EP0335830B1 - Process and installation for producing a multiple form for the reproduction of line engraved intaglio printing plates - Google Patents
Process and installation for producing a multiple form for the reproduction of line engraved intaglio printing plates Download PDFInfo
- Publication number
- EP0335830B1 EP0335830B1 EP89810144A EP89810144A EP0335830B1 EP 0335830 B1 EP0335830 B1 EP 0335830B1 EP 89810144 A EP89810144 A EP 89810144A EP 89810144 A EP89810144 A EP 89810144A EP 0335830 B1 EP0335830 B1 EP 0335830B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- electrode
- plastic plate
- plastic
- original
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C3/00—Reproduction or duplicating of printing formes
- B41C3/06—Reproduction or duplicating of printing formes to produce printing blocks from plastics
Definitions
- the invention relates to a method for producing a multiple mold for the reproduction of intaglio printing plates according to the preamble of claim 1 and to an installation for carrying out the method.
- a plastic sheet made of thermoplastic material is prepared, the size of which corresponds to that of the original sheet and has a thickness of approximately 0.5 to 0.7 mm; this plastic plate is placed in a press, namely between a flat support, which is provided with a heating device, and the engraved surface of the original plate. The plastic plate is then heated to a temperature of approximately 150 ° C. Then the original plate is stamped with a press of about 100 to 200 kg / cm2 pressed against the plastic plate, which after this operation bears the complementary relief of the image or pattern engraved on the original plate. In this way, a positive mold or patrix consisting of plastic is obtained. After the pressure has been switched off, the original plate is removed and the patrix is cooled, which may be natural cooling or cooling accelerated with suitable coolants.
- each patrix is meticulously cut in order to obtain a patrix with exactly predetermined dimensions. Then all the male parts are arranged in rows and columns next to each other on a level surface and provisionally glued there. The next step is to insert this assembled and provisionally glued arrangement of all patrices into a plastic welding machine, in which all joints between adjacent patrices are welded, so that a multiple patrix is obtained in the form of a plastic plate that has the desired number of impressions. This multiple patrix must now be carefully polished and treated in such a way that the excess material is removed from the weld seams and a completely smooth and steady surface is obtained between the individual impressions.
- the manufacturing method described above is complicated and lengthy and requires precision working special machines.
- the composition of the multiple form from single patrices must be carried out with great care and accuracy, so that the exact register is guaranteed later during the printing process in the intaglio printing machine.
- the plastic plate is first covered with a silver layer. Then a copper layer is applied to this silver-plated surface by electrolysis. By now removing the plastic plate from the copper layer, one obtains a copper plate in the form of a multiple copper matrix with deepened impressions. The surface of this die between the impressions is processed in such a way that it is completely smooth and continuous. Starting from this multiple Kufpfer matrix, a nickel plate in the form of a multiple nickel matrix and then a nickel plate in the form of a multiple nickel matrix is produced, which forms the actual intaglio printing plate, which is later mounted on the plate cylinder of the printing press.
- This printing plate is subjected to a finishing process such that on the one hand the surface between the impressions is smooth and steady and on the other hand the back of the printing plate, which is in contact with the Plate cylinder is also completely smooth and steady. In order to increase the resistance of the printing surface to abrasion, this printing plate surface is also given a chrome layer.
- the invention has for its object to improve the manufacture of a multiple mold of the type described, which serves as the basis for the reproduction of a gravure printing plate, preferably consisting of nickel, and in particular to rationalize and simplify the method of exact positioning of all the prints on the multiple mold, whereby the manufacturing effort is reduced and the quality of the multiple mold is increased.
- a multiple mold produced can be either a multiple male or a multiple female.
- the hot pressing of the plastic plate is preferably carried out under negative pressure.
- the advantages of the invention consist essentially in the fact that the plastic plate forming the multiple mold can be produced directly in successive steps, without it having to be assembled from separately produced molds, each with only one impression, whereby the precise trimming of individual molds, the exact, time-consuming Join these shapes together by welding the parting lines and removing excess welding material is eliminated.
- the high-frequency heating of the plastic plate allows the reduction of the contact pressure required for hot pressing this plastic plate, especially when working under negative pressure, as a result of which particularly close contact between the original plate and the plastic plate can be achieved in a dust-free environment.
- the installation has a frame 1 which carries all parts of the device.
- a first frame 2 designed as a carriage is mounted on the frame 1 so as to be longitudinally displaceable in the horizontal direction in the direction of arrow F2.
- a second frame, also designed as a slide, in the form of a support frame 3 is slidably mounted in the direction of arrow F3, that is to say perpendicularly to the direction of displacement of the first frame 2.
- the support frame 3 serves to hold a plastic plate 4, which is held with the aid of fastening elements 3a and from which the later multiple shape is formed with a large number of identical impressions.
- a support 5 shown in FIG. 2 is fixedly attached to the frame 1 below the displacement plane.
- an insulating plate 6 which, as shown in FIG. 2, carries a plate-shaped electrode 7 which is used for high-frequency heating of the plastic plate 4.
- a cooling device 8 is arranged between the electrode 7 and the insulating plate 6, in which a cooling liquid can preferably circulate and for this purpose is provided with two lines 8a and 8b for the entry and exit of this liquid.
- a plate holding device which has an upper fastening plate 9 which is firmly connected to the frame 1, for example with the aid of four inclined supports 10.
- a double-acting cylinder 11 is installed on this fastening plate 9, the piston rod 12 of which Fastening plate 9 passes through and carries at its lower end a horizontal plate 13 which is provided with a guide device in the form of two guide rods 14 and 15 which run parallel to the piston rod 12 of the cylinder 11 and also cross the upper fastening plate 9.
- the actual plate holder 18 is suspended from this horizontal plate 13 with the aid of fastening elements 16 in the form of four threaded bolts 17 provided with nuts 17, which plate holder bears on its underside the original plate 19 with the engraved image or pattern to be reproduced and its distance from the horizontal plate 13 Help of the fasteners 16 can be adjusted.
- the plate holder 18 is preferably provided with a device for heating and cooling by means of a hot or cold liquid circulating inside it provided that can enter through one of the two lines 18a and 18b as needed and can exit through the other line.
- a chamber 20 is provided below the plate holder 18, in which a negative pressure can be generated.
- This chamber 20 is formed by a bellows, the upper end of which is attached to the edge of the plate holder 18 and the lower end of which is in close contact with the plastic plate 4.
- a high-frequency device 22 to which the electrode 7 is connected, and the various operating elements are arranged, which, for example, shift the frames 2 and 3 designed as slides, actuate the cylinder 11 with its piston and switch on and off allow the radio frequency device 11.
