EP0977636B1 - Procede et dispositif pour appliquer des dispersions sur une bande de materiau - Google Patents

Procede et dispositif pour appliquer des dispersions sur une bande de materiau Download PDF

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Publication number
EP0977636B1
EP0977636B1 EP98924149A EP98924149A EP0977636B1 EP 0977636 B1 EP0977636 B1 EP 0977636B1 EP 98924149 A EP98924149 A EP 98924149A EP 98924149 A EP98924149 A EP 98924149A EP 0977636 B1 EP0977636 B1 EP 0977636B1
Authority
EP
European Patent Office
Prior art keywords
web
dispersion
slot nozzle
strip
barrier layer
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
EP98924149A
Other languages
German (de)
English (en)
Other versions
EP0977636A1 (fr
Inventor
Paul Meier
Bruno Holtmann
Hans Hardegger
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.)
KROENERT GMBH & CO. KG
Original Assignee
Bachofen and Meier AG Maschinenfabrik
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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Application filed by Bachofen and Meier AG Maschinenfabrik filed Critical Bachofen and Meier AG Maschinenfabrik
Publication of EP0977636A1 publication Critical patent/EP0977636A1/fr
Application granted granted Critical
Publication of EP0977636B1 publication Critical patent/EP0977636B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D21H23/48—Curtain coaters
    • 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
    • B05C5/005—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 invention relates to a method and a plant for the production of pressure sensitive adhesive material, in particular for the production of self-adhesive labels, adhesive film strips for informational, labeling or decorative purposes, as well as a method and a plant for the production of a moisture-impermeable packaging material, in which a web-shaped Base material, a moisture-impermeable barrier layer is applied in a free-falling curtain.
  • dispersion pressure-sensitive adhesives in a dispersion formed with water to a sheet-like release material which is then laminated with a printed or to be printed cover material or a cover film.
  • pressure-sensitive adhesives acrylates are preferably applied in an aqueous solution which, when used later, when the release material is removed, for. B. siliconized paper or film, remain adhering to the cover film and thus allow their sticking to objects.
  • a moisture and vapor impermeable barrier layer For the production of moisture-impermeable packaging materials, it is known to apply a moisture and vapor impermeable barrier layer to a web-like base material.
  • a paper or cardboard web or a plastic film made of PVC (polyvinyl chloride), PE (polyethylene), PP (polypropylene), OPP (oriented polypropylene) etc. is used as the base material.
  • a dispersion containing PVDC polyvinylidene chloride
  • the barrier layer is applied to a plastic film as the base material, it is necessary to apply an adhesion promoter to the base material beforehand.
  • application rollers are used to apply the dispersion pressure-sensitive adhesives or the barrier layer to the web material, but they are only able to apply the desired application quantities with the required uniform coating at web speeds of up to approx. 500 m / min.
  • curtain coaters in which coating material is applied to the web in a free-falling curtain by means of a slot nozzle arranged above the web and extending transversely to the web running direction, are known from other technical fields:
  • US-A 3,867,901 describes a method and an apparatus for producing photographic materials such as photographic films or papers, in which a liquid photographic coating composition is applied to a web in a free-falling curtain. Further curtain coaters for the production of photographic materials are described in US Pat. No. 4,830,887 and in EP 0440279 A1.
  • EP 0517223 A1 and JP 09021099 A disclose the use of a curtain coater for applying a pigment coating ink on a paper web in order to improve the quality of printing papers.
  • the slot nozzle shown in JP 09021099 has guide elements on each side immediately next to the outlet gap which extend vertically downwards beyond the web.
  • a curtain coater for applying molten plastic compositions is known from US-A 3,3462,290 and GB-A1,160,190.
  • the molten plastic composition is applied as a barrier layer in a free-falling curtain in order to produce packaging materials, among other things.
  • a stenter machine (English: stenter machine) for finishing textile webs is known, in which coating pastes, foam masses or adhesives are applied in a film to the textile web immediately before drying, which is arranged above the web Watering gutter flows.
