EP1088595A2 - Device for applying an abrasive substance onto a moving web - Google Patents

Device for applying an abrasive substance onto a moving web Download PDF

Info

Publication number
EP1088595A2
EP1088595A2 EP00116909A EP00116909A EP1088595A2 EP 1088595 A2 EP1088595 A2 EP 1088595A2 EP 00116909 A EP00116909 A EP 00116909A EP 00116909 A EP00116909 A EP 00116909A EP 1088595 A2 EP1088595 A2 EP 1088595A2
Authority
EP
European Patent Office
Prior art keywords
roller
paper web
leveling
metering
deflection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00116909A
Other languages
German (de)
French (fr)
Other versions
EP1088595B1 (en
EP1088595A3 (en
Inventor
Gisbert Krossa
Walter Müller
Ernst Klas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VITS VERWALTUNGS GMBH
Original Assignee
Vits Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vits Maschinenbau GmbH filed Critical Vits Maschinenbau GmbH
Publication of EP1088595A2 publication Critical patent/EP1088595A2/en
Publication of EP1088595A3 publication Critical patent/EP1088595A3/en
Application granted granted Critical
Publication of EP1088595B1 publication Critical patent/EP1088595B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H25/00After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/12Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02Apparatus 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
    • B05C11/023Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
    • B05C11/025Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0245Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H23/00Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22Addition to the formed paper
    • D21H23/70Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
    • D21H23/72Plural serial stages only
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18Paper- or board-based structures for surface covering
    • D21H27/22Structures being applied on the surface by special manufacturing processes, e.g. in presses
    • D21H27/26Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
    • D21H27/28Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures treated to obtain specific resistance properties, e.g. against wear or weather

Definitions

  • the invention relates to a device for applying a liquid resin and fine-grained abrasive material, especially corundum, existing Coating compound on a continuous paper web, which is used for the manufacture of abrasion-resistant laminates is determined, according to the preamble of Claim 1.
  • DE 195 08 797 C1 describes a process for the production of decorative paper for use in the production of abrasion-resistant laminates.
  • a viscous mixture of melamine resin and alpha-cellulose, to which corundum particles have been added, is applied as a coating material to the visible surface of a decorative paper.
  • the alpha cellulose serves as a stiffening and suspending agent.
  • the corundum particles have a grain size of 15 - 50 ⁇ m.
  • the amount applied is 80-200 g / m 2 , so that a layer thickness of 20-65 ⁇ m results after the final moisture has been reached.
  • the coating compound should be applied using a wire doctor, a reverse coating system or an anilox roller.
  • a leveling device namely a doctor blade consisting of a substantially rectangular tab Made of a flexible rubber-like material attached to its back, to the Axes of the two rollers parallel edge fixed on one side to a holding bar is and slack on the upper run of the deflecting roller Paper web rests.
  • the invention has for its object a device according to the preamble of claim 1 to develop further, so that they are difficult to use processable coating compositions evenly coated papers without provides visible stripes.
  • the leveling device comprises at least one structural roller, the enveloping surface of which has a thread-like structure.
  • a paper web 1 that has already been pre-impregnated with resin is if necessary, has already dried in the horizontal direction Deflection roller 2 supplied. It wraps around the deflection roller 2 in the area of a Arc of 180 °, which is approximately in the six o'clock position through the stop line 3 and in the Zwölschreib position is limited by drain line 4. Then the runs Paper web 1 in the horizontal direction, as symbolized by arrow 5 a dryer, not shown.
  • a metering roller 6 with a smooth outer surface arranged. It has the same in the illustrated embodiment Diameter as the deflection roller 2.
  • the axes of the deflection roller 2 and Metering roller 6 are parallel to each other at the same height in a, not shown Machine frame stored.
  • the storage of one of the two rollers 2, 6 is in slidable horizontally so that the width of the between the two Rolls 2, 6 existing narrow gap is variable.
  • the metering roller 6 is as well as the deflection roller 2 provided with a drive.
  • the drives of the two Rollers 2, 6 are mechanically or electrically coupled, so that the rollers 2, 6 circulate synchronously or approximately synchronously, that is preferably with coinciding surface speed, which is the conveying speed of the Paper web corresponds.
  • a slot nozzle 7 for applying the Coating compound Under the deflection roller 2 is a slot nozzle 7 for applying the Coating compound arranged.
  • the slot nozzle 7 is the ramp line 3 adjacent.
  • a leveling device 8 At a short distance from the drain line 4 is above the running upper run Paper web 1 arranged a leveling device 8. It comprises a structure roller 9 and a smooth roller 10, which is behind the structure roller 9 in the web running direction is arranged.
  • the structure roller 9 and the smooth roller 10 are adjustable in height, so that their distances from the paper web 1 are variable.
  • a support roller 11 In a short distance, which corresponds approximately to the distance of the roller 10 from the run-up line 4 is in the direction of the arrow 5 behind the leveling device 8 under the paper web 1 a support roller 11 arranged.
  • the enveloping surface of the structure roller 9 has a thread-like structure.
  • the in Figure 5 The illustrated structural roller has a helical groove 12 provided, which essentially correspond to the working width over the whole Length of the structural roller 9 extends.
  • the one between neighboring corridors remaining web 13 is rectangular in section and has approximately the same width as the groove 12.
  • the envelope surface therefore has the structure of a single thread.
  • the structure roller illustrated in FIG. 6 differs from this in that that they have a multi-start, namely with a three-start thread is provided. As a result, the cross-section of the grooves and webs remains unchanged Pitch increased accordingly, as well as the pitch angle.
  • the structure roller illustrated in FIG. 7 is with a system of helical grooves of the same pitch with opposite Screw sense provided.
  • the system comprises three right-handed and three left-handed grooves.
  • the left-hand grooves correspond to those in FIG. 6 illustrated grooves. Due to the intersecting grooves, the roller becomes a flat relief of diamond-shaped islands 14, reminiscent of a tile covering worked out, whose one diagonal is parallel to the roller axis. The second diagonal is at right angles to it.
  • the paper web 1 runs with one in operation Speed between about 10 and 70 m / min, preferably between 20 and 50 m / min through.
  • Coating compound which consists of liquid resin and fine corundum particles suspended in it Excess applied directly to the paper web.
  • the layer thus formed is in split the narrow gap between the deflection roller 2 and the metering roller 6, so that part of the coating compound sticks to the paper, the other part is carried by the metering roller 6. Excess coating mass is in stuck in the gap and drips. Because the surface speeds of the two Rollers 2, 6 have the same direction and preferably at least approximately are the same size, cause the abrasives contained in the coating material Particles no significant wear on the metering roller 6.
  • the layer ⁇ adhering to the paper web on average about 30 to 100 g / m 2 - is initially uneven, so that longitudinal stripes are clearly visible.
  • the stripes can be explained by the fact that the liquid coating composition tends to contract due to the surface tension when the layer is split up in the nip due to the fact that it contracts at certain points, more or less evenly distributed over the width.
  • the profile of the layer adhering to the paper web has maxima, which appear as narrow strips.
  • the width of a strip is usually around 5 mm.
  • the distance between two adjacent strips is usually between about 10 and 30 mm.
  • the unwanted stripe pattern sometimes changes in an unpredictable way.
  • the structure roller 9 is set so that it touches the paper web.
  • the quick rotating structure roller 9 in the embodiment according to FIG. 5 or FIG. 6 exercises ⁇ mit comparable to a snail - the one accumulated in the strips Coating composition in the direction of its axis, that is to say transversely to the paper web 1 promoting effect.
  • the prerequisite is, of course, that the Surface speed of the structural roller 9 in the engagement area considerably the speed at which the paper web 1 deviates in the direction of the arrow 5 deviates emotional.
  • the one-sided promotional effect the other edge of the paper web. Through the promotional effect thickened strips blurred in the transverse direction, so to speak.
  • the structure roller 9 therefore has only a comparative effect, but no influence on the dosage. Out For this reason, the structure roller 9 is different than the metering roller 6- does not depend on extreme dimensional accuracy. There is hardly any wear Influence on the effectiveness of the structural roller 9. Therefore, the structural roller causes 9 not particularly high costs.
  • the downstream smooth roller 10 which is also at high speed rotates, causes a further equalization.
  • a roller can also be used as the structural roller 9 can be used, the envelope surface has the structure illustrated in Figure 7.
  • the coating material accumulated in the strips is separated by the ⁇ in Direction of surface speed seen- front, in relation to the Surface velocity of oblique-angled edges of diamond-shaped islands 14 partly removed to one side and partly to the other side. This will make one even distribution achieved.
  • the exemplary embodiment illustrated in FIG. 2 is characterized in particular by that the leveling device 8 two structure rollers 9, 9a arranged one behind the other includes. Another difference is that the slot nozzle 7 of Dosing roller 6 is assigned.
  • the leveling device comprises a Doctor blade 15, which is arranged in the web run in front of the structural roller 9. It exists from a substantially rectangular tab 16 made of flexible, rubber-like Material on its rear edge parallel to the axis of the structural roller 9 is attached on one side to a retaining bar 17 and slack on the by the Deflection roller 2 running upper strand of the paper web 1 rests. Rag 16 already causes a certain amount of pre-legalization.
  • This also differs Embodiment according to Figure 3 of the previously discussed embodiments in that the metering roller 6 is assigned a similar doctor blade 18.
  • the associated holding bar 19 is arranged obliquely above the metering roller 6, namely on the side facing away from the deflection roller 2.
  • FIG. 3 a differs from that of Figure 3 in that the doctor blade 15 formerly seen in the direction of travel - behind the Structural roller 9 is arranged so that the tab 16 on the support roller 11 the paper web 1 rests. Any oblique lines that are still visible behind the structural roller 9 running strips are smoothed by the tab 16.
  • the metering roller 6 is almost vertical ⁇ About the deflection roller 2 in the Elzen position. Therefore goes through the paper web between dosing and leveling only a relatively short distance and only requires a correspondingly short time interval. That has, like attempts have shown a positive influence on the equalization.

