EP3351682A1 - Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche - Google Patents

Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche Download PDF

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Publication number
EP3351682A1
EP3351682A1 EP18158052.3A EP18158052A EP3351682A1 EP 3351682 A1 EP3351682 A1 EP 3351682A1 EP 18158052 A EP18158052 A EP 18158052A EP 3351682 A1 EP3351682 A1 EP 3351682A1
Authority
EP
European Patent Office
Prior art keywords
laminate
fibers
paper
synthetic resin
lacquer layer
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
EP18158052.3A
Other languages
German (de)
English (en)
Other versions
EP3351682B1 (fr
Inventor
Roger Braun
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.)
Swiss Krono Tec AG
Original Assignee
Swiss Krono Tec AG
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 Swiss Krono Tec AG filed Critical Swiss Krono Tec AG
Priority to ES18158052T priority Critical patent/ES2776904T3/es
Priority to PT181580523T priority patent/PT3351682T/pt
Priority to EP18158052.3A priority patent/EP3351682B1/fr
Priority to PL18158052T priority patent/PL3351682T3/pl
Publication of EP3351682A1 publication Critical patent/EP3351682A1/fr
Application granted granted Critical
Publication of EP3351682B1 publication Critical patent/EP3351682B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • 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
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/48—Condensation polymers of aldehydes or ketones with phenols
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
    • D21H17/51—Triazines, e.g. melamine
    • 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
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H19/72—Coated paper characterised by the paper substrate
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
    • D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures

