EP3578385A1 - Procédé de finissage d'un panneau de construction de grand format - Google Patents

Procédé de finissage d'un panneau de construction de grand format Download PDF

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Publication number
EP3578385A1
EP3578385A1 EP18176816.9A EP18176816A EP3578385A1 EP 3578385 A1 EP3578385 A1 EP 3578385A1 EP 18176816 A EP18176816 A EP 18176816A EP 3578385 A1 EP3578385 A1 EP 3578385A1
Authority
EP
European Patent Office
Prior art keywords
building board
embossing
recess
decor
embossed
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
EP18176816.9A
Other languages
German (de)
English (en)
Other versions
EP3578385B1 (fr
Inventor
Frank Oldorff
Ingo Lehnhoff
Norbert Kalwa
Rüdiger KLUPSCH
Thomas Lehmann
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.)
Flooring Technologies Ltd
Original Assignee
Flooring Technologies Ltd
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
Priority to ES21174458T priority Critical patent/ES2971683T3/es
Priority to PT181768169T priority patent/PT3578385T/pt
Application filed by Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to EP21174458.6A priority patent/EP3885155B1/fr
Priority to EP18176816.9A priority patent/EP3578385B1/fr
Priority to PL21174458.6T priority patent/PL3885155T3/pl
Priority to PL18176816T priority patent/PL3578385T3/pl
Priority to ES18176816T priority patent/ES2882709T3/es
Priority to PCT/EP2019/058287 priority patent/WO2019233652A1/fr
Priority to CN201980038212.XA priority patent/CN112423995B/zh
Priority to RU2020141787A priority patent/RU2757241C1/ru
Priority to US16/972,430 priority patent/US11156004B2/en
Publication of EP3578385A1 publication Critical patent/EP3578385A1/fr
Application granted granted Critical
Publication of EP3578385B1 publication Critical patent/EP3578385B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24—Pressing or stamping ornamental designs on surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/043—Ornamental plaques, e.g. decorative panels, decorative veneers containing wooden elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02005—Construction of joints, e.g. dividing strips
    • E04F15/02033—Joints with beveled or recessed upper edges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins

