EP0610574A1 - Dispositif pour l'enduction de fluides sur une bande de papier en mouvement - Google Patents

Dispositif pour l'enduction de fluides sur une bande de papier en mouvement Download PDF

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Publication number
EP0610574A1
EP0610574A1 EP93120015A EP93120015A EP0610574A1 EP 0610574 A1 EP0610574 A1 EP 0610574A1 EP 93120015 A EP93120015 A EP 93120015A EP 93120015 A EP93120015 A EP 93120015A EP 0610574 A1 EP0610574 A1 EP 0610574A1
Authority
EP
European Patent Office
Prior art keywords
paper web
roller
coating
distribution
rotationally symmetrical
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Withdrawn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
EP93120015A
Other languages
German (de)
English (en)
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 EP0610574A1 publication Critical patent/EP0610574A1/fr
Withdrawn legal-status Critical Current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
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • 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
    • 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
    • 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
    • B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
    • 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
    • B05C9/04—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 liquid or other fluent material to opposite sides of the work
    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod

Definitions

  • the invention relates to a device for coating flowable media, in particular coating color, on a running paper web, in particular with the features specified in the preamble of claim 1.
  • the liquid to be applied can be, for example, a glue suspension with which the paper web is impregnated; i.e. the glue suspension penetrates more or less completely into the interior of the paper web.
  • the liquid can also be a coating slip; This means a wide variety of pigment suspensions from which a cover layer is formed on the paper web.
  • the known methods for applying and distributing the coating slip on the paper web lead to the formation of a non-uniformly closed cover layer. The visual appearance of this top layer is called the orange peel effect.
  • the invention is therefore based on the object of further developing a device for coating flowable media on a paper web having the features of the preamble of claim 1 in such a way that the undesired orange peel effect of the liquid film on the paper web is largely avoided and thus a uniformity of the surface of coated papers is achieved.
  • the solution to this problem according to the invention is that the application devices immediately after the nip in the free train of the paper web distribution elements are subordinate.
  • these rubbing elements cause the coating slip to be rubbed in the still flowable state in such a way that a self-contained and largely uniformly coated paper web surface is achieved.
  • this is achieved by a rotating movement of the distribution element and / or its oscillating movement about the longitudinal axis and / or its oscillating movements transversely or longitudinally to the paper web.
  • the favorable embodiments are characterized by the subclaims.
  • Figure 1 shows a two-roll press.
  • the two rollers are driven in opposite directions to one another.
  • An application unit 5, 6 for a flowable medium is arranged laterally next to the part of the roller circumference of each roller 1, 2 which runs from bottom to top.
  • the application device 5 applies coating color and the application device 6 glue to the roller.
  • the paper web 4 is guided from top to bottom through the nip 3.
  • a film of a flowable medium is applied to the paper web in the areas 7, 8 which the nip forms with the paper web.
  • this grater is a rotationally symmetrical body 10a, which is designed as a roller and which, with a certain pressure, contacts the body with the coating slip coated paper web is pressed.
  • This roller is rotatably supported and is driven. It rotates about its own axis in the direction of the paper web or in the opposite direction and, due to a further drive, which is not shown in detail here, performs oscillating movements transversely to the paper web.
  • the paper web is then fed to further working devices via a deflecting element, shown here as deflecting roller 11a.
  • a total of 11 drive options can be met with this version.
  • the main distinguishing features are the direction of rotation in relation to the running direction of the paper web and the relative speed between the roller circulation and the paper web speed.
  • roller rotates in the opposite direction to the running direction of the paper web, a rubbing effect can only be achieved by the rotation of the roller, but only along the direction of the paper web running.
  • the additional oscillation of the roller transverse to the paper web direction favors the rubbing effect. Oscillating movements along the direction of the paper web and a combination of longitudinal and transverse movements with respect to the paper web are possible.
  • roller If the roller is rotatably supported and is not driven, it can be taken along by the paper web due to its speed. A device that brakes the roller is then necessary in order to achieve the rubbing effect. In addition, it is also expedient here to have the roller perform oscillating movements transverse to the direction of the paper web in order to ensure a good rubbing effect over the entire plane of the paper web.