Definitions

  • the invention relates to a laminate for coating a plate-shaped wood material and to a method for producing the laminate.
  • Laminated surfaces are produced in a press that chemically cures a synthetic resin layer, often in the form of a resin impregnated paper, on the surface of the wood material under the influence of pressure and temperature.
  • the lamination is carried out by fixing a film, which may be coated or a laminate with adhesive on the surface of a plate-shaped wood material.
  • the laminate according to the invention is a paper web impregnated with synthetic resin, which has a lacquer layer.
  • the lacquer layer is applied to one side of the laminate, hereinafter referred to as the top of the laminate.
  • the opposite side of the laminate, the underside is after application to a wood-based panel on the surface of the wood-based panel.
  • the underside of the laminate is preferably applied with adhesive on the surface of the wood-based panel.
  • the laminate can be made from one or more paper webs, often the laminate consists of multilayer paper webs, typically two to four layers.
  • the laminate used according to the invention is a single-layer or multi-layer, resin-impregnated paper webs, which are also known as Continuous Pressed Laminates (CPL) or High Pressure Laminates (HPL).
  • CPL and HPL may comprise a single paper web which has been impregnated with synthetic resin which has subsequently been cured.
  • CPL and HPL consist of several layers of paper, usually of different quality and weight.
  • a strong kraft paper is used as the backing paper on which a thin, colored or frequently printed decorative paper is placed.
  • the decorative paper can be covered by a very thin paper, the overlay paper, which appears transparent and therefore leaves the decorative paper visible.
  • a so-called underlay paper between kraft paper and decorative paper can be used.
  • Each of these papers is impregnated with synthetic resin.
  • the paper is combined with synthetic resin to form a laminate and pressed at temperatures of about 150 ° C. to 180 ° C. either continuously in a double belt press (CPL) or in individual sheets in a platen press to form a laminate (HPL) in which one or more paper webs impregnated with cured plastic are.
  • CPL double belt press
  • HPL laminate
  • the lacquer is applied in liquid form to the top side of the laminate, preferably in an amount between 5 g / m 2 and 300 g / m 2 , typically in an amount of 25 g / m 2 to 70 g / m 2 , particularly preferably between 30 g / m 2 and 60 g / m 2 if the surface is to be high-gloss or mirror-like.
  • the aim is to minimize the amount of paint applied to save material.
  • sufficient paint must be applied in order to obtain a flat surface and, if necessary, to be able to introduce structures into the paint.
  • a thin lacquer layer may likewise suffice.
  • the lacquer layers can be wet-on-wet or cured individually, but the structures can preferably be embossed in non-lacquer or not yet fully cured lacquer.
  • a supermatte surface is additionally provided with depressions of up to 150 microns to produce profiled fantasy decors or natural designs with a super matt surface or an anti-fingerprint surface, both a mostly colored decor as well as a mostly three-dimensional structure on the surface exhibit.
  • a particular advantage is that neither the surface of the laminate nor the lacquer layer must be ground before working the lacquer layer.
  • the laminate according to the invention with lacquer layer is thus to produce with extremely little effort at the same time extremely high quality surface of the lacquer layer.
  • UV-light and radiation-curing lacquers usually based on acrylate. Typically, it may be pure acrylates or modified acrylates, for. As acrylates modified with urethanes, epoxies, polyesters or silicon compounds.
  • the paint is applied in liquid form.
  • the paints can be applied in any desired manner, preferably by rolling, but also by casting or knife coating.
  • the surface of the paint layer after curing of the liquid Lacquer as a high-gloss, in particular mirror-glossy or reflective surface (with a degree of gloss of 90 GE or more) or as a super-matt surface (with a gloss of up to 15 GE) or as an anti-fingerprint surface.
  • the gloss levels are determined according to DIN EN ISO 2813, measured depending on the gloss level of the surface with a measuring angle of 20 ° (high gloss), 60 ° (glossy to semi-gloss) or 85 ° (matt).
  • the application of the paint results in an improved laminate with a high-quality surface.
  • the material thickness of the improved laminate is between 0.2 mm and 2 mm, typically between 0.5 mm and 1.5 mm. This laminate can still be rolled despite the applied paint layer.
  • the laminate coated according to the invention is also suitable for continuous processing.
  • the paint which is applied according to the invention on the top of the laminate, adheres well to the cured resin, in particular on a Aminoplastober Assembly. Nevertheless, it is not excluded that a bonding agent layer is applied to the synthetic resin in order to bond the paint layer particularly firmly to the synthetic resin.
