EP0908309A1 - Printing squeegee and method for its manufacturing - Google Patents
Printing squeegee and method for its manufacturing Download PDFInfo
- Publication number
- EP0908309A1 EP0908309A1 EP97117424A EP97117424A EP0908309A1 EP 0908309 A1 EP0908309 A1 EP 0908309A1 EP 97117424 A EP97117424 A EP 97117424A EP 97117424 A EP97117424 A EP 97117424A EP 0908309 A1 EP0908309 A1 EP 0908309A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hard material
- facet
- pvd
- squeegee
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/06—Details
- B41F9/08—Wiping mechanisms
- B41F9/10—Doctors, scrapers, or like devices
- B41F9/1072—Blade construction
Definitions
- the invention relates to a method for equipping a Printing squeegee with a hard material layer and one after it process-produced doctor blade.
- the invention is therefore based on the object of the damage of the doctor blade material due to the high coating temperature prevent.
- PVD physical vapor deposition
- PA-CVD plasma-assisted chemical vapor deposition
- sputtering or In the arc process atoms or particles are released from a target and in plasma on the surface to be treated transported.
- PA-CVD process the layers are deposited about the plasma excitation of a hydrocarbon Gas.
- the power supply can be on the substrate holder respectively.
- Temperatures are expediently used here, which ensure that the doctor body to be coated at a temperature below the damage temperature and in any case remains below about 250 ° C.
- temperature-sensitive doctor blade body can be coated, for example steel in In terms of its tempering temperature or polymer materials.
- the hard material is preferably DLC (diamond-like carbon), a layer of carbon or high-carbon Layer, e.g. T. essentially by diamond crystal structures is shaped and corresponding abrasion resistance and has good sliding properties.
- DLC diamond-like carbon
- a layer of carbon or high-carbon Layer e.g. T. essentially by diamond crystal structures is shaped and corresponding abrasion resistance and has good sliding properties.
- it can also other hard materials or mixtures of DLC with others Trade substances, especially metal. You can achieve that the stressed surfaces of the doctor blade with increased wear resistance and good sliding properties become.
- the hard coating surface area to be finished beforehand subjected to an electrochemical material removal process is preferably used, which in the EP-A 728 579 is described, the disclosure of which hereby expressly made the subject of the present application becomes.
- This pretreatment creates a surface structure achieved that to a much lesser extent to breakouts and formation of cracks tends to be in conventional than not in this way chemically pretreated doctor blades. Combined with This property has proven itself in the coating according to the invention to a particularly high degree.
- the coating can - depending by material and application conditions - comparatively be brittle and then the inclination that may be present Outbreaks and pitting may intensify or do not decrease.
- it will be used in conjunction with the above Pretreatment used shows that the achieved Squeegee is extremely insensitive and to itself the good sliding properties of the hard coating still the hydrodynamic improvement of the sliding properties due to the special surface quality achieved by the pretreatment joins.
- the hard material is expediently applied in a smooth layer. This is done by sputtering the target and thus the coating material in atomic fineness is delivered by the target and to the one to be treated Surface.
- a less smooth, microscopic wavy, matt-appearing Coating is obtained using the so-called arc process or a similar method in which the Coating particles not in atoms, but in larger ones Dress the target towards the surface to be treated leave.
- the properties of the smooth layer often the wavy or matt layer can be higher in some Cases should be preferred because they are particularly low Dimensions tends to break out and also due to their microwave enables a hydrodynamic lubrication effect.
- a pressure doctor blade is generated by the method according to the invention, whose body is made of hardened and tempered below 300 ° C Steel is made and at least the facet and / or a side surface adjacent to the facet with a hard material layer applied in the PVD process.
- the doctor body can also be made of another, temperature-sensitive Material consist, for example a polymer material.
- the following process parameters are generated in this chamber: At a discharge pressure of approx. 500 mPa, atomization is carried out in an atmosphere of argon and a hydrocarbon gas such as C 2 H 6 , C 2 H 2 or C 2 H 4 chromium.
