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WO2001068982A1 - Dispositif d'application - Google Patents

Dispositif d'application Download PDF

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Publication number
WO2001068982A1
WO2001068982A1 PCT/EP2001/002828 EP0102828W WO0168982A1 WO 2001068982 A1 WO2001068982 A1 WO 2001068982A1 EP 0102828 W EP0102828 W EP 0102828W WO 0168982 A1 WO0168982 A1 WO 0168982A1
Authority
WO
WIPO (PCT)
Prior art keywords
application
substrate
application medium
medium
electrode arrangement
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.)
Ceased
Application number
PCT/EP2001/002828
Other languages
German (de)
English (en)
Inventor
Benjamin Méndez-Gallon
Manfred Ueberschär
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26004823&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2001068982(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE2000112347 external-priority patent/DE10012347A1/de
Priority claimed from DE2000112256 external-priority patent/DE10012256A1/de
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Priority to JP2001567851A priority Critical patent/JP2003527237A/ja
Priority to CA002403004A priority patent/CA2403004A1/fr
Priority to EP01913875A priority patent/EP1266093B2/fr
Priority to DE50102327T priority patent/DE50102327D1/de
Priority to AT01913875T priority patent/ATE267293T1/de
Publication of WO2001068982A1 publication Critical patent/WO2001068982A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D21H23/48—Curtain coaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/005—Curtain coaters

