EP0841589B1 - 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
EP0841589B1
EP0841589B1 EP98100165A EP98100165A EP0841589B1 EP 0841589 B1 EP0841589 B1 EP 0841589B1 EP 98100165 A EP98100165 A EP 98100165A EP 98100165 A EP98100165 A EP 98100165A EP 0841589 B1 EP0841589 B1 EP 0841589B1
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EP
European Patent Office
Prior art keywords
curtain
pouring
sides
lateral
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.)
Expired - Lifetime
Application number
EP98100165A
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German (de)
English (en)
Other versions
EP0841589A3 (fr
EP0841589A2 (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 Imaging Switzerland GmbH
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Filing date
Publication date
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Application filed by Ilford Imaging Switzerland GmbH filed Critical Ilford Imaging Switzerland GmbH
Priority to DE59509498T priority Critical patent/DE59509498D1/de
Priority to EP98100165A priority patent/EP0841589B1/fr
Publication of EP0841589A2 publication Critical patent/EP0841589A2/fr
Publication of EP0841589A3 publication Critical patent/EP0841589A3/fr
Application granted granted Critical
Publication of EP0841589B1 publication Critical patent/EP0841589B1/fr
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Expired - Lifetime legal-status Critical Current

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    • 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 Carrier with a liquid coating material according to Preamble of claim 1.
  • This coating especially when the machine is wide and large Speed, there are a large number of Problems to stabilize the curtain and if possible to bring evenly on the surface.
  • FIG. 1 schematically shows part of a coating device shown as part of a system.
  • the foundry plates 1 see also Figure 4, with the side attached side boundary plates 2, which the Casting solution 3 is limited for the respective casting width.
  • the free begins at the lip 4 of the foundry front plate 5 Fall of the curtain. From this point on, the curtain 6 be stabilized by the side guides 7. Without these The curtains would be under the effect of the side guides Pull the surface tension towards the middle.
  • the coating device also assigns one coating carrier 8 on the casting roll 9 and is guided under the coating device.
  • Figure 1 the direction of rotation of the casting roll is also shown.
  • the page-limiting Liquid film no longer parallel to the casting solution, or to the curtain, but across it, that is, see in particular Figure 3, the liquid film 10 parallel to the flow-limiting front wall 7 ' Lateral guide 7 initiated, the liquid film 10 flows in a groove 14 in the side guide and part forms the front wall of the side guide.
  • the liquid for example water or a water / gelatin solution through a metering slot 11 inserted, the slot end 12 being shaped such that the liquid film 10 regularly and with uniform thickness the groove in the side guide flows down.
  • a knife 15 attached, the outer geometry is known per se.
  • this knife also points to flow separations to avoid a leading edge 16 on that a sharp one with respect to the inside of the side guide Forms angle ⁇ of 0-30 °, for example 10 °.
  • a suction slot 20 To the by the compressed curtain edge on the edge of the Avoiding suction knife formed bead is at the bottom edge of the knife arranged a suction slot 20, the connected to a vacuum system via a channel 21 which can be the same as for the suction slot 18.
  • This channel preferably also contains a water rinse. As shown in Figure 2, this creates an edge of Coating 22 that can be used without loss.
  • the knife height at the cutting edge S of the knife can be 1 - 15 mm amount and it is appropriate to use the suction slot from one Knife height of 3 mm to be used, while at a 1 knife height of 1 - 3 mm without a suction slot can be.
  • the delimiting edge 25 of the Side boundary plates is not vertical, but one Has cutting edge 24, which cutting edge has an angle of for example includes 60 °, which means that the two Edge of the cutting edge with the 22 perpendicular to the coating an angle ⁇ and ⁇ of 10 - 80 °, preferably 60 °, exhibit.
  • the distance H between the cutting edge is 24 and the surface of the foundry plates 0.3 - 2.5 mm, preferably 0.8 mm. This will make the effect of Surface tension is reduced to a minimum, and there will be lateral displacements of the casting solution largely avoided.
  • inventive Device can be varied with respect to the specified mass can and the most diverse coating conditions and Casting solution combinations can be adjusted. While every single measure already extensive improvements with regard to the quality of the coating results in a Combination of all improvements, such as Vacuuming the cut edges, vacuuming the at Knife jammed pouring solution as well as avoiding the by the Differences in layer thickness due to surface tension and guiding a thin film of liquid along the Side boundary plates a particularly stable Coating, the edges of which do not lose material or Cause more 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)

