EP1020560A2 - Verfahren und Anlage zum Imprägnieren und Beschichten von Papier - Google Patents

Verfahren und Anlage zum Imprägnieren und Beschichten von Papier Download PDF

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Publication number
EP1020560A2
EP1020560A2 EP99121634A EP99121634A EP1020560A2 EP 1020560 A2 EP1020560 A2 EP 1020560A2 EP 99121634 A EP99121634 A EP 99121634A EP 99121634 A EP99121634 A EP 99121634A EP 1020560 A2 EP1020560 A2 EP 1020560A2
Authority
EP
European Patent Office
Prior art keywords
paper web
coating
roller
resin
unit
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
EP99121634A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1020560B1 (de
EP1020560A3 (de
Inventor
Siegfried Fischer
Willi Erkelenz
Ernst Klas
Gisbert Krossa
Udo Unger
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.)
VITS VERWALTUNGS GMBH
Original Assignee
Vits Maschinenbau 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 Vits Maschinenbau GmbH filed Critical Vits Maschinenbau GmbH
Publication of EP1020560A2 publication Critical patent/EP1020560A2/de
Publication of EP1020560A3 publication Critical patent/EP1020560A3/de
Application granted granted Critical
Publication of EP1020560B1 publication Critical patent/EP1020560B1/de
Priority to CY20081100619T priority Critical patent/CY1108132T1/el
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
    • D21H23/70—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
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/826—Paper comprising more than one coating superposed two superposed coatings, the first applied being pigmented and the second applied being non-pigmented

