EP0256971A1 - Colour ribbon for dye transfer by heat reaction - Google Patents

Colour ribbon for dye transfer by heat reaction Download PDF

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Publication number
EP0256971A1
EP0256971A1 EP87730092A EP87730092A EP0256971A1 EP 0256971 A1 EP0256971 A1 EP 0256971A1 EP 87730092 A EP87730092 A EP 87730092A EP 87730092 A EP87730092 A EP 87730092A EP 0256971 A1 EP0256971 A1 EP 0256971A1
Authority
EP
European Patent Office
Prior art keywords
layer
release layer
ribbon
ink ribbon
ink
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
EP87730092A
Other languages
German (de)
French (fr)
Other versions
EP0256971B1 (en
Inventor
Friedrich-Wilhelm Dipl.Ing. Drees
Hartmut Dr.-Ing. Grethen
Friedrich Dr. Phil. Hagemeyer
Wolfgang Dr.-Ing. Pekruhn
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT87730092T priority Critical patent/ATE53793T1/en
Publication of EP0256971A1 publication Critical patent/EP0256971A1/en
Application granted granted Critical
Publication of EP0256971B1 publication Critical patent/EP0256971B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41M5/26—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
    • B41M5/423—Intermediate, backcoat, or covering layers characterised by non-macromolecular compounds, e.g. waxes
    • 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

Definitions

  • the invention relates to an ink ribbon for dye transfer under the action of heat with a carrier layer and a color layer which adheres to the carrier layer with the interposition of a heat-soluble release layer.
  • Such an ink ribbon has a backing layer which consists of solid polymers including electrically conductive carbon black; the carrier layer can additionally be coated with a thin aluminum layer.
  • a release layer (so-called release layer) consisting of an alkane or crystalline polyethylene with a melting temperature of approximately 108 ° C. is applied to the carrier layer or the aluminum layer.
  • a color layer containing colorants and binders adheres to this release layer.
  • electrical current is introduced into the electrically conductive carrier layer via electrodes of a thermal print head.
  • the current flow leads to a local heating of the carrier layer, so that the stripping layer underneath melts and the ink layer detaching from it is transferred to a recording medium - usually paper - brought into contact with the ink ribbon.
  • the ink ribbon has to be separated from the recording medium in order to separate the applied ink from the melted release layer before it solidifies again and the ink can adhere to it again.
  • the ink ribbon is pulled off the recording medium at a large angle immediately behind the printing zone.
  • the up Drawing carrier there is a gradual advance of the up Drawing carrier, as it is usually required, in particular in the case of thermal print heads with printing elements arranged in series and controlled in groups in succession, is not possible.
  • the invention is based on the object of specifying an ink ribbon in which after the ink transfer to a recording medium, renewed adhesion of the cooled ink to the ink ribbon is excluded.
  • release layer consists of a sublimable material in the ribbon of the type mentioned.
  • the main advantage of the ink ribbon according to the invention is that when the ink ribbon is heated locally, the sublimable release layer evaporates in the area of the printing zone and the ink transferred to the recording medium can then no longer be stuck to the ink ribbon.
  • Another advantage is that the cooling behavior of the release and ink layer, unlike the known ink ribbon, can be disregarded when printing on the recording medium.
  • it is no longer necessary to detach the ink ribbon immediately behind the printing zone from the recording medium, so that in connection with the ink ribbon according to the invention it is also possible to use thermal print heads which are only for use with ribbons without a release layer are formed.
  • the release layer of the ink ribbon according to the invention is preferably sublimable between 50 ° C and 90 ° C, so that the sublimation temperature is on the one hand significantly above the normal ambient temperature and the operating temperature of a printer, on the other hand the printing temperature required for printing and thus the control energy required for a thermal printhead is relatively low is.
  • the release layer consists of either 2-chloroacrylic acid, 5-nitroquinoline or 2-chloro-aniline-N-acetate. These substances result in a release layer which is stable below the sublimation temperature and is difficult to dissolve in water, to which the color layer adheres well.
  • the sublimation temperature is around 50 ° C to 90 ° C and the volatilizing substances are not harmful to health.
  • the figure shows a cross section through an embodiment of the ink ribbon according to the invention with a thermal print head and a recording medium.
  • the recording medium 1 - usually paper - is guided past a thermal print head 3 in the direction of the arrow 4 with the interposition of the ink ribbon 2.
  • the ink ribbon 2 has a carrier layer 5, which consists of polyvinyl including electrically conductive soot particles.
  • the carrier layer 5 carries a release layer 6, which consists for example of 2-chloroacrylic acid, 5-nitroquinoline or 2 chloroaniline-N-acetate.
  • a color layer facing the recording medium 1 adheres to the release layer 6 7, which contains dyes bound in waxes.
  • the release layer 6 is sublimable and evaporates above the sublimation temperature of about 50 ° C to 90 ° C.
  • the ink ribbon 2, with its carrier layer 5, is in contact with the thermal print head 3 in the area of a print zone 8.
  • the thermal print head 3 has a plurality of electrode pairs 9 arranged transversely to the plane of the drawing, the individual electrodes of which are separated from one another by an insulating body 10.
  • a voltage is applied between the electrodes of a pair of electrodes 9, so that a current 11 flows through the electrically conductive carrier layer 5 in the area of the printing zone 8, which selectively heats the carrier layer 5 and the underlying release layer 6.
  • the release layer 6 heats up to a temperature above the sublimation temperature, the substances in the release layer 6 evaporate, so that the ink 7 printed by the thermal print head 3 against the recording medium 1 adheres to the recording medium 1. Due to the lack of the release layer 6 in the area of the detached ink 7, it can no longer stick to the ink ribbon 2 even after the printing zone 8 has cooled, so that perfect ink transfer to the recording medium 1 is ensured.
  • the ink ribbon according to the invention can also be used in conjunction with other heat sources, such as e.g. Use lasers or thermal printheads that have heating elements.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Decoration By Transfer Pictures (AREA)