  • a primer z. B. silane compounds are used as a primer z. B. silane compounds.
  • the paper of the laminate which is impregnated with synthetic resin, usually consists of cellulose fibers. It can generally be composed of natural and synthetic fibers. Apart from cellulose fibers, typical suitable fibers are also mineral fibers, glass fibers, viscose fibers, carbon fibers, metal fibers, but also fibers made of plastic, in particular aramid fibers.
  • a paper may also be constructed from a mixture of fibers, in particular a mixture of natural and synthetic fibers. The fibers are chosen for technical as well as economic reasons. Thus, cellulose fibers are inexpensive and usually of sufficient strength. Other fibers are of higher strength, e.g.
  • aramid fibers are more conductive (carbon and metal fibers) or they are even more transparent than cellulose fibers (plastic fibers, glass fibers, mineral fibers), so that even when using higher amounts of fiber remains a transparent appearance.
  • the paper preferably has a sheet weight of from 10 g / m 2 to 360 g / m 2 , the aim being to produce as light a paper as possible, e.g. B. 20 g / m 2 to 40 g / m 2 , to choose to save material.
  • the laminate may comprise a single paper web impregnated with synthetic resin. However, most of the laminate will have two or more paper webs. In general, usually a backing paper is used, which should have the highest possible strength. A decor paper should still be able to be dyed and / or printed with the least possible use of material either. An overlay paper should be as transparent as possible, an underlay paper used in some cases as material-saving as possible. According to a further preferred embodiment, the decor paper on its upper side on a decor, which is usually designed as a color print. The decor can be a fantasy decor or it can imitate a wood or stone surface. The decor can z. B. from a primer and one or more paint jobs, which are applied in sections on the primer and whose color differs from the color of the primer.
  • the synthetic resin or the mixtures of synthetic resins may contain hard material particles, eg. B. to improve the scratch resistance of the surface.
  • the paper or the synthetic resin can also conductive elements, for. As fibers or particles, which improve the conductivity of the coating. If an overlay is used, then hard-material particles, mostly corundum, but also salts are added to the synthetic resin with which the overlay is impregnated. Conductive particles or fibers can also be added to the synthetic resin with which the carrier paper or decorative paper or underlay is impregnated.
  • the paper according to the invention is impregnated with a synthetic resin.
  • suitable synthetic resins are melamine resin, urea-formaldehyde resin and phenol-formaldehyde resin.
  • polyurethane dispersions, water glass or silane compounds which are also referred to as synthetic resins in the context of this invention. Mixtures of these resins can also be used.
  • the paper web to be impregnated first with z. B. urea-formaldehyde resin to be impregnated and then one or both sides another resin, eg. B. melamine resin.
  • the synthetic resin or the mixture of synthetic resins may be used in an amount such that the surface of the paper has fibers and synthetic resin.
  • the paper or the fibers of the paper are completely embedded in paper, so that the surface of the resin-impregnated paper is completely made of synthetic resin.
  • synthetic resin about 80 wt .-% to 100 wt .-% of the weight of the paper used.
  • the laminate according to the invention can be produced as a continuous web by means of a double belt press (CPL) or in sheets in a platen press (HPL). Both methods are industrially customary and known.
  • CPL double belt press
  • HPL platen press
  • the laminate, both CPL and HPL, is impregnated with a synthetic resin which has cured.
  • the paper according to the invention differs from the paper which is used for laminating wood-based surfaces, and in which the synthetic resin is merely dried, but not cured.
  • the finished laminate has a flat, dense and hard surface, which can be applied without further coating on wood materials.
  • the surface of the laminate is readily equated with a ground lacquered surface, which is vorzuetiet for a high-gloss finish, but without consuming grinding operations are carried out.
  • the invention relates to a further treatment of such a laminate, in particular a finishing, which creates a more high-quality appearing surface.
  • the laminate is fixed according to an advantageous development on the surface of a plate-shaped wood material.
  • Typical wood-based materials are chipboard, fiberboard, plywood, blockboard, but also solid wood panels.
  • plate-shaped wooden materials that are used in furniture or high-quality interior design, can be coated with the laminate according to the invention. Since the resin is already cured, the laminate is fixed by gluing on the wood material surface.