Abstract

The coating levelling device (8) comprises at least one textured roll (9) with a threaded mantle. The coating station contains a guide roll (2) around which the paper web (1) is passed, and which forms a nip with a parallel dosing roll (6). A slit nozzle (7) applies the coating material to the dosing roll or to the web on the guide roll.

Description

Die Erfindung betrifft eine Vorrichtung zum Auftragen einer aus flüssigem Harz und feinkörnigem abrasiven Material, insbesondere Korund, bestehenden Beschichtungsmasse auf eine durchlaufende Papierbahn, die zur Verwendung bei der Herstellung abriebfester Laminate bestimmt ist, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for applying a liquid resin and fine-grained abrasive material, especially corundum, existing Coating compound on a continuous paper web, which is used for the manufacture of abrasion-resistant laminates is determined, according to the preamble of Claim 1.

Die DE 195 08 797 C1 beschreibt ein Verfahren zur Herstellung von Dekorpapier zur Verwendung bei der Herstellung von abriebfesten Laminaten. Dabei wird ein viskoses Gemisch aus Melaminharz und Alpha-Cellulose, dem Korundpartikel zugesetzt sind, als Beschichtungsmasse auf die Sichtfläche eines Dekorpapiers aufgetragen. Die Alpha-Cellulose dient dabei als Versteifungs- und Suspendierungsmittel. Die Korundpartikel haben eine Korngröße von 15 ― 50 µm. Die Auftragmenge beträgt 80 ― 200 g/m2, so daß sich nach Erreichen der Endfeuchte eine Schichtdicke von 20 ― 65 µm ergibt. Die Beschichtungsmasse soll mittels eines Drahtrakels, eines Reverse Coating Systems oder einer Rasterwalze aufgetragen werden.DE 195 08 797 C1 describes a process for the production of decorative paper for use in the production of abrasion-resistant laminates. A viscous mixture of melamine resin and alpha-cellulose, to which corundum particles have been added, is applied as a coating material to the visible surface of a decorative paper. The alpha cellulose serves as a stiffening and suspending agent. The corundum particles have a grain size of 15 - 50 µm. The amount applied is 80-200 g / m 2 , so that a layer thickness of 20-65 µm results after the final moisture has been reached. The coating compound should be applied using a wire doctor, a reverse coating system or an anilox roller.

In der DE 198 14 212 C1 wird eine Vorrichtung beschrieben, die speziell zum Auftragen einer derartigen Beschichtungsmasse bestimmt ist. Auf dieser Vorrichtung, die sich schon seit einiger Zeit im großtechnischen Maßstab bewährt hat, baut die Erfindung auf. Bei der bekannten Vorrichtung ist die Dosierwalze mit der Umlenkwalze synchronisiert, so daß die Oberflächengeschwindigkeiten der beiden Walzen am Dosierspalt nach Größe und Richtung übereinstimmen. Zwischen der Dosierwalze und der an der Papierbahn anhaftenden Beschichtungsmasse besteht daher keine Relativgeschwindigkeit. Auf diese Weise wird der Verschleiß der Dosierwalze durch die in der Beschichtungsmasse enthaltenen abrasiven Partikel so klein wie möglich gehalten. Man entnimmt aber der Schrift, daß der Gleichlauf der beiden Walzen ein anderes Problem verursacht: In dem engen Spalt zwischen Dosierwalze und Umlenkwalze wird die an der Papierbahn bereits anhaftende Schicht ―anders als bei einer gegenläufigen Dosierwalze- gespalten, so daß ein Teil der Beschichtungsmasse an der Papierbahn haften bleibt, ein anderer Teil von der Dosierwalze mitgeführt wird. Nachdem die Papierbahn den Walzenspalt durchlaufen hat, ist die anhaftende Schicht zunächst noch ungleichmäßig, so daß Längsstreifen deutlich sichtbar sind. Um dieses Streifenmuster zu beseitigen, ist eine Egalisiereinrichtung vorgesehen, und zwar ein Rakel, bestehend aus einem im wesentlichen rechteckigen Lappen aus einem flexiblen gummiartigen Material, der an seiner rückwärtigen, zu den Achsen der beiden Walzen parallelen Kante einseitig an einer Halteleiste befestigt ist und schlaff auf dem von der Umlenkwalze ablaufenden oberen Trum der Papierbahn aufliegt.DE 198 14 212 C1 describes a device that is specifically designed for Application of such a coating composition is determined. On this Device that has proven itself on an industrial scale for some time the invention builds up. In the known device, the metering roller is included the deflection roller synchronized so that the surface speeds of the the two rollers on the metering gap match in size and direction. Between the metering roller and the one adhering to the paper web There is therefore no relative speed of the coating composition. In this way is the wear of the metering roller by the in the coating mass contained abrasive particles as small as possible. But you remove the writing that the synchronism of the two rollers causes another problem: In the narrow gap between the metering roller and the deflection roller the layer already adhering to the paper web becomes different than with one counter-rotating metering roller- split, so that part of the coating mass the paper web sticks, another part is carried by the metering roller. After the paper web has passed through the nip, the adhering one is Layer still uneven at first, so that longitudinal stripes are clearly visible. In order to eliminate this stripe pattern, a leveling device is provided, namely a doctor blade consisting of a substantially rectangular tab Made of a flexible rubber-like material attached to its back, to the Axes of the two rollers parallel edge fixed on one side to a holding bar is and slack on the upper run of the deflecting roller Paper web rests.

