EP0556551A1 - Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier - Google Patents

Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier Download PDF

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Publication number
EP0556551A1
EP0556551A1 EP93100309A EP93100309A EP0556551A1 EP 0556551 A1 EP0556551 A1 EP 0556551A1 EP 93100309 A EP93100309 A EP 93100309A EP 93100309 A EP93100309 A EP 93100309A EP 0556551 A1 EP0556551 A1 EP 0556551A1
Authority
EP
European Patent Office
Prior art keywords
doctor blade
excess
paper web
roller
application
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
EP93100309A
Other languages
German (de)
English (en)
Other versions
EP0556551B1 (fr
Inventor
Rudolf Beisswanger
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.)
JM Voith GmbH
Original Assignee
JM Voith 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 JM Voith GmbH filed Critical JM Voith GmbH
Publication of EP0556551A1 publication Critical patent/EP0556551A1/fr
Application granted granted Critical
Publication of EP0556551B1 publication Critical patent/EP0556551B1/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
    • D21H23/32—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
    • D21H23/40—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 only one side of the paper being in contact with the material
    • 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
    • D21H23/34—Knife or blade type coaters

Definitions

  • the invention relates to an application unit for applying coating color to a paper web, according to the preamble of claim 1, in particular roller application unit.
  • doctor blades have to fulfill crucial functions. It should help to create a closed, and relatively thick layer that is completely smooth and free of squeegee strips.
  • Different types of doctor blades are conceivable, for example with a stiff blade, with a bent blade that tangentially clings to the coated paper web in its free end region and the roller doctor blade. The apperative effort for such doctor devices is very considerable. Nevertheless, the previously known doctor blade devices have not met the required requirements for the line quality.
  • the invention has for its object to design a commissioned work according to the preamble of claim 1 such that the line quality is further improved, in particular with regard to smoothness, closedness of the line surface and with regard to the sensitive metering of the line weight, with a reasonable apperative effort.
  • the roller applicator shown in Figure 1 comprises an applicator roller 1, which rotates in a coating sump 2.
  • the coating sump 2 is located in a trough 3.
  • the trough 3 has a brush-colored inlet 7.
  • the trough wall is designed as a guide wall 8. It ends with an overflow edge 9 ("first overflow edge"). At this point, an overflow channel 10 is connected for a first overflow stream.
  • a guide body 20 adjoins the guide wall 8 after the overflow edge 9. This extends to the inlet gusset. It forms a flow channel 21 with the outer surface of the application roller 1. At its downstream end, it forms a second overflow edge 22 for a second overflow stream.
  • the guide body 20 has a discharge channel 23. This is used to derive a second overflow current. This current arises from the fact that excess coating color passes over the overflow edge 22 and - through the discharge channel 23 - flows in the flow channel 21 counter to the direction of flow.
  • the guide body 20 also has a throttle point 24, which can serve as an overflow edge and then forms the third overflow edge. It also carries an air scraper 25.
  • the flow channel 23 is provided with a valve 26 at its downstream end.
