EP0969147A2 - Dispositif et procédé d'application de materiau fluide ou pâteux sur une bande en movement - Google Patents

Dispositif et procédé d'application de materiau fluide ou pâteux sur une bande en movement Download PDF

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Publication number
EP0969147A2
EP0969147A2 EP99108451A EP99108451A EP0969147A2 EP 0969147 A2 EP0969147 A2 EP 0969147A2 EP 99108451 A EP99108451 A EP 99108451A EP 99108451 A EP99108451 A EP 99108451A EP 0969147 A2 EP0969147 A2 EP 0969147A2
Authority
EP
European Patent Office
Prior art keywords
substrate
application
veil
material web
running
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
EP99108451A
Other languages
German (de)
English (en)
Other versions
EP0969147B1 (fr
EP0969147A3 (fr
Inventor
Martin Dr. Kustermann
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
Voith Sulzer Papiertechnik 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, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0969147A2 publication Critical patent/EP0969147A2/fr
Publication of EP0969147A3 publication Critical patent/EP0969147A3/fr
Application granted granted Critical
Publication of EP0969147B1 publication Critical patent/EP0969147B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/04—Curtain coater

Definitions

  • the invention relates to a device for applying a liquid or pasty application medium on a running surface using a veil application, which the application medium in the form of a veil or curtain to the underground, the current
  • a veil application which the application medium in the form of a veil or curtain to the underground
  • the current When applying directly, the surface of a material web, especially made of paper or cardboard, and in the case of an indirect order Surface of a transfer element, which is then the application medium transfers to the material web, and wherein a suction device for Vacuuming from the surface and / or from the veil Air is provided.
  • German utility model 297 11 713 therefore proposed in the running direction of the surface in front of the line of impact of the application medium to provide a blowing nozzle on the surface, which one of the Direction of travel of the surface ejects the opposite air jet.
  • This Air jet "cuts" into the air boundary layer and thus lifts it off Underground.
  • the order medium curtain is covered by the generated due to the interaction of air boundary layer and blown air Turbulence affected.
  • the order medium therefore had to be high Excess to be applied to the current underground to be able to provide a sufficiently stable application medium curtain.
  • EP 0 517 223 B1 describes a method for treating the application medium known, according to which to achieve a high quality Order result Air bubbles removed from the order medium become.
  • an application device Specify the type mentioned at the beginning, in which the quantity in circulation Application medium, the diameter of the return lines and the performance of the feed pumps for the application medium are reduced.
  • an application device solved type mentioned which a dynamic pressure determination device to determine the pressure in the direction of travel of the substrate in front of the line of impact of the veil on the underground Air, and a control device for controlling the suction power of the suction device depending on the of the dynamic pressure determination device certain dynamic pressure includes.
  • the pressure in the application area can be independent of the running speed of the surface, the falling speed of the application medium and the like parameters always to achieve a high-quality order result set favorable value be by the suction power of the suction device depending on the Determination result of the dynamic pressure determination device controlled becomes.
  • the cheapest is in the direction of the surface of the impact line of the veil directly by means of to detect at least one pressure sensor.
  • the suction device must be arranged in front of the impact area, and to others the function of the at least one pressure sensor by application medium splashes the dynamic pressure can also be affected can be determined indirectly or indirectly.
  • a Speed sensor for detecting the running speed of the surface be provided. This is possible because of the before Impact line prevailing back pressure mainly from that of the underground entrained air boundary layer and partly also from that of the application medium curtain entrained air boundary layer, the falling speed of the application medium curtain usually at the running speed of the subsurface is in a certain ratio in order when hitting the subsurface the formation of spray medium to prevent. It should be noted that the possibility of an indirect Determination of the dynamic pressure also in addition to the direct dynamic pressure determination can be used.
  • the application medium a solids content of between about 5% and about 80%, preferably between about 30% and about 75%. Further the application medium can be at least one inorganic or organic Pigment and at least one synthetic or natural binder contain.
  • the application device it is not only possible to to reduce the amount of media in circulation and thus the performance lower the feed pumps.
  • the width the material web to be coated is more than 2.5 m, preferably more than 4.0 m.
  • At least one in the running direction of the ground before the line of impact Squeegee arranged to wipe off the air carried along by the surface is.
  • this scraper strip By means of this scraper strip, the air boundary layer carried along can lifted from the ground and deflected towards the suction device become. Since the suction device is no longer the one for lifting the Air boundary layer must have the necessary suction power, it can accordingly be less trained. However, such represents Squeegee is a wearing part, which is replaced from time to time must become.
  • a device for stabilization can also be used for direct application the run of the material web may be provided, for example another Suction device, which on the facing away from the veil application Side of the material web creates a negative pressure that the material web against a support element, preferably a support roller.
  • the invention relates to a method for Apply a liquid or pasty application medium to a running one Substrate using a veil application.
  • the invention is based on an embodiment based on the attached drawing will be explained in which the only figure is a schematic side view of an application device according to the invention represents.
