PT2105320E - Decorative finishing a composite wooden panel - Google Patents

Decorative finishing a composite wooden panel Download PDF

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Publication number
PT2105320E
PT2105320E PT90051418T PT09005141T PT2105320E PT 2105320 E PT2105320 E PT 2105320E PT 90051418 T PT90051418 T PT 90051418T PT 09005141 T PT09005141 T PT 09005141T PT 2105320 E PT2105320 E PT 2105320E
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PT
Portugal
Prior art keywords
panel
layer
wood
sealing layer
decoration
Prior art date
Application number
PT90051418T
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Portuguese (pt)
Inventor
Frank Oldorff
Original Assignee
Flooring Technologies Ltd
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Application filed by Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Publication of PT2105320E publication Critical patent/PT2105320E/en

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B27N7/005—Coating boards, e.g. with a finishing or decorating layer
    • 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
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
    • E04F2290/043—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a bottom layer for sound insulation

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Finishing Walls (AREA)

Abstract

A method for finishing wood-based panels, especially MDF or HDF panels, involves sealing with melamine resin and printing a pattern directly onto the sealing layer before adding a protective layer of melamine resin and hot-pressing as usual. A method for finishing sheets of wood or timber products, especially MDF or HDF sheet, involves (a) coating the top of the sheet with a sealing layer (A) of melamine resin, (b) printing a pattern onto the sealing layer, (c) coating the pattern with a protective layer (B) of melamine resin and (d) pressing the sheet at elevated temperature until layers (A) and (B) melt and bond together with the printed pattern between them. An independent claim is also included for timber sheeting, especially HDF or MDF flooring panels with a wood or tile pattern, in which the base panel is coated with a sealing layer which is then printed with a pattern and provided with protective anti-wear coating(s).

Description

ΕΡ 2 105 320/ΡΤΕΡ 2 105 320 / ΡΤ

DESCRIÇÃO "Acabamento decorativo de um painel de material derivado de madeira" 0 invento refere-se a um processo para acabamento de um painel de material derivado de madeira, em particular, de um painel MDF ou HDF com uma face superior e uma face inferior. Estes painéis são utilizados, por exemplo, no fabrico de mobiliário. A partir dos mesmos podem também ser produzidos painéis, em particular, painéis para soalhos.DESCRIPTION " Decorative finish of a panel of wood-derived material " The invention relates to a process for finishing a panel of wood-derived material, in particular an MDF or HDF panel having an upper face and a lower face. These panels are used, for example, in the manufacture of furniture. From there panels can also be produced, in particular, floor panels.

