EP0352519A2 - Thermal dye ribbon - Google Patents
Thermal dye ribbon Download PDFInfo
- Publication number
- EP0352519A2 EP0352519A2 EP89112329A EP89112329A EP0352519A2 EP 0352519 A2 EP0352519 A2 EP 0352519A2 EP 89112329 A EP89112329 A EP 89112329A EP 89112329 A EP89112329 A EP 89112329A EP 0352519 A2 EP0352519 A2 EP 0352519A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermal
- wax
- paraffin
- vinyl acetate
- ribbon
- 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
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
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/392—Additives, other than colour forming substances, dyes or pigments, e.g. sensitisers, transfer promoting agents
- B41M5/395—Macromolecular additives, e.g. binders
-
- 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
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/392—Additives, other than colour forming substances, dyes or pigments, e.g. sensitisers, transfer promoting agents
Definitions
- the invention relates to a thermal ribbon, in particular thermocarbon ribbon, with a customary carrier and a layer of a melting ink formed on one side of the carrier, which contains pigments and optionally dyes and other additives.
- Thermal ribbons have long been known, they have a melting color on a film-like carrier, for example made of paper, a plastic or the like, in particular in the form of a plastic and / or wax-bound colorant or carbon black layer.
- the melting ink is melted by means of a thermal print head and transferred to a recording paper or a printing paper.
- Thermal printers or thermal print heads that can be used for this process are e.g. B. from DE-ASen 2 062 494 and 2 406 613 and DE-OS 3 224 445 known.
- z. B. proceed as follows:
- a letter consisting of heated dots and to be printed on a paper sheet is formed on the thermal print head of the printer.
- the thermal print head presses the thermal ribbon onto the paper to be written on.
- the heated letter of the thermal print head at a temperature of about 400 ° C leads to the melting ink being melted at the heated point and being transferred to the paper sheet in contact with it.
- the used part of the thermal ribbon is fed to a spool.
- the thermal ribbon can have different melting colors next to each other. With the combination of the basic colors blue, yellow and red, colored print images can be produced. Compared to the usual color photographs, there is no disadvantageous development and fixing. Thermal printers can be operated at high writing speeds (a DIN A4 sheet can be printed in about 10 seconds) and without annoying background noises.
- thermal ribbons described above there are also those in which the thermal symbol is not impressed by the action of a thermal print head, but by resistance heating of a specially designed film-like carrier.
- the heat is generated by the flow of an electric current, for this purpose the melting ink and / or its support must contain electrically conductive materials.
- the melting color which represents the actual functional layer during the printing process, also contains the materials already described above.
- ETR Electro Thermal Ribbon
- a corresponding thermal transfer printing system is described, for example, in US Pat. No. 4,309,117.
- thermocarbon tapes of the type described above are unsatisfactory in terms of opacity during the writing process.
- the invention was therefore based on the object of proposing a thermal ink ribbon which is distinguished in that it leads to particularly optically dense prints during the printing process.
- the melting ink contains at least one paraffin with a solidification temperature of about 50 to 110 ° C. and at least one ethylene-vinyl acetate wax which is capable of forming a eutectic with the paraffin.
- An essential component of the melting color of the thermocarbon tape according to the invention is therefore a paraffin that melts within the temperature range of approximately 50 to 110 ° C., preferably between approximately 60 to 95 ° C. It is a solid mixture of cleaned. saturated, aliphatic hydrocarbons, which are colorless, odorless and tasteless, dissolve easily in ether and chloroform and do not dissolve in water and 90% alcohol. Micro waxes ceresin, petrolat and Fischer-Tropsch waxes can be given as specific examples of pharaffinic materials which come under the term "paraffin" chosen here.
- Another essential component of the melting ink is another wax which, with the paraffin wax of the type described above, is capable of forming a eutectic when the homogeneous melt cools. This can result in a pure eutectic or a mixture of the eutectic with one of the two pure components. Surprisingly, it has been shown that, taking the above requirement into account, the task is solved to the desired extent.
- An ethylene-vinyl acetate wax is particularly suitable for forming a eutectic with the paraffin wax mentioned, in particular a melting point of about 87 to 92 ° C, a solidification point of about 83 to 97 ° C, an average molecular weight of about 6,500 to 7,000 and a vinyl acetate content of about 9 to 11%.