  • an application device is complete generally designated 10.
  • a material web moving in the running direction L. 12 is in the area of the application device 10 around a support roller 14 led around, which is rotated about an axis A in the direction of arrow P. is.
  • a veil application unit 16 is provided whose distribution channel 16a liquid or pasty application medium 18 through an exit gap 16b emerges and as an application medium veil or Curtain 20 in free fall to surface 12a of material web 12 emotional.
  • the application layer 22 thus formed can, for example, by means of one not shown, but known in the prior art Dosing or leveling device for excess application medium freed and / or smoothed.
  • the application medium 18 at the entrance gap 16b over the entire length of the distribution channel 16a With essentially the same There is pressure.
  • the application medium becomes the distribution channel 16a usually at one end via a feed line, not shown supplied with a large excess, and is not through the outlet gap delivered order medium 18 at the other end of the Distribution channel 16a re-routed via a discharge line and into one Order medium supply returned.
  • that of the dosing or / and leveling device removed application medium collected and supplied to the order medium supply for reuse become.
  • the passage cross section of its Feeder decreases to his laxative.
  • the training according to the invention the application device 10 offers a further possibility for Reduction of the circulation quantity of the order medium.
  • a suction device 24 is arranged, which in the transverse direction Q in extends essentially over the entire width of the material web 12.
  • the Suction device 24 is used to extract air, which from the material web 12 when moving in the direction L on its surface 12a as Air boundary layer 26 and / or from the application medium curtain 20 at its Surface as air boundary layer 28 in area B in front of the point of impact T of the application medium 18 transported into the material web surface 20 and there to train one over the normal Air pressure leads to increased dynamic pressure.
  • At least one pressure sensor 30 is also provided, which recorded the value of the dynamic pressure and a corresponding signal a signal line 30a is transmitted to a control unit 32. Furthermore, the Axis A of the support roller 14 is a speed or speed sensor 34 arranged, the detection signal via a signal line 34a also is supplied to the control unit 32.
  • the pressure sensor 30 is used for direct or immediate detection of the dynamic pressure prevailing in area B. In contrast, the dynamic pressure in area B can be determined from the speed or. Speed signal of the sensor 34 only indirectly or indirectly determine.
  • the control unit 32 Determined from the signals supplied to it via lines 30a and 34a the control unit 32 the value of the dynamic pressure prevailing in area B, compares this actual value of the dynamic pressure with a predetermined, desired one Target value of the dynamic pressure, for example in a data memory the control unit 32 can be stored as a data field if the actual value of the dynamic pressure deviates from the target value of the dynamic pressure, whether the suction power of the suction device 24 increases or decreases must be, and gives a corresponding over a signal line 32a Control signal to the suction device 24.
  • a plurality of pressure sensors 30 are provided can, which are arranged distributed over the width of the material web 12 and in a section assigned to them the one that prevails there Record dynamic pressure.
  • the control unit 32 can have a spatially resolved one Information about the dynamic pressure can be supplied. The control unit 32 This information can be resolved in different ways process further.
  • the control signal for the Suction device 24 it is possible to determine the control signal for the Suction device 24 as the mean of this spatially resolved information Actual value of the dynamic pressure to be used. However, it is also possible that Suction power 24 depending on the respective maximum value of the spatially resolved Control information. If the suction device 24 in a plurality of sections is divided, the suction power is independent can be controlled from each other, the spatially resolved information finally also used for a spatially resolved control of the suction power become.
  • Scraper strip 36 is provided, which is either at a very short distance the material web surface 12a is arranged, or against this, for example is employed in the manner of a stabbing blade. This bar 36 grazes the Air carried in the boundary layer 26 from the surface of the material web and redirects them to the suction opening of the suction device 24. Because the majority the air supplied in the boundary layer 26 is thus mechanically separated from the Surface 12a is lifted off, the suction device 24 can accordingly be low-performing.
  • a further suction device 38 has the task in the inlet gusset Z maintain a negative pressure that the material web 12th pulls against the surface 14a of the support roller 14 so that it is in the application area B is in full contact with this. So the other one also bears Suction device 38 for achieving a high quality order result at.
  • the application device 10 designed according to the invention allows the to reduce the circulating amount of application medium 18 without losses To accept order quality.
  • the lower circulation quantity can also the cable cross-sections of the supply and discharge lines the distribution chamber 16a of the veil application unit 16 and the return line (if available) from the leveling and / or dosing device be made smaller. If necessary, can even completely on a drain line to be dispensed with.
  • the operating costs can also be reduced by one Minimization of wear parts and the use of less powerful and less throughput Pumps are lowered.
  • the with the invention Application device 10 coated material webs are characterized by a high uniformity of the coating and good coverage of the Material web surface with application medium, the almost airbrush quality reached.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Treatment Of Fiber Materials (AREA)
EP99108451A 1998-07-01 1999-04-30 Dispositif et procédé d'application de materiau fluide ou pâteux sur une bande en movement Expired - Lifetime EP0969147B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829449A DE19829449A1 (de) 1998-07-01 1998-07-01 Auftragsvorrichtung und Auftragsverfahren
DE19829449 1998-07-01

