EP0841589B1 - Process and apparatus for curtain-coating of a moving substrate - Google Patents

Process and apparatus for curtain-coating of a moving substrate 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)
French (fr)
Other versions
EP0841589A2 (en
EP0841589A3 (en
Inventor
Markus Gueggi
Maurice Pasquier
Peter Schweizer
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Ilford Imaging Switzerland GmbH
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Ilford Imaging Switzerland GmbH
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Application filed by Ilford Imaging Switzerland GmbH filed Critical Ilford Imaging Switzerland GmbH
Priority to DE59509498T priority Critical patent/DE59509498D1/en
Priority to EP98100165A priority patent/EP0841589B1/en
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Publication of EP0841589A3 publication Critical patent/EP0841589A3/en
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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)

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zur Vorhangbeschichtung eines bewegten Trägers mit einem flüssigen Beschichtungsmaterial gemäss Oberbegriff von Patentanspruch 1. Bei dieser Beschichtung, insbesondere bei grosser Breite der Maschinen und grosser Geschwindigkeit, ergeben sich eine grosse Anzahl von Problemen, um den Vorhang zu stabilisieren und möglichst gleichmässig auf die Unterlage zu bringen.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. With 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.

Eines dieser Probleme besteht darin, dass durch die vor der Giesserlippe angeordneten Seitenbegrenzungsplatten Störungen entstehen, so beispielsweise Schichtdickenfehler im Randbereich, dadurch, dass die Giesslösung unter der Wirkung der Oberflächenspannung an den Seiten der Seitenbegrenzungsplatten in die Höhe steigt, falls die Seitenbegrenzungsplatten eine rechtwinklige Stirnseite aufweisen.One of these problems is that before Giesserlippe arranged side boundary plates malfunctions arise, for example layer thickness errors in the edge area, in that the casting solution under the effect of Surface tension on the sides of the side boundary plates rises in height if the side boundary plates have a right-angled face.

In dem Patent Abstracts of Japan, Vol. 13 No. 111 (C-577), 16. März 1989, ist eine Giesserlippe mit Seitenbegrenzungsplatten offenbart, deren ebenen Seiten bezüglich der Giesslösungsoberfläche einen nicht näher bestimmten Winkel  bilden.In the Patent Abstracts of Japan, Vol. 13 No. 111 (C-577), March 16, 1989, is a pouring lip with side boundary plates disclosed, the flat sides of which Casting solution surface an unspecified angle  form.

Es ist demgegenüber eine Aufgabe der vorliegenden Erfindung, ein Verfahren und eine Vorrichtung anzugeben, mit dem eine gleichmässige Beschichtung mit verringerten Schichtdickenfehler erzielt werden kann. Diese Aufgabe wird mit dem Verfahren gemäss den unabhängigen Patentansprüchen 1 und 5 gelöst. Weitere Vorteile sind in den abhängigen Ansprüchen definiert. In contrast, it is an object of the present invention to provide a method and an apparatus with which a uniform coating with reduced Layer thickness errors can be achieved. This task will with the method according to independent patent claims 1 and 5 solved. Other advantages are in the dependent Defined claims.

Die Erfindung wird im folgenden anhand einer Zeichnung eines Ausführungsbeispiels näher erläutert.

Figur 1
zeigt in perspektivischer Sicht und schematisch einen Teil einer Vorhangsbeschichtungsanlage,
Figur 2
zeigt in einem Längsschnitt Teile der Vorrichtung,
Figur 3
ist ein Schnitt gemäss der Linie III-III in Figur 2,
Figur 4
zeigt in perspektivischer Sicht ein Detail der erfindungsgemässen Vorrichtung, und
Figur 5
zeigt einen Schnitt gemäss der Linie V-V.
The invention is explained below with reference to a drawing of an embodiment.
Figure 1
shows a perspective view and schematically a part of a curtain coating system,
Figure 2
shows in a longitudinal section parts of the device,
Figure 3
is a section along the line III-III in Figure 2,
Figure 4
shows a perspective view of a detail of the device according to the invention, and
Figure 5
shows a section along the line VV.

