EP0855464A2 - Dispositif et méthode d'enduction directe ou indirecte d'une substance liquide ou pâteuse ssur une bande en mouvement - Google Patents

Dispositif et méthode d'enduction directe ou indirecte d'une substance liquide ou pâteuse ssur une bande en mouvement Download PDF

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Publication number
EP0855464A2
EP0855464A2 EP97119954A EP97119954A EP0855464A2 EP 0855464 A2 EP0855464 A2 EP 0855464A2 EP 97119954 A EP97119954 A EP 97119954A EP 97119954 A EP97119954 A EP 97119954A EP 0855464 A2 EP0855464 A2 EP 0855464A2
Authority
EP
European Patent Office
Prior art keywords
support roller
material web
facing
boundary layer
air boundary
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.)
Withdrawn
Application number
EP97119954A
Other languages
German (de)
English (en)
Other versions
EP0855464A3 (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 Sulzer Papiermaschinen 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 Sulzer Papiermaschinen GmbH, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0855464A2 publication Critical patent/EP0855464A2/fr
Publication of EP0855464A3 publication Critical patent/EP0855464A3/fr
Withdrawn legal-status Critical Current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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0283—Flat jet coaters, i.e. apparatus in which the liquid or other fluent material is projected from the outlet as a cohesive flat jet in direction 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
    • 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
    • D21H23/30—Pretreatment of the paper
    • 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
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper

