EP0438743B1 - Beschichtungsverfahren und Auftragseinrichtung zur Beschichtung laufender Warenbahnen aus Papier oder Karton - Google Patents

Beschichtungsverfahren und Auftragseinrichtung zur Beschichtung laufender Warenbahnen aus Papier oder Karton Download PDF

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Publication number
EP0438743B1
EP0438743B1 EP90124884A EP90124884A EP0438743B1 EP 0438743 B1 EP0438743 B1 EP 0438743B1 EP 90124884 A EP90124884 A EP 90124884A EP 90124884 A EP90124884 A EP 90124884A EP 0438743 B1 EP0438743 B1 EP 0438743B1
Authority
EP
European Patent Office
Prior art keywords
coating
roller
layer
application
process according
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.)
Revoked
Application number
EP90124884A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0438743A1 (de
Inventor
Martin Dr. Kustermann
Hans-Peter Dr. Sollinger
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6398818&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0438743(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by JM Voith GmbH filed Critical JM Voith GmbH
Priority to AT90124884T priority Critical patent/ATE95585T1/de
Publication of EP0438743A1 publication Critical patent/EP0438743A1/de
Application granted granted Critical
Publication of EP0438743B1 publication Critical patent/EP0438743B1/de
Anticipated expiration legal-status Critical
Revoked 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
    • D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
    • 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
    • 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
    • B05C9/06—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
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/18—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material only one side of the work coming into contact with the liquid or other fluent material

Definitions

  • the invention relates to a coating method according to the preamble of claim 1 and corresponding application devices.
  • a method for coating running material webs with two successive coating processes, the layer applied first being still moist when the second layer is applied, is known from US Pat. No. 3,202,536.
  • the two coating stations are arranged here on a single roller guiding the web as well as on two successive rollers.
  • a so-called air brush is used as the final smoothing element.
  • a corresponding application device with a roller guiding the web on a coating device is also known from CA-PS 882 640.
  • the layer is applied by an application roller and scraped off by a doctor blade. It is envisaged that a mixture for the coating mass of kaolin-containing mass as well as mass consisting of starch, protein or thermoplastic synthetic resin is used.
  • the first application layer has a relatively high consistency, i.e. with a solids content of more than 55% and the second layer has a much lower consistency with a lower solids content of at most 45%, the main proportion being kaolin.
  • the first layer is applied very thickly, so that it can first be smoothed using a doctor blade.
  • the object of the invention is to provide a device and a method with which a perfect coat application can also be achieved even at high solids contents, which are common today also in mass products. This applies in particular to the use in cardboard, where the roughness of the surface of the raw cardboard is relatively large, so that with other coating processes, e.g. use a doctor blade as a leveling element, uncovered areas can appear on the protruding "mountains".
  • the application mass is imprinted on the web from the surface of the first web guide roller, and there is certainly a brief deformation of the paper web.
  • the amount applied or transferred is relatively small, in such a way that solid particles of the coating slip remain on the "mountains" of micro-roughness.
  • the pressing pressure and the hydraulic pressure in the press nip result in a certain dewatering of the coating slip of the first layer, but a moisture content of the coating slip remains.
  • the "pre-dewatering" in the press nip ensures that the coating compound adheres to the "mountains" of the web everywhere. A certain intermediate drying before the second layer application is possible.
  • the second application layer is only metered by means of the grooves of a roller doctor provided with circumferential grooves, without acting on the layer with a further smoothing element.
  • a bleeding is achieved to a sufficient extent so that further smoothing, combined with possible disadvantages of scraping, is unnecessary.
  • the web is passed through a press nip formed between two rollers 1 and 2.
  • the one roller which is provided with a rubberized surface, is assigned an application unit which has a nozzle chamber 6 and, at its outlet end, a roller doctor blade 7 provided with circumferential grooves and a holder 8 for the same.
  • the hardness of the rubber coating of the roller 1 can be between 0 and 200, preferably 10 and 70 P and J.
  • the application quantity for the case of cardboard is 6 to 40 ml / m2, preferably 12 to 22 ml / m2.
  • the second layer is applied in a comparable arrangement with a doctor blade 11 and its holder 12 and nozzle chamber 9, but a leveling blade or a smooth doctor blade at point 10 can also be used as a leveling element.
  • the consistencies in question are between 50 and 70%, preferably 50 and 60% maximum for the first application layer and between 60 and 70% maximum for the second application layer. It is to be regarded as favorable if a nozzle chamber 6, 9 is provided as the application unit, at the outlet end of which a roller doctor blade 7, 11 with its holder is located in the vicinity of the surface to be coated 8, 12 is arranged. So you have the advantage over the air brush method that you can work with a relatively high consistency overall, but especially with the second application layer.
  • the line pressures in the press nip between the first two rolls 1 and 2 are between 5 and 60 kN / m, preferably 20 to 40 kN / m.
  • the arrangement according to FIG. 2 has only a total of two web guide rollers 21 and 22, each being assigned an application device of the type described. This arrangement is possible in the case of cardboard because it expands less than paper due to the moistening in the coating unit.
  • FIG. 4 also shows that a transfer roller 17 for the coating slip can also be used for the second coating device. It is then to be doctored by one of the known metering elements.
  • the first application layer can be dosed with a doctor blade instead of with the grooves of a roller squeegee, but here the work of the doctor blade must be monitored very closely.

