WO2005059250A1 - Mecanisme de coucheuse a nappe - Google Patents

Mecanisme de coucheuse a nappe Download PDF

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Publication number
WO2005059250A1
WO2005059250A1 PCT/EP2004/053488 EP2004053488W WO2005059250A1 WO 2005059250 A1 WO2005059250 A1 WO 2005059250A1 EP 2004053488 W EP2004053488 W EP 2004053488W WO 2005059250 A1 WO2005059250 A1 WO 2005059250A1
Authority
WO
WIPO (PCT)
Prior art keywords
application
media
curtain applicator
curtain
collecting
Prior art date
Application number
PCT/EP2004/053488
Other languages
German (de)
English (en)
Inventor
Christoph Henninger
Martin Tietz
Volker Fäthke
Stefan Reich
Uwe Fröhlich
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
Application filed by Voith Paper Patent Gmbh filed Critical Voith Paper Patent Gmbh
Publication of WO2005059250A1 publication Critical patent/WO2005059250A1/fr

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
    • B05D1/305—Curtain coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/22—Paper or cardboard
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating

Definitions

  • the invention relates to a curtain applicator for one or both sides applying at least two liquid or pasty media on a running surface, wherein the curtain applicator dispenses the at least two application media in the form of substantially gravity-related moving curtains to the moving surface.
  • the surface can be the surface of a material web, in particular of paper or cardboard, and, in the case of indirect application, the surface of a transfer element, for example an applicator roll, which delivers the application medium to the surface of the material web.
  • curtain applicators are known from the prior art. Also, commissioned works are already known with which several application media can be applied. In these known curtain coater a common tray for collecting the application media is present.
  • This drip tray serves to prevent when starting or stopping the curtain applicator or to achieve no-line edges on the running surface, that the spreading media on the current surface to be swept (transfer element in indirect order, or the material web, in particular of paper or cardboard , with direct order) and can pollute the components or the environment.
  • the spreading media on the current surface to be swept transfer element in indirect order, or the material web, in particular of paper or cardboard , with direct order
  • the expensive order media can thus hardly be used for another coating order. Separating each other is extremely difficult, so these mixed media must be disposed of. Apart from the high purchase prices, the disposal costs for these media are also very high.
  • the invention has the object to improve a curtain applicator of the type mentioned in that the application media can be used again in the future after collecting each, and no longer need to be disposed of.
  • the invention solves this problem by a curtain applicator of the type mentioned, in which according to the invention at least two movable collecting devices are provided for collecting at least two application media.
  • media of a kind but with different composition or completely different media types are catchable and reusable.
  • Medium types are, for example, pigment-containing coating color, glue, starch, impregnating agent, etc.
  • Each of the at least two movable collecting devices can receive one of the at least two application media.
  • the at least two application media are thus collected separately by the at least two movable collecting devices, and can consequently be recirculated to the commissioned unit and reused for another coating application. So far, the high disposal costs and the acquisition costs for new order media are eliminated or can be minimized.
  • the at least two collecting devices can be moved separately. In this way it is possible to apply selected application media on a running surface and to record the other application media with one of the collecting devices. Separate job media can thus be started and stopped at different times.
  • the curtain applicator can be provided with at least two nozzles for applying the at least two application media, wherein the at least two nozzles in a common housing, spaced to each other, are summarized.
  • the combination of several nozzles in a common housing prevents mixing of the application media immediately after their exit from the respective nozzles.
  • such a spaced arrangement of the nozzles can prevent mixing of the applied different application media.
  • a single nozzle is provided with at least one separating element for separating the emerging from the single nozzle at least two application media.
  • a lesser design effort is possible.
  • it can be applied in a confined space several media. This construction also allows better adhesion or networking of the applied media with each other.
  • the separating element for separating the at least two application media in the single nozzle can be realized in a particularly simple and inexpensive manner, if e.g. a thin separating plate, a plastic film o.a. is.
  • the at least two collecting devices collide with one another.
  • the at least two collecting devices may be mounted at different heights.
  • Moving devices such as piston-cylinder arrangements and / or linear guides and / or spindle drives and the like, have proven to be particularly expedient for the separate movement of the at least two collecting devices.