Definitions

  • the invention relates to a device for one-sided or two-sided application of liquid or pasty application medium to a running substrate, comprising an application unit arranged at a distance from the substrate, which delivers the application medium to the substrate in the free application medium jet, the substrate providing the surface when applied directly a material web, in particular made of paper or cardboard, and in the case of indirect application, the surface of a transfer element, preferably a transfer roller, which then transfers the application medium to the surface of the material web.
  • the invention can also be used with advantage in other “contactless” application devices, for example application devices with a free jet nozzle application unit, which emits the application medium to the substrate as an application medium jet, which essentially emanates from the application unit due to the ejection pulse given to it by the application unit moved to the ground, the invention will be explained below using the example of a curtain application device, ie an application device in which the application unit delivers the application medium to the substrate as a curtain or veil that moves essentially due to gravity.
  • the application medium is delivered to the substrate in the form of an application medium curtain, which essentially moves from the application unit to the substrate due to gravity. That the curtain application is located at a predetermined distance from the background among other things, the advantage that it is exposed to a lower risk of damage in the event of a web break, for example.
  • Curtain applicators differ fundamentally from other "contactless" applicators, for example free-jet nozzle applicators, in which the movement of the application medium from the applicator to the substrate mainly results from the ejection pulse from the dispensing nozzle of the applicator, since the shape of the curtain emerging from the dispenser nozzle is only that Interplay between the surface tension of the application medium and gravity is exposed.
  • the surface tension tries to draw the curtain, which has a very large surface or circumferential length in relation to its volume or its cross-sectional area, in order to reduce its surface. Only gravity, which tries to stretch the curtain, opposes this effect. It is therefore easy to see that the larger this working width, the more difficult it is to obtain an application medium curtain that is uniformly thick over the entire working width.
  • DE 1 99 03 559 A1 presents a whole series of active principles which are intended to make it possible to weaken the air boundary layer carried along by the material web immediately before a curtain application unit.
  • this document does not address the possibilities of improving the efficiency of these active principles.
  • WO 97/03009 deals with the problem of drying material webs after the application of media, namely printing inks, in particular in gravure web offset and flexographic printing. It proposes to ionize the gas molecules on the surface of the material web by means of a corona discharge and to accelerate it towards an electrode in order to increase the drying efficiency due to the gas exchange on the material web surface associated with this "ion wind".
  • a device for one-sided or two-sided application of liquid or pasty application medium to a running surface comprising a Application surface arranged at a distance, which delivers the application medium to the substrate in the free application medium jet, the substrate being the surface of a material web, in particular made of paper or cardboard, and indirect application being the surface of a transfer element, preferably a transfer roller which then transfers the application medium to the surface of the material web, and in the area of the application unit a device is provided for generating an electric field which exerts a force on the application medium beam moving from the application unit to the substrate.
  • the application medium jet in the application device according to the invention does not move solely under the influence of gravity or not solely under the influence of the ejection pulse from the dispensing nozzle to the substrate , Rather, this movement is supported by an additional force which is exerted by the field generating device on the application medium jet and which tries to stretch the jet on its way from the dispensing nozzle to the substrate (pre-stretching). Therefore, in particular in the case of “curtain coating application works”, either the stability of the jet can be increased with the same distance between the dispensing nozzle and the substrate, or the distance between the dispensing nozzle and the substrate can be chosen to be larger given the desired desired jet stability.
  • the total stretch of the application medium varies from a jet thickness determined by the width of the dispensing nozzle to the thickness of the layer of application medium ultimately applied to the substrate from the product of the pre-stretching of the jet described above on the Away from the dispensing nozzle to the substrate and the contact stretching, which results from the difference between the speed of the jet immediately before it hits the substrate and the running speed of the substrate when the application medium comes into contact with the substrate.
  • the total stretch is composed as evenly as possible of pre-stretching and contact stretching.
  • a force is exerted on the application medium jet by the electric field that has a component that is orthogonal to its direction of movement, i.e. the electrode arrangement attracts the application medium beam.
  • This force component also helps to stabilize the application medium jet against the influence of the air boundary layer carried on the surface of the substrate.
  • the electric field which supports the force of gravity during the acceleration of the application medium jet can be generated in a simple manner in that the application unit is kept at a first predetermined electrical potential, while the substrate is at a second predetermined electrical potential, for example mass or Earth potential, can be kept. In this case, no additional electrodes need to be provided, but it is sufficient to provide the existing devices with electrical connections.
  • an electrode arrangement can be arranged on the upstream side of the application unit and in its vicinity be provided, which is kept at a third predetermined electrical potential.
  • “Additional” means that both the application unit and the electrode arrangement are kept at a predetermined potential which is different from the earth potential.
  • “alternative” means that only the electrode arrangement is kept at a predetermined potential which is different from the earth potential, while the application unit is either earthed or is floating in terms of its electrical potential (“floating potential").
  • the electrode arrangement can comprise at least one flat electrode.
  • the flat electrode can have a plurality of projections or needle tips on its side pointing toward the substrate.
  • the electrode arrangement can comprise a plurality of individual electrodes, preferably needle electrodes, arranged adjacent to one another in the transverse direction of the substrate.
  • a device for generating an electric field is provided downstream of the impact position of the application medium on the substrate.
  • This electrical field exerts a force directed towards the substrate on the application medium applied to the substrate, which leads to displacement of the excess application medium at locations to which too much application medium has been applied.
  • this has made it so far Application medium is supplied to uncovered areas of the substrate, which improves the covering of the substrate with application medium.
  • the thickness of the application layer can be made more uniform.
  • the further field generating device preferably has a further electrode arrangement which is adjacent to the substrate and which is preferably kept at a fourth predetermined electrical potential.
  • Such a force which pulls the application medium applied to the substrate towards the substrate, can in principle also result from residual charging of the application medium applied to the substrate as a result of discharges induced by the first electrode arrangement.
