EP0289824B1 - Apparatus for coating a moving paper or cardboard web - Google Patents

Apparatus for coating a moving paper or cardboard web Download PDF

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Publication number
EP0289824B1
EP0289824B1 EP88105935A EP88105935A EP0289824B1 EP 0289824 B1 EP0289824 B1 EP 0289824B1 EP 88105935 A EP88105935 A EP 88105935A EP 88105935 A EP88105935 A EP 88105935A EP 0289824 B1 EP0289824 B1 EP 0289824B1
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EP
European Patent Office
Prior art keywords
coating
web
outlet channels
walls
levelling chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88105935A
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German (de)
French (fr)
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EP0289824A2 (en
EP0289824A3 (en
Inventor
Hans-Peter Sollinger
Richard Bernert
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.)
JM Voith GmbH
Original Assignee
JM Voith 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 JM Voith GmbH filed Critical JM Voith GmbH
Priority to AT88105935T priority Critical patent/ATE72275T1/en
Publication of EP0289824A2 publication Critical patent/EP0289824A2/en
Publication of EP0289824A3 publication Critical patent/EP0289824A3/en
Application granted granted Critical
Publication of EP0289824B1 publication Critical patent/EP0289824B1/en
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Classifications

    • 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
    • B05C11/04—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 with blades
    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/10—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with blades

Definitions

  • the invention relates to a device according to the preamble of the main claim.
  • Such a device has become known from DE-OS 15 46 312.
  • the coating slip enters the leveling chamber through the inlet slot and fills it completely. Part of the coating slip leaves the leveling chamber, adhering to the paper web, on the outlet sides, namely between the doctor element and the paper web. Another part, namely the excess, leaves the leveling chamber again on the inlet side, in countercurrent to the coating slip arriving there. Two streams are thus present in the inlet gap and run in opposite directions.
  • the invention has for its object to design a device according to the generic term such that the disadvantages of flow and countercurrent in the area of the inlet into the leveling chamber are avoided.
  • a paper web wraps around a rotatable support roller 1.
  • the paper web is coated with coating slip 18, which was applied to a roller applicator, not shown here, containing an immersion roller.
  • the coating slip 18 was applied in excess.
  • a leveling chamber 1 can also be seen, which - seen in the direction of travel of the paper web (see arrow) - is delimited on the inlet side by a front wall 4 and on the outlet side by a doctor blade 3.
  • the leveling chamber 1 is delimited by the supporting wall 29 of a supporting beam and a clamping piece 25 fastened to it.
  • the doctor blade 3 is fixed on the clamping piece 25 by means of the clamping lever 28.
  • the front wall 4 is slidably held on the support wall 29 in the direction of the double arrow (not shown in detail here).
  • the front wall 4 is designed in a special way.
  • An attachment part 6 forms a wedge-shaped inlet gusset against the support roller 2.
  • an outlet channel 10, which - seen in the direction of flow - consists of a section 8 of a relatively large flow cross section and a section of a relatively small flow cross section.
  • Section 8 contains a cylindrical rotary valve 7.
  • the rotary valve 7 has a plurality of recesses 9, which - seen in the direction of the longitudinal axis of the rotary valve 7 - are arranged side by side. Likewise, a large number of outlet channels 10 are provided over the entire machine width, e.g. 3 with respect to the other variant (openings 10 '). The length of the rectangular cross section of the outlet openings 10 can also be significantly greater. It is theoretically possible - with a relatively small machine width - that only a single, slot-shaped outlet channel is provided, which extends over the entire machine width, and on the other hand also a plurality of rotary valves.
  • FIGS. 2 and 3 only reveals its front wall, namely in cross section (FIG. 2) and in plan view from the side from which the paper web runs in (FIG. 3).
  • the front wall 24 in turn has outlet channels 20, namely a plurality of these channels arranged distributed over the entire machine width.
  • a slide bar 15, which has windows 16, is assigned to the run-up channels 20.
  • the number of windows 16 is exactly the same as the number of outlet channels 20.
  • the outlet channels can be opened more or less in that the slide bar 15 is displaced transversely to the direction of travel of the paper web and the outlet channels are released more or less.
  • the pre-metered amount of the coating slip 18 applied in abundant overdosing now enters the leveling chamber 1 through the gap 14 formed on the material web.
  • the excess coating slip wiped off the doctor blade 3 flows out of the leveling chamber 1 through the outlet channels 10 and 20 and is fed to a collecting trough.
  • the chamber can also be closed by resilient side walls 22 on the edges of the web.
  • a gap with a small gap width 14 is now set by moving the front wall 4.
  • the rotary valve 7 or the throttle valve 15 is then adjusted so that the excess coating slip only exits from the leveling chamber 1 through the outlet channels 10 or 20, but not or not to a significant extent through the gap 14. This results in the most uniform flow conditions in the leveling chamber 1 including gap 14 and a perfect line without streaks, formation of orange peel, film splitting or the like in the area of the web.
  • FIG. 4 corresponds essentially to that shown in FIG. 1 except for the only difference that the slide 7 and the outlet channels 40 of the leveling chamber 21 are not in the front wall 26, but in which the doctor blade 3 load-bearing rear wall 12.
  • the outlet channels 50 are in the lower, i.e. Wall 49 of leveling chamber 31, which is remote from counter roll 2 or web of material.
  • Rotary slide 7 is clamped between a clamping strip 48 and a part of front wall 34 which projects beyond lower wall 49.
  • the leveling chamber is preferably closed by side baffle walls or sealing walls 17, 27, 37. It is not necessary that these walls rest on the web or the counter roll (then they would have to be made of soft material that is flexible), because it is sufficient that a small gap of 1 to 2 mm to the counter roll or web 2 exists.
  • These baffle walls are preferably held in holding devices which are formed in the form of extensions 33 of the walls of the leveling chamber. It can therefore be replaced and adapted to the different positions of the leveling chamber. This is shown in particular in the details in FIG. 3.

