EP0740197A1 - Procédé et appareil pour le revêtement par rideau d'un support en mouvement - Google Patents

Procédé et appareil pour le revêtement par rideau d'un support en mouvement Download PDF

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Publication number
EP0740197A1
EP0740197A1 EP95810277A EP95810277A EP0740197A1 EP 0740197 A1 EP0740197 A1 EP 0740197A1 EP 95810277 A EP95810277 A EP 95810277A EP 95810277 A EP95810277 A EP 95810277A EP 0740197 A1 EP0740197 A1 EP 0740197A1
Authority
EP
European Patent Office
Prior art keywords
curtain
knife
edge
plates
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95810277A
Other languages
German (de)
English (en)
Other versions
EP0740197B1 (fr
Inventor
Markus Gueggi
Maurice Pasquier
Peter Schweizer
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.)
Ilford Imaging Switzerland GmbH
Original Assignee
Ilford AG
Ilford Imaging Switzerland 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=8221736&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0740197(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ilford AG, Ilford Imaging Switzerland GmbH filed Critical Ilford AG
Priority to DE59506354T priority Critical patent/DE59506354D1/de
Priority to EP98100164A priority patent/EP0841588B1/fr
Priority to EP98100165A priority patent/EP0841589B1/fr
Priority to EP19950810277 priority patent/EP0740197B1/fr
Publication of EP0740197A1 publication Critical patent/EP0740197A1/fr
Application granted granted Critical
Publication of EP0740197B1 publication Critical patent/EP0740197B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/007—Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
    • B05C5/008—Slide-hopper curtain coaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • 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