Os painéis para soalhos com um painel de suporte de um material derivado de madeira são designados normalmente como painéis laminados e existem há muitos anos no mercado para substituição do parquet. A decoração pretendida (parquet, raiado de madeira, ladrilhos) é impressa numa banda de papel que então é revestida com resina e é enrolada num rolo ou é empilhada como material em folha. A banda de papel previamente produzida desse modo é colocada sobre o painel de suporte pelo fabricante do soalho e comprimida. Através da impressão da decoração na banda de papel, a subsequente selagem da banda de papel com resina sintética e a subsequente união da camada decorativa ao painel de suporte através de pressão e temperatura, são alteradas as dimensões a banda de papel. É dito pelo especialista que o papel cresce. 0 papel cresce tanto em comprimento (crescimento do comprimento), como também em largura (crescimento da largura). Se este painel decorativo for agora cortado à medida para originar a painéis individuais, tem que ser tomado em consideração o crescimento tanto no comprimento e na largura, visto que, caso contrário, verificar-se-ia uma distribuição irregular da decoração pelos painéis individuais. A consequência disto seria que o soalho composto por uma camada decorativa distribuída irregularmente nas arestas de união dos painéis apresentaria falhas de decoração. Mesmo que estas falhas de decoração tenham apenas alguns milímetros, as mesmas tornar-se-iam notadas por uma observação, o que influência negativamente o aspecto estético e, com ele, a diminuição da qualidade do soalho aplicado. 2 ΕΡ 2 105 320/ΡΤ A fim de produzir com qualidade de nivel aceitável, tem que ser determinado qual o crescimento do papel e a serra, que vai serrar devidamente o painel a partir de placa de suporte, tem que ser afinada em conformidade. Uma afinação manual obriga a uma grande perda de tempo. Em DE 100 19 054 Cl é descrito um processo para o corte à medida de painéis a partir de um painel de suporte, com o qual a serra pode ser adaptada automaticamente de acordo com o crescimento do papel. Para esta finalidade são necessárias câmaras que determinam a posição real de um padrão definido de pontos de decoração. A posição real é, então, comparada com a posição teórica e são determinados os desvios das medidas de largura ou de comprimento, de modo que a serra pode, então ser afinada em conformidade.Floor panels with a support panel of a derived wood material are commonly referred to as laminated panels and have been available for many years in the market for parquet replacement. The desired decoration (parquet, wood railing, tiles) is printed on a paper band which is then coated with resin and rolled onto a roll or stacked as sheet material. The paper web previously produced in this way is placed on the support panel by the floor manufacturer and compressed. By printing the decoration on the paper web, subsequent sealing of the paper web with synthetic resin and subsequent joining of the decorative layer to the backing panel by pressure and temperature, the dimensions of the paper web are changed. It is said by the expert that paper grows. The paper grows in both length (length growth) and width (width growth). If this decorative panel is now cut to size to give the individual panels, growth in both length and width has to be taken into account, otherwise an irregular distribution of the decoration by the individual panels will occur. The consequence of this would be that the floor composed by a decorative layer distributed irregularly in the union edges of the panels would present decoration flaws. Even if these decorative faults are only a few millimeters, they would be noticed by an observation, which negatively influences the aesthetic aspect and, with it, the quality of the floor applied. 2 ΕΡ 2 105 320 / ΡΤ In order to produce with acceptable level quality, paper growth has to be determined and the saw, which will properly saw the panel from the backing plate, has to be tuned accordingly. Manual tuning requires a great deal of time. DE 100 19 054 Cl discloses a method for customizing panels from a support panel, with which the saw can be adapted automatically according to the growth of the paper. For this purpose chambers are required which determine the actual position of a defined pattern of decoration points. The actual position is then compared with the theoretical position and the deviations of the width or length measurements are determined so that the saw can then be tuned accordingly.

Para optimizar o corte à medida tem, portanto, que ser realizado um trabalho com maior dispêndio de tempo, que encarece a produção de painéis de elevada qualidade. Para se ajustar melhor o aspecto visual de um painel laminado ao aspecto visual de um painel de madeira natural, na prensa, na qual a camada decorativa é comprimida com o painel de suporte, pode ser prevista uma matriz que apresenta um relevo que estampa um relevo correspondente ao raiado da madeira na camada de resina sintética. Uma vez que o crescimento do papel não é reprodutível, também não é possível aplicar o relevo completamente coincidente com a decoração. As juntas de uma superfície de ladrilhos não podem ser estampadas na superfície, uma vez que os desvios seriam aqui imediatamente visíveis.In order to optimize the custom cut, therefore, a more time-consuming work has to be carried out, which increases the production of high-quality panels. In order to better adjust the visual appearance of a laminate panel to the visual appearance of a natural wood panel, in the press, in which the decorative layer is compressed with the backing panel, a die may be provided which has a relief embossing a relief corresponding to the scratching of the wood in the synthetic resin layer. Since the growth of the paper is not reproducible, it is also not possible to apply the relief completely coincident with the decoration. The joints of a tile surface can not be stamped on the surface, since the deviations would be immediately visible here.