  • the at least two reception devices can be at least as wide as the formed by the emerging from the at least two nozzles curtains.
  • the at least two collecting devices can be designed in the shape of troughs and / or channels.
  • the application media to be collected can be picked up optimally by the at least two collecting devices and without a subset of the spreading media running down the outer edge of the collecting devices.
  • Fig. 1 is a side view of a first embodiment of a curtain applicator according to the invention
  • FIG. 2 shows a side view of a second embodiment of a curtain applicator according to the invention.
  • Fig. 1 z eigt a curtain applicator 10 for applying liquid curtains 11 and 12 forming different application media A and B, consisting of, for example, coating color, glue or impregnating agent, etc.
  • the curtain applicator 10 has two nozzles 13 and 14, from which the different application media A and B exit to substantially gravity due to a running surface 15, the direct order the Surface of a material web, in particular of paper or cardboard, and for indirect application, the surface of a transfer element, such as an applicator roll, which discharges the application medium to the surface of the material web to be applied.
  • a transfer element such as an applicator roll
  • a material web 15 is selected from paper, which runs here in the direction of arrow L via guide rollers 30 at a Radiogschwindtechnik in a machine for their production and / or finishing and is coated in a direct process.
  • the operating or web speed is about 2000m / min.
  • Aircut 40 In the direction L before the commissioned work 10 a so-called Aircut 40 is placed in Figurl and therefore drawn in for the sake of completeness. With this device, or Aircut 40 is an undesirable air boundary layer, which is registered with the high-speed material web 15 with and would affect the media curtains negative, removed by stripping and / or suction and / or by the action of electrostatic forces.
  • trough-shaped collecting devices 16 and 17 are arranged in order to prevent the application media from reaching the material web 15 when starting or stopping the curtain application unit 10. Due to the separate trays 16 and 17, the curtains 11 and 12 generating media A and B can be collected separately in order to use them later for another coating order again.
  • Each of the trays 16 and 17 is provided with a separate moving means 18 and 19 (piston-cylinder units are shown in the example) for driving them individually and for moving them as indicated by a double-headed arrow.
  • the tray 16 for example, under the curtain 1, whereby, for example, a coating application with medium B is prevented on the material web 15 from the nozzle 13, while a coating order from the nozzle 14 with medium A is still possible because the The trough 17 associated with the nozzle 14 can then not be placed under the curtain 12.
  • the nozzles 13 and 14 are combined in a common housing 100.
  • the summary of the nozzles 13 and 14 in a common housing 100 prevents mixing of the curtains 11 and 12 immediately after their exit from the nozzles 13 and 14. Due to the relatively large distance of the nozzles 13 and 14 to each other also a mixing of the material web 15 applied application media A and B can be prevented, wherein first the medium A is applied, and optionally can dry before the next medium B or possibly other media are applied.
  • FIG. 2 shows a curtain application unit 20, in which the application media A and B form liquid curtains 22 and 23 after they exit a nozzle 21.
  • the curtains 22 and 23 can be captured by trough-shaped receiving means 24 and 25, whereby the troughs 24 and 25 can be moved away by means of the movement means 18 and 19 under the curtains 22 and 23 or by them as the drawn double-headed arrow.
  • the nozzle 21 is provided with a separating element 26, for example a thin sheet or a film made of plastic, in order to separate the media A and B forming the curtains 22 and 23 within the nozzle and as they emerge from the nozzle 21. Consequently, mixing of the two coating media A and B in the nozzle 21 and its exit from the nozzle 21 can be avoided by the separating element 26.
  • a separating element 26 for example a thin sheet or a film made of plastic
  • the two application media can be applied to the material web 15 with the nozzle 21 in the smallest possible space, better adhesion of the applied application media to one another is possible with the nozzle 21. Since multiple application media can be applied simultaneously with the nozzle 21, this design is less expensive than those designs that require multiple nozzles.
  • the trays 24 and 25 are mounted at different heights to the application media A and B despite the small distance of Curtains 22 and 23 to safely receive each other, and to exclude a collision of the trays 24 and 25.
  • the movement means 18 and 19 for moving the troughs 16, 17, 24 and 25 are as illustrated in Figure 1, designed as a piston-cylinder assemblies.
  • the trays 16, 17, 24 and 25 are at least as wide as the male curtains 11, 12, 22 and 23.
  • the application media can not reach the web 15 when the trays 16, 17, 24 and 25 under the curtains eleventh , 12, 22 and 23 are placed.
  • the troughs 16, 17, 24 and 25 have at least one sloping sidewall to improve the shrinkage and collection of the medium, but also to prevent a subset of the application media from running down the outer edge of the troughs 16, 17, 24 and 25 and leads to contamination.