- the chrome targets are atomized via a DC power supply of approx. 1500W. This low power is required to keep the temperature of the parts to be coated below 200 ° C.
- a DC voltage or high frequency voltage 13.56 MHz
- approximately (- 100V) is additionally applied to the parts to be coated.
- This potential difference between the substrate holder and the surrounding walls leads to the bombardment of the substrates or the chromium atoms with argon and hydrocarbon ions, so that the layer material is compressed.
- a support layer is produced, the thickness of which is between 1 and 10 ⁇ m, preferably between 2 and 4 ⁇ m, and which follows the surface shape of the substrate microscopically smoothly. With less pressure on the forme cylinder than is usually used, this results in excellent printing results and an unusually long service life.
- a DC or HF power of approx. 1000W and a corresponding voltage of approx. 110V are applied to the substrate holder.
- a discharge pressure of approx. 400 mPa and a gas ratio of argon / hydrocarbon (C 2 H 2 ) of approx. 1 a plasma burns, which leads to the deposition of hard DLC layers.
- the targets themselves are switched off in this process, so that a purely plasma-assisted CVD deposition is present.
- a small power feed (approx. 300W) can also be made via the chrome targets.
- chromium nitride titanium nitride, Titanium carbonitride, titanium aluminum nitride, chromium carbide, Titanium hafnium nitride, titanium boride or titanium boron carbide and the like and mixtures of such substances with each other or with third substances, metals, in question.
- the layer should be selected to work in conjunction with the Underlay or, if applicable, between the underlay and the separating layer provided for the coating are not susceptible to corrosion is.
Abstract
Description
Die Erfindung betrifft ein verfahren zum Ausrüsten einer Druckrakel mit einer Hartstoffauflage und eine nach diesem verfahren hergestellte Druckrakel.The invention relates to a method for equipping a Printing squeegee with a hard material layer and one after it process-produced doctor blade.
Es ist bekannt (WO 86/07309, GB-A 2 128 551), den verschleißgefährdeten Bereich einer Druckrakel mit einer Hartstoffauflage zu versehen, die beispielsweise aus keramischem Material, Metallcarbiden oder Molybden besteht. Der Auftrag geschieht durch Spritzen flüssigen Materials. Dies verlangt oder ergibt eine beträchtliche Erhöhung der Rakeltemperatur, durch die temperaturempfindliche Rakelwerkstoffe geschädigt werden können. Dies gilt insbesondere für Stahl, der bei Temperaturen unterhalb 300°C angelassen wird.It is known (WO 86/07309, GB-A 2 128 551), the wear-prone Area of a squeegee with a hard material support to be provided, for example made of ceramic material, Metal carbides or molybdenum. The job happens by spraying liquid material. This demands or results in a significant increase in doctor blade temperature, damaged by the temperature-sensitive doctor blade materials can be. This is especially true for steel working at temperatures tempered below 300 ° C.