- a preferred ethylene-vinyl acetate wax is sold, for example, by the company BASF under the trade name "EVA 1 wax".
- the two wax materials forming the eutectic are used in a certain mixing ratio, so that ultimately about 40 to 90% by weight of the paraffinic wax and about 10 to 60% by weight of the finished solid wax mixture -% of the wax material, which forms a eutectic with this paraffin wax.
- the melting ink which essentially consists of the two wax materials described above
- various conventional additives can be incorporated into the melting ink.
- ester waxes and / or modified hydrocarbon resins which promote the flow processes in the thermal printing process, in particular lower the viscosity.
- thermocarbon tape according to the invention pigments are contained in the melting ink. Dyes may optionally also be present. The usual definition that differentiates between pigments and dyes should be considered. Both terms are encompassed by the more general term "colorant".
- colorant The particular effects which can be achieved with the invention, in particular the improved color density of the printed symbol, seem to be due to the fact that the pigments, in particular carbon black, when the melt is applied from the constituents of the subsequent melting ink when the solid mixture is formed, with the formation of a eutectic of a kind Subject to agglomeration. If one observes the thermocarbon tape according to the invention with a microscope, it can be seen that "nests" of pigments are visible in addition to more or less soot-free areas. This phenomenon is due to the special structure of the solid melting color, including a eutectic.
- a melt in a thickness of about 4 micrometers is applied in a melted form at a temperature of about 120 ° C. by means of a flexographic printing unit on a carrier made of a conventional polyester with a thickness of 4 micrometers, in which about 40 parts by weight of ethylene-vinyl acetate Wax of a melting point of about 87 to 92 ° C, a solidification point of about 83 to 97 ° C, an average molecular weight of about 6,500 to 7,000 and a vinyl acetate content of about 9 to 11 wt .-% to about 45 parts by weight of paraffin of a melting point of about 70 ° C and about 20 parts by weight of carbon black.
- a usable thermocarbon ribbon is available which, when used in thermal printers, provides prints of particularly favorable blackness.
- Example 1 was modified so that the following recipe was used to form the melting ink:
Abstract
Description
Die Erfindung betrifft ein Thermofarbband, insbesondere Thermocarbonband, mit einem üblichen Träger und einer auf einer Seite des Trägers ausgebildeten Schicht einer Aufschmelzfarbe, die Pigmente und gegebenenfalls Farbstoffe und weitere Additive enthält.The invention relates to a thermal ribbon, in particular thermocarbon ribbon, with a customary carrier and a layer of a melting ink formed on one side of the carrier, which contains pigments and optionally dyes and other additives.
Thermofarbbänder sind seit längerem bekannt, sie weisen auf einem folienartigen Träger, beispielsweise aus Papier, einem Kunststoff oder dergleichen, eine Aufschmelzfarbe auf, insbesondere in Form einer kunststoff- und/oder wachsgebundenen Farbmittel- oder Rußschicht. Die Aufschmelzfarbe wird bei Thermofarbbändern mittels eines Wärmedruckkopfes geschmolzen und auf ein Aufzeichnungspapier bzw. ein Druckpapier übertragen. Thermische Drucker bzw. Wärmedruckköpfe, die für diesen Vorgang verwendet werden können, sind z. B. aus den DE-ASen 2 062 494 und 2 406 613 sowie der DE-OS 3 224 445 bekannt. Im einzelnen kann dabei z. B. wie folgt vorgegangen werden:Thermal ribbons have long been known, they have a melting color on a film-like carrier, for example made of paper, a plastic or the like, in particular in the form of a plastic and / or wax-bound colorant or carbon black layer. In the case of thermal ribbons, the melting ink is melted by means of a thermal print head and transferred to a recording paper or a printing paper. Thermal printers or thermal print heads that can be used for this process are e.g. B. from DE-ASen 2 062 494 and 2 406 613 and DE-OS 3 224 445 known. In particular, z. B. proceed as follows:
Auf dem Wärmedruckkopf des Druckers wird ein aus beheizten Punkten bestehender und auf ein Papierblatt aufzudruckender Buchstabe ausgebildet. Der Wärmedruckkopf drückt das Thermofarbband auf das zu beschreibende Papier. Der aufgeheizte Buchstabe des Wärmedruckkopfes einer Temperatur von etwa 400 °C führt dazu, daß die Aufschmelzfarbe an der beheizten Stelle aufgeschmolzen und auf das damit in Kontakt stehende Papierblatt übertragen wird. Der benutzte Teil des Thermofarbbandes wird einer Spule zugeführt.A letter consisting of heated dots and to be printed on a paper sheet is formed on the thermal print head of the printer. The thermal print head presses the thermal ribbon onto the paper to be written on. The heated letter of the thermal print head at a temperature of about 400 ° C leads to the melting ink being melted at the heated point and being transferred to the paper sheet in contact with it. The used part of the thermal ribbon is fed to a spool.