Je nach der Konsistenz der Beschichtungsmasse, die wegen der unterschiedlichen Rezepturen der einzelnen Hersteller von Dekorpapier merkliche Unterschiede aufweisen kann, reicht aber ein derartiger Lappen nicht immer aus, um das unerwünschte Streifenmuster völlig unsichtbar zu machen.Depending on the consistency of the coating mass, which is due to the different Recipes of the individual manufacturers of decor paper noticeable differences may have, but such a cloth is not always sufficient to make unwanted stripe patterns completely invisible.

Gemäß US-PS 19 39 012 wird zum Glattstreichen der Oberfläche von feuchten Ziegelsteinformlingen eine Schnecke eingesetzt. Eine mit feuchtem Lehm gefüllte Form wird unter der rotierenden Schnecke hindurchbewegt. Dabei wird überschüssiger Lehm abgestreift. Er fällt in einen seitlich angeordneten Schacht und wird einer neuen Verwertung zugeführt.According to US-PS 19 39 012 is used to smooth the surface of damp Brick moldings used a snail. One filled with damp clay The mold is moved under the rotating screw. Doing so excess clay stripped off. It falls into a shaft arranged on the side and is recycled.

Die DE 195 41 000 A1 beschreibt eine Vorrichtung zum Glätten von durchlaufenden Gipsfaserplatten, bestehend im wesentlichen aus einer Schnecke, die quer über einem Förderband für die durchlaufenden Gipsfaserplatten angeordnet ist. Die rotierende Schnecke trägt nach Art eines Schabers von der Oberfläche der unter ihr durchaufenden, bereits abgebundenen Gipsfaserplatte, die noch feucht oder schon getrocknet sein kann, feine Partikel ab, die durch die Förderwirkung der Schnecke zum Rand transportiert werden und dort in einen Behälter fallen.DE 195 41 000 A1 describes a device for smoothing continuous Gypsum fibreboard, consisting essentially of a snail that runs across a conveyor belt for the continuous gypsum fiber boards is arranged. The rotating snail carries like a scraper from the surface of the one below it continuous, already set gypsum fibreboard that is still damp or already can be dried, fine particles from the conveying action of the screw be transported to the edge and fall into a container there.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1 weiter zu entwickeln, so daß sie auch bei Einsatz schwer verarbeitbarer Beschichtungsmassen gleichmäßig beschichtete Papiere ohne sichtbare Streifen liefert.The invention has for its object a device according to the preamble of claim 1 to develop further, so that they are difficult to use processable coating compositions evenly coated papers without provides visible stripes.

Diese Aufgabe wird gemäß dem Kennzeichen des Anspruchs 1 dadurch gelöst, daß die Egalisiereinrichtung mindestens eine Strukturwalze umfaßt, deren Hüllfläche eine gewindeartige Struktur hat.This object is achieved according to the characterizing part of claim 1 in that the leveling device comprises at least one structural roller, the enveloping surface of which has a thread-like structure.

Weitere vorteilhafte Merkmale der Erfindung sind Gegenstand der Ansprüche 2 bis 10.Further advantageous features of the invention are the subject of claims 2 to 10th

Die Zeichnung dient zur Erläuterung der Erfindung anhand von schematisch dargestellten Ausführungsbeispielen.

  • Die Figuren 1 bis 4 veranschaulichen verschiedene Vorrichtungen gemäß der Erfindung.
  • Die Figuren 5 bis 7 veranschaulichen verschiedene Strukturwalzen.
  • The drawing serves to explain the invention using schematically illustrated exemplary embodiments.
  • Figures 1 to 4 illustrate various devices according to the invention.
  • Figures 5 to 7 illustrate different structure rolls.
  • Gemäß Figur 1 wird eine Papierbahn 1, die bereits mit Harz vorimprägniert, gegebenenfalls auch schon getrocknet ist, in waagerechter Richtung einer Umlenkwalze 2 zugeführt. Sie umschlingt die Umlenkwalze 2 im Bereich eines Bogens von 180°, der etwa in der Sechsuhr-Position durch die Auflauflinie 3 und in der Zwölfuhr-Position durch die Ablauflinie 4 begrenzt ist. Anschließend läuft die Papierbahn 1 in waagerechter Richtung, wie durch den Pfeil 5 symbolisiert, zu einem nicht dargestellten Trockner.According to FIG. 1, a paper web 1 that has already been pre-impregnated with resin is if necessary, has already dried in the horizontal direction Deflection roller 2 supplied. It wraps around the deflection roller 2 in the area of a Arc of 180 °, which is approximately in the six o'clock position through the stop line 3 and in the Zwölfuhr position is limited by drain line 4. Then the runs Paper web 1 in the horizontal direction, as symbolized by arrow 5 a dryer, not shown.