Definitions

  • the present invention relates to a method and a device for curtain coating a moving support with a liquid coating material according to the preamble of claim 1.
  • This coating in particular with a large width of the machine and high speed, there are a large number of problems relating to the curtain stabilize and bring it onto the surface as evenly as possible.
  • One of these problems is that when the curtain falls freely, it has to be stabilized on the side, otherwise the curtain contracts under the effect of the surface tension towards the center.
  • One of these means is to provide side guides, but the friction of the liquid film on the side guide creates an unfavorable speed profile at the edge of the curtain because the speed of the curtain is zero on the side guide.
  • a method for curtain coating in which the rinsing liquid is drawn off from the edges of the falling curtain, the edge guides near the point where the falling curtain hits the support with a Vacuum source are connected.
  • the edge guides consist of hollow tubes, each of which has a slot facing the curtain, the rinsing liquid being introduced into the interior of the tubes and passing through the slots into the edge regions of the curtain.
  • the curtain even if it is forced into the vertical case by rod-shaped side guides, can be deformed immediately next to it, for example by existing surface tension differences, in such a way that it can fall onto rear wall parts, which leads to serious contamination and malfunctions can.
  • EP-A-606 038 also discloses a device for removing the curtain edges with plates working as knives, the plates being arranged parallel to the curtain and the curtain edge being suctioned off there.
  • the height of these knives is very small and there is a risk that part of the coating solution gets under the entire device, which leads to contamination.
  • the problem of the thickened edge is not solved there.
  • a second object of the present invention is to provide a method and a device with which a uniform coating with clean edges can be achieved without substantial loss of material.
  • This second object is achieved with the method according to independent patent claims 3 and 9. Further advantages are defined in independent claim 4 and in the dependent claims.
  • FIG. 1 part of a coating device is shown schematically as part of a system.
  • the pouring plates 1 can be seen, see also FIG. 4, with the side limiting plates 2 attached to the side, with which the pouring solution 3 is limited for the respective pouring width.
  • the free fall of the curtain begins on the lip 4 of the foundry front plate 5. From this point on, the curtain 6 must be stabilized by the side guides 7. Without these side guides, the curtain would contract towards the center under the effect of surface tension.
  • the unfavorable speed profile in the side guides is influenced by the fact that a liquid film, for example made of water or a water / gelatin solution, is introduced on both sides of the curtain in order to reduce the edge effect.
  • a liquid film for example made of water or a water / gelatin solution
  • this liquid film has a certain width and is then separated and drained off from the casting solution curtain by means of a device. This is done here with an outward-facing plate over which water flows and which drains the rinsing liquid and part of the curtain liquid into an area to the side outside of the casting roll.
  • the coating device also has a carrier 8 to be coated, which is guided around the casting roll 9 and under the coating device. The direction of rotation of the casting roll is also shown in FIG.
  • the side-limiting liquid film is no longer introduced parallel to the casting solution or the casting curtain, but rather transversely thereto, that is, see in particular FIG. 3, the liquid film 10 is introduced parallel to the flow-limiting front wall 7 ′ of the side guide 7, the liquid film 10 flows in a groove 14 in the side guide and forms part of the front wall of the side guide.
  • the liquid for example water or a water / gelatin solution, is introduced through a metering slot 11, the slot end 12 being shaped in such a way that the liquid film 10 flows down the groove in the side guide regularly and with a uniform thickness.
  • a knife 15 is attached, the outer geometry of which is known per se.
  • this knife also has a front edge 16 which forms an acute angle ⁇ of 0-30 °, for example 10 °, with respect to the inside of the side guide.
  • a suction slot 18 is arranged in the side guide, the height of which is 0.05-0.5 mm, see FIG. 2.
  • This slot 18 is connected via a suction channel 19 to a fan or other vacuum system in order to prevent the cut off the curtain edge and the liquid film 10.
  • a few mm of the curtain are cut off with the knife 15. Sucking off the liquid film and the edge of the curtain significantly stabilize the curtain.
  • the gelatin is thinned and thus the incrustation of the suction paths is prevented.
  • a suction slot 20 is arranged on the lower edge of the knife, which is connected via a channel 21 to a vacuum system which is the same as for the suction slot 18 can be.
  • This channel preferably also contains a water rinse. As shown in Figure 2, this creates an edge of the coating 22 that can be used without loss.
  • the knife height on the cutting edge S of the knife can be 1-15 mm and it is advisable to use the suction slit from a knife height of 3 mm, whereas with a knife height of 1-3 mm there is no need for a suction slit.
  • the delimiting edge 25 of the side delimitation plates is not vertical, but has a cutting edge 24, this cutting edge enclosing an angle of, for example, 60 °, that is to say that the two edges of the cutting edge unite with the perpendicular to the coating 22 Have angles ⁇ and ⁇ of 10 - 80 °, preferably 60 °.
  • the distance H between the cutting edge 24 and the surface of the foundry plates is 0.3-2.5 mm, preferably 0.8 mm. This minimizes the effect of surface tension reduced, and lateral displacements of the casting solution are largely avoided.
  • the device according to the invention can be varied with respect to the stated mass and can be adapted to the most varied of coating conditions and casting solution combinations. While every single measure already leads to extensive improvements in terms of the quality of the coating, a combination of all improvements results, such as vacuuming off the cut edges, vacuuming off the casting solution jammed with the knife and avoiding the layer thickness differences caused by the surface tension, and guiding a thin liquid film along the side boundary plates a particularly stable coating, the edges of which no longer cause material loss or drying problems.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
EP19950810277 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement Expired - Lifetime EP0740197B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59506354T DE59506354D1 (de) 1995-04-26 1995-04-26 Verfahren und Vorrichtung zur Vorhangbeschichtung eines bewegten Trägers
EP98100164A EP0841588B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
EP98100165A EP0841589B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
EP19950810277 EP0740197B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19950810277 EP0740197B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP98100164A Division EP0841588B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
EP98100165A Division EP0841589B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement

Publications (2)

Publication Number Publication Date
EP0740197A1 true EP0740197A1 (fr) 1996-10-30
EP0740197B1 EP0740197B1 (fr) 1999-07-07

Family

ID=8221736

Family Applications (3)

Application Number Title Priority Date Filing Date
EP98100165A Expired - Lifetime EP0841589B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
EP98100164A Revoked EP0841588B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
EP19950810277 Expired - Lifetime EP0740197B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP98100165A Expired - Lifetime EP0841589B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
EP98100164A Revoked EP0841588B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement

Country Status (2)