Definitions

  • the invention relates to a method for finishing a large-scale provided building board, in particular MDF or HDF, with a top and bottom, wherein at least in the top of a relief is imprinted, and then printed on the embossed top of the building board a decor and the decor then by Applying an abrasion resistant layer is sealed.
  • Such a method is for example from the EP 1 820 640 B1 known.
  • Such structural panels are divided after finishing in individual panels and used for example as a floor or as wall and ceiling panels and are often provided with a wood, stone or fantasy decoration with superimposed, three-dimensional surface.
  • the split panels have connecting means (tongue and groove) and are usually equipped with locking means for locking adjacent plates in the horizontal and vertical directions (so-called click panels).
  • the superimposition of decor and three-dimensional surface creates a realistic visual and haptic impression of the imitated material.
  • a structure adapted to the decor is referred to as a decore-synchronous structure (embossed register).
  • the decor is present either as a paper layer laminated onto the carrier plate or as a color layer printed directly onto the carrier plate.
  • the decor is also provided with a wear-resistant layer.
  • abrasion-resistant paper layers, so-called overlays, or after curing abrasion resistant paint or resin layers are used.
  • the decorsynchronous structure lies as a three-dimensional surface structure and is impressed by means of a correspondingly three-dimensionally structured press plate into the plate surface.
  • the thermal and pressure-activatable constituents of the coating melt and run out and fill the three-dimensional structure embossing with hardening.
  • the structure usually has a height of up to 500 ⁇ m.
  • the number and the depth of the structures are limited on the one hand by the available amount of activatable components and on the other by the pressing force.
  • a generic method according to the invention provides that the relief is embossed in a first embossing step as at least one strip-shaped recess with two opposite side walls, a bottom wall connecting them and a depth. Preferably, a plurality of mutually parallel recesses is impressed.
  • At least one further recess extending at an angle transversely to the at least one depression is embossed.
  • a plurality of transverse depressions are preferably impressed, along which the division of the panels can then take place in the transverse direction.
  • a MDF or HDF board is used as a building board, it is provided that their density profile (density profile over the cross-section of the plate) compared to a conventional density profile, as for example from the EP 3 023 261 B1 is known, is lowered.
  • a pressing skin forms at the top and the bottom, which is also called "rotting layer”.
  • the plate when pressed with a maximum apparent density in the cover layers of 950-1000 kg / m 3 , can be provided press-finished, that is, the press-skin is not removed. However, it is also possible to at least partially abrade the press skin to reduce the density at the top.
  • a tempering agent may be applied to the top, which is preferably an aqueous melamine resin.
  • the tempering agent it is achieved that the previously reduced bulk density at the upper side (in the cover layer) is increased again in order to achieve sufficient strength properties on the later panels.
  • the building board is heated to 40 to 80 ° C, preferably 60 ° C and when embossing the at least one depression, a surface temperature of up to 220 ° C is established.
  • the heating of the building board can be done by means of water vapor.
  • the top of the building panel can be primed with a white paint before embossing the recess.
  • At least the recess can be printed by means of a digital printer with a monochrome or multi-colored decor.
  • a white color for the primer any other color may be used as well.
  • the first embossing step may be carried out by means of at least one calendering roll. This has the advantage that the embossing step can be integrated into the production line. The embossing can then be followed directly by the pressing of the wood-based panel in a Kontipresse, in which the previously scattered fiber cake was pressed into a plate of desired thickness, connect, or upstream of the printing of the top in a printing system. The production is thereby optimized.
  • the building board After completion of the construction, which consists of at least a primer, the decor and an abrasion-resistant layer, the building board is laminated in a short-cycle press under high pressure and high temperature and is characterized in a second embossing step again in the at least one strip-shaped depression to the Forming the side walls to achieve without changing the position of the bottom wall in depth.
  • the side walls formed in the first embossing step are "rounded", so that these roundings are converted again into a plane surface by the second embossing step.
  • the melamine resin already hardens during the first embossing step and increases the bulk density. If the tempering agent is applied after the first embossing step, it hardens in the short-cycle press. The same applies in the case when in the first embossing step, a sufficiently high temperature is not achieved.
  • the depth of the at least one depression is preferably up to 0.7 mm and may in particular be stepped so that the bottom wall is step-shaped. In such a case, several first pressing steps are carried out with different pressing depths.
  • marks may be printed on the bottom walls of the at least one depression, which may consist of lines, circles, points, crosses or other graphic characters. Preferably, lines are used.
  • the re-embossing in the recess in the second embossing step is preferably carried out in a short-cycle press, in which strip-shaped elevations are applied to the press plate.
  • a structure can be embossed in the first and / or second embossing step, which structure runs at least partially synchronously with the decoration, which is called “embossed register” in the technical language.
  • the starting point is a large-format HDF board with a length of 2,800 or 1,860 mm, a width of 2,070 mm and a thickness of 7 to 14 mm.
  • the bulk density is lowered compared to a conventional HDF board as a comparison of FIG. 7 with the FIGS. 8 and 9 shows.