Der Erfindung liegt daher die Aufgabe zugrunde, die Schädigung des Rakelmaterials durch hohe Beschichtungstemperatur zu verhindern. Sie erreicht dies dadurch, daß der Hartstoff durch das Verfahren der Physical Vapour Deposition (PVD) oder der plasmaunterstützten Chemical Vapour Deposition (PA-CVD) aufgebracht wird. Im PVD-Verfahren werden durch Sputtern oder im Arc-Verfahren Atome bzw. Partikeln aus einem Target herausgelöst und im Plasma auf die zu behandelnde Oberfläche transportiert. Beim PA-CVD-Verfahren erfolgt die Schichtabscheidung über die Plasmaanregung eines kohlenwasserstoffhaltigen Gases. Die Leistungseinspeisung kann am Substrathalter erfolgen. Dabei werden zweckmäßigerweise Temperaturen angewendet, die sicherstellen, daß der zu beschichtende Rakelkörper auf einer Temperatur unterhalb der Schädigungstemperatur und jedenfalls unter etwa 250°C bleibt. Man erreicht dadurch, daß auch temperaturempfindliche Rakelkörper erfindungsgemäß beschichtet werden können, beispielsweise Stahl im Hinblick auf seine Anlaßtemperatur oder Polymerstoffe. Bei dem Hartstoff handelt es sich vorzugsweise um DLC (diamond-like carbon), eine Kohlenstoffschicht oder kohlenstoffreiche Schicht, die z. T. wesentlich durch Diamant-Kristallstrukturen geprägt ist und entsprechende Abrasionsfestigkeit und gute Gleiteigenschaften aufweist. Es kann sich aber auch um andere Hartstoffe oder um Gemische von DLC mit anderen Stoffen, insbesondere Metall, handeln. Man erreicht so, daß die beanspruchten Flächen der Rakel mit einer erhöhten Verschleißfestigkeit und guten Gleiteigenschaften ausgestattet werden.The invention is therefore based on the object of the damage of the doctor blade material due to the high coating temperature prevent. You achieve this in that the hard material through the process of physical vapor deposition (PVD) or the plasma-assisted chemical vapor deposition (PA-CVD) is applied. In the PVD process, sputtering or In the arc process, atoms or particles are released from a target and in plasma on the surface to be treated transported. In the PA-CVD process, the layers are deposited about the plasma excitation of a hydrocarbon Gas. The power supply can be on the substrate holder respectively. Temperatures are expediently used here, which ensure that the doctor body to be coated at a temperature below the damage temperature and in any case remains below about 250 ° C. You can achieve that also temperature-sensitive doctor blade body according to the invention can be coated, for example steel in In terms of its tempering temperature or polymer materials. At the hard material is preferably DLC (diamond-like carbon), a layer of carbon or high-carbon Layer, e.g. T. essentially by diamond crystal structures is shaped and corresponding abrasion resistance and has good sliding properties. But it can also other hard materials or mixtures of DLC with others Trade substances, especially metal. You can achieve that the stressed surfaces of the doctor blade with increased wear resistance and good sliding properties become.
Das gilt insbesondere für die sogenannten Facette der Rakel, das ist die gegebenenfalls unter einem von 90° abweichenden Winkel zur Hauptebene der Rakel geschliffene Stirnfläche, die zur Anlage am Druckzylinder bestimmt ist. Gute Ergebnisse werden auch dann erreicht, wenn die an die Facette angrenzende Seitenfläche erfindungsgemäß beschichtet wird, zu der hin die Bewegungsrichtung der Zylinderoberfläche gerichtet ist. Dies gilt auch dann, wenn die Facette unbeschichtet ist; jedoch werden zweckmäßigerweise sowohl die Facette als auch die genannte Seitenfläche beschichtet. This applies in particular to the so-called facet of the squeegee, this is the one possibly deviating from 90 ° Angle to the main plane of the squeegee ground face, the is intended to rest on the impression cylinder. Good results are achieved even if the one adjacent to the facet Side surface is coated according to the invention, towards the direction of movement of the cylinder surface is directed. This also applies if the facet is uncoated; however expediently both the facet and the said side surface coated.