Abstract

An improved inking ribbon for color transfer under the influence of heat comprises the ribbon having a carrier layer and a colored layer with the heat-soluble release layer interposed therebetween, which release layer is composed of a sublimable material to avoid renewed adhesion of the released portion of the color layer to the inking ribbon after a color transfer to the printing medium has occured.

Description

Die Erfindung betrifft ein Farbband zur Farbstoffübertragung unter Wärmeeinwirkung mit einer Trägerschicht und einer Farbschicht, die unter Zwischenlage einer wärmelöslichen Ablöseschicht an der Trägerschicht haftet.The invention relates to an ink ribbon for dye transfer under the action of heat with a carrier layer and a color layer which adheres to the carrier layer with the interposition of a heat-soluble release layer.

Ein derartiges, aus der EP-OS 0 096 740 bekanntes Farbband weist eine Trägerschicht auf, die aus festen Polymeren unter Einschluß von elektrisch leitendem Ruß besteht; die Träger­schicht kann zusätzlich mit einer dünnen Aluminiumschicht überzogen sein. Auf der Trägerschicht bzw. der Aluminium­schicht ist eine Ablöseschicht (sog. Release-Schicht) be­stehend aus einem Alkan oder aus kristallinem Polyethylen mit einer Schmelztemperatur von etwa 108 °C aufgebracht. An dieser Ablöseschicht haftet eine Farb- und Bindemittel ent­haltende Farbschicht. Zum Drucken eines Bildpunktes wird über Elektroden eines Thermodruckkopfes elektrischer Strom in die elektrisch leitende Trägerschicht eingeleitet. Der Stromfluß führt zu einer lokalen Aufheizung der Träger­schicht, so daß die darunterliegende Ablöseschicht schmilzt und die sich von ihr lösende Farbschicht auf einen mit dem Farbband in Kontakt gebrachten Aufzeichnungsträger - in der Regel Papier - übertragen wird. Unmittelbar nach diesem Farbübertrag muß das Farbband von dem Aufzeichnungsträger getrennt werden, um die aufgetragene Farbe von der aufge­schmolzenen Ablöseschicht zu trennen, bevor sich diese wieder verfestigt und die Farbe wieder an ihr haften kann. Hierzu wird das Farbband unmittelbar hinter der Druckzone unter einem großen Winkel von dem Aufzeichnungsträger abge­zogen. Dabei ist jedoch ein schrittweiser Vorschub des Auf­ zeichnungsträgers, wie er insbesondere bei Thermodruckköpfen mit in Reihe angeordneten und gruppenweise nacheinander angesteuerten Druckelementen zumeist erforderlich ist, nicht möglich.Such an ink ribbon, known from EP-OS 0 096 740, has a backing layer which consists of solid polymers including electrically conductive carbon black; the carrier layer can additionally be coated with a thin aluminum layer. A release layer (so-called release layer) consisting of an alkane or crystalline polyethylene with a melting temperature of approximately 108 ° C. is applied to the carrier layer or the aluminum layer. A color layer containing colorants and binders adheres to this release layer. To print a pixel, electrical current is introduced into the electrically conductive carrier layer via electrodes of a thermal print head. The current flow leads to a local heating of the carrier layer, so that the stripping layer underneath melts and the ink layer detaching from it is transferred to a recording medium - usually paper - brought into contact with the ink ribbon. Immediately after this ink transfer, the ink ribbon has to be separated from the recording medium in order to separate the applied ink from the melted release layer before it solidifies again and the ink can adhere to it again. For this purpose, the ink ribbon is pulled off the recording medium at a large angle immediately behind the printing zone. However, there is a gradual advance of the up Drawing carrier, as it is usually required, in particular in the case of thermal print heads with printing elements arranged in series and controlled in groups in succession, is not possible.

