EP1779935B1 - Coating apparatus and method - Google Patents
Coating apparatus and method Download PDFInfo
- Publication number
- EP1779935B1 EP1779935B1 EP06122978A EP06122978A EP1779935B1 EP 1779935 B1 EP1779935 B1 EP 1779935B1 EP 06122978 A EP06122978 A EP 06122978A EP 06122978 A EP06122978 A EP 06122978A EP 1779935 B1 EP1779935 B1 EP 1779935B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- coating
- curtain
- colour
- curtain coating
- 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.)
- Not-in-force
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
- D21H23/48—Curtain coaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1005—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material already applied to the surface, e.g. coating thickness, weight or pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/007—Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
- B05C5/008—Slide-hopper curtain coaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/78—Controlling or regulating not limited to any particular process or apparatus
Definitions
- the present invention relates to a method and a device for two-coat application of coating color on the surface of a moving web (w), in particular a paper or board web, using a coating device, in which for the two-layer application of coating color two arranged at any distance from each other Curtain coats, each dispensing coating color down are provided and wherein on a guide plate on which successively issued by the aforementioned Vorhangstreichköpfen in the direction of an inclined plane of the guide plate down respective coating colors to form a two-layer ink layer in the course of their movement over the inclined plane and said color layers are delivered in the form of a color curtain to the surface of the moving web.
- a coating color or coating compound is applied to a serving as a base paper base sheet and then dried using a coater.
- the devices used in the coating application for this purpose are referred to as coating machines.
- curtain coater in which a curtain-shaped coating film from a Vorhangstreichkopf (from a chamber with spray nozzle to form a curtain film of coating color) is delivered to a moving web and there is a cover line is increasingly used.
- curtain coaters have been used in the field of photographic printing paper production for many years, curtain coaters remain unused in the paper industry due to the unstable stroke caused by the instability of the coating curtain due to draft, bubble entrapment and lack of mechanical precision at high operating speeds.
- FIG. 6 shows a cross section of a two-layer curtain coater used for this purpose, as in similar form in Japanese Patent 63-239 (Publication number JP 53-2108 ) is disclosed.
- the coating colors ta, tb from above arranged Vorhangstreichköpfen a, b as color curtains ca, cb on a web w moved in the direction of the arrow w and form on the surface of the web w a two-layer line s consisting of the layers sa, sb.
- a coating layer is usually formed as a first layer on the film surface, and the coating layer sb is usually formed as a second layer on the surface of the first coating layer sa.
- FIG. 7 shows the cross section of an im Japanese Patent S62-47075 (Publication number JP 54-124039 ) disclosed two-coat coater.
- the coating colors ta, tb are dispensed from a dual curtain coating head c as overlapped two-layer color curtains ca, cb, following in the same manner as in FIG FIG. 6 a two-layer coating layer sa, sb on the surface a running web w is formed.
- the first layer ca of the color curtain is wider than the web w
- the other layer cb of the color curtain which is narrower than the web w
- the overflowing color ta can be collected and recycled for reuse for the application of a coating layer same recipe for liquid feed. Note that during free fall, the color curtain will shrink in width due to changes in surface tension.
- the publication EP 1 475 162 A2 discloses a device for the two-ply application of coating color to the surface of a moving web, in particular a paper or board web having two spaced-apart curtain coaters, each coating paint down to the web and with a guide plate on which the two curtain coaters successively in the direction of an inclined plane down given respective coating colors to form a two-layer ink layer are laminated in the course of their movement over the inclined plane.
- the present invention has for its object to provide a method and apparatus for two-layer curtain application, in which or avoided in a lane offset of the web, but at least reduced and a dispersion of the color layers is reduced.
- the object is achieved by a method according to claim 1.
- an offset sensor is used to detect the roll offset of the web and a thickness gauge to detect the amount applied to the web.
- the position of one of the two curtain coaters is controlled laterally by signals provided by the offset sensor to match the lane offset of the web, while the position of the other curtain coat head in the lateral direction is controlled by signals from the thickness gauge relative to the first curtain coat head will minimize dispersion of the total amount of application dispensed by the two curtain coats.
- the invention also relates to a device according to claim 8.
- the curtain coating heads are moved according to the invention laterally to the web and set the width of the coating color dispensed by the curtain coaters greater than the web width.
- an offset sensor a lolling offset of the web and with a thickness gauge, the applied to the web order amount is dedektiert.
- the position of one of the two curtain coaters is controlled laterally by signals provided by the offset sensor to correspond to the lane offset of the web, while the position of the other curtain coat head in the lateral direction through the thickness gauge is related to the first curtain coat head Signals are controlled so that the dispersion of the total order amount delivered by the two curtain coaters is minimized.
- the beneficial effects of the coater and coating method of the present invention include facilitating a trouble-free stroke even with skew-related paper misalignment and further minimizing the application amount dispersion, as well as allowing for easy color recovery and system rinse with water before and after brushing ,
- the coating device 1 is a coating device for the two-layer application of coating colors on a moving web w.
- the coating device 1 comprises two curtain coating heads 1a, 1b arranged at any distance from each other for the downwardly directed delivery of corresponding coating colors.
- the symbol 2 refers to a guide plate.
- the coating colors successively applied by the two above-mentioned curtain coating heads 1a, 1b downwards in the direction of an inclined plane 2a laminate so that they form a two-layered color layer in the course of their movement over the inclined plane 2a.
- the said ink layer is for this purpose in the form of a curtain consisting of the color curtains ca and cb, directed downwards onto the surface of the web w via a downward-pointing curtain guide part 2b at the lower end of said inclined plane 2a, forming a uniform coating layer s, which consists of the individual layers sa and sb, on the web w out.
- the coating colors ta and tb have the same composition, the color curtains ca, cb are wider than the web w.
- the sections of the color curtains ca, cb which flow over the edges of the web w on both sides are collected in a paint trough 3.
- the apparatus includes means for recovering the coating color to independently absorb and recycle all the ink discharged from the curtain coating heads 1a, 1b prior to coating the web.
- the ink recovery means includes a paint tray 4a which is wider than the ink discharged from the curtain coating head 1a and intended to recover the total amount of ink and water discharged by the curtain coating head 1a.
- the ink recovery means also includes a paint tray 4b which is wider than the ink discharged from the curtain coating head 1b is determined for the recovery of the total amount of paint and water discharged by the curtain coating head 1a.
- a pump not shown in the figures, the entire color trapped in the ink pans 4a, 4b is returned to the corresponding feedstock systems.
- FIG. 3b In the transition from the operational preparation phase to the operating phase, in FIG. 3b only the guide plate 2 moves. The curtain coating heads 1a and 1b remain stationary.
- the curtain coating heads 1a, 1b are displaceable in the lateral direction of the web w, as in FIG Fig. 2 shown. That is, the curtain coating heads 1a, 1b have a sliding part 5.
- the sliding part 5 (see Fig. 1 ), which includes a rail 5a and an engaging part 5b engaging in the rail 5a, is driven by an actuator 11.
- the actuator 11 may be a hydraulic cylinder or a servo cylinder.
- the symbol 6 denotes an offset sensor for detecting the roll offset of the web w.
- the offset sensor 6 may, for example, constitute a device for detecting the position of a web edge with the aid of a CCD camera.
- the order quantity gauge 7 denotes a thickness gauge for detecting the amount of application on the web w.
- the order quantity gauge 7 comprises a thickness gauge 7a for detecting the weight of the web w before coating, a thickness gauge 7b for detecting the weight of the web w after brushing.
