containing a colorant precursor and a colorant acceptor which undergoes a colorant formation reaction when it comes into contact with the colorant precursor, an intermediate layer arranged between the layer support and heat-sensitive recording layer, a protective layer that is free from compounds containing silicone, is hardened by actinic radiation and covers the heat-sensitive recording layer and a self-adhesive layer arranged on the back of the layer support, is used as a label material which can be wound on a roll and printed by the offset or flexographic printing process and in which the self-adhesive layer is in contact with the protective layer in the roll.

Description

Die vorliegende Erfindung betrifft die Verwendung eines wärmeempfindlichen Aufzeichnungsmaterials, bestehend aus einem Schichtträger, einer auf der Vorderseite des Schichtträgers angeordneten wärmeempfindlichen Aufzeichnungsschicht, enthaltend einen Farbstoffvoriäufer und einen Farbakzeptor, der bei Kontakt mit dem Farbstoffvorläufer einer Farbbildungsreaktion unterliegt, einer zwischen Schichtträger und wärmeempfindlicher Aufzeichnungsschicht angeordneten Zwischenschicht und einer die wärmeempfindliche Aufzeichnungsschicht abdeckenden mittels aktinischer Strahlung gehärteten Schutzschicht.The present invention relates to the use of a heat-sensitive recording material, consisting of a layer support, one on the front of the Layer-arranged arranged heat-sensitive recording layer containing a dye precursor and a dye acceptor that are in contact with the dye precursor undergoes a color formation reaction, one between the substrate and heat sensitive Recording layer arranged intermediate layer and a die heat sensitive recording layer covering by means of actinic radiation hardened protective layer.

Ein wärmeempfindliches Aufzeichnungsmaterial der vorstehend angegebenen Art ist aus der DE-C-33 12 716 bekannt. Die dort angegebene Schutzschicht dient der Einschränkung schädlicher Einflüsse, die durch Wasser, Weichmacher, Öle oder organische Lösungsmittel auf das Aufzeichnungsmaterial einwirken und die Beständigkeit der Bilddichte beeinträchtigen.A heat-sensitive recording material of the type specified above is known from DE-C-33 12 716 . The protective layer specified there serves to limit harmful influences which act on the recording material through water, plasticizers, oils or organic solvents and impair the stability of the image density.

Gemäß der DE-A-39 35 070 wird ein wärmeempfindliches Aufzeichnungsmaterial mit einer glänzenden Oberfläche vorgeschlagen, das eine durch aktinische Strahlung gehärtete Schutzschicht aufweist, die ein ausgezeichnetes Anpassungsvermögen an den Thermokopf ohne Verursachung von Druckausfällen zeigen soll.According to DE-A-39 35 070 , a heat-sensitive recording material with a glossy surface is proposed which has a protective layer hardened by actinic radiation which is said to show excellent adaptability to the thermal head without causing pressure drops.

Aus der DE-C-40 12 185 ist ein wärmeempfindliches Aufzeichnungsmaterial bekannt, das eine über der wärmeempfindlichen Aufzeichnungsschicht angeordnete Schutzschicht und eine Rückseitenbeschichtung aufweist, die beide mittels Elektronenstrahlen ausgehärtet sind. Zwischen Trägermaterial und Aufzeichnungsschicht ist zusätzlich eine ebenfalls mittels Elektronenstrahlen ausgehärtete Zwischenschicht aus vernetzen Polymeren angeordnet Mit dieser Zwischenschicht soll der Einfluß des Trägermaterials auf die Farbbildungsreaktion und den Kontrast des entstehenden Bildes gegenüber dem Bildhintergrund eingeschränkt werden. From DE-C-40 12 185 a heat-sensitive recording material is known which has a protective layer arranged over the heat-sensitive recording layer and a backside coating, both of which are hardened by means of electron beams. Between the carrier material and the recording layer there is also an intermediate layer made of crosslinked polymers which has also been hardened by means of electron beams. This intermediate layer is intended to limit the influence of the carrier material on the color formation reaction and the contrast of the resulting image with the background of the image.