Publications (3)

Publication Number Publication Date
EP0969147A2 true EP0969147A2 (fr) 2000-01-05
EP0969147A3 EP0969147A3 (fr) 2000-07-12
EP0969147B1 EP0969147B1 (fr) 2004-10-06

Family

ID=7872672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108451A Expired - Lifetime EP0969147B1 (fr) 1998-07-01 1999-04-30 Dispositif et procédé d'application de materiau fluide ou pâteux sur une bande en movement

Country Status (6)

Country Link
US (1) US6146690A (fr)
EP (1) EP0969147B1 (fr)
JP (1) JP4495273B2 (fr)
AT (1) ATE278839T1 (fr)
CA (1) CA2276162A1 (fr)
DE (2) DE19829449A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1516959A1 (fr) * 2003-09-17 2005-03-23 Voith Paper Patent GmbH Procédé pour appliquer un revêtement à teneur élevée en solides sur une bande de matériau
US7425246B2 (en) * 2001-04-14 2008-09-16 Dow Global Technologies Inc. Process for making multilayer coated paper or paperboard
US7473333B2 (en) * 2002-04-12 2009-01-06 Dow Global Technologies Inc. Process for making coated paper or paperboard
EP2156898A1 (fr) * 2004-09-09 2010-02-24 Avery Dennison Corporation Dispositif de revêtement de rideau
DE102011002671A1 (de) * 2011-01-13 2012-07-19 Metso Paper, Inc. Leimmittelzuführsystem zum Zuführen von Leimmittel zu einer Papier- oder Kartonbahn
DE102011002670A1 (de) * 2011-01-13 2012-07-19 Metso Paper, Inc. Leimmittelzufuhrsystem zum Zuführen von Leimmittel zu einer Papier- oder Kartonbahn

Families Citing this family (35)