  • the cover layer tips were lowered compared to the standard by at least 40 kg / m 3 .
  • Good results were achieved with a reduction of up to 60 kg / m 3 .
  • the apparent density is in the range of 950 to 1000 kg / m 3 .
  • An example of the density profile of a conventional HDF board is in FIG. 7 shown.
  • FIGS. 8 and 9 show examples of gross density profiles of structural panels used in the invention.
  • aqueous melamine resin In order to impress depressions 5, 6 in the top 2 of the building board 1, it is first heated to a temperature between 30 and 50 ° C by means of steam. Then, as a tempering agent, 10 to 50 g / m 3 , preferably 30 g / m 3 of aqueous melamine resin is applied. It may be a standard impregnating resin having a solids content of 50 to 65 wt.%, Preferably 60 wt.% Act. In addition to water, other additives, such as hardeners, wetting agents and the like may be present in the solution. Alternatively, it is also possible to use UF resin as the bonding agent or UF and melamine resins in mixtures.
  • flexibilizing agents eg, 1,4-butanediol, caprolactam, polyglycol, etc.
  • a subsequent addition of the elastification agent should be on the order of about 3 to 7 wt.%.
  • the thus pre-treated building board 1 is passed under one or more calender rolls 20 arranged one behind the other with embossing rings 21 arranged parallel to one another.
  • embossing rings 21 arranged parallel to one another.
  • 6 are impressed with a depth T of up to 0.7 mm.
  • the line pressure of the embossing rings 21 is up to 300 N / mm and the surface temperature is up to 220 ° C.
  • the tempering agent on the upper side 2 is at least partially reacted, so it hardens at least partially, thereby increasing the bulk density.
  • the recesses 5, 6 can be formed graduated, for example by several calender rolls 20 are used with different stamping rings 21 and, for example, first 0.3 mm and then a further depth T of up to 0.7 mm is embossed. Between the embossing rings 21, a structure can be engraved in the jacket 22 of the calendering roll 20, which is then embossed in the upper side 3 next to the depressions 5, 6 in the first embossing step.
  • the top 2 is primed with a white base color.
  • a decoration 3 is printed on the primer 11 by means of digital printing, wherein the color dots of the digital printer not only on the flat top 2, but also on the side walls 5.1, 5.2 and the bottom wall 5.3 of the strip-shaped recesses 5, 6 are shown, so that the recesses 5, 6 are completely decorated.
  • the decor 3 may be monochrome or multi-colored and is applied so that it runs at least partially synchronous with the structure previously embossed. Simultaneously with the decor 3 marks 7 are printed on the bottom wall 5.3.
  • the marks 7 may be circles 7.1, crosses 7.2, lines 7.3 and lines 7.4 or other geometric figures. By means of these markings 7, the building board 2 can be aligned via a camera system for carrying out further processing steps.
  • a return 8 and on the decor 3 an overlay paper 4.
  • an overlay paper 4 a liquid overlay can also be applied in the roll application, into which corundum is mixed or scattered.
  • the return 8 can be applied liquid.
  • This structure is then fed to a short-cycle press 30, the upper press plate 31 is provided with strip-shaped elevations 32.
  • the building board 1 is aligned, so that the ridges 32 in the subsequent compression of the structure again in the embossed recesses 5, 6 dive and the coated during the coating of the top 2 side walls 5.1, 5.2 of the wells 5, 6 again to adjust parallel and planar side walls 5.1, 5.2 in a second embossing step without changing the depth T of the recesses 5, 6 or the position of the bottom walls 5.3.
  • FIG. 4 shows, the elevations 32 in the transition region from the side walls 5.1, 5.2 to the bottom wall 5.3 formed larger than the width of the recesses 5, 6, to safely form the lower edges of the recesses 5, 6.
  • the pressing time in the second embossing step is between 10 and 30 seconds, preferably 12 to 15 seconds, in which the resins melt and connect to the building board 1.
  • the temperature of the press plates 31, 33 is increased during the pressing, so that a surface temperature of 120 ° to 180 ° C increases in the course of pressing on the compact.
  • the pressure curve is carried out starting from a pressure build-up phase in a holding phase and a pressure reduction phase.
  • the embossing depth T will be carried out in the sense of a path control.
  • the at least one calender roll 20 is integrated into the printing system, or this immediately upstream. For a meaningful design must in the first Embossing step at least two in the longitudinal direction L and two in the transverse direction Q depressions 5, 6 are embossed, so that the side edges of the split panels are all lowered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Finishing Walls (AREA)
EP18176816.9A 2018-06-08 2018-06-08 Procédé de finissage d'un panneau de construction de grand format Active EP3578385B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
ES18176816T ES2882709T3 (es) 2018-06-08 2018-06-08 Procedimiento para el refinado de una placa de construcción de formato grande
EP21174458.6A EP3885155B1 (fr) 2018-06-08 2018-06-08 Procédé de finition d'une plaque de construction grand format fournie
PT181768169T PT3578385T (pt) 2018-06-08 2018-06-08 Processo para acabamento de um painel de construção de grande formato
PL21174458.6T PL3885155T3 (pl) 2018-06-08 2018-06-08 Sposób uszlachetniania dostarczonej wielkoformatowej płyty budowlanej
PL18176816T PL3578385T3 (pl) 2018-06-08 2018-06-08 Sposób uszlachetnienia dostarczonej wielkoformatowej płyty budowlanej
EP18176816.9A EP3578385B1 (fr) 2018-06-08 2018-06-08 Procédé de finissage d'un panneau de construction de grand format
ES21174458T ES2971683T3 (es) 2018-06-08 2018-06-08 Procedimiento para el acabado de un panel de construcción de gran formato
CN201980038212.XA CN112423995B (zh) 2018-06-08 2019-04-02 对提供的建筑板进行精整的方法
PCT/EP2019/058287 WO2019233652A1 (fr) 2018-06-08 2019-04-02 Procédé pour le finissage d'une plaque de construction préparée
RU2020141787A RU2757241C1 (ru) 2018-06-08 2019-04-02 Способ отделки поставляемой строительной панели
US16/972,430 US11156004B2 (en) 2018-06-08 2019-04-02 Method for finishing a supplied building panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18176816.9A EP3578385B1 (fr) 2018-06-08 2018-06-08 Procédé de finissage d'un panneau de construction de grand format