In Figur 1 ist schematisch ein Teil einer Beschichtungs-Vorrichtung als Teil einer Anlage dargestellt. Man erkennt die Giesserplatten 1, siehe auch Figur 4, mit den seitlich angebrachten Seitenbegrenzungsplatten 2, womit die Giesslösung 3 für die jeweilige Giessbreite begrenzt wird. An der Lippe 4 der Giesserfrontplatte 5 beginnt der freie Fall des Vorhanges. Von diesem Punkt an muss der Vorhang 6 durch die Seitenführungen 7 stabilisiert werden. Ohne diese Seitenführungen würde sich der Vorhang unter der Wirkung der Oberflächenspannung gegen die Mitte zusammenziehen.FIG. 1 schematically shows part of a coating device shown as part of a system. One recognises 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.

Die Beschichtungsvorrichtung weist ferner einen zu beschichtenden Träger 8 auf, der um die Giesswalze 9 und unter der Beschichtungsvorrichtung geführt wird. In Figur 1 ist auch der Drehsinn der Giesswalze eingezeichnet.The coating device also assigns one coating carrier 8 on the casting roll 9 and is guided under the coating device. In Figure 1 the direction of rotation of the casting roll is also shown.

Bei vorliegender Vorrichtung wird der seitenbegrenzende Flüssigkeitsfilm nicht mehr parallel zur Giesslösung, bzw. zum Giessvorhang eingeleitet, sondern quer dazu, das heisst, siehe insbesondere Figur 3, der Flüssigkeitsfilm 10 wird parallel zur strömungsbegrenzenden Vorderwand 7' der Seitenführung 7 eingeleitet, wobei der Flüssigkeitsfilm 10 in einer Nut 14 in der Seitenführung fliesst und einen Teil der Vorderwand der Seitenführung bildet. Wie aus Figur 2 hervorgeht, wird die Flüssigkeit, beispielsweise Wasser oder eine Wasser/Gelatinelösung, durch einen Dosierschlitz 11 eingeführt, wobei das Schlitzende 12 derart geformt ist, dass der Flüssigkeits-Film 10 regelmässig und mit gleichförmiger Dicke die Nut in der Seitenführung hinabströmt.In the present device, 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. As from Figure 2 emerges, 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.

Dadurch wird erreicht, dass der Flüssigkeitsfilm und damit auch die Berührungslinie 13 zwischen Giessvorhang 6 und Flüssigkeitsfilm 10 ortsstabil ist, womit unkontrollierte wellenförmige Bewegungen im Vorhang vermieden werden. Zum Flüssigkeitsfilm können Zusätze wie Netzmittel und/oder Substanzen zur Erhöhung der elektrischen Leitfähigkeit beigegeben werden.This ensures that the liquid film and thus also the line of contact 13 between curtain 6 and Liquid film 10 is stable, which means uncontrolled wavy movements in the curtain can be avoided. To the Liquid film can be additives such as wetting agents and / or Substances to increase electrical conductivity be added.

Am unteren Ende der Seitenführungen ist je ein Messer 15 angebracht, dessen äussere Geometrie an sich bekannt ist. Insbesondere weist auch dieses Messer, um Strömungs-Ablösungen zu vermeiden, eine Vorderkante 16 auf, die bezüglich der Innenseite der Seitenführung einen spitzen Winkel α von 0 - 30°, beispielsweise 10° bildet.At the bottom of the side guides is a knife 15 attached, the outer geometry is known per se. In particular, 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 α of 0-30 °, for example 10 °.

An der Oberseite 17 des Messers ist in der Seitenführung ein Absaugschlitz 18 angeordnet, dessen Höhe 0,05 - 0,5 mm beträgt, siehe Fig. 2. Dieser Schlitz 18 ist über einen Absaugkanal 19 mit einem Ventilator oder sonstigen Unterdruckanlage verbunden, um den abgeschnittenen Vorhangrand sowie den Flüssigkeitsfilm 10 abzusaugen. Dabei werden mit dem Messer 15 einige mm des Vorhanges abgeschnitten. Das Absaugen des Flüssigkeitsfilms sowie des Vorhangrandes bewirkt eine wesentliche Stabilisierung des Vorhanges. Durch das gleichzeitige Absaugen des meistens aus Wasser bestehenden Flüssigkeitsfilms mit der Gelatine enthaltenden Vorhangflüssigkeit wird eine Verdünnung der Gelatine erzielt und damit eine Verkrustung der Absaugwege verhindert.On the top 17 of the knife is in the side guide Suction slot 18 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. 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. By sucking off most of the time Water existing liquid film with the gelatin containing curtain liquid is a dilution of the Gelatin is achieved and thus a crusting of the suction paths prevented.