  • a hot melt adhesive for.
  • a polyurethane adhesive or a polyvinyl acetate adhesive can be used.
  • the adhesive may either be applied to the wood material surface or the adhesive may be applied to the underside of the resin impregnated paper. Sticking or laminating of laminates on the surface of plate-shaped wood materials is state of the art.
  • the laminate according to the invention offers numerous advantages. On the one hand, an existing and technically mature product can be easily processed. On the other hand, the entire range of decors can be offered with further improved, especially high-gloss, mirror-finish or super matt surfaces, Alternatively also be offered with anti-fingerprint surfaces. In addition, a better product compared to polymer films is made available because the laminate according to the invention has a higher flexural strength and hardness. As a result, the laminate according to the invention can, on the one hand, be processed more simply because both individual sheets of the laminate and a rolled laminate are easier to lay and position than a flexible, soft film.
  • the stiffer, harder laminate according to the invention can also compensate for unevenness in the surface of the wood material better, without resulting in deformation of the top of the laminate, so that in particular in very high-gloss, especially high-gloss and mirror-glossy surfaces bumps on the surface of the Coating wood material does not spoil the optically high-quality impression of the laminate surface and lead to rejects.
  • the surface of the lacquered laminate is also more resistant than the surface of a lacquered polymer film.
  • the invention further relates to a method for producing a laminate for coating a plate-shaped wood material, comprising the steps of applying synthetic resin to a paper web, curing the synthetic resin, applying a lacquer, processing the lacquer surface and curing the lacquer.
  • the application of synthetic resin to a paper web results in the impregnation of the paper web, because the usually liquid synthetic resin penetrates the paper web.
  • the resin that impregnates the paper web is then cured, that is, it is, for. B. under the influence of temperature and / or pressure, for. B. triggered in a double belt press or in a platen press a chemical reaction by which the resin reacts to an inert, no longer reactive mass.
  • the curing may be preceded by a drying of the synthetic resin.
  • the cured, with Resin-impregnated paper has a significantly higher stiffness than the non-impregnated paper web and also a higher stiffness than a film, which is used for laminating wood-like board materials. Nevertheless, the laminate web can be rolled up without further ado. So it is well suited for continuous finishing and manufacturing processes.
  • liquid paint is applied.
  • the paint is advantageously applied to the entire surface of the paper web.
  • the lacquer coated side of the paper web is called the top.
  • the lacquer layer is applied from liquid lacquer with the most uniform possible layer thickness on the laminate.
  • an equalization of the lacquer layer can take place in an intermediate step.
  • the paint surface is processed, preferably before it has cured.
  • the processing takes place in the simplest case by a structure donor, usually a smooth or a structured material web, but also by a smooth or textured roller.
  • the surface that is to say the boundary surface of the lacquer layer, is specifically designed to the environment when the lacquer surface is processed. It is z. B. as much as possible smoothed by a smooth material web or roller or it is alternatively provided with a structured material web or roller with a matte, possibly super matt surface or with an anti-fingerprint surface.
  • the material web completes the surface of the lacquer layer from the environment; So it also keeps away oxygen.
  • the processing of the surface of the lacquer layer can be referred to in this embodiment as an inert process, because it happens under oxygen exclusion.
  • the paint is cured after application, in particular during or immediately after processing, preferably by UV radiation known per se or by electron beam curing.
  • the curing of the lacquer layer preferably takes place during the processing of the lacquer surface.
  • the hardening of the lacquer layer can preferably take place during the action of the material web or the roll; for example, according to a first alternative, a curing device, typically a UV light or electron radiation unit known per se, can be arranged opposite or immediately after the material web or the roll. If the coating surface is processed with a transparent laminate, then the curing device can be arranged on the same side as the laminate. Otherwise, the curing device is arranged according to a second alternative on the opposite side of the laminate. In this case, the material web is suitably transparent.
  • a material web of a polymer, possibly as a fiber-reinforced polymer web for processing paint surfaces is z. B. in the EP 2 146 805 B1 disclosed.