Definitions

  • the invention relates to a device for direct or indirect application of a liquid or pasty medium on a running web of material, especially paper or Carton, according to the preamble of claim 1. Furthermore the invention relates to a method for direct or indirect application of a liquid or pasty medium on the same material web.
  • the liquid or pasty medium from an application device directly onto the Surface of the running web of material applied during the application on a rotating counter surface, for example an endless belt or a counter roller or Back-up roller is supported.
  • a support surface e.g. the surface of an as Applicator roll designed counter roll, applied to by there in a nip through which the material web runs through, from the applicator roller onto the material web to be transferred.
  • a generic device for the direct application of a liquid or pasty medium on a running Material web, especially paper or cardboard, is made of DE 42 05 313 A1 of the applicant is known.
  • This device includes a partially wrapped around the material web rotatable backup roller, which one facing the backup roller Side of the web supports, the Back-up roll surface and the material web unite wedge-shaped tapered gusset and one Form the outlet gusset.
  • the device further comprises an application unit opposite the back-up roller for Coating one side of the support roller facing away from the Material web with the medium as well as a related to the Direction of rotation of the backup roller arranged in front of the applicator Air boundary layer removal device for removing a air boundary layer carried by the material web.
  • the air boundary layer removal device is used for Avoidance of disturbing air influences in the inlet gusset between the material web and that applied to the material web Medium. In other words, an undesirable air intake be avoided on the side of the material web on which the Medium is applied, i.e. on the of the backup roller opposite side.
  • DE 42 05 313 A1 comparable device, but for indirect application of a liquid or pasty coating color on a running Material web, known from EP 0 556 675 A1, which also goes back to the applicant.
  • This device includes a Roller applicator with an applicator roller, which in one Coating sump or bath circulates, as well as one of the Applicator roller immediately opposite backup roller, the is partially wrapped in a material web. The Material web runs through the from the application roller and the Back-up roller formed nip in which the coating color is transferred to the material web.
  • an air boundary layer removal device arranged, as in DE 42 05 313 A1 serves to prevent undesired air entry on the Avoid side of the material web on which the Coating medium is applied.
  • the present invention is therefore based on the object a generic device with regard to the previously explained problems of the boundary layer-related Air pockets further improve and thus a To enable the achievable order quality to be increased.
  • Another task is to find a suitable method for direct or indirect application of a liquid or to create pasty medium on a running material web, the disadvantages inherent in the prior art as far as possible largely avoided.
  • the first-mentioned object is achieved by an inventive one Device with the features of claim 1.
  • This device for direct or indirect application of a liquid or pasty medium on a running Material web, in particular made of paper or cardboard, includes at least one partially wrapped around the material web rotatable backup roller, which one facing the backup roller Side of the web supports, the Back-up roll surface and the material web unite wedge-shaped tapered gusset and one Form the outlet gusset.
  • the device further comprises at least one application unit opposite the support roller for coating one side of the support roller facing away from the Material web with the medium and / or for further processing the coated material web side, and at least one based on the direction of rotation of the backup roller before Commissioned air boundary layer removal device to remove one from the backup roller and / or the air boundary layer carried along with the material web.
  • any suitable order work understand, for example nozzle applicators, Free jet nozzle applicators ("Jet Flow-F"), so-called SDTA applicators (Short Dwell-Time Applicators), LDTA commissioned works (Long Dwell-Time Applicators), commissioned works with order chamber, and the like.
  • the inventors of the present subject matter have recognized that the influence of the backing roll surface and the side of the material web facing the support roller entrained air boundary layer with regard to the underlying technical problem is of particular importance is to be measured.
  • the arrangement of the invention Air boundary layer removal device allows it simple way if necessary both that of the Back-up roller as well as from the side assigned to the back-up roller effective air boundary layer carried along the material web remove, derive or withhold before the Material web at the top of the inlet gusset on the Back-up roll surface is running.
  • the device according to the invention has proven itself even at high material web speeds proven very effective.
  • the air boundary layer removal device in the immediate vicinity of the top of the Inlet gusset is arranged. This will make the Back-up roll surface or that of the back-up roll facing side of the material web Air boundary layer removed just before the web of material at the top of the inlet gusset on the Back-up roll surface is running. In this way, the essentially no boundary layer-free surface area build a new boundary layer and the boundary layer-related one Entry of air pockets between the Back-up roll surface and the material web becomes effective avoided.
  • the Air boundary layer removal device at least one Suction device comprises at least one of the Back-up roll surface and / or the back-up roll facing Suction opening assigned to the side of the material web for suction that carried by the back-up roller and / or the material web Has air boundary layer. In this way, the undesirable entry of Air pockets between the backup roller surface and the the side of the material web facing the support roller effectively be avoided.
  • the air boundary layer removal device at least one at least one Blower device emitting gaseous medium, with at least one of the support roller surface and / or the Backing roller facing side of the material web assigned Outlet opening for the gaseous medium, which is the flow of the escaping gaseous medium essentially counter the direction of rotation of the backup roller on the backup roller surface and / or substantially against the direction of the Steers material web on the side facing the support roller, and so entry from the backing roll surface and / or the side of the support roller facing the Air boundary layer carried between the material web Backing roll surface and the side facing the backing roll the material web prevented.
  • Air is preferably used, as are dependent certain operating parameters of the device and certain effects to be achieved, however, also other gaseous media suitable.
  • the device according to the invention provides that the air boundary layer removal means at least one at least one blowing device which ejects gaseous medium comprises, with at least one outlet opening for the gaseous medium, and at least one of the Discharge element assigned to the outlet opening, which is the flow of the escaping gaseous medium essentially counter the direction of rotation of the backup roller on the backup roller surface and / or substantially against the direction of the Steers material web on the side facing the support roller, and so entry from the backing roll surface and / or the material web side facing the support roller entrained air boundary layer between the Backing roll surface and the side facing the backing roll the material web prevented.
  • Deflection plates or deflection channels arranged in the outlet opening conceivable, their position relative to the outlet opening and / or their geometry can also be done manually or automatically if required can be adjustable.