  • the invention has for its object to provide a method and a system for producing pressure sensitive adhesive material or a moisture-impermeable packaging material, which (s) the application of a dispersion pressure sensitive adhesive or a barrier layer in a very uniform coating and in an amount of up to 100 g / m 2 at a web speed of more than 500 m / min.
  • the slot nozzle is designed to be height-adjustable.
  • a wet application of the dispersion between 5 g / m 2 and 100 g / m 2 can be applied particularly evenly in a method according to the invention with a device according to the invention.
  • a range between 20 g / m 2 and 50 g / m 2 has proven particularly advantageous.
  • a narrower curtain creates a coating-free edge and thus reduces the risk of water penetrating into the edges and these curling up in a subsequent dryer or coating material reaching the rear and contaminating subsequent machine parts.
  • a coating-free edge is necessary for procedural reasons.
  • Claim 12 contains a particularly advantageous embodiment of a support element.
  • Claims 15 and 16 contain configurations of a device according to the invention with guide elements which prevent the free-falling curtain from being constricted at the edges.
  • the supply of an auxiliary liquid prevents excessive friction between the curtain and a guide element arranged at the edge, from which a different flow speed of the curtain would result at the edges, which could lead to the curtain tearing off (claim 16).
  • a separating element according to claim 16 makes it easy to set different coating widths.
  • the device shown in FIG. 1 is used to apply a dispersion pressure-sensitive adhesive (eg an acrylate) in aqueous solution to a siliconized paper web 1.
  • a dispersion pressure-sensitive adhesive eg an acrylate
  • the device according to the invention can also be used to apply other dispersions (eg Acrylic lacquers) on paper, plastic films or thin metal strips.
  • a deflection roller 2 is mounted at a certain height, from which the web 1 fed from below is deflected into a horizontal (as in the exemplary embodiment) or an inclined course at an acute angle to the horizontal.
  • a slot nozzle 3 extending transversely to the web running direction is suspended in the frame. Below the slot nozzle 3, the web 1 is guided across its entire width on its underside by a support element which ensures a precisely defined web run during application.
  • the deflection roller 2 also serves as a support element.
  • the slot nozzle 3 is connected to a supply for dispersion, not shown, and has on its underside a slot-shaped opening from which the dispersion emerges and forms a free-falling curtain that falls as far as the web surface.
  • the width of the slot of the nozzle 3 is preferably less than the width of the web 1, so that free web edges remain after the application of dispersion.
  • the slot nozzle 3 is adjustable in height between two vertical profiles 4 suspended around the Distance of the outlet slot from the web 1 and thus to be able to adjust the drop height of the dispersion.
  • the stand 4 with the slot nozzle 3 are horizontally movable in and against the web running direction in two lateral rails 5 which extend against the web running direction (to the left in FIG. 1) to an area in front of the deflection roller 2.
  • the slot nozzle 3 can thus be moved into the area in front of the apex line of the deflection roller 2. Your exit slot is then above a collecting trough 6, which is arranged directly in front of the deflection roller 2.
  • Additional support elements from which the horizontally running web 1 is supported on its underside, preferably follow in the web running direction at a distance of less than 1 m from the slot nozzle 3.
  • three rollers 7, 8, 9 forming a roller web support the web 1.
  • fixed elements are used to support the web both below the slot nozzle 3 and behind it, from which the dispersion is not thrown off in the event of a web break. This prevents contamination of the system in the event of a web break.
  • the fixed support elements - as shown in FIG. 4 - preferably consist of a fixed hollow body 37, the wall 38 of which faces the web 1 is made of an air-permeable material.
  • the hollow body 37 is connected to a supply for compressed air which exits through the porous wall 38 and thus forms an air cushion between the web 1 and the wall 38, on which the web 1 slides smoothly.
  • a particularly suitable material for producing the porous wall 38 has been shown to be a porous thermoset aluminum composite material with a pore size of less than 500 ⁇ m.
  • the pore size is preferably between 10 ⁇ m and 100 ⁇ m. With this design, the compressed air losses are very low and the web 1 slides on an air cushion of less than 1 mm in thickness.