  • the material web can be smooth or structured. It is preferably transparent. It usually consists of a polymer film, if necessary, it is reinforced by fibers. A material web may be provided for a single use, but may also be used several times. The material web is usually as an endless web z. B. be available from a roll, but it is also possible to provide the web in sheets available. By placing and optionally pressing the material web onto the surface of the liquid lacquer layer, this surface is processed.
  • the material web can advantageously remain as a disposable material web on the lacquer layer and thus serve as protection against damage to the lacquer layer during storage and transport. Especially with high-gloss or mirror-glossy surfaces, this measure proves to be particularly valuable. Since the web is applied anyway for editing the surface on the paint layer, an additional benefit is developed with this measure without further costs or technical means.
  • the application of a lacquer layer on a laminate causes a special depth effect of the painted surface is achieved.
  • the resin in particular, if it is smoothed after impregnation of the paper, for example by the presses and thus usually also compacted, the lacquer layer provides a background that presents itself visually as a continuation of the lacquer layer and so conveys a special depth effect of the lacquer layer.
  • the flat surface of the laminate the by the pressing of the laminate during curing takes place, the production of reflective surfaces, the, approximately comparable to the precision of a mirror located in front of the surface objects reflect sharp contours, so ensure a largely parallel even after reflection beam path.
  • the solution of the invention requires few materials and is therefore environmentally friendly. It can be prepared with known manufacturing equipment and it is inexpensive, although the surface has a very high quality appearance.
  • Fig. 1 shows a continuous system 1, in which the laminate 2 is formed in immediately subsequent operations only by impregnation with liquid synthetic resin 3 and subsequent curing and then provided on one side with a lacquer layer 4.
  • the same process steps can also be carried out in separate installations, first impregnating with synthetic resin 3 and curing the synthetic resin, ie producing the known laminate, here a CPL, but alternatively also a high pressure laminate (HPL) and then separated from it , the invention essential application, processing and curing of the lacquer layer. 4
  • the plant in Fig. 1 is shown, from left to right in the direction of production, a roll 5 with base paper 6 with a sheet weight of 80 g / m 2 , which is rolled and passed over a roller 7 through a bath 8, in which there is liquid resin melamine resin 3.
  • the base paper 6 takes up 100% of the sheet weight of 80 g / m 2 of melamine resin.
  • the base paper 6 is optionally printed with a decor, z. B. with a wood decor or with a fantasy decor.
  • the melamine resin 3 penetrates into the base paper 6, so that a laminate 2 is formed. This process is also referred to as Beharzen.
  • the surface of the resin-impregnated paper may also consist of a mixture of fibers and synthetic resin.
  • the laminate is pressed in the double belt press 9, which is shown schematically with the upper strand 10 and the lower strand 11, at 160 ° C in about 20 seconds to form a laminate.
  • the double belt press may include means for cooling the laminate 2 which cool the cured laminate more rapidly.
  • a drying device may be arranged between the bath 8 and the double belt press 9, which removes excess liquid from the synthetic resin.
  • the laminate 2 according to Fig. 1 is transparent.
  • a multilayer laminate can be made comprising a 90 g / m 2 kraft paper (made from particularly strong kraft pulp) with phenol-formaldehyde resin (80% resin based on a kraft paper weight of 90 g / m 2 ).
  • m 2 is impregnated, brought together in a roller assembly and either as an endless belt in a double belt press to a multilayer CPL laminate or pressed Are pressed as sheets in a platen press to a HPL laminate.
  • the laminate is not only exceptionally smooth and hard after leaving the double belt or platen press but also very even. He can also be highly polished. It is thus perfectly suited to be coated with a uniform layer of varnish.
  • the impregnation with synthetic resin is followed, either directly or as a separate processing unit, by the application of a lacquer layer 4 to an upper side of the laminate 2.
  • the lacquer layer is applied to the upper side, which shows a decorative paper or an overlay paper.
  • the laminate 2 is guided past a roller assembly 12, which applies a liquid lacquer layer of 40 g / m 2 . Since the laminate 2 is very smooth and even, the liquid paint layer 4 can also be applied very evenly and just on the top.