Der Erfindung liegt die Aufgabe zugrunde, ein Farbband anzu­geben, bei dem nach dem Farbübertrag auf einen Aufzeichnungsträger ein erneutes Haften der abgekühlten Farbe an dem Farbband ausgeschlossen ist.The invention is based on the object of specifying an ink ribbon in which after the ink transfer to a recording medium, renewed adhesion of the cooled ink to the ink ribbon is excluded.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß bei dem Farbband der eingangs angegebenen Art die Ablöseschicht aus einem sublimierbaren Material besteht.This object is achieved in that the release layer consists of a sublimable material in the ribbon of the type mentioned.

Aus der DE-PS 33 15 265 ist beispielsweise bekannt, subli­mierbare Farbstoffe zu verwenden, wobei diese Farbstoffe aus der Farbschicht heraussublimiert und auf einen Aufzeich­nungsträger übertragen werden; die bekannten Farbbänder ent­halten jedoch keine Ablöseschicht, so daß auch das Farbüber­tragungsverfahren ein völlig anderes ist.From DE-PS 33 15 265 it is known, for example, to use sublimable dyes, these dyes being sublimed out of the color layer and transferred to a recording medium; however, the known ink ribbons do not contain a release layer, so that the ink transfer process is also completely different.

Der wesentliche Vorteil des erfindungsgemäßen Farbbandes besteht darin, daß bei der lokalen Aufheizung des Farbbandes die sublimierbare Ablöseschicht im Bereich der Druckzone verdampft und danach ein Ankleben der auf den Aufzeichnungs­träger übertragenen Farbe an dem Farbband nicht mehr mög­lich ist.The main advantage of the ink ribbon according to the invention is that when the ink ribbon is heated locally, the sublimable release layer evaporates in the area of the printing zone and the ink transferred to the recording medium can then no longer be stuck to the ink ribbon.

Ein weiterer Vorteil besteht darin, daß das Abkühlverhalten der Ablöse- und Farbschicht im Unterschied zu dem bekannten Farbband beim Bedrucken des Aufzeichnungsträgers unberück­sichtigt bleiben kann. So ist es insbesondere nicht mehr er­forderlich, das Farbband unmittelbar hinter der Druckzone sofort von dem Aufzeichnungsträger abzulösen, so daß in Ver­bindung mit dem erfindungsgemäßen Farbband auch solche Thermodruckköpfe Verwendung finden können, die lediglich für eine Verwendung mit Farbbändern ohne Ablöseschicht aus­gebildet sind.Another advantage is that the cooling behavior of the release and ink layer, unlike the known ink ribbon, can be disregarded when printing on the recording medium. In particular, it is no longer necessary to detach the ink ribbon immediately behind the printing zone from the recording medium, so that in connection with the ink ribbon according to the invention it is also possible to use thermal print heads which are only for use with ribbons without a release layer are formed.