Nach einem besonderen Merkmal der Erfindung wird der durch die Hartbeschichtung zu veredelnde Oberflächenbereich zuvor einem elektrochemischen Materialabtragprozeß unterworfen. Und zwar wird vorzugsweise das Verfahren angewendet, das in der EP-A 728 579 beschrieben ist, deren Offenbarung hierdurch ausdrücklich zum Gegenstand der vorliegenden Anmeldung gemacht wird. Durch diese Vorbehandlung wird eine Oberflächenstruktur erreicht, die in wesentlich geringerem Maße zu Ausbrüchen und Schartenbildung neigt als herkömmliche, nicht in dieser Weise chemisch vorbehandelte Rakeln. In Verbindung mit der erfindungsgemäßen Beschichtung bewährt sich diese Eigenschaft in besonders hohem Maße. Die Beschichtung kann - je nach Material und Aufbringungsbedingungen - vergleichsweise spröde sein und dann die gegebenenfalls vorhandene Neigung zu Ausbrüchen und Schartenbildung möglicherweise verstärken oder nicht verringern. Wird sie jedoch in Verbindung mit der genannten Vorbehandlung eingesetzt, so zeigt sich, daß die erzielte Rakel äußerst unempfindlich ist und zu den an sich schon guten Gleiteigenschaften der Hartbeschichtung noch die hydrodynamische Verbesserung der Gleiteigenschaften aufgrund der besonderen, durch die Vorbehandlung erzielten Oberflächenbeschaffenheit hinzutritt.According to a special feature of the invention the hard coating surface area to be finished beforehand subjected to an electrochemical material removal process. And although the method is preferably used, which in the EP-A 728 579 is described, the disclosure of which hereby expressly made the subject of the present application becomes. This pretreatment creates a surface structure achieved that to a much lesser extent to breakouts and formation of cracks tends to be in conventional than not in this way chemically pretreated doctor blades. Combined with This property has proven itself in the coating according to the invention to a particularly high degree. The coating can - depending by material and application conditions - comparatively be brittle and then the inclination that may be present Outbreaks and pitting may intensify or do not decrease. However, it will be used in conjunction with the above Pretreatment used shows that the achieved Squeegee is extremely insensitive and to itself the good sliding properties of the hard coating still the hydrodynamic improvement of the sliding properties due to the special surface quality achieved by the pretreatment joins.
Zweckmäßigerweise wird der Hartstoff in glatter Schicht aufgebracht. Dies geschieht dadurch, daß das Target gesputtert wird und dadurch der Beschichtungswerkstoff in atomarer Feinheit vom Target abgegeben wird und auf die zu behandelnde Oberfläche gelangt.The hard material is expediently applied in a smooth layer. This is done by sputtering the target and thus the coating material in atomic fineness is delivered by the target and to the one to be treated Surface.
Eine weniger glatte, mikroskopisch wellige, matt erscheinende Beschichtung erhält man bei Verwendung des sogenannten Arc-Verfahrens oder eines gleichartigen Verfahrens, bei dem die Beschichtungspartikeln nicht atomweise, sondern in größeren Verbänden das Target in Richtung zur behandelnden Oberfläche verlassen. Obwohl die Eigenschaften der glatten Schicht oft höherwertig sind, kann die wellige oder matte Schicht in manchen Fällen vorzuziehen sein, weil sie in besonders geringem Maße zu Ausbrüchen neigt und außerdem durch ihre Mikrowelligkeit einen hydrodynamischen Schmiereffekt ermöglicht.A less smooth, microscopic wavy, matt-appearing Coating is obtained using the so-called arc process or a similar method in which the Coating particles not in atoms, but in larger ones Dress the target towards the surface to be treated leave. Although the properties of the smooth layer often the wavy or matt layer can be higher in some Cases should be preferred because they are particularly low Dimensions tends to break out and also due to their microwave enables a hydrodynamic lubrication effect.
Durch das erfindungsgemäße Verfahren wird eine Druckrakel erzeugt, deren Körper aus gehärtetem und unterhalb 300°C angelassenem Stahl besteht und bei der mindestens die Facette und/oder eine der Facette benachbarte Seitenfläche mit einer im PVD-Verfahren aufgebrachten Hartstoffschicht versehen ist. Der Rakelkörper kann auch aus einem anderen, temperaturempfindlichen Material bestehen, beispielsweise einem Polymerstoff.A pressure doctor blade is generated by the method according to the invention, whose body is made of hardened and tempered below 300 ° C Steel is made and at least the facet and / or a side surface adjacent to the facet with a hard material layer applied in the PVD process. The doctor body can also be made of another, temperature-sensitive Material consist, for example a polymer material.