Landscapes

  • Coating Apparatus (AREA)

Abstract

L'invention concerne un mécanisme de coucheuse à nappe permettant d'appliquer au moins deux agents d'application. Dans le cas des mécanismes de couche à nappe actuels, tous les agent d'application sont recueillis dans une cuve commune si bien que les agents d'application ne peuvent plus être utilisés pour l'application d'une autre couche. L'invention vise à créer un mécanisme de coucheuse à nappe qui permette d'utiliser les agents d'application recueillis pour l'application d'une autre couche. A cet effet, le mécanisme de coucheuse à nappe (10) présente selon l'invention deux dispositifs collecteurs (16, 17) mobiles destinés à recueillir les deux agents d'application (A, B) ou plus.
PCT/EP2004/053488 2003-12-17 2004-12-15 Mecanisme de coucheuse a nappe WO2005059250A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003159117 DE10359117A1 (de) 2003-12-17 2003-12-17 Vorhangauftragswerk
DE10359117.6 2003-12-17

Publications (1)

Publication Number Publication Date
WO2005059250A1 true WO2005059250A1 (fr) 2005-06-30

Family

ID=34683439

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/053488 WO2005059250A1 (fr) 2003-12-17 2004-12-15 Mecanisme de coucheuse a nappe

Country Status (2)

Country Link
DE (1) DE10359117A1 (fr)
WO (1) WO2005059250A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000715A1 (fr) * 2007-06-26 2008-12-31 Voith Patent Gmbh Procédé d'application et ensemble d'application à rideaux
EP2070600A3 (fr) * 2007-12-05 2010-03-24 Voith Patent GmbH Procédé de revêtement d'une bande en mouvement de papier, de carton ou d'une autre matière fibreuse à l'aide d'un revêtement de rideau
CN110394283A (zh) * 2019-07-31 2019-11-01 江苏塔菲尔新能源科技股份有限公司 锂电池涂布回收系统及其浆料分离回收装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008042379A1 (de) 2008-09-26 2010-04-01 Voith Patent Gmbh Vorhang-Auftragswerk
DE102008054912A1 (de) 2008-12-18 2010-06-24 Voith Patent Gmbh Vorhang-Auftragswerk
DE102008054892A1 (de) 2008-12-18 2010-06-24 Voith Patent Gmbh Vorhang-Auftragswerk
DE102010031556A1 (de) 2010-07-20 2012-01-26 Voith Patent Gmbh Vorhangauftragswerk