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Publication number Priority date Publication date Assignee Title
FI115295B (fi) * 1999-09-01 2005-04-15 Metso Paper Inc Verhopäällystin ja verhopäällystysmenetelmä
DE10125376A1 (de) * 2000-03-14 2002-11-28 Voith Paper Patent Gmbh Auftragsvorrichtung
DE10012257A1 (de) * 2000-03-14 2001-09-20 Voith Paper Patent Gmbh Auftragsvorrichtung
DE10012347A1 (de) * 2000-03-14 2001-09-20 Voith Paper Patent Gmbh Vorhang- Auftragsvorrichtung
DE10012256A1 (de) * 2000-03-14 2001-09-20 Voith Paper Patent Gmbh Auftragsvorrichtung
DE10032430A1 (de) * 2000-07-04 2002-01-17 Voith Paper Patent Gmbh Auftragsvorrichtung
US6669993B2 (en) * 2000-09-19 2003-12-30 Honeywell International Inc. High speed yarn finish application
DE10057731A1 (de) * 2000-11-22 2002-06-06 Voith Paper Patent Gmbh Vorhang-Auftragsvorrichtung
JP3848168B2 (ja) 2001-03-29 2006-11-22 三菱製紙株式会社 カーテン塗布装置
DE10117667A1 (de) * 2001-04-09 2002-10-10 Bachofen & Meier Ag Buelach Vorrichtung zum Absaugen einer Luftgrenzschicht von einer laufenden Materialbahn
ATE463620T1 (de) 2001-05-23 2010-04-15 Voith Patent Gmbh Auftragsvorrichtung
AU2002357208A1 (en) * 2001-12-13 2003-07-09 Dow Global Technologies Inc. Method and apparatus for curtain coating
US7364774B2 (en) 2002-04-12 2008-04-29 Dow Global Technologies Inc. Method of producing a multilayer coated substrate having improved barrier properties
DE20221952U1 (de) † 2002-06-24 2009-08-20 Voith Patent Gmbh Vorrichtung zum beidseitigen Streichen und zum Trocknen einer Materialbahn, insbesondere aus Papier oder Karton
DE10232949A1 (de) * 2002-07-19 2004-01-29 Voith Paper Patent Gmbh Vorhang-Auftragsvorrichtung
US20040055534A1 (en) * 2002-09-19 2004-03-25 Gaston Systems, Inc. Fluid applicator for permeable substrates
DE10245075A1 (de) * 2002-09-27 2004-04-01 Voith Paper Patent Gmbh Auftragswerk
DE10245072A1 (de) * 2002-09-27 2004-04-08 Voith Paper Patent Gmbh Auftragswerk
US20040121080A1 (en) * 2002-10-17 2004-06-24 Robert Urscheler Method of producing a coated substrate
DE10319992A1 (de) * 2003-05-06 2004-11-25 Voith Paper Patent Gmbh Vorrichtung zum direkten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
FI115407B (fi) * 2003-06-26 2005-04-29 Metso Paper Inc Paperi-/kartonkikoneen verhopäällystinyksikkö
US7386754B2 (en) * 2003-10-16 2008-06-10 Seagate Technology Llc Method and apparatus to improve magnetic disc drive reliability using excess un-utilized capacity
DE10358754B4 (de) * 2003-12-12 2011-07-14 M-Real Oyj Bahnfördervorrichtung
DE10358508A1 (de) * 2003-12-13 2005-07-07 Voith Paper Patent Gmbh Auftragsvorrichtung
DE102004056271A1 (de) * 2004-11-22 2006-05-24 Basf Ag Anordnung und Verfahren zur Vorhangbeschichtung bewegter Substrate
FI120982B (fi) * 2005-02-25 2010-05-31 Metso Paper Inc Verhopäällystysmenetelmä ja sitä soveltava laite
KR101244674B1 (ko) * 2006-05-02 2013-03-25 다우 코닝 아일랜드 리미티드 웹 밀봉 장치
WO2007128947A1 (fr) * 2006-05-02 2007-11-15 Dow Corning Ireland Limited Système de remplacement de fluides
JP4802068B2 (ja) * 2006-09-04 2011-10-26 株式会社ヒラノテクシード 塗工装置
US8789492B2 (en) * 2008-07-15 2014-07-29 Awi Licensing Company Coating apparatus and method
JP2010063972A (ja) * 2008-09-09 2010-03-25 Jfe Steel Corp 塗布装置及び塗布方法
WO2010041520A1 (fr) * 2008-10-10 2010-04-15 コニカミノルタオプト株式会社 Film de revêtement dur, son procédé de production et film antireflet le comprenant
US20100225721A1 (en) * 2009-03-05 2010-09-09 Abc Advertising Agency, Inc. Table having indicia on surface
US8590479B2 (en) 2011-07-25 2013-11-26 Transform Pack Inc. Preserving seasoning flavour profiles during the manufacturing of food-seasoning sheets
US8668960B1 (en) * 2013-02-08 2014-03-11 Enki Technology, Inc. Flow coating apparatus and method of coating