  • the air boundary layer removal device a scraper device, the at least one of the Back-up roll surface and / or the back-up roll facing Side of the material web assigned scraper element, that of the backing roll surface and / or that of Support roller facing side of the material web carried Air boundary layer removes or distracts.
  • Scraper element or its free scraper edge, in a distance smaller than the boundary layer thickness Back-up roll surface and / or the back-up roll facing Positioned side of the material web or, as with one preferred design feature of this embodiment, the Arrangement of the scraper element should be chosen so that this the backup roller surface and / or that of the backup roller facing side of the material web contacted.
  • the Scraper element thus strips off the air boundary layer and thus prevents the entry of Air pockets between the backup roller surface and the the side of the material web facing the support roller.
  • scraper elements can be essentially rigid or elastically deformable blades and the like Find application.
  • the scraper device can furthermore suitable positioning and / or positioning devices and Control and / or regulating devices for exact setting of the scraper element.
  • the device according to the invention at least one more Air boundary layer removal means included on the direction of rotation of the backup roller in front of the applicator arranged and the side facing away from the backup roller Material web is assigned and that of the opposite Removed air boundary layer carried along the material web side.
  • Air boundary layer removal device can it is basically a construction known per se act as you do in DE 42 05 mentioned above 313 A1 or EP 0 556 675 A1 of the applicant. This measure also makes it undesirable Avoid air intake on the side of the material on which the liquid or pasty medium is applied, i.e. on the side facing away from the backup roller. This is one Also increase the achievable order quality beneficial.
  • the method according to the invention becomes the air boundary layer preferably in the immediate vicinity of the tip of the Inlet gusset removed.
  • the air boundary layer through Vacuuming the side of the backup roller Material web and / or the support roller surface removed.
  • the Suction is advantageously carried out by means of a suitable suction device, such as continue above in connection with the device according to the invention was explained.
  • the method according to the invention becomes at least one gaseous medium on at least one of said, in Inlet gusset located point deflector blown, which is the flow of the exiting gaseous Medium essentially against the direction of rotation of the Back-up roller on the back-up roller surface and / or in essentially against the direction of travel of the material web whose side facing the backup roller steers. Even so can an entry of the of the backup roller surface and / or the carried the material roll side facing the support roller Air boundary layer between the support roller surface and the the side of the material web facing the support roller effectively be prevented.
  • a suitable deflection element and one with it Corresponding blowing device is shown on the above standing explanations of the device according to the invention referred.
  • FIG. 1 is a schematic cross-sectional representation a first preferred embodiment of an inventive Device for direct application of a liquid or pasty medium on a running material web 2, especially from paper or cardboard.
  • the device partially comprises one of the material web 2 wrapped rotatable support roller 4, which is one of the Backing roller 4 supports side 2.2 of the material web 2, the support roller surface and the material web 2 one wedge-shaped tapered gusset and one Form the outlet gusset.
  • the direction of rotation of the backup roller is in of the drawing indicated by an arrow.
  • the Device one of the support roller 4 opposite, only schematically indicated application work A for coating a side 2.4 of the material web 2 facing away from the support roller 4 the said medium. In the present case it is called Application unit A a so-called free jet nozzle unit used.
  • the air boundary layer removal device 6 is between the Backing roll surface and the backing roll 4 facing Page 2.2 of the material web 2 arranged in the inlet gusset and includes a very close to the top of the Inlet gusset positioned suction device 10 with both one of the backup roller surface and that of the backup roller 4 facing side 2.2 of the material web 2 assigned Suction opening 12 for suctioning off the support roller 4 and the air boundary layer 8 carried along with the material web 2. Due to the suction effect of the air boundary layer removal device 6, the air boundary layer 8 is removed even before the material web runs onto the support roller 4 and thus an entry of air pockets due to the boundary layer between the support roller surface and the material web 2 avoided. The removal of the air boundary layer 8 and that The medium is thus applied after a start-up phase Device at the same time but on different Material web sections.
  • FIG. 2 shows a schematic cross-sectional illustration a second preferred embodiment of the invention Device in the area of a coating unit.
  • the variant after Fig. 2 corresponds essentially to that of FIG. 1, instead the aforementioned suction device includes the Air boundary layer removal device 6 here, however a gaseous medium 18, hereinafter called air 18, ejecting blowing device 14 with at least one Outlet opening 16 for the air 18, and one in Inlet gusset arranged in front of the outlet opening 16 Cross section U-shaped deflecting element 20.
  • the device includes a Applicator A with one of the support roller 4 opposite and in one with the liquid or pasty application medium 22 filled bath 24 rotating applicator roller 26 that the Medium 22 picks up on its surface and then in one between the support roller 4 and the application roller 26 formed nip through which the material web 2nd runs through on the side facing away from the support roller 4 2.4 the material web 2 transmits.
  • the air boundary layer removal device 6 includes this embodiment, a scraper device with two each essentially over the entire machine width extending scraper elements which are hook-shaped in cross section 28, one of these scraper elements 28 being the surface the backup roller 4 and the other that of the backup roller 4 facing side 2.2 of the material web 2 contacted and thereby the of the backup roller surface and the Material boundary side 2.2 entrained air boundary layer 8 strips off.
  • the stripped boundary layer 8 is, as in the Drawing indicated by arrows, due to the hook-shaped Cross-sectional design of the scraper elements 28 deflected and in one of the directions of rotation of the support roller 4 or the running direction of the material web 2 at this point in the dissipated in essentially the opposite direction.
  • the device of Fig. 3 also has another Air boundary layer removal device 30 that referred on the direction of rotation of the support roller 4 in front of the application unit A arranged and the side facing away from the support roller 4 2.4 Material web 2 is assigned and by the Material web side 2.4, that is, the one to be coated Material web side, entrained air boundary layer 8 removed.
  • the air boundary layer removal device 30 is concerned in the present case is a construction as it is made of DE 42 05 313 A1 or EP 0 556 675 A1 of the applicant is known. However, the use of others is the same suitable constructions conceivable.
  • the invention is not limited to the above embodiments, which is only the general explanation of the basic idea serve the invention, limited. Rather, in the context of Scope of protection both the device according to the invention also the method according to the invention other than that above described design or embodiments accept.
  • the device and the method can be used here in particular have features that are a combination of the represent the respective individual characteristics of the claims.
  • the Device are basically instead of the backup roller other support devices (e.g. a rotating one Endless belt) can be used, provided their support surface or - surfaces wedge-like together with the material web forms or form tapered inlet gusset.
  • Air boundary layer removal devices explicitly described above 6 can also generally also others suitable for the intended purpose Air boundary layer removal devices are used.