Die Ablöseschicht des erfindungsgemäßen Farbbandes ist vorzugsweise zwischen 50 °C und 90 °C sublimierbar, so daß die Sublimationstemperatur einerseits deutlich über der normalen Umgebungstemperatur und der Betriebstempera­tur eines Druckers liegt, andererseits die zum Drucken er­forderliche Drucktemperatur und damit die erforderliche An­steuerenergie für einen Thermodruckkopf verhältnismäßig gering ist.The release layer of the ink ribbon according to the invention is preferably sublimable between 50 ° C and 90 ° C, so that the sublimation temperature is on the one hand significantly above the normal ambient temperature and the operating temperature of a printer, on the other hand the printing temperature required for printing and thus the control energy required for a thermal printhead is relatively low is.

Bei bevorzugten Ausbildungen des erfindungsgemäßen Farb­bandes besteht die Ablöseschicht entweder aus 2-Chloracryl­säure, 5-Nitrochinolin oder 2-Chlor-anilin-N-acetat. Mit diesen Stoffen ergibt sich eine unterhalb der Sublimationstemperatur stabile, nur schwer wasserlösliche Ablöseschicht, an der die Farbschicht gut haftet. Die Sublimationstemperatur liegt bei etwa 50 °C bis 90 °C und die sich beim Erhitzen verflüchtigenden Stoffe sind nicht gesundheitsschädlich.In preferred embodiments of the ink ribbon according to the invention, the release layer consists of either 2-chloroacrylic acid, 5-nitroquinoline or 2-chloro-aniline-N-acetate. These substances result in a release layer which is stable below the sublimation temperature and is difficult to dissolve in water, to which the color layer adheres well. The sublimation temperature is around 50 ° C to 90 ° C and the volatilizing substances are not harmful to health.

Zur Erläuterung der Erfindung zeigt die Figur einen Quer­schnitt durch ein Ausführungsbeispiel des erfindungsge­mäßen Farbbandes mit einem Thermodruckkopf und einem Auf­zeichnungsträger.To explain the invention, the figure shows a cross section through an embodiment of the ink ribbon according to the invention with a thermal print head and a recording medium.

Der Aufzeichnungsträger 1 - in der Regel Papier - wird unter Zwischenlage des Farbbandes 2 an einem Thermodruckkopf 3 in Richtung des Pfeiles 4 vorbeigeführt. Das Farbband 2 weist eine Trägerschicht 5 auf, die aus Polyvinyl unter Einschluß elektrisch leitender Rußpartikel besteht. Die Trägerschicht 5 trägt eine Ablöseschicht (Release-Schicht) 6, die beispielsweise aus 2-Chloracrylsäure, 5-Nitrochinolin oder 2 Chloranilin-N-acetat besteht. An der Ablöseschicht 6 haftet eine dem Aufzeichnungsträger 1 zugewandte Farbschicht 7, die in Wachsen gebundene Farbstoffe enthält. Die Release-­Schicht 6 ist sublimierbar und verflüchtigt sich oberhalb der Sublimationstemperatur von etwa 50° C bis 90° C.The recording medium 1 - usually paper - is guided past a thermal print head 3 in the direction of the arrow 4 with the interposition of the ink ribbon 2. The ink ribbon 2 has a carrier layer 5, which consists of polyvinyl including electrically conductive soot particles. The carrier layer 5 carries a release layer 6, which consists for example of 2-chloroacrylic acid, 5-nitroquinoline or 2 chloroaniline-N-acetate. A color layer facing the recording medium 1 adheres to the release layer 6 7, which contains dyes bound in waxes. The release layer 6 is sublimable and evaporates above the sublimation temperature of about 50 ° C to 90 ° C.