- a computer 8 is configured to calculate the corresponding weight difference, the result output by the computer 8 expressing the order quantity.
- the thickness gauge 7 detects, while a sensor head of the thickness gauge scans the web in the lateral direction, the order quantity in a certain position.
- the sensor head in which devices are provided for transmitting and receiving light radiation, recognizes the degree of radiation attenuation during the passage of the web.
- the offset sensor 6 sends signals to a controller 10, and sends control signals to the actuators 11a, 11b of the curtain coaters 1a, 1b to turn them on To change the position of the Vorhangstreichkexcellent 1a, 1b in the lateral direction so that they correspond to the Schlingerversatz of the web.
- the output of the computer 8 is sent to a controller 9 and this sends control signals to an actuator 11b of the curtain coating head 1b. That is, the actuator 11b effects an adjustment of the relative position of the curtain coating head 1b to the curtain coating head 1a based on control signals received from the controller 10 and control signals received from the controller 9. The amount of this adjustment is controlled so as to minimize the total dispersion of the amount applied by the two curtain coaters 1a, 1b.
- the control of the dispersion of the total amount of application to a minimum is based on an adjustment amount program installed in the control unit 9, wherein the dispersion of the total application amount detected by the thickness gauge caused by any small side-to-side movement of the one curtain coat head over the other curtain coat head Is minimum, and the input of coming from the computer 8 signals in the program, which determines the output of the computer 9 in response thereto.
- the respective state of dispersion can be recognized, after which the optimum adjustment can be calculated on the basis of a corresponding calculation.
- the solid line indicates the mean position of the web w
- the broken line indicates its staggered pitch
- x indicates the distance between the center position and the staggered position.
- the center position of the curtain coating head 1a is shown by a solid line, and the state after the movement made by the actuator 11a is indicated by the broken line. The amount of this movement is x.
- the center position of the curtain coating head 1b is shown by a solid line, and the state after by the actuator 11b movement is indicated by the dashed line.
- the actuator 11b receives signals from both the controller 9 and the controller 10, and the curtain coating head 1b is displaced from the curtain coating head 1a by an amount y.
- the edge portions of the color curtain cb remain within the edges of the web w and there are no voids in the formed line.
- Vorhangstreichkexcellent 1a, 1b are laterally displaced to the web w and their position in the lateral direction to the web w via coming from the displacement sensor 6 signals is controlled so that it corresponds to the path offset, can between the color curtains ca, cb and the web In the lateral direction, a fixed relative position is constantly maintained and, accordingly, it is not possible for the side edges of the paper fed through the system to remain uncoated.
- the adjustment made to minimize the dispersion of the total application amount detected by the thickness gauge 7 by each small movement of the one curtain coating head 1b relative to the other curtain coating head 1a laterally of the web w is determined in terms of size.
- the two separately provided curtain coating heads 1a, 1b have, as already described, color recovery means 4a, 4b for receiving and independently returning the entire coating color dispensed by the curtain coating heads 1a, 1b.
- color recovery means 4a, 4b for receiving and independently returning the entire coating color dispensed by the curtain coating heads 1a, 1b.
- FIG. 4a to 4b each shows a diagram for the representation of the line dispersion.
- Fig. 4a should the stroke dispersion of a first layer sa and Fig. 4b represent the stroke dispersion of a second layer sb.
- Fig. 4c illustrates an overlapping state of curtain coating head 1a and curtain coating head 1b without displacement and
- Fig. 4d illustrates an overlapping condition in which the curtain coating head 1b faces the curtain coating head 1a has been moved to the left.
- the overlap ratio of the peaks and valleys is in Fig. 4d bigger than in Fig. 4c and the total dispersion amount is in Fig. 4d lower.
- FIG. 5 is a table that numerically represents the stroke dispersion.
- the numbers in the upper row of the respective table frames respectively indicate the order amount of the first layer sa
- the numbers in the lower row of the respective table frames respectively indicate the order amount of the second layer sb
- the numbers among the framed fields indicate the respective total order quantities.
- the dashed line indicates the position of the web w.
- Fig. 5a expresses the displacement-free overlapping state of curtain coating head 1a and curtain coating head 1b
- Fig. 5b expresses the overlapping state after the curtain coating head 1b has been shifted to the right with respect to the curtain coating head 1a
- the present invention is not limited to the embodiment described above, and accordingly a number of changes can be made to it.
- a thickness gauge is used to determine the total application amount, if a device that recognizes the weight of the specific components within the paint is used, only a single thickness gauge needs to be used Line application be used.
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Paper (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zum zweischichtigen Auftrag von Streichfarbe auf die Oberfläche einer laufenden Bahn (w), insbesondere einer Papier- oder Kartonbahn, unter Verwendung einer Streichvorrichtung, bei der für den zweischichtigen Auftrag von Streichfarbe zwei in beliebigem Abstand zueinander angeordnete Vorhangstreichköpfe, die jeweils Streichfarbe nach unten abgeben vorgesehen sind und wobei auf einem Führungsblech, auf dem die von den vorgenannten Vorhangstreichköpfen nacheinander in Richtung einer schiefen Ebene des Führungsbleches nach unten abgegebenen jeweiligen Streichfarben unter Ausbildung einer zweischichtigen Farbschicht im Zuge ihrer Bewegung über die schiefe Ebene laminiert werden und die besagten Farbschichten in Form eines Farbvorhanges an die Oberfläche der laufenden Bahn abgegeben werden.The present invention relates to a method and a device for two-coat application of coating color on the surface of a moving web (w), in particular a paper or board web, using a coating device, in which for the two-layer application of coating color two arranged at any distance from each other Curtain coats, each dispensing coating color down are provided and wherein on a guide plate on which successively issued by the aforementioned Vorhangstreichköpfen in the direction of an inclined plane of the guide plate down respective coating colors to form a two-layer ink layer in the course of their movement over the inclined plane and said color layers are delivered in the form of a color curtain to the surface of the moving web.
Bei der Herstellung einer gestrichenen Bahn, insbesondere gestrichener Papiere, wie allgemeiner Druckpapiere für den Einsatz in Katalogen und ähnlichem sowie druck- und wärmeempfindlicher Papiere wird mit Hilfe einer Streichmaschine eine Streichfarbe bzw. Streichmasse auf eine als Streichrohpapier dienende Bahn aufgetragen und danach getrocknet. Die beim Streichmassenauftrag dafür verwendeten Vorrichtungen werden als Streichmaschinen bezeichnet. Die bis heute am häufigsten eingesetzten Arten von Streichmaschinen, zu denen Rakel-, Rollrakel- und Luftmesserstreichmaschinen gehören, verwenden ein Verfahren mit nachträglicher Gewichtsbestimmung basierend auf dem Einfachauftrag einer überschüssigen Menge von Streichfarbe auf eine Bahn, der Entfernung der überschüssigen Farbe durch Abstreifen mit einem Rakelelement, d.h. einer Rakelklinge oder einem runden Verstreichstab oder ähnlichem oder durch Abblasen mit Luftbürste bzw. Luftmesser. Zu den inhärenten Problemen beim Streichen unter Verwendung eines Verfahrens mit nachträglicher Dosierung (Strichgewichtsbestimmung oder besser gesagt: Einstellung eines gewünschten Strichgewichtes z.b. g/m2) gehören jedoch die hohen Wartungs- und damit verbundenen sonstigen Kosten infolge beispielsweise der großen das Papier durchdringenden Streichfarbmenge, und ferner infolge des Verschleißes des Rakelelementes, der beispielsweise durch den Flüssigkeitsdruck und die Druckkräfte verursacht wird, die beim Auftrag der Streichfarbe wirken.In the production of a coated web, in particular coated papers, such as general printing papers for use in catalogs and the like as well as pressure and heat-sensitive papers, a coating color or coating compound is applied to a serving as a base paper base sheet and then dried using a coater. The devices used in the coating application for this purpose are referred to as coating machines. The most popular types of coating machines to date, including doctor, doctor and air knife coater, use a post-weight determination method based on simply applying an excess amount of coating to a web, removing the excess paint by doctor blade stripping , ie a doctor blade or a round dispensing rod or the like, or by blowing off with an air brush or air knife. Among the problems inherent in painting using a post-dosing process (Bar weight determination or rather: setting a desired coating weight zb g / m 2 ), however, include the high maintenance and other associated costs due to, for example, the large amount of coating ink penetrating the paper, and further due to the wear of the doctor element, for example, by the fluid pressure and causing the compressive forces that act when applying the coating color.