Landscapes

  • Coating Apparatus (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP97119954A 1997-01-24 1997-11-14 Dispositif et méthode d'enduction directe ou indirecte d'une substance liquide ou pâteuse ssur une bande en mouvement Withdrawn EP0855464A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702605A DE19702605A1 (de) 1997-01-24 1997-01-24 Vorrichtung und Verfahren zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19702605 1997-01-24

Publications (2)

Publication Number Publication Date
EP0855464A2 true EP0855464A2 (fr) 1998-07-29
EP0855464A3 EP0855464A3 (fr) 1999-10-13

Family

ID=7818304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119954A Withdrawn EP0855464A3 (fr) 1997-01-24 1997-11-14 Dispositif et méthode d'enduction directe ou indirecte d'une substance liquide ou pâteuse ssur une bande en mouvement

Country Status (4)

Country Link
US (1) US6613386B1 (fr)
EP (1) EP0855464A3 (fr)
JP (1) JPH10216601A (fr)
DE (1) DE19702605A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1479823A1 (fr) * 2003-05-06 2004-11-24 Voith Paper Patent GmbH Dispositif d'application directe de produit fluide ou pateux sur un substrat défilant
DE102004062330A1 (de) * 2004-12-20 2006-06-22 Tlt-Turbo Gmbh Vorrichtung zum Absaugen einer wandnahen Luftgrenzschicht
WO2008015043A1 (fr) * 2006-08-04 2008-02-07 Voith Patent Gmbh Dispositif d'application
EP1475477A3 (fr) * 2003-05-06 2009-07-22 Voith Patent GmbH Dispositif pour appliquer directement une enduction fluide ou pâteuse sur une bande en mouvement

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6192597B1 (en) 1997-04-17 2001-02-27 Voith Sulzer Papiermaschinen Gmbh Device for treating a fibrous pulp web as well as a sealing device for a device of this kind
DE19817202A1 (de) * 1998-04-17 1999-10-21 Voith Sulzer Papiertech Patent Dichtungseinrichtung
DE10125376A1 (de) * 2000-03-14 2002-11-28 Voith Paper Patent Gmbh Auftragsvorrichtung
DE10245075A1 (de) * 2002-09-27 2004-04-01 Voith Paper Patent Gmbh Auftragswerk
JP2005296723A (ja) * 2004-04-07 2005-10-27 Mitsubishi Heavy Ind Ltd 塗工装置
DE102004037214A1 (de) * 2004-07-30 2006-03-23 Voith Paper Patent Gmbh Vorrichtung zum direkten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE102010041713A1 (de) * 2010-09-30 2012-04-05 Voith Patent Gmbh Vorrichtung zum direkten oder indirekten Auftrag von flüssigem bis pastösem Auftragsmedium und Verfahren zum Betreiben einer derartigen Vorrichtung
US11235598B2 (en) * 2019-03-01 2022-02-01 Ricoh Company, Ltd. Apparatus, inlet air unit and liquid discharging apparatus

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DE3148578A1 (de) * 1980-12-12 1982-09-02 Valmet Oy Verfahren und vorrichtung in der pressen- oder trockenpartie einer papiermaschine
US4369584A (en) * 1981-04-16 1983-01-25 W. R. Grace & Co. Preventing air film between web and roller
US4665631A (en) * 1985-05-13 1987-05-19 Thermo Electron Web Systems, Inc. Air sealing nozzle for high speed dryer
US4716660A (en) * 1986-04-03 1988-01-05 Hercules Incorporated Unifelt air suction system
DE3836751A1 (de) * 1987-11-30 1989-06-08 Voith Gmbh J M Luftleitkasten zum stabilisieren des laufes einer bahn, z.b. papierbahn
EP0556675A1 (fr) * 1992-02-21 1993-08-25 J.M. Voith GmbH Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier
DE4205313A1 (de) * 1992-02-21 1993-08-26 Voith Gmbh J M Duesenauftragswerk zum auftragen von streichfarbe auf eine papierbahn
US5291666A (en) * 1993-04-23 1994-03-08 International Paper Company Apparatus for drying roll material
DE4415581A1 (de) * 1994-05-04 1995-01-05 Voith Gmbh J M Papier-Streichvorrichtung
US5506005A (en) * 1993-01-13 1996-04-09 Valmet Corporation Method and assembly for preventing air entry between a moving material web and a roll