Em DE 195 32 819 AI é apresentado um processo para a produção de um painel de material derivado de madeira com uma superfície de configuração óptica, na qual são aplicadas no painel de material derivado de madeira sucessivamente uma coloração de base, uma selagem, uma impressão de base e uma impressão decorativa. A impressão decorativa é constituída por uma coloração de base ou por um primário de uma selagem de verniz e por verniz de superfície. Por meio de cilindros de rotogravura pode, na impressão de base, ser aplicada uma impressão decorativa, por exemplo, numa impressão a duas cores. Nesta impressão pode, para finalizar, ser aplicado um verniz de acrilato de UV, o qual pode ser curado por luz UV. 3DE 195 32 819 AI discloses a process for the production of a panel of wood-derived material having an optical configuration surface, in which a base color, a seal, a printing and a decorative print. The decorative impression consists of a base color or a primer of a varnish seal and surface varnish. By means of rotogravure cylinders, in the base printing, a decorative printing can be applied, for example, in a two-color printing. In this printing, a UV acrylate varnish may be applied, which can be cured by UV light. 3

ΕΡ 2 105 320/PTΕΡ 2 105 320 / PT

Em DE 199 41 300 AI é descrito um painel de material prensado com um núcleo em madeira e/ou fibras de celulose que é impregnado com uma resina de formaldeido curável por calor. Sobre este painel de material prensado podem ser aplicadas uma camada decorativa de uma película de plástico, papel ou madeira e/ou uma camada de verniz em ambas as faces. Além disso, as camadas decorativas podem também ser formadas a partir de uma resina acrílica reticulada, de uretano, epóxida ou de melamina que contêm um aditivo ou um corante.DE 199 41 300 AI discloses a panel of pressed material having a core of wood and / or cellulose fibers which is impregnated with a heat curable formaldehyde resin. On this panel of pressed material a decorative layer of a plastic film, paper or wood and / or a layer of varnish on both faces can be applied. In addition, the decorative layers may also be formed from a cross-linked acrylic resin, urethane, epoxide or melamine containing an additive or a colorant.

Em ΕΡ 1 026 008 A2 é revelado um revestimento ("Overlay"), um processo para produção de um revestimento e um processo para produção de um laminado de camadas múltiplas, no qual são aplicados uma camada de suporte e camadas de coloração de padrões da face inferior em impressão invertida. Como uma camada de suporte pode, neste caso, ser aplicado um papel impregnado com resina de melamina, o qual é comprimido com o laminado.In WO 01 026 008 A2 there is disclosed a coating (" Overlay "), a process for producing a coating and a process for producing a multilayer laminate in which a backing layer and layers of coloring patterns of the underside in reverse printing. As a backing layer, in this case a paper impregnated with melamine resin, which is compressed with the laminate, can be applied.

Em DE 197 51 115 AI é apresentado um processo para revestimento de, por exemplo, um painel, na superfície do qual é aplicada, pelo menos, uma camada de tinta por meio de um processo de impressão, em especial, por meio de serigrafia. Neste caso, a superfície pode ser deixada sem tratamento, lixada ou previamente tratada, em particular, envernizada. Para terminar, a camada de tinta aplicada pode ser coberta por um revestimento de verniz transparente.DE 197 51 115 AI discloses a process for coating, for example, a panel on the surface of which is applied at least one layer of paint by means of a printing process, in particular by means of screen printing. In this case, the surface may be left untreated, sanded or pretreated, in particular varnished. Finally, the applied paint layer may be covered by a clear lacquer coating.

Partindo deste problema, deve ser indicado um processo para acabamento de um painel de material derivado de madeira, com o qual, são evitados os problemas descritos atrás. A solução do problema realizada por um painel de material derivado de madeira que compreende os seguintes passos: a) aplicação de uma camada de selagem de resina de melamina ou resina de ureia na face superior do painel, b) impressão de uma decoração, a qual apresenta cores resistentes ao calor, formada, de preferência por cores resistentes ao calor, sobre a camada de selagem, 4 ΕΡ 2 105 320/ΡΤ c) aplicação de uma camada de protecçao de resina de melamina sobre a decoração, d) prensagem do painel sob efeito de temperatura, até a camada de protecção e a camada de selagem se fundirem e se ligarem entre si com a inclusão da decoração impressa, e) produção de reentrâncias na camada de protecção durante a prensagem, através da utilização de um painel de pressão que apresenta um relevo correspondente à decoração.Starting from this problem, a process for finishing a panel of wood-derived material should be indicated, with which the above-described problems are avoided. The solution of the problem is achieved by a panel of wood-derived material comprising the following steps: a) applying a melamine resin or urea resin sealing layer to the top face of the panel, b) printing a decoration, which exhibits heat-resistant colors formed, preferably by heat-resistant colors, on the sealing layer, 4 ΕΡ 2 105 320 / ΡΤ c) application of a protective layer of melamine resin on the decoration, d) pressing of the panel under temperature effect, until the protective layer and the sealing layer merge and bond together with the inclusion of the printed decoration, e) production of recesses in the protective layer during pressing, by the use of a pressure panel which has a decoration corresponding to the decoration.