Seit einigen Jahren erfolgt deshalb vermehrt der Einsatz von Vorhangstreichmaschinen (sogenannte Curtain Coater), bei denen ein vorhangförmiger Streichmassenfilm von einem Vorhangstreichkopf (aus einer Kammer mit Sprühdüse zur Ausbildung eines Vorhangfilms von Streichfarbe) auf eine laufende Materialbahn abgegeben wird und dort einen Deckstrich bildet. Obwohl Vorhangstreichmaschinen seit vielen Jahren auf dem Gebiet der Fotodruckpapierherstellung verwendet werden, bleiben Vorhangstreichmaschinen in der Papierindustrie infolge des instabilen Strichs noch ungenutzt, was durch die Instabilität des Streichfarbvorhangs infolge von Luftzug, Blaseneinschluss sowie mangelnder mechanischer Präzision bei hohen Betriebsgeschwindigkeiten bedingt ist.For several years, therefore, the use of curtain coater, in which a curtain-shaped coating film from a Vorhangstreichkopf (from a chamber with spray nozzle to form a curtain film of coating color) is delivered to a moving web and there is a cover line is increasingly used. Although curtain coaters have been used in the field of photographic printing paper production for many years, curtain coaters remain unused in the paper industry due to the unstable stroke caused by the instability of the coating curtain due to draft, bubble entrapment and lack of mechanical precision at high operating speeds.
Zu den charakterisierenden Merkmalen von Vorhangstreichmaschinen, gegenüber den mit nachträglicher Gewichtsbestimmung arbeitenden Streichmaschinen nach dem Stand der Technik, gehören vereinfachte Wartung durch Wegfall von Verschleißteilen, wie die von Rakelelementen, einfache hochpräzise Einstellung der Auftragsmenge, verbesserte Betriebsfähigkeit und eine starke Verbesserung der Oberflächeneigenschaften in Bezug auf einen Konturstrich.Among the characterizing features of curtain coaters over the prior art post-pass coating machines are simplified maintenance by eliminating wear parts such as doctor elements, easy high-precision adjustment of the application amount, improved operability, and a large improvement in surface properties a contour line.
Es wurden Versuche unternommen, unter Einsatz dieser Vorhangstreichtechnologie zwei oder mehr Schichten von Streichfarbe auf eine Bahn aufzubringen.
Beim Einsatz von Vorhangstreichmaschinen der dargestellten Art zur Herstellung von Fotofilmen oder ähnlichem, wo die Bahn w mit geringer Laufgeschwindigkeit (beispielsweise 120 m/min) bewegt wird, wird aufgrund der großen Differenz zwischen der Laufgeschwindigkeit des Films und der Fallgeschwindigkeit der Farbvorhänge ca, cb die Auftragsschicht sa gewöhnlich als erste Schicht auf der Filmoberfläche und die Auftragsschicht sb gewöhnlich als zweite Schicht auf der Oberfläche der ersten Auftragsschicht sa ausgebildet.When using curtain coater of the kind shown for producing photo films or the like, where the web w is moved at a low running speed (for example, 120 m / min), the color curtains ca, cb become due to the large difference between the running speed of the film and the falling speed A coating layer is usually formed as a first layer on the film surface, and the coating layer sb is usually formed as a second layer on the surface of the first coating layer sa.
Bei der Anwendung dieser Vorhangstreichvorrichtung bei einer deutlich schneller laufenden Papierbahn w besteht jedoch eine große Differenz zwischen der hohen Bahnlaufgeschwindigkeit von 300 bis 1.800 m/min und der Fallgeschwindigkeit der Streichfarbvorhänge ca, cb, die etwa 180 m/min beträgt. Da in diesem Falle der Streichfarbvorhang ca auf die Oberfläche der Bahn w nass auf trocken auftrifft, ist der dazwischen liegende Reibungskoeffizient groß genug, um die gleichförmige Farbausdehnung über die Oberfläche der Bahn w zu ermöglichen, was wiederum die normale Ausbildung einer gleichförmigen fehlerfreien in erster Schicht aufgetragenen Strichschicht sa ermöglicht. Da andererseits das Auftreffen des Streichfarbvorhangs cb auf die erste Auftragsschicht nass auf nass erfolgt, ist der Reibungskoeffizient zwischen beiden klein und das führt dementsprechend mitunter zur Entstehung von Schlupf und somit, weil keine ordnungsgemäße Ausdehnung entlang der Oberfläche der ersten Auftragsschicht sa ermöglicht wird, zur Ausbildung einer in zweiter Schicht aufgetragenen anormalen Strichschicht sb mit sichtbaren Fehlern.However, when using this curtain coater with a paper web w that is significantly faster moving, there is a large difference between the high web running speed of 300 to 1,800 m / min and the falling speed of the paint curtains ca, cb, which is about 180 m / min. In this case, since the paint curtain c falls wet on the surface of the web w wet, the intervening friction coefficient is large enough to allow the uniform color expansion across the surface of the web w, which in turn provides the normal formation of a uniform defect-free first layer applied coating layer sa allows. On the other hand, since the impact of the coating color curtain cb on the first coating layer is wet on wet, the coefficient of friction between them is small, and thus sometimes leads to the occurrence of slippage and thus to formation because proper expansion along the surface of the first coating layer sa is not enabled an applied in the second layer abnormal coating layer sb with visible errors.
Für das Streichen mit zwei oder mehr Farbschichten ist ein weiteres Verfahren bekannt.
