EP1208917A2 - Dispositif de revêtement par rideau - Google Patents

Dispositif de revêtement par rideau Download PDF

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Publication number
EP1208917A2
EP1208917A2 EP01124923A EP01124923A EP1208917A2 EP 1208917 A2 EP1208917 A2 EP 1208917A2 EP 01124923 A EP01124923 A EP 01124923A EP 01124923 A EP01124923 A EP 01124923A EP 1208917 A2 EP1208917 A2 EP 1208917A2
Authority
EP
European Patent Office
Prior art keywords
application
approximately
layer
application medium
application device
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.)
Granted
Application number
EP01124923A
Other languages
German (de)
English (en)
Other versions
EP1208917A3 (fr
EP1208917B1 (fr
Inventor
Manfred Ueberschär
Benjamin Méndez-Gallon
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent 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
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1208917A2 publication Critical patent/EP1208917A2/fr
Publication of EP1208917A3 publication Critical patent/EP1208917A3/fr
Application granted granted Critical
Publication of EP1208917B1 publication Critical patent/EP1208917B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • 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
    • 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

Definitions

  • the invention relates to a device for applying at least one first layer and at least one second layer liquid or pasty application medium, in particular aqueous pigment suspension a running subsurface, where the subsurface is the Surface of a material web, in particular made of paper or cardboard, and at indirect application, preferably the surface of a transfer element a transfer roller, which then applies the application medium to the surface transfers the web of material, and wherein the application device comprises at least two curtain works, each of which is respective application medium from a dispensing nozzle as essentially gravity moving curtain or veil on the surface emits.
  • the material web is basically a paper web, a cardboard web
  • the invention is intended to be based on a film web or a textile web of the example of the production of special papers are explained in more detail.
  • special papers can, for example, carbonless paper (CB, CF or CFB paper), paper for inkjet printers, siliconized paper, Thermal paper, light and heat sensitive photo paper and the like Be papers.
  • an application device Specify the type mentioned above, which has a simpler structure features.
  • the density of that forming the first layer Application medium is at least 10% higher than the density of the second layer of application medium.
  • the viscosity of the one forming the first layer Application medium is greater than the viscosity of the second layer forming application medium, as this will avoid damage of the primer (first application medium) due to the tensile load on the Application of the top coat (second application medium) helps to contribute.
  • the application medium can be an aqueous solution or a aqueous dispersion of solid particles, for example an acrylate or butadiene styrene dispersion.
  • the solid particles can mineral pigments or microscopic plastic particles, for example plastic pigments or ink-filled microcapsules, or starch include.
  • the solids content of the application medium can be between about 5% by weight and about 70% by weight.
  • the application medium a viscosity determined by Brockfield at 100 rpm of between about 10 mPas and about 2000 mPas.
  • the application medium forming the first layer can be applied to the substrate with a layer thickness of between approximately 2 ml / m 2 and approximately 20 ml / m 2 .
  • the application medium forming the second layer can be applied to the substrate with a layer thickness of between approximately 5 ml / m 2 and approximately 30 ml / m 2 .
  • the order media discussed above for the formation of the first and second order layers focus in particular on the application of Production of graphic papers, in particular carbonless paper from.
  • the primer (first application medium) has in this case one task, a barrier layer for those in the top coat (second Application medium) contained ink-filled microcapsules to provide the holds it securely on the surface of the carbonless paper.
  • second Application medium contains ink-filled microcapsules to provide the holds it securely on the surface of the carbonless paper.
  • it also has the task of leveling out the unevenness of the base paper and form a smooth primer for the top coat so that the top coat without further ado covering the entire surface of the Material web of substantially constant thickness can be formed. This is for an equally even distribution of the microcapsules and thus for a uniform color density by means of the carbonless paper achieved lines of great importance.
  • the microcapsule containing Medium can be made special with the help of the curtain application process apply gently.
  • At least one of the application media applied to the substrate essentially in a pre-dosed form ("1: 1" order), which is advantageous in several ways.
  • this enables the circulating quantities of application medium be reduced. This allows the use of less powerful and thus cheaper pumps, from paint lines with less Cross-sectional area, of smaller storage containers and the like more.
  • the "1: 1" order still reduces contamination of the application media with water, fibers or other substances that differ from the raw or can also detach the pre-coated material web.
  • the Invention proposed that in the fall path of the curtain or veil at least one guide element is arranged which covers the curtain or veil along at least part of the fall path essentially on it entire width leads.
  • the words "can lead along the fall path” also mean that the application medium curtain through the guide element be deflected from the path corresponding to the free fall can.