Uma vez que a decoração é impressa no painel, é evitada não apenas os problemas relacionados com o crescimento do papel, mas também o manuseamento relacionado com a colocação da banda de papel na face superior do painel. Através da aplicação da camada de selagem no painel de suporte evita-se que a tinta de impressão seja absorvida pelo painel de suporte, o que seria o caso sem a camada de selagem, porque o painel de suporte, como tal, é absorvente. Através da camada de selagem a tinta decorativa é mantida e fixa, de modo que a camada decorativa se mantém na superfície e forma uma decoração de precisão clara e bem definida. A camada de protecção de resina de melamina substitui o conhecido revestimento, que nos processos de acabamento conhecidos é aplicado no papel decorativo. Por meio da prensagem sob efeito de temperatura até a camada de protecção e a camada de selagem se fundirem, a decoração é absorvida e a camada de selagem e a camada de protecção dão origem a um compósito. Com o auxilio da placa de pressão pode ser regulado o nível de brilho da superfície. Se for utilizada uma placa de pressão polida, é conseguida uma superfície de brilho elevado.Since the decoration is printed on the panel, not only the problems related to paper growth but also the handling related to the placement of the paper web on the top face of the panel is avoided. By applying the sealing layer on the backing panel it is avoided that the printing ink is absorbed by the backing panel, which would be the case without the sealing layer, because the backing panel as such is absorbent. Through the sealing layer the decorative paint is maintained and fixed so that the decorative layer remains on the surface and forms a clear and well defined decoration. The melamine resin backing layer replaces the known coating, which in the known finishing processes is applied to the decorative paper. By pressing under temperature until the protective layer and the sealing layer melt, the decoration is absorbed and the sealing layer and the protective layer give rise to a composite. With the aid of the pressure plate can be adjusted the level of brightness of the surface. If a polished pressure plate is used, a high gloss surface is achieved.

Deste modo, durante a prensagem a decoração ou a camada de tinta não derretem ou não sofrem alterações nas cores, tem que ser utilizada uma correspondente tinta resistente à temperatura ou um verniz resistente à temperatura. 5Thus, during pressing the decoration or the paint layer does not melt or does not change color, a corresponding temperature-resistant paint or a temperature-resistant lacquer must be used. 5

ΕΡ 2 105 320/PTΕΡ 2 105 320 / PT

De preferência, o acabamento do painel é ainda feito pelos passos: f) aplicação de uma camada de resina de melamina na face inferior do painel, g) prensagem do painel sob efeito de temperatura, até a camada de resina de melamina se fundir e se ligar ao painel.Preferably, the panel finish is further made by the steps: f) applying a layer of melamine resin on the underside of the panel, g) pressing the panel under temperature effect until the melamine resin layer melts and connect to the panel.

De preferência, o acabamento do painel pode ser também feito pelos passos: f) aplicação de uma camada de selagem de resina de melamina na face inferior do painel; g) aplicação de uma camada de tinta, que apresenta cores resistentes ao calor, sobre a camada de selagem, h) aplicação de uma camada de protecção de resina de melamina sobre a camada de tinta, i) prensagem do painel sob efeito de temperatura, até a camada de protecção e a camada de selagem se fundirem e se ligarem conjuntamente incluindo a camada de tinta.Preferably, the panel finish may also be made by the steps: f) applying a melamine resin sealing layer to the underside of the panel; g) applying a layer of paint having heat-resistant colors on the sealing layer, h) applying a protective layer of melamine resin to the paint layer, i) pressing the panel under the effect of temperature, until the protective layer and the sealing layer merge and bond together including the paint layer.