Einzelheiten der Erfindung ergeben sich aus der folgenden Erläuterung von zwei Beispielen. Eine Dünnschliffrakel, wie sie in EP-A 728 579 in Fig. 1 dargestellt und im zugehörigen Text erläutert ist, wird zunächst der dort beschriebenen, chemischen Behandlung unterworfen und anschließend kontinuierlich durch eine PVD-Kammer geführt.Details of the invention emerge from the following explanation of two examples. A thin section squeegee like her in EP-A 728 579 in Fig. 1 and in the accompanying text is explained, the chemical described there is first Subjected to treatment and then continuously passed through a PVD chamber.
Im ersten Anwendungsbeispiel werden in dieser Kammer die folgenden Verfahrensparameter erzeugt: Bei einem Entladungsdruck von ca. 500 mPa wird in einer Atmosphäre aus Argon und einem Kohlenwasserstoffgas wie z.B. C2H6, C2H2 oder C2H4 Chrom zerstäubt. Die Zerstäubung der Chromtargets erfolgt über eine Gleichstrom-Leistungseinspeisung von ca. 1500W. Diese geringe Leistung ist erforderlich, um die Temperatur der zu beschichtenden Teile unterhalb von 200°C zu halten. Zur Erzielung glatter und harter Schichten wird zusätzlich an die zu beschichtenden Teile eine Gleichspannung oder Hochfrequenzspannung (13,56 MHz) von ca.(-100V) angegelegt. Diese Potentialdifferenz des Substrathalters zu den umgebenden Wänden führt zum Beschuß der Substrate bzw. der Chromatome mit Argon- und Kohlenwasserstoffionen, so daß eine Verdichtung des Schichtmaterials auftritt. Auf der Facette und in einer Breite von größenordnungsmäßig 1 mm auf den benachbarten Seitenflächen wird dadurch eine Auflageschicht erzeugt, deren Dicke zwischen 1 und 10 µm, vorzugsweise zwischen 2 und 4 µm, liegt und die mikroskopisch glatt der Oberflächenform des Substrats folgt. Unter einer geringeren Anpressung am Formzylinder, als sie üblicherweise angewendet wird, ergeben sich damit ausgezeichnete Druckergebnisse und eine ungewohnlich lange Standzeit.In the first application example, the following process parameters are generated in this chamber: At a discharge pressure of approx. 500 mPa, atomization is carried out in an atmosphere of argon and a hydrocarbon gas such as C 2 H 6 , C 2 H 2 or C 2 H 4 chromium. The chrome targets are atomized via a DC power supply of approx. 1500W. This low power is required to keep the temperature of the parts to be coated below 200 ° C. To achieve smooth and hard layers, a DC voltage or high frequency voltage (13.56 MHz) of approximately (- 100V) is additionally applied to the parts to be coated. This potential difference between the substrate holder and the surrounding walls leads to the bombardment of the substrates or the chromium atoms with argon and hydrocarbon ions, so that the layer material is compressed. On the facet and in a width of the order of 1 mm on the adjacent side surfaces, a support layer is produced, the thickness of which is between 1 and 10 μm, preferably between 2 and 4 μm, and which follows the surface shape of the substrate microscopically smoothly. With less pressure on the forme cylinder than is usually used, this results in excellent printing results and an unusually long service life.
