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EP0704752A1 - Méthode et dispositif d'enduire du rideau sur un support en mouvement - Google Patents

Méthode et dispositif d'enduire du rideau sur un support en mouvement Download PDF

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Publication number
EP0704752A1
EP0704752A1 EP94810560A EP94810560A EP0704752A1 EP 0704752 A1 EP0704752 A1 EP 0704752A1 EP 94810560 A EP94810560 A EP 94810560A EP 94810560 A EP94810560 A EP 94810560A EP 0704752 A1 EP0704752 A1 EP 0704752A1
Authority
EP
European Patent Office
Prior art keywords
curtain
air
pouring
support
carrier
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
EP94810560A
Other languages
German (de)
English (en)
Other versions
EP0704752B1 (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
Application filed by Ilford AG, Ilford Imaging Switzerland GmbH filed Critical Ilford AG
Priority to DE59409768T priority Critical patent/DE59409768D1/de
Priority to EP94810560A priority patent/EP0704752B1/fr
Priority to JP24955595A priority patent/JP3681443B2/ja
Priority to US08/534,842 priority patent/US5624715A/en
Publication of EP0704752A1 publication Critical patent/EP0704752A1/fr
Application granted granted Critical
Publication of EP0704752B1 publication Critical patent/EP0704752B1/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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/04—Curtain coater

Definitions

  • the present invention relates to a method and an apparatus for curtain coating a moving support with a liquid coating material.
  • the curtain coating especially with the large width of the machines and high speed, there are a large number of problems in order to stabilize the liquid curtain and to bring it onto the base as evenly as possible.
  • One of these problems is that the free falling liquid film is forward, i.e. is deformed in the direction of the moving carrier. This deviation from the vertical fall direction occurs due to the air boundary layer running along with the carrier.
  • EP-A-0 489 978 a coating device is known which has an air shield which, as seen in the direction of the moving carrier, is attached in front of the liquid film and has an opening from which the shield can move stowed air is extracted.
  • a shield By using a shield, the distance between the suction point and the curtain is quite large, which reduces the effectiveness of the arrangement.
  • EP-A-0 551 237 discloses a method and a device for curtain coating in which an attempt is made to stabilize the air in front of the curtain by measuring the air pressure prevailing in the space in front of the curtain in order to starting from a setpoint, either supplying or removing air. Precise control, however, requires a lot of equipment in order to maintain a uniform air pressure across the entire width of the machine.
  • Figure 1 shows the part of a coating system essential to the invention in section with a schematically illustrated pourer 1, which opens into a pouring lip 2, from which the liquid film 3, hereinafter called the curtain, falls freely in the direction of the casting roller 4, on which the carrier 5 is schematically recorded , which moves in the direction of the arrow, see also FIG. 2.
  • the curtain is delimited on both sides by side guides 6.
  • a doctor blade 7 is arranged in front of the curtain, at a distance b, see FIG.
  • the squeegee must therefore be a carrier with a sufficient height and thus high Area moment of inertia are formed.
  • the doctor blade on the casting roll side 13 is shaped approximately parallel to the surface of the casting roll or the carrier and merges into a lower part 14 which runs approximately at right angles to the casting roll surface.
  • the rear surface 15 of the doctor blade runs parallel to the front of the base 16 or to the individual foundry plates of the foundry 1.
  • the area in front of the curtain is delimited at the top by the underside 9 of the pouring lip 2, at the bottom by the support 5, opposite the curtain by the front 8 of the doctor blade, and on both sides by the side guides 6 and is therefore a practically closed space 10
  • Special measures would arise from the air boundary layer 11 along the falling curtain, see FIG. 2, rotating air vortices 12, which can be divided into individual unstable cells. As a result, the flow of the curtain is disturbed and restless, which leads to a reduced casting quality.
  • an opening 22 extending over the entire width of the machine is provided between the rear upper edge 20 of the doctor blade and the foremost foundry plate 21, which opening is connected to a second duct 23 and to a second fan 24.
  • the air supply opening 22 opens at the bottom 9 of the pouring lip 2, so that the air arriving there at a low speed is deflected downward and is finally sucked off by the squeegee or its slot 17.
  • a very uniform flow can be generated by various measures, the air supplied preferably being preheated.
  • the dynamic wetting line 26 can be set at the desired location. Since the squeegee, as explained above, stabilizes the dynamic wetting line, a combination of the measures described achieves a uniform coating.
  • the air extraction and supply devices can be combined and controlled into one unit.