Das Thermofarbband kann verschiedene Aufschmelzfarben nebeneinander aufweisen. Mit der Kombination der Grundfarben Blau, Gelb und Rot lassen sich somit farbige Druckbilder herstellen. Gegenüber den üblichen Farbfotografien entfällt ein nachteiliges Entwickeln und Fixieren. Thermodrucker lassen sich mit großer Schreibgeschwindigkeit (ein DIN-A4-Blatt läßt sich in etwa 10 Sekunden bedrucken) und ohne störende Nebengeräusche betreiben.The thermal ribbon can have different melting colors next to each other. With the combination of the basic colors blue, yellow and red, colored print images can be produced. Compared to the usual color photographs, there is no disadvantageous development and fixing. Thermal printers can be operated at high writing speeds (a DIN A4 sheet can be printed in about 10 seconds) and without annoying background noises.
Neben den oben geschilderten Thermofarbbändern gibt es auch solche, bei denen das Wärmesymbol nicht durch Einwirkung eines Wärmedruckkopfes, sondern durch Widerstandsbeheizung eines speziell ausgestalteten folienartigen Trägers aufgeprägt wird. Die Wärmeerzeugung erfolgt durch Fließen eines elektrischen Stromes, dazu muß die Aufschmelzfarbe und/oder deren Träger elektrisch leitende Materialien enthalten. Die Aufschmelzfarbe, die die eigentliche Funktionsschicht beim Druckvorgang darstellt, enthält darüber hinaus die bereits oben geschilderten Materialien. In der Fachwelt spricht man von einem "ETR"-Material ("Electro Thermal Ribbon"). Ein entsprechendes Thermotransfer-Drucksystem wird beispielsweise in der US-PS 4 309 117 beschrieben.In addition to the thermal ribbons described above, there are also those in which the thermal symbol is not impressed by the action of a thermal print head, but by resistance heating of a specially designed film-like carrier. The heat is generated by the flow of an electric current, for this purpose the melting ink and / or its support must contain electrically conductive materials. The melting color, which represents the actual functional layer during the printing process, also contains the materials already described above. In the professional world one speaks of an "ETR" material ("Electro Thermal Ribbon"). A corresponding thermal transfer printing system is described, for example, in US Pat. No. 4,309,117.
Es hat sich gezeigt, daß die Thermocarbonbänder der oben beschriebenen Art bezüglich der Deckkraft beim Schreibvorgang nicht zufriedenstellen.It has been shown that the thermocarbon tapes of the type described above are unsatisfactory in terms of opacity during the writing process.
Der Erfindung lag daher die Aufgabe zugrunde, ein Thermofarbband vorzuschlagen, das sich dadurch auszeichnet, daß es beim Druckvorgang zu besonders optisch dichten Ausdrucken führt.The invention was therefore based on the object of proposing a thermal ink ribbon which is distinguished in that it leads to particularly optically dense prints during the printing process.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Aufschmelzfarbe mindestens ein Paraffin mit einer Erstarrungstemperatur von etwa 50 bis 110 °C und mindestens ein Ethylen-Vinylacetat-Wachs, das mit dem Paraffin zur Bildung eines Eutektikums fähig ist, enthält.According to the invention, this object is achieved in that the melting ink contains at least one paraffin with a solidification temperature of about 50 to 110 ° C. and at least one ethylene-vinyl acetate wax which is capable of forming a eutectic with the paraffin.
