EP0841588B1 - 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
EP0841588B1
EP0841588B1 EP98100164A EP98100164A EP0841588B1 EP 0841588 B1 EP0841588 B1 EP 0841588B1 EP 98100164 A EP98100164 A EP 98100164A EP 98100164 A EP98100164 A EP 98100164A EP 0841588 B1 EP0841588 B1 EP 0841588B1
Authority
EP
European Patent Office
Prior art keywords
curtain
cutter
extracting
coating
lateral
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.)
Revoked
Application number
EP98100164A
Other languages
German (de)
English (en)
Other versions
EP0841588A2 (fr
EP0841588A3 (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
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=EP0841588(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ilford Imaging Switzerland GmbH filed Critical Ilford Imaging Switzerland GmbH
Priority to DE59510277T priority Critical patent/DE59510277D1/de
Priority to EP98100164A priority patent/EP0841588B1/fr
Publication of EP0841588A2 publication Critical patent/EP0841588A2/fr
Publication of EP0841588A3 publication Critical patent/EP0841588A3/fr
Application granted granted Critical
Publication of EP0841588B1 publication Critical patent/EP0841588B1/fr
Anticipated expiration legal-status Critical
Revoked 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 Carrier with a liquid coating material according to Preamble of claims 1 and 3.
  • This Coating especially when the machine is wide and high speed, there are a large number of problems to stabilize the curtain and if possible to bring evenly on the surface.
  • EP-A-606 038 is also a device for Removal of the curtain edges with working as a knife
  • the plates approximately perpendicular to Curtain are arranged and the curtain edge over one arranged parallel to the length of the curtain Slot is sucked off.
  • the height of these knives is very high small and there is a risk that part of the Coating solution gets under the whole device, what leads to contamination.
  • 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 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 14 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 Angle ⁇ of 0 - 30 °, for example 10 ° forms and parallel to the front wall of the side guide, i.e. perpendicular to the longitudinal extension the curtain is arranged.
  • a suction slot 18 At the top 17 of the knife is in the front wall Side guide arranged a suction slot 18, the height 0.05 - 0.5 mm, see Fig. 2.
  • This slot 18 is via a suction duct 19 with a fan or other vacuum system connected to the cut Aspirate the edge of the curtain and the liquid film 10. there with the knife 15 a few mm of the curtain cut off.
  • the suction of the liquid film and the Curtain edge brings about a substantial stabilization of the Curtain.
  • 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 Knife height of 1 - 3 mm dispenses with 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 (6)

  1. Procédé de revêtement par rideau d'un support en mouvement avec une matière de revêtement liquide, plus particulièrement des émulsions photographiques, un flux latéral (10) étant alimenté de part et d'autre du rideau (6) guidé par des guidages latéraux (7), et la largeur du rideau étant plus grande que la largeur du revêtement sur le support, et les deux bords du rideau étant coupés par des lames (15) dont l'arête avant (16) enferme un angle aigu (α) par rapport à la face intérieure du guidage latéral, caractérisé en ce que les parties de la solution de coulée qui sont refoulées par l'arête avant de la lame, sont extraites perpendiculairement à l'étendue longitudinale du rideau par des ouvertures (20) dans la lame afin d'éviter la formation d'un bourrelet.
  2. Procédé selon la revendication 1, caractérisé en ce que les parties latérales coupées du rideau (6) et du flux latéral (10) sont aspirées par une fente d'extraction (18) sur la lame (15) et par un canal d'extraction (19).
  3. Appareil pour la mise en oeuvre du procédé selon la revendication 1, comprenant deux guidages latéraux (7) pour le rideau (6) et une lame (15) fixée à l'extrémité inférieure de chaque guidage latéral (7) et dont l'arête avant (16) enferme un angle aigu (α) par rapport à la face intérieure du guidage latéral, caractérisé en ce qu'une fente d'extraction (20) perpendiculaire à l'étendue longitudinale du rideau et reliée à un canal d'extraction (21) est disposée à l'arête inférieure de la lame (15).
  4. Dispositif selon la revendication 3, caractérisé en ce qu'une fente d'extraction (18) est disposé à la jonction entre le haut (17) de chaque lame (15) et le guidage latéral (7), 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).
  5. Dispositif selon la revendication 4, caractérisé en ce que la hauteur de la fente d'extraction (18) sur le haut de chaque lame est comprise entre 0,05 et 0,5 mm.
  6. Dispositif selon l'une des revendications 3 à 5, caractérisé en ce que la fente d'extraction (18) sur le haut (17) de chaque lame (15) et/ou la fente d'extraction (20) à l'arête inférieure (21) de la lame comporte un système de rinçage à l'eau.
EP98100164A 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement Revoked EP0841588B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59510277T DE59510277D1 (de) 1995-04-26 1995-04-26 Verfahren unr 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