Definitions

  • the invention relates to a method for impregnating and coating paper, which is intended for use as a top layer of abrasion-resistant laminates, according to the preamble of claim 1.
  • the invention also relates a system suitable for carrying out this method according to the preamble of claim 6.
  • the invention is based on a method which is described in CH 432818 is.
  • a paper web is passed through a resin bath passed through.
  • the in the nip of a pair of nip rollers Excess resin removed.
  • the coating compound with a nozzle tube applied to the top of the freshly impregnated, still wet paper web and smoothed with a squeegee.
  • the paper so impregnated and coated is then passed through a dryer on a conveyor belt, in sheets cut and processed into laminate by hot pressing.
  • the paper web soaked in resin is brought to a predetermined residual moisture dried before it is coated on one side. After coating, it will open Final moisture dried.
  • the decorative paper produced in this way can then become one Laminated or hot pressed onto the surface of a Wood-based panels are applied.
  • the last-mentioned document deals in particular with the composition a coating material whose resin component differs from the normal Melamine resin is characterized by a significantly increased viscosity. It will possible to apply a relatively thick coating in which the hard material particles are evenly distributed.
  • One of the advantages resulting from the homogeneous distribution result is seen in the fact that there is a smooth surface on which the embedded hard material particles are not felt.
  • the Practice has meanwhile shown that even when processing paper, the are produced according to the above-explained or similar processes, the Wear of the press plates is considerable.
  • the invention is therefore based on the object in the preamble of the claim Modify 1 specified method so that the coated paper at downstream operations, especially when hot pressing, none causes excessive wear on tools and machines. It is also within the scope of the task, plants according to the preamble of the claim 6 to create suitable for performing the method according to the invention are.
  • the first part of the task is characterized by the characteristics of claim 1 solved, the second part by the characterizing features of Claim 6. Further advantageous features of the invention are the subject of dependent claims.
  • claims 8, 10 and 11 relate to different embodiments of the coating system, which are characterized by that even when applying the top layer of wear on expensive Machine parts is kept as low as possible.
  • FIG. 1 to 3 show schematically an embodiment of one for performing the Plant suitable process according to the invention.
  • a paper web 1 runs through, which is from a roll 2 an impregnation unit 3, a coating unit 4, an intermediate dryer 5, a coating unit 6, an applicator unit 7 and one Final dryer 8.
  • the paper web 1 is deflected by a pulley 9 Trough 10 performed, which is filled with a liquid impregnating agent, preferably with urea resin, with melamine resin or with a mixture of urea and Melamine resin. Excess impregnation liquid is then removed from the soaked paper web 1 with wipers 11 and / or by a Squeeze roller pair 12 removed. The amount of liquid resin remaining in the paper corresponds approximately to the paper weight.
  • a liquid impregnating agent preferably with urea resin, with melamine resin or with a mixture of urea and Melamine resin.
  • the paper web 1 reaches approximately horizontal direction to a deflecting roller 13 of the coating unit 4, which in the as yet unpublished patent application DE 19814212.9-26 is described in detail. It wraps around the deflection roller 13 in one Angular range of approximately 180 degrees.
  • a metering roller 14 arranged. It has the same diameter as the deflection roller 13. Die Storage of one of the two rollers 13, 14 is displaceable, so that the width of the existing gap between the two rollers 13, 14 is variable.
  • the Metering roller 14, like the deflecting roller 13, is provided with a drive.
  • the two drives are mechanically or electrically coupled, so that the two Rollers 13, 14 with the same peripheral speed in synchronism Rotate the paper web in opposite directions.
  • Above the Deflection roller 13 is connected to the machine frame, not shown, arranged parallel to the axes of the two rollers 13, 14 retaining strip 16. That is the rear edge of a rectangular tab 17 made of flexible attached rubber-like material that extends across the entire working width. The remaining edges of the tab 17 are free.
  • a collecting funnel 20 for dripping coating compound provided under the slot nozzle 15 and the metering roller 14 is a collecting funnel 20 for dripping coating compound provided.
  • the slot nozzle 15 can also be arranged so that the Coating compound on the upper area of the metering roller 14 is applied. You can also under the guide roller 13 approximately near the Lead line be arranged.
  • the paper web 1 which is now provided on the top with about 20 to 150 g / m 2 of coating material, passes in a horizontal direction to the intermediate dryer 5, which is equipped in a known manner with a system of carrying nozzles, so that the paper web 1 is passed through the intermediate dryer 5 without contact. It is pre-dried to a predetermined residual moisture of about 8 to 17%.
  • a thin cover layer of about 10 to 80 g / m 2 made of a liquid resin is applied to the pre-dried coating by means of an anilox roller 21, which is applied via a line 22 into the gusset between the anilox roller 21 and a scraper 23 is introduced.