Gemäß dem zitierten Dokument ist bei unterschiedlicher Zusammensetzung der Streichfarben ta, tb die erste Schicht ca des Farbvorhangs breiter als die Bahn w, wobei die andere Schicht cb des Farbvorhangs, die schmaler ist als die Bahn w, nicht über die Bahn w hinausströmt. Da infolge dessen nur ein einschichtiger Flüssigkeitsfilm (Farbvorhang) ca über die Kante der Bahn w hinweg abströmt, kann die überströmende Farbe ta aufgefangen und zur Wiederverwendung für den Auftrag einer Strichschicht gleicher Rezeptur zur Flüssigrohstoffzuführung rückgeführt werden. Zu beachten ist, dass der Farbvorhang während des freien Falls aufgrund von Änderungen in der Oberflächenspannung in der Breite schrumpft. Aus diesem Grund kommt es beim Streichen einer Bahn w, wenn die Breite des Vorhangs gleich der oder kleiner als die Bahnbreite ist, tendenziell dazu, dass die auf die Bahnoberfläche aufgebrachte Auftragsschicht in den seitlichen Randpartien dicker ist und sich infolge dessen eine gleichförmige Dicke der Auftragsschicht schwer erzielen lässt. Entsprechend gilt, dass sich, wenn die Vorhangbreite größer ist als die Bahnbreite und somit der Vorhang über die Bahnränder hinweg abströmt, eine Auftragsschicht gleichförmiger Dicke erzeugen lässt.According to the cited document, with different composition of the coating colors ta, tb the first layer ca of the color curtain is wider than the web w, the other layer cb of the color curtain, which is narrower than the web w, does not flow over the web w. As a result, only a single-layer liquid film (color curtain) flows ca over the edge of the web w away, the overflowing color ta can be collected and recycled for reuse for the application of a coating layer same recipe for liquid feed. Note that during free fall, the color curtain will shrink in width due to changes in surface tension. For this reason, when a web w is wiped, when the width of the curtain is equal to or smaller than the web width, the coat layer applied to the web surface tends to be thicker in the side edge portions and, as a result, a uniform thickness of the coat layer difficult to achieve. Accordingly, if the curtain width is greater than the web width and thus the curtain drains past the web edges, then a coating layer of uniform thickness can be created.
Die mit der Rückgewinnung der Streichfarbe während des Streichens der Bahn w verbundenen Probleme in der im zitierten Dokument offenbarten Streichvorrichtung sind vernachlässigbar. Ein Problem stellt jedoch die Rückgewinnung der Farbe in der Vorbereitungsphase zur Einleitung des Betriebs der Vorrichtung dar. Das heißt, dass generell über einen kurzen Zeitraum vor Einleitung des Streichvorgangs bis zur erfolgten Ausbildung eines stabilen Farbvorhangs Streichfarbe an die Vorhangstreichköpfe geschickt und von diesen ausgebracht wird, während die Bahn sich in einem stationären Zustand befindet. In dieser Phase kommt es zu einer Vermischung der beiden Streichfarben, so dass keine Rückgewinnung möglich ist. Andererseits weist die in
Die Offenlegungsschrift
Die Zweischicht-Vorhangstreichmaschine gemäß dem Stand der Technik weist folgende Probleme auf:
- 1. Schlingern der Bahn bzw. des Papiers
Wird ein Papier, das von einer mit einem Abroller verbundenen Wickelrolle abgewickelt wird, unmittelbar nach dem Abrollen gestrichen, so ist das Schlingerproblem im Wesentlichen vernachlässigbar. Erfolgt jedoch das Streichen eines von einer Wickelrolle abgewickelten Papiers mit einem Streichgang und nachfolgender Trocknung sowie einem weiteren zusätzlichen Streichgang mit erneuter nachfolgender Trocknung, so wird, da die gestrichene Oberfläche vor der Trocknung nicht mit einem Festkörper in Berührung gebracht werden darf, ein Lufttrockner in aufgehängtem Zustand über das Papier geführt und bläst zu dessen Trocknung Heißluft darüber. Das führt dazu, dass das Papier bis zum Zeitpunkt des zweiten Strichs in der fortgesetzten Bewegung einen Seitenversatz erfährt. Dementsprechend ist die Möglichkeit groß, dass bei Auftreten dieses Problems das Papier auf seinem Weg durch die Anlage an den Rändern ungestrichen bleibt. - 2. Dispersion der Auftragsmenge.
In der Fließgeschwindigkeit und Dicke der von den Vorhangstreichköpfen abgegebenen Farbvorhänge kommt es in seitlicher Richtung zu Dispersionsmengen. Die Dispersion der Farbvorhänge zeigt sich als Dispersion der aufgetragenen Menge der Auftragsschicht sa, sb. Bei festen Streichbedingungen (Viskosität und Fließrate) ist diese Dispersion vergleichsweise stabil. Wenn die Spitzen und Täler der Dispersion des einen Farbvorhangs ca mit den Spitzen und Tälern der Dispersion des anderen Farbvorhangs zusammentreffen, wird die Dispersion verstärkt, und wenn die Dispersionsspitzen und -täler nicht zusammentreffen, wird die Dispersion vermindert.
- 1. Rolling the web or paper
If a paper that is unwound from a take-up roll connected to a dispenser is painted immediately after unwinding, the roll-over problem is essentially negligible. However, if the coating of a unwound from a winding roll paper with a Streichgang and subsequent drying and a further additional Streichgang with renewed subsequent drying, it is because the coated surface before drying must not be brought into contact with a solid, an air dryer in suspended Condition passed over the paper and blows over it to dry it. This causes the paper to skew laterally at the time of the second stroke in the continued motion. Accordingly, there is a great possibility that, when this problem occurs, the paper will remain uncoated on its way through the plant at the edges. - 2. Dispersion of the application quantity.
In the flow rate and thickness of the color curtains dispensed by the curtain coaters, dispersion amounts occur laterally. The dispersion of the color curtains shows up as a dispersion of the applied amount of the application layer sa, sb. For solid coating conditions (viscosity and flow rate), this dispersion is comparatively stable. When the peaks and valleys of the dispersion of one color curtain approximate the peaks and valleys of the dispersion of the other color curtain, the dispersion is enhanced, and if the dispersion peaks and valleys do not coincide, the dispersion is reduced.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zum zweischichtigen Vorhang-Auftrag zu schaffen, bei dem bzw. bei der ein Schlingerversatz der Bahn vermieden, zumindest aber gemindert und eine Dispersion der Farbschichten reduziert wird.The present invention has for its object to provide a method and apparatus for two-layer curtain application, in which or avoided in a lane offset of the web, but at least reduced and a dispersion of the color layers is reduced.
Erfindungsgemäß wird die Aufgabe mit einem Verfahren gemäß Anspruch 1 gelöst.According to the invention the object is achieved by a method according to
Erfindungsgemäß ist vorgesehen, ein Versatz-Sensor zur Erkennung des Schlingerversatzes der Bahn und ein Dickenmesser zur Erkennung der auf die Bahn aufgebrachten Auftragsmenge verwendet werden. Dadurch wird die Position eines der beiden Vorhangstreichköpfe in seitlicher Richtung durch vom Versatz-Sensor gelieferte Signale so gesteuert, dass sie dem Schlingerversatz der Bahn entspricht, während die Position des anderen Vorhangstreichkopfes in Bezug zum ersten Vorhangstreichkopf in seitlicher Richtung durch vom Dickenmesser kommende Signale so gesteuert wird, dass eine Dispersion der von den beiden Vorhangstreichköpfen abgegebenen Gesamtauftragsmenge minimiert wird.According to the invention, an offset sensor is used to detect the roll offset of the web and a thickness gauge to detect the amount applied to the web. As a result, the position of one of the two curtain coaters is controlled laterally by signals provided by the offset sensor to match the lane offset of the web, while the position of the other curtain coat head in the lateral direction is controlled by signals from the thickness gauge relative to the first curtain coat head will minimize dispersion of the total amount of application dispensed by the two curtain coats.
Die Erfindung betrifft auch eine Vorrichtung gemäß Anspruch 8.The invention also relates to a device according to claim 8.