  • a fixed support element with a porous boundary wall 38 has the further advantage that it cleans itself. Due to the escaping compressed air, the impact of the dispersion is derived from the somewhat curved or inclined surface without sticking.
  • the boundary wall 38 is preferably designed such that a more or less convexly curved guide surface is formed, the axis of curvature extending transversely to the web running direction.
  • the support roller 2 is also preferred stationary cylinder is formed, the outer surface of which is built up in the area wrapped by the web 1 from cylindrical shell-shaped segments which are made of the porous material. The web 1 can thus be guided very calmly at all positions where it is acted on.
  • a suction nozzle 10 which can be positioned transversely over the edge region and in height, is mounted on the inside of each rail 5 and is connected to a suction line for suctioning off dispersion. So that the vertical distance to the web 1 can be set exactly, the suction nozzle 10 is located exactly above the support roller 8, as shown in FIG. 3.
  • the web 1 is guided to a further support roller 11, which serves as a counter roller for a scraper 12 which can be moved against the top of the web 1 and away from it.
  • the scraper 12 extends across the web width. It is attached to a pivotally mounted holder 13 which extends over the working width.
  • the holder 13 is mounted on each longitudinal side of the device in a support 14 attached to the frame of the device.
  • the pivoting movement of the scraper 12 against the web 1 and away from it is brought about by means of a piston-cylinder unit 37 which is fastened on the one hand to the support 14 and on the other hand to the holder 13.
  • a suction device is arranged in front of it in the web running direction.
  • the suction device is preferably also suspended from the supports 14 and contains a rear storage wall 15 which, together with the scraper 12, forms a suction chamber which is open towards the web 1 and from which the excess dispersion is suctioned off.
  • guide elements 41 are arranged at both ends of the slot 40 of the slot nozzle 3 and extend downward into the vicinity of the web 1 and counteract a constriction of the edges.
  • a preferred embodiment of a nozzle 3 with guide elements 41 is shown in FIG. 2: On each of the two sides of the slot nozzle 3, a guide element 41 is fastened directly next to the outlet gap 40, which is flat on its inside 42 facing the curtain 39.
  • the inner surface 42 extends from the nozzle 3 to the web 1 at an angle between 0 ° and 10 ° to the center of the curtain 39.
  • each guide element 41 which forms the end of the inner surface 42, is preferably designed as a tear-off edge 47 so that the edge of the curtain 39 leaves the guide element 41 in a defined flow without undesired deflection to the outside.
  • each guide element 41 has a through hole which serves as a feed line 43 for supplying an auxiliary liquid to the inner surface 42.
  • a liquid which reduces the surface tension for example water, water with a wetting agent or a dispersion diluted with water, is used as the auxiliary liquid.
  • the feed line 43 opens into the upper part of a feed channel 44 of approximately 20 mm in length, which runs vertically downward above the outlet gap 40 and whose outlet opening is located at the level of the outlet gap 40 of the nozzle 3 directly next to it.
  • the feed channel 44 is realized in a structurally simple manner in such a way that a vertical left-hand groove reaching up to the bore 43 is worked into the inner surface 42 of the guide element 41 in the region of the slot nozzle 3 and is sealed by the guide element 41 on the side wall of the nozzle 3 when the guide element 41 is fastened.
  • auxiliary liquid supplied to the guide element 41 above and flowing down on the inner surface 42 has a substantially vertically downward flow when it comes into contact with the edge of the curtain 39 - in the example when it leaves the feed channel 44 at the level of the outlet flap 40 , the speed of which is at least as great as the exit speed of the dispersion from the nozzle 3. This ensures that there is no delay in the curtain edges on the guide elements 41 which affects the stability of the curtain 39 compared to the falling speed of the curtain 39 in the central region.
  • the inner surfaces 42 are designed so that they can be wetted well by the auxiliary liquid.
  • transverse forces act on the curtain 39 at its edges without its stability being influenced by decelerating the falling speed or by transverse currents at the edges.