Landscapes

  • 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)
EP94810560A 1994-09-27 1994-09-27 Procédé et appareil pour le revêtement par rideau d'un support en mouvement. Expired - Lifetime EP0704752B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59409768T DE59409768D1 (de) 1994-09-27 1994-09-27 Verfahren und Vorrichtung zur Vorhangbeschichtung eines bewegten Trägers
EP94810560A EP0704752B1 (fr) 1994-09-27 1994-09-27 Procédé et appareil pour le revêtement par rideau d'un support en mouvement.
JP24955595A JP3681443B2 (ja) 1994-09-27 1995-09-27 移動する支持体に幕状にコーテイングする方法および装置
US08/534,842 US5624715A (en) 1994-09-27 1995-09-27 Method and apparatus for curtain coating a moving support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94810560A EP0704752B1 (fr) 1994-09-27 1994-09-27 Procédé et appareil pour le revêtement par rideau d'un support en mouvement.

Publications (2)

Publication Number Publication Date
EP0704752A1 true EP0704752A1 (fr) 1996-04-03
EP0704752B1 EP0704752B1 (fr) 2001-05-30

Family

ID=8218314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810560A Expired - Lifetime EP0704752B1 (fr) 1994-09-27 1994-09-27 Procédé et appareil pour le revêtement par rideau d'un support en mouvement.

Country Status (4)

Country Link
US (1) US5624715A (fr)
EP (1) EP0704752B1 (fr)
JP (1) JP3681443B2 (fr)
DE (1) DE59409768D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0906789A1 (fr) * 1997-10-03 1999-04-07 Troller Schweizer Engineering AG Procédé et appareil pour le revêtement par rideau d'un support en movement
EP0938935A2 (fr) 1998-02-27 1999-09-01 Agfa-Gevaert AG Dispositif de revêtement par rideau
WO2001091917A1 (fr) 2000-06-02 2001-12-06 Mitsubishi Hitec Paper Flensburg Gmbh Procede et dispositif de couchage par voile
WO2006056386A1 (fr) 2004-11-22 2006-06-01 Basf Aktiengesellschaft Dispositif et procede de couchage par voile de substrats mobiles
WO2006134052A1 (fr) 2005-06-15 2006-12-21 Basf Aktiengesellschaft Systeme de revetement en rideau, muni d'un dispositif de derochage de la couche limite
WO2011073094A1 (fr) * 2009-12-16 2011-06-23 Voith Patent Gmbh Dispositif d'application de rideau

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5780109A (en) * 1997-01-21 1998-07-14 Minnesota Mining And Manufacturing Company Die edge cleaning system
US5976630A (en) * 1997-09-29 1999-11-02 Eastman Kodak Company Method and apparatus for curtain coating
DE19803240A1 (de) 1998-01-28 1999-07-29 Voith Sulzer Papiertech Patent Farbvorhang-Auftragsvorrichtung
DE19829449A1 (de) * 1998-07-01 2000-01-05 Voith Sulzer Papiertech Patent Auftragsvorrichtung und Auftragsverfahren
JP4113985B2 (ja) * 1998-07-22 2008-07-09 富士フイルム株式会社 塗布方法及び装置
FI115295B (fi) 1999-09-01 2005-04-15 Metso Paper Inc Verhopäällystin ja verhopäällystysmenetelmä
US6669993B2 (en) * 2000-09-19 2003-12-30 Honeywell International Inc. High speed yarn finish application
US6666946B2 (en) * 2001-03-14 2003-12-23 3M Innovative Properties Company Method of high speed coating pigment-containing liquid coating materials
DE60225332T2 (de) * 2001-12-13 2009-02-19 Dow Global Technologies, Inc., Midland Verfahren und vorrichtung zum vorhanggiessen
EP1428582B1 (fr) 2002-12-12 2006-03-01 Metso Paper, Inc. Méthode et appareil pour revêtement au rideau
FI115407B (fi) * 2003-06-26 2005-04-29 Metso Paper Inc Paperi-/kartonkikoneen verhopäällystinyksikkö
DE10358754B4 (de) * 2003-12-12 2011-07-14 M-Real Oyj Bahnfördervorrichtung
US20070045896A1 (en) * 2005-08-31 2007-03-01 Fuji Photo Film Co., Ltd. Method and apparatus for producing film
KR101273231B1 (ko) * 2006-05-02 2013-06-11 다우 코닝 아일랜드 리미티드 유체 치환 시스템
EP2013395B1 (fr) * 2006-05-02 2014-04-02 Dow Corning Ireland Limited Dispositif d'étanchéification d'une bande
ATE430217T1 (de) * 2006-09-01 2009-05-15 Mitsubishi Hitec Paper Bielfel Vorhangbeschichtungsverfahren sowie eine dafür verwendete vorrichtung
JP5510785B2 (ja) * 2009-09-25 2014-06-04 大日本印刷株式会社 塗布装置および塗布方法
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
DE102016209336B4 (de) 2016-05-30 2021-08-05 Voith Patent Gmbh Vorhangauftragswerk
DE102017124280A1 (de) 2017-10-18 2019-04-18 Voith Patent Gmbh Vorhang-Auftragswerk und Verfahren zum Auftragen eines Auftragsmediums