  • the liquid resin does not contain any admixture of abrasive particles.
  • the anilox roller 21 is coupled to the delivery and transport system, of which FIG. 1 only shows the roller 2, in such a way that its surface speed coincides with the transport speed, so that there is no relative speed between the anilox roller 21 and the coated paper web 1 at the contact point . This largely prevents the abrasive particles contained in the pre-dried coating from causing premature wear on the anilox roller.
  • a collecting trough 25 is arranged under the anilox roller 24.
  • a squeegee 26 is adjustable against its outer surface. Liquid resin is fed into the gusset between the anilox roller 24 and the scraper strip 26 via a line (not shown) corresponding to the line 22.
  • a resin layer of about 10 to 80 g / m 2 is applied to the back of the paper web.
  • a major advantage of the anilox rollers 21, 24 can be seen in the fact that the metering of the applied resin amounts takes place directly on the anilox roller, without any dosing elements attacking the paper web 1. Another important advantage is that there is no need to redirect the paper web.
  • the arrangement of the two anilox rollers 21, 24 is essentially the same Arrangement that is described in DE 3610943 C1.
  • liquid resin at two locations immediately behind one another, without that the paper web is supported on the opposite side in each case applied essentially straight line guidance.
  • the one on the bottom applied resin layer is used to glue the decorative paper with a Underlay, e.g. made of wood material, by hot pressing. It also often serves one Avoid curling of the paper web in the transverse direction.
  • the paper web 1 arrives at the final dryer 8, in which guided without contact and to the prescribed final moisture content of 4 to 9% is finally dried.
  • the system according to FIG. 2 differs from the system just described first of all by having a different impregnation unit 3a.
  • About one with tub 27 filled with liquid impregnating agent is an application roller 28 on the inlet side arranged with part of their outer surface in the impregnating bath immersed.
  • the paper web 1 is guided over the applicator roller 28 so that it is in the Area of an acute angle on its outer surface. Doing so Impregnation liquid that adheres to the outer surface of the applicator roller 28 on the Transfer underside of paper web 1.
  • the paper web 1 is by means of a roller 29 arranged just behind the application roller 28 and two others Rollers 30, which are stored a few meters above the tub 27, through a vertical Loop 31 led.
  • the paper web 1 is first the Intermediate dryer 5 and from there via deflection rollers 35 to the coating mechanism 6a fed.
  • the holding bar 41 is vibrated by means of a vibrator 42 removable.
  • the slot nozzle 38 can also be under the deflection roller 36 be arranged approximately in the vicinity of the run-up line, so that the liquid resin is similar as in the coating mechanism 6b of FIG. 3 explained below, directly on the Paper web 1 is applied.
  • the impregnation unit 3 is correct is only indicated in FIG. 3, with the impregnation unit 3 shown in FIG. 1 illustrated plant essentially coincide (with the exception of the in FIG. 3 wipers not present).
  • the paper web 1 From the pair of squeeze rollers 12 of the impregnation unit 3, the paper web 1 enters approximately horizontal direction to a deflecting roller 43 of the Coating unit 4 b. It wraps around the deflection roller 43 in one Angular range of approximately 180 degrees. Under the deflection roller 43 sits near the A slit nozzle 44 runs up the line. In the middle part of the looping area a pre-metering unit 45 is arranged, which is elastic to the paper web pressed flat bar 46 with low bending stiffness, preferably made of plastic.
  • the peripheral speed has opposite component.
  • the slot nozzle 44 Coating composition, which contains liquid resin and abrasive particles, in large, e.g. about 5 to 10-fold excess applied. Because of the weak elastic, but not slack bar 46 of the pre-metering unit 45 is the Most of the coating composition was scraped off, so that only a small amount, e.g. about 2 to 3 times excess remains on the paper web 1.
  • the coating unit 6b From there it is fed via deflection rollers 49 to the coating unit 6b, which with the previously described coating unit 4b structurally and functionally in essentially coincides. It comprises a deflecting roller 50 on which the Paper web 1 rests in a wrapping area; a slot nozzle 51 for Apply liquid resin to the one already pre-dried Coated paper web 1 lying on the deflection roller 50; a Predosing unit 52, which has a strip elastically pressed onto the paper web 1 53 with low bending stiffness, preferably a plastic strip; and an air brush 54.
  • the invention is concerned in particular with painting the paper web after it has already been coated is provided, which contains hard material particles.
  • the in Figures 1 to 3 Illustrated exemplary embodiments serve primarily for illustration of different coating mechanisms 6, 6a, 6b, with which on the highly abrasive acting coating can still be applied a top layer without expensive machine parts due to excessive wear from the hard material particles are exposed. Since the problem of minimizing wear is of course the Applying the coating material containing hard material also exists, it is understandable that in the embodiments of Figure 2 and Figure 3 Coating unit with the coating unit, both structurally and functionally in principle matches (4a with 6a; 4b to 6b). But it would be a misunderstanding from the FIGS.