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
EP98100164A EP0841588B1 (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
EP0841588A2 EP0841588A2 (fr) 1998-05-13
EP0841588A3 EP0841588A3 (fr) 1998-07-08
EP0841588B1 true EP0841588B1 (fr) 2002-07-10

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 After (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
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006079678A1 (fr) * 2005-01-27 2006-08-03 Metso Paper, Inc. Appareil pour reguler la largeur d'application d'une coucheuse a nappe a alimentation par coulisse
DE102012004875B3 (de) * 2012-03-10 2012-07-19 Andritz Küsters Gmbh Vorrichtung zur Vorhangbeschichtung einer laufenden Warenbahn

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5725910A (en) * 1997-02-05 1998-03-10 Eastman Kodak Company Edge removal apparatus for curtain coating
US5763013A (en) * 1997-02-05 1998-06-09 Eastman Kodak Company Edge removal apparatus including air-flow blocking means for curtain coating
EP0907103B1 (fr) * 1997-10-03 2000-08-09 Troller Schweizer Engineering AG Procédé et dispositif pour le revêtement par rideau d'un support en mouvement
DE10110633A1 (de) * 2001-03-06 2002-09-19 Voith Paper Patent Gmbh Auftragsvorrichtung
US6887312B1 (en) 2001-03-06 2005-05-03 Voith Paper Patent Gmbh Applicator
DE10117668A1 (de) * 2001-04-09 2002-10-10 Bachofen & Meier Ag Buelach Vorrichtung zum Beschichten einer laufenden Materialbahn
CA2469470C (fr) * 2001-12-13 2009-05-12 Dow Global Technologies Inc. Procede et dispositif d'enduction au rideau
EP1458492B1 (fr) 2001-12-13 2010-05-05 Dow Global Technologies Inc. Procede et appareil de couchage par voile
ATE354443T1 (de) * 2002-09-10 2007-03-15 Ilford Imaging Ch Gmbh Verfahren und vorrichtung zur vorhangbeschichtung eines bewegten trägers
DE102006060954A1 (de) * 2006-12-20 2008-06-26 Inatec Gmbh Laminierverfahren und -vorrichtung zum Auftragen eines Films einer Klebstoffzusammensetzung auf ein bahnförmiges Substrat
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
DE102010042291A1 (de) * 2010-10-11 2012-04-12 Fmp Technology Gmbh Fluid Measurements & Projects Vorrichtung zum Vorhangbeschichten eines Trägers
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
BR9203828A (pt) * 1991-10-11 1993-06-15 Eastman Kodak Co Aparelhagem e processo para recobrir por cortina um suporte movente,com uma ou mais camadas de liquido de recobrimento
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
WO2006079678A1 (fr) * 2005-01-27 2006-08-03 Metso Paper, Inc. Appareil pour reguler la largeur d'application d'une coucheuse a nappe a alimentation par coulisse
DE102012004875B3 (de) * 2012-03-10 2012-07-19 Andritz Küsters Gmbh Vorrichtung zur Vorhangbeschichtung einer laufenden Warenbahn

Also Published As

Publication number Publication date
EP0841589A2 (fr) 1998-05-13
EP0841588A2 (fr) 1998-05-13
EP0740197B1 (fr) 1999-07-07
EP0841589A3 (fr) 1998-07-08
DE59506354D1 (de) 1999-08-12
EP0740197A1 (fr) 1996-10-30
EP0841588A3 (fr) 1998-07-08
EP0841589B1 (fr) 2001-08-08

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