Im Streichverfahren der vorliegenden Erfindung, bei dem in einer Streichvorrichtung für den wenigstens zweischichtigen Auftrag von Streichfarbe auf die Oberfläche einer laufenden Bahn mit zwei in beliebigem Abstand zueinander angeordneten Vorhangstreichköpfen, die jeweils Streichfarbe auf ein Führungsblech abgeben, werden erfindungsgemäß die Vorhangstreichköpfe seitlich zur Bahn verschoben und die Breite der von den Vorhangstreichköpfen abgegebenen Streichfarbe größer als die Bahnbreite eingestellt. Außerdem wird mit einem Versatz-Sensor ein Schlingerversatz der Bahn und mit einem Dickenmesser wird die auf die Bahn aufgebrachte Auftragsmenge dedektiert. Ferner wird die Position eines der beiden Vorhangstreichköpfe in seitlicher Richtung durch vom Versatz-Sensor gelieferte Signale so gesteuert, dass sie dem Schlingerversatz der Bahn entspricht, während die Position des anderen Vorhangstreichkopfes in Bezug zum ersten Vorhangstreichkopf in seitlicher Richtung durch vom Dickenmesser kommende Signale so gesteuert wird, dass die Dispersion der von den beiden Vorhangstreichköpfen abgegebenen Gesamtauftragsmenge minimiert wird.In the coating method of the present invention, in which in a coating device for at least two-layer application of coating color on the surface of a moving web with two spaced apart Vorhangstreichköpfen, each leave coating on a guide plate, the curtain coating heads are moved according to the invention laterally to the web and set the width of the coating color dispensed by the curtain coaters greater than the web width. In addition, with an offset sensor, a lolling offset of the web and with a thickness gauge, the applied to the web order amount is dedektiert. Further, the position of one of the two curtain coaters is controlled laterally by signals provided by the offset sensor to correspond to the lane offset of the web, while the position of the other curtain coat head in the lateral direction through the thickness gauge is related to the first curtain coat head Signals are controlled so that the dispersion of the total order amount delivered by the two curtain coaters is minimized.
Die Erfindung hat folgende Vorteile:
- 1. In Anbetracht der Tatsache, dass die Vorhangstreichköpfe in seitlicher Richtung zur Bahn verschiebbar sind und ihre Position in seitlicher Richtung über von einem Versatz-Sensor kommende Signale so gesteuert wird, dass sie dem Schlingerversatz der Bahn entspricht, kann zwischen den Farbvorhängen und der Bahn in seitlicher Richtung eine feste relative Position aufrechterhalten werden und es ist dementsprechend nicht möglich, dass die Seitenränder des durch die Anlage geführten Papiers ungestrichen bleiben.
- 2. Die durch jede kleine Bewegung des einen Vorhangstreichkopfes gegenüber dem anderen Vorhangstreichkopf seitlich zur Bahn bewirkte Verstellung zur Minimierung der Dispersion der vom Dickenmesser erkannten Gesamtauftragsmenge wird größenmäßig festgestellt. Zu beachten ist, dass die Minimaldispersion sich entweder auf die Mindestdifferenz zwischen einem Maximalwert und einem Minimalwert der Auftragsmenge oder auf die Mindest-Standardabweichung eines daraus statistisch gemittelten Durchschnittswertes beziehen kann. Der Auftragsmengendickenmesser, der eine Vorrichtung zur Erkennung des Gewichtsunterschiedes vor und nach dem Streichen sein kann, ist vorzugsweise eine Vorrichtung, die, während ein Fühlerkopf der Vorrichtung die Bahn in seitlicher Richtung abtastet, eine Auftragsmenge in einer bestimmten Position erkennt. Der Fühlerkopf, in dem Vorrichtungen zum Senden und Empfangen von Lichtstrahlung vorgesehen sind, erkennt während des Überfahrens der Bahn den Grad der Strahlungsdämpfung.
- 3. Dadurch dass die getrennt vorgesehenen Vorhangstreichköpfe jeweils Farbrückgewinnungsmittel zur Aufnahme und unabhängigen Rückführung sämtlicher von den Vorhangstreichköpfen abgegebener Streichfarbe aufweisen, kann problemlos vor und nach dem Streichen die Streichfarbe zurückgewonnen und das System mit Wasser gespült werden.
- 1. In view of the fact that the curtain coating heads are displaceable in the lateral direction of the web and their position in the lateral direction is controlled via signals coming from an offset sensor so that it corresponds to the rolling offset of the web, it is possible between the color curtains and the web a fixed relative position is maintained in the lateral direction and, accordingly, it is not possible for the side edges of the paper fed through the system to remain uncoated.
- 2. The amount of adjustment made to minimize the dispersion of the total application amount detected by the thickness gauge, caused by any small movement of one curtain coat head relative to the other curtain coat head, laterally to the web. It should be noted that the minimum dispersion can refer either to the minimum difference between a maximum value and a minimum value of the order quantity or to the minimum standard deviation of a statistically averaged average value. The caliper gauge, which may be a device for detecting the difference in weight before and after brushing, is preferably a device which, while a sensing head of the device scans the web in a lateral direction, detects an application quantity in a certain position. The sensor head, in which devices are provided for transmitting and receiving light radiation, recognizes the degree of radiation attenuation during the passage of the web.
- 3. By having separately provided curtain coaters each having color recovery means for receiving and independently recycling all of the coating color dispensed by the curtain coaters, the coating color can be easily recovered before and after painting and the system rinsed with water.
Zu den vorteilhaften Auswirkungen der Streichvorrichtung und des Streichverfahrens der vorliegenden Erfindung, wie oben beschrieben, gehören beispielsweise die Ermöglichung eines problemlosen Strichs auch bei schlingerbedingtem Papierversatz und darüber hinaus die Minimierung der Auftragsmengendispersion sowie ferner die Ermöglichung problemloser Farbrückgewinnung und Systemspülung mit Wasser vor und nach dem Streichen.For example, the beneficial effects of the coater and coating method of the present invention, as described above, include facilitating a trouble-free stroke even with skew-related paper misalignment and further minimizing the application amount dispersion, as well as allowing for easy color recovery and system rinse with water before and after brushing ,
Weitere vorteilhafte Ausgestaltungen des Verfahrens und der Vorrichtung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the method and the device will become apparent from the dependent claims.
Nachfolgend soll die Erfindung näher beschrieben werden.The invention will be described in more detail below.
- FIG. 1:FIG. 1:
- eine Seitenansicht der Streichvorrichtung der vorliegenden Erfindung;a side view of the coating device of the present invention;
- FIG. 2:FIG. 2:
- eine Draufsicht der Streichvorrichtung der vorliegenden Erfindung;a plan view of the coating device of the present invention;
- FIG. 3a:FIG. 3a:
- eine Teilseitenansicht der Streichvorrichtung der vorliegenden Erfindung mit dem Zustand der Vorrichtung während des Streichvorgangs;a partial side view of the coating device of the present invention with the state of the device during the coating process;
- FIG. 3b:FIG. 3b:
- eine Teilseitenansicht der Streichvorrichtung der vorliegenden Erfindung mit dem Zustand der Vorrichtung während der Streichvorbereitung;a partial side view of the coating device of the present invention with the state of the device during the coating preparation;
- FIG. 4a-4d:FIG. 4a-4d:
- ein Diagramm zur Darstellung der Strichdispersion;a diagram for the representation of the line dispersion;
- FIG. 5a-5c:FIG. 5a-5c:
- eine Tabelle, die die Strichdispersion nummerisch darstellt;a table that numerically represents the stroke dispersion;
- FIG.6:FIG.6:
- ein Hauptteil-Querschnitt der Zweischicht-Vorhangstreichmaschine nach dem Stand der Technik;a major part cross section of the two-layer curtain coater of the prior art;
- FIG.7:FIG.7:
- ein Querschnitt der Zweischicht-Vorhangstreichmaschine nach dema cross section of the two-layer curtain coater after the
Stand der Technik;State of the art;
Die in diesen Figuren verwendeten gleichen Symbole betreffen gleiche Bauteile.The same symbols used in these figures relate to the same components.