    Neben der Umlenkwalze 2 ist eine Dosierwalze 6 mit glatter Mantelfläche angeordnet. Sie hat bei dem dargestellten Ausführungsbeispiel den gleichen Durchmesser wie die Umlenkwalze 2. Die Achsen der Umlenkwalze 2 und der Dosierwalze 6 sind parallel zueinander in gleicher Höhe in einem nicht dargestellten Maschinengestell gelagert. Die Lagerung einer der beiden Walzen 2, 6 ist in waagerechter Richtung verschieblich, so daß die Breite des zwischen den beiden Walzen 2, 6 bestehenden engen Spaltes veränderlich ist. Die Dosierwalze 6 ist ebenso wie die Umlenkwalze 2 mit einem Antrieb versehen. Die Antriebe der beiden Walzen 2, 6 sind mechanisch oder elektrisch gekoppelt, so daß die Walzen 2, 6 synchron oder annähernd synchron umlaufen, das heißt vorzugsweise mit übereinstimmender Oberflächengeschwindigkeit, die der Fördergeschwindigkeit der Papierbahn entspricht.In addition to the deflection roller 2 is a metering roller 6 with a smooth outer surface arranged. It has the same in the illustrated embodiment Diameter as the deflection roller 2. The axes of the deflection roller 2 and Metering roller 6 are parallel to each other at the same height in a, not shown Machine frame stored. The storage of one of the two rollers 2, 6 is in slidable horizontally so that the width of the between the two Rolls 2, 6 existing narrow gap is variable. The metering roller 6 is as well as the deflection roller 2 provided with a drive. The drives of the two Rollers 2, 6 are mechanically or electrically coupled, so that the rollers 2, 6 circulate synchronously or approximately synchronously, that is preferably with coinciding surface speed, which is the conveying speed of the Paper web corresponds.

    Unter der Umlenkwalze 2 ist eine Schlitzdüse 7 zum Auftragen der Beschichtungsmasse angeordnet. Die Schlitzdüse 7 ist der Auflauflinie 3 benachbart.Under the deflection roller 2 is a slot nozzle 7 for applying the Coating compound arranged. The slot nozzle 7 is the ramp line 3 adjacent.

    In kurzem Abstand von der Ablauflinie 4 ist über dem ablaufenden oberen Trum der Papierbahn 1 eine Egalisiereinrichtung 8 angeordnet. Sie umfaßt eine Strukturwalze 9 und eine glatte Walze 10, die in Bahnlaufrichtung hinter der Strukturwalze 9 angeordnet ist. Die Strukturwalze 9 und die glatte Walze 10 sind höhenverstellbar, so daß ihre Abstände von der Papierbahn 1 veränderlich sind. In kurzem Abstand, der etwa dem Abstand der Walze 10 von der Auflauflinie 4 entspricht, ist in Richtung des Pfeils 5 hinter der Egalisiereinrichtung 8 unter der Papierbahn 1 eine Stützwalze 11 angeordnet.At a short distance from the drain line 4 is above the running upper run Paper web 1 arranged a leveling device 8. It comprises a structure roller 9 and a smooth roller 10, which is behind the structure roller 9 in the web running direction is arranged. The structure roller 9 and the smooth roller 10 are adjustable in height, so that their distances from the paper web 1 are variable. In a short distance, which corresponds approximately to the distance of the roller 10 from the run-up line 4 is in the direction of the arrow 5 behind the leveling device 8 under the paper web 1 a support roller 11 arranged.

    Die Hüllfläche der Strukturwalze 9 hat eine gewindeartige Struktur. Die in Figur 5 veranschaulichte Strukturwalze ist mit einer schraubenlinienförmigen Nut 12 versehen, die sich entsprechend der Arbeitsbreite im wesentlichen über die ganze Länge der Strukturwalze 9 erstreckt. Der zwischen benachbarten Gängen verbleibende Steg 13 ist im Schnitt rechteckig und hat etwa die gleiche Breite wie die Nut 12. Die Hüllfläche hat daher die Struktur eines eingängigen Gewindes.The enveloping surface of the structure roller 9 has a thread-like structure. The in Figure 5 The illustrated structural roller has a helical groove 12 provided, which essentially correspond to the working width over the whole Length of the structural roller 9 extends. The one between neighboring corridors remaining web 13 is rectangular in section and has approximately the same width as the groove 12. The envelope surface therefore has the structure of a single thread.

    Hiervon unterscheidet sich die in Figur 6 veranschaulichte Strukturwalze dadurch, daß sie mit einem mehrgängigen, und zwar mit einem dreigängigen Gewinde versehen ist. Dadurch wird bei unverändertem Querschnitt der Nuten und Stege die Ganghöhe entsprechend vergrößert, ebenso der Steigungswinkel.The structure roller illustrated in FIG. 6 differs from this in that that they have a multi-start, namely with a three-start thread is provided. As a result, the cross-section of the grooves and webs remains unchanged Pitch increased accordingly, as well as the pitch angle.

    Die in Figur 7 veranschaulichte Strukturwalze ist mit einem System von schraubenlinienförmigen Nuten gleicher Steigung mit entgegengesetztem Schraubensinn versehen. Das System umfaßt je drei rechtsgängige und linksgängige Nuten. Die linksgängigen Nuten entsprechen den in Figur 6 veranschaulichten Nuten. Durch die einander kreuzenden Nuten wird aus der Walze ein flaches, an einen Fliesenbelag erinnerndes Relief aus rautenförmigen Inseln 14 herausgearbeitet, deren eine Diagonale parallel zur Walzenachse gerichtet ist. Die zweite Diagonale liegt rechtwinkelig dazu.The structure roller illustrated in FIG. 7 is with a system of helical grooves of the same pitch with opposite Screw sense provided. The system comprises three right-handed and three left-handed grooves. The left-hand grooves correspond to those in FIG. 6 illustrated grooves. Due to the intersecting grooves, the roller becomes a flat relief of diamond-shaped islands 14, reminiscent of a tile covering worked out, whose one diagonal is parallel to the roller axis. The second diagonal is at right angles to it.

    Bei der Vorrichtung gemäß Figur 1 läuft die Papierbahn 1 im Betrieb mit einer Geschwindigkeit zwischen etwa 10 und 70 m/min, vorzugsweise zwischen 20 und 50 m/min durch. Mit der Schlitzdüse 7 wird von unten Beschichtungsmasse, die aus flüssigem Harz und darin suspendierten feinen Korundpartikeln besteht, im Überschuß direkt auf die Papierbahn aufgetragen. Die so gebildete Schicht wird in dem engen Spalt zwischen der Umlenkwalze 2 und der Dosierwalze 6 gespalten, so daß ein Teil der Beschichtungsmasse an dem Papier haften bleibt, der andere Teil von der Dosierwalze 6 mitgeführt wird. Überschüssige Beschichtungsmasse wird in dem Spalt gestaut und tropft ab. Da die Oberflächengeschwindigkeiten der beiden Walzen 2, 6 die gleiche Richtung haben und vorzugsweise zumindest annähernd gleich groß sind, verursachen die in der Beschichtungsmasse enthaltenen abrasiven Partikel keinen nennenswerten Verschleiß an der Dosierwalze 6.In the device according to FIG. 1, the paper web 1 runs with one in operation Speed between about 10 and 70 m / min, preferably between 20 and 50 m / min through. Coating compound, which consists of liquid resin and fine corundum particles suspended in it Excess applied directly to the paper web. The layer thus formed is in split the narrow gap between the deflection roller 2 and the metering roller 6, so that part of the coating compound sticks to the paper, the other part is carried by the metering roller 6. Excess coating mass is in stuck in the gap and drips. Because the surface speeds of the two Rollers 2, 6 have the same direction and preferably at least approximately are the same size, cause the abrasives contained in the coating material Particles no significant wear on the metering roller 6.