Por meio destes passos é substituída a viga principal normal num painel de laminado. As espessuras individuais das camadas são semelhantes às da face superior, de modo que é excluída uma deformação do painel. É, em particular, vantajoso que o acabamento da face superior e da face inferior seja feito simultaneamente, o que reduz o tempo de produção. O acabamento do painel pode processar-se de modo contínuo, em que se utiliza, de preferência, uma prensa contínua. Deste modo é reduzido o tempo de produção, o que baixa os custos de produção.By these steps the normal main beam is replaced in a laminate panel. The individual thicknesses of the layers are similar to those of the top face, so that a deformation of the panel is excluded. It is in particular advantageous that the finishing of the upper face and the lower face is done simultaneously, which reduces the time of production. The finish of the panel may be continuously processed, whereby a continuous press is preferably used. This reduces production time, which lowers production costs.

As camadas de selagem e/ou as camadas de protecção são aplicadas, de preferência, em várias camadas individuais, em 6 ΕΡ 2 105 320/ΡΤ que cada camada individual seca antes da aplicaçao da camada seguinte. As camadas individuais têm, respectivamente, um peso superficial de 10-40 g/m2. A camada de selagem é, de preferência, formada por duas camadas individuais; a camada de protecção, por quatro camadas individuais. Também a tinta de impressão pode ser aplicada em várias camadas.The sealing layers and / or the protective layers are preferably applied in several individual layers at 6 Å 2 105 320 / ΡΤ each individual layer dries before the next layer is applied. The individual layers have, respectively, a surface weight of 10-40 g / m 2. The sealing layer is preferably formed of two individual layers; the protective layer, by four individual layers. Print ink can also be applied in several layers.

Para se obter uma superfície lisa, é preferido, que o painel seja lixado, antes de ser aplicada a primeira camada individual da camada de selagem. Pelo menos numa camada individual da camada de protecção é misturado ou espalhado corindo para aumentar a resistência ao desgaste. Também na camada de protecção podem ser misturados ou espalhados aditivos anti-bacterianos e/ou anti-estáticos. Isto pode acontecer na mesma ou noutra camada individual. De preferência, todas as camadas individuais são tratadas em conformidade. Na camada de selagem e/ou na camada de protecção podem ser aplicados materiais de enchimento. Como material de enchimento são considerados fibras de madeira, pós de madeira, metais, materiais minerais (argila, areia), materiais sintéticos, celulose ou cinza). Sobre os materiais de enchimento pode ser conseguida uma estrutura que é aplicada de forma correspondente à decoração, pelo que se podem produzir relevos de filigrana.To obtain a smooth surface, it is preferred that the panel be sanded prior to the first individual layer of the sealing layer being applied. At least one individual layer of the protective layer is mixed or scattered corundum to increase the wear resistance. Antibacterial and / or anti-static additives may also be mixed or dispersed in the protective layer. This can happen on the same or another individual layer. Preferably, all individual layers are treated accordingly. Filling materials may be applied to the sealing layer and / or the protective layer. As filler material are considered wood fibers, wood powders, metals, mineral materials (clay, sand), synthetic materials, cellulose or gray). A structure can be achieved on the filler materials which is applied in a manner corresponding to the decoration, whereby filigree reliefs can be produced.

Nas camadas individuais na face inferior os materiais de enchimento servem, por exemplo, para atenuação do ruído dos passos. O acabamento da face superior do painel pode também executado por sectores. O acabamento processa-se, de preferência, sobre uma face superior oposta em relação à superfície inclinada do painel. Para isso, podem ser estampadas várias juntas em V na face superior do painel.In the individual layers on the underside the filler materials serve, for example, to attenuate the noise of the steps. The finish of the top face of the panel can also be performed by sectors. The finishing process preferably takes place on an upper face opposite the inclined surface of the panel. For this, several V-joints can be stamped on the top panel face.