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP21174458.6A Division EP3885155B1 (fr) 2018-06-08 2018-06-08 Procédé de finition d'une plaque de construction grand format fournie

Publications (2)

Publication Number Publication Date
EP3578385A1 true EP3578385A1 (fr) 2019-12-11
EP3578385B1 EP3578385B1 (fr) 2021-05-26

Family

ID=62712757

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21174458.6A Active EP3885155B1 (fr) 2018-06-08 2018-06-08 Procédé de finition d'une plaque de construction grand format fournie
EP18176816.9A Active EP3578385B1 (fr) 2018-06-08 2018-06-08 Procédé de finissage d'un panneau de construction de grand format

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21174458.6A Active EP3885155B1 (fr) 2018-06-08 2018-06-08 Procédé de finition d'une plaque de construction grand format fournie

Country Status (8)

Country Link
US (1) US11156004B2 (fr)
EP (2) EP3885155B1 (fr)
CN (1) CN112423995B (fr)
ES (2) ES2971683T3 (fr)
PL (2) PL3578385T3 (fr)
PT (1) PT3578385T (fr)
RU (1) RU2757241C1 (fr)
WO (1) WO2019233652A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579767A (en) * 1983-08-30 1986-04-01 Abitibi-Price Corporation Simulated ceramic tile
EP1820640B1 (fr) 2006-02-21 2010-05-26 Flooring Technologies Ltd. Procédé d'amélioration d'un panneau de construction
DE102014010747A1 (de) * 2014-07-23 2016-01-28 Flooring Technologies Ltd. Verfahren zur Herstellung von Bauplatten, insbesondere Fußbodenpaneelen
EP3059020A1 (fr) * 2015-02-23 2016-08-24 Flooring Technologies Ltd. Procédé de fabrication d'une plaque en dérivé de bois, notamment d'une plaque en dérivé de bois dotée d'une couche décorative
WO2016180643A1 (fr) * 2015-05-11 2016-11-17 Fritz Egger Gmbh & Co. Og Procédé de fabrication de panneaux comportant des évidements
EP3023261B1 (fr) 2014-11-20 2017-03-15 Flooring Technologies Ltd. Procédé d'affinement d'une plaque en bois
WO2017164806A1 (fr) * 2016-03-24 2017-09-28 Välinge Innovation AB Procédé pour former un décor sur un substrat

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE516696C2 (sv) * 1999-12-23 2002-02-12 Perstorp Flooring Ab Förfarande för framställning av ytelement vilka innefattar ett övre dekorativt skikt samt ytelement framställda enlit förfarandet
DE10341172B4 (de) * 2003-09-06 2009-07-23 Kronotec Ag Verfahren zum Versiegeln einer Bauplatte
DE102008012220A1 (de) * 2008-03-03 2009-09-17 Flooring Technologies Ltd. Verfahren und Vorrichtung zum Herstellen einer Holzwerkstoffplatte
CN101998896B (zh) * 2008-04-07 2014-12-10 瓦林格创新股份有限公司 具有薄的表面层的基于木质纤维的镶板
PL2730430T3 (pl) * 2012-11-12 2015-03-31 Flooring Technologies Ltd Sposób obróbki płyty z tworzywa drzewnego i płyta budowlana z rdzeniem tworzywa drzewnego
EP2905135A3 (fr) * 2014-02-05 2015-12-02 Dirk Dammers Procédé de fabrication d'un panneau
CN204435729U (zh) * 2014-12-24 2015-07-01 上海伊兆实业有限公司 一种装饰板

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579767A (en) * 1983-08-30 1986-04-01 Abitibi-Price Corporation Simulated ceramic tile
EP1820640B1 (fr) 2006-02-21 2010-05-26 Flooring Technologies Ltd. Procédé d'amélioration d'un panneau de construction
DE102014010747A1 (de) * 2014-07-23 2016-01-28 Flooring Technologies Ltd. Verfahren zur Herstellung von Bauplatten, insbesondere Fußbodenpaneelen
EP3023261B1 (fr) 2014-11-20 2017-03-15 Flooring Technologies Ltd. Procédé d'affinement d'une plaque en bois
EP3059020A1 (fr) * 2015-02-23 2016-08-24 Flooring Technologies Ltd. Procédé de fabrication d'une plaque en dérivé de bois, notamment d'une plaque en dérivé de bois dotée d'une couche décorative
WO2016180643A1 (fr) * 2015-05-11 2016-11-17 Fritz Egger Gmbh & Co. Og Procédé de fabrication de panneaux comportant des évidements
WO2017164806A1 (fr) * 2016-03-24 2017-09-28 Välinge Innovation AB Procédé pour former un décor sur un substrat

Also Published As

Publication number Publication date
ES2971683T3 (es) 2024-06-06
PL3885155T3 (pl) 2024-04-15
RU2757241C1 (ru) 2021-10-12
EP3885155C0 (fr) 2023-11-22
EP3578385B1 (fr) 2021-05-26
WO2019233652A1 (fr) 2019-12-12
PL3578385T3 (pl) 2021-12-27
CN112423995B (zh) 2021-12-07
US20210230880A1 (en) 2021-07-29
US11156004B2 (en) 2021-10-26
ES2882709T3 (es) 2021-12-02
PT3578385T (pt) 2021-08-19
CN112423995A (zh) 2021-02-26
EP3885155B1 (fr) 2023-11-22
EP3885155A1 (fr) 2021-09-29

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