- the installation described is of course only one exemplary embodiment and allows numerous structural variants, in particular, for example, with regard to the relative displaceability between plastic plate 4 on the one hand and electrode 7 and original plate 19 on the other.
- the arrangement can also be such that the entire plate holding device together with the cylinder 11 and the original plate 19 and the electrode 7 in one of the horizontal directions F2 or F3 and the plastic plate 4 can then only be moved in the other direction F3 or F2, or that the entire plate holding device with the cylinder 11 and the original plate 19 and the electrode 7 can be moved in both directions while the plastic plate 4 is fixed on the frame 1 .
- a layer 24 (FIG. 3) lying on the electrode, preferably made of glass fibers, can be provided between the electrode 7 and the plastic plate 4 in order to ensure that this electrode 7 fits well during the pressing.
- an original plate 19 made of metal, which has the image or pattern to be reproduced in the form of engraved lines and possibly punctiform areas of different depth, but can also consist of an original relief plate, which has the pattern or image to be reproduced in the form of corresponding increases.
- This original plate 19 is attached to the underside of the plate holder 18.
- a plastic plate 4 is prepared from a material that can be deformed by hot pressing and has practically the same dimensions as the intaglio printing plate to be produced.
- This plastic plate 4 can in particular consist of a PVC known under the trade name Cobex.
- This plastic plate 4 is, when the plate holder 18 is raised, arranged in the support frame 3 designed as a slide and held by adjustable fastening members 3a in the form of small pliers which uniformly clamp the plastic plate 4 within the frame 3. With the help of the two displaceable frames 2 and 3, the plastic plate 4 is guided into a first adjusted position, in which the plate area which is to receive the first impression 23 lies exactly below the raised original plate 19 above the electrode 7, which is approximately the same same dimensions as the original plate 19.
- the plate holder 18 is first lowered using the piston of the cylinder 11 such that the lower end of the bellows forming the chamber 20 rests on the plastic plate 4.
- a vacuum of approximately 80% is then generated within the chamber 20, and the engraved original plate 19 is then lowered onto the plastic plate 4.
- a pressure in the order of magnitude of, for example, 20 kg / cm 2 is exerted on the plastic plate lying against the electrode 7 with the aid of the cylinder 11, which is a pressure which is 5 to 10 times lower than in previously known methods .
- high-frequency voltage is applied to the electrode 7 in order to heat the plastic plate 4 by high-frequency. Then the supply of the electrode 7 is switched off and the plastic plate 4 is cooled for 3 to 4 minutes by passing a cooling liquid through the device 8; likewise, the original plate 19 is cooled by passing a cooling liquid through the plate holder 18.
- the original plate 19 is removed from the plastic plate 4 by lifting.
- the plastic plate 4 is then shifted to the second adjusted position corresponding to the second impression to be made, either in the direction of F2 or in the direction of F3, and then the sequence of the operations described above is carried out again to produce the second impression.
- This sequence of steps is successively continued until the plastic plate 4 has been provided with as many prints arranged in rows and columns as is desired, that is to say until the number and arrangement of the prints correspond to those of the intaglio printing plate to be produced.
- a multiple shape in the form of a plastic plate 4 with a corresponding number of impressions is thus obtained in a simple manner. Since an engraved original plate was assumed in the example under consideration, this multiple form represents a multiple patrix with raised impressions. On the other hand, if one starts from an original plate with raised reliefs, then a multiple matrix in the form of a plastic plate is obtained using the same method described above whose impressions consist of depressions.
- the original plate 19 Before the original plate 19 is brought into contact with the plastic plate 4, it may be expedient to preheat either only the plastic plate 4 with the aid of high-frequency heating or both this plastic plate 4 and the original plate 19, with hot water in the last case for a few minutes the inside of the plate holder 18 is passed before the original plate 19 is lowered onto the plastic plate 4.
- This preheating makes it possible to improve the quality of the impression, because it avoids problems associated with the different dimensions of the parts in contact with one another; such expansions can possibly affect the quality of the impression.
- the installation can also be such that the plate holding device is fixed and the electrodes 7 are raised with their support in order to press the plastic plate 4 against the original plate 19.
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer Mehrfachform für die Reproduktion von Stichtiefdruckplatten gemäss dem Oberbegriff des Patentanspruchs 1 und auf eine Installation zur Durchführung des Verfahrens.The invention relates to a method for producing a multiple mold for the reproduction of intaglio printing plates according to the preamble of
Es ist bekannt, bei der Herstellung von Stichtiefdruckplatten von einer metallischen Originalplatte auszugehen, auf deren Oberfläche das zu reproduzierende Bild oder Muster in Form von Linien oder punktförmigen Bereichen mit grosser Sorgfalt eingraviert ist. Da die auf dem Plattenzylinder angeordnete Stichtiefdruckplatte fast immer, insbesondere bei der Herstellung von Banknoten, eine grössere Anzahl von reihen- und spaltenweise angeordneten, gleichen Abdrücken aufweist, welche das zu reproduzierende Bild oder Muster darstellen, muss der Abdruck der gravierten Originalplatte vervielfältigt und auf die Stichdruckplatte übertragen werden, die im allgemeinen aus Nickel besteht. Um diese Vervielfachung und Uebertragung der Abdrücke auszuführen, geht man bisher in folgender Weise vor :It is known to start with the production of intaglio printing plates from a metallic original plate, on the surface of which the image or pattern to be reproduced is engraved with great care in the form of lines or point-like areas. Since the intaglio printing plate arranged on the plate cylinder almost always has a large number of identical prints arranged in rows and columns, particularly in the production of banknotes, which represent the image or pattern to be reproduced, the print of the engraved original plate must be reproduced and printed on Engraving printing plate are transmitted, which generally consists of nickel. In order to carry out this multiplication and transfer of the impressions, one has hitherto proceeded as follows:
Man bereitet eine Kunststoffplatte aus thermoplastischem Material vor, deren Abmessung der der Orginalplatte entspricht und eine Dicke von ungefähr 0,5 bis 0,7 mm hat; diese Kunststoffplatte wird in eine Presse gelegt, und zwar zwischen eine ebene Auflage, welche mit einer Heizeinrichtung versehen ist, und die gravierte Flache der Originalplatte. Die Kunststoffplatte wird dann bis auf eine Temperatur von ungefähr 150°C erhitzt. Danach wird die Originalplatte durch den Stempel der Presse mit einem Druck von ungefähr 100 bis 200 kg/cm² gegen die Kunststoffplatte gedrückt, welche nach dieser Operation das komplementäre Relief des auf der Originalplatte gravierten Bildes oder Musters trägt. Man erhält auf diese Weise eine aus Kunststoff bestehende positive Form oder Patrize. Nach Abstellung des Drucks entfernt man die Originalplatte und wartet die Kühlung der Patrize ab, wobei es sich um eine natürliche Kühlung oder eine mit geeigneten Kühlmitteln beschleunigte Kühlung handeln kann.A plastic sheet made of thermoplastic material is prepared, the size of which corresponds to that of the original sheet and has a thickness of approximately 0.5 to 0.7 mm; this plastic plate is placed in a press, namely between a flat support, which is provided with a heating device, and the engraved surface of the original plate. The plastic plate is then heated to a temperature of approximately 150 ° C. Then the original plate is stamped with a press of about 100 to 200 kg / cm² pressed against the plastic plate, which after this operation bears the complementary relief of the image or pattern engraved on the original plate. In this way, a positive mold or patrix consisting of plastic is obtained. After the pressure has been switched off, the original plate is removed and the patrix is cooled, which may be natural cooling or cooling accelerated with suitable coolants.