Die DE-A-42 25 419 offenbart ein wärmeempfindliches Aufzeichnungsmaterial mit einer Deckschicht, die ein durch ionisierbare Strahlung härtbares Harz aufweist, wobei in der Deckschicht ein Silikon - Oberflächenaktivmittel und Mikrokugeln von niedrig molekularem Olefinpolymerharz vorliegen. Das bekannte wärmeempfindliche Aufzeichnungsmaterial soll als Aufkleber, z B, in einer vollautomatischen Etikettiermaschine, eingesetzt werden, wobei einerseits eine Verschmutzung des Aufzeichnungskopfes durch Bestandteile der Deckschicht zu vermeiden ist, andererseits aber eine einwandfreie Bedruckbarkeit gewährleistet bleiben soll. DE-A-42 25 419 discloses a heat-sensitive recording material with a cover layer which has a resin curable by ionizable radiation, the cover layer containing a silicone surface active agent and microspheres of low molecular weight olefin polymer resin. The known heat-sensitive recording material is to be used as a sticker, for example in a fully automatic labeling machine, on the one hand avoiding contamination of the recording head by components of the cover layer, but on the other hand a perfect printability should be ensured.

Ein Verfahren zur Herstellung einer wärmeempfindlichen Schicht sowie einer auf die wärmeempfindliche Schicht aufzubringenden Schutzschicht aus der Mischung eines mit Elektronenstrahlen vemetzbaren wasserlöslichen oder wasserdispergierbaren Bindemittels und einem durch Elektronenstrahlen härtbaren Prepolymeren oder Monomeren ist aus der EP-B-0 159 659 bekannt Es wird angegeben, daß eine bessere Beständigkeit gegen Wasser oder Feuchtigkeit im Vergleich zu den konventionellen wärmeempfindlichen Aufzeichnungsmaterialien erzielt werden soll. Dazu wird die Verwendung von Polysiloxanverbindungen vorgeschlagen.A process for producing a heat-sensitive layer and a protective layer to be applied to the heat-sensitive layer from the mixture of a water-soluble or water-dispersible binder which can be crosslinked with electron beams and a prepolymer or monomer which is curable by means of electron beams is known from EP-B-0 159 659. It is stated that better resistance to water or moisture is to be achieved compared to the conventional heat-sensitive recording materials. For this purpose the use of polysiloxane compounds is proposed.

Der vorstehend diskutierte Stand der Technik zeigt, daß die bisher bekannten Schutzschichten vorwiegend zur Verbesserung der Chemikalienbeständigkeit, Wasserfestigkeit oder Weichmacherfestigkeit dienen sollen. Andererseits sind auch Vorschläge bekannt, wärmeempfindliche Aufzeichnungsmaterialien als Etikett einzusetzen. Solche Vorschläge sind bekannt aus der US-A-4 717 709 und der EP-A-0 373 903. Diese Vorschläge zielen darauf ab, die wärmeempfindlichen Etiketten auf Releasepapier anzuordnen, so daß sie auf Rollen aufgewickelt und als Rolle einem Thermodrucker vorgelegt werden können. Die Verwendung von Releasepapieren verteuert das Produkt insgesamt und ist daher nachteilig.The prior art discussed above shows that the previously known protective layers are primarily intended to improve chemical resistance, water resistance or plasticizer resistance. On the other hand, proposals are also known to use heat-sensitive recording materials as labels. Such proposals are known from US-A-4 717 709 and EP-A-0 373 903 . These proposals aim to arrange the heat-sensitive labels on release paper so that they can be wound up on rolls and presented as a roll to a thermal printer. The use of release papers makes the product more expensive overall and is therefore disadvantageous.

Aus der EP-A-0 780 241 ist auch ein wärmeempfindliches Aufzeichnungsmaterial bekannt, in dessen Schutzschicht eine Silikonkomponente enthalten ist. Mit diesem Vorschlag soll ein besseres Verhalten des Aufzeichnungsmaterials am Thermokopf erzielt und die sogenannte Schleierbildung vermindert werden. A heat-sensitive recording material is also known from EP-A-0 780 241 , the protective layer of which contains a silicone component. This proposal is intended to achieve better behavior of the recording material on the thermal head and to reduce the so-called fogging.