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1928025A1 (de) * 1968-06-03 1969-12-18 Eastman Kodak Co Verfahren und Vorrichtung zum Herstellen eines photographischen Materials
DE2723444A1 (de) * 1976-05-26 1977-12-15 Ciba Geigy Ag Verfahren und vorrichtung zum beschichten laufenden materials
US4128667A (en) * 1974-01-10 1978-12-05 Polaroid Corporation Manipulation of coating streams with air foils
US4842900A (en) * 1986-02-12 1989-06-27 Fuji Photo Film Co., Ltd. Method and apparatus for coating
WO1992002851A2 (fr) * 1990-07-30 1992-02-20 Eastman Kodak Company Procede et appareil pour le couchage par voile
EP0489978A1 (fr) * 1990-12-12 1992-06-17 Agfa-Gevaert N.V. Enduiseuse à rideau
EP0551237A1 (fr) * 1992-01-10 1993-07-14 Eastman Kodak Company Appareil d'enduction du rideau et méthode de couchage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867901A (en) * 1968-06-03 1975-02-25 Eastman Kodak Co Apparatus for production of photographic elements
US3508947A (en) * 1968-06-03 1970-04-28 Eastman Kodak Co Method for simultaneously applying a plurality of coated layers by forming a stable multilayer free-falling vertical curtain

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1928025A1 (de) * 1968-06-03 1969-12-18 Eastman Kodak Co Verfahren und Vorrichtung zum Herstellen eines photographischen Materials
US4128667A (en) * 1974-01-10 1978-12-05 Polaroid Corporation Manipulation of coating streams with air foils
DE2723444A1 (de) * 1976-05-26 1977-12-15 Ciba Geigy Ag Verfahren und vorrichtung zum beschichten laufenden materials
US4842900A (en) * 1986-02-12 1989-06-27 Fuji Photo Film Co., Ltd. Method and apparatus for coating
WO1992002851A2 (fr) * 1990-07-30 1992-02-20 Eastman Kodak Company Procede et appareil pour le couchage par voile
EP0489978A1 (fr) * 1990-12-12 1992-06-17 Agfa-Gevaert N.V. Enduiseuse à rideau
EP0551237A1 (fr) * 1992-01-10 1993-07-14 Eastman Kodak Company Appareil d'enduction du rideau et méthode de couchage

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0906789A1 (fr) * 1997-10-03 1999-04-07 Troller Schweizer Engineering AG Procédé et appareil pour le revêtement par rideau d'un support en movement
US6162502A (en) * 1997-10-03 2000-12-19 Troller Schweizer Engineering Ag Method and device for curtain coating a moving support
EP0938935A2 (fr) 1998-02-27 1999-09-01 Agfa-Gevaert AG Dispositif de revêtement par rideau
EP0938935A3 (fr) * 1998-02-27 2000-05-03 Agfa-Gevaert AG Dispositif de revêtement par rideau
WO2001091917A1 (fr) 2000-06-02 2001-12-06 Mitsubishi Hitec Paper Flensburg Gmbh Procede et dispositif de couchage par voile
WO2006056386A1 (fr) 2004-11-22 2006-06-01 Basf Aktiengesellschaft Dispositif et procede de couchage par voile de substrats mobiles
WO2006134052A1 (fr) 2005-06-15 2006-12-21 Basf Aktiengesellschaft Systeme de revetement en rideau, muni d'un dispositif de derochage de la couche limite
DE112006001484B4 (de) * 2005-06-15 2015-06-18 Basf Se Vorhangbeschichter mit Grenzschichtablösevorrichtung
WO2011073094A1 (fr) * 2009-12-16 2011-06-23 Voith Patent Gmbh Dispositif d'application de rideau

Also Published As

Publication number Publication date
JP3681443B2 (ja) 2005-08-10
US5624715A (en) 1997-04-29
JPH08173879A (ja) 1996-07-09
DE59409768D1 (de) 2001-07-05
EP0704752B1 (fr) 2001-05-30

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