  • the beneficial effect that this guide element has on the application medium curtain is most likely due to the fact that the order medium Slightly slowed down when contacting the guide element becomes what stabilizes the shape of the application medium curtain. With increasing Movement of the application medium takes place along the guide element but then the falling speed, more precisely the flow speed of the application medium along the guide element, again.
  • the area between the curtain coats a device for influencing the there and in particular to the Application medium curtains and the background pressure assigned.
  • media used can both the generation of a negative pressure and the generation of a positive pressure.
  • Negative pressure can one the detachment of the first application medium curtain from a guide scraper (i.e. a guiding element used to weaken one of the underground air boundary layer carried against it) and the other the wetting of the top coat on the primer can be improved.
  • a guide scraper i.e. a guiding element used to weaken one of the underground air boundary layer carried against it
  • overpressure can make the primer better informed Material web can be anchored and secondly both curtains (for primer and top coat) can be stabilized because the overpressure of their The tendency to flutter reduces.
  • an application device is generally at 10 designated. It serves to apply a multilayer coating 12 on a substrate U moving in the running direction L, for example a paper web 14.
  • the application device 10 comprises a first curtain application unit 16, which is a first application medium 18, for example a starch solution or starch suspension, as a primer 20 on the surface 14a of the Paper web 14 applies.
  • the application device 10 further comprises a second curtain applicator 22, the application medium 24 as one Cover stroke 26 on that applied by the first curtain applicator 16 Apply primer 20.
  • the application medium 24 of the top coat 26 can for example a dispersion or suspension of ink-filled microcapsules be, these microcapsules being indicated by dots in FIG. 1.
  • Both application units 16 and 22 indicate the application medium 18 and 24 in Form of an application medium curtain 28 or 30 from. It is immediate subsequent to the discharge opening 16a or 22a of the application units 16, 222 a guide blade 32 or 34 is provided, the length of which in the direction of flow of the application medium 18 or 24 depending on the properties of the respective order medium is dimensioned or adjusted so that the Application medium curtain 28 or 30 adjoining the tear-off edge 32a or 34a takes a substantially vertical course (direction V), that is neither shows the so-called "teapot effect” nor parabolic over the tear-off edge 32a or 34a "shoots out”.
  • scraper element 36 In the area of the primer application unit 16 there is also a scraper element 36 against the surface 14a of the paper web 14.
  • This scraper element 36 serves on the one hand to weaken or eliminate the Paper web 14 on its surface 14a entrained air boundary layer G.
  • the scraper element 36 catches the application medium curtain 28, stabilizes it due to the viscous frictional forces between the application medium 18 and the surface 36a of the scraper element 36 and directs the application medium 18 to the surface 14a of the paper web 14.
  • a distance D from each other which is between about 100 mm and about 500 mm. This distance D is sufficient for the primer 20 to be sufficiently on the surface of the paper web 14a immobilize so that an impairment or even damage to the primer 20 by the impact of the top coat curtain 30 is not to be feared.
  • a suction / blow box 42 is provided between the two curtain applicators.
  • this suction / blow box 42 can the pressure in a space 44, which is from the two applicators 16 and 22, the two application medium curtains 28 and 30, the paper web 14 and the suction / blow box 42 itself is changed become. Sucking air to create a vacuum in the Room 44 and the blowing in of air to create an overpressure in this space are in Fig. 1 by the arrows S (suction) or B (bubbles) indicated.
  • FIG. 10 An example of an application system 50 is shown in FIG the application device 10 according to the invention can be used.
  • the material web 14 moving in the running direction L is on it Surface 14a by the curtain application device according to the invention 10 with a "wet-on-wet" order 12.
  • an application layer 54 also on the back 14b of the material web 14 applied.
  • This back coating of the material web 14 takes place by means of an indirectly working order unit 52, which is the order medium first applies to the surface 56a of a transfer roller 56, which then conveys the application medium 58 to the material web 14.
  • the roller 56 also serves in the illustrated order system 50 as Web deflection element for the material web 14.
  • a further web deflection element 60 is provided for application device 10.
  • This web guide element 60 is in the illustrated embodiment as non-contacting web deflecting element, preferably as so-called air-turn, in order to impair the "wet-on-wet" order 12 to prevent by the web guide element 60. Downstream of the web guiding element 60 is then followed by a drying device 62.
  • the application system 50 according to FIG. 2 is characterized by a special simple web guide, the material web especially in the area the curtain applicator 10 is unsupported.
  • the web of material 14 can therefore be triple-coated in a very gentle manner become.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Saccharide Compounds (AREA)
EP01124923A 2000-11-22 2001-10-19 Dispositif de revêtement par rideau Expired - Lifetime EP1208917B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10057729 2000-11-22
DE10057729A DE10057729A1 (de) 2000-11-22 2000-11-22 Vorhang-Auftragsvorrichtung