Country Link
EP (3) EP0841589B1 (fr)
DE (1) DE59506354D1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0907103A1 (fr) * 1997-10-03 1999-04-07 Troller Schweizer Engineering AG Procédé et dispositif pour le revêtement par rideau d'un support en mouvement
EP0858842A3 (fr) * 1997-02-05 1999-07-14 Eastman Kodak Company Evacuation du bord avec des moyens de blocage du flux d'air pour l'enduction au rideau
EP0858843A3 (fr) * 1997-02-05 1999-07-14 Eastman Kodak Company Evacuation du bord pour l'enduction au rideau
EP1239078A1 (fr) * 2001-03-06 2002-09-11 Voith Paper Patent GmbH Enduiseuse à rideau
WO2003049870A1 (fr) * 2001-12-13 2003-06-19 Dow Global Technologies Inc. Procede et dispositif d'enduction au rideau
WO2003049871A1 (fr) 2001-12-13 2003-06-19 Dow Global Technologies Inc. Procede et appareil de couchage par voile
EP1398084A1 (fr) 2002-09-10 2004-03-17 ILFORD Imaging Switzerland GmbH Procédé et dispositif d'enduction au rideau d'un substrat en mouvement
US6887312B1 (en) 2001-03-06 2005-05-03 Voith Paper Patent Gmbh Applicator
DE102006060954A1 (de) * 2006-12-20 2008-06-26 Inatec Gmbh Laminierverfahren und -vorrichtung zum Auftragen eines Films einer Klebstoffzusammensetzung auf ein bahnförmiges Substrat
DE102010042291A1 (de) * 2010-10-11 2012-04-12 Fmp Technology Gmbh Fluid Measurements & Projects Vorrichtung zum Vorhangbeschichten eines Trägers
DE102014013996A1 (de) 2014-09-25 2016-03-31 Andritz Küsters Gmbh Verfahren und Vorrichtung zur Vorhangbeschichtung

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10117668A1 (de) * 2001-04-09 2002-10-10 Bachofen & Meier Ag Buelach Vorrichtung zum Beschichten einer laufenden Materialbahn
FI117176B (fi) * 2005-01-27 2006-07-14 Metso Paper Inc Laite tasolta syöttävän verhopäällystimen applikointileveyden säätämiseksi
FI121189B (fi) * 2007-10-17 2010-08-13 Metso Paper Inc Reunaohjain ja menetelmä verhopäällystyksessä muodostettavan reunaohjaimen toiminta-ajan pidentämiseksi
JP2009101321A (ja) * 2007-10-25 2009-05-14 Voith Patent Gmbh 塗工幅調整装置
JP5228227B2 (ja) * 2007-12-05 2013-07-03 ボイス パテント ゲーエムベーハー カーテンコータのエッジガイド
JP2009136751A (ja) * 2007-12-05 2009-06-25 Voith Patent Gmbh カーテンコータ
FI120885B (fi) * 2008-11-20 2010-04-15 Metso Paper Inc Reunaohjain
JP5605098B2 (ja) * 2009-09-08 2014-10-15 株式会社リコー カーテン塗布装置及びカーテン塗布方法
DE102012004875B3 (de) * 2012-03-10 2012-07-19 Andritz Küsters Gmbh Vorrichtung zur Vorhangbeschichtung einer laufenden Warenbahn
CN104549797B (zh) * 2013-10-28 2017-01-18 沈阳芯源微电子设备有限公司 一种带清洗部件的液体喷洒装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037612A1 (de) * 1980-10-04 1982-05-13 Agfa-Gevaert Ag, 5090 Leverkusen Randleisten an gleitflaechen von kaskaden- und vorhanggiessern
DE3241831A1 (de) * 1982-11-12 1984-05-17 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und vorrichtung zur erzeugung der breite oder der streifenbreite von beschichtungen auf bahnen
EP0139211A2 (fr) * 1983-09-12 1985-05-02 Fuji Photo Film Co., Ltd. Buse de succion
JPS63287575A (ja) * 1987-05-19 1988-11-24 Fuji Photo Film Co Ltd 塗布装置
US4830887A (en) * 1988-04-22 1989-05-16 Eastman Kodak Company Curtain coating method and apparatus
EP0537086A1 (fr) * 1991-10-11 1993-04-14 Eastman Kodak Company Méthode de couchage au rideau et appareil d'enduction
EP0599740A1 (fr) * 1992-11-19 1994-06-01 Eastman Kodak Company Guides latéraux constitué de deux fils pour l'enduction au rideau
JPH06157265A (ja) * 1992-07-16 1994-06-03 Bayer Ag 光の作用による皮膚の老化に対する皮膚手入れ用化粧製品
EP0606038A1 (fr) * 1993-01-07 1994-07-13 Eastman Kodak Company Dispositif d'enduction au rideau avec évacuation du bord