    Die an der Papierbahn anhaftende Schicht ―im Mittel etwa 30 bis 100 g/m2- ist zunächst ungleichmäßig, so daß Längsstreifen deutlich sichtbar sind. Die Streifen sind dadurch zu erklären, daß die flüssige Beschichtungsmasse bei der Aufspaltung der Schicht im Walzenspalt infolge der Oberflächenspannung dazu tendiert, sich an bestimmten, mehr oder weniger gleichmäßig über die Breite verteilten Stellen zusammenzuziehen. An diesen Stellen hat das Profil der an der Papierbahn anhaftenden Schicht Maxima, die als schmale Streifen in Erscheinung treten. Die Breite eines Streifens beträgt erfahrungsgemäß in der Regel etwa 5 mm. Der Abstand zweier benachbarter Streifen liegt meistens zwischen etwa 10 und 30 mm. Das unerwünschte Streifenmuster ändert sich mitunter in unvorhersehbarer Weise.The layer ― adhering to the paper web on average about 30 to 100 g / m 2 - is initially uneven, so that longitudinal stripes are clearly visible. The stripes can be explained by the fact that the liquid coating composition tends to contract due to the surface tension when the layer is split up in the nip due to the fact that it contracts at certain points, more or less evenly distributed over the width. At these points, the profile of the layer adhering to the paper web has maxima, which appear as narrow strips. Experience has shown that the width of a strip is usually around 5 mm. The distance between two adjacent strips is usually between about 10 and 30 mm. The unwanted stripe pattern sometimes changes in an unpredictable way.

    Die Strukturwalze 9 ist so eingestellt, daß sie die Papierbahn berührt. Die schnell rotierende Strukturwalze 9 in der Ausführung gemäß Figur 5 oder Figur 6 übt ―mit einer Schnecke vergleichbar- auf die in den Streifen angehäufte Beschichtungsmasse in Richtung ihrer Achse, das heißt quer zur Papierbahn 1, eine fördernde Wirkung aus. Voraussetzung ist natürlich, daß die Oberflächengeschwindigkeit der Strukturwalze 9 im Eingriffsbereich erheblich von der Geschwindigkeit abweicht, mit der sich die Papierbahn 1 in Richtung des Pfeils 5 bewegt. Je nach dem Drehsinn, mit dem die Strukturwalze 9 rotiert, und dem Schraubensinn des Gewindes ist die fördernde Wirkung einseitig zu dem einen oder dem anderen Rand der Papierbahn gerichtet. Durch die Förderwirkung werden die verdickten Streifen dabei in Querrichtung sozusagen verwischt. Es wird aber keine Beschichtungsmasse von der Papierbahn 1 entfernt. Die Strukturwalze 9 hat daher nur eine vergleichmäßigende Wirkung, aber keinen Einfluß auf die Dosierung. Aus diesem Grunde kommt es bei der Strukturwalze 9 ―anders als bei der Dosierwalze 6- nicht auf extreme Maßhaltigkeit an. Ein gewisser Verschleiß hat kaum einen Einfluß auf die Wirksamkeit der Strukturwalze 9. Daher verursacht die Strukturwalze 9 keine besonders hohen Kosten.The structure roller 9 is set so that it touches the paper web. The quick rotating structure roller 9 in the embodiment according to FIG. 5 or FIG. 6 exercises ―mit comparable to a snail - the one accumulated in the strips Coating composition in the direction of its axis, that is to say transversely to the paper web 1 promoting effect. The prerequisite is, of course, that the Surface speed of the structural roller 9 in the engagement area considerably the speed at which the paper web 1 deviates in the direction of the arrow 5 deviates emotional. Depending on the direction of rotation with which the structural roller 9 rotates, and the The sense of screwing of the thread is the one-sided promotional effect the other edge of the paper web. Through the promotional effect thickened strips blurred in the transverse direction, so to speak. But it won't Coating composition removed from paper web 1. The structure roller 9 therefore has only a comparative effect, but no influence on the dosage. Out For this reason, the structure roller 9 is different than the metering roller 6- does not depend on extreme dimensional accuracy. There is hardly any wear Influence on the effectiveness of the structural roller 9. Therefore, the structural roller causes 9 not particularly high costs.

    Die nachgeschaltete glatte Walze 10, die ebenfalls mit hoher Geschwindigkeit rotiert, bewirkt noch eine weitere Vergleichmäßigung.The downstream smooth roller 10, which is also at high speed rotates, causes a further equalization.

    Durch die Umlenkwalze 2 und die in relativ kurzem Abstand angeordnete Stützwalze 11 wird der Durchhang der Papierbahn 1, die in Betrieb üblicherweise unter einer gewissen Zugspannung steht, im Bereich der Egalisiereinrichtung 8 auf ein unmerkliches Maß reduziert.Through the deflection roller 2 and the support roller arranged at a relatively short distance 11 becomes the sag of the paper web 1, which is usually in operation under one certain tensile stress, in the area of the leveling device 8 imperceptible size reduced.

    Bei der Vorrichtung gemäß Figur 1 kann auch als Strukturwalze 9 eine Walze eingesetzt werden, deren Hüllfläche die in Figur 7 veranschaulichte Struktur hat. Hierbei wird das in den Streifen akkumulierte Beschichtungsmaterial durch die ―in Richtung der Oberflächengeschwindigkeit gesehen- vorderen, in Bezug auf die Oberflächengeschwindigkeit schiefwinkligen Kanten der rautenförmigen Inseln 14 teils zur einen und teils zur anderen Seite abgetragen. Dadurch wird eine gleichmäßige Verteilung erreicht. In the device according to FIG. 1, a roller can also be used as the structural roller 9 can be used, the envelope surface has the structure illustrated in Figure 7. Here, the coating material accumulated in the strips is separated by the ―in Direction of surface speed seen- front, in relation to the Surface velocity of oblique-angled edges of diamond-shaped islands 14 partly removed to one side and partly to the other side. This will make one even distribution achieved.

    Von dem soeben beschriebenen Ausführungsbeispiel gemäß Figur 1 unterscheidet sich das in Figur 2 veranschaulichte Ausführungsbeispiel insbesondere dadurch, daß die Egalisiereinrichtung 8 zwei hintereinander angeordnete Strukturwalzen 9, 9a umfaßt. Ein weiterer Unterschied besteht darin, daß die Schlitzdüse 7 der Dosierwalze 6 zugeordnet ist.It differs from the exemplary embodiment according to FIG. 1 just described The exemplary embodiment illustrated in FIG. 2 is characterized in particular by that the leveling device 8 two structure rollers 9, 9a arranged one behind the other includes. Another difference is that the slot nozzle 7 of Dosing roller 6 is assigned.