  • a separating element 45 is arranged between the underside of the guide element 41 and the web 1 and extends from the outside inwards into the area of the web 1.
  • Each separating element 45 is slidably mounted transversely to the direction of web travel so that different coating widths can be set.
  • the transverse adjustment of each separating element 45 is preferably carried out automatically by means of an actuating motor in such a way that each separating element 45 can be adjusted at least 500 mm in order to be able to set widely differing coating widths.
  • Each separating element 45 has an upper collecting surface 46, which preferably extends inclined outwards, so that the impinging dispersion runs outwards. In the direction inwards, that is to say towards the center of the curtain, the collecting surface 46 curves upward in a sharp separating edge 48 which cuts through the curtain 39 at the desired point in the manner of a blade.
  • FIG. 3 shows the system diagram for a continuous production of pressure sensitive adhesive material
  • a paper web 1 is drawn off as a separating material from a winding roll 17 suspended in a unwinding device 16 and is first fed to a coating unit 18 for silicone.
  • the applicator unit 18 is a known roller applicator unit; a slot nozzle can also be used at this point, from which the silicone is applied to the web 1 in a free-falling curtain.
  • the applicator 18 is followed by a dryer 19 for crosslinking the silicone, alternatively a device for irradiation with UV radiation can also be used.
  • the dryer 19 is followed by a device for applying a dispersion pressure-sensitive adhesive, as was described in more detail above under FIG. 1.
  • the web is fed to a further dryer 20, with which the adhesive is dried.
  • a laminating station 21 in which the web 1 on its side provided with pressure-sensitive adhesive with a cover material or Cover film 22 is laminated.
  • the cover material or the cover film 22 is continuously drawn off from a winding roll 24 suspended in a roll-off device 23.
  • the laminated web 25 is then wound up in a winding device 26 to form a winding roll 27.
  • FIG. 4 shows the diagram of a plant for the continuous production of liquid-tight packaging material.
  • the nozzle 3 with its auxiliary units 10, 12 is arranged as close as possible to the floor below the dryers 19, 20.
  • the arrangement of the nozzle 3 with the auxiliary units 10, 12 in the hallway area has the advantage, on the one hand, that easier maintenance (cleaning, adjustments) by the operating personnel is possible, and secondly, it is considerably cooler in the hallway area below the dryer 19.20. Because of these advantages, the nozzle 3 with its auxiliary units 10, 12 can also be arranged below the dryer 19, 20 in the system according to FIG. 3.
  • a web-shaped base material made of paper, cardboard or a plastic (PVC, PE, PP, OPP etc.) is drawn off from a winding roll 17 suspended in the unwinding device 16 and first fed to the applicator unit 18.
  • An adhesion promoter (primer) is applied there, which is then dried in the dryer 19.
  • Basic materials are also used for packaging materials that do not require the application of an adhesion promoter. Then the applicator 18 and the dryer 19 are unnecessary.
  • the web is deflected downward and guided to a device which applies a liquid and vapor-tight barrier layer.
  • the device contains a slot nozzle 3 as an application element, from which the barrier material falls down onto the web 1 in a free curtain.
  • a dispersion containing PVDC polyvinylidene chloride
  • the material for the barrier layer can additionally contain pigments.
  • the preferably used fixed support elements are shown, on which the web 1 slides on an air cushion during the order.
  • the barrier layer is then dried in the dryer 20. Finally, the web 1 is wound up in the winding device 26 to form a winding roll 27.
  • the slit nozzle 3 is first adjusted in its vertical position so that the height of the curtain emerging from it is between 20 mm and 500 mm.
  • the slot nozzle 3 is moved into a position in front of the apex line of the deflecting roller 2 (to the left in FIG. 1), so that its outlet slot is located above the tub 6.
  • dispersion is fed from the storage container 8 into the slot nozzle 3.
  • a curtain is formed which falls into the tub 6.
  • the material web 1 is pulled off the winder roll 17 and guided through the application unit 18, where, depending on the application, first a repellent material, in the example silicone, or an adhesion promoter is applied.