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157265A (ja) * 1984-08-30 1986-03-24 Konishiroku Photo Ind Co Ltd 塗布液肥厚部の除去装置及び方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037612A1 (de) * 1980-10-04 1982-05-13 Agfa-Gevaert Ag, 5090 Leverkusen Randleisten an gleitflaechen von kaskaden- und vorhanggiessern
DE3241831A1 (de) * 1982-11-12 1984-05-17 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und vorrichtung zur erzeugung der breite oder der streifenbreite von beschichtungen auf bahnen
EP0139211A2 (fr) * 1983-09-12 1985-05-02 Fuji Photo Film Co., Ltd. Buse de succion
JPS63287575A (ja) * 1987-05-19 1988-11-24 Fuji Photo Film Co Ltd 塗布装置
US4830887A (en) * 1988-04-22 1989-05-16 Eastman Kodak Company Curtain coating method and apparatus
EP0537086A1 (fr) * 1991-10-11 1993-04-14 Eastman Kodak Company Méthode de couchage au rideau et appareil d'enduction
JPH06157265A (ja) * 1992-07-16 1994-06-03 Bayer Ag 光の作用による皮膚の老化に対する皮膚手入れ用化粧製品
EP0599740A1 (fr) * 1992-11-19 1994-06-01 Eastman Kodak Company Guides latéraux constitué de deux fils pour l'enduction au rideau
EP0606038A1 (fr) * 1993-01-07 1994-07-13 Eastman Kodak Company Dispositif d'enduction au rideau avec évacuation du bord

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 219 (C - 363) 31 July 1986 (1986-07-31) *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 111 (C - 577) 16 March 1989 (1989-03-16) *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0858842A3 (fr) * 1997-02-05 1999-07-14 Eastman Kodak Company Evacuation du bord avec des moyens de blocage du flux d'air pour l'enduction au rideau
EP0858843A3 (fr) * 1997-02-05 1999-07-14 Eastman Kodak Company Evacuation du bord pour l'enduction au rideau
EP0907103A1 (fr) * 1997-10-03 1999-04-07 Troller Schweizer Engineering AG Procédé et dispositif pour le revêtement par rideau d'un support en mouvement
US6048582A (en) * 1997-10-03 2000-04-11 Troller Schweizer Engineering Ag Method and apparatus for curtain coating providing a lateral liquid film velocity equal to the curtain falling velocity
EP1239078A1 (fr) * 2001-03-06 2002-09-11 Voith Paper Patent GmbH Enduiseuse à rideau
US6887312B1 (en) 2001-03-06 2005-05-03 Voith Paper Patent Gmbh Applicator
WO2003049871A1 (fr) 2001-12-13 2003-06-19 Dow Global Technologies Inc. Procede et appareil de couchage par voile
WO2003049870A1 (fr) * 2001-12-13 2003-06-19 Dow Global Technologies Inc. Procede et dispositif d'enduction au rideau
EP1398084A1 (fr) 2002-09-10 2004-03-17 ILFORD Imaging Switzerland GmbH Procédé et dispositif d'enduction au rideau d'un substrat en mouvement
US7160579B2 (en) 2002-09-10 2007-01-09 Ilford Imaging Switzerland Gmbh Method and device for coating a moving web
DE102006060954A1 (de) * 2006-12-20 2008-06-26 Inatec Gmbh Laminierverfahren und -vorrichtung zum Auftragen eines Films einer Klebstoffzusammensetzung auf ein bahnförmiges Substrat
DE102010042291A1 (de) * 2010-10-11 2012-04-12 Fmp Technology Gmbh Fluid Measurements & Projects Vorrichtung zum Vorhangbeschichten eines Trägers
DE102014013996A1 (de) 2014-09-25 2016-03-31 Andritz Küsters Gmbh Verfahren und Vorrichtung zur Vorhangbeschichtung
EP3006115A1 (fr) 2014-09-25 2016-04-13 Andritz Küsters GmbH Procede et dispositif destines au revetement de rideau

Also Published As

Publication number Publication date
EP0841589A2 (fr) 1998-05-13
EP0841588B1 (fr) 2002-07-10
EP0841588A3 (fr) 1998-07-08
EP0841588A2 (fr) 1998-05-13
DE59506354D1 (de) 1999-08-12
EP0841589A3 (fr) 1998-07-08
EP0841589B1 (fr) 2001-08-08
EP0740197B1 (fr) 1999-07-07

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