Landscapes

  • Paper (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Laminated Bodies (AREA)
EP99121634A 1999-01-16 1999-10-30 Verfahren und Anlage zum Imprägnieren und Beschichten von Papier Expired - Lifetime EP1020560B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CY20081100619T CY1108132T1 (el) 1999-01-16 2008-06-11 Μεθοδος και εγκατασταση δια τη διαβροχη και επιστρωση χαρτιου

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901525A DE19901525C2 (de) 1999-01-16 1999-01-16 Anlage zum Imprägnieren und Beschichten von Papier
DE19901525 1999-01-16

Publications (3)

Publication Number Publication Date
EP1020560A2 true EP1020560A2 (de) 2000-07-19
EP1020560A3 EP1020560A3 (de) 2002-03-27
EP1020560B1 EP1020560B1 (de) 2008-03-12

Family

ID=7894452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121634A Expired - Lifetime EP1020560B1 (de) 1999-01-16 1999-10-30 Verfahren und Anlage zum Imprägnieren und Beschichten von Papier

Country Status (6)

Country Link
US (1) US6231670B1 (no)
EP (1) EP1020560B1 (no)
AT (1) ATE389062T1 (no)
CY (1) CY1108132T1 (no)
DE (2) DE19901525C2 (no)
ES (1) ES2303730T3 (no)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012126816A1 (de) * 2011-03-23 2012-09-27 Vits Technology Gmbh Vorrichtung und verfahren zum imprägnieren einer papierbahn
EP2781653A1 (de) * 2013-03-18 2014-09-24 Süddekor GmbH Vorrichtung und Verfahren zur Konfektionierung von beschichteten Dekorpapierbahnabschnitten und Verwendung einer Vorrichtung
WO2023041236A1 (de) * 2021-09-14 2023-03-23 Vits Technology Gmbh Verfahren zum beschichten einer bedruckten warenbahn

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19825156C1 (de) * 1998-03-31 1999-10-07 Vits Maschinenbau Gmbh Vorrichtung zum Auftragen einer Beschichtungsmasse auf eine durchlaufende Papierbahn
AU3252099A (en) * 1999-01-26 2000-08-18 Kronospan Technical Company Limited Method for impregnating decorative papers
KR100432918B1 (ko) * 2001-10-16 2004-06-04 김홍길 장판지의 제조방법 및 장치
DE10262235B4 (de) * 2002-11-12 2010-05-12 Kronotec Ag Spanplatte, insbesondere Fußbodenpaneel oder Möbelplatte, und Verfahren zu ihrer Herstellung
ITMI20040804A1 (it) * 2004-04-23 2004-07-23 Tocchio S R L Metodo ed apparecchiatura per la realizzazione di carte decorative e di pannelli laminati incorporanti tali carte decorative in particolare carte decorative e pannelli di copertura di superfici di pavimentazione mobili o pareti
DE102004063043B3 (de) * 2004-12-22 2006-07-20 Vits Systems Gmbh Vorrichtung zum Auftragen einer Beschichtungsmasse auf eine Papierbahn
JP4536555B2 (ja) * 2005-03-02 2010-09-01 三菱電機株式会社 検索表示装置
WO2007065222A1 (en) * 2005-12-07 2007-06-14 Depco-Trh Pty Ltd Pre-preg and laminate manufacture
DE102007035140B4 (de) * 2007-07-25 2009-08-20 Vits Systems Gmbh Vorrichtung zum Imprägnieren einer durchlaufenden Bahn
DE102007047636A1 (de) * 2007-10-04 2009-04-09 Dakor Melamin Imprägnierungen Gmbh Verfahren zum Herstellen einer abriebfesten Folie und nach diesem Verfahren herstellbare Finishfolie
DE102008008808A1 (de) * 2008-02-12 2009-08-13 Dekor-Kunststoffe Gmbh Verfahren zur Herstellung eines scheuerfesten Overlays
DE102009034605B3 (de) * 2009-07-24 2011-01-27 Vits Technology Gmbh Vorrichtung zum Beschichten einer durchlaufenden Bahn
DE102012103824B4 (de) * 2012-05-02 2015-12-03 Vits Technology Gmbh Verfahren zum Beschichten einer Papierbahn
PL422374A1 (pl) * 2017-07-27 2019-01-28 Kartonex Spółka Z Ograniczoną Odpowiedzialnością Sposób impregnowania tektury falistej i zespół urządzeń do impregnowania tektury falistej
US20190081317A1 (en) * 2017-09-11 2019-03-14 Andreas Keil Web coating and calendering system and method
CA3204473A1 (en) 2020-12-09 2022-06-16 Ecochem International Nv Use of non-halogen fire retardant composition for indirect fire protection layers on substrates
BE1028869B1 (nl) 2020-12-09 2022-07-11 Ecochem Int Nv Niet-halogeen brandvertragende samenstelling en gebruik van deze samenstelling voor directe en indirecte brandbeveiligingslagen op ondergronden