  • the predetermined electrical potential (s) different from the earth potential can have a value of between 5 kV and approximately 60 kV, preferably approximately 30 kV.
  • the subsurface is preferably kept at earth potential.
  • a counter element preferably a counter roller, which supports the material web in the area of the application unit in the case of direct application or on the surface of which the application unit applies the application medium in the case of indirect application, is in contact with an electrode in order to do this to hold the second predetermined electrical potential.
  • the, for example metallic or rubberized, surface of the counter-element is in sliding contact with the electrode.
  • the electrode it is also possible for the electrode to be in electrically conductive contact with a bearing shaft of the counter roll.
  • the material web is kept at the second predetermined electrical potential, that is to say preferably the earth potential, by means of an electrode designed, for example, as a web guiding element.
  • a device for weakening the air boundary layer carried by the substrate is arranged upstream of the electrode arrangement in the running direction of the substrate.
  • the air boundary layer weakening device can comprise a suction device, with the aid of which the air boundary layer can be actively removed from the running surface.
  • a trailing scraper can be provided at the downstream end of the suction device.
  • This drag scraper seals the suction device from the environment and prevents the air boundary layer from moving further towards the application unit.
  • the air entrained in the air boundary layer is dammed up, which at least partially destroys the laminar character of the flow of the air boundary layer.
  • the air boundary layer can thus be weakened particularly effectively, if not completely, by the suction device designed according to the invention.
  • the drag scraper can be designed as a flexible film, preferably made of plastic, sheet metal or a composite material.
  • the flexible film nestles against the surface under the suction effect of the suction device, which on the one hand improves the seal and on the other hand prevents the formation of a new air boundary layer.
  • the drag scraper is made of sheet metal, stainless steel sheet with a thickness of at most 0.1 mm is preferably used.
  • composite scrapers with a Teflon surface coating have also proven to be advantageous.
  • the composite material ensures the required temperature resistance and flexibility, while the surface coating made of Teflon ensures low friction between the drag scraper and the running surface.
  • the drag scraper can be curved in the running direction, which facilitates the elastic evasion and further reduces the friction with the ground.
  • a further electrode arrangement is provided in the area of the suction device, preferably between the downstream end of the suction device and the drag scraper.
  • the air boundary layer carried along by the substrate can also be influenced and in particular weakened with the aid of this further electrode arrangement.
  • the further electrode arrangement comprises a plurality of individual electrodes, preferably needle electrodes, which are arranged adjacent to one another in the transverse direction of the substrate, or if the further electrode arrangement comprises at least one flat electrode which has a plurality of projections or needle tips on its side facing the substrate there are also discharge processes between the tips of the further electrode arrangement and the substrate.
  • the further electrode arrangement be at a distance of between approximately 2 mm and approximately 30 mm from the substrate.
  • the further electrode arrangement can in principle be connected to an external voltage supply. However, it is also possible and structurally even easier to implement if the electrical potential of the further electrode arrangement is kept in suspension (“floating potential”). In this case, the further electrode arrangement is charged as a result of the discharges emanating from the first electrode arrangement and is thus likewise brought to a potential that is different from the ground potential. To reduce the capacity of the further electrode arrangement and for safety reasons, it is proposed that the further electrode arrangement be arranged on the suction device in an electrically insulated manner.
  • the object according to the invention is achieved by a device for one-sided or double-sided application of liquid or pasty application medium to a running substrate, comprising a curtain application unit which delivers the application medium to the substrate as a curtain or veil that moves due to gravity, wherein the substrate is the surface of a material web, in particular of paper or cardboard, with direct application and the surface of a transfer element, preferably a transfer roller, with indirect application, which then transfers the application medium to the surface of the material web, edge guiding elements being provided, which lead lateral edges of the application medium curtain at least on part of its gravity-related movement between the curtain application unit and the substrate.
  • a curtain application unit which delivers the application medium to the substrate as a curtain or veil that moves due to gravity
  • the substrate is the surface of a material web, in particular of paper or cardboard, with direct application and the surface of a transfer element, preferably a transfer roller, with indirect application, which then transfers the application medium to the surface of the material web, edge guiding elements being provided, which lead lateral edges of the application
  • the surface tension of the application medium tries to reduce the surface of the application medium jet, which has an effect in particular in the region of the side edges of the application medium jet and leads to a jet narrowing.
  • This beam constriction can be prevented by providing edge guide elements, since in this case additional adhesive forces act between the application medium and the surface of the edge guide elements, which oppose the narrowing tendency emanating from the surface tension of the application medium.
  • the adhesion between the edge guide elements and the application medium can be improved in that the surface properties of at least one edge guide element are selected such that the wetting or edge angle dependent on the properties of the application medium and the surface of the edge guide elements is less than 90 °. It is also advantageous for the wetting of the edge guide elements if they have a structured surface.
  • the surface of at least one edge guide element can be roughened and / or have a toothed surface, for example in the form of an external thread or also an internal thread.
  • the edge guide elements can be made of glass or metal, for example, since these materials have a sufficiently high surface tension. In the case of metals, however, it should be noted that some metals have a tendency to adsorb water vapor from the atmosphere surrounding them, as a result of which their surface tension drops to the value of the adsorbed water layer.
  • At least one edge guide element is arranged to be displaceable in the transverse direction of the substrate or / and that the angle which an edge guide element includes with the vertical is adjustable.
  • the angular adjustability include pivoting the free ends of the edge guide elements in the transverse direction and / or in the longitudinal direction.
  • the effect of the edge guide elements can also be improved by providing an electrical field, for example by providing an electrode in the vicinity of at least one of the edge guide elements, preferably running essentially parallel to the latter, which electrode is kept at a predetermined electrical potential.
  • Figure 1 is a rough schematic side view to explain the structure and function of an application device according to the invention.
  • Fig. 2 is a schematic view for explaining the structure
  • FIG 3 shows a representation to explain the term “wetting angle” or “contact angle”.
  • An application device is generally designated 10 in FIG. 1. It comprises a curtain applicator 1 2 with a dispensing nozzle 1 4, from which application medium 1 6 in the form of a curtain 1 8 is dispensed onto a substrate U moving in the running direction L.
  • the subsurface U is the surface 20a of a material web 20, which partially wraps around the peripheral surfaces of a support roller 22 in the area of the application unit 12.