    Bei dem Ausführungsbeispiel gemäß Figur 3 umfaßt die Egalisiereinrichtung ein Rakel 15, welches im Bahnlauf vor der Strukturwalze 9 angeordnet ist. Es besteht aus einem im wesentlichen rechteckigen Lappen 16 aus flexiblem, gummiartigem Material, der an seiner rückwärtigen, zur Achse der Strukturwalze 9 parallelen Kante einseitig an einer Halteleiste 17 befestigt ist und schlaff auf dem von der Umlenkwalze 2 ablaufenden oberen Trum der Papierbahn 1 aufliegt. Der Lappen 16 bewirkt schon eine gewisse Voregalisierung. Weiterhin unterscheidet sich das Ausführungsbeispiel nach Figur 3 von den vorher erörterten Ausführungsbeispielen dadurch, daß der Dosierwalze 6 ein ähnliches Rakel 18 zugeordnet ist. Die zugehörige Halteleiste 19 ist schräg über der Dosierwalze 6 angeordnet, und zwar an der Seite, die der Umlenkwalze 2 abgekehrt ist. Daran ist ein flexibler rechteckiger Kunststofflappen 20 einseitig aufgehängt. Der vordere Teil des Lappens liegt schlaff auf der Dosierwalze 6 auf. Durch den Lappen 20 wird die an der Dosierwalze 6 anhaftende Beschichtungsmasse egalisiert. Dadurch wird verhindert, daß ein ungleichmäßiges Profil der an der Dosierwalze 6 anhaftenden Schicht auf die Beschichtung der Papierbahn 1 übertragen wird.In the exemplary embodiment according to FIG. 3, the leveling device comprises a Doctor blade 15, which is arranged in the web run in front of the structural roller 9. It exists from a substantially rectangular tab 16 made of flexible, rubber-like Material on its rear edge parallel to the axis of the structural roller 9 is attached on one side to a retaining bar 17 and slack on the by the Deflection roller 2 running upper strand of the paper web 1 rests. Rag 16 already causes a certain amount of pre-legalization. This also differs Embodiment according to Figure 3 of the previously discussed embodiments in that the metering roller 6 is assigned a similar doctor blade 18. The associated holding bar 19 is arranged obliquely above the metering roller 6, namely on the side facing away from the deflection roller 2. There is a more flexible approach to this rectangular plastic tab 20 hung on one side. The front part of the Lappens lies limply on the metering roller 6. By the rag 20 is on leveling of the dosing roller 6 adhering coating mass. This will prevents an uneven profile of those adhering to the metering roller 6 Layer is transferred to the coating of the paper web 1.

    Das durch Figur 3 a veranschaulichte Ausführungsbeispiel unterscheidet sich von dem der Figur 3 dadurch, daß das Rakel 15 ―in Laufrichtung gesehen- hinter der Strukturwalze 9 angeordnet ist, so daß der Lappen 16 über der Stützwalze 11 auf der Papierbahn 1 aufliegt. Etwaige hinter der Strukturwalze 9 noch sichtbare, schräg verlaufende Streifen werden durch den Lappen 16 geglättet.The embodiment illustrated by FIG. 3 a differs from that of Figure 3 in that the doctor blade 15 gesehen seen in the direction of travel - behind the Structural roller 9 is arranged so that the tab 16 on the support roller 11 the paper web 1 rests. Any oblique lines that are still visible behind the structural roller 9 running strips are smoothed by the tab 16.

    Bei dem Ausführungsbeispiel gemäß Figur 4 ist die Dosierwalze 6 nahezu senkrecht ―etwa in der Elfuhr-Position- über der Umlenkwalze 2 angeordnet. Daher durchläuft die Papierbahn zwischen Dosierung und Egalisierung nur eine relativ kurze Strecke und benötigt dafür nur ein entsprechend kurzes Zeitintervall. Das hat, wie Versuche ergeben haben, einen positiven Einfluß auf die Egalisierung.In the embodiment shown in Figure 4, the metering roller 6 is almost vertical ―About the deflection roller 2 in the Elfuhr position. Therefore goes through the paper web between dosing and leveling only a relatively short distance and only requires a correspondingly short time interval. That has, like attempts have shown a positive influence on the equalization.

    Claims (10)

    Vorrichtung zum Auftragen einer aus flüssigem Harz und feinkörnigem abrasivem Material, insbesondere Korund, bestehenden Beschichtungsmasse auf eine durchlaufende Papierbahn, die zur Verwendung bei der Herstellung abriebfester Laminate bestimmt ist, mit einer Umlenkwalze, an der die Papierbahn in einem Umschlingungsbereich anliegt, mit einer Dosierwalze, die parallel zur Umlenkwalze angeordnet ist und mit ihr einen engen Spalt einschließt, mit einer Schlitzdüse zum Auftragen der Beschichtungsmasse entweder direkt auf die an der Umlenkwalze anliegende Papierbahn oder auf die Dosierwalze und mit einer Einrichtung zum Egalisieren der frisch aufgetragenen Beschichtungsmasse,
    dadurch gekennzeichnet, daß die Egalisiereinrichtung (8) mindestens eine Strukturwalze (9, 9a) umfaßt, deren Hüllfläche eine gewindeartige Struktur hat.
    Device for applying a coating composition consisting of liquid resin and fine-grained abrasive material, in particular corundum, to a continuous paper web which is intended for use in the production of abrasion-resistant laminates, with a deflection roller against which the paper web lies in a wrapping area, with a metering roller which is arranged parallel to the deflection roller and encloses a narrow gap with it, with a slot nozzle for applying the coating material either directly onto the paper web lying against the deflection roller or onto the metering roller and with a device for leveling the freshly applied coating composition,
    characterized in that the leveling device (8) comprises at least one structure roller (9, 9a), the envelope surface of which has a thread-like structure.
    Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Strukturwalze (9, 9a) mit einem mehrgängigen Gewinde versehen ist.Device according to claim 1, characterized in that the structure roller (9, 9a) is provided with a multi-start thread. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Strukturwalze (9, 9a) mit einem System von einander kreuzenden schraubenlinienförmigen Nuten.Device according to claim 1 or 2, characterized in that the Structural roller (9, 9a) with a system of intersecting helical grooves. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Egalisiereinrichtung (8) mindestens zwei Strukturwalzen (9, 9a) umfaßt. Device according to one of claims 1 to 3, characterized in that the leveling device (8) comprises at least two structure rollers (9, 9a). Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Egalisiereinrichtung (8) ein Rakel (15) umfaßt, welches im Bahnlauf vor oder hinter der (den) Strukturwalze (n) (9, 9a) angeordnet ist und einen im wesentlichen rechtwinkeligen Lappen (16) aus flexiblem, gummiartigem Material aufweist, der an seiner rückwärtigen, zur Achse der Strukturwalze (n) (9, 9a) parallelen Kante einseitig befestigt ist und schlaff auf dem von der Umlenkwalze (2) ablaufenden oberen Trum der Papierbahn (1) aufliegt.Device according to one of claims 1 to 4, characterized in that the leveling device (8) comprises a doctor blade (15) which is in front of or in the web run is arranged behind the structure roller (s) (9, 9a) and one in the essential rectangular tab (16) made of flexible, rubber-like material has, which on its rear, to the axis of the structural roller (s) (9, 9a) parallel edge is fixed on one side and slack on that of the deflection roller (2) running upper strand of the paper web (1) rests. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Egalisiereinrichtung (8) eine glatte Walze (10) umfaßt, die in Bahnlaufrichtung hinter der (den) Strukturwalze (n) (9, 9a) angeordnet ist.Device according to one of claims 1 to 5, characterized in that the leveling device (8) comprises a smooth roller (10) which in Web running direction is arranged behind the structure roller (s) (9, 9a). Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß in kurzem Abstand vor und hinter dem Bereich, in dem die Egalisiereinrichtung (8) an der Papierbahn (1) angreift, Stützorgane (2, 11) für die Papierbahn (1) angeordnet sind.Device according to one of claims 1 to 6, characterized in that in short distance in front of and behind the area in which the leveling device (8) acts on the paper web (1), support members (2, 11) for the paper web (1) are arranged. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Umlenkwalze (2) das eine Stützorgan bildet und das als zweites Stützorgan eine zusätzliche Stützwalze (11) vorgesehen ist.Apparatus according to claim 7, characterized in that the deflecting roller (2) which forms a support member and which, as a second support member, is an additional one Back-up roller (11) is provided. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß bei waagerechter Führung des von der Umlenkwalze (2) ablaufenden Trums der Papierbahn (1) die Dosierwalze (6) senkrecht oder nahezu senkrecht über der Umlenkwalze (2) angeordnet ist.Device according to one of claims 1 to 8, characterized in that with horizontal guidance of the run of the deflection roller (2) Paper web (1) the metering roller (6) vertically or almost vertically above the Deflection roller (2) is arranged. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Dosierwalze (6) ein Rakel (18) zugeordnet ist.Device according to one of claims 1 to 9, characterized in that a doctor blade (18) is associated with the metering roller (6).
    EP00116909A 1999-09-28 2000-08-05 Device for applying an abrasive substance onto a moving web Expired - Lifetime EP1088595B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19946325 1999-09-28
    DE19946325A DE19946325A1 (en) 1999-09-28 1999-09-28 Device for applying an abrasive coating compound to a continuous paper web