Ein wesentlicher Bestandteil der Aufschmelzfarbe des erfindungsgemäßen Thermocarbonbandes ist demzufolge ein Paraffin, das innerhalb des Temperaturbereiches von etwa 50 bis 110 °C, vorzugsweise zwischen etwa 60 bis 95 °C, schmilzt. Es handelt sich hier um ein festes Gemisch gereinigter. gesättigter, aliphatischer Kohlenwasserstoffe, die farb-, geruch- und geschmacklos sind, sich in Äther und Chloroform leicht und in Wasser und in 90%igem Alkohol nicht lösen. Als spezielle Beispiele pharaffinischer Materialien, die unter den hier gewählten Begriff "Paraffin" fallen, können Mikrowachs Ceresin, Petrolat und Fischer-Tropsch-Wachse angegeben werden.An essential component of the melting color of the thermocarbon tape according to the invention is therefore a paraffin that melts within the temperature range of approximately 50 to 110 ° C., preferably between approximately 60 to 95 ° C. It is a solid mixture of cleaned. saturated, aliphatic hydrocarbons, which are colorless, odorless and tasteless, dissolve easily in ether and chloroform and do not dissolve in water and 90% alcohol. Micro waxes ceresin, petrolat and Fischer-Tropsch waxes can be given as specific examples of pharaffinic materials which come under the term "paraffin" chosen here.
Ein anderer wesentlicher Bestandteil der Aufschmelzfarbe ist ein weiteres Wachs, das mit dem Paraffin-Wachs der oben beschriebenen Art beim Abkühlen der homogenen Schmelze zur Ausbildung eines Eutektikums fähig ist. Dabei kann ein reines Eutektikum oder ein Gemisch des Eutektikums mit einer der beiden reinen Komponenten anfallen. Es hat sich überraschenderweise gezeigt, daß unter Beachtung obiger Forderung die gestellte Aufgabe in dem gewünschten Ausmaß gelöst wird.Another essential component of the melting ink is another wax which, with the paraffin wax of the type described above, is capable of forming a eutectic when the homogeneous melt cools. This can result in a pure eutectic or a mixture of the eutectic with one of the two pure components. Surprisingly, it has been shown that, taking the above requirement into account, the task is solved to the desired extent.
Mit besonderem Vorteil ist zur Ausbildung eines Eutektikums mit dem genannten Paraffin-Wachs ein Ethylen-Vinylacetat-Wachs fähig, insbesondere eines Schmelzpunktes von etwa 87 bis 92 °C, eines Erstarrungspunktes von etwa 83 bis 97 °C, einer mittleren Molmasse von etwa 6.500 bis 7.000 und eines Vinylacetat-Gehaltes von etwa 9 bis 11 %. Ein solches bevorzugtes Ethylen-Vinylacetat-Wachs wird beispielsweise von der Firma BASF unter der Handelsbezeichnung "EVA 1-Wachs" vertrieben.An ethylene-vinyl acetate wax is particularly suitable for forming a eutectic with the paraffin wax mentioned, in particular a melting point of about 87 to 92 ° C, a solidification point of about 83 to 97 ° C, an average molecular weight of about 6,500 to 7,000 and a vinyl acetate content of about 9 to 11%. Such a preferred ethylene-vinyl acetate wax is sold, for example, by the company BASF under the trade name "EVA 1 wax".
Es hat sich des weiteren als vorteilhaft erwiesen, wenn die beiden das Eutektikum bildenden Wachsmaterialien in einem bestimmten Mischungsverhältnis eingesetzt werden, so daß letztlich das fertige feste Wachsgemisch zu etwa 40 bis 90 Gew.-% aus dem paraffinischen Wachs und zu etwa 10 bis 60 Gew-% aus dem Wachsmaterial, das mit diesem paraffinischen Wachs ein Eutektikum bildet, besteht.It has also proven to be advantageous if the two wax materials forming the eutectic are used in a certain mixing ratio, so that ultimately about 40 to 90% by weight of the paraffinic wax and about 10 to 60% by weight of the finished solid wax mixture -% of the wax material, which forms a eutectic with this paraffin wax.