Publications (3)

Publication Number Publication Date
EP1208917A2 true EP1208917A2 (fr) 2002-05-29
EP1208917A3 EP1208917A3 (fr) 2005-03-30
EP1208917B1 EP1208917B1 (fr) 2008-02-27

Family

ID=7664105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01124923A Expired - Lifetime EP1208917B1 (fr) 2000-11-22 2001-10-19 Dispositif de revêtement par rideau

Country Status (5)

Country Link
US (2) US20020066404A1 (fr)
EP (1) EP1208917B1 (fr)
JP (1) JP3942874B2 (fr)
AT (1) ATE387262T1 (fr)
DE (3) DE10057729A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2082811A2 (fr) 2008-01-22 2009-07-29 Voith Patent GmbH Dispositif d'application à rideaux à couches multiples
WO2013171776A3 (fr) * 2012-05-18 2014-04-17 Claudio Selva Procédé et appareil d'apport de support pour le transfert d'un dessin univoque, et support ainsi obtenu
WO2018137932A1 (fr) * 2017-01-25 2018-08-02 Voith Patent Gmbh Mécanisme d'application à nappe et procédé d'application d'une substance à appliquer

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EP1249533A1 (fr) 2001-04-14 2002-10-16 The Dow Chemical Company Procédé de fabrication de papier ou carton enduit muticouche
FI111562B (fi) * 2002-01-16 2003-08-15 Metso Paper Inc Menetelmä ja laitteisto käsittelyaineen syöttämiseksi liikkuvalle pinnalle
US7364774B2 (en) * 2002-04-12 2008-04-29 Dow Global Technologies Inc. Method of producing a multilayer coated substrate having improved barrier properties
US7473333B2 (en) * 2002-04-12 2009-01-06 Dow Global Technologies Inc. Process for making coated paper or paperboard
US7563326B2 (en) * 2002-06-24 2009-07-21 Voith Paper Patent Gmbh Device for coating and drying both sides of a material web of paper or board
DE10228114A1 (de) * 2002-06-24 2004-01-15 Voith Paper Patent Gmbh Vorrichtung zum beidseitigen Streichen und zum Trocknen einer Materialbahn, insbesondere aus Papier oder Karton
FI115546B (fi) * 2002-09-20 2005-05-31 Metso Paper Inc Menetelmä verhopäällystimen ajo-olosuhteiden muuttamiseksi ja menetelmää soveltava järjestely
AU2002335832A1 (en) * 2002-10-15 2004-05-04 Dow Global Technologies Inc. Process for making coated paper or paperboard
US20040121080A1 (en) * 2002-10-17 2004-06-24 Robert Urscheler Method of producing a coated substrate
DE10320146A1 (de) * 2003-05-06 2004-11-25 Voith Paper Patent Gmbh Mehrschicht-Auftragsvorrichtung zum Auftragen von Auftragsmedium im Wege wenigstens eines mehrschichtigen Vorhangs oder Schleiers
DE10351624A1 (de) * 2003-11-05 2005-06-09 Voith Paper Patent Gmbh Maschine zum Behandeln einer laufenden Materialbahn auf Grundlage wenigstens eines Vorhang-Auftragswerks und wenigstens einer Kontaktlos-Materialbahntrocknungseinrichtung
DE10352074A1 (de) * 2003-11-07 2005-06-09 Voith Paper Patent Gmbh Auftragvorrichtung
JP2005161153A (ja) * 2003-12-01 2005-06-23 Voith Paper Patent Gmbh ダブル塗工装置
DE10358754B4 (de) * 2003-12-12 2011-07-14 M-Real Oyj Bahnfördervorrichtung
DE10359117A1 (de) * 2003-12-17 2005-07-28 Voith Paper Patent Gmbh Vorhangauftragswerk
DE10359122A1 (de) * 2003-12-17 2005-07-14 Voith Paper Patent Gmbh Auftragsvorrichtung
DE102004011230B4 (de) * 2004-03-04 2005-12-29 Papierfabrik August Koehler Ag Verfahren zur Herstellung eines Thermopapiers
DE102004022416B4 (de) * 2004-05-06 2013-02-21 Voith Patent Gmbh Verfahren und Vorrichtung zum Behandeln einer Bahn aus Papier oder Karton