Das Farbband 2 befindet sich mit seiner Trägerschicht 5 im Bereich einer Druckzone 8 in Kontakt mit dem Thermodruck­kopf 3. Dieser weist eine Vielzahl von quer zur Zeichenebene angeordneten Elektrodenpaaren 9 auf, deren Einzelelektroden durch einen Isolierkörper 10 voneinander getrennt sind. Zum Drucken eines Bildpunktes wird zwischen die Elektroden eines Elektrodenpaares 9 eine Spannung gelegt, so daß im Bereich der Druckzone 8 durch die elektrisch leitende Trägerschicht 5 ein Strom 11 fließt, der die Trägerschicht 5 und die darunterliegende Ablöseschicht 6 punktuell aufheizt. Sobald sich dabei die Ablöseschicht 6 auf eine Temperatur oberhalb der Sublimationstemperatur erwärmt, verflüchtigen sich die Stoffe der Ablöseschicht 6, so daß die von dem Thermodruckkopf 3 gegen den Aufzeichnungsträger 1 gedruckte Farbe 7 an dem Aufzeichnungsträger 1 haften bleibt. Aufgrund des Fehlens der Ablöseschicht 6 im Bereich der abgelösten Farbe 7 kann diese auch nach dem Abkühlen der Druckzone 8 nicht mehr an dem Farbband 2 kleben, so daß eine einwand­freie Farbübertragung auf den Aufzeichnungsträger 1 gewähr­leistet ist.The ink ribbon 2, with its carrier layer 5, is in contact with the thermal print head 3 in the area of a print zone 8. The thermal print head 3 has a plurality of electrode pairs 9 arranged transversely to the plane of the drawing, the individual electrodes of which are separated from one another by an insulating body 10. To print a pixel, a voltage is applied between the electrodes of a pair of electrodes 9, so that a current 11 flows through the electrically conductive carrier layer 5 in the area of the printing zone 8, which selectively heats the carrier layer 5 and the underlying release layer 6. As soon as the release layer 6 heats up to a temperature above the sublimation temperature, the substances in the release layer 6 evaporate, so that the ink 7 printed by the thermal print head 3 against the recording medium 1 adheres to the recording medium 1. Due to the lack of the release layer 6 in the area of the detached ink 7, it can no longer stick to the ink ribbon 2 even after the printing zone 8 has cooled, so that perfect ink transfer to the recording medium 1 is ensured.

Alternativ zu dem dargestellten Ausführungsbeispiel läßt sich das erfindungsgemäße Farbband beim Vorsehen einer nicht leitenden Trägerschicht auch in Verbindung mit anderen Wärmequellen, wie z.B. Laser oder Thermodruckköpfe, die Heizelemente aufweisen, verwenden.As an alternative to the exemplary embodiment shown, the ink ribbon according to the invention can also be used in conjunction with other heat sources, such as e.g. Use lasers or thermal printheads that have heating elements.

Claims (5)

1. Farbband zur Farbstoffübertragung unter Wärmeeinwirkung mit einer Trägerschicht und einer Farbschicht, die unter Zwischenlage einer wärmelöslichen Ablöseschicht an der Trägerschicht haftet,
dadurch gekennzeichnet,
daß die Ablöseschicht (6) aus einem sublimierbaren Material besteht.1. Ribbon for dye transfer under the action of heat with a carrier layer and a color layer which adheres to the carrier layer with the interposition of a heat-soluble release layer,
characterized,
that the release layer (6) consists of a sublimable material. 2. Farbband nach Anspruch 1,
dadurch gekennzeichnet,
daß die Ablöseschicht (6) zwischen 50 °C und 90 °C sublimierbar ist.2. Ribbon according to claim 1,
characterized,
that the release layer (6) between 50 ° C and 90 ° C is sublimable. 3. Farbband nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Ablöseschicht (6) aus 2-Chloracrylsäure.3. Ribbon according to claim 1 or 2,
characterized,
that the release layer (6) from 2-chloroacrylic acid. 4. Farbband nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Ablöseschicht (6) aus 5-Nitrochinolin besteht.4. Ribbon according to claim 1 or 2,
characterized,
that the release layer (6) consists of 5-nitroquinoline. 5. Farbband nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Ablöseschicht (6) aus 2-Chlor-anilin-N-acetat besteht.5. Ribbon according to claim 1 or 2,
characterized,
that the release layer (6) consists of 2-chloro-aniline-N-acetate.
EP87730092A 1986-08-20 1987-08-13 Colour ribbon for dye transfer by heat reaction Expired - Lifetime EP0256971B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87730092T ATE53793T1 (en) 1986-08-20 1987-08-13 RIBBON FOR HEAT DYE TRANSFER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3628194 1986-08-20
DE19863628194 DE3628194A1 (en) 1986-08-20 1986-08-20 RIBBON FOR DYE TRANSFER UNDER THE INFLUENCE OF HEAT