Depois do acabamento o painel é serrado centrado ao longo das juntas em V, de modo que se formam painéis individuais, cujas arestas laterais apresentam uma chanfro. Estes chanfros acentuam posteriormente a aparência de uma junta entre os painéis individuais de um soalho. 7 ΕΡ 2 105 320/ΡΤAfter finishing the panel is sawn centered along the V-joints, so that individual panels are formed, the side edges of which have a chamfer. These chamfers later accentuate the appearance of a joint between the individual floor panels. 7 ΕΡ 2 105 320 / ΡΤ

Uma vez que não são utilizadas camadas de papel, os painéis não são sujeitos a deformação, a qual poderia verificar-se através do esforço de tracção do próprio papel. Devido às camadas finas podem ser efectuados tempos de processamento mais curtos. Os materiais de enchimento aplicados nas camadas individuais na face inferior do painel podem ser previstos para atenuação do ruido dos passos.Since no layers of paper are used, the panels are not subject to deformation, which could occur through the tensile stress of the paper itself. Due to the thin layers, shorter processing times can be achieved. The filler materials applied to the individual layers on the underside of the panel can be provided for attenuation of the noise of the steps.

Em vez de se o acabamento ser feito num painel de suporte em HDF ou MDF, podem também ser feito em painéis OSB ou painéis de aglomerado de madeira tradicionais com uma correspondente camada de cobertura finamente espalhada. É também viável formar a camada de selagem tão espessa, de modo a serem compensadas as irregularidades do painel (OSB).Instead of if the finish is done on a HDF or MDF support panel, they may also be made in traditional OSB panels or wood chipboards with a correspondingly thinly spread cover layer. It is also feasible to form the sealing layer so thick, so as to compensate for panel irregularities (OSB).

Os painéis podem ser utilizados não apenas como painéis para soalhos, mas também podem ser aplicadas na indústria de mobiliário.The panels can be used not only as floor panels but can also be applied in the furniture industry.

Num painel de material derivado de madeira, em particular, num painel para soalhos, formado por um painel de suporte HDF ou MDF, com uma face superior e uma face inferior, em que a face superior apresenta uma decoração, de preferência, uma decoração de madeira ou de ladrilhos, sendo aplicada ao painel de suporte uma camada de selagem, na qual uma decoração, que apresenta tintas resistentes ao calor e, de preferência, é formada por tintas resistentes ao calor, é impressa e em que a decoração é coberta com, pelo menos, uma camada de protecção contra desgaste, sendo a camada de selagem, de acordo com o invento, formada por resina de melamina ou resina de ureia.In a panel of wood-derived material, in particular, in a floor panel, formed by an HDF or MDF support panel, with an upper face and a lower face, wherein the upper face is preferably decorated with a decoration of wood or tile, the sealing layer being applied to the backing panel, wherein a decoration, which has heat-resistant inks and is preferably formed of heat-resistant inks, is printed and wherein the decoration is covered with , at least one wear protection layer, the sealing layer according to the invention being formed of melamine resin or urea resin.

Por meio da impressão de uma camada decorativa correspondente podem ser valorizadas madeiras baratas. Assim pode, por exemplo, num folheado de pinho ser impressa uma decoração de carvalho e realçada com o colorido correspondente. A placa de pressão está provida com um relevo correspondente à decoração. Durante a prensagem do painel são, então, produzidas reentrâncias na camada de protecção que, por exemplo, correspondem a um raiado de madeira ou a 8 ΕΡ 2 105 320/ΡΤ uma superfície de ladrilhos. Com isto a aparência da superfície adapta-se a uma superfície natural.By means of the printing of a corresponding decorative layer cheap woods can be valued. Thus, for example, a pine veneer can be printed with an oak decoration and highlighted with the corresponding color. The pressure plate is provided with a relief corresponding to the decoration. During pressing of the panel, there are then produced recesses in the protective layer which, for example, correspond to a sliver of wood or 8 Ρ Ρ 2 105 320 / ΡΤ a tile surface. In this way the surface appearance adapts to a natural surface.

De acordo com o invento a decoração é impressa directamente na camada de selagem. Para aumento da resistência ao desgaste podem ser aplicados na superfície meios de estrutura ou grãos de corindo. Os meios de estrutura ou os grãos de corindo podem também ser incorporados na camada de protecção contra desgaste. 0 painel de suporte pode ser alisada na face superior e/ou inferior, de preferência, lixada.According to the invention the decoration is printed directly on the sealing layer. To increase the wear resistance, structure means or corundum grains may be applied to the surface. The structure means or the corundum grains may also be incorporated into the wear protection layer. The support panel may be smoothed on the upper and / or lower face, preferably sanded.