Zur Verbesserung der Eigenschaften der Aufschmelzfarbe, die im wesentlichen aus den beiden oben beschriebenen Wachsmaterialien besteht, können der Aufschmelzfarbe verschiedene übliche Additive einverleibt werden. so beispielsweise Esterwachse, und/oder modifizierte Kohlenwasserstoffharze, die die Fließvorgänge beim Thermodruckvorgang begünstigen, so insbesondere die Viskosität senken.To improve the properties of the melting ink, which essentially consists of the two wax materials described above, various conventional additives can be incorporated into the melting ink. for example ester waxes and / or modified hydrocarbon resins, which promote the flow processes in the thermal printing process, in particular lower the viscosity.
Zwingend ist es für das erfingungsgemäße Thermocarbonband, daß in der Aufschmelzfarbe Pigmente enthalten sind. Gegebenenfalls können daneben Farbstoffe vorliegen. Hierbei ist die übliche Definition, die Pigmente und Farbstoffe unterscheidet, zu bedenken. Beide Begriffe werden von dem allgemeineren Ausdruck "Farbmittel" umfaßt. Die mit der Erfindung erzielbaren besonderen Effekte, insbesondere die verbesserte Farbdichte des aufgedruckten Symbols, scheinen darauf zurückzugehen, daß die Pigmente, insbesondere Ruß, bei dem Aufbringen der Schmelze aus den Bestandteilen der späteren Aufschmelzfarbe bei der Ausbildung des festen Gemisches unter Bildung eines Eutektikums einer Art Agglomerierung unterliegen. Beobachtet man nämlich das erfindungsgemäße Thermocarbonband mit einem Mikroskop, dann ist erkennbar, daß neben mehr oder weniger rußfreien Bereichen "Nester" von Pigmenten sichtbar sind. Diese Erscheinung geht auf die besondere Struktur der festen Aufschmelzfarbe unter Einbeziehung eines Eutektikums zurück.It is imperative for the thermocarbon tape according to the invention that pigments are contained in the melting ink. Dyes may optionally also be present. The usual definition that differentiates between pigments and dyes should be considered. Both terms are encompassed by the more general term "colorant". The particular effects which can be achieved with the invention, in particular the improved color density of the printed symbol, seem to be due to the fact that the pigments, in particular carbon black, when the melt is applied from the constituents of the subsequent melting ink when the solid mixture is formed, with the formation of a eutectic of a kind Subject to agglomeration. If one observes the thermocarbon tape according to the invention with a microscope, it can be seen that "nests" of pigments are visible in addition to more or less soot-free areas. This phenomenon is due to the special structure of the solid melting color, including a eutectic.
Die Erfindung soll anhand zweier Beispiele noch näher erläutert werden, wobei darin insbesondere die Rezeptur der Aufschmelzfarbe in den Vordergrund gestellt wird.The invention is to be explained in more detail with the aid of two examples, the recipe for the melting color being particularly emphasized.
Auf einem Träger aus einem üblichen Polyester einer Stärke von 4 Mikrometern wird in geschmolzener Form bei einer Temperatur von etwa 120 °C mittels eines Flexodruckwerks eine Schmelze in einer Stärke von etwa 4 Mikrometern aufgetragen, bei der etwa 40 Gew.-Teile Ethylen-Vinylacetat-Wachs eines Schmelzpunktes von etwa 87 bis 92 °C, eines Erstarrungspunktes von etwa 83 bis 97 °C, einer mittleren Molmasse von etwa 6.500 bis 7.000 und eines Vinylacetat-Gehaltes von etwa 9 bis 11 Gew.-% auf etwa 45 Gewichtsteile Paraffin eines Schmelzpunktes von etwa 70 °C und etwa 20 Gewichtsteile Ruß entfallen. Nach Erstarren bei Raumtemperatur liegt ein einsetzbares Thermocarbonband vor, das beim Einsatz in Thermodruckern Ausdrucke besonders günstiger Schwärze liefert.A melt in a thickness of about 4 micrometers is applied in a melted form at a temperature of about 120 ° C. by means of a flexographic printing unit on a carrier made of a conventional polyester with a thickness of 4 micrometers, in which about 40 parts by weight of ethylene-vinyl acetate Wax of a melting point of about 87 to 92 ° C, a solidification point of about 83 to 97 ° C, an average molecular weight of about 6,500 to 7,000 and a vinyl acetate content of about 9 to 11 wt .-% to about 45 parts by weight of paraffin of a melting point of about 70 ° C and about 20 parts by weight of carbon black. After solidification at room temperature, a usable thermocarbon ribbon is available which, when used in thermal printers, provides prints of particularly favorable blackness.