  • An acrylic-based varnish which cures with UV light, is applied. Often also find modified acrylic paints use, for example, with urethane, epoxy or silicon compounds modified acrylic paints. The person skilled in the art knows which acrylic lacquers are available and he finds suitable lacquers with a few orientation experiments.
  • the surface 13 of the lacquer layer 4 is processed.
  • This is done by applying an endless web of material 16, which is applied in the width of the laminate to the surface 13 of the still liquid lacquer layer by rolling from a supply roll 14.
  • the web of material 16 is after passing a pinch roller 15 bubble-free on the surface 13 of the lacquer layer 4, so that the surface 13 of the lacquer layer is completely flat and smooth, in particular free of unwanted marks.
  • the surface 13 of the lacquer layer 4 is thereby not exposed to atmospheric oxygen, which is why this method step can also be referred to as an inert process.
  • UV lamps 17 act on the lacquer layer 4 through the transparent laminate 2 and harden it.
  • the lacquer layer 4 hardens from the laminate 2 to the surface 13 of the lacquer layer forth and is completed during the curing by the web 16, with the result that up to the surface 13, ie to the interface of the lacquer layer 4 to the web a uniform cross-linking or Cured. This results in a surface 13 with a gloss level of 90 GE or more.
  • the UV lamps 17 may also be arranged on the same side as the pinch roller 15.
  • the laminate 2 provided with the lacquer layer 4 is flat and provided with a mirror-like surface 13.
  • the endless material web 16 can optionally after hardening of the lacquer layer 4 either deducted immediately and z. B. be used again. Alternatively, the material web 16 remain on the cured lacquer layer 4 and protect the surface 13 of the lacquer layer 4, if necessary on the lamination on a wood-based panel out until the use of laminated with the coated laminate wood-based panel.
  • Fig. 2 shows a laminate 2 according to Fig. 1 with a paper web of fibers 19, which is impregnated with synthetic resin, here with melamine resin 3.
  • the melamine resin 3 completely penetrates the paper web with the fibers 19, so that the surface of the paper web is completely formed of melamine resin 3 on both sides. In other words, the melamine resin 3 protrudes on both sides of the paper web.
  • a lacquer layer 4 is applied which has an extremely smooth surface 13 and a mirror-finished surface with a gloss level of 90 GE or more.
  • the underside 21 of the laminate 2 may optionally be provided with a layer of adhesive (not shown here).
  • the laminate 2 is not immediately applied to a wood-based material surface, then it is advisable to cover such an adhesive layer with a release paper.
  • the lacquered, possibly provided with an adhesive layer and a release paper laminate can be rolled up for later use. As an alternative to rolling up, the lacquered, resin-impregnated laminate can also be cut into sheets, stacked and processed further.
  • the application of the inventively coated laminate 2 on the surface of a plate-shaped wood material is carried out in the same manner as with non-lacquered laminate, preferably by gluing.
  • unevenness in the surface of the wood-based material or grinding residues (dust grains) does not press through as with a coating with a soft film, but laminating results in a defect-free surface with far less scrap than in the case of a film lamination.
  • the wood-based material surface to be laminated with the laminate according to the invention requires simpler preparation because the laminate according to the invention substantially compensates for smaller unevennesses.
  • a wood-based material surface coated with the laminate 2 described above has a specular, alternatively high-gloss, supermatte or with a mirror-finish Anti-fingerprint structure surface provided with special depth effect, because the paint and resin combine in such a way that creates an overall very transparent coating on a very flat surface, which has an extremely high-quality appearance.
  • a transparent laminate for. Example, from a single, thin paper layer, which is impregnated with melamine resin, used with a paint layer applied thereto according to the invention, then such a laminate can be applied to a provided with a decor, z. B. printed wood material surface are laminated. Due to the high transparency of the lacquered laminate, the décor on the wood-based material surface has almost no optical restrictions.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP18158052.3A 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche Active EP3351682B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES18158052T ES2776904T3 (es) 2015-07-10 2015-07-10 Material laminado para recubrir un material derivado de la madera en forma de placa
PT181580523T PT3351682T (pt) 2015-07-10 2015-07-10 Material laminado para o revestimento de um material derivado da madeira na forma de painel
EP18158052.3A EP3351682B1 (fr) 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche
PL18158052T PL3351682T3 (pl) 2015-07-10 2015-07-10 Laminat do powlekania materiału drewnopochodnego w kształcie płyt