  • a repellent material in the example silicone, or an adhesion promoter
  • the slit nozzle 3 is moved into its working position above the deflecting roller 2 in the direction of web travel.
  • the dispersion curtain emerging from the nozzle 3 strikes the material web 1.
  • the suction nozzles 10 for the edge suction on each side are positioned and switched on in order to suction off the additional application at the web edges.
  • the scraper 12 is pivoted downwards at the top of the web 1 and scrapes off the bead of dispersion formed at the start of the job.
  • the scraper 12 When the dispersion in the impact zone is stretched from the running web 1 to the desired layer thickness, the scraper 12 is pivoted upward into a rest position.
  • the dispersion feed to the nozzle 3 is adjusted so that an amount of 5 g / m 2 - 100 g / m 2 , preferably 20 g / m 2 - 50 g / m 2 , is applied to the web 1 as a wet application.
  • the applied dispersion is then dried in the dryer 20.
  • the web 1 is fed to the laminating station 21 after the dryer 20. There, the side provided with dispersion pressure-sensitive adhesive is laminated with a cover film 22 removed from the material web 24. The laminated web 25 is then wound up in the reel-up device 26 to form a winding roll 27.
  • the web 1 provided with a barrier layer is fed to the reel-up device 26 directly after drying in the dryer 20 and is wound up there to form a winding roll 27.
  • the barrier layer e.g. with a PE layer
  • the lamination is carried out in the manner described above for the system according to FIG. 3.
  • FIG. 5 schematically shows the device for venting the dispersion before it is fed into the nozzle 3:
  • the dispersion is fed to the nozzle 3 from a storage container 28, the amount supplied to the nozzle 3 being controlled by a metering pump 29. If necessary, the dispersion is filtered on its way to the nozzle 3 by means of a filter 30. To remove air bubbles from the dispersion, the storage container 28 is connected to a self-contained ventilation circuit which is independent of the feed line to the slot nozzle 3. This makes it possible to control the feed quantity into the slot nozzle 3, on which the discharge quantity of the nozzle 3 and thus the application quantity on the web 1 depends, without being influenced by the venting.
  • a portion of the dispersion is permanently drawn off from the storage container 28 by means of a pump 31 and fed to a ventilation container 32.
  • the ventilation tank 32 is connected to a vacuum pump via a line 33.
  • a prefilter 35 is arranged in the return line 34 from the venting device into the storage container 28.
  • New dispersion is fed into the storage container 28 by means of a feed line 36.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Wrappers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Adhesive Tapes (AREA)

Claims (16)

  1. Procédé de fabrication de matériau adhésif, comprenant les étapes de procédé suivantes :
    a) application d'un matériau répulsif, en particulier de la silicone, sur un matériau de séparation en forme de bande, en particulier sur une bande de papier (1),
    b) liaison du matériau répulsif sur le matériau de séparation par séchage ou irradiation,
    c) application d'un adhésif dispersé dans une dispersion formée avec de l'eau au moyen d'une buse à fente (3) disposée au-dessus de la bande (1) et s'étendant transversalement à la direction d'avance de la bande en un rideau tombant librement (39) sur la bande (1),
    d) séchage de l'adhésif dispersé,
    e) contre-collage avec un matériau de recouvrement.
  2. Procédé de fabrication d'un matériau d'emballage imperméable à l'humidité, dans lequel on applique sur un matériau de base en forme de bande une couche barrière imperméable à l'humidité en un rideau tombant librement (39), la couche barrière
    a) étant appliquée sur le matériau de base en forme de bande au moyen d'une buse à fente (3) disposée au-dessus de la bande (1) et s'étendant transversalement à la direction d'avance de la bande et
    b) dans une dispersion formée avec de l'eau, en particulier contenant du PVDC (chlorure de polyvinylidène), ayant une viscosité de 20 mPas à 80 mPas, de préférence de 40 mPas à 50 mPas.