Um den durch den komprimierten Vorhangrand an der Kante des Saugmessers gebildeten Wulst zu vermeiden, ist an der unteren Kante des Messers ein Saugschlitz 20 angeordnet, der über einen Kanal 21 mit einer Unterdruckanlage verbunden ist, die dieselbe wie für den Absaugschlitz 18 sein kann. Vorzugsweise enthält auch dieser Kanal eine Wasserspülung. Wie in Figur 2 dargestellt, entsteht dadurch ein Rand der Beschichtung 22, der ohne Verlust verwendet werden kann.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.

Die Messerhöhe an der Schneide S des Messers kann 1 - 15 mm betragen und es ist zweckmässig, den Saugschlitz ab einer Messerhöhe von 3 mm zu verwenden, während bei einer 1 Messerhöhe von 1 - 3 mm auf einen Absaugschlitz verzichtet werden kann.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.

Weitere Störungen können durch die vor der Giesserlippe angeordneten Seitenbegrenzungsplatten entstehen, so beispielsweise Schichtdickenfehler im Randbereich, dadurch dass die Giesslösung unter der Wirkung der OberflächenSpannung an den Seiten der Seitenbegrenzungsplatten in die Höhe steigt, falls die Seitenbegrenzungsplatten eine rechtwinklige Stirnseite aufweisen. In Abweichung von diesen vorbekannten Ausführungen werden die SeitenBegrenzungsplatten 2 der erfindungsgemässen Vorrichtung dicht auf die Giesserplatten 1 montiert, siehe Figuren 4 und 5, so dass sie sämtliche Giesserplatten und auch den Bogen 23 der Giesserfrontplatte 5 bis zur Giesserlippe 4 überdecken. Other disorders can be caused by the front of the lip arranged side boundary plates arise, so for example, layer thickness defects in the edge area that the casting solution under the effect of surface tension on the sides of the side boundary plates in the Height increases if the side boundary plates are one have a right-angled face. In deviation from these previously known designs are the side boundary plates 2 of the device according to the invention tightly mounted on the foundry plates 1, see Figures 4 and 5, so that they all cast plates and also the arch 23 of the foundry front plate 5 to the pouring lip 4 cover up.

Aus Figur 5 geht hervor, dass die begrenzende Kante 25 der Seitenbegrenzungsplatten nicht senkrecht ist, sondern eine Schneide 24 aufweist, wobei diese Schneide einen Winkel von beispielsweise 60° einschliesst, das heisst, dass die beiden Kanten der Schneide mit der zur Beschichtung 22 Senkrechten einen Winkel β und Γ von je 10 - 80°, vorzugsweise 60 °, aufweisen. Dabei beträgt der Abstand H zwischen der Schneide 24 und der Oberfläche der Giesserplatten 0,3 - 2,5 mm, vorzugsweise 0,8 mm. Dadurch wird die Wirkung der Oberflächenspannung auf ein Minimum reduziert, und es werden seitliche Verschiebungen der Giesslösung weitgehendst vermieden.It can be seen from FIG. 5 that 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 β and Γ 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.

Es ist selbstverständlich, dass die erfindungsgemässe Vorrichtung bezüglich der angegebenen Masse variiert werden kann und den verschiedensten Beschichtungsbedingungen und Giesslösungskombinationen angepasst werden kann. Während jede einzelne Massnahme bereits weitgehende Verbesserungen bezüglich der Qualität der Beschichtung führt, ergibt eine Kombination sämtlicher Verbesserungen, wie beispielsweise Absaugen der abgeschnittenen Ränder, Absaugen der beim Messer gestauten Giesslösung sowie Vermeidung der durch die Oberflächenspannung bedingten Schichtdickenunterschiede sowie die Führung eines dünnen Flüssigkeitsfilms entlang der Seitenbegrenzungsplatten eine besonders stabile Beschichtung, deren Ränder keine Materialverluste oder Trocknungsprobleme mehr verursachen.It goes without saying that the 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.