  • the application medium 1 6 is accelerated. This leads to a reduction in the thickness of the curtain 18 from the value D in the area of the dispensing nozzle 14 to the value d immediately before the point of impact P on the substrate U (pre-stretching).
  • the application medium 16 Due to the difference between the speed of the application medium curtain 18 immediately before the impact position P and the running speed of the substrate U, the application medium 16 is stretched again when it hits the substrate U, so that the application layer 24 applied to the substrate U ultimately has the thickness s (contact extension).
  • the total stretching of the application medium 16 results as the product of the stretching factors of pre-stretching and contact stretching.
  • the application medium 16 is usually stretched more when it hits the underground U than on the way from the dispensing nozzle 14 to the underground U, since the falling distance between the dispensing nozzle 14 and the underground U cannot choose any size.
  • excessive contact stretching has a disadvantageous effect on the uniformity of the application layer 24 applied to the substrate U.
  • the application device 10 now offers a possibility by means of which one can either increase the pre-stretching of the curtain 18 with the same drop height between the dispensing nozzle 14 and the underground U or how one can reduce the drop height between the dispensing nozzle 14 and the underground U with the same pre-stretching and thus reduce the Curtain 1 8 can stabilize.
  • the application medium curtain 18 on its way from the dispensing nozzle 14 to the substrate U is not only left to gravity, but electrostatic forces are additionally exerted on it. This strengthening of the curtain 18 stretching forces has, since the surface tension of the application medium 1 6, the curtain 18 in the sense of a reduction in its surface tries to contract, remains constant, a higher stability of the application medium curtain 1 8 results.
  • the electrostatic forces could be provided by applying a first predetermined electrical voltage V 1 to the housing of the applicator 12 and holding the support roller 22 at the earth or ground potential V E or V 2 .
  • V 1 a first predetermined electrical voltage
  • V E or V 2 the earth or ground potential
  • an electrode arrangement 30 is provided in the running direction L directly in front of the application unit 1 2, which can for example comprise a flat electrode extending in the transverse direction Q with a plurality of needle tips, or formed by a plurality of needle electrodes 32 arranged adjacent to one another in the transverse direction Q. can be.
  • a predetermined electrical voltage V 3 is applied to the electrode arrangement 30, while the parts of the application device 10 surrounding it, namely the application unit 12, the support roller 22 and a suction box 34 provided upstream of the electrode arrangement 30 with respect to the running direction L for weakening a material web 20 entrained air boundary layer are kept at ground or earth potential V E. .
  • the suction box 34 serves to weaken the air boundary layer G.
  • a drag scraper 36 is provided on the outlet side of this suction box 34, which is in sliding contact with the surface 20a of the material web 20 and seals the suction area of the suction box 34 on the outlet side.
  • the drag scraper 36 can be made, for example, from a composite material coated with Teflon. Due to the use of a composite material, the scraper 36 has sufficient temperature resistance and flexibility, and due to the surface coating with Teflon, there is sufficient low friction.
  • a further electrode arrangement 40 is now provided between this drag scraper 36 and the suction box 34, which is attached to the suction box 34 via electrical insulation 42.
  • the further electrode arrangement 40 can in turn be formed either by a flat electrode with a plurality of needle tips or a plurality of needle electrodes arranged adjacent to one another in the transverse direction Q.
  • the electrode arrangement 40 can in principle be connected to an external voltage supply. In the exemplary embodiment shown, however, it is in a floating state with regard to its electrical potential, but is charged as a result of the discharges E emanating from the electrode arrangement 30 and thus likewise brought to a potential that is different from the ground potential.
  • the charging of the electrode arrangement 40 is sufficient to also allow discharges e to occur between the tips of the electrode arrangement 40 and the base U. These discharges e disturb the laminar flow of the air boundary layer G and convert it at least partially into a turbulent flow. This facilitates the suction extraction of the air boundary layer G from the surface 20a of the material web and thus improves the effectiveness of the suction box 34.
  • electrical forces can also contribute to improving the leveling and fixing of the application layer 24 on the material web 20.
  • a further electrode arrangement in the form of a plate electrode 46 can be provided, which is kept at a predetermined electrical potential V 4 .
  • a relatively homogeneous electric field is formed between this plate electrode 46 and the support roller 22 held at ground potential, which exerts a force directed toward the substrate U on the application medium.
  • this force causes the excess application medium to be displaced and thus to make the application layer 24 more uniform.
  • areas of the material web surface 20a that have not been covered up to now can occur as a result this force are covered for the first time with application medium 16.
  • the force mentioned above also improves the bond that the application medium 16 with the surface 20a of the material web 20 forms.
  • the backup roller 22 can be held at the ground potential V E in different ways.
  • the roller axis A can be connected to a sliding contact, as described, for example, in DE 1 97 33 333 A1.
  • a sliding contact 50 connected to the surface 22a of the roller 22 can also be provided.
  • the material web 20 can also be held at ground potential V E via contacts formed by web guiding elements 48, for example.
  • FIG. 2 shows a view of the application device 10 that is viewed in the direction of travel L.
  • the surface tension of the application medium 1 6 that is trying to pull the curtain 1 8 together mainly affects the edge areas 1 8 of the curtain 1 8. There it leads to a lateral contraction of the curtain 1 8 and its thickening.
  • guide strips 54 are provided in the embodiment shown in FIG. 2, which are attached to the application unit 1 2 in such a way that they catch the curtain 1 8 emerging from the dispensing nozzle 1 4 and on its way down to just before the surface 20 a the material web 20 lead.
  • the contact angle or wetting angle ⁇ of a droplet T of application medium 16 on the surface 54a of the marginal ridges 54 should be one, have the lowest possible value. This can be achieved, for example, by producing the surface of the edge strips 54 from a material with a high surface tension.
  • the wetting between application medium 16 and edge strips 54 can be achieved by a roughened for example, toothed surface structure of the edge strips 54 can be improved. This can be achieved, for example, by using threaded rods as edge strips 54.
  • a further possibility in order to be able to improve the adhesion of the application medium 1 6 to the edge strips 54 is to provide electrode strips 56 essentially parallel to the edge strips 54, to which a predetermined electrical voltage V 5 is applied. As a result, an attractive force is exerted on the application medium, as has been described above for the arrangement according to FIG. 1.
  • edge strips 54 To the edge strips 54 to the desired working width, i.e. To be able to adapt the respective present width of the material web 20, these are arranged on the applicator 12 in the transverse direction Q, which is indicated in FIG. 2 by the arrows q.
  • the edge strips 54 can also be arranged on the applicator 12 in a pivotable manner, namely about axes which run essentially parallel to the longitudinal direction L and / or the transverse direction Q, in FIG. 2 only a pivotability in the transverse direction Q by the arrows I in FIG. ie about an axis running essentially parallel to the longitudinal direction L is indicated.