US20080254239A1 (en) * 2004-09-30 2008-10-16 Nippon Paper Industries Co., Ltd. Method for Preparation of Thermally Sensitive Recording Medium
FI121084B (fi) * 2004-12-01 2010-06-30 Metso Paper Inc Menetelmä ja sovitelma kuituradan käsittelemiseksi
DE102004062119A1 (de) * 2004-12-23 2006-07-13 Voith Paper Patent Gmbh Verfahren zum direkten Aufbringen einer Mehrfachschicht auf eine laufende Papier-, Karton- oder andere Faserstoffbahn
FI117344B (fi) * 2004-12-31 2006-09-15 M Real Oyj Päällystetty paperituote sekä menetelmä ja laitteisto sen valmistamiseksi
JP4746894B2 (ja) * 2005-03-14 2011-08-10 ボイス ペ−パ− パテント ゲ−エムベ−ハ− 塗工装置
JP4766660B2 (ja) * 2005-06-03 2011-09-07 ボイス ペ−パ− パテント ゲ−エムベ−ハ− ２層式カーテンコータ
WO2007026919A1 (fr) * 2005-08-30 2007-03-08 Kansai Paint Co., Ltd. Procede de formation d’un film de revetement multicouche brillant
JP4902984B2 (ja) * 2005-11-01 2012-03-21 ボイス ペ−パ− パテント ゲ−エムベ−ハ− 塗工装置および塗工方法
JP4902983B2 (ja) * 2005-11-01 2012-03-21 ボイス ペ−パ− パテント ゲ−エムベ−ハ− 塗工装置および塗工方法
DE102006036450A1 (de) * 2006-08-04 2008-02-07 Voith Patent Gmbh Auftragsvorrichtung
SG144053A1 (en) * 2006-12-19 2008-07-29 Hitachi Magnet Wire Corp Varnish coating device and method for coating a varnish
DE102008041419A1 (de) * 2008-08-21 2010-02-25 Voith Patent Gmbh Vorrichtung zur Erzeugung von beschichteten Papier-, Karton- oder anderen Faserstoffbahnen mit zumindest einer thermosensitiven Schicht und Verfahren zum Betreiben einer derartigen Vorrichtung
DE102008054916A1 (de) 2008-12-18 2010-07-01 Voith Patent Gmbh Vorhang-Auftragswerk
JP5338427B2 (ja) * 2009-03-30 2013-11-13 王子ホールディングス株式会社 カーテン塗工装置
DE102009029625A1 (de) 2009-09-21 2011-03-24 Voith Patent Gmbh Maschine zur Herstellung und/oder Behandlung einer Faserstoffbahn
JP2012170860A (ja) * 2011-02-18 2012-09-10 Nippon Paper Industries Co Ltd 塗工装置の結露防止装置及びこの結露防止装置を用いた塗工方法
TW201302318A (zh) * 2011-05-16 2013-01-16 Sumitomo Chemical Co 塗覆裝置
EP2551024B1 (fr) 2011-07-29 2017-03-22 3M Innovative Properties Co. Film multicouche doté d'au moins une couche mince et procédé continu de formation d'un tel film
CN103084290B (zh) * 2011-10-31 2015-10-28 细美事有限公司 喷嘴单元、基板处理装置和基板处理方法
EP2811069B1 (fr) 2012-11-22 2018-08-29 Valmet Technologies, Inc. Dispositif pour traiter un voile de fibres
EP2735595A1 (fr) 2012-11-23 2014-05-28 3M Innovative Properties Company Film adhésif multicouche sensible à la pression

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2082811A2 (fr) 2008-01-22 2009-07-29 Voith Patent GmbH Dispositif d'application à rideaux à couches multiples
EP2082811A3 (fr) * 2008-01-22 2012-05-30 Voith Patent GmbH Dispositif d'application à rideaux à couches multiples
WO2013171776A3 (fr) * 2012-05-18 2014-04-17 Claudio Selva Procédé et appareil d'apport de support pour le transfert d'un dessin univoque, et support ainsi obtenu
WO2018137932A1 (fr) * 2017-01-25 2018-08-02 Voith Patent Gmbh Mécanisme d'application à nappe et procédé d'application d'une substance à appliquer
US11407001B2 (en) 2017-01-25 2022-08-09 Voith Patent Gmbh Curtain applicator and method for applying an application medium

Also Published As

Publication number Publication date
DE20023956U1 (de) 2007-12-06
US20040166244A1 (en) 2004-08-26
US20020066404A1 (en) 2002-06-06
JP2002192047A (ja) 2002-07-10
JP3942874B2 (ja) 2007-07-11
DE50113656D1 (de) 2008-04-10
EP1208917A3 (fr) 2005-03-30
EP1208917B1 (fr) 2008-02-27
ATE387262T1 (de) 2008-03-15
DE10057729A1 (de) 2002-05-23

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