Das Beispiel 1 wurde dahingehend abgeändert, daß zur Ausbildung der Aufschmelzfarbe folgende Rezeptur herangezogen wurde:Example 1 was modified so that the following recipe was used to form the melting ink:
30 Gewichtsteile Ethylen-Vinylacetat-Wachs, etwa 15 Gewichtsteile Ruß, etwa 45 Gewichtsteile Paraffin-Wachs und etwa 5 Gewichtsteile Ester-Wachs zur Verbesserung des Fließverhaltens beim Thermodruckvorgang.30 parts by weight of ethylene-vinyl acetate wax, about 15 parts by weight of carbon black, about 45 parts by weight of paraffin wax and about 5 parts by weight of ester wax to improve the flow behavior in the thermal printing process.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3825437 | 1988-07-27 | ||
| DE3825437A DE3825437C1 (en) | 1988-07-27 | 1988-07-27 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0352519A2 true EP0352519A2 (en) | 1990-01-31 |
| EP0352519A3 EP0352519A3 (en) | 1990-09-05 |
| EP0352519B1 EP0352519B1 (en) | 1993-04-14 |
Family
ID=6359625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89112329A Expired - Lifetime EP0352519B1 (en) | 1988-07-27 | 1989-07-06 | Thermal dye ribbon |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5118211A (en) |
| EP (1) | EP0352519B1 (en) |
| JP (1) | JPH0775901B2 (en) |
| DE (2) | DE3825437C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0395014A1 (en) * | 1989-04-27 | 1990-10-31 | Canon Kabushiki Kaisha | Thermal transfer material and thermal transfer recording method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69030453T2 (en) * | 1989-02-02 | 1997-07-31 | Canon Kk | Thermal transfer material and thermal transfer recording method |
| DE19548033A1 (en) * | 1995-12-21 | 1997-07-03 | Pelikan Produktions Ag | Thermal transfer ribbon |
| US6358597B1 (en) | 1997-08-07 | 2002-03-19 | Pelikan Produktions Ag | Thermo-transfer ribbon |
| DE19820769B4 (en) * | 1998-05-08 | 2004-02-05 | Pelikan Produktions Ag | Thermal transfer ribbon |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60120093A (en) * | 1983-12-02 | 1985-06-27 | Konishiroku Photo Ind Co Ltd | Thermal transfer recording medium |
| EP0207752A2 (en) * | 1985-07-01 | 1987-01-07 | General Company Limited | Heat sensitive transferring recording medium |
| JPS6227179A (en) * | 1985-07-29 | 1987-02-05 | Oji Paper Co Ltd | Ink sheet for thermal transfer printer |
| GB2178553A (en) * | 1985-07-29 | 1987-02-11 | Canon Kk | Thermal transfer material |
| DE3631781A1 (en) * | 1985-09-18 | 1987-03-26 | Konishiroku Photo Ind | HEAT SENSITIVE TRANSFER RECORDING MEDIUM |
| DE3635141C1 (en) * | 1986-10-15 | 1988-03-03 | Pelikan Ag | Thermocarbon tape with a plastic-bound melting ink and a process for producing this tape |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2062494C3 (en) * | 1970-12-18 | 1975-04-30 | Triumph Werke Nuernberg Ag, 8500 Nuernberg | Thermal print head |
| JPS49106731A (en) * | 1973-02-12 | 1974-10-09 | ||
| US4309117A (en) * | 1979-12-26 | 1982-01-05 | International Business Machines Corporation | Ribbon configuration for resistive ribbon thermal transfer printing |
| JPS585280A (en) * | 1981-07-03 | 1983-01-12 | Canon Inc | Thermal head printer |
| DE3315249A1 (en) * | 1983-04-27 | 1984-10-31 | Renker GmbH & Co KG, 5160 Düren | HEAT SENSITIVE RECORDING / TRANSFER MATERIAL |