Em particular, na camada de protecção podem ser gravadas juntas em V decorrentes no sentido longitudinal e/ou no sentido transversal. No tratamento subsequente são separados painéis por corte do painel, o qual é serrado centrado ao longo da junta em V. Deste modo, os painéis receberão uma aresta chanfrada.In particular, in the protective layer, longitudinally and / or transverse transverse V-joints can be engraved. In the subsequent treatment panels are separated by cutting the panel, which is sawn centered along the V-joint. In this way, the panels will receive a bevelled edge.

Lisboa, 2012-11-27Lisbon, 2012-06-22

Claims (14)

ΕΡ 2 105 320/ΡΤ 1/3 REIVINDICAÇÕES 1 - Processo para enriquecimento de um painel de madeira ou de material derivado de madeira, em particular, de um painel MDF ou HDF, com um uma face superior e uma face inferior, que compreende os seguintes passos: a) aplicação de uma camada de selagem de resina de melamina ou resina de ureia na face superior do painel, b) impressão de uma decoração, a qual apresenta cores resistentes ao calor, formada, de preferência, por cores resistentes ao calor, sobre a camada de selagem, c) aplicação de uma camada de protecção em resina de melamina sobre a decoração, d) prensagem do painel sob o efeito de temperatura, até a camada de protecção e a camada de selagem se fundirem e se ligarem entre si com a inclusão da decoração impressa, e) produção de reentrâncias na camada de protecção, durante a prensagem, através da utilização de um painel de pressão que apresenta um relevo correspondente à decoração.A method of enriching a panel of wood or a derived material of wood, in particular an MDF or HDF panel, having an upper face and a lower face, comprising the following steps: a) applying a melamine resin or urea resin sealing layer to the top face of the panel, b) printing a decoration, which exhibits heat resistant colors, preferably formed by heat resistant colors , on the sealing layer, c) applying a protective layer of melamine resin on the decoration, d) pressing the panel under the effect of temperature, until the protective layer and the sealing layer merge and bond between (e) producing recesses in the protective layer during pressing, by the use of a pressure panel which has a relief corresponding to the decoration. 2 - Processo de acordo com a reivindicação 1, caracterizado, por compreender os seguintes passos de: f) aplicação de, pelo menos, uma camada de resina de melamina na face inferior do painel, g) prensagem do painel sob efeito de temperatura, até a camada de resina de melamina se fundir e se ligar ao painel,Process according to claim 1, characterized in that it comprises the following steps of: f) applying at least one layer of melamine resin on the underside of the panel, g) pressing the panel under temperature, until the melamine resin layer melts and attaches to the panel, 3 - Processo de acordo com a reivindicação 1, caracterizado por compreender os seguintes passos de: f) aplicação de uma camada de selagem de resina de melamina na face inferior do painel, ΕΡ 2 105 320/ΡΤ 2/3 g) aplicaçao de uma camada de tinta, que apresenta cores resistentes ao calor, sobre a camada de selagem, h) aplicação de uma camada de protecção de resina de melamina sobre a camada de tinta, i) prensagem do painel sob efeito de temperatura, até a camada de protecção e a camada de selagem se fundirem e se ligarem entre si com a inclusão da camada de tinta,Process according to Claim 1, characterized in that it comprises the following steps of: f) applying a melamine resin sealing layer to the lower face of the panel, ε 2 105 320 / ΡΤ 2/3 g) applying a the ink layer having heat-resistant colors on the sealing layer, h) applying a protective layer of melamine resin on the paint layer, i) pressing the panel under temperature effect, to the protective layer and the sealing layer merge and bond together with the ink layer, 4 - Processo de acordo com a reivindicação 1, caracterizado por a decoração impressa ser um raiado de madeira ou uma superfície de ladrilhos, ao qual correspondem as reentrâncias.A method according to claim 1, characterized in that the printed decoration is a wood railing or a tile surface, to which the recesses correspond. 