Im zweiten Anwendungsbeispiel für die plasma-unterstützte CVD-Abscheidung werden in dieser Kammer die folgenden Verfahrensparameter erzeugt: An den Substrathalter wird eine DC-oder HF-Leistung von ca. 1000W und eine entsprechende Spannung ca. 110V angelegt. Bei einem Entladungsdruck von ca. 400 mPa und einem Gasverhältnis von Argon / Kohlenwasserstoff (C2H2) von etwa 1 brennt ein Plasma, das zur Abscheidung harter DLC-Schichten führt. Die Targets selbst sind bei diesem Prozeß abgeschaltet, so daß eine reine plasma-unterstützte CVD-Abscheidung vorliegt. Zur Unterstützung des Plasmas kann auch eine geringe Leistungseinspeisung (ca. 300W) über die Chromtargets erfolgen.In the second application example for plasma-assisted CVD deposition, the following process parameters are generated in this chamber: A DC or HF power of approx. 1000W and a corresponding voltage of approx. 110V are applied to the substrate holder. At a discharge pressure of approx. 400 mPa and a gas ratio of argon / hydrocarbon (C 2 H 2 ) of approx. 1, a plasma burns, which leads to the deposition of hard DLC layers. The targets themselves are switched off in this process, so that a purely plasma-assisted CVD deposition is present. To support the plasma, a small power feed (approx. 300W) can also be made via the chrome targets.
Außer DLC kommen auch andere Hartstoffe wie Chromnitrid, Titannitrid, Titancarbonitrid, Titanaluminiumnitrid, Chromcarbid, Titanhafniumnitrid, Titanborid oder Titanborcarbid und dergleichen sowie Mischungen solcher Stoffe untereinander oder mit dritten Stoffen, Metallen, in Frage. Die Schicht sollte so ausgewählt werden, daß sie in Verbindung mit der Unterlage oder einer gegebenenfalls zwischen der Unterlage und der Beschichtung vorgesehenen Trennschicht nicht korrosionsanfällig ist.In addition to DLC, other hard materials such as chromium nitride, titanium nitride, Titanium carbonitride, titanium aluminum nitride, chromium carbide, Titanium hafnium nitride, titanium boride or titanium boron carbide and the like and mixtures of such substances with each other or with third substances, metals, in question. The layer should be selected to work in conjunction with the Underlay or, if applicable, between the underlay and the separating layer provided for the coating are not susceptible to corrosion is.
Claims (9)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE59707796T DE59707796D1 (en) | 1997-10-08 | 1997-10-08 | Squeegee and method of making the same |
| ES97117424T ES2179988T3 (en) | 1997-10-08 | 1997-10-08 | PRINT RACK AND PROCEDURE FOR MANUFACTURING. |
| EP97117424A EP0908309B1 (en) | 1997-10-08 | 1997-10-08 | Printing squeegee and method for its manufacturing |
| AT97117424T ATE220992T1 (en) | 1997-10-08 | 1997-10-08 | PRESSURE SQUEEGEE AND METHOD FOR PRODUCING THE SAME |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97117424A EP0908309B1 (en) | 1997-10-08 | 1997-10-08 | Printing squeegee and method for its manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0908309A1 true EP0908309A1 (en) | 1999-04-14 |
| EP0908309B1 EP0908309B1 (en) | 2002-07-24 |
Family
ID=8227457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97117424A Expired - Lifetime EP0908309B1 (en) | 1997-10-08 | 1997-10-08 | Printing squeegee and method for its manufacturing |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0908309B1 (en) |
| AT (1) | ATE220992T1 (en) |
| DE (1) | DE59707796D1 (en) |
| ES (1) | ES2179988T3 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1092535A1 (en) * | 1999-10-13 | 2001-04-18 | Think Laboratory Co., Ltd. | Doctor blade |
| BE1014623A3 (en) * | 2000-06-17 | 2004-02-03 | Preparation of pad printing plates, by applying coating using physical vapour deposition following etching | |