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DE1815312A1 (de) * 1967-12-19 1969-07-24 Formica Internat Ltd Oberflaechenbeschichtungsmaterial und seine Verwendung
GB1261483A (en) * 1969-02-03 1972-01-26 Isovolta A method of preparing laminated boards

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US3121642A (en) * 1961-09-29 1964-02-18 Congoleum Nairn Inc Process for producing decorative surface covering
US3373071A (en) * 1964-03-26 1968-03-12 Gen Electric Laminates
DE3237868A1 (de) * 1982-10-13 1984-04-19 Koenig & Bauer AG, 8700 Würzburg Druckwerk fuer den zeitungs- und zeitschriftendruck
DE3610943C1 (de) * 1986-04-02 1987-07-30 Vits Maschinenbau Gmbh Verfahren und Vorrichtung zum beidseitigen Auftragen von fluessigen,pastoesen oder schaumigen Massen auf Materialbahnen
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JPH08323748A (ja) * 1995-05-29 1996-12-10 Toho Rayon Co Ltd 成形材料及びその製造方法
JP3336911B2 (ja) * 1996-06-20 2002-10-21 松下電工株式会社 プリプレグの製造方法およびその装置
US5788792A (en) * 1997-01-27 1998-08-04 Lee; Chi-Shih Method for manufacturing an adhesive tape
DE19814212C1 (de) * 1998-03-31 1999-09-02 Vits Maschinenbau Gmbh Vorrichtung zum Auftragen einer abrasiven Beschichtungsmasse auf eine durchlaufende Papierbahn
DE19825156C1 (de) * 1998-03-31 1999-10-07 Vits Maschinenbau Gmbh Vorrichtung zum Auftragen einer Beschichtungsmasse auf eine durchlaufende Papierbahn

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DE1815312A1 (de) * 1967-12-19 1969-07-24 Formica Internat Ltd Oberflaechenbeschichtungsmaterial und seine Verwendung
GB1261483A (en) * 1969-02-03 1972-01-26 Isovolta A method of preparing laminated boards

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012126816A1 (de) * 2011-03-23 2012-09-27 Vits Technology Gmbh Vorrichtung und verfahren zum imprägnieren einer papierbahn
EP2781653A1 (de) * 2013-03-18 2014-09-24 Süddekor GmbH Vorrichtung und Verfahren zur Konfektionierung von beschichteten Dekorpapierbahnabschnitten und Verwendung einer Vorrichtung
WO2014146856A1 (de) * 2013-03-18 2014-09-25 SÜDDEKOR GmbH Vorrichtung und verfahren zur konfektionierung von beschichteten dekorpapierbahnabschnitten und verwendung einer vorrichtung
US9512571B2 (en) 2013-03-18 2016-12-06 Surteco Decor Gmbh Device and method for cutting to size coated decorative paper web sections and use of a device
WO2023041236A1 (de) * 2021-09-14 2023-03-23 Vits Technology Gmbh Verfahren zum beschichten einer bedruckten warenbahn

Also Published As

Publication number Publication date
DE59914686D1 (de) 2008-04-24
ES2303730T3 (es) 2008-08-16
EP1020560B1 (de) 2008-03-12
DE19901525C2 (de) 2001-02-08
CY1108132T1 (el) 2014-02-12
EP1020560A3 (de) 2002-03-27
US6231670B1 (en) 2001-05-15
ATE389062T1 (de) 2008-03-15
DE19901525A1 (de) 2000-07-20

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