Abstract

The metering mechanism positioned against a counter-roller and located behind, with respect to the running direction of the material web, a pre-coating facility features a slit 14 on the feed side of a balancing chamber 1 formed on a front wall 4 to the counter-roller 2 and extending over the width of the web. The front wall 4 is provided with discharge channels 10 extending in the manner of a slit across the width of the web, which can be throttled by a rotary disc valve 7. In this way, an outflow from the balancing chamber 1 can only occur through the discharge channels 10, while only the coating material from the material web can be introduced through slit 14 into the balancing chamber but no coating slip emerges from the balancing chamber. <IMAGE>

Description

Die Erfindung betrifft eine einrichtung gemäß dem Oberbegriff des Hauptanspruchs.The invention relates to a device according to the preamble of the main claim.

Eine solche Vorrichtung ist aus DE-OS 15 46 312 bekanntgeworden. Dabei tritt die Streichmasse durch den Einlaufschlitz in die Egalisierkammer ein und füllt diese dabei restlos aus. Ein Teil der Streichmasse verläßt die Egalisierkammer, an der Papierbahn haftend, auf der Auslaufseiten, nämlich zwischen Rakelelement und Papierbahn. Ein anderer Teil, nämlich der Überschuß, verläßt die Egalisierkammer wiederum auf der Einlaufseite, und zwar im Gegenstrom zu der dort einlaufenden Streichmasse. Im Einlaufspalt sind somit zwei Ströme vorhanden, die in einander entgegengesetzten Richtungen verlaufen.Such a device has become known from DE-OS 15 46 312. The coating slip enters the leveling chamber through the inlet slot and fills it completely. Part of the coating slip leaves the leveling chamber, adhering to the paper web, on the outlet sides, namely between the doctor element and the paper web. Another part, namely the excess, leaves the leveling chamber again on the inlet side, in countercurrent to the coating slip arriving there. Two streams are thus present in the inlet gap and run in opposite directions.

Diese Gegenströmungen führen stets zu Problemen. Die Qualität des Vorstriches wird nämlich bei dieser Gegenströmung wieder verschlechtert; die Verschlechterung kann durch das Rakelelement meist nicht mehr ausgeglichen werden.These counter currents always lead to problems. The quality of the primer is deteriorated again with this countercurrent; the deterioration can usually no longer be compensated for by the doctor element.