Ein derartiges Pressverfahren ist beispielsweise aus der US-A-3597293 zu entnehmen.Such a pressing process can be found, for example, in US-A-3597293.
Die vorstehend beschriebenen Schritte werden so oft wiederholt, bis die erhaltene Anzahl der mit dem zu reproduzierenden Abdruck versehenen Patrizen der Zahl der Abdrücke entspricht, welche die herzustellende Stichtiefdruckplatte aufweisen soll. Diese aufeinanderfolgende Herstellung der Patrizen stellt eine langwierige Arbeit dar.The steps described above are repeated until the number of patrices obtained with the impression to be reproduced corresponds to the number of impressions which the intaglio printing plate to be produced should have. This sequential production of the patrices is a lengthy task.
Um nunmehr eine mit Mehrfachabdrücken versehene Form, also eine Mehrfachpatrize, zu erhalten, deren Abmessung der herzustellenden Stichtiefdruckplatte entspricht, geht man folgendermassen vor :In order to obtain a form with multiple impressions, i.e. a multiple patrix, the dimensions of which correspond to the intaglio printing plate to be produced, proceed as follows:
Zunächst werden die Rinder jeder einzelnen Patrize peinlich genau geschnitten, um eine Patrize mit exakt vorbestimmten Abmessungen zu erhalten. Dann werden alle Patrizen in der genauen gewünschten Anordnung reihen- und spaltenweise aneinanderliegend auf einer ebenen Auflage angeordnet und dort provisorisch festgeklebt. Der nächste Schritt besteht darin, diese zusammengesetzte und provisorisch geklebte Anordnung aller Patrizen in eine Kunststoff-Schweissmaschine einzuführen, in welcher alle Trennfugen zwischen benachbarten Patrizen verschweisst werden, so dass eine Mehrfachpatrize in Form einer Kunststoffplatte erhalten wird, welche die gewünschte Anzahl von Abdrücken aufweist. Diese Mehrfachpatrize muss nunmehr sorgfältig poliert und derart behandelt werden, dass das überschüssige Material an den Schweissnähten entfernt und zwischen den einzelnen Abdrücken eine völlig glatte und stetige Oberfläche erhalten wird.First, the cattle of each patrix are meticulously cut in order to obtain a patrix with exactly predetermined dimensions. Then all the male parts are arranged in rows and columns next to each other on a level surface and provisionally glued there. The next step is to insert this assembled and provisionally glued arrangement of all patrices into a plastic welding machine, in which all joints between adjacent patrices are welded, so that a multiple patrix is obtained in the form of a plastic plate that has the desired number of impressions. This multiple patrix must now be carefully polished and treated in such a way that the excess material is removed from the weld seams and a completely smooth and steady surface is obtained between the individual impressions.
Die vorstehend beschriebene Herstellungsweise ist kompliziert und langwierig und erfordert präzise arbeitende Spezialmaschinen. Die Zusammensetzung der Mehrfachform aus Einzel-Patrizen muss mit sehr grosser Sorgfalt und Genauigkeit durchgeführt werden, damit später beim Druckvorgang in der Stichtiefdruckmaschine das exakte Register gewährleistet ist.The manufacturing method described above is complicated and lengthy and requires precision working special machines. The composition of the multiple form from single patrices must be carried out with great care and accuracy, so that the exact register is guaranteed later during the printing process in the intaglio printing machine.
Nachstehend wird der Vollständigkeit halber noch kurz das bekannte Verfahren erläutert, nach welchem im allgemeinen die Stichtiefdruckplatte unter Verwendung der erwähnten, eine Mehrfachpatrize darstellenden Kunststoffplatte hergestellt wird :For the sake of completeness, the known method is explained briefly below, according to which the intaglio printing plate is generally produced using the plastic plate mentioned, which represents a multiple patrix:
Die Kunststoffplatte wird zunächst mit einer Silberschicht versehen. Dann wird auf diese versilberte Oberfläche eine Kupferschicht durch Elektrolyse aufgebracht. Indem man nunmehr die Kunststoffplatte von der Kupferschicht entfernt, erhält man eine Kupferplatte in Form einer Mehrfach-Kupfermatrize mit vertieften Abdrücken. Die Oberfläche dieser Matrize zwischen den Abdrücken wird derart bearbeitet, dass sie vollständig glatt und stetig ist. Ausgehend von dieser Mehrfach-Kufpfermatrize wird eine Nickelplatte in Form einer Mehrfach-Nickelpatrize und anschliessend eine Nickelplatte in Form einer Mehrfach-Nickelmatrize hergestellt, welche die eigentliche Stichtiefdruckplatte bildet, die später auf dem Plattenzylinder der Druckmaschine montiert wird. Diese Druckplatte wird einer Endbearbeitung unterzogen, derart, dass einerseits die Oberfläche zwischen den Abdrücken glatt und stetig ist und andererseits die Rückseite der Druckplatte, die sich im Kontakt mit dem Plattenzylinder befindet, gleichfalls vollkommen glatt und stetig ist. Um den Widerstand der druckenden Oberfläche gegen Abrieb zu erhöhen, erhält diese Druckplattenoberfläche noch eine Chromschicht.The plastic plate is first covered with a silver layer. Then a copper layer is applied to this silver-plated surface by electrolysis. By now removing the plastic plate from the copper layer, one obtains a copper plate in the form of a multiple copper matrix with deepened impressions. The surface of this die between the impressions is processed in such a way that it is completely smooth and continuous. Starting from this multiple Kufpfer matrix, a nickel plate in the form of a multiple nickel matrix and then a nickel plate in the form of a multiple nickel matrix is produced, which forms the actual intaglio printing plate, which is later mounted on the plate cylinder of the printing press. This printing plate is subjected to a finishing process such that on the one hand the surface between the impressions is smooth and steady and on the other hand the back of the printing plate, which is in contact with the Plate cylinder is also completely smooth and steady. In order to increase the resistance of the printing surface to abrasion, this printing plate surface is also given a chrome layer.