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DE3338095A1 (de) * 1983-10-20 1985-05-09 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung
DE3424884C1 (de) * 1984-07-06 1986-02-20 Du Pont de Nemours (Deutschland) GmbH, 4000 Düsseldorf Vorrichtung zum Auftragen mindestens einer Giessschicht und Verfahren zum Betrieb dieser Vorrichtung
EP0489978B1 (fr) * 1990-12-12 1996-03-20 Agfa-Gevaert N.V. Enduiseuse à rideau
JP2841923B2 (ja) * 1991-06-07 1998-12-24 日本製紙株式会社 印刷用塗工紙の製造方法
US5206057A (en) * 1992-01-10 1993-04-27 Eastman Kodak Company Method and apparatus for adjusting the curtain impingement line in a curtain coating apparatus
EP0704752B1 (fr) * 1994-09-27 2001-05-30 ILFORD Imaging Switzerland GmbH Procédé et appareil pour le revêtement par rideau d'un support en mouvement.
FI100585B (fi) * 1996-07-04 1998-01-15 Valmet Corp Menetelmä ja sovitelma päällysteen levittämiseksi liikkuvan paperi- ta i kartonkiradan pinnalle
DE19631480A1 (de) * 1996-08-03 1998-02-05 Du Pont Deutschland Verfahren und Vorrichtung zum Herstellen eines photographischen Materials
US5763013A (en) * 1997-02-05 1998-06-09 Eastman Kodak Company Edge removal apparatus including air-flow blocking means for curtain coating

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7425246B2 (en) * 2001-04-14 2008-09-16 Dow Global Technologies Inc. Process for making multilayer coated paper or paperboard
US7909962B2 (en) 2001-04-14 2011-03-22 Dow Global Technologies Llc Process for making multilayer coated paper or paperboard
US7473333B2 (en) * 2002-04-12 2009-01-06 Dow Global Technologies Inc. Process for making coated paper or paperboard
EP1516959A1 (fr) * 2003-09-17 2005-03-23 Voith Paper Patent GmbH Procédé pour appliquer un revêtement à teneur élevée en solides sur une bande de matériau
EP2156898A1 (fr) * 2004-09-09 2010-02-24 Avery Dennison Corporation Dispositif de revêtement de rideau
DE102011002671A1 (de) * 2011-01-13 2012-07-19 Metso Paper, Inc. Leimmittelzuführsystem zum Zuführen von Leimmittel zu einer Papier- oder Kartonbahn
DE102011002670A1 (de) * 2011-01-13 2012-07-19 Metso Paper, Inc. Leimmittelzufuhrsystem zum Zuführen von Leimmittel zu einer Papier- oder Kartonbahn
EP2481850B1 (fr) 2011-01-13 2018-02-07 Valmet Technologies, Inc. Système d'introduction de moyen de collage pour l'introduction de moyen de collage dans une bande de papier ou de carton

Also Published As

Publication number Publication date
DE19829449A1 (de) 2000-01-05
CA2276162A1 (fr) 2000-01-01
DE59910696D1 (de) 2004-11-11
US6146690A (en) 2000-11-14
EP0969147B1 (fr) 2004-10-06
JP4495273B2 (ja) 2010-06-30
EP0969147A3 (fr) 2000-07-12
JP2000033316A (ja) 2000-02-02
ATE278839T1 (de) 2004-10-15

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