Aus der nicht vorveröffentlichten DE-A-197 57 589 ist ein wärmeempfindliches Aufzeichnungsmaterial bekannt, das zwei auf die wärmeempfindliche Aufzeichnungsschicht aufgebrachte Zwischenschichten aufweist, nämlich eine Sperrschicht und eine auf der Sperrschicht vorgesehene Ablöseschicht, wobei die Ablöseschicht hauptsächlich aus silikonhaltigen Verbindungen besteht.From the unpublished DE-A-197 57 58 9 a heat-sensitive recording material is known which has two intermediate layers applied to the heat-sensitive recording layer, namely a barrier layer and a release layer provided on the barrier layer, the release layer consisting mainly of compounds containing silicone.

Die WO 97/07985 A1 offenbart ein wämeempfindliches Aufzeichnungsmaterial mit einer rückseitigen Klebeschicht und einer die wärmeempfindliche Aufzeichnungsschicht abdeckenden, mittels ultravioletter Strahlung oder Elektronenstrahl vernetzten Schutzschicht Die bekannte Schutzschicht enthält neben einer festen aus (Poly)tetrafluorethylen bestehenden ersten Komponente eine zweite aus Silikon bestehende flüssige Komponente, die eine Matrix zur Einbettung der ersten Komponente bildet Andere als aus Silikon bestehende zweite Komponenten werden nicht offenbart. Wird das wärmeempfindliche Aufzeichnungsmaterial auf eine Rolle aufgewickelt, stehen rückseitige Klebeschicht und Schutzschicht in Kontakt. Das wärmeempfindliche Aufzeichnungsmaterial nach der WO 97/07985 A1 soll eine matte, beschreibbare Oberfläche aufweisen, die keinen zu starken Verschleiß des Thermokopfes bewirkt, nur gering an der Klebeschicht haftet und den Thermokopf auf mechanische Weise reinigt Flexo - und Offsetdruckverfahren werden explizit nur für das Bedrucken vor Auftrag der Schutzschicht angesprochen. Die erfindungsgemäße Verwendung eines wärmeempfindlichen Aufzeichnungsmaterials mit einer von silikonhaltigen Verbindungen freien Schutzschicht als im Offset - oder Flexodruck zu bedruckendes Etikettenmaterial ist aus der WO 97/07985 A1 nicht bekannt WO 97/07985 A1 discloses a heat-sensitive recording material with an adhesive layer on the back and a protective layer which covers the heat-sensitive recording layer and is crosslinked by means of ultraviolet radiation or electron beam , which forms a matrix for embedding the first component. Other than components consisting of silicone are not disclosed. If the heat-sensitive recording material is wound onto a roll, the adhesive layer on the back and the protective layer come into contact. The heat-sensitive recording material according to WO 97/07985 A1 should have a matt, writable surface which does not cause excessive wear of the thermal head, adheres only slightly to the adhesive layer and cleans the thermal head mechanically. Flexographic and offset printing processes are explicitly used only for printing addressed before applying the protective layer. The use according to the invention of a heat-sensitive recording material with a protective layer free of silicone-containing compounds as the label material to be printed in offset or flexographic printing is not known from WO 97/07985 A1