Der Erfindung liegt die Aufgabe zugrunde, die Herstellung einer Mehrfachform der beschriebenen Art, die als Grundlage für die Reproduktion einer vorzugsweise aus Nickel bestehenden Stichtiefdruckplatte dient, zu verbessern und insbesondere die Methode der exakten Positionierung aller Abdrücke auf der Mehrfachform zu rationalisieren und zu vereinfachen, wodurch der Herstellungsaufwand verringert und die Qualität der Mehrfachform erhöht wird. Ausserdem soll eine zweckmässige Installation für diese Herstellung geschaffen werden. Dabei kann die hergestellte Mehrfachform entweder eine Mehrfachpatrize oder eine Mehrfachmatrize sein.The invention has for its object to improve the manufacture of a multiple mold of the type described, which serves as the basis for the reproduction of a gravure printing plate, preferably consisting of nickel, and in particular to rationalize and simplify the method of exact positioning of all the prints on the multiple mold, whereby the manufacturing effort is reduced and the quality of the multiple mold is increased. In addition, an appropriate installation for this manufacture is to be created. The multiple mold produced can be either a multiple male or a multiple female.
Diese Aufgabe wird erfindungsgemäss durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale gelöst. Die erfindungsgemässe Installation ist durch die im Patentanspruch 3 angegebenen Merkmale gekennzeichnet.According to the invention, this object is achieved by the features specified in the characterizing part of
Vorzugsweise wird das Warmpressen der Kunststoffplatte bei Unterdruck durchgeführt.The hot pressing of the plastic plate is preferably carried out under negative pressure.
Vorteilhafte Ausgestaltungen der Installation nach der Erfindung ergeben sich aus den Ansprüchen 4 bis 10.Advantageous embodiments of the installation according to the invention result from
Die Vorteile der Erfindung bestehen im wesentlichen darin, dass die die Mehrfachform bildende Kunststoffplatte direkt in aufeinanderfolgenden Schritten herstellbar ist, ohne dass sie aus getrennt hergestellten, jeweils nur einen Abdruck aufweisenden Formen zusammengesetzt werden müsste, wodurch das genaue Beschneiden von Einzelformen, das exakte, zeitraubende Aneinanderfügen dieser Formen durch Verschweissen der Trennfugen sowie das Entfernen von überschüssigem Schweissmaterial entfällt. Ausserdem erlaubt die Hochfrequenzerwärmung der Kunststoffplatte die Verringerung des zum Warmpressen dieser Kunststoffplatte erforderlichen Anpressdrucks, insbesondere dann, wenn man bei Unterdruck arbeitet, wodurch ein besonders enger Kontakt zwischen Originalplatte und Kunststoffplatte in einer staubfreien Umgebung erzielbar ist.The advantages of the invention consist essentially in the fact that the plastic plate forming the multiple mold can be produced directly in successive steps, without it having to be assembled from separately produced molds, each with only one impression, whereby the precise trimming of individual molds, the exact, time-consuming Join these shapes together by welding the parting lines and removing excess welding material is eliminated. In addition, the high-frequency heating of the plastic plate allows the reduction of the contact pressure required for hot pressing this plastic plate, especially when working under negative pressure, as a result of which particularly close contact between the original plate and the plastic plate can be achieved in a dust-free environment.
Die Erfindung wird anhand der Zeichnungen an einem Ausführungsbeispiel näher erläutert. Es zeigen:
Figur 1 eine perspektivische Ansicht einer Installation zur Herstellung einer Mehrfachform und zur Durchführung des erfindungsgemässen Verfahrens,Figur 2 eine teilweise und vergrösserte Seitenansicht der Installation, undFigur 3 eine teilweise Seitenansicht einer etwas abgewandelten Ausführungsform der Installation.
- FIG. 1 shows a perspective view of an installation for producing a multiple mold and for carrying out the method according to the invention,
- Figure 2 is a partial and enlarged side view of the installation, and
- Figure 3 is a partial side view of a slightly modified embodiment of the installation.
Nachstehend wird zunächst die Installation zur Herstellung einer Mehrfachform und danach das Herstellungsverfahren selber beschrieben.The installation for producing a multiple mold and then the manufacturing process itself are described below.