  • the surface of the roller can be smooth or designed as a profile.
  • Another option is a wire-wrapped roller.
  • Smooth rollers are preferably provided with a Cr cover or paint-repellent and wear-resistant coatings, such as Teflon, rubber, polyurethane or ceramic.
  • the roller diameter is preferably 100 to 400 mm.
  • FIG. 2 shows a two-roll press analogous to FIG. A roller 1 and a roller 2, which are arranged axially parallel to one another and rotatably mounted and together form a roller nip 3 for passing a paper web 4.
  • the two rollers are driven in opposite directions to each other.
  • An application unit 5, 6 for a flowable medium is arranged laterally next to the part of the roller circumference of each roller 1, 2 which runs from bottom to top.
  • the paper web 4 is guided from top to bottom through the nip 3.
  • a film of flowable medium is applied to the paper web in the areas 7, 8 that the nip forms with the paper web. Both application devices apply coating color to the surface of the roller.
  • the coating slip By guiding the paper web from top to bottom through the nip, the coating slip is applied to the paper web in the desired thickness.
  • a grater is arranged on both sides for rubbing the coating slip.
  • These distribution elements in the case shown rotationally symmetrical bodies 10a, are a rod in the figure.
  • the surface of the rod can be smooth, the diameter is preferably 10-30mm. It is also possible to wrap the rod with wire or to give its surface a profile.
  • the rod itself does not rotate.
  • additional drive options which are not shown in the figure, are to be provided for the realization of oscillating movements around the rod axis as well as longitudinally in or transversely to the direction of the paper web or a combination of longitudinal and transverse movements relative to the paper web.
  • rollers on both sides of the paper web.
  • the execution and design of the drive options is as in Figure 1 described.
  • the distribution elements are preferably arranged on both sides of the paper web so that they are offset from one another in the running direction.
  • the paper web 4 is passed on to the distribution elements via a deflection device, here a deflection roller 11a.
  • a deflection roller 11a There is also the possibility, in order to avoid the contact of a still wet or moist coated paper web with the deflecting roller 11a, to provide a drying process between the deflecting roller and the grater.
  • Figure 3a shows the 2-roll press arrangement already described in Figure 2 in a modified form.
  • grating members 10a are also arranged on both sides here. These can be designed as described in FIG. 2 or in FIG. 1. Analogously to this, the drive options as in the figures already described can also be implemented.
  • the deflection of the paper web takes place here contactlessly via an air cushion deflection device 11b.
  • the paper web is then dried by means of an infrared device 12a.
  • Figure 3b Another possibility for the subsequent drying is in Figure 3b shown and consists in subjecting the paper web to a suspension drying 12b after the infrared drying 12a.
  • the radius of curvature of the working surface of the rod 10b is preferably chosen to be larger than the radius of the rollers used for it, so that the effective working surface of the grater is larger.
  • the hydrobar shoes can be stationary or equipped with an additional drive for realizing oscillating movements transverse to the paper web, which is not shown in the figure.
  • the surface of the hydrobar shoe can be smooth or can be provided with a profile as illustrated in FIGS. 5 and 6.
  • the profile will preferably not extend over the entire surface of the hydrobar shoe, but only over the first rising part of the curve in the running direction of the paper web. The following descending part is executed smoothly. This ensures that the surface layer of coating slip with its unevenness is roughened and then rubbed evenly.
  • the paper web is then fed via a deflection element 11, for example subsequent drying devices.
  • FIG. 5a, 5b and 5c show possibilities for the profile design.
  • the profile of the work surface shown in FIG. 5a is wavy.
  • Figures 5b and 5c illustrate the possibility of using a tooth and a rack profile.
  • Figures 6a, 6b and 6c give an overview of possible profile contours in plan view. Parallel profile contours, profile contours with a pitch and profile contours with changing pitch are conceivable.

Landscapes

  • Coating Apparatus (AREA)
EP93120015A 1993-01-29 1993-12-11 Dispositif pour l'enduction de fluides sur une bande de papier en mouvement Withdrawn EP0610574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4302435 1993-01-29
DE4302435A DE4302435A1 (en) 1993-01-29 1993-01-29 Paper web coating appts. - has smoother against side of web in free path after leaving gap between applicator rollers

Publications (1)

Publication Number Publication Date
EP0610574A1 true EP0610574A1 (fr) 1994-08-17

Family

ID=6479162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120015A Withdrawn EP0610574A1 (fr) 1993-01-29 1993-12-11 Dispositif pour l'enduction de fluides sur une bande de papier en mouvement

Country Status (5)

Country Link
EP (1) EP0610574A1 (fr)
JP (1) JPH07204555A (fr)
CA (1) CA2114464A1 (fr)
DE (1) DE4302435A1 (fr)
FI (1) FI940358A7 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3479908A1 (fr) * 2017-11-03 2019-05-08 A & R Carton OY Procédé et unité d'application de revêtement permettant d'appliquer un revêtement sur une bande de matériau