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18158052.3A EP3351682B1 (fr) 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche
EP15176330.7A EP3040476B1 (fr) 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP15176330.7A Division EP3040476B1 (fr) 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche
EP15176330.7A Division-Into EP3040476B1 (fr) 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche

Publications (2)

Publication Number Publication Date
EP3351682A1 true EP3351682A1 (fr) 2018-07-25
EP3351682B1 EP3351682B1 (fr) 2020-01-08

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EP18158052.3A Active EP3351682B1 (fr) 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche
EP15176330.7A Active EP3040476B1 (fr) 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche

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EP15176330.7A Active EP3040476B1 (fr) 2015-07-10 2015-07-10 Matiere en couche destine au revetement d'un materiau en bois en forme de plaque et procede de fabrication de la matiere en couche

Country Status (5)

Country Link
EP (2) EP3351682B1 (fr)
ES (2) ES2776904T3 (fr)
PL (2) PL3040476T3 (fr)
PT (2) PT3351682T (fr)
TR (1) TR201810382T4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3882041A1 (fr) * 2020-03-20 2021-09-22 Swiss Krono TEC AG Matière de revêtement pour surfaces de panneaux

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3774381A1 (fr) * 2018-03-29 2021-02-17 Swiss Krono TEC AG Plaque décorative pouvant être décapée
EP3546241A1 (fr) * 2018-03-29 2019-10-02 SWISS KRONO Tec AG Plaque décorative pouvant être décapée
EP3936559A1 (fr) * 2020-07-07 2022-01-12 Fritz Egger GmbH & Co. OG Matières pouvant être laquées et laquées à surfaces structurées

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013267A1 (fr) * 1978-12-22 1980-07-09 Österreichisches Forschungszentrum Seibersdorf Ges.m.b.H. Procédé de fabrication de produits stratifiés
WO2003008708A1 (fr) * 2001-07-14 2003-01-30 Technocell Dekor Gmbh & Co. Kg Preimpregne
WO2009000769A1 (fr) * 2007-06-28 2008-12-31 Technocell Dekor Gmbh & Co. Kg Préimprégné
EP2146805B1 (fr) 2007-04-30 2011-11-23 S.D. Warren Company Matériaux possédant une surface texturée et leurs procédés de production
WO2013167533A1 (fr) * 2012-05-10 2013-11-14 Surface Technologies Gmbh & Co. Kg Procédé de production d'une feuille à décor et utilisation de celle-ci
WO2015058820A1 (fr) * 2013-10-24 2015-04-30 Samtastic Products GmbH Bande ou plaque de matière plastique décorative multicouche et son procédé de fabrication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013267A1 (fr) * 1978-12-22 1980-07-09 Österreichisches Forschungszentrum Seibersdorf Ges.m.b.H. Procédé de fabrication de produits stratifiés
WO2003008708A1 (fr) * 2001-07-14 2003-01-30 Technocell Dekor Gmbh & Co. Kg Preimpregne
EP2146805B1 (fr) 2007-04-30 2011-11-23 S.D. Warren Company Matériaux possédant une surface texturée et leurs procédés de production
WO2009000769A1 (fr) * 2007-06-28 2008-12-31 Technocell Dekor Gmbh & Co. Kg Préimprégné
WO2013167533A1 (fr) * 2012-05-10 2013-11-14 Surface Technologies Gmbh & Co. Kg Procédé de production d'une feuille à décor et utilisation de celle-ci
WO2015058820A1 (fr) * 2013-10-24 2015-04-30 Samtastic Products GmbH Bande ou plaque de matière plastique décorative multicouche et son procédé de fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JENS FANDREY: "Von Supermatt bis Hochglanz", vol. 9, 2013, AGT VERLAG THUM GMBH, pages: 42 - 46

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3882041A1 (fr) * 2020-03-20 2021-09-22 Swiss Krono TEC AG Matière de revêtement pour surfaces de panneaux

Also Published As

Publication number Publication date
ES2776904T3 (es) 2020-08-03
PL3040476T3 (pl) 2018-10-31
EP3351682B1 (fr) 2020-01-08
EP3040476A1 (fr) 2016-07-06
PT3040476T (pt) 2018-07-30
EP3040476B1 (fr) 2018-05-09
PT3351682T (pt) 2020-03-17
PL3351682T3 (pl) 2020-06-29
TR201810382T4 (tr) 2018-08-27
ES2681479T3 (es) 2018-09-13

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