Wie in den Figuren dargestellt, handelt es sich bei der erfindungsgemäßen Streichvorrichtung 1 im Beispiel um eine Streichvorrichtung für den zweischichtigen Auftrag von Streichfarben auf eine laufende Bahn w. Die Streichvorrichtung 1 beinhaltet zwei in beliebigem Abstand zueinander angeordnete Vorhangstreichköpfe 1a, 1b für die nach unten gerichtete Abgabe von entsprechenden Streichfarben. Das Symbol 2 bezieht sich auf ein Führungsblech. Auf dem Führungsblech 2 laminieren die von den beiden vorgenannten Vorhangstreichköpfen 1a, 1b nach unten in Richtung einer schiefen Ebene 2a nacheinander ausgebrachten Streichfarben so, dass sie im Zuge ihrer Bewegung über die schiefe Ebene 2a eine zweischichtige Farbschicht ausbilden. Die besagte Farbschicht wird dazu als Vorhang, der aus den Farbvorhängen ca und cb besteht, über ein am unteren Ende der besagten schiefen Ebene 2a befindliches nach unten zeigende Vorhang- Führungsteil 2b hinunter auf die Oberfläche der Bahn w gelenkt und bildet eine gleichmäßige Strichschicht s, die aus den einzelnen Schichten sa und sb besteht, auf der Bahn w aus.As shown in the figures, the
Im gewählten Beispiel haben die Streichfarben ta und tb die gleiche Zusammensetzung, die Farbvorhänge ca, cb sind breiter als die Bahn w. Wie in
Die Vorhangstreichköpfe 1a, 1b sind allerdings in seitlicher Richtung der Bahn w verschiebbar wie in
Das Symbol 7 bezeichnet einen Dickenmesser zur Erkennung der Auftragsmenge auf die Bahn w. Der Auftragsmengendickenmesser 7 weist einen Dickenmesser 7a zur Erkennung des Gewichts der Bahn w vor dem Streichen, einen Dickenmesser 7b zur Erkennung des Gewichts der Bahn w nach dem Streichen auf. Außerdem ist ein Rechner 8 zur Berechnung der entsprechenden Gewichtsdifferenz konfiguriert, wobei das vom Rechner 8 ausgegebene Ergebnis die Auftragsmenge ausdrückt. Der Dickenmesser 7 erkennt, während ein Fühlerkopf des Dickenmessers die Bahn in seitlicher Richtung abtastet, die Auftragsmenge in einer bestimmten Position. Der Fühlerkopf, in dem Vorrichtungen zum Senden und Empfangen von Lichtstrahlung vorgesehen sind, erkennt während des Überfahrens der Bahn den Grad der Strahlungsdämpfung.
Der Versatz-Sensor 6 sendet Signale an ein Steuergerät 10 und dieses sendet Steuersignale an die Stellglieder 11a, 11b der Vorhangstreichköpfe 1a, 1b, um die Position der Vorhangstreichköpfe 1a, 1b in seitlicher Richtung so zu ändern, dass sie dem Schlingerversatz der Bahn entsprechen.The offset sensor 6 sends signals to a
Die Ausgabe des Rechners 8 wird an ein Steuergerät 9 gesendet und dieses sendet Steuersignale an ein Stellglied 11b des Vorhangstreichkopfes 1b. Das bedeutet, dass das Stellglied 11b ausgehend von Steuersignalen, die es vom Steuergerät 10 empfängt, sowie von Steuersignalen, die es vom Steuergerät 9 empfängt, eine Verstellung der relativen Position des Vorhangstreichkopfes 1b zum Vorhangstreichkopf 1a bewirkt. Der Betrag dieser Verstellung wird so gesteuert, dass die Gesamtdispersion der von den beiden Vorhangstreichköpfen 1a, 1b aufgetragenen Menge minimiert wird.The output of the computer 8 is sent to a controller 9 and this sends control signals to an actuator 11b of the
Die Steuerung der Dispersion der Gesamtauftragsmenge auf ein Minimum beruht auf einem im Steuergerät 9 installierten Programm zur Feststellung der Verstellmenge, bei welcher die Dispersion der vom Dickenmesser erkannten Gesamtauftragsmenge, verursacht durch jede kleine seitlich zur Bahn erfolgende Bewegung des einen Vorhangstreichkopfes gegenüber dem anderen Vorhangstreichkopf, ein Minimum ist, und auf den Eingang von vom Rechner 8 kommenden Signalen in das Programm, welches in Reaktion darauf die Ausgabe des Rechners 9 ermittelt. Darüber hinaus kann durch das Anhalten eines der beiden Vorhangstreichköpfe 1a, 1b und die Realisierung eines jeweils unabhängigen Strichs der jeweilige Dispersionszustand erkannt werden, wonach auf Grundlage einer entsprechenden Berechnung die optimale Verstellung berechnet werden kann.The control of the dispersion of the total amount of application to a minimum is based on an adjustment amount program installed in the control unit 9, wherein the dispersion of the total application amount detected by the thickness gauge caused by any small side-to-side movement of the one curtain coat head over the other curtain coat head Is minimum, and the input of coming from the computer 8 signals in the program, which determines the output of the computer 9 in response thereto. In addition, by stopping one of the two curtain coating heads 1a, 1b and the realization of a respective independent stroke, the respective state of dispersion can be recognized, after which the optimum adjustment can be calculated on the basis of a corresponding calculation.
In
Dadurch dass die Vorhangstreichköpfe 1a, 1b seitlich zur Bahn w verschiebbar sind und ihre Position in seitlicher Richtung zur Bahn w über vom Versatz-Sensor 6 kommende Signale so gesteuert wird, dass sie dem Bahnversatz entspricht, kann zwischen den Farbvorhängen ca, cb und der Bahn w in seitlicher Richtung eine feste relative Position konstant aufrechterhalten werden und es ist dementsprechend nicht möglich, dass die Seitenränder des durch die Anlage geführten Papiers ungestrichen bleiben. Die durch jede kleine Bewegung des einen Vorhangstreichkopfes 1b gegenüber dem anderen Vorhangstreichkopf 1a seitlich zur Bahn w bewirkte Verstellung zur Minimierung der Dispersion der vom Dickenmesser 7 erkannten Gesamtauftragsmenge wird größenmäßig festgestellt. Die beiden getrennt vorgesehenen Vorhangstreichköpfe 1a, 1b weisen wie schon beschrieben Farbrückgewinnungsmittel 4a, 4b zur Aufnahme und unabhängigen Rückführung der gesamten von den Vorhangstreichköpfen 1a, 1b abgegebenen Streichfarbe auf. Dadurch kann problemlos vor und nach dem Streichen die Streichfarbe zurückgewonnen und das System mit Wasser gespült werden.The fact that the
Es folgt eine spezifische Beschreibung der Dispersion der Auftragsmenge.The following is a specific description of the dispersion of the application amount.