Die Installation weist nach Figur 1 ein Gestell 1 auf, das alle Vorrichtungsteile trägt. Ein erster als Schlitten ausgebildeter Rahmen 2 ist in horizontaler Richtung im Sinne des Pfeils F2 längsverschiebbar auf dem Gestell 1 montiert. Im Innern dieses Rahmens 2 ist ein zweiter, ebenfalls als Schlitten ausgebildeter Rahmen in Form eines Tragrahmens 3 im Sinne des Pfeils F3, also senkrecht zur Verschiebungsrichtung des ersten Rahmens 2, verschiebbar gelagert. Der Tragrahmen 3 dient zur Aufnahme einer Kunststoffplatte 4, welche mit Hilfe von Befestigungsorganen 3a gehalten und aus welcher die spätere Mehrfachform mit einer Vielzahl gleicher Abdrücke gebildet wird.According to FIG. 1, the installation has a
Im mittleren Bereich des Gestells 1, auf welchem sich der Rahmen 2 verschiebt, ist unterhalb der Verschiebungsebene eine in Figur 2 gezeigte Auflage 5 fest am Gestell 1 angebracht. Auf dieser Auflage 5 liegt eine isolierende Platte 6, welche, wie in Figur 2 dargestellt, eine plattenförmige Elektrode 7 trägt, die zur Hochfrequenzerwärmung der Kunststoffplatte 4 dient. Zwischen der Elektrode 7 und der isolierenden Platte 6 ist eine Kühlvorrichtung 8 angeordnet, in welcher vorzugsweise eine Kühlflüssigkeit zirkulieren kann und die zu diesem Zweck mit zwei Leitungen 8a und 8b zum Eintritt und zum Austritt dieser Flüssigkeit versehen ist. Vertikal oberhalb der Elektrode 7 befindet sich eine Plattenhaltevorrichtung, welche eine obere Befestigungsplatte 9 aufweist, die fest mit dem Gestell 1 verbunden ist, beispielsweise mit Hilfe von vier schrägen Stützen 10. Auf dieser Befestigungsplatte 9 ist ein doppelwirkender Zylinder 11 installiert, dessen Kolbenstange 12 die Befestigungsplatte 9 durchsetzt und an seinem unteren Ende eine horizontale Platte 13 trägt, welche mit einer Führungseinrichtung in Form zweier Führungsstangen 14 und 15 versehen ist, die parallel zur Kolbenstange 12 des Zylinders 11 verlaufen und ebenfalls die obere Befestigungsplatte 9 durchqueren. An dieser horizontalen Platte 13 ist mit Hilfe von Befestigungsorganen 16 in Form von vier mit Muttern 17 versehenen Gewindebolzen der eigentliche Plattenhalter 18 aufgehängt, welcher an seiner Unterseite die Originalplatte 19 mit dem zu vervielfältigenden gravierten Bild oder Muster trägt und dessen Abstand zur horizontalen Platte 13 mit Hilfe der Befestigungsorgane 16 eingestellt werden kann. Der Plattenhalter 18 ist vorzugsweise mit einer Einrichtung zum Erwärmen und zum Kühlen mittels einer in seinem Innern umlaufenden heissen oder kalten Flüssigkeit versehen, die nach Bedarf durch eine der beiden Leitungen 18a und 18b eintreten und durch die andere Leitung austreten kann.In the central region of the
Unterhalb des Plattenhalters 18 ist eine Kammer 20 vorgesehen, in welcher ein Unterdruck erzeugt werden kann. Diese Kammer 20 wird durch einen Blasebalg gebildet, dessen oberes Ende am Rande des Plattenhalters 18 befestigt ist und dessen unteres Ende sich in enger Berührung mit der Kunststoffplatte 4 befindet.A
Auf einer Konsole 21 sind ein Hochfrequenzgerät 22, an das die Elektrode 7 angeschlossen ist, sowie die verschiedenen Bedienungsorgane angeordnet, welche beispielsweise die Verschiebung der als Schlitten ausgebildeten Rahmen 2 und 3, die Betätigung des Zylinders 11 mit seinem Kolben sowie die Ein- und Ausschaltung des Hochfrequenzgeräts 11 erlauben.On a
Die beschriebene Installation ist selbstverständlich nur ein Ausführungsbeispiel und lässt zahlreiche bauliche Varianten zu, insbesondere beispielsweise im Hinblick auf die relative Verschiebbarkeit zwischen Kunststoffplatte 4 einerseits und Elektrode 7 sowie Originalplatte 19 andererseits. Anstatt nur die Kunststoffplatte 4 auf dem Gestell 1 in den beiden Richtungen F2 und F3 zu verschieben, kann die Anordnung auch so getroffen sein, dass die ganze Plattenhaltevorrichtung mitsamt dem Zylinder 11 und der Originalplatte 19 sowie der Elektrode 7 in einer der horizontalen Richtungen F2 oder F3 und die Kunststoffplatte 4 dann nur in der anderen Richtung F3 oder F2 verschoben werden kann, oder dass die ganze Plattenhaltevorrichtung mit dem Zylinder 11 und der Originalplatte 19 sowie der Elektrode 7 in beiden Richtungen verschiebbar ist, während die Kunststoffplatte 4 auf dem Gestell 1 festliegt.The installation described is of course only one exemplary embodiment and allows numerous structural variants, in particular, for example, with regard to the relative displaceability between
Gemäss einer etwas abgewandelten Ausführungsform kann zwischen der Elektrode 7 und der Kunststoffplatte 4 eine auf der Elektrode liegende Schicht 24 (Figur 3), vorzugsweise aus Glasfasern, vorgesehen sein, um einen guten Sitz dieser Elektrode 7 während des Pressens zu gewährleisten.According to a somewhat modified embodiment, a layer 24 (FIG. 3) lying on the electrode, preferably made of glass fibers, can be provided between the
Nachstehend wird anhand der beschriebenen Installation das Verfahren nach der Erfindung erläutert.The method according to the invention is explained below on the basis of the installation described.
Man beginnt mit der Vorbereitung einer Originalplatte 19 aus Metall, die das zu reproduzierende Bild oder Muster in Form von eingravierten Linien und gegebenenfalls punktförmigen Bereichen unterschiedlicher Tiefe aufweist, jedoch auch aus einer Original-Reliefplatte bestehen kann, welche das zu reproduzierende Muster oder Bild in Form von entsprechenden Erhöhungen trägt. Diese Originalplatte 19 wird an der Unterseite des Plattenhalters 18 befestigt.One begins with the preparation of an original plate 19 made of metal, which has the image or pattern to be reproduced in the form of engraved lines and possibly punctiform areas of different depth, but can also consist of an original relief plate, which has the pattern or image to be reproduced in the form of corresponding increases. This original plate 19 is attached to the underside of the
Ferner wird eine Kunststoffplatte 4 aus einem durch Warmpressen verformbarem Material vorbereitet, die praktisch dieselben Abmessungen wie die herzustellende Stichtiefdruckplatte hat. Diese Kunststoffplatte 4 kann insbesondere aus einem unter dem Handelsnamen Cobex bekannten PVC bestehen.Furthermore, a
Diese Kunststoffplatte 4 wird, bei angehobenem Plattenhalter 18, im als Schlitten ausgebildeten Tragrahmen 3 angeordnet und durch einstellbare Befestigungsorgane 3a in Form von kleinen Zangen gehalten, welche die Kunststoffplatte 4 gleichförmig innerhalb des Rahmens 3 spannen. Mit Hilfe der beiden verschiebbaren Rahmen 2 und 3 führt man die Kunststoffplatte 4 in eine erste justierte Lage, in welcher der Plattenbereich, der den ersten Abdruck 23 erhalten soll, genau unterhalb der angehobenen Originalplatte 19 über der Elektrode 7 liegt, welche näherungsweise die gleichen Abmessungen wie die Originalplatte 19 hat.This