Claims (12)

  1. Procédé de revêtement par rideau d'un support en mouvement avec une matière de revêtement liquide, plus particulièrement des émulsion photographiques, la solution de coulée étant guidée en amont de la lèvre de coulée (4) par des plaques de délimitation latérale (2) dont les côtés plans forment un angle par rapport à la surface de la solution de coulée, caractérisé en ce qu'une montée des deux bords de la solution de coulée sur les côtés des plaques de délimitation latérale (2) sous l'effet de la tension superficielle est évitée par le fait que les côtes de ces dernières sont munies d'un tranchant (24).
  2. Procédé selon la revendication 1, dans lequel un flux latéral (10) est alimenté au rideau guidé (6) des deux côtés de celui-ci, et la largeur du rideau est supérieure à la largeur du revêtement sur le support, caractérisé en ce que le flux latéral (10) est alimenté transversalement à l'étendue du rideau (6) et parallèlement à la paroi frontale (7') des guidages latéraux (7).
  3. Procédé selon la revendication 2, dans lequel les deux côtés du rideau sont coupés par des lames, caractérisé en ce que les parties latérales coupées du rideau (6) et du flux latéral (10) sont aspirées par une fente d'extraction (18) et un canal d'extraction (19).
  4. Procédé selon la revendication 3, caractérisé en ce que les parties de la solution de coulée qui sont refoulées par l'arête avant de la lame, sont extraites par des ouvertures dans la lame pour éviter la formation d'un bourrelet.
  5. Appareil pour la mise en oeuvre du procédé selon la revendication 1, comprenant des plaques de coulée (1) et une plaque de coulée frontale arquée qui mène vers la lèvre de coulée (4), ainsi que des plaques de délimitation latérale (2) dont les côtés plans forment un angle par rapport à la surface de la solution de coulée, caractérisé en ce que l'arête de délimitation (25) des plaques de délimitation latérale (2) comporte un tranchant (24) dont les deux côtés forment un angle compris entre 10° et 80°, préférablement de 60°, par rapport à la normale au revêtement.
  6. Dispositif selon la revendication 5, caractérisé en ce que les plaques de délimitation latérale (2) sont montées de manière étanche sur les plaques de coulée (1) et couvrent la plaque de coulée frontale (5) jusqu'à la lèvre de coulée (4).
  7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que la distance (H) entre le tranchant (24) et la surface des plaques de coulée (1) est comprise entre 0,3 et 2,5 mm et préférablement égale à 0,8 mm.
  8. Dispositif selon la revendication 5, permettant en outre d'alimenter un flux latéral (10) aux deux côtés du rideau guidé, la largeur du rideau étant supérieure à la largeur du revêtement sur le support, caractérisé en ce qu'une fente de dosage (11) est disposée au-dessus de chaque guidage latéral (7), l'extrémité (12) de la fente permettant d'alimenter ledit flux latéral (10) parallèlement à la paroi frontale (7') du guidage latéral.
  9. Dispositif selon la revendication 5, présentant en outre des lames permettant de découper les deux bords du rideau, caractérisé en ce que le guidage latéral (7) comporte une fente d'extraction (18) sur le haut (17) de chaque lame (15), ladite fente étant reliée à un canal d'extraction (19) afin d'aspirer les parties latérales coupées du rideau (6) et du flux latéral (10).
  10. Dispositif selon la revendication 9, caractérisé en ce que la hauteur de la fente d'extraction (18) est comprise entre 0,05 et 0,5 mm.
  11. Dispositif selon la revendication 9 ou 10, caractérisé en ce que pour éviter la formation d'un bourrelet en bordure, une fente d'extraction (20) est disposée à l'arête inférieure de la lame (15), ladite fente étant reliée à un canal d'extraction (21).
  12. Dispositif selon la revendication 11, caractérisé en ce que la fente d'extraction (18) sur le haut (17) de chaque lame (12) et/ou la fente d'extraction (20) à l'arête inférieure (21) de la lame comporte un système de rinçage à l'eau.
EP98100165A 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement Expired - Lifetime EP0841589B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59509498T DE59509498D1 (de) 1995-04-26 1995-04-26 Verfahren und Vorrichtung zur Vorhangbeschichtung eines bewegten Trägers
EP98100165A EP0841589B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement

Applications Claiming Priority (2)

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
EP98100165A EP0841589B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement

Related Parent Applications (1)

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

Publications (3)

Publication Number Publication Date
EP0841589A2 EP0841589A2 (fr) 1998-05-13
EP0841589A3 EP0841589A3 (fr) 1998-07-08
EP0841589B1 true EP0841589B1 (fr) 2001-08-08

Family

ID=8221736

Family Applications (3)

Application Number Title Priority Date Filing Date
EP98100164A Revoked EP0841588B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
EP98100165A Expired - Lifetime EP0841589B1 (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 (1)

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

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19950810277 Expired - Lifetime EP0740197B1 (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) EP0841588B1 (fr)
DE (1) DE59506354D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT506043A3 (de) * 2007-10-17 2014-02-15 Metso Paper Inc Kantenführung

Families Citing this family (20)

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Publication number Priority date Publication date Assignee Title
US5763013A (en) * 1997-02-05 1998-06-09 Eastman Kodak Company Edge removal apparatus including air-flow blocking means for curtain coating
US5725910A (en) * 1997-02-05 1998-03-10 Eastman Kodak Company Edge removal apparatus for curtain coating
DE59702151D1 (de) * 1997-10-03 2000-09-14 Troller Schweizer Engineering Verfahren und Apparatur zur Vorhangbeschichtung eines bewegten Trägers
US6887312B1 (en) 2001-03-06 2005-05-03 Voith Paper Patent Gmbh Applicator
DE10110633A1 (de) * 2001-03-06 2002-09-19 Voith Paper Patent Gmbh Auftragsvorrichtung
DE10117668A1 (de) * 2001-04-09 2002-10-10 Bachofen & Meier Ag Buelach Vorrichtung zum Beschichten einer laufenden Materialbahn
US6982003B2 (en) * 2001-12-13 2006-01-03 Dow Global Technologies Inc. Method and apparatus for curtain coating
DE60236316D1 (de) 2001-12-13 2010-06-17 Dow Global Technologies Inc Verfahren und vorrichtung zur vorhangbeschichtung
DE50209547D1 (de) 2002-09-10 2007-04-05 Ilford Imaging Ch Gmbh Verfahren und Vorrichtung zur Vorhangbeschichtung eines bewegten Trägers
FI117176B (fi) * 2005-01-27 2006-07-14 Metso Paper Inc Laite tasolta syöttävän verhopäällystimen applikointileveyden säätämiseksi
DE102006060954A1 (de) * 2006-12-20 2008-06-26 Inatec Gmbh Laminierverfahren und -vorrichtung zum Auftragen eines Films einer Klebstoffzusammensetzung auf ein bahnförmiges Substrat
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
DE102010042291A1 (de) * 2010-10-11 2012-04-12 Fmp Technology Gmbh Fluid Measurements & Projects Vorrichtung zum Vorhangbeschichten eines Trägers
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
DE102014013996A1 (de) 2014-09-25 2016-03-31 Andritz Küsters Gmbh Verfahren und Vorrichtung zur Vorhangbeschichtung

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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
JPS6049949U (ja) * 1983-09-12 1985-04-08 富士写真フイルム株式会社 吸引ノズル
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
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
EP0537086B1 (fr) * 1991-10-11 1997-08-20 Eastman Kodak Company Méthode de couchage au rideau et appareil d'enduction
DE4223463A1 (de) * 1992-07-16 1994-01-20 Bayer Ag Kosmetisches Pflegemittel gegen lichtbedingte Hautalterung
US5328726A (en) * 1992-11-19 1994-07-12 Eastman Kodak Company Curtain coating method and apparatus using dual wire edge guides
EP0606038B1 (fr) * 1993-01-07 1999-08-18 Eastman Kodak Company Dispositif d'enduction au rideau avec évacuation du bord

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT506043A3 (de) * 2007-10-17 2014-02-15 Metso Paper Inc Kantenführung
AT506043B1 (de) * 2007-10-17 2014-02-15 Metso Paper Inc Kantenführung

Also Published As

Publication number Publication date
EP0740197B1 (fr) 1999-07-07
EP0841588A3 (fr) 1998-07-08
EP0841589A3 (fr) 1998-07-08
DE59506354D1 (de) 1999-08-12
EP0841588A2 (fr) 1998-05-13
EP0841588B1 (fr) 2002-07-10
EP0740197A1 (fr) 1996-10-30
EP0841589A2 (fr) 1998-05-13

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