Die vorliegende Erfindung ist nicht auf die oben beschriebene Ausführungsform beschränkt und entsprechend können eine Reihe von Änderungen an ihr vorgenommen werden. Beispielsweise wird zwar in der obigen Beschreibung des Erkennens der vor und nach dem Strich vorliegenden Bahngewichtsdifferenz ein Dickenmesser zur Bestimmung der Gesamtauftragsmenge eingesetzt, aber wenn eine Vorrichtung verwendet wird, die das Gewicht der spezifischen Komponenten innerhalb der Farbe erkennt, muss nur ein einzelner Dickenmesser nach dem Strichauftrag eingesetzt werden.The present invention is not limited to the embodiment described above, and accordingly a number of changes can be made to it. For example, in the above description of recognizing the web weight difference before and after the stroke, although a thickness gauge is used to determine the total application amount, if a device that recognizes the weight of the specific components within the paint is used, only a single thickness gauge needs to be used Line application be used.
- 11
- Streichvorrichtungcoater
- 1a1a
- VorhangstreichkopfCurtain coating head
- 1b1b
- VorhangstreichkopfCurtain coating head
- 22
- Führungsblechguide plate
- 2a2a
- schiefe Ebeneinclined plane
- 2b2 B
- Vorhang-FührungsteilCurtain guide part
- 33
- Farbwannepaint tray
- 4a4a
- Farbrückgewinnungsmittel (Farbwanne)Color recovery agent (ink tray)
- 4b4b
- Farbrückgewinnungsmittel (Farbwanne)Color recovery agent (ink tray)
- 55
- Schiebeteilsliding part
- 5a5a
- Schienerail
- 5b5b
- Anhängeteilattachments part
- 66
- Schlingerversatz-SensorSnaking offset sensor
- 77
- Dickenmesserthickness Gauge
- 7a7a
- Dickenmesser vor dem StreichenThickness gauge before painting
- 7b7b
- Dickenmesser nach dem StreichenThickness gauge after painting
- 88th
- Rechnercomputer
- 99
- Steuergerätcontrol unit
- 1010
- Steuergerätcontrol unit
- 1111
- Stellgliedactuator
- 11a11a
- Stellgliedactuator
- 11b11b
- Stellgliedactuator
- caca
- Farbvorhangcolor Blind
- cbcb
- Farbvorhangcolor Blind
- ss
- Auftragsschichtapplication layer
- saSat.
- erste Schichtfirst shift
- sbsb
- zweite Schichtsecond layer
- ww
- Bahn (Papier)Railway (paper)
- xx
- Abstanddistance
- yy
- Betrag für VerstellungAmount for adjustment
Claims (13)
- Method for applying two layers of coating colour to the surface of a moving web (w), in particular a paper or board web, by using a coating apparatus (1) in which, for the application of two layers of coating colour, two curtain coating heads (1a, 1b) are provided at an arbitrary distance from each other, which in each case discharge coating colour downwards and, on a guide plate (2) the respective coating colours discharged downwards one after another in the direction of an inclined plane (2a) of the guide plate (2) from the aforementioned curtain coating heads being laminated in the course of their movement over the inclined plane, forming a two-layer colour layer, and the aforesaid colour layers being discharged onto the surface of the moving web (w) in the form of a colour curtain (ca, cb),
characterized in that
an offset sensor (6) is used to detect a snaking offset of the web (w), and a thickness gauge (7) is used to detect the amount of application applied to the web (w), the position of one of the curtain coating heads in the lateral direction being controlled by means of signals supplied by the offset sensor (6) in such a way that the said position corresponds to the snaking offset of the web (w), and the position of the other curtain coating head in the lateral direction in relation to the first curtain coating head is controlled by signals coming from the thickness gauge (7) such that the dispersion of the overall amount of application discharged from the curtain coating heads is minimised and, to this end, the curtain coating heads (1a ; 1b) are displaced laterally with respect to the web (w). - Method according to Claim 1,
characterized in that
the colour curtain arising from the individual curtains (ca; cb) is deflected downwards onto the surface of the web (w) via a curtain guide (2b) located at the lower end of the inclined plane (2a) and pointing downwards, and forms a uniform layer of coating (s) on the said surface. - Method according to Claim 1 or 2,
characterized in that
the width of the coating colour discharged by the curtain coating heads (1a; 1b) is set to be larger than the web is wide. - Method according to Claim 2,
characterized in that
the sections of the colour curtains (ca, cb) from the curtain coating heads (1a, 1b) that flow over the edges of the web on both sides during the coating of the web (w) are caught in a colour trough (3). - Method according to Claim 1,
characterized in that
all the coating colour discharged by the curtain coating heads (1a, 1b) is caught and fed back independently from each other before coating the web (w). - Method according to Claims 1 to 5,
characterized in that
by using the thickness gauge (7), the web (w) is sensed in the lateral direction, a first thickness gauge (7a) detecting the weight of the web (w) before the coating and a second thickness gauge (7b) detecting the weight of the web (w) after the coating and forwarding them to a computer (8), which forms a weight difference and therefore determines the result of the amount applied. - Method according to Claims 1 to 6,
characterized in that
the offset sensor (6) reports signals to a control device (10), and the control device (10) outputs control signals to an actuating element (11), and the result from the computer (8) via a control device (9) likewise forms control signals for the actuating element (11), by which means the curtain coating heads (1a, 1b) are displaced laterally with respect to the web (w). - Apparatus (1) for applying two layers of coating colour to the surface of a moving web (w), in particular a paper or board web, having:- two curtain coating heads (1a, 1b) arranged at an arbitrary distance from each other, which in each case discharge coating colour downwards onto the web (w)- a guide plate (2), on which the respective coating colours discharged downwards one after another in the direction of an inclined plane (2a) from the aforementioned two curtain coating heads (1a, 1b) are laminated in the course of their movement over the inclined plane (2a), forming a two-layer colour layer,characterized in that
the curtain coating heads (1a, 1b) can be displaced laterally with respect to the web (w), an offset sensor (6) being provided to detect a snaking offset of the web (w) and a thickness gauge (7) being provided to detect the amount of application to the web (w) to adjust the position of the curtain coating heads (1a, 1b) in the lateral direction. - Apparatus according to Claim 8,
characterized in that
a curtain guide part (2b) pointing downwards is provided at the lower end of the aforesaid inclined plane (2a) in order to lead away the laminated colour layer in the form of a colour curtain (ca, cb). - Apparatus according to Claim 8 or 9,
characterized in that
means (4a, 4b) are provided to catch and to feed back the coating colour discharged by the curtain coating heads (1a, 1b). - Apparatus according to Claims 8 to 10,
characterized in that
the curtain coating heads (1a, 1b) each have a sliding part (5) having a rail (5a) and a suspension part (5b) engaging in the rail (5a). - Apparatus according to Claims 8 to 11,
characterized in that
a sliding part (5) can be driven by an actuating element (11), the actuating element (11) receiving signals from the snaking offset sensor (6) and the thickness gauge (7) via a control device (9, 10). - Apparatus according to Claims 8 to 12,
characterized in that
a first thickness gauge (7a) is provided to register the weight of the web (w) before the coating, and a second thickness gauge (7b) is provided to register the weight of the web (w) after the coating, and a computer (8) is also provided, which forms a weight difference and therefore determines the result of the amount of application.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005318581A JP4902983B2 (en) | 2005-11-01 | 2005-11-01 | Coating apparatus and coating method |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1779935A2 EP1779935A2 (en) | 2007-05-02 |
EP1779935A3 EP1779935A3 (en) | 2008-06-18 |
EP1779935B1 true EP1779935B1 (en) | 2011-03-02 |
Family
ID=37686294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06122978A Not-in-force EP1779935B1 (en) | 2005-11-01 | 2006-10-26 | Coating apparatus and method |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1779935B1 (en) |
JP (1) | JP4902983B2 (en) |
AT (1) | ATE500000T1 (en) |