Zur Erzeugung des ersten Abdrucks auf der Kunststoffplatte 4 wird der Plattenhalter 18 mit Hilfe des Kolbens des Zylinders 11 zunächst so seit abgesenkt, dass das untere Ende des die Kammer 20 bildenden Blasebalgs auf der Kunststoffplatte 4 aufliegt. Mittels einer nicht dargestellten Vorrichtung erzeugt man dann innerhalb der Kammer 20 ein Vakuum von ungefähr 80%, und anschliessend wird die gravierte Originalplatte 19 auf die Kunststoffplatte 4 abgesenkt. Um das eigentliche Warmpressen durchzuführen, wird mit Hilfe des Zylinders 11 ein Druck in der Grössenordnung von beispielsweise 20 kg/cm² auf die an der Elektrode 7 anliegende Kunststoffplatte ausgeübt, das ist ein um das 5 bis 10-fach geringerer Druck als bei bisher bekannten Verfahren. Während einer bestimmten Zeit, beispielsweise während 15 bis 20 Sekunden, wird Hochfrequenzspannung an die Elektrode 7 gelegt, um die Kunststoffplatte 4 durch Hochfrequenz zu erwärmen. Dann wird die Speisung der Elektrode 7 abgeschaltet und die Kunststoffplatte 4 während 3 bis 4 Minuten gekühlt, indem eine Kühlflüssigkeit durch die Vorrichtung 8 geleitet wird; ebenso wird die Originalplatte 19 gekühlt, indem eine Kühlflüssigkeit durch den Plattenhalter 18 geleitet wird.To generate the first impression on the
Nachdem die Temperatur hinreichend abgesunken ist und die Kammer 20 wieder auf normalen Atmosphärendruck gebracht wurde, wird die Originalplatte 19 durch Anhebung von der Kunststoffplatte 4 entfernt. Die Kunststoffplatte 4 wird dann in die zweite, dem zweiten anzubringenden Abdruck entsprechende justierte Stellung verschoben, entweder in Richtung F2 oder in Richtung F3, und danach wird die Folge der vorstehend beschriebenen Operationen erneut durchgeführt, um den zweiten Abdruck zu erzeugen. Diese Folge von Schritten wird sukzessive so lange fortgesetzt, bis die Kunststoffplatte 4 mit so vielen reihen- und spaltenweise angeordneten Abdrücken versehen worden ist, wie es gewünscht wird, das heisst, bis Anzahl und Anordnung der Abdrücke denen der herzustellenden Stichtiefdruckplatte entsprechen.After the temperature has dropped sufficiently and the
Man erhält so auf einfache Weise eine Mehrfachform in Gestalt einer Kunststoffplatte 4 mit einer entsprechenden Anzahl von Abdrücken. Da im betrachteten Beispiel von einer gravierten originalplatte ausgegangen wurde, stellt diese Mehrfachform eine Mehrfachpatrize mit erhabenen Abdrücken dar. Wenn man dagegen von einer Originalplatte mit erhabenen Reliefs ausgeht, dann erhält man nach demselben Verfahren, welches vorstehend beschrieben wurde, eine Mehrfachmatrize in Form einer Kunststoffplatte, deren Abdrücke aus Vertiefungen bestehen.A multiple shape in the form of a
Mit einer so erhaltenen Mehrfachform werden nach bekannten Verfahren die entsprechenden Stichtiefdruckplatten hergestellt.With a multiple mold obtained in this way, the corresponding intaglio printing plates are produced by known processes.
Bevor die Originalplatte 19 mit der Kunststoffplatte 4 in Berührung gebracht wird, kann es zweckmässig sein, entweder nur die Kunststoffplatte 4 mit Hilfe der Hochfrequenzerwärmung oder aber sowohl diese Kunststoffplatte 4 als auch die Originalplatte 19 vorzuwärmen, wobei im letzten Falle während einiger Minuten heisses Wasser durch das Innere des Plattenhalters 18 geleitet wird, bevor die Originalplatte 19 auf die Kunststoffplatte 4 abgesenkt wird. Dieses Vorwärmen erlaubt es, die Qualität des Abdrucks zu verbessern, weil dadurch Probleme, die mit der unterschiedlichen Ausdehnung der miteinander in Berührung befindlichen Teile zusammenhängen, vermieden werden; derartige Ausdehnungen können möglicherweise die Qualität des Abdrucks beeinträchtigen.Before the original plate 19 is brought into contact with the
Anstatt den Plattenhalter 18 zwecks Durchführung des Warmpressens auf die Kunststoffplatte 4 abzusenken, kann die Installation auch so beschaffen sein, dass die Plattenhaltevorrichtung feststeht und die Elektroden 7 mit ihrer Auflage angehoben wird, um die Kunststoffplatte 4 gegen die Originalplatte 19 zu pressen.Instead of lowering the
Die Erfindung ist nicht auf das beschriebene Ausführungsbeispiel beschränkt, sondern lässt im Rahmen der Erfindungsidee mannigfache Varianten zu.The invention is not limited to the exemplary embodiment described, but rather allows for numerous variants within the scope of the inventive idea.
Claims (10)
- A method of manufacturing a multi-impression mold for reproducing intaglio printing plates, consisting of a plastic plate comprising a plurality of impressions which are produced using an original plate by means of compression molding with heating of the plastic, characterized by the following steps :a) a plastic plate made of material being deformable by means of compression molding with heating is prepared, the said plate having essentially the dimensions of the intaglio printing plate required;b) this plastic plate is placed between the original plate and an electrode in the form of a plate that has approximately the same size as the original plate, and said plastic plate is placed in an adjusted position corresponding to the location of the first impression to be produced;c) the first impression is produced on the plastic plate by compressing the latter and subjecting it simultaneously to a high-frequency heating by applying high-frequency to the said electrode by means of a high-frequency apparatus for a given period of time;d) once this period has lapsed, the plastic plate is cooled;e) the original plate is separated from the plastic plate and relative displacement is effected between, on the one hand, the plastic plate and, on the other hand, the original plate and the electrode such that the plastic plate is in a position corresponding to the location of the second impression to be produced, then the operation of compression molding with high-frequency heating is carried out once more for producing the second impression, and the sequence of the mentioned steps is repeated successively until the plastic plate is provided with the required number and configuration of impressions.
- The method as claimed in claim 1, characterized in that the compression molding with heating of the plastic plate is performed in a partial vacuum.
- A plant for implementing the method as claimed in claim 1, characterized by the following components :
a high-frequency electrode (7) having approximately the shape and the dimensions of the original plate (19), a support (5) supporting this electrode (7), a plate-carrying device (13 to 18 ) intended to support the original plate (19) at a distance from the electrode (7), a support frame (3) provided with fixing means (3a) for supporting a plastic plate (4) made of deformable material, having approximately the dimensions of the intaglio printing plate required, this support frame (3) being arranged between the plate-carrying device (13 to 18) and the electrode (7), means for effecting relative displacement between, on the one hand, the support frame (3) and, on the other hand, the original plate (19) and the electrode (7) in two perpendicular horizontal directions (F2 and F3), and means for effecting a relative displacement perpendicularly relative to the plane of the plastic plate (4) between, on the one hand, the plate-carrying device (13 to 19) and, on the other hand, the electrode (7) and its support (5). - The plant as claimed in claim 3, characterized in that a chamber (20) inside which a partial vacuum may be created is arranged between the original plate (19) and the part of the plastic plate (4) opposite this original plate (19).