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851268A (en) * 1988-01-29 1989-07-25 Eastman Kodak Company Curtain coating start-up method and apparatus
US5017408A (en) * 1990-08-08 1991-05-21 Eastman Kodak Company Curtain coating start/finish method and apparatus
US5773093A (en) * 1995-06-02 1998-06-30 Mitsubishi Paper Mills Limited Apparatus for controlling application of excess coating liquid in curtain coating and method of coating
DE19823686A1 (de) * 1997-05-28 1999-01-07 Mitsubishi Paper Mills Ltd Verfahren und Einrichtung zum Florstreichen
DE19903559A1 (de) * 1998-01-30 1999-10-21 Mitsubishi Paper Mills Ltd Verfahren und Apparatur zur Vorhangbeschichtung
US20020066404A1 (en) * 2000-11-22 2002-06-06 Manfred Ueberschar Curtain applicator
EP1319747A2 (fr) * 2001-12-13 2003-06-18 Dow Global Technologies Inc. Procédé et dispositif de revêtement au rideau
EP1375746A1 (fr) * 2002-06-21 2004-01-02 Voith Paper Patent GmbH Procédé et dispositif pour enduire une ou deux faces avec un matériau fluide jusqu' au pâteux
EP1475162A2 (fr) * 2003-05-06 2004-11-10 Voith Paper Patent GmbH Dispositif de revêtement multicouche par rideau

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540570A1 (de) * 1975-09-11 1977-03-17 Brueckner Apparatebau Gmbh Vorrichtung zum aufbringen eines fluessigkeitsfilmes auf eine kontinuierlich transportierte, breitgefuehrte warenbahn
JP3997341B2 (ja) * 1997-12-22 2007-10-24 株式会社Ｉｈｉ 塗工装置
JP3903570B2 (ja) * 1998-01-20 2007-04-11 石川島播磨重工業株式会社 塗工方法及び装置
JP3553527B2 (ja) * 2001-06-29 2004-08-11 三菱重工業株式会社 カーテンコータ及びカーテンコート方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851268A (en) * 1988-01-29 1989-07-25 Eastman Kodak Company Curtain coating start-up method and apparatus
US5017408A (en) * 1990-08-08 1991-05-21 Eastman Kodak Company Curtain coating start/finish method and apparatus
US5773093A (en) * 1995-06-02 1998-06-30 Mitsubishi Paper Mills Limited Apparatus for controlling application of excess coating liquid in curtain coating and method of coating
DE19823686A1 (de) * 1997-05-28 1999-01-07 Mitsubishi Paper Mills Ltd Verfahren und Einrichtung zum Florstreichen
DE19903559A1 (de) * 1998-01-30 1999-10-21 Mitsubishi Paper Mills Ltd Verfahren und Apparatur zur Vorhangbeschichtung
US20020066404A1 (en) * 2000-11-22 2002-06-06 Manfred Ueberschar Curtain applicator
EP1319747A2 (fr) * 2001-12-13 2003-06-18 Dow Global Technologies Inc. Procédé et dispositif de revêtement au rideau
EP1375746A1 (fr) * 2002-06-21 2004-01-02 Voith Paper Patent GmbH Procédé et dispositif pour enduire une ou deux faces avec un matériau fluide jusqu' au pâteux
EP1475162A2 (fr) * 2003-05-06 2004-11-10 Voith Paper Patent GmbH Dispositif de revêtement multicouche par rideau

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000715A1 (fr) * 2007-06-26 2008-12-31 Voith Patent Gmbh Procédé d'application et ensemble d'application à rideaux
DE102007029646A1 (de) 2007-06-26 2009-01-08 Voith Patent Gmbh Auftragsverfahren sowie Vorhangauftragswerk
EP2070600A3 (fr) * 2007-12-05 2010-03-24 Voith Patent GmbH Procédé de revêtement d'une bande en mouvement de papier, de carton ou d'une autre matière fibreuse à l'aide d'un revêtement de rideau
CN110394283A (zh) * 2019-07-31 2019-11-01 江苏塔菲尔新能源科技股份有限公司 锂电池涂布回收系统及其浆料分离回收装置

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Publication number Publication date
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