DE (1) | DE502006008985D1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007000778A1 (en) * | 2007-09-27 | 2009-04-02 | Voith Patent Gmbh | Application device and method for operating an application device |
DE202011001109U1 (en) * | 2011-01-07 | 2011-03-17 | Basf Se | Apparatus for applying liquid reaction mixtures to a cover layer |
JP5756313B2 (en) * | 2011-03-25 | 2015-07-29 | 住友化学株式会社 | Manufacturing method of polarizing plate |
CN107405924B (en) * | 2015-04-14 | 2020-05-12 | 惠普深蓝有限责任公司 | Apparatus and method for applying fluid in printing system and printing system |
CN111013906B (en) * | 2020-01-13 | 2020-11-10 | 吉林建筑大学 | Production spraying device based on building energy-saving plate |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1321474A (en) * | 1970-10-19 | 1973-06-27 | British Iron Steel Research | Method and apparatus for guiding sheet |
DE2351369C2 (en) * | 1973-10-12 | 1983-05-11 | CIBA-GEIGY AG, 4002 Basel | Coating device |
EP0003860B1 (en) * | 1978-03-01 | 1982-03-24 | Agfa-Gevaert N.V. | Method for applying a plurality of superposed photographic layers to a web by curtain coating |
JPS6247075A (en) | 1985-08-26 | 1987-02-28 | Matsushita Electric Ind Co Ltd | Method and device for developing electrostatic latent image |
DE19631888A1 (en) * | 1996-08-07 | 1998-02-12 | Voith Sulzer Papiermasch Gmbh | Applicator for direct or indirect application of a liquid or pasty coating medium to a running material web, in particular made of paper or cardboard |
DE10057729A1 (en) * | 2000-11-22 | 2002-05-23 | Voith Paper Patent Gmbh | Web coating station, has two applicators, to deliver the coatings as falling curtains, with different coating media and a structured gap between the strike points of each at the moving substrate for the overlaid layers |
DE10057734A1 (en) * | 2000-11-22 | 2002-05-23 | Voith Paper Patent Gmbh | Web curtain coating station, especially using a pigment suspension, has a guide in the free fall path of the coating to divide the path into two sections and reduce distorting effects on the laid coating at the moving substrate surface |
US6706315B2 (en) * | 2001-09-17 | 2004-03-16 | Xerox Corporation | Coating process for coating die with laser position sensors |
JP2003241405A (en) * | 2001-12-12 | 2003-08-27 | Xerox Corp | Process for coating photoconductor |
DE10320146A1 (en) * | 2003-05-06 | 2004-11-25 | Voith Paper Patent Gmbh | Multi-layer application device for applying application medium by means of at least one multi-layer curtain or veil |
JP2005230683A (en) * | 2004-02-19 | 2005-09-02 | Nippon Steel Corp | Manufacturing method for precoated steel sheet and coating apparatus for steel sheet |
JP4746894B2 (en) * | 2005-03-14 | 2011-08-10 | ボイス ペ−パ− パテント ゲ−エムベ−ハ− | Coating equipment |
JP4902160B2 (en) * | 2005-09-22 | 2012-03-21 | ボイス ペ−パ− パテント ゲ−エムベ−ハ− | Coating equipment |
-
2005
- 2005-11-01 JP JP2005318581A patent/JP4902983B2/en not_active Expired - Fee Related
-
2006
- 2006-10-26 DE DE502006008985T patent/DE502006008985D1/en active Active
- 2006-10-26 AT AT06122978T patent/ATE500000T1/en active
- 2006-10-26 EP EP06122978A patent/EP1779935B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1779935A3 (en) | 2008-06-18 |
EP1779935A2 (en) | 2007-05-02 |
DE502006008985D1 (en) | 2011-04-14 |
JP2007125463A (en) | 2007-05-24 |
ATE500000T1 (en) | 2011-03-15 |
JP4902983B2 (en) | 2012-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1861207B1 (en) | Application device | |
DE69323438T2 (en) | METHOD AND DEVICE FOR COATING PAPER AND THE LIKE | |
EP1779935B1 (en) | Coating apparatus and method | |
EP2379807A1 (en) | Method for the multiple coating of a fibrous web, in particular a movable cardboard web, and apparatus for treating and/or converting fibrous webs, in particular for the multiple-layer application of liquid or pasty application media | |
EP1782891B1 (en) | Method of and apparatus for deposition of at least two layers of coating colour onto the surface of a moving web, in particular a paper or cardboard web | |
DE102006057870A1 (en) | Multilevel application of liquid or pasty medium on a moving paper-, cardboard- or other fibrous material web, comprises applying a film of a first application medium by a nozzle applicator and a further film of a second application medium | |
EP2992142B1 (en) | Method for producing a printable single or multi-layered material web as well as an associated installation for producing such a material web | |
EP1050622A2 (en) | Application device and process for a papermaking machine | |
EP2146003A2 (en) | Curtain application device | |
WO2006094854A1 (en) | Curtain application unit | |
EP1767282A2 (en) | Coating device | |
EP2396121A1 (en) | Curtain application unit | |
WO2009043700A2 (en) | Application device, and method for the operation of an application device | |
DE3407255A1 (en) | DEVICE FOR OPTIONALLY SINGLE OR DOUBLE-SIDED COATING OF A RUNNING PAPER, AND METHOD FOR USING THE DEVICE | |
EP1760195B1 (en) | Apparatus and process for coating a fibrous web | |
EP1749585A2 (en) | Method of applying a coating | |
DE102007033937A1 (en) | Coating of both web sides of continuous fibrous web made of paper/cardboard with liquid to pasty medium, comprises coating the fibrous web on the web side such as lower surface using curtain applicator for the formation of lower coat | |
EP2014376A2 (en) | Curtain coating machine | |
EP2017012A2 (en) | Curtain coating machine | |
EP2596171B1 (en) | Curtain applicator | |
EP2067531A2 (en) | Edge guide | |
DE102008040405A1 (en) | Curtain-coating unit for coating a moving paper, cardboard or other fiber web with fluid to pasty coating medium, comprises a curtain coating head arranged above the fiber material web for obtaining single or multi-layered curtain | |
EP2852705B1 (en) | Cascade nozzle for applying a plurality of layers | |
DE102008040409A1 (en) | Curtain-coating unit for coating a moving paper, cardboard or other fiber web with fluid to pasty coating medium in the form of one or more layered curtain, comprises a curtain coating head arranged over the fiber material web | |
DE102006040684A1 (en) | Operation of in-line, multiple-coating equipment used in paper or card manufacture, replaces coating medium with water during start up or reinstatement |
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 BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
17P | Request for examination filed |
Effective date: 20081218 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 502006008985 Country of ref document: DE Date of ref document: 20110414 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502006008985 Country of ref document: DE Effective date: 20110414 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20110302 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110613 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110603 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20110302 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110602 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110704 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110702 |
|
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 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20111024 Year of fee payment: 6 Ref country code: FI Payment date: 20111013 Year of fee payment: 6 |
|
26N | No opposition filed |
Effective date: 20111205 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502006008985 Country of ref document: DE Effective date: 20111205 |
|
BERE | Be: lapsed |
Owner name: VOITH PATENT G.M.B.H. Effective date: 20111031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111031 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20111026 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20120629 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111031 |
|
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: 20111026 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111102 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111026 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 500000 Country of ref document: AT Kind code of ref document: T Effective date: 20121026 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121031 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121026 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130501 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121031 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502006008985 Country of ref document: DE Effective date: 20130501 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121026 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110302 |