Die US - A - 4 833 116 hat die Verbesserung der Aufzeichnungsqualität sowie der Stabilität des aufgezeichneten Bildes zum Ziel. Im eigentlichen Sinn betrifft diese Schrift ein für das Videoprint - Verfahren vorgesehenes Aufzeichnungsmaterial. Hinsichtlich einer Verwendung des wärmeempfindlichen Aufzeichnungsmaterials im Offset - oder Flexodruck findet sich ebenso wenig eine Offenbarung wie zur Aufwicklung des wärmeempfindlichen Aufzeichnungsmaterials auf eine Rolle. Eine auf der wärmeempfindlichen Aufzeichnungsschicht auf Basis eines wässrigen Harzes zu bildende Zwischenlage wird mit einer durch Elektronenstrahlen härtbaren Schutzschicht überzogen, der ein feines Silikonpulver zugesetzt wird. US-A-4 833 116 aims to improve the recording quality and the stability of the recorded image. In the true sense, this document relates to a recording material intended for the video printing process. With regard to the use of the heat-sensitive recording material in offset or flexographic printing, there is as little disclosure as for the winding of the heat-sensitive recording material on a roll. An intermediate layer to be formed on the heat-sensitive recording layer based on an aqueous resin is coated with a protective layer curable by electron beams, to which a fine silicone powder is added.

Die EP - A - 0764 548 sieht zur Abdeckung der rückseitig auf einem wärmeempfindlichen Aufzeichnungsmaterial aufgebrachten Klebeschicht ein zum einmaligen Gebrauch bestimmtes Papierblatt (disposible sheet) aus neutralem Papier vor. Das wärmeempfindliche Aufzeichnungsmaterial ist zur Verwendung als Etikett bestimmt Die Verwendung eines auf Rolle gewickelten Aufzeichnungsmaterials im Offset - oder Flexodruck - ohne ein die Klebeschicht abdeckendes Papierblatt - ist aus dieser Schrift nicht bekannt EP-A-0764 548 provides a disposible sheet of disposable sheet made of neutral paper for covering the adhesive layer applied to the back of a heat-sensitive recording material. The heat-sensitive recording material is intended for use as a label. The use of a recording material wound on a roll in offset or flexographic printing - without a paper sheet covering the adhesive layer - is not known from this document

Wärmeempfindliche Aufzeichnungspapiere, deren Schutzschicht eine Silikonkomponente enthält, sind auch bereits ohne zusätzliche Verwendung von Releasepapier zur Herstellung von von Rollen abwickelbaren Etiketten eingesetzt worden. Durch den Silikonzusatz soll dabei ein Verkleben der rückseitigen Klebeschicht mit der Schutzschicht vermieden werden. Hier entsteht der Nachteil, daß durch den Silikonzusatz die Bedruckbarkeit im Flexo - und Offsetdruck beeinträchtigt wird.Heat-sensitive recording papers, the protective layer of which is a silicone component contains, are already without additional use of release paper for the production of labels that can be unwound from rolls. Through the silicone additive should avoid sticking of the back adhesive layer with the protective layer become. This creates the disadvantage that the printability in the silicone additive Flexo and offset printing is affected.

Es ist ein Ziel der vorliegenden Erfindung, diese Nachteile zu beseitigen und ein wärmeempfindliches Aufzeichnungsmaterial mit einer auf seiner Rückseite angebrachten Selbstklebeschicht zur Verfügung zu stellen, das in Rollenform einem Thermodrucker zugeführt wird, wobei auf den Einsatz eines Releasepapiers oder auf einen Silikonzusatz in der Schutzschicht verzichtet wird, so daß auch eine befriedigende Bedruckbarkeit im FIexo - und Offsetdruck gewährleistet ist.It is an object of the present invention to overcome these drawbacks and to be heat sensitive Recording material with one attached to its back To provide self-adhesive layer, the roll form a thermal printer is supplied, with the use of a release paper or a silicone additive is dispensed with in the protective layer, so that a satisfactory printability in the FIexo and offset printing is guaranteed.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, ein wärmeempfindliches Aufzeichnungsmaterial zu verwenden, das umfaßt