Es gibt zahlreiche andere Lösungen, beispielsweise Düsenauftragswerke mit einer maschinenbreiten Schlitzdüse, aus der ein Streichmassestrahl gegen die Papierbahn austritt. Auch hier wird im Überschuß gearbeitet. Dabei tritt der Überschuß wiederum auf der Einlaufseite der Papierbahn in die Beschichtungszone zwischen den beiden Lippen des Schlitzes ein. Der Überschuß muß auch hier somit wiederum entgegen der Laufrichtung der Papierbahn strömen. Die Folgen sind genauso nachteilig, wie bei der eingangs geschilderten Vorrichtung mit der Egalisierkammer.There are numerous other solutions, for example nozzle applicators with a machine-wide slot nozzle from which a coating slip jet emerges against the paper web. Here too, work is carried out in excess. The excess again enters the coating zone between the two lips of the slot on the inlet side of the paper web. The excess must again flow against the direction of the paper web. The consequences are just as disadvantageous as in the device described above with the leveling chamber.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung gemäß dem Gattungsbegriff derart zu gestalten, daß die Nachteile von Strömung und Gegenströmung im Bereich des Einlaufes in die Egalisierkammer vermieden werden.The invention has for its object to design a device according to the generic term such that the disadvantages of flow and countercurrent in the area of the inlet into the leveling chamber are avoided.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Hauptanspruches gelöst.This object is achieved by the characterizing features of the main claim.

Die Erfindung ist anhand der Zeichnung näher erläutert. Darin ist im einzelnen folgendes dargestellt:

Fig. 1
zeigt einen Querschnitt durch die Vorrichtung, in einer Seitenansicht gesehen.
Fig. 2
zeigt eine zweite Ausführungsform, von der nur die wesentlichen Elemente im Querschnitt gezeigt sind.
Fig. 3
zeigt den Gegenstand von Fig. 2 in Draufsicht.
Fig. 4 und Fig. 5
zeigen weitere erfindungsgemäße Ausführungsformen, ebenfalls in Seitenansicht gesehen und ebenfalls im Querschnitt.
The invention is explained in more detail with reference to the drawing. The following is shown in detail:
Fig. 1
shows a cross section through the device, seen in a side view.
Fig. 2
shows a second embodiment, of which only the essential elements are shown in cross section.
Fig. 3
shows the object of Fig. 2 in plan view.
4 and 5
show further embodiments of the invention, also seen in side view and also in cross section.

Bei der in Fig. 1 dargestellten Ausführungsform umschlingt - wie strichpunktiert angedeutet - eine Papierbahn eine drehbare Stützwalze 1. Die Papierbahn ist mit Streichmasse 18 beschichtet, die an einem hier nicht dargestellten Walzenauftragswerk, enthaltend eine Tauchwalze, aufgetragen wurde. Die Streichmasse 18 wurde hierbei im Überschuß aufgetragen.In the embodiment shown in FIG. 1, as indicated by dash-dotted lines, a paper web wraps around a rotatable support roller 1. The paper web is coated with coating slip 18, which was applied to a roller applicator, not shown here, containing an immersion roller. The coating slip 18 was applied in excess.

Man erkennt ferner eine Egalisierkammer 1, die - in Laufrichtung der Papierbahn gesehen (siehe Pfeil) - einlaufseitig durch eine Vorderwand 4 und auslaufseitig durch eine Rakel 3 begrenzt ist.A leveling chamber 1 can also be seen, which - seen in the direction of travel of the paper web (see arrow) - is delimited on the inlet side by a front wall 4 and on the outlet side by a doctor blade 3.

An der der Gegenwalze 2 gegenüberliegenden Seite ist die Egalisierkammer 1 durch die Tragwand 29 eines Tragbalkens sowie ein an diesem befestigtes Klemmstück 25 begrenzt. Die Streichklinge 3 wird an dem Klemmstück 25 mittels Klemmhebel 28 festgelegt. Die Vorderwand 4 ist in Richtung des gezeichneten Doppelpfeils verschieblich an der Tragwand 29 gehalten (hier nicht im einzelnen dargestellt).On the opposite side of the counter roll 2, the leveling chamber 1 is delimited by the supporting wall 29 of a supporting beam and a clamping piece 25 fastened to it. The doctor blade 3 is fixed on the clamping piece 25 by means of the clamping lever 28. The front wall 4 is slidably held on the support wall 29 in the direction of the double arrow (not shown in detail here).