| US7228800B2 (en) | 2000-02-15 | 2007-06-12 | Tresu Anlaeg A/S | Doctor beam having a corrosion-resistant fiber coated channel |
| WO2008125297A1 (en) * | 2007-04-12 | 2008-10-23 | Dek International Gmbh | Wiper blade for a screen printing machine and method of manufacturing the same |
| WO2012128700A1 (en) * | 2011-03-18 | 2012-09-27 | Allan Lunnerfjord | Blade shaped tool and method for its manufacturing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB499463A (en) * | 1938-08-08 | 1939-01-24 | Miehle Printing Press & Mfg | Improvements relating to doctor blades for gravure-printing presses |
| DE4024514A1 (en) * | 1990-08-02 | 1992-02-06 | Marina Kinkel | Doctor blade for rotary printing machine - has wear reduced by soldering or welding hard material in exposed region |
| JPH04296556A (en) * | 1991-03-26 | 1992-10-20 | Toppan Printing Co Ltd | Doctor knife for intaglio printing and its manufacture |
| EP0709183A1 (en) * | 1994-10-26 | 1996-05-01 | MDC Max Dätwyler Bleienbach AG | Integrated doctor blade and back-up blade |
| JPH08197711A (en) * | 1995-01-30 | 1996-08-06 | Toppan Printing Co Ltd | Doctor blade |
| EP0728579A1 (en) * | 1995-02-27 | 1996-08-28 | Rolf Meyer | Doctor blade for intaglio printing machine, method and apparatus for manufacturing same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE506563C2 (en) * | 1996-05-02 | 1998-01-12 | Btg Eclepens Sa | crepe |
-
1997
- 1997-10-08 DE DE59707796T patent/DE59707796D1/en not_active Expired - Lifetime
- 1997-10-08 ES ES97117424T patent/ES2179988T3/en not_active Expired - Lifetime
- 1997-10-08 EP EP97117424A patent/EP0908309B1/en not_active Expired - Lifetime
- 1997-10-08 AT AT97117424T patent/ATE220992T1/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB499463A (en) * | 1938-08-08 | 1939-01-24 | Miehle Printing Press & Mfg | Improvements relating to doctor blades for gravure-printing presses |
| DE4024514A1 (en) * | 1990-08-02 | 1992-02-06 | Marina Kinkel | Doctor blade for rotary printing machine - has wear reduced by soldering or welding hard material in exposed region |
| JPH04296556A (en) * | 1991-03-26 | 1992-10-20 | Toppan Printing Co Ltd | Doctor knife for intaglio printing and its manufacture |
| EP0709183A1 (en) * | 1994-10-26 | 1996-05-01 | MDC Max Dätwyler Bleienbach AG | Integrated doctor blade and back-up blade |
| JPH08197711A (en) * | 1995-01-30 | 1996-08-06 | Toppan Printing Co Ltd | Doctor blade |
| EP0728579A1 (en) * | 1995-02-27 | 1996-08-28 | Rolf Meyer | Doctor blade for intaglio printing machine, method and apparatus for manufacturing same |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 17, no. 106 (M - 1375) 4 March 1997 (1997-03-04) * |
| PATENT ABSTRACTS OF JAPAN vol. 96, no. 12 26 December 1996 (1996-12-26) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1092535A1 (en) * | 1999-10-13 | 2001-04-18 | Think Laboratory Co., Ltd. | Doctor blade |
| US7228800B2 (en) | 2000-02-15 | 2007-06-12 | Tresu Anlaeg A/S | Doctor beam having a corrosion-resistant fiber coated channel |
| BE1014623A3 (en) * | 2000-06-17 | 2004-02-03 | Preparation of pad printing plates, by applying coating using physical vapour deposition following etching | |
| WO2008125297A1 (en) * | 2007-04-12 | 2008-10-23 | Dek International Gmbh | Wiper blade for a screen printing machine and method of manufacturing the same |
| WO2012128700A1 (en) * | 2011-03-18 | 2012-09-27 | Allan Lunnerfjord | Blade shaped tool and method for its manufacturing |
| CN103518018A (en) * | 2011-03-18 | 2014-01-15 | 艾伦.伦纳菲乔德 | Blade-shaped tool and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2179988T3 (en) | 2003-02-01 |
| EP0908309B1 (en) | 2002-07-24 |
| DE59707796D1 (en) | 2002-08-29 |
| ATE220992T1 (en) | 2002-08-15 |
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