  • a) einen Schichtträger, auf dessen Vorderseite eine wärmeempfindliche Aufzeichnungsschicht angeordnet ist, die einen Farbstoffvorläufer und einen Farbakzeptor enthält, der bei Kontakt mit dem Farbstoffvorläufer einer Farbbildungsreaktion unterliegt,
  • b) eine zwischen Schichtträger und wärmeempfindlicher Aufzeichnungsschicht angeordnete Zwischenschicht,
  • c) eine die wärmeempfindliche Aulzeichnungsschicht abdeckende und mittels aktinischer Strahlung gehärtete von silikonhaitigen Verbindungen freie Schutzschicht, sowie
  • d) eine auf der Rückseite des Schichtträgers angeordnete Selbstklebeschicht,
  • e) als auf Rolle aufwickelbares und im Offset - oder Flexodruckverfahren zu bedruckendes Etikettenmaterial, bei dem in der Rolle die Selbstklebeschicht mit der Schutzschicht in Kontakt steht.
    • To achieve this object, the invention provides to use a heat-sensitive recording material which comprises
  • a) a substrate, on the front side of which a heat-sensitive recording layer is arranged, which contains a dye precursor and a color acceptor which, upon contact with the dye precursor, undergoes a color formation reaction,
  • b) an intermediate layer arranged between the substrate and the heat-sensitive recording layer,
  • c) a protective layer covering the heat-sensitive coating layer and hardened by actinic radiation and free of silicone-containing compounds, and
  • d) a self-adhesive layer arranged on the back of the layer support,
  • e) as label material which can be wound up on a roll and printed using the offset or flexographic printing process, in which the self-adhesive layer in the roll is in contact with the protective layer.

    • Es hat sich in der Praxis gezeigt, daß bei genügender Aushärtung der Schutzschicht ein Verkleben der Selbstklebeschicht mit der Schutzschicht nicht erfolgt, daß femer ein einwandfrei verlaufender Druckvorgang auf einem Thermodrucker möglich ist und Rückstände der Selbstklebeschicht auf der Deckschicht, mit der die Selbstklebeschicht auf der Rolle in Kontakt steht, nicht in nennenswertem und den Druckvorgang beeinträchtigendem Umfang auftreten.It has been shown in practice that with sufficient hardening of the protective layer Adhesion of the self-adhesive layer with the protective layer does not take place, that a perfect ongoing printing on a thermal printer is possible and residues the self-adhesive layer on the top layer, with which the self-adhesive layer on the roll is in contact, not in a noteworthy and impairing the printing process Scope occur.

    Unter dem in Ansprüchen und Beschreibung verwendeten Begriff "aktinische Strahlung" sind UV - oder ionisierende Strahlungen, wie Elektronenstrahlen, zu verstehen. Sofern die Deckschicht mittels UV-Strahlen gehärtet werden soll, müssen die zur Herstellung der Deckschicht verwendeten Monomeren bzw. Prepolymeren in bekannter Weise Zusätze von Initiatoren enthalten. Durch Elektronenstrahlhärtung konnte eine über ihren Querschnitt besonders gleichmäßig ausgebildete, d. h. ausgehärtete, Deckschicht erzielt werden.Under the term "actinic radiation" used in claims and description are to be understood as UV or ionizing radiation, such as electron beams. Provided the surface layer is to be hardened by means of UV rays the monomers or prepolymers used in the top layer in a known manner of initiators included. By electron beam hardening one could over her Cross-section formed particularly evenly, d. H. cured, top layer achieved become.

    Erfindungsgemäß wird die Ausbildung der Deckschicht mit einer Flächenmasse im Bereich von 0,5 bis 3,5 g/m2 bevorzugtAccording to the invention, the formation of the cover layer with a basis weight in the range from 0.5 to 3.5 g / m 2 is preferred

    Es wird bevorzugt, daß die in der Schutzschicht vorliegende und mittels aktinischer Strahlung ausgehärtete Harzkomponente aus den Monomeren oder Prepotymeren von Acrylat und/oder Methacrylat gebildet ist.It is preferred that the one present in the protective layer and by means of actinic Radiation-cured resin component from the monomers or prepolymers of Acrylate and / or methacrylate is formed.

    Neben den bereits bei der Härtung der Deckschicht mittels UV-Strahlen erforderlichen Fotoinitiatoren können in der Deckschicht in untergeordneter Menge Pigmente und Vernetzungshilfsmittel vorliegen; in jedem Fall ist die Deckschicht jedoch frei von silikonhaltigen Verbindungen.In addition to those already required when the top layer is hardened by means of UV rays Photoinitiators can be found in a minor amount of pigments and cross-linking agents in the top layer available; in any case, however, the top layer is free of silicone Links.