Wie man sieht, ist die Vorderwand 4 in besonderer Weise gestaltet. Ein Aufsatzteil 6 bildet gegen die Stützwalze 2 einen keilförmigen Einlaufzwickel. Sodann erkennt man in der Vorderwand einen Auslaufkanal 10, der - in Strömungsrichtung gesehen - aus einem Abschnitt 8 von relativ großem Durchflußquerschnitt sowie einem Abschnitt von relativ kleinem Durchflußquerschnitt besteht. Abschnitt 8 enthält eine zylindrischen Drehschieber 7.As you can see, the front wall 4 is designed in a special way. An attachment part 6 forms a wedge-shaped inlet gusset against the support roller 2. Then you can see in the front wall an outlet channel 10, which - seen in the direction of flow - consists of a section 8 of a relatively large flow cross section and a section of a relatively small flow cross section. Section 8 contains a cylindrical rotary valve 7.

Der Drehschieber 7 weist eine Vielzahl von Aussparungen 9 auf, die - in richtung der Längsachse des Drehschiebers 7 gesehen - nebeneinander angeordnet sind. Ebenso sind eine Vielzahl von Auslaufkanälen 10 über die gesamte Maschinenbreite vorgesehen, wie z.B. aus Fig. 3 bezüglich der anderen Variante (Öffnungen 10′) hervorgeht. Dabei kann die Länge des rechteckigen Querschnitts der Auslauföffnungen 10 auch wesentlich größer sein. Es ist theoretisch - bei einer relativ kleinen Maschinenbreite - auch möglich, daß nur ein einziger, schlitzförmiger Auslaufkanal vorgesehen ist, der sich über die gesamte Maschinenbreite erstreckt, sowie andererseits auch eine Vielzahl von Drehschiebern.The rotary valve 7 has a plurality of recesses 9, which - seen in the direction of the longitudinal axis of the rotary valve 7 - are arranged side by side. Likewise, a large number of outlet channels 10 are provided over the entire machine width, e.g. 3 with respect to the other variant (openings 10 '). The length of the rectangular cross section of the outlet openings 10 can also be significantly greater. It is theoretically possible - with a relatively small machine width - that only a single, slot-shaped outlet channel is provided, which extends over the entire machine width, and on the other hand also a plurality of rotary valves.

Die in den Figuren 2 und 3 veranschaulichte Variante der Erfindung läßt nur deren Vorderwand erkennen, und zwar im Querschnitt (Fig. 2) sowie in Draufsicht von jener Seite her, von welcher die Papierbahn einläuft (Fig. 3).The variant of the invention illustrated in FIGS. 2 and 3 only reveals its front wall, namely in cross section (FIG. 2) and in plan view from the side from which the paper web runs in (FIG. 3).

Hierbei weist die Vorderwand 24 wiederum Auslaufkanäle 20 auf, und zwar eine Vielzahl dieser Kanäle über die gesamte Maschinenbreite verteilt angeordnet. Den Auflaufkanälen 20 ist eine Schieberleiste 15 zugeordnet, die Fenster 16 aufweist. Die Zahl der Fenster 16 ist genau gleich der Zahl der Auslaufkanäle 20. Die Auslaufkanäle lassen sich dadurch mehr oder weniger öffnen, daß die Schieberleiste 15 quer zur Laufrichtung der Papierbahn entsprechend verschoben wird und die Auslaufkanäle mehr oder minder freigibt.Here, the front wall 24 in turn has outlet channels 20, namely a plurality of these channels arranged distributed over the entire machine width. A slide bar 15, which has windows 16, is assigned to the run-up channels 20. The number of windows 16 is exactly the same as the number of outlet channels 20. The outlet channels can be opened more or less in that the slide bar 15 is displaced transversely to the direction of travel of the paper web and the outlet channels are released more or less.