  • the three overflow streams which overflow at the overflow edges 9, 22 and 24, all open into a single collecting channel, namely the overflow channel 10.
  • the coated paper web 5 After passing through the application zone, the coated paper web 5 reaches the outlet gusset. There it runs past a leveling rod 30 and finally a doctor blade 31. This area is of primary importance for the present invention.
  • the leveling rod 30 is part of a deflector 40.
  • This deflector has a first guide surface 41 for deriving a first excess of coating color 42 from the outlet gusset, and also a second guide surface 43 for the excess doctor blade 46 which is produced on the doctor blade 31.
  • the two guide surfaces 41, 43 are brought together in an end edge 44, which tapers to a point in the present case and at which the two excess flows 42, 46 meet.
  • the first guide surface 41 is rigidly concave, the second guide surface 43 is somewhat less strong.
  • the deflector 40 is fastened to the fixed environment by means of brackets 45.
  • the brackets 45 consist of relatively thin plates, which - distributed over the width of the machine - are arranged side by side, leaving gaps.
  • the leveling rod 30 can be adjusted more or less strongly against the coated paper web 5 by means of an inflatable rubber tube 47.
  • the deflector 40 is suspended from a joint 48 so that it can pivot in the direction of the arrow 49. It can be locked in various angular positions.
  • FIG. 2 shows a roller applicator according to the prior art.
  • the basic elements are also present here, namely the application roller 1, the counter roller 4, the trough 3, etc.
  • the deflector designed according to the invention is missing.
  • the two doctor blades ie the pre-doctor blade 30 as well as the last doctor blade 31, can be designed in different ways. For example, they can be designed as a blade, as a doctor blade, or as a smooth rod.
  • the deflector 40 in the embodiment according to the invention can have a body 51 which has the shape of a wing in cross section. In its end region 52 it runs essentially tangentially to the paper web 5. With this end region it can nestle against the paper web 5 in order to achieve a further smoothing of the coating color application.
  • the roller applicator shown in FIG. 3 again comprises the classic elements, namely an applicator roller 1 and a counter roller 4.
  • the inlet area with the inlet guide body is not shown here. However, these or similar elements are of course present in practice.
  • the design of the deflector device is again important for the invention.
  • the two deflectors each have a guide surface 41.1 or 41.2.
  • the second deflector 40.2 has a second guide surface 43.
  • This guide surface is used to discharge the excess doctor blade which is produced on the doctor blade 60.
  • a collecting channel 61 can also be seen here.
  • a pivotable guide plate is suspended from a joint 63. In the position shown it directs the excess doctor back into the trough 3. In the position shown in broken lines, on the other hand, it would guide the excess doctor blade into the collecting channel 61.
  • the first deflector 40.1 has openings 64 through which the doctor blade excess can get into the trough in the first case
  • a pre-metering doctor 70 is provided instead of the second deflector 40.2. This is provided with a pressure air hose 71, and also with a return plate 72, which is curved in a similar manner to the first deflector 40.1.
  • the roller applicator according to FIG. 5 shows a variant of the deflector device.
EP93100309A 1992-02-21 1993-01-12 Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier Expired - Lifetime EP0556551B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4205314 1992-02-21
DE4205314 1992-02-21