Claims (12)

  1. Process for curtain coating a moving substrate with a liquid coating material, more particularly with photographic emulsions, the pouring solution upstream of the pouring lip (4) being guided by lateral limiter plates (2) whose flat sides form an angle with respect to the surface of the pouring solution, characterised in that the two edges of the pouring solution are kept from rising on the sides of the lateral limiter plates (2) under the effect of the surface tension by the fact that the sides (25) of the latter are provided with a cutting edge (24).
  2. Process according to claim 1, where a lateral flow (10) is supplied to the guided curtain (6) on both sides thereof, and the width of the curtain is greater than the width of the coating on the substrate, characterised in that the lateral flow (10) is supplied transversely to the extension of the curtain (6) and in parallel to the front wall (7') of the lateral guides (7).
  3. Process according to claim 2, where both sides of the curtain are cut by means of cutters, characterised in that the cut side portions of the curtain (6) and of the lateral flow (10) are extracted by means of an extracting slit (18) and an extracting channel (19).
  4. Process according to claim 3, characterised in that the portions of the coating solution which are stemmed by the front edge of the cutter are extracted through openings of the cutter in order to prevent the formation of a marginal bead.
  5. Device for carrying out the process according to claim 1, comprising pouring plates (1) and an arcuate pouring front plate leading to the pouring lip (4), as well as lateral limiter plates (2) mounted on both sides whose plane sides form an angle with respect to the surface of the pouring solution, characterised in that the limiting edge (25) of the lateral limiter plates (2) comprises a cutting edge (24) whose two sides include an angle comprised between 10 and 80°, preferably of 60°, with respect to the normal of the coating (22).
  6. Device according to claim 5, characterised in that the lateral limiter plates (2) are tightly mounted on the pouring plates (1) and cover the pouring front plate (5) up to the pouring lip (4).
  7. Device according to claim 5 or 6, characterised in that the distance (H) between the cutting edge (24) and the surface of the pouring plates (1) is comprised between 0.3 and 2.5 mm and preferably equal to 0.8 mm.
  8. Device according to claim 5, further designed to supply a lateral flow (10) to both sides of the guided curtain (6), the width of the curtain being greater than the width of the coating on the substrate, characterised in that a metering slit (11) is disposed above each lateral guide (7) whose slit end (12) is designed to supply the lateral flow (10) in parallel to the front wall (7') of the lateral guide.
  9. Device according to claim 5, comprising respective cutters in order to cut off both sides of the curtain, characterised in that the lateral guide (7) is provided on the upper side (17) of each cutter (15) with an extracting slit (18) which is connected to an extracting channel (19) in order to extract the cut sides of the curtain (6) and of the lateral flow (10).
  10. Device according to claim 9, characterised in that the height of the extracting slit (18) is comprised between 0.05 and 0.5 mm.
  11. Device according to claim 9 or 10, characterised in that the lower edge of the cutter (15) comprises an extracting slit (20) which is connected to an extracting channel in order to prevent the formation of a marginal bead.
  12. Device according to claim 11, characterised in that the extracting slit (18) on the upper side (17) of each cutter (12) and/or the extracting slit (20) at the lower edge (21) of the cutter is provided with a water flushing system.
EP98100165A 1995-04-26 1995-04-26 Process and apparatus for curtain-coating of a moving substrate Expired - Lifetime EP0841589B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59509498T DE59509498D1 (en) 1995-04-26 1995-04-26 Method and device for curtain coating of a moving support
EP98100165A EP0841589B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating of a moving substrate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98100165A EP0841589B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating of a moving substrate
EP19950810277 EP0740197B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating a moving substrate

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP19950810277 Division EP0740197B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating a moving substrate

Publications (3)

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

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EP19950810277 Expired - Lifetime EP0740197B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating a moving substrate
EP98100165A Expired - Lifetime EP0841589B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating of a moving substrate
EP98100164A Revoked EP0841588B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating a moving substrate

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EP19950810277 Expired - Lifetime EP0740197B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating a moving substrate

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Application Number Title Priority Date Filing Date
EP98100164A Revoked EP0841588B1 (en) 1995-04-26 1995-04-26 Process and apparatus for curtain-coating a moving substrate

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EP (3) EP0740197B1 (en)
DE (1) DE59506354D1 (en)

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AT506043A3 (en) * 2007-10-17 2014-02-15 Metso Paper Inc EDGE GUIDE

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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 (en) * 1997-10-03 2000-08-09 Troller Schweizer Engineering AG Process and apparatus for curtain coating a moving substrate
US6887312B1 (en) 2001-03-06 2005-05-03 Voith Paper Patent Gmbh Applicator
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EP0841588A2 (en) 1998-05-13
EP0841588A3 (en) 1998-07-08
EP0841589A2 (en) 1998-05-13
EP0740197B1 (en) 1999-07-07
EP0841589A3 (en) 1998-07-08
EP0740197A1 (en) 1996-10-30
EP0841588B1 (en) 2002-07-10
DE59506354D1 (en) 1999-08-12

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