- The plant as claimed in claim 3 or 4, characterized in that an insulating plate (6) is arranged between the support (5) and the electrode (7), that the plastic plate (4) is supported by the electrode (7) and that the plate-carrying device (13 to 18) is provided with means (11) for displacing it vertically and applying a compressive force on the plastic plate (4).
- The plant as claimed in one of claims 3 to 5, characterized in that the plate-carrying device (13 to 18) comprises a plate support (18) carrying the original plate (19), said plate support is equipped with heating and cooling means.
- The plant as claimed in one of claims 3 to 6, characterized in that the plate-carrying device (13 to 18) comprises a horizontal plate (13) fastened to the lower end of the rod (12) of a piston of a double-acting jack (11) and from which plate (13) there is suspended the plate support (18) by means of fixing members (16), enabling adjustment of the distance between the said plate support (18) and the horizontal plate (13) fastened to the rod (12) of the piston, said horizontal plate (13) being preferably provided with guiding members (14, 15).
- The plant as claimed in one of claims 3 to 7, characterized in that a cooling device (8) is arranged on the side of the electrode (7) turned away from the plastic plate (4).
- The plant as claimed in one of claims 3 to 8, characterized in that the support frame (3) supporting the plastic plate (4) is designed as a slide that is supported in a longitudinally movable manner by another frame (2), also designed as a slide which can be displaced in a direction perpendicular to the displacement direction of the first mentioned support frame (3).
- The plant as claimed in one of claims 3 to 9, characterized in that it comprises, between the electrode (7) and the plastic plate (4), a layer (24), for example made of glass fibers, for ensuring a proper seat for the electrode (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89810144T ATE91964T1 (en) | 1988-03-28 | 1989-02-23 | PROCEDURE AND INSTALLATION FOR MAKING A MULTIPLE MOLD FOR THE REPRODUCTION OF INtaglio PRINTING PLATES. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1164/88 | 1988-03-28 | ||
| CH1164/88A CH675097A5 (en) | 1988-03-28 | 1988-03-28 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0335830A2 EP0335830A2 (en) | 1989-10-04 |
| EP0335830A3 EP0335830A3 (en) | 1990-07-18 |
| EP0335830B1 true EP0335830B1 (en) | 1993-07-28 |
Family
ID=4203975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89810144A Expired - Lifetime EP0335830B1 (en) | 1988-03-28 | 1989-02-23 | Process and installation for producing a multiple form for the reproduction of line engraved intaglio printing plates |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5051083A (en) |
| EP (1) | EP0335830B1 (en) |
| JP (1) | JPH07110534B2 (en) |
| AT (1) | ATE91964T1 (en) |
| AU (1) | AU612803B2 (en) |
| CA (1) | CA1311592C (en) |
| CH (1) | CH675097A5 (en) |
| DD (1) | DD280294A5 (en) |
| DE (1) | DE58905002D1 (en) |
| RU (1) | RU1769738C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1323167C (en) * | 1988-08-18 | 1993-10-19 | Valerie Ford | Process and apparatus for heat forming of material |
| EP0443292B1 (en) * | 1990-02-19 | 1993-10-20 | De La Rue Giori S.A. | Device and method for the manufacture of a multiple plastic mould for the reproduction of intaglio printing plates |
| AUPN897996A0 (en) * | 1996-03-27 | 1996-04-26 | Norford Industries Pty Limited | Method for heat forming solid surface veneer |
| US7482085B2 (en) * | 1996-06-07 | 2009-01-27 | Bdf Ip Holdings Ltd. | Apparatus for improving the cold starting capability of an electrochemical fuel cell |
| US5725890A (en) * | 1996-09-04 | 1998-03-10 | Cheng; Yu-Feng | Mechanism for forming a distal face of a fiber-optics |
| US7018674B2 (en) * | 2001-03-02 | 2006-03-28 | Omron, Corporation | Manufacturing methods and apparatuses of an optical device and a reflection plate provided with a resin thin film having a micro-asperity pattern |
| DE10328198A1 (en) * | 2003-06-24 | 2005-01-20 | Bernd Hansen | embosser |
| EP1712347A1 (en) * | 2004-02-04 | 2006-10-18 | Sumitomo Heavy Industries, Ltd. | Pressing/molding apparatus, mold, and pressing/molding method |
| JP4554330B2 (en) * | 2004-10-21 | 2010-09-29 | 株式会社リコー | High durability heat insulating stamper structure |
| JP5176064B2 (en) * | 2009-04-28 | 2013-04-03 | 独立行政法人 国立印刷局 | Multi-face plate making apparatus and multi-face plate making method |
| JP2017045714A (en) * | 2015-08-28 | 2017-03-02 | 東洋製罐グループホールディングス株式会社 | High frequency dielectric heating method |
| CN110193972A (en) * | 2019-07-03 | 2019-09-03 | 海盐华港印刷有限公司 | A kind of dual-purpose color card production Embosser of plane stereo |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1991009A (en) * | 1931-06-24 | 1935-02-12 | Theodore C Browne | Printing plate and method for forming the same |
| US2463289A (en) * | 1946-08-30 | 1949-03-01 | Goodrich Co B F | Method and apparatus for producing cellular rubber material |
| US2754606A (en) * | 1950-05-04 | 1956-07-17 | Williams John | Method of forming moulded printing negatives and positives |
| US2920172A (en) * | 1956-10-04 | 1960-01-05 | Gen Motors Corp | Dielectric heating and pressing die structure |
| US3101668A (en) * | 1960-03-14 | 1963-08-27 | Johnson & Son Inc S C | Printing members and method of making same |
| DE1629681A1 (en) * | 1965-10-23 | 1971-01-28 | Teldec Telefunken Decca | Device for stamping grooves in records |
| US3553071A (en) * | 1966-08-19 | 1971-01-05 | Grace W R & Co | Novel printing sheet material |
| US3593376A (en) * | 1968-04-04 | 1971-07-20 | Clement Co J W | Apparatus for making multiple-image electrotype molds |
| JPS53105558A (en) * | 1977-02-28 | 1978-09-13 | Dainippon Printing Co Ltd | Forming of relief pattern |
| DE2851875C2 (en) * | 1978-11-30 | 1983-11-10 | Heinz Wilhelm 8000 München Becker | Reproduction method for oil paintings or the like |
| JPS5763213A (en) * | 1980-10-03 | 1982-04-16 | Tomotaka Hida | Molding of thermoplastic hard resin plate |
| JPS5952632A (en) * | 1982-09-18 | 1984-03-27 | Showa Kasei:Kk | Production of synthetic resin stamp member |