    Publications (3)

    Publication Number Publication Date
    EP1088595A2 true EP1088595A2 (en) 2001-04-04
    EP1088595A3 EP1088595A3 (en) 2004-07-14
    EP1088595B1 EP1088595B1 (en) 2006-08-23

    Family

    ID=7923499

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00116909A Expired - Lifetime EP1088595B1 (en) 1999-09-28 2000-08-05 Device for applying an abrasive substance onto a moving web

    Country Status (5)

    Country Link
    US (1) US6471776B1 (en)
    EP (1) EP1088595B1 (en)
    AT (1) ATE337106T1 (en)
    DE (2) DE19946325A1 (en)
    ES (1) ES2270767T3 (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2002055220A1 (en) * 2001-01-10 2002-07-18 3M Innovative Properties Company Coating device and method using wire-wound rods
    US6899922B2 (en) 2001-01-10 2005-05-31 3M Innovative Properties Company Method for coating a limited length substrate using rotating support and at least one pick-and-place roll

    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    RU2226285C2 (en) * 2000-07-11 2004-03-27 ОПТИВА, Инк. Gear to form polarizer, device for local removal of polarizer film and production line to form polarizers
    CN1162718C (en) * 2000-07-11 2004-08-18 奥普逖娃公司 Process device for producing polarizer
    WO2005081336A1 (en) * 2004-02-20 2005-09-01 Matsushita Electric Industrial Co., Ltd. Method for producing lithium ion secondary battery
    DE102004063043B3 (en) * 2004-12-22 2006-07-20 Vits Systems Gmbh Apparatus for applying a coating composition to a paper web
    JP4536555B2 (en) * 2005-03-02 2010-09-01 三菱電機株式会社 Search display device
    KR20170143314A (en) * 2016-06-21 2017-12-29 에스케이이노베이션 주식회사 Ultra large-width and consecutive coating device and manufacturing method with good productivity for membrane
    GB2560577B (en) * 2017-03-17 2022-06-22 Chesterfelt Ltd Apparatus for the production of a waterproof membrane
    KR102617232B1 (en) * 2018-03-15 2023-12-27 아이오 테크 그룹 엘티디. Multi-material dispensing and coating system
    CN112030601A (en) * 2020-08-21 2020-12-04 南通凯迪自动机械有限公司 Wear-resistant paper production device
    BE1028869B1 (en) 2020-12-09 2022-07-11 Ecochem Int Nv NON-HALOGEN FIRE RETARDANT COMPOSITION AND USE OF THIS COMPOSITION FOR DIRECT AND INDIRECT FIRE PROTECTION LAYERS ON SUBSTRATES
    EP4259396A1 (en) 2020-12-09 2023-10-18 Ecochem International NV Use of non-halogen fire retardant composition for indirect fire protection layers on substrates

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US1939012A (en) 1931-12-24 1933-12-12 Armstrong Cork Co Strike for brick molds
    DE19508797C1 (en) 1995-03-15 1996-08-29 Graudenz & Partner Consultatio Process for making decorative paper for use in making abrasion resistant laminates
    DE19541000A1 (en) 1995-11-03 1997-05-07 Babcock Bsh Gmbh Device for smoothing continuous gypsum fibreboards
    DE19814212C1 (en) 1998-03-31 1999-09-02 Vits Maschinenbau Gmbh Apparatus to apply an abrasive coating mass to a moving paper web surface

    Family Cites Families (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB1123128A (en) * 1966-05-17 1968-08-14 Interchem Corp Wire wound spreading rods for coating processes
    FR1564894A (en) * 1968-03-14 1969-04-25
    ATA287276A (en) * 1976-03-31 1979-02-15 Caratsch Hans Peter METHOD AND EQUIPMENT FOR APPLYING RESIN POWDER IN A GRID-SHAPED COATING TO RAIL MATERIAL
    JPS57156066A (en) * 1981-03-20 1982-09-27 Fuji Photo Film Co Ltd Method and device for coating
    FI78404C (en) * 1987-08-04 1989-08-10 Valmet Paper Machinery Inc FOERFARANDE OCH ANORDNING FOER DOSERING AV BESTRYKNINGSMEDEL PAO ROERLIGT UNDERLAG.
    SE463078B (en) * 1988-09-27 1990-10-08 Btg Kaelle Inventing Ab APPLICATION DEVICE MAKES ONE OR TWO-SIDE COATING OF A CURRENT COAT
    DE3841494A1 (en) * 1988-12-09 1990-06-13 Jagenberg Ag Spreading shaft for the volumetric metering of coating material
    JPH0880467A (en) * 1994-09-13 1996-03-26 Dainippon Printing Co Ltd Metaling roll
    SE503836C2 (en) * 1994-12-22 1996-09-16 Btg Kaelle Inventing Ab Application device and method thereof
    DE19751697A1 (en) * 1997-11-21 1999-05-27 Voith Sulzer Papiertech Patent Device for the indirect application of a liquid or pasty medium to a material web, in particular made of paper or cardboard