Landscapes

  • Paper (AREA)
  • Coating Apparatus (AREA)
  • Saccharide Compounds (AREA)
  • Fats And Perfumes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP90124884A 1990-01-26 1990-12-20 Beschichtungsverfahren und Auftragseinrichtung zur Beschichtung laufender Warenbahnen aus Papier oder Karton Revoked EP0438743B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90124884T ATE95585T1 (de) 1990-01-26 1990-12-20 Beschichtungsverfahren und auftragseinrichtung zur beschichtung laufender warenbahnen aus papier oder karton.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4002256 1990-01-26
DE4002256A DE4002256A1 (de) 1990-01-26 1990-01-26 Beschichtungsverfahren und auftragseinrichtung zur beschichtung laufender warenbahnen aus papier oder karton

Publications (2)

Publication Number Publication Date
EP0438743A1 EP0438743A1 (de) 1991-07-31
EP0438743B1 true EP0438743B1 (de) 1993-10-06

Family

ID=6398818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124884A Revoked EP0438743B1 (de) 1990-01-26 1990-12-20 Beschichtungsverfahren und Auftragseinrichtung zur Beschichtung laufender Warenbahnen aus Papier oder Karton

Country Status (9)

Country Link
EP (1) EP0438743B1 (pt)
JP (1) JPH04313360A (pt)
AT (1) ATE95585T1 (pt)
BR (1) BR9006678A (pt)
CA (1) CA2035061A1 (pt)
DE (2) DE4002256A1 (pt)
ES (1) ES2044390T3 (pt)
FI (1) FI905757A (pt)
NO (1) NO176676C (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL422374A1 (pl) * 2017-07-27 2019-01-28 Kartonex Spółka Z Ograniczoną Odpowiedzialnością Sposób impregnowania tektury falistej i zespół urządzeń do impregnowania tektury falistej

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211401A1 (de) * 1992-04-04 1993-10-07 Voith Gmbh J M Beschichtungseinrichtung für Bahnen aus Papier oder Karton
FI93885C (fi) * 1992-05-21 1995-06-12 Valmet Paper Machinery Inc Päällystyslaite liimapuristimen telan, paperin tai kartongin päällystämiseksi
DE4224717B9 (de) * 1992-07-27 2004-08-19 Mitsubishi Hitec Paper Bielefeld Gmbh Verfahren zur Herstellung eines druckempfindlichen Aufzeichnungsblattes
FI93665C (fi) * 1992-11-13 1995-05-10 Valmet Paper Machinery Inc Menetelmä ja laitteisto paperirainan päällystämiseksi
WO1994023127A1 (en) * 1993-04-06 1994-10-13 Veitsiluoto Oy A method of coating paper and an apparatus therefor
DE4414949A1 (de) * 1994-04-28 1995-11-02 Voith Gmbh J M Vorrichtung zum Auftragen von mindestens einem flüssigen Medium auf eine laufende Materialbahn
DE19508178A1 (de) * 1995-03-09 1996-09-12 Draiswerke Gmbh Verfahren und Anlage zum Behandeln von Streichfarbe beim Auftrag auf eine Papier-Bahn
DE19606459A1 (de) * 1996-02-21 1997-08-28 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtungen zum Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19623622A1 (de) * 1996-06-13 1997-12-18 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zur Beschichtung einer laufenden Materialbahn
DE29610395U1 (de) * 1996-06-13 1996-08-22 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Vorrichtung zum aufeinanderfolgenden Auftragen von zwei Schichten von flüssigen oder pastösen Medien auf eine Seite einer laufenden Materialbahn
FI110274B (fi) 1996-11-04 2002-12-31 Metso Paper Inc Menetelmä ja sovitelma liikkuvan kartonkiradan päällystämiseksi
DE19827030A1 (de) * 1998-06-17 1999-12-23 Voith Sulzer Papiertech Patent Auftragsvorrichtung
DE19958109A1 (de) * 1999-12-02 2001-06-07 Voith Paper Patent Gmbh Vorrichtung zum indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
DE10126365A1 (de) * 2001-05-30 2002-12-05 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum beidseitigen Auftragen von Auftragsmedium auf eine Materialbahn

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352582A2 (de) * 1988-07-27 1990-01-31 J.M. Voith GmbH Auftragseinrichtung zur Beschichtung laufender Warenbahnen sowie Verfahren zur Beschichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870738A (en) * 1957-02-28 1959-01-27 Black Clawson Co Paper coating machine
US3202536A (en) * 1961-11-08 1965-08-24 Beloit Corp Method and apparatus for coating paper

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352582A2 (de) * 1988-07-27 1990-01-31 J.M. Voith GmbH Auftragseinrichtung zur Beschichtung laufender Warenbahnen sowie Verfahren zur Beschichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL422374A1 (pl) * 2017-07-27 2019-01-28 Kartonex Spółka Z Ograniczoną Odpowiedzialnością Sposób impregnowania tektury falistej i zespół urządzeń do impregnowania tektury falistej

Also Published As

Publication number Publication date
NO176676C (no) 1995-05-10
ATE95585T1 (de) 1993-10-15
NO904827L (no) 1991-07-29
BR9006678A (pt) 1991-10-01
DE59003011D1 (de) 1993-11-11
JPH04313360A (ja) 1992-11-05
FI905757A (fi) 1991-07-27
FI905757A0 (fi) 1990-11-21
EP0438743A1 (de) 1991-07-31
CA2035061A1 (en) 1991-07-27
ES2044390T3 (es) 1994-01-01
NO904827D0 (no) 1990-11-06
NO176676B (no) 1995-01-30
DE4002256A1 (de) 1991-08-01

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