| JPS59194846A (en) * | 1983-04-21 | 1984-11-05 | Japan Steel Works Ltd:The | Transfer molding machine |
| JPS62152710A (en) * | 1985-12-27 | 1987-07-07 | Dainippon Printing Co Ltd | Manufacture of release sheet for shaping irregularities |
-
1988
- 1988-03-28 CH CH1164/88A patent/CH675097A5/fr not_active IP Right Cessation
-
1989
- 1989-02-21 CA CA000591663A patent/CA1311592C/en not_active Expired - Lifetime
- 1989-02-23 AT AT89810144T patent/ATE91964T1/en not_active IP Right Cessation
- 1989-02-23 DE DE8989810144T patent/DE58905002D1/en not_active Expired - Fee Related
- 1989-02-23 EP EP89810144A patent/EP0335830B1/en not_active Expired - Lifetime
- 1989-03-22 AU AU31611/89A patent/AU612803B2/en not_active Ceased
- 1989-03-23 DD DD89326851A patent/DD280294A5/en not_active IP Right Cessation
- 1989-03-27 RU SU894613758A patent/RU1769738C/en active
- 1989-03-28 JP JP1074126A patent/JPH07110534B2/en not_active Expired - Lifetime
-
1990
- 1990-03-02 US US07/487,528 patent/US5051083A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA1311592C (en) | 1992-12-22 |
| US5051083A (en) | 1991-09-24 |
| ATE91964T1 (en) | 1993-08-15 |
| JPH07110534B2 (en) | 1995-11-29 |
| DD280294A5 (en) | 1990-07-04 |
| CH675097A5 (en) | 1990-08-31 |
| EP0335830A2 (en) | 1989-10-04 |
| AU612803B2 (en) | 1991-07-18 |
| RU1769738C (en) | 1992-10-15 |
| DE58905002D1 (en) | 1993-09-02 |
| JPH01297246A (en) | 1989-11-30 |
| AU3161189A (en) | 1989-09-28 |
| EP0335830A3 (en) | 1990-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1262315B1 (en) | Method and apparatus for making a printing plate | |
| EP0335830B1 (en) | Process and installation for producing a multiple form for the reproduction of line engraved intaglio printing plates | |
| EP0712706B1 (en) | Process for manufacturing an embossing roll for continuously embossing the surface of a thermoplastic sheet | |
| DE3830341A1 (en) | SYSTEM FOR PERMEATION PRINTING ON PLASTIC MOLDED BODIES | |
| DE3032931A1 (en) | METHOD AND ARRANGEMENT FOR THE PRODUCTION OF MULTILAYER CIRCUIT BOARDS | |
| DE4033230C2 (en) | ||
| DE3318144A1 (en) | DEVICE FOR PRODUCING MATERIALS FOR A MILLING PRESS | |
| DE60101680T2 (en) | METHOD FOR PRODUCING SHEETS FOR A PROTOTYPE QUICK PROCESS, REPROCESSING AND COMPOSITION OF THESE SHEETS AND PARTS PRODUCED | |
| DE930145C (en) | Device for setting up printing plates | |
| WO1999000213A1 (en) | Method and device for producing an embossed structure on an embossing tool used to shape the surface of pressed laminates | |
| DE2937274A1 (en) | DEVICE FOR CONNECTING THE OVERLAY EDGES OF A PLASTIC PANEL | |
| DE4309258C2 (en) | Process for making a flexographic printing plate | |
| EP0392047A1 (en) | Method and apparatus for deforming by way of heat multilayer resin laminates | |
| DE1805204C3 (en) | Arrangement for the production of multicolor prints | |
| DE3630412C2 (en) | ||
| DE3906958A1 (en) | Method for manufacturing flat components | |
| DE602005003794T2 (en) | HYBRID PRESS FOR FORMING LARGE WORKPIECES | |
| DE2826679A1 (en) | METHOD OF FORMING TOOLS FOR SUPERPLASTIC METAL SHEETS | |
| EP0297471A2 (en) | Method for controlling a clamping device | |
| DE102013007532B4 (en) | Apparatus and method for embossing a structure into a fiberboard | |
| DE4314707C1 (en) | Method and device for applying hard material to teeth of cutting tools, in particular saw blades | |
| DE1813448A1 (en) | Method and device for connecting small components to a base plate made of superplastic metal | |
| DE2402190A1 (en) | Appts for bending a steel plate - has formations of upper and lower punches hydraulically operated either side of plate | |
| DE2132892A1 (en) | METHOD AND DEVICE FOR EMBOSSING AND SEPARATING PLASTIC PARTS | |
| DE162753C (en) |
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 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT CH DE FR GB IT LI SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT CH DE FR GB IT LI SE |
|
| 17P | Request for examination filed |
Effective date: 19901222 |
|
| 17Q | First examination report despatched |
Effective date: 19921021 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE FR GB IT LI SE |
|
| REF | Corresponds to: |
Ref document number: 91964 Country of ref document: AT Date of ref document: 19930815 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 58905002 Country of ref document: DE Date of ref document: 19930902 |
|
| ITF | It: translation for a ep patent filed |
Owner name: BUGNION S.P.A. |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19931011 |
|
| ET | Fr: translation filed | ||
| ITTA | It: last paid annual fee | ||
| 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 | ||
| EAL | Se: european patent in force in sweden |
Ref document number: 89810144.9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20000216 Year of fee payment: 12 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20000217 Year of fee payment: 12 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20000218 Year of fee payment: 12 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20000222 Year of fee payment: 12 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20000223 Year of fee payment: 12 |
|
| 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 NON-PAYMENT OF DUE FEES Effective date: 20010223 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010223 |
|
| 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 NON-PAYMENT OF DUE FEES Effective date: 20010224 |
|
| EUG | Se: european patent has lapsed |
Ref document number: 89810144.9 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20010223 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011031 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011201 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Free format text: DE LA RUE GIORI S.A. TRANSFER- KBA-GIORI S.A. |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20020425 Year of fee payment: 14 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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 |
|
| 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: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050223 |