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243518C2 (de) * 1992-12-22 1996-03-28 Feldmuehle Ag Stora Vorrichtungen zum Auftrag von Flüssigkeit auf beide Seiten einer Materialbahn und Verfahren zum Auftrag einer Flüssigkeit auf eine Materialbahn mit diesen Vorrichtungen
DE4415581C2 (de) * 1994-05-04 1995-12-07 Voith Gmbh J M Papier-Streichvorrichtung
DE4420242A1 (de) * 1994-06-10 1995-01-05 Voith Gmbh J M Einrichtung zur wahlweisen Behandlung einer laufenden Bahn
DE29511088U1 (de) * 1995-07-08 1995-09-14 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Vorrichtung zum Herstellen einer gestrichenen Materialbahn
DE29702629U1 (de) * 1997-02-15 1997-04-10 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Vorrichtung zum indirekten ein- oder beidseitigen Auftragen eines flüssigen Mediums auf eine laufende Warenbahn
DE19751697A1 (de) * 1997-11-21 1999-05-27 Voith Sulzer Papiertech Patent Vorrichtung zum indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine Materialbahn, insbesondere aus Papier oder Karton
DE19800954A1 (de) 1998-01-13 1999-07-15 Voith Sulzer Papiertech Patent Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
FI991096A7 (fi) 1999-05-12 2000-11-13 Valmet Corp Menetelmä paperin, erityisesti hienopaperin, valmistamiseksi ja paperi konelinja erityisesti hienopaperin valmistamista varten
DE10126365A1 (de) * 2001-05-30 2002-12-05 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum beidseitigen Auftragen von Auftragsmedium auf eine Materialbahn
DE102009003065A1 (de) 2009-05-13 2010-11-18 Voith Patent Gmbh Auftragsvorrichtung
CN107511301B (zh) * 2016-04-01 2019-02-12 马鞍山联洪合成材料有限公司 一种阻尼片隔离纸涂胶装置的涂胶方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334102A (en) * 1940-08-26 1943-11-09 Dow Chemical Co Coating equipment
US3203392A (en) * 1961-06-27 1965-08-31 Du Pont Freely supported rod for smoothing coating composition applied to webs
DE1804824A1 (de) * 1968-10-24 1970-05-27 Ind Technik Plastikmaschinen G Streich-,Impraegnier- und Auftragsmaschine,insbesondere fuer die Kunstlederherstellung
DE8414413U1 (de) * 1984-05-11 1987-11-19 J.M. Voith Gmbh, 7920 Heidenheim Vorrichtung zum Auftragen einer Flüssigkeit auf eine laufende Bahn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2057302A (en) * 1978-02-14 1981-04-01 Carnation Co Sensitizing screen process film
DE3417487A1 (de) * 1984-05-11 1985-11-21 J.M. Voith Gmbh, 7920 Heidenheim Vorrichtung zum auftragen einer fluessigkeit auf eine laufende bahn
DE3725893C1 (en) * 1987-08-05 1988-12-15 Voith Gmbh J M Process and device for coating and for smoothing the coating
DE3934418A1 (de) * 1989-10-14 1991-04-18 Voith Gmbh J M Rakel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334102A (en) * 1940-08-26 1943-11-09 Dow Chemical Co Coating equipment
US3203392A (en) * 1961-06-27 1965-08-31 Du Pont Freely supported rod for smoothing coating composition applied to webs
DE1804824A1 (de) * 1968-10-24 1970-05-27 Ind Technik Plastikmaschinen G Streich-,Impraegnier- und Auftragsmaschine,insbesondere fuer die Kunstlederherstellung
DE8414413U1 (de) * 1984-05-11 1987-11-19 J.M. Voith Gmbh, 7920 Heidenheim Vorrichtung zum Auftragen einer Flüssigkeit auf eine laufende Bahn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3479908A1 (fr) * 2017-11-03 2019-05-08 A & R Carton OY Procédé et unité d'application de revêtement permettant d'appliquer un revêtement sur une bande de matériau

Also Published As

Publication number Publication date
CA2114464A1 (fr) 1994-07-30
FI940358L (fi) 1994-07-30
DE4302435A1 (en) 1993-08-12
JPH07204555A (ja) 1995-08-08
FI940358A0 (fi) 1994-01-25
FI940358A7 (fi) 1994-07-30

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