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Seal Device For Vehicle (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Abstract

L'invention concerne un dispositif (10) pour appliquer, directement ou indirectement sur une ou deux faces, un milieu (16) d'enduction pâteux ou fluide sur une bande de matériau (20), notamment en papier ou en carton. Ce dispositif comprend un système d'application (12), qui distribue le milieu (16) d'enduction sous forme d'un filet (18) libre sur la bande de matériau (20). L'invention est caractérisée en ce que dans la zone du système d'application (12) se trouve un dispositif (30) pour produire un champ électrique qui exerce une force de soutien sur le mouvement du filet (18) d'enduction, qui se déplace du système d'application (12) vers la bande de matériau (20). En outre ou en solution de rechange, des éléments de guidage des bords guident les bords latéraux du rideau (18) d'enduction, au moins pour une partie de son mouvement conditionné par la force de gravitation.
PCT/EP2001/002828 2000-03-14 2001-03-13 Dispositif d'application Ceased WO2001068982A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2001567851A JP2003527237A (ja) 2000-03-14 2001-03-13 塗布装置
CA002403004A CA2403004A1 (fr) 2000-03-14 2001-03-13 Dispositif d'application
EP01913875A EP1266093B2 (fr) 2000-03-14 2001-03-13 Dispositif d'application et procede
DE50102327T DE50102327D1 (de) 2000-03-14 2001-03-13 Auftragsvorrichtung und verfahren
AT01913875T ATE267293T1 (de) 2000-03-14 2001-03-13 Auftragsvorrichtung und verfahren