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DE3214396C2 (de) * 1982-04-20 1985-09-26 Kleinewefers Gmbh, 4150 Krefeld Vorrichtung zum Aufwickeln einer Bahn, wie Papierbahn
DE3220074A1 (de) * 1982-05-28 1983-12-01 J.M. Voith Gmbh, 7920 Heidenheim Trockenpartie einer papiermaschine
AT382175B (de) * 1984-10-30 1987-01-26 Andritz Ag Maschf Vorrichtung zum trocknen von materialbahnen, insbesondere papierbahnen
DE3446757C2 (de) * 1984-11-17 1995-05-24 Voith Gmbh J M Streicheinrichtung
AT394668B (de) 1984-11-17 1992-05-25 Voith Gmbh J M Einrichtung zum beschichten laufender warenbahnen mit einer streichmasse
DE3706541A1 (de) * 1987-02-28 1988-09-08 Voith Gmbh J M Vorrichtung zum stabilisieren des laufes einer warenbahn, insbesondere zum stabilisieren einer papierbahn in der trockenpartie einer papiermaschine
DE3706542A1 (de) * 1987-02-28 1988-09-08 Voith Gmbh J M Luftleitkasten fuer die trockenpartie einer schnellaufenden papiermaschine
DE3739338C2 (de) 1987-11-20 1995-09-07 Voith Gmbh J M Luftleitkasten zum Stabilisieren des Laufs einer Warenbahn, insbesondere einer Papierbahn
EP0556551B1 (fr) * 1992-02-21 1996-10-23 J.M. Voith GmbH Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148578A1 (de) * 1980-12-12 1982-09-02 Valmet Oy Verfahren und vorrichtung in der pressen- oder trockenpartie einer papiermaschine
US4369584A (en) * 1981-04-16 1983-01-25 W. R. Grace & Co. Preventing air film between web and roller
US4665631A (en) * 1985-05-13 1987-05-19 Thermo Electron Web Systems, Inc. Air sealing nozzle for high speed dryer
US4716660A (en) * 1986-04-03 1988-01-05 Hercules Incorporated Unifelt air suction system
DE3836751A1 (de) * 1987-11-30 1989-06-08 Voith Gmbh J M Luftleitkasten zum stabilisieren des laufes einer bahn, z.b. papierbahn
EP0556675A1 (fr) * 1992-02-21 1993-08-25 J.M. Voith GmbH Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier
DE4205313A1 (de) * 1992-02-21 1993-08-26 Voith Gmbh J M Duesenauftragswerk zum auftragen von streichfarbe auf eine papierbahn
US5506005A (en) * 1993-01-13 1996-04-09 Valmet Corporation Method and assembly for preventing air entry between a moving material web and a roll
US5291666A (en) * 1993-04-23 1994-03-08 International Paper Company Apparatus for drying roll material
DE4415581A1 (de) * 1994-05-04 1995-01-05 Voith Gmbh J M Papier-Streichvorrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1479823A1 (fr) * 2003-05-06 2004-11-24 Voith Paper Patent GmbH Dispositif d'application directe de produit fluide ou pateux sur un substrat défilant
EP1475477A3 (fr) * 2003-05-06 2009-07-22 Voith Patent GmbH Dispositif pour appliquer directement une enduction fluide ou pâteuse sur une bande en mouvement
DE102004062330A1 (de) * 2004-12-20 2006-06-22 Tlt-Turbo Gmbh Vorrichtung zum Absaugen einer wandnahen Luftgrenzschicht
WO2008015043A1 (fr) * 2006-08-04 2008-02-07 Voith Patent Gmbh Dispositif d'application

Also Published As

Publication number Publication date
US6613386B1 (en) 2003-09-02
EP0855464A3 (fr) 1999-10-13
DE19702605A1 (de) 1998-07-30
JPH10216601A (ja) 1998-08-18

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