Es tritt nun die in reichlicher Überdosierung aufgetragene Vordosiermenge der Streichmasse 18 durch den an der Warenbahn gebildeten Spalt 14 in die Egalisierkammer 1 ein. Die von der Rakel 3 abgestrichene, überschüssige Streichmasse strömt durch die Auslaufkanäle 10 bzw. 20 aus der Egalisierkammer 1 wieder heraus und wird einer Auffangwanne zugeführt. Vorzugsweise kann die Kammer auch durch nachgiebige Seitenwände 22 an den Rändern der Warenbahn abgeschlossen sein. Es wird nun ein Spalt mit geringer Spaltweite 14 durch Verschiebung der Vorderwand 4 eingestellt. Der Drehschieber 7 bzw. der Drosselschieber 15 wird dann so eingestellt, daß die überschüssige Streichmasse nur durch die Auslaufkanäle 10 bzw. 20, aber nicht oder nicht in nennenswertem Maße durch den Spalt 14 aus der Egalisierkammer 1 austritt. Hierdurch ergeben sich im Bereich der Warenbahn die gleichmäßigsten Strömungsverhältnisse in der Egalisierkammer 1 einschließlich Spalt 14 und ein einwandfreier Strich ohne Schlieren, Bildung von Apfelsinenhaut, Filmsplitting oder ähnlichem.The pre-metered amount of the coating slip 18 applied in abundant overdosing now enters the leveling chamber 1 through the gap 14 formed on the material web. The excess coating slip wiped off the doctor blade 3 flows out of the leveling chamber 1 through the outlet channels 10 and 20 and is fed to a collecting trough. Preferably, the chamber can also be closed by resilient side walls 22 on the edges of the web. A gap with a small gap width 14 is now set by moving the front wall 4. The rotary valve 7 or the throttle valve 15 is then adjusted so that the excess coating slip only exits from the leveling chamber 1 through the outlet channels 10 or 20, but not or not to a significant extent through the gap 14. This results in the most uniform flow conditions in the leveling chamber 1 including gap 14 and a perfect line without streaks, formation of orange peel, film splitting or the like in the area of the web.

Die in Fig. 4 dargestellte Variante entspricht in ihrem Aufbau im wesentlichen jener in Fig. 1 dargestellten bis auf den einzigen Unterschied, daß sich der Schieber 7 und die Auslaufkanäle 40 der Egalisierkammer 21 nicht in der Vorderwand 26 befinden, sondern in der die Rakel 3 tragenden Rückwand 12.The construction shown in FIG. 4 corresponds essentially to that shown in FIG. 1 except for the only difference that the slide 7 and the outlet channels 40 of the leveling chamber 21 are not in the front wall 26, but in which the doctor blade 3 load-bearing rear wall 12.

Bei der in Fig. 5 dargestellten Ausführungsform befinden sich die Auslaufkanäle 50 in der unteren, d.h. von der Gegenwalze 2 bzw. Warenbahn entfernten Wand 49 der Egalisierkammer 31. Der Drehschieber 7 ist dabei zwischen einer Klemmleiste 48 und einem über die untere Wand 49 hinausragenden Teil der Vorderwand 34 eingeklemmt.In the embodiment shown in Fig. 5, the outlet channels 50 are in the lower, i.e. Wall 49 of leveling chamber 31, which is remote from counter roll 2 or web of material. Rotary slide 7 is clamped between a clamping strip 48 and a part of front wall 34 which projects beyond lower wall 49.

Vorzugsweise wird die Egalisierkammer durch seitliche Stauwände oder Dichtungswände 17, 27, 37 geschlossen. Es ist nicht nötig, daß diese Wände auf der Bahn bzw. der Gegenwalze anliegen (dann müßten sie aus weichem Werkstoff ausgebildet sein, der nachgiebig ist), denn es genügt, daß ein geringer Spalt von 1 bis 2 mm zur der Gegenwalze bzw. Warenbahn 2 besteht. Diese Stauwände werden vorzugsweise in Halteeinrichtungen, die in Form von Fortsätzen 33 der Wände der Egalisierkammer gebildet sind, gehalten. Man kann sie somit auswechseln und den verschiedenen Positionen der Egalisierkammer anpassen. Dies ist insbesondere in den Einzelheiten in Figur 3 dargestellt.The leveling chamber is preferably closed by side baffle walls or sealing walls 17, 27, 37. It is not necessary that these walls rest on the web or the counter roll (then they would have to be made of soft material that is flexible), because it is sufficient that a small gap of 1 to 2 mm to the counter roll or web 2 exists. These baffle walls are preferably held in holding devices which are formed in the form of extensions 33 of the walls of the leveling chamber. It can therefore be replaced and adapted to the different positions of the leveling chamber. This is shown in particular in the details in FIG. 3.