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2000112347 DE10012347A1 (de) 2000-03-14 2000-03-14 Vorhang- Auftragsvorrichtung
DE10012256.6 2000-03-14
DE2000112256 DE10012256A1 (de) 2000-03-14 2000-03-14 Auftragsvorrichtung
DE10012347.3 2000-03-14

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10/221,517 A-371-Of-International US20030136342A1 (en) 2000-03-14 2001-03-13 Application device
US10/802,495 Continuation US7247206B2 (en) 2000-03-14 2004-03-17 Medium application device

Publications (1)

Publication Number Publication Date
WO2001068982A1 true WO2001068982A1 (fr) 2001-09-20

Family

ID=26004823

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/002828 Ceased WO2001068982A1 (fr) 2000-03-14 2001-03-13 Dispositif d'application

Country Status (6)

Country Link
EP (1) EP1266093B2 (fr)
JP (1) JP2003527237A (fr)
AT (1) ATE267293T1 (fr)
CA (1) CA2403004A1 (fr)
DE (1) DE50102327D1 (fr)
WO (1) WO2001068982A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1389647A1 (fr) * 2002-08-12 2004-02-18 Voith Paper Patent GmbH Appareil pour l'application d'un médium de couchage sur un substrat en mouvement
EP1403429A1 (fr) * 2002-09-27 2004-03-31 Voith Paper Patent GmbH Dispositif d'enduction pour déposer un materiau fluide ou pâteux sur une bande en mouvement
WO2005058509A3 (fr) * 2003-12-18 2005-12-29 Voith Paper Patent Gmbh Procede de couchage en rideau ou voile d'un cote ou des deux cotes sur la surface d'une bande de matiere defilante, notamment en papier ou carton
WO2006008336A1 (fr) * 2004-07-20 2006-01-26 Metso Paper, Inc. Unite et procede de couchage par voile

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Publication number Priority date Publication date Assignee Title
US20050098285A1 (en) 2002-06-24 2005-05-12 Richard Aust Machine for making/treating a sheet of material
DE102024113445A1 (de) 2024-05-14 2025-11-20 Andritz Küsters Gmbh Verfahren und Vorrichtung zum Auftragen eines Auftragsmediums auf eine bewegte Papier- oder Kartonbahn

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US3369522A (en) * 1965-01-18 1968-02-20 Continental Oil Co Curtain coating apparatus
EP0440279A1 (fr) * 1990-01-29 1991-08-07 Agfa-Gevaert N.V. Dispositif pour l'enduction sous forme de rideau d'éléments photographiques
EP0826825A2 (fr) * 1996-08-07 1998-03-04 Voith Sulzer Papiermaschinen GmbH Dispositif d'enduction pour appliquer de façon directe ou indirecte une sauce de couchage liquide ou pâteuse sur une bande en mouvement, particulièrement papier ou carton
DE19716466A1 (de) * 1997-04-21 1998-10-22 Bachofen & Meier Ag Verfahren und Vorrichtung zum Auftragen von Dispersionen auf eine Materialbahn
DE19735588A1 (de) * 1997-04-21 1999-02-18 Jagenberg Papiertech Gmbh Verfahren und Vorrichtung zum Auftragen einer Pigmentstreichfarbe auf eine Papier- oder Kartonbahn
DE19755625A1 (de) * 1997-12-15 1999-07-01 Jagenberg Papiertech Gmbh Schlitzdüse zum Beschichten von Materialbahnen, insbesondere Papier- oder Kartonbahnen mit Pigmentstreichfarbe
DE19803240A1 (de) * 1998-01-28 1999-07-29 Voith Sulzer Papiertech Patent Farbvorhang-Auftragsvorrichtung
EP0937815A1 (fr) * 1998-02-19 1999-08-25 Voith Sulzer Papiertechnik Patent GmbH Dispositif et procédé pour d'enduction d'une substance liquide ou pâteuse sur une bande en mouvement, particulièrement en papier ou en carton
DE19903559A1 (de) * 1998-01-30 1999-10-21 Mitsubishi Paper Mills Ltd Verfahren und Apparatur zur Vorhangbeschichtung

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CA2403004A1 (fr) 2001-09-20
ATE267293T1 (de) 2004-06-15
DE50102327D1 (de) 2004-06-24
EP1266093B1 (fr) 2004-05-19
EP1266093B2 (fr) 2007-02-07
EP1266093A1 (fr) 2002-12-18
JP2003527237A (ja) 2003-09-16

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