    Unter dem in Beschreibung und Patentansprüchen angegebenen Offsetdruckverfahren ist das Naßoffsetdruckverfahren zu verstehen.Under the offset printing process specified in the description and claims is to understand the wet offset printing process.

    Claims (2)

    1. Use of a heat-sensitive recording material consisting of:
      a) a layer support, on the front face of which there is arranged a heat-sensitive recording layer comprising a colour precursor and a colour acceptor that, on contact with the colour precursor, is subject to a colour-formation reaction,
      b) an intermediate layer arranged between the layer support and the heat-sensitive recording layer,
      c) a protective layer, free of silicone-containing compounds, that covers the heat-sensitive recording layer and is cured by means of actinic radiation, and also
      d) a self-adhesive layer arranged on the back of the layer support,
      e) as a label material that can be wound onto a roll and is to be printed in the offset or flexographic printing process, the self-adhesive layer being in contact with the protective layer in the roll.
    2. Use of a heat-sensitive recording material according to claim 1 having a protective layer of which the resin component, which is cured by means of actinic radiation, is formed from acrylate and/or methacrylate monomers or prepolymers.
    EP99913163A 1998-02-17 1999-02-13 Use of a heat-sensitive recording material as a label Expired - Lifetime EP1056602B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19806433 1998-02-17
    DE19806433A DE19806433B4 (en) 1998-02-17 1998-02-17 Use of a heat-sensitive recording material as a label
    PCT/EP1999/000964 WO1999042298A1 (en) 1998-02-17 1999-02-13 Use of a heat-sensitive recording material as a label

    Publications (2)

    Publication Number Publication Date
    EP1056602A1 EP1056602A1 (en) 2000-12-06
    EP1056602B1 true EP1056602B1 (en) 2002-05-15

    Family

    ID=7857943

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99913163A Expired - Lifetime EP1056602B1 (en) 1998-02-17 1999-02-13 Use of a heat-sensitive recording material as a label

    Country Status (8)

    Country Link
    US (1) US6623852B1 (en)
    EP (1) EP1056602B1 (en)
    JP (1) JP2002503573A (en)
    AT (1) ATE217583T1 (en)
    DE (2) DE19806433B4 (en)
    ES (1) ES2177266T3 (en)
    NO (1) NO20000768L (en)
    WO (1) WO1999042298A1 (en)

    Families Citing this family (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10051294C1 (en) * 2000-10-16 2002-04-18 Mitsubishi Hitec Paper Flensbu Thermographic material useful for ticket, especially lottery ticket, has protective coating of water-insoluble, self-crosslinking acrylic polymer and crosslinker pigmented (mainly) with highly purified, alkali-treated bentonite
    DE20117479U1 (en) * 2001-10-25 2003-03-06 Hummel Gmbh & Co Non-top-coated thermopaper printable by wet offset to give e.g. railway or airline tickets has an acrylic protective layer containing a transparent filler
    DE10341168A1 (en) 2003-09-06 2005-04-07 Mitsubishi Hitec Paper Flensburg Gmbh Heat-sensitive recording material and its use
    DE202015009476U1 (en) 2015-06-24 2017-10-26 Mitsubishi Hitec Paper Europe Gmbh Heat-sensitive recording material
    AU2020313987A1 (en) * 2019-07-18 2022-02-17 Isp Investments Llc Flexible self-adhesive label comprising a radiation-sensitive indicator for a syringe
    PL3885152T3 (en) 2020-03-23 2022-12-12 Koehler Innovation & Technology Gmbh Use of n-(p-toluenesulfonyl)-n'-(3-p-toluenesulfonyloxyphenyl)urea as colour developer in a heat-sensitive recording material
    WO2024078971A1 (en) 2022-10-11 2024-04-18 Koehler Innovation & Technology Gmbh Heat-sensitive recording material