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US1939012A (en) 1931-12-24 1933-12-12 Armstrong Cork Co Strike for brick molds
    DE19508797C1 (en) 1995-03-15 1996-08-29 Graudenz & Partner Consultatio Process for making decorative paper for use in making abrasion resistant laminates
    DE19541000A1 (en) 1995-11-03 1997-05-07 Babcock Bsh Gmbh Device for smoothing continuous gypsum fibreboards
    DE19814212C1 (en) 1998-03-31 1999-09-02 Vits Maschinenbau Gmbh Apparatus to apply an abrasive coating mass to a moving paper web surface

    Cited By (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2002055220A1 (en) * 2001-01-10 2002-07-18 3M Innovative Properties Company Coating device and method using wire-wound rods
    US6737113B2 (en) * 2001-01-10 2004-05-18 3M Innovative Properties Company Method for improving the uniformity of a wet coating on a substrate using pick-and-place devices
    US6855374B2 (en) 2001-01-10 2005-02-15 3M Innovative Properties Company Method for improving the uniformity of a wet coating on a substrate using at least two wire-wound rods
    US6878408B2 (en) 2001-01-10 2005-04-12 3M Innovative Properties Company Coating device and method using pick-and-place devices having equal or substantially equal periods
    US6899922B2 (en) 2001-01-10 2005-05-31 3M Innovative Properties Company Method for coating a limited length substrate using rotating support and at least one pick-and-place roll
    US7311780B2 (en) 2001-01-10 2007-12-25 3M Innovative Properties Company Coating device and method using pick-and-place devices having equal or substantially equal periods

    Also Published As

    Publication number Publication date
    EP1088595B1 (en) 2006-08-23
    DE19946325A1 (en) 2001-04-05
    EP1088595A3 (en) 2004-07-14
    DE50013349D1 (en) 2006-10-05
    ES2270767T3 (en) 2007-04-16
    US6471776B1 (en) 2002-10-29
    ATE337106T1 (en) 2006-09-15

    Similar Documents

    Publication Publication Date Title
    DE2507116C3 (en) Device and method for applying a highly viscous coating material to a metal strip
    DE4131131C2 (en) Device for applying coating color on a fibrous web
    EP1088595B1 (en) Device for applying an abrasive substance onto a moving web
    DE2452784B2 (en) Method and apparatus for continuously coating a strip of material, for example a paper web
    DE19901525C2 (en) Plant for impregnating and coating paper
    DE2027458B2 (en) METHOD AND DEVICE FOR APPLYING A COAT OF LACQUER TO A PLASTIC CARRIER, IN PARTICULAR FOR THE PRODUCTION OF MAGNETIC TAPES
    DE3010038A1 (en) DEVICE FOR CONTINUOUSLY TREATING TEXTILES AND THE LIKE RAILWAYS WITH FOAM
    EP1084298B1 (en) Device for applying a coating substance to a continuous paper web
    EP2841258A1 (en) Method and doctor blade device for spreading a resin paste onto a carrier film, and a resin sheet installation for producing resin sheets
    WO2006069646A1 (en) Device for applying a coating material to a paper web
    DE1806407C3 (en) Device for the continuous distribution of foamable liquids
    DE19814212C1 (en) Apparatus to apply an abrasive coating mass to a moving paper web surface
    EP3235388B1 (en) Device for applying a glue track to a covering strip of a rod-shaped product of the tobacco processing industry
    EP0002006B1 (en) Apparatus for the continuous application of a size, a binder or the like to moving mineral fibres, especially glass fibres
    AT392742B (en) Applicator unit for the application of coatings
    EP0071149B1 (en) Apparatus for the weight control of coatings on a travelling web
    CH597928A5 (en) Cascade distributor head for coating substances
    DE2812946B2 (en) Device for coating an endless web
    EP0029865B1 (en) Apparatus and process for coating moving webs of e.g. paper or board
    DE2314531A1 (en) ROLLER APPLICATION MACHINE FOR SINGLE-SIDED COATING OF PANEL-SHAPED CUTS
    EP0131064A1 (en) Method and apparatus for the continuous application of a reinforcing layer to a porous mineral building panel
    DE1254853B (en) Method and apparatus for applying a layer of adhesive to sheet or sheet material in the manufacture of plywood or other laminated materials
    EP0120482B1 (en) Device for applying a layer of fine ceramic material to a carrier
    DE3927365A1 (en) Applicator roller for coating low viscosity adhesive on foil - carries specified intersecting spiral grooves on its surface
    DE3512892A1 (en) DEVICE FOR APPLYING A LAYER OF ADHESIVE TO FILM MATERIAL LIKE PAPER AND PLASTIC

    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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    AX Request for extension of the european patent

    Free format text: AL;LT;LV;MK;RO;SI

    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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    AX Request for extension of the european patent

    Extension state: AL LT LV MK RO SI

    RIC1 Information provided on ipc code assigned before grant

    Ipc: 7B 05C 1/08 A

    Ipc: 7B 05C 11/02 B

    RAP1 Party data changed (applicant data changed or rights of an application transferred)

    Owner name: VITS VERWALTUNGS GMBH

    17P Request for examination filed

    Effective date: 20050114

    AKX Designation fees paid

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    17Q First examination report despatched

    Effective date: 20050421

    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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    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: 20060823

    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: 20060823

    Ref country code: FI

    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: 20060823

    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: 50013349

    Country of ref document: DE

    Date of ref document: 20061005

    Kind code of ref document: P

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: SE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20061123

    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: 20061123

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: NV

    Representative=s name: KEMENY AG PATENTANWALTBUERO

    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: 20070124

    NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FD4D

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FG2A

    Ref document number: 2270767

    Country of ref document: ES

    Kind code of ref document: T3

    EN Fr: translation not filed
    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    26N No opposition filed

    Effective date: 20070524

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20070511

    Ref country code: MC

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20070831

    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: 20061124

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: CH

    Payment date: 20080924

    Year of fee payment: 9

    Ref country code: DE

    Payment date: 20080819

    Year of fee payment: 9

    Ref country code: ES

    Payment date: 20080723

    Year of fee payment: 9

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20060823

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: AT

    Payment date: 20080825

    Year of fee payment: 9

    Ref country code: IT

    Payment date: 20080723

    Year of fee payment: 9

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: GB

    Payment date: 20080813

    Year of fee payment: 9

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: BE

    Payment date: 20080813

    Year of fee payment: 9

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    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: 20060823

    Ref country code: LU

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20070805

    BERE Be: lapsed

    Owner name: VITS VERWALTUNGS G.M.B.H.

    Effective date: 20090831

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

    GBPC Gb: european patent ceased through non-payment of renewal fee

    Effective date: 20090805

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: LI

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20090831

    Ref country code: CH

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20090831

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: AT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20090805

    Ref country code: BE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20090831

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20100302

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FD2A

    Effective date: 20090806

    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: 20090805

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20090805

    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 NON-PAYMENT OF DUE FEES

    Effective date: 20090806