| JPS61228993A (en) * | 1985-04-03 | 1986-10-13 | Fuji Kagakushi Kogyo Co Ltd | Thermal fusion transfer recording medium |
| JPS6253890A (en) * | 1985-04-17 | 1987-03-09 | Nitto Electric Ind Co Ltd | Thermal transfer recording medium |
| ATE82551T1 (en) * | 1985-08-12 | 1992-12-15 | Gen Co Ltd | HEAT SENSITIVE TRANSMISSION RECORDING MATERIAL. |
| JPS6292889A (en) * | 1985-10-18 | 1987-04-28 | Victor Co Of Japan Ltd | Transfer paper |
| JPS633995A (en) * | 1986-06-24 | 1988-01-08 | Konica Corp | Thermal transfer recording medium |
| JPH0767832B2 (en) * | 1986-12-26 | 1995-07-26 | キヤノン株式会社 | Thermal transfer recording method |
| JPH0767833B2 (en) * | 1987-02-03 | 1995-07-26 | コニカ株式会社 | Thermal transfer recording medium |
| DE3728075A1 (en) * | 1987-08-22 | 1989-03-02 | Pelikan Ag | THERMOFIBB BAND FOR THERMAL TRANSFER PRESSURE AND ITS MANUFACTURE |
| US4988563A (en) * | 1988-05-10 | 1991-01-29 | Wehr Mary A | Thermal transfer ribbon with protective layer |
| DE3822163A1 (en) * | 1988-06-30 | 1990-01-04 | Pelikan Ag | THERMAL RIBBON AND A METHOD FOR THE PRODUCTION THEREOF |
-
1988
- 1988-07-27 DE DE3825437A patent/DE3825437C1/de not_active Expired
-
1989
- 1989-07-06 EP EP89112329A patent/EP0352519B1/en not_active Expired - Lifetime
- 1989-07-06 DE DE8989112329T patent/DE58904050D1/en not_active Expired - Fee Related
- 1989-07-26 US US07/553,793 patent/US5118211A/en not_active Expired - Lifetime
- 1989-07-27 JP JP1192785A patent/JPH0775901B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60120093A (en) * | 1983-12-02 | 1985-06-27 | Konishiroku Photo Ind Co Ltd | Thermal transfer recording medium |
| EP0207752A2 (en) * | 1985-07-01 | 1987-01-07 | General Company Limited | Heat sensitive transferring recording medium |
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| DE3631781A1 (en) * | 1985-09-18 | 1987-03-26 | Konishiroku Photo Ind | HEAT SENSITIVE TRANSFER RECORDING MEDIUM |
| DE3635141C1 (en) * | 1986-10-15 | 1988-03-03 | Pelikan Ag | Thermocarbon tape with a plastic-bound melting ink and a process for producing this tape |
Non-Patent Citations (2)
| Title |
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| PATENT ABSTRACTS OF JAPAN vol. 11, no. 210 (M-604)(2657) 08 Juli 1987, & JP-A-62 27179 (OJI PAPER CO LTD) 05 Februar 1987, * |
| PATENT ABSTRACTS OF JAPAN vol. 9, no. 275 (M-426)(1998) 02 November 1985, & JP-A-60 120093 (KONISHIROKU SHASHIN KOGYO K.K.) 27 Juni 1985, * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0395014A1 (en) * | 1989-04-27 | 1990-10-31 | Canon Kabushiki Kaisha | Thermal transfer material and thermal transfer recording method |
| US5268052A (en) * | 1989-04-27 | 1993-12-07 | Canon Kabushiki Kaisha | Thermal transfer material and thermal transfer recording method |
| US5389429A (en) * | 1989-04-27 | 1995-02-14 | Canon Kabushiki Kaisha | Thermal transfer material and thermal transfer recording method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3825437C1 (en) | 1989-11-16 |
| JPH0274376A (en) | 1990-03-14 |
| JPH0775901B2 (en) | 1995-08-16 |
| US5118211A (en) | 1992-06-02 |
| DE58904050D1 (en) | 1993-05-19 |
| EP0352519A3 (en) | 1990-09-05 |
| EP0352519B1 (en) | 1993-04-14 |
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