    Family Cites Families (15)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4484204A (en) 1982-04-10 1984-11-20 Kanzaki Paper Manufacturing Co., Ltd. Heat-sensitive record material
    JPS60220786A (en) * 1984-04-17 1985-11-05 Kanzaki Paper Mfg Co Ltd Manufacture of thermal recording medium
    DE3529781A1 (en) * 1984-08-20 1986-02-20 Ricoh Co., Ltd., Tokio/Tokyo HEAT-SENSITIVE ADHESIVE RECORDING MATERIAL
    US4717709A (en) 1984-11-02 1988-01-05 Tomoegawa Paper Manufacturing Co., Ltd. Thermosensitive recording material
    US4833116A (en) * 1986-10-16 1989-05-23 Kanzaki Paper Mfg. Co., Ltd. Heat-sensitive recording material
    DE3935070A1 (en) 1988-10-21 1990-04-26 Dainippon Ink & Chemicals Thermographic material with photocured top coat - contains poly:unsatd. heterocyclic cpd., pref. modified tris:hydroxy-alkyl isocyanurate (meth)acrylate
    DE68921164T2 (en) 1988-12-12 1995-06-14 Tomoegawa Paper Mfg Co Ltd Heat-sensitive recording paper for labels.
    DE4012185C1 (en) * 1990-04-14 1991-05-23 Renker Gmbh & Co Kg, 5160 Dueren, De
    JPH0532051A (en) 1991-07-31 1993-02-09 Kanzaki Paper Mfg Co Ltd Thermal recording material
    US5840657A (en) * 1994-02-18 1998-11-24 The Standard Register Company Imagable linerless pressure sensitive adhesive
    JP3071130B2 (en) * 1994-09-13 2000-07-31 株式会社巴川製紙所 Reversible thermosensitive recording medium
    US5658661C1 (en) 1995-08-29 2002-06-11 Media Solutions Inc Matted release coat for self-wound thermal printable facestock
    JPH09183270A (en) * 1995-09-21 1997-07-15 Ricoh Co Ltd Thermal recording type release label
    EP0780241B1 (en) 1995-12-21 2001-08-01 Ricoh Company, Ltd Thermosensitive recording material with protective layer
    US5977021A (en) * 1996-12-24 1999-11-02 Oji Paper Co., Ltd Heat-sensitive recording adhesive sheet

    Also Published As

    Publication number Publication date
    US6623852B1 (en) 2003-09-23
    DE19806433A1 (en) 1999-08-19
    NO20000768L (en) 2000-03-24
    ES2177266T3 (en) 2002-12-01
    EP1056602A1 (en) 2000-12-06
    DE59901445D1 (en) 2002-06-20
    ATE217583T1 (en) 2002-06-15
    WO1999042298A1 (en) 1999-08-26
    DE19806433B4 (en) 2004-11-11
    JP2002503573A (en) 2002-02-05
    NO20000768D0 (en) 2000-02-16