  3. Procédé selon la revendication 2, dans lequel on utilise en tant que matériau de base un film plastique sur lequel on applique un promoteur d'adhésion avant l'application de la couche barrière.
  4. Procédé selon l'une quelconque des revendications 1 à 3, dans lequel la hauteur de chute de la dispersion est comprise entre 20 mm et 500 mm.
  5. Procédé selon l'une quelconque des revendications 1 à 4, dans lequel l'application humide de la dispersion est de 5 g/m2 - 100 g/m2, de préférence de 20 g/m2 - 50 g/m2.
  6. Procédé selon l'une quelconque des revendications 1 à 4, dans lequel la largeur du rideau tombant librement (39) est inférieure à la largeur de la bande de matériau (1).
  7. Installation de fabrication de matériau adhésif comprenant les composants suivants, disposés les uns derrière les autres dans la direction d'avance de la bande :
    a) un dispositif d'enduction (18) pour l'application d'un matériau répulsif, en particulier de la silicone, sur un matériau de séparation en forme de bande, en particulier sur une bande de papier (1),
    b) un sécheur (19) ou un dispositif à UV pour la liaison du matériau répulsif,
    c) un dispositif pour l'application d'un adhésif dispersé dans une dispersion formée avec de l'eau, qui contient une buse à fente (3) disposée au-dessus de la bande (1), s'étendant transversalement à la direction d'avance de la bande, et depuis laquelle la dispersion est appliquée en un rideau tombant librement (39) sur la bande (1),
    d) un sécheur (20) pour le séchage de l'adhésif dispersé,
    e) un appareil de contre-collage (21) pour contre-coller la bande (1) avec un matériau de recouvrement (22).
  8. Installation de fabrication d'un matériau d'emballage imperméable à l'humidité, comprenant les composants suivants :
    a) un dispositif d'enduction (18) pour l'application d'un promoteur d'adhésion sur un matériau de base (1) en forme de bande, en particulier sur un film plastique,
    b) un sécheur (19) pour le séchage du promoteur d'adhésion,
    c) un dispositif pour l'application d'une couche barrière dans une dispersion formée avec de l'eau, qui contient une buse à fente (3) disposée au-dessus de la bande (1), s'étendant transversalement à la direction d'avance de la bande, et depuis laquelle la dispersion est appliquée en un rideau tombant librement (39) sur la bande (1),
    d) un sécheur (20) pour sécher la couche barrière.
  9. Installation selon la revendication 8, dans laquelle un appareil de contre-collage pour le contre-collage de la bande (1) avec un film en plastique est disposé après le sécheur (20) pour sécher la couche barrière.
  10. Installation selon l'une quelconque des revendications 7 à 9, dans laquelle la buse à fente (3) peut être ajustée en hauteur pour l'ajustement de la hauteur de chute.
  11. Installation selon l'une quelconque des revendications 7 à 10, dans laquelle la bande (1) est guidée de manière supportée au niveau de sa face inférieure dans la région de la buse à fente (3) par au moins un élément de support.
  12. Installation selon la revendication 11, dans laquelle l'élément de support utilisé est un corps creux fixe (37) dont la paroi (38) tournée vers la bande (1) est fabriquée en un matériau perméable à l'air et est raccordée à une alimentation en air sous pression.
  13. Installation selon l'une quelconque des revendications 7 à 12, dans laquelle la largeur de la fente de la buse à fente (3) est inférieure à la largeur de la bande (1).
  14. Installation selon l'une quelconque des revendications 7 à 13, dans laquelle sur chacun des deux côtés de la buse à fente (3) directement à côté de la fente de sortie (40) est disposé à chaque fois un élément de guidage (41) s'étendant verticalement vers le bas jusqu'à proximité de la bande (1), ces éléments de guidage agissant à l'encontre d'un resserrement des bords du rideau tombant librement (39).