Publications (2)

Publication Number Publication Date
EP0556551A1 true EP0556551A1 (fr) 1993-08-25
EP0556551B1 EP0556551B1 (fr) 1996-10-23

Family

ID=6452270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100309A Expired - Lifetime EP0556551B1 (fr) 1992-02-21 1993-01-12 Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier

Country Status (7)

Country Link
US (1) US5474608A (fr)
EP (1) EP0556551B1 (fr)
JP (1) JPH067729A (fr)
AT (1) ATE144567T1 (fr)
CA (1) CA2089919A1 (fr)
DE (1) DE59304229D1 (fr)
FI (1) FI930757A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0783053A1 (fr) * 1996-01-02 1997-07-09 Voith Sulzer Papiermaschinen GmbH Dispositif d'enduction pour déposer directement ou indirectement un matériau fluide ou pâteux sur une bande en mouvement

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955770A (en) * 1988-08-31 1990-09-11 Kitamura Machinery Co., Ltd. Bed for a machine tool
DE19702605A1 (de) * 1997-01-24 1998-07-30 Voith Sulzer Papiermasch Gmbh Vorrichtung und Verfahren zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE10131982A1 (de) * 2001-07-02 2003-01-16 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Entgasen von Suspension, insbesondere Faserstoffsuspension
US6582769B2 (en) 2001-11-28 2003-06-24 Meadwestvaco Corporation Method for conditioning a metering blade
US7340489B2 (en) * 2002-04-10 2008-03-04 Emc Corporation Virtual storage devices
WO2006088645A1 (fr) 2005-02-16 2006-08-24 Dow Corning Corporation Film de résine en silicone renforcé et son procédé de préparation
US8092910B2 (en) 2005-02-16 2012-01-10 Dow Corning Toray Co., Ltd. Reinforced silicone resin film and method of preparing same
WO2007018756A1 (fr) 2005-08-04 2007-02-15 Dow Corning Corporation Film de résine silicone renforcée et son procédé de préparation
ATE517947T1 (de) 2005-12-21 2011-08-15 Dow Corning Silikonharzfilm, herstellungsverfahren dafür und nanomaterialgefüllte silikonzusammensetzung
EP1973964B1 (fr) 2006-01-19 2011-07-06 Dow Corning Corporation Film de résine de silicone, son procédé de préparation, et composition de silicone chargée d'un nanomatériau
ATE516331T1 (de) * 2006-02-02 2011-07-15 Dow Corning Silikonharzfilm, herstellungsverfahren dafür und mit nanomaterial gefüllte silikonzusammensetzung
US8084097B2 (en) * 2006-02-20 2011-12-27 Dow Corning Corporation Silicone resin film, method of preparing same, and nanomaterial-filled silicone composition
EP2117836B1 (fr) 2007-02-22 2012-11-07 Dow Corning Corporation Films de résine de silicone renforcés
CN101627096B (zh) * 2007-02-22 2012-11-07 道康宁公司 增强硅树脂膜及其制备方法
EP2117835A1 (fr) 2007-02-22 2009-11-18 Dow Corning Corporation Films de résine de silicone renforcés
KR20100017500A (ko) * 2007-05-01 2010-02-16 다우 코닝 코포레이션 나노물질-충전된 실리콘 조성물 및 강화 실리콘 수지 필름
CN103966904B (zh) * 2014-05-21 2016-08-24 吉翔宝（太仓）离型材料科技发展有限公司 一种组合刮刀涂布头结构
KR101992935B1 (ko) * 2017-09-18 2019-06-25 엠에스웨이 주식회사 웨이브 방식 코팅 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452833A (en) * 1982-02-08 1984-06-05 Consolidated Papers, Inc. Paper coating method
DE3446525A1 (de) * 1984-01-07 1985-08-01 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum beschichten von ueber eine stuetzwalze laufenden materialbahnen mit regelbarer auftragsstaerke
GB2178677A (en) * 1985-07-31 1987-02-18 Jagenberg Ag Coating webs
EP0423492A2 (fr) * 1989-10-14 1991-04-24 J.M. Voith GmbH Installation pour doser le couchage des bandes de papier ou de carton

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195500A (en) * 1962-08-29 1965-07-20 Kimberly Clark Co Abrasive work back-up to recondition doctor blade
US4310573A (en) * 1980-07-31 1982-01-12 Consolidated Papers, Inc. Method and apparatus for supplying coating to a coater
DE3605409C3 (de) * 1986-02-20 1996-07-04 Voith Gmbh J M Einrichtung zur Beschichtung laufender Warenbahnen
DE3916620A1 (de) * 1989-05-22 1990-12-06 Jagenberg Ag Vorrichtung zum beschichten einer um eine gegenwalze gefuehrten materialbahn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452833A (en) * 1982-02-08 1984-06-05 Consolidated Papers, Inc. Paper coating method
DE3446525A1 (de) * 1984-01-07 1985-08-01 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum beschichten von ueber eine stuetzwalze laufenden materialbahnen mit regelbarer auftragsstaerke
GB2178677A (en) * 1985-07-31 1987-02-18 Jagenberg Ag Coating webs
EP0423492A2 (fr) * 1989-10-14 1991-04-24 J.M. Voith GmbH Installation pour doser le couchage des bandes de papier ou de carton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0783053A1 (fr) * 1996-01-02 1997-07-09 Voith Sulzer Papiermaschinen GmbH Dispositif d'enduction pour déposer directement ou indirectement un matériau fluide ou pâteux sur une bande en mouvement

Also Published As

Publication number Publication date
JPH067729A (ja) 1994-01-18
FI930757A (fi) 1993-08-22
US5474608A (en) 1995-12-12
DE59304229D1 (de) 1996-11-28
EP0556551B1 (fr) 1996-10-23
CA2089919A1 (fr) 1993-08-22
ATE144567T1 (de) 1996-11-15
FI930757A0 (fi) 1993-02-19

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