    Similar Documents

    Publication Publication Date Title
    DE2847660C2 (en)
    DE69935012T2 (en) ETHYLENE VINYL ACETATE CARBON MONOXYDE TERPOLYMER-CONTAINING IMAGE RECORDING MEDIUM
    EP3401116B1 (en) Pvc plastic panel
    DE69820949T2 (en) Printable adhesive mouse pad
    DE2831577A1 (en) DRY PRINT MATERIAL
    DE4439031C2 (en) Polymer coated multilayer material and process for its manufacture
    DE69930108T2 (en) ADHESIVITY INCREASING SURFACES FOR MARKING MATERIALS
    DE60031696T2 (en) DIGITALLY PRINTABLE RELEASE COATING AND THIS COATING USED PRINTING CONSTRUCT
    DE1671561A1 (en) Recording material for developing colorless recordings with coloring substances
    EP0734713A2 (en) Data carrier with encapsulated fragrances and process for producing same
    EP1056602B1 (en) Use of a heat-sensitive recording material as a label
    DE3028507A1 (en) Polishing method of a support
    DE2921643C2 (en) Dry transfer system and method for dry transferring a film
    DE69931955T2 (en) IMAGE RECEIVING LAYER AND IMAGE RECEIVING ELEMENT FOR RECORDING THROUGH THERMAL TRANSMISSION
    DE60102924T2 (en) INKS FOR INK JET FOR PRINTING ON CD-R SUPPORT
    DE4121599A1 (en) Plastic sheeting as self-adhesive coating for glass, metal, etc. - has corona-treated ethylene]-propylene] copolymer base film coated with latex adhesive, acrylic] latex, etc., and opt. embossed or patterned
    DE60202903T2 (en) A method of making a decorative heat-sensitive transfer sheet on a flexible support system
    EP2639075B1 (en) Method for producing a valuable document and valuable document derived from the method
    DE2704328C2 (en)
    DE4117317C2 (en) Recording sheet for heat transfer recording by sublimation and method for its production
    EP0742486A1 (en) Support for forming colour proofs in the analogic proof system
    DE69839153T2 (en) HARDENABLE COATING LAYER COMPOSITION AND METHOD OF USE
    EP0938419A1 (en) Thermo-sensitive printing sheet comprising a back coating containing starch, an acrylate copolymer and an alkaline catalyst
    EP1771307A1 (en) Stock comprising a masking field for hiding a confidential information pattern
    EP1477319A2 (en) Plastic foil printable with digital printing

    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

    17P Request for examination filed

    Effective date: 20000201

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    17Q First examination report despatched

    Effective date: 20011017

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    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 CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20020515

    Ref country code: IE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20020515

    REF Corresponds to:

    Ref document number: 217583

    Country of ref document: AT

    Date of ref document: 20020615

    Kind code of ref document: T

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    Ref country code: CH

    Ref legal event code: EP

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FG4D

    Free format text: GERMAN

    REF Corresponds to:

    Ref document number: 59901445

    Country of ref document: DE

    Date of ref document: 20020620

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

    Ref country code: SE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20020815

    Ref country code: DK

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20020815

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

    Ref country code: PT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20020816

    GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

    Effective date: 20020821

    NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
    ET Fr: translation filed
    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FG2A

    Ref document number: 2177266

    Country of ref document: ES

    Kind code of ref document: T3

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FD4D

    Ref document number: 1056602E

    Country of ref document: IE

    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: 20030213

    Ref country code: CY

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20030213

    Ref country code: AT

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

    Effective date: 20030213

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

    Ref country code: MC

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

    Effective date: 20030228

    Ref country code: LI

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

    Effective date: 20030228

    Ref country code: CH

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

    Effective date: 20030228

    Ref country code: BE

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

    Effective date: 20030228

    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

    Effective date: 20030218

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

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

    Ref country code: GR

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

    Effective date: 20020515

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 18

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 19

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R081

    Ref document number: 59901445

    Country of ref document: DE

    Owner name: MITSUBISHI HITEC PAPER EUROPE GMBH, DE

    Free format text: FORMER OWNER: MITSUBISHI HITEC PAPER FLENSBURG GMBH, 24941 FLENSBURG, DE

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 20

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

    Ref country code: ES

    Payment date: 20180314

    Year of fee payment: 20

    Ref country code: GB

    Payment date: 20180226

    Year of fee payment: 20

    Ref country code: FI

    Payment date: 20180227

    Year of fee payment: 20

    Ref country code: DE

    Payment date: 20180301

    Year of fee payment: 20

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

    Ref country code: IT

    Payment date: 20180228

    Year of fee payment: 20

    Ref country code: FR

    Payment date: 20180227

    Year of fee payment: 20

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: PC2A

    Owner name: MITSUBISHI HITEC PAPER EUROPE GMBH

    Effective date: 20181108

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: 732E

    Free format text: REGISTERED BETWEEN 20181105 AND 20181107

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R071

    Ref document number: 59901445

    Country of ref document: DE

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: PE20

    Expiry date: 20190212

    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 EXPIRATION OF PROTECTION

    Effective date: 20190212

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FD2A

    Effective date: 20200804

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

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

    Effective date: 20190214