Publications (2)

Publication Number Publication Date
EP0256971A1 true EP0256971A1 (en) 1988-02-24
EP0256971B1 EP0256971B1 (en) 1990-05-02

Family

ID=6307764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730092A Expired - Lifetime EP0256971B1 (en) 1986-08-20 1987-08-13 Colour ribbon for dye transfer by heat reaction

Country Status (6)

Country Link
US (1) US4756633A (en)
EP (1) EP0256971B1 (en)
JP (1) JPS6353088A (en)
AT (1) ATE53793T1 (en)
DE (2) DE3628194A1 (en)
ES (1) ES2014326B3 (en)

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Publication number Priority date Publication date Assignee Title
JPH0790665B2 (en) * 1986-08-27 1995-10-04 株式会社日立製作所 Thermal transfer method and thermal transfer ink sheet used therefor
US4925324A (en) * 1987-10-02 1990-05-15 Alps Electric Co., Ltd. Color ink ribbon for thermal printer
US5264279A (en) * 1989-09-19 1993-11-23 Dai Nippon Insatsu Kabushiki Kaisha Composite thermal transfer sheet
DE20311530U1 (en) * 2003-07-26 2004-12-02 Planatol Klebetechnik Gmbh Device for mechanical adhesive transfer
WO2005024908A2 (en) * 2003-09-05 2005-03-17 Si2 Technologies, Inc. Laser transfer articles and method of making

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US3663155A (en) * 1968-09-30 1972-05-16 Owens Illinois Inc Staining plastic surfaces
US3962513A (en) * 1974-03-28 1976-06-08 Scott Paper Company Laser transfer medium for imaging printing plate
JPS5248224B2 (en) * 1974-06-14 1977-12-08
US4021591A (en) * 1974-12-04 1977-05-03 Roy F. DeVries Sublimation transfer and method
US4058644A (en) * 1974-12-04 1977-11-15 Devries Roy F Sublimation transfer and method
JPS58188695A (en) * 1982-04-30 1983-11-04 Jujo Paper Co Ltd Thermal recording sheet
US4453839A (en) * 1982-06-15 1984-06-12 International Business Machines Corporation Laminated thermal transfer medium for lift-off correction and embodiment with resistive layer composition including lubricating contact graphite coating
DE3347337C2 (en) * 1982-12-28 1986-10-30 Ricoh Co., Ltd., Tokio/Tokyo Electrothermal recording material
JPH0717109B2 (en) * 1985-04-09 1995-03-01 株式会社東芝 Thermal transfer ink ribbon and thermal transfer recording apparatus using the same

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* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Band 79, Nr. 19, 12. November 1973, Seite 341, Zusammenfassung Nr. 131371a, Columbus, Ohio, US; & JP-A-48 47 844 (JUJO PAPER MANUFACTURING CO. LTD AND NIPPON TELEGRAPH AND TELEPHONE PUBLIC CORP.) 06-07-1973 *
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 100 (M-470)[2157], 16. April 1986; & JP-A-60 236 791 (KONISHIROKU SHASHIN KOGYO K.K.) 25-11-1985 *

Also Published As

Publication number Publication date
ES2014326B3 (en) 1990-07-01
DE3628194A1 (en) 1988-02-25
ATE53793T1 (en) 1990-06-15
JPS6353088A (en) 1988-03-07
DE3762488D1 (en) 1990-06-07
US4756633A (en) 1988-07-12
EP0256971B1 (en) 1990-05-02

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