EP0740197B1 - 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
EP0740197B1
EP0740197B1 EP19950810277 EP95810277A EP0740197B1 EP 0740197 B1 EP0740197 B1 EP 0740197B1 EP 19950810277 EP19950810277 EP 19950810277 EP 95810277 A EP95810277 A EP 95810277A EP 0740197 B1 EP0740197 B1 EP 0740197B1
Authority
EP
European Patent Office
Prior art keywords
curtain
lateral
cutter
pouring
extracting
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
EP19950810277
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German (de)
English (en)
Other versions
EP0740197A1 (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
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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(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 EP19950810277 priority Critical patent/EP0740197B1/fr
Priority to DE59506354T priority patent/DE59506354D1/de
Priority to EP98100165A priority patent/EP0841589B1/fr
Priority to EP98100164A priority patent/EP0841588B1/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 coating a moving curtain Carrier with a liquid coating material according to Preamble of claim 1.
  • a liquid coating material according to Preamble of claim 1.
  • EP-B-414 721 describes a method for curtain coating known in which the rinsing liquid from the Edges of the falling curtain is suctioned off, whereby the edge guides near where the falling curtain hits the support with a Vacuum source are connected.
  • the exist Edge guides made of hollow tubes, each one the Have curtain facing slot, the Flushing liquid is introduced into the interior of the pipes and from there through the slots into the Marginal areas of the curtain. This procedure yields no sharp edge because the line of contact between Curtain and side flow is not stable and therefore the Coating quality is impaired.
  • 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 curtain would be under the effect contract the surface tension towards the center.
  • 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 side-limiting liquid film no longer parallel to the Pouring solution, or introduced to the curtain, but transversely thereto, that is, see in particular Figure 3, the Liquid film 10 becomes parallel to the flow restricting Front wall 7 'of the side guide 7 initiated, the Liquid film 10 in a groove 14 in the side guide flows and part of the front wall of the side guide forms.
  • the liquid for example water or a water / gelatin solution, introduced through a metering slot 11, which Slot end 12 is shaped such that the liquid film 10 the groove in regularly and with a uniform thickness flows down the side guide.
  • 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 18 is arranged, the height of 0.05-0.5 mm is, see Fig. 2.
  • This slot 18 is over a Suction channel 19 with a fan or other Vacuum system connected to the cut off Aspirate the edge of the curtain and the liquid film 10.
  • the suction of the liquid film and the curtain edge brings about a substantial stabilization of the Curtain.
  • a suction slot 20 is arranged at the bottom edge of the knife, the via a channel 21 with a vacuum system is connected, which is the same as for the suction slot 18th can be.
  • This channel preferably also contains one Water flushing. As shown in Figure 2, this creates an edge of the coating 22 that is used without loss can be.
  • 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 both edges of the cutting edge with the coating 22 Vertical an angle ⁇ and ⁇ of 10 - 80 °, preferably 60 °.
  • the distance is H between the cutting edge 24 and the surface of the Casting plates 0.3 - 2.5 mm, preferably 0.8 mm.
  • 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 regarding 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 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 (15)

  1. Procédé pour le revêtement par rideau d'un support en mouvement avec une matière de revêtement, plus particulièrement une émulsion photographique, dans lequel un flux latéral (10) est ajouté au rideau guidé (6) sur les deux côtés de celui-ci et la largeur du rideau est plus grande que 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).
  2. Procédé selon la revendication 1, caractérisé en ce que les deux côtés du rideau sont coupés par des lames, et 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).
  3. Procédé selon la revendication 2, caractérisé en ce que l'arête avant (17) des lames est inclinée vers l'intérieur, et que les parties de la solution de revêtement qui sont refoulées par l'arête avant de la lame sont aspirées par des ouvertures dans la lame afin d'éviter la formation d'un bourrelet en bordure.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la solution de revêtement est guidée au-dessus de la lèvre de coulée (4) par des plaques de délimitation latérale (2) de telle manière que ses deux bords ne montent pas sur les côtés des plaques de délimitation latérale (2) sous l'effet de la tension superficielle.
  5. Procédé selon les revendications 1 à 4.
  6. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, comprenant deux guidages latéraux (7) pour le rideau (6), 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 le flux latéral (10) parallèlement à la paroi frontale (7') du guidage latéral.
  7. Dispositif selon la revendication 6, caractérisé en ce que la paroi frontale (7') du guidage latéral (7) est pourvue d'une rainure (14) afin de recevoir le flux latéral (10).
  8. Dispositif selon la revendication 6 ou 7, comportant une lame (15) disposée à l'extrémité inférieure de chaque guidage latéral (7), l'arête avant (16) de ladite lame et le côté intérieur du guidage latéral formant un angle aigu (a), caractérisé en ce que le guidage latéral comporte une fente d'extraction (18) sur le haut (17) de chaque lame (12), 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).
  9. Dispositif selon la revendication 8, caractérisé en ce que la hauteur de la fente d'extraction (18) est comprise entre 0,05 et 0,5 mm.
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce que l'arête inférieure de la lame (15) comporte une fente d'extraction (20) qui est reliée à un canal d'extraction (21).
  11. Dispositif selon l'une des revendications 6 à 10, caractérisé en ce qu'il comporte des plaques de coulée (1) et une plaque de coulée frontale arquée qui mène vers la lèvre de coulée, ainsi que des plaques de délimitation latérale (2) disposées de chaque côté, l'arête de délimitation (25) des plaques de délimitation latérale (2) comportant un tranchant (24) dont les deux côtés forment un angle compris entre 10° et 80°, préférablement de 60°.
  12. Dispositif selon la revendication 11, 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).
  13. Dispositif selon la revendication 11 ou 12, 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 s'élève préférablement à 0,8 mm.
  14. Dispositif selon l'une des revendications 6 à 13, caractérisé en ce que la fente d'extraction (18) sur le haut 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.
  15. Dispositif selon les revendications 6, 8, 9, 11 et 14.
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
EP19950810277 EP0740197B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
DE59506354T DE59506354D1 (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
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 (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
EP98100165A Division EP0841589B1 (fr) 1995-04-26 1995-04-26 Procédé et appareil pour le revêtement par rideau d'un support en mouvement
EP98100164A Division EP0841588B1 (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 EP0740197A1 (fr) 1996-10-30
EP0740197B1 true EP0740197B1 (fr) 1999-07-07

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 (2)

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

Country Status (2)

Country Link
EP (3) EP0841588B1 (fr)
DE (1) DE59506354D1 (fr)

Families Citing this family (21)

* 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
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
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
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
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

Also Published As

Publication number Publication date
EP0841589A2 (fr) 1998-05-13
EP0841588A2 (fr) 1998-05-13
EP0841589A3 (fr) 1998-07-08
DE59506354D1 (de) 1999-08-12
EP0740197A1 (fr) 1996-10-30
EP0841588A3 (fr) 1998-07-08
EP0841588B1 (fr) 2002-07-10
EP0841589B1 (fr) 2001-08-08

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