  15. Installation selon la revendication 14, dans laquelle un liquide auxiliaire est acheminé en haut à la surface intérieure (42) des éléments de guidage (41) par le biais d'un canal d'alimentation (44) qui s'étend au-dessus de la fente de sortie (40) de la buse à fente (3) verticalement vers le bas et qui débouche dans une conduite d'alimentation (43) pour le liquide auxiliaire.
  16. Installation selon la revendication 14 ou 15, dans laquelle en dessous de chaque élément de guidage (41) est disposé un élément de séparation (45) pour la séparation du bord du rideau avant le contact avec la bande (1), les éléments de séparation (45) étant à chaque fois réglables transversalement à la direction d'avance de la bande.
EP98924149A 1997-04-21 1998-04-20 Procede et dispositif pour appliquer des dispersions sur une bande de materiau Revoked EP0977636B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19716466A DE19716466A1 (de) 1997-04-21 1997-04-21 Verfahren und Vorrichtung zum Auftragen von Dispersionen auf eine Materialbahn
DE19716466 1997-04-21
PCT/EP1998/002307 WO1998047630A1 (fr) 1997-04-21 1998-04-20 Procede et dispositif pour appliquer des dispersions sur une bande de materiau

Publications (2)

Publication Number Publication Date
EP0977636A1 EP0977636A1 (fr) 2000-02-09
EP0977636B1 true EP0977636B1 (fr) 2003-01-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98924149A Revoked EP0977636B1 (fr) 1997-04-21 1998-04-20 Procede et dispositif pour appliquer des dispersions sur une bande de materiau

Country Status (8)

Country Link
EP (1) EP0977636B1 (fr)
JP (1) JP2000510389A (fr)
CN (1) CN1140357C (fr)
AT (1) ATE231747T1 (fr)
DE (2) DE19716466A1 (fr)
DK (1) DK0977636T3 (fr)
ES (1) ES2191937T3 (fr)
WO (1) WO1998047630A1 (fr)

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DE102005059966A1 (de) * 2005-12-15 2007-06-21 Polytype Converting S.A. Vorhangbeschichter mit seitlich verstellbarer Abkantung
DE102006060954A1 (de) * 2006-12-20 2008-06-26 Inatec Gmbh Laminierverfahren und -vorrichtung zum Auftragen eines Films einer Klebstoffzusammensetzung auf ein bahnförmiges Substrat
EP2719534A2 (fr) 2012-10-10 2014-04-16 Polytype Converting S.A. Procédé de production d'un matériau d'emballage à barrière élevée et matériau d'emballage à barrière élevée

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JP4706111B2 (ja) * 2001-03-06 2011-06-22 株式会社Ｉｈｉ 多層塗工紙製造方法及び装置
DE10117668A1 (de) * 2001-04-09 2002-10-10 Bachofen & Meier Ag Buelach Vorrichtung zum Beschichten einer laufenden Materialbahn
EP1249533A1 (fr) 2001-04-14 2002-10-16 The Dow Chemical Company Procédé de fabrication de papier ou carton enduit muticouche
US7364774B2 (en) 2002-04-12 2008-04-29 Dow Global Technologies Inc. Method of producing a multilayer coated substrate having improved barrier properties
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DE10227934A1 (de) * 2002-06-21 2004-01-08 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum ein- oder beidseitigen Auftragen eines flüssigen bis pastösen Mediums
DE10236908A1 (de) * 2002-08-12 2004-02-26 Voith Paper Patent Gmbh Vorrichtung zum Auftragen eines Auftragsmediums auf einen sich bewegenden Untergrund
AU2002335033A1 (en) * 2002-10-15 2004-05-04 Dow Global Technologies Inc. Method of producing a multilayer coated substrate having improved barrier properties