Claims (7)

  1. Device for the coating of a running paper or board web, which wraps a rotating supporting roll, with a precoating for the application of coating colour in excess, a levelling chamber, which has a wall on the inlet side, which in turn releases an inlet slot at the and against the coated web, and which has a metering element at the outlet side, characterized in that the levelling chamber (1, 21,31) has one or more outlet channels (10, 20, 40, 50), and that the outlet channels (10, 20, 40, 50) process throttling elements (7, 15) for the control of the flow rate and/or pressure of the exiting coating colour.
  2. Device according to claim 1, characterized by outlet channels (8, 10, 20) in the same wall (6), which forms the inlet slot (14).
  3. Device according to claim 1, characterized in that the outlet channels (40, 50) are located in at least one of the other walls of the levelling chamber (21, 31) than the inlet-side wall (24, 26, 34).
  4. Device according to one of claims 1 to 3, characterized in that the throttling elements (7, 15) are arranged inside the concerned walls (7, 15) or constructionally and directly allocated to these.
  5. Device according to one of claims 1 to 4, characterized in that one or several gate valves (15) or rotary valves (7) are provided as throttling elements.
  6. Device according to one of claims 1 to 5, characterized by lateral baffle walls (17, 27, 37), which bound the levelling chamber (1, 21, 31) in axial, i.e., also axial direction of the backing roll.
  7. Device according to one of claims 1 to 6, characterized by sealing walls (17, 27, 37) which limit the levelling chamber (1, 21, 31) in axial, i.e., also in axial direction of the supporting roll.
EP88105935A 1987-05-07 1988-04-14 Apparatus for coating a moving paper or cardboard web Expired - Lifetime EP0289824B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105935T ATE72275T1 (en) 1987-05-07 1988-04-14 DEVICE FOR COATING A RUNNING PAPER OR CARDBOARD WEB.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3715154 1987-05-07
DE3715154 1987-05-07
DE3734900 1987-10-15
DE19873734900 DE3734900A1 (en) 1987-05-07 1987-10-15 DEVICE FOR COATING A RUNNING PAPER OR CARDBOARD

Publications (3)

Publication Number Publication Date
EP0289824A2 EP0289824A2 (en) 1988-11-09
EP0289824A3 EP0289824A3 (en) 1989-02-15
EP0289824B1 true EP0289824B1 (en) 1992-01-29

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ID=25855286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105935A Expired - Lifetime EP0289824B1 (en) 1987-05-07 1988-04-14 Apparatus for coating a moving paper or cardboard web

Country Status (7)

Country Link
EP (1) EP0289824B1 (en)
JP (1) JPS6438168A (en)
AT (1) ATE72275T1 (en)
BR (1) BR8802365A (en)
DE (2) DE3734900A1 (en)
ES (1) ES2028926T3 (en)
FI (1) FI90740C (en)

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ES2055823T3 (en) * 1989-06-22 1994-09-01 Voith Gmbh J M EXTENDING DEVICE.
US5376177A (en) * 1993-08-09 1994-12-27 Macmillan Bloedel Limited Coat weight profiling
DE4402108A1 (en) * 1994-01-26 1994-06-30 Voith Gmbh J M Machine for coating a running web, in particular a paper web
DE19723458A1 (en) 1997-06-04 1998-12-10 Voith Sulzer Papiermasch Gmbh Device and method for applying a liquid or pasty medium to a moving surface
DE19821771A1 (en) * 1998-05-14 1999-11-18 Voith Sulzer Papiertech Patent Applicator to coat surface of moving web with liquid or paste coating
DE19854448A1 (en) * 1998-11-25 2000-05-31 Voith Sulzer Papiertech Patent Device and method for applying a liquid or pasty application medium to a running surface

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DE3438181A1 (en) * 1984-10-18 1986-04-24 J.M. Voith Gmbh, 7920 Heidenheim Edge seal for a surface-application device for coating moving webs of material
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Also Published As

Publication number Publication date
FI90740C (en) 1994-03-25
ATE72275T1 (en) 1992-02-15
FI882082A0 (en) 1988-05-04
DE3734900C2 (en) 1993-05-06
FI882082A (en) 1988-11-08
DE3734900A1 (en) 1988-12-01
JPS6438168A (en) 1989-02-08
DE3868130D1 (en) 1992-03-12
BR8802365A (en) 1988-12-13
FI90740B (en) 1993-12-15
ES2028926T3 (en) 1992-07-16
EP0289824A2 (en) 1988-11-09
EP0289824A3 (en) 1989-02-15

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