5 - Processo de acordo com uma das reivindicações 1 a 3, caracterizado por serem aplicadas várias camadas individuais para a camada de selagem e/ou para a camada de protecção e cada camada individual secar antes da aplicação da camada seguinte.Process according to one of Claims 1 to 3, characterized in that several individual layers are applied to the sealing layer and / or the protective layer and each individual layer is dried before the application of the next layer. 6 - Processo de acordo com a reivindicação 1, caracterizado por na camada de protecção serem misturados como, pelo menos, outros componentes, corindo e ou celulose.A process as claimed in claim 1, characterized in that the protective layer is mixed with at least other components such as corundum and / or cellulose. 7 - Processo de acordo com uma ou várias das reivindicações anteriores, caracterizado por na camada de selagem e/ou na camada de protecção ser colocado, pelo menos, material de enchimento.Process according to one or more of the preceding claims, characterized in that at least the filling material is placed in the sealing layer and / or in the protective layer. 8 - Processo de acordo com a reivindicação 7, caracterizado por serem utilizados fibras de madeira, pós de madeira, de metais, de materiais minerais, plásticos, celulose ou cinza como materiais de enchimento.A method according to claim 7, characterized in that wood fibers, wood powders, metals, mineral materials, plastics, cellulose or gray are used as fillers. 9 - Placa de material derivado de madeira, formada por um painel de suporte, com uma face superior e uma face inferior, em que a face superior do painel de suporte apresenta uma camada de selagem, sobre a qual é impressa uma decoração, a qual apresenta cores resistentes ao calor, que consiste, de preferência, em cores resistentes ao calor, e em que a decoração está coberta com, pelo menos, uma camada de ΕΡ 2 105 320/PT 3/3 protecção em resina de melamina, caracterizado por a camada de selagem ser formada por resina de melamina ou resina de ureia e a camada de protecção apresentar reentrâncias que correspondem com a decoração.A board of wood-derived material, formed by a support panel, having an upper face and a lower face, wherein the upper face of the support panel has a sealing layer on which is printed a decoration, which exhibits heat-resistant colors, which preferably consists of heat-resistant colors, and wherein the decoration is covered with at least one layer of melamine resin protection, characterized in that the sealing layer is formed of melamine resin or urea resin and the protective layer has recesses corresponding to the decoration. 10 - Painel de material derivado de madeira de acordo com a reivindicação 9, caracterizado por a decoração ser impressa directamente sobre a camada de selagem.A panel of wood-derived material according to claim 9, characterized in that the decoration is printed directly on the sealing layer. 11 - Painel de material derivado de madeira de acordo com a reivindicação 9 ou 10, caracterizado por a camada de protecção apresentar o corindo e a celulose como, pelo menos, outros componentes.The panel of wood-derived material according to claim 9 or 10, characterized in that the protective layer shows the corundum and the cellulose as at least other components. 12 - Painel de material derivado de madeira de acordo com uma das reivindicações 9 a 11, caracterizado por o painel de suporte consistir em material OSB com uma fina camada de cobertura de material de aglomerado de madeira, MDF ou HDF.A panel of wood-derived material according to one of claims 9 to 11, characterized in that the support panel consists of OSB material with a thin cover layer of wood chipboard, MDF or HDF. 13 - Painel de material derivado de madeira de acordo com uma das reivindicações 9 a 12, caracterizado por o painel de suporte ser alisado e/ou lixado na face superior e/ou inferior.Panel of wood-derived material according to one of claims 9 to 12, characterized in that the support panel is smoothed and / or sanded on the upper and / or lower face. 14 - Painel de material derivado de madeira de acordo com uma das reivindicações 9 a 13, caracterizado por as reentrâncias corresponderem a um raiado de madeira ou a uma superfície de ladrilhos. Lisboa, 2012-11-27Panel of wood-derived material according to one of Claims 9 to 13, characterized in that the recesses correspond to a wood beam or to a tile surface. Lisbon, 2012-06-22
PT90051418T 2003-03-06 2003-09-06 Decorative finishing a composite wooden panel PT2105320E (en)

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