EP1437303B2 (fr) * 2003-01-08 2012-12-12 Focke & Co. (GmbH & Co. KG) Procédé et dispositif pour appliquer de l'adhésif à matériel d'emballage
FI20030976A (fi) * 2003-06-30 2004-12-31 M Real Oyj Päällystetty pohjapaperi ja menetelmä päällystetyn pohjapaperin valmistamiseksi
WO2005028750A1 (fr) * 2003-09-16 2005-03-31 Voith Paper Patent Gmbh Procede et dispositif de fabrication d'un papier decoratif, et utilisation de ce papier
DE10343038A1 (de) * 2003-09-16 2005-04-07 Voith Paper Patent Gmbh Auftragsverfahren
DE10345813A1 (de) * 2003-09-30 2005-04-14 Voith Paper Patent Gmbh Auffangwanne
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ITMI20040804A1 (it) * 2004-04-23 2004-07-23 Tocchio S R L Metodo ed apparecchiatura per la realizzazione di carte decorative e di pannelli laminati incorporanti tali carte decorative in particolare carte decorative e pannelli di copertura di superfici di pavimentazione mobili o pareti
FI20055024A (fi) * 2005-01-18 2006-07-19 Metso Paper Inc Menetelmä kuivareunapäällystyksenä toteutettavassa verhopäällystyksessä päällystettävän radan reunaan syntyvän reunavallin poistamiseksi
FI117175B (fi) * 2005-01-27 2006-07-14 Metso Paper Inc Tuentajärjestely paperi-/kartonkirainan verhopäällystyksessä
FI118228B (fi) * 2006-02-01 2007-08-31 Metso Paper Inc Menetelmä kemikaalin tai kemikaaliseoksen syöttämiseksi kuiturainakoneessa ja menetelmää soveltava laite
EP2018411B1 (fr) * 2006-05-11 2011-03-16 Basf Se Ruban adhésif double face
DE102006030183A1 (de) * 2006-06-30 2008-01-03 Polytype Converting S.A. Vorhangbeschichter mit poröser Vorhangführungsstruktur, Vorhangführungsstruktur für einen Vorhangbeschichter und Verfahren zur Herstellung der Vorhangführungsstruktur
DE102007000777A1 (de) 2007-09-27 2009-04-02 Voith Patent Gmbh Auftragsvorrichtung
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JP5169571B2 (ja) * 2008-07-22 2013-03-27 株式会社リコー カーテン塗布方法及び装置
JP4905817B1 (ja) * 2010-12-15 2012-03-28 大阪シーリング印刷株式会社 カーテンコーター、塗工液誘導具
CN103643422A (zh) * 2013-12-12 2014-03-19 江阴市汇通包装机械有限公司 涂布机
CN105964485A (zh) * 2016-06-11 2016-09-28 深圳市新嘉拓自动化技术有限公司 帘式涂布供胶机构
DE102020114120B4 (de) 2020-05-27 2022-03-31 Voith Patent Gmbh Beschichtungsvorrichtung
DE202020103014U1 (de) 2020-05-27 2020-06-05 Voith Patent Gmbh Beschichtungsvorrichtung

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Publication number Priority date Publication date Assignee Title
DE102005059966A1 (de) * 2005-12-15 2007-06-21 Polytype Converting S.A. Vorhangbeschichter mit seitlich verstellbarer Abkantung
DE102005059966B4 (de) * 2005-12-15 2007-10-31 Polytype Converting S.A. Vorhangbeschichter mit seitlich verstellbarer Abkantung
DE102006060954A1 (de) * 2006-12-20 2008-06-26 Inatec Gmbh Laminierverfahren und -vorrichtung zum Auftragen eines Films einer Klebstoffzusammensetzung auf ein bahnförmiges Substrat
EP2719534A2 (fr) 2012-10-10 2014-04-16 Polytype Converting S.A. Procédé de production d'un matériau d'emballage à barrière élevée et matériau d'emballage à barrière élevée

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EP0977636A1 (fr) 2000-02-09
DK0977636T3 (da) 2003-06-23
WO1998047630A1 (fr) 1998-10-29
DE19716466A1 (de) 1998-10-22
CN1252741A (zh) 2000-05-10
ATE231747T1 (de) 2003-02-15
DE59807071D1 (de) 2003-03-06
ES2191937T3 (es) 2003-09-16
JP2000510389A (ja) 2000-08-15
CN1140357C (zh) 2004-03-03

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