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EP2367691B1 - Procédé de fabrication d'une pièce d'usinage portant une impression numérique - Google Patents

Procédé de fabrication d'une pièce d'usinage portant une impression numérique Download PDF

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Publication number
EP2367691B1
EP2367691B1 EP10763637A EP10763637A EP2367691B1 EP 2367691 B1 EP2367691 B1 EP 2367691B1 EP 10763637 A EP10763637 A EP 10763637A EP 10763637 A EP10763637 A EP 10763637A EP 2367691 B1 EP2367691 B1 EP 2367691B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
printed
wetting agent
resin mixture
printing
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.)
Active
Application number
EP10763637A
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German (de)
English (en)
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EP2367691A1 (fr
Inventor
Rene Pankoke
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.)
Theodor Hymmen Verwaltungs GmbH
Original Assignee
Theodor Hymmen Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Theodor Hymmen Verwaltungs GmbH filed Critical Theodor Hymmen Verwaltungs GmbH
Priority to PL10763637T priority Critical patent/PL2367691T3/pl
Publication of EP2367691A1 publication Critical patent/EP2367691A1/fr
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Publication of EP2367691B1 publication Critical patent/EP2367691B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0041—Digital printing on surfaces other than ordinary paper
    • B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0041—Digital printing on surfaces other than ordinary paper
    • B41M5/0064—Digital printing on surfaces other than ordinary paper on plastics, horn, rubber, or other organic polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/009—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using thermal means, e.g. infrared radiation, heat
    • 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
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper

Definitions

  • the invention relates to a method for producing a digitally printed flat, web-shaped or plate-shaped workpiece, for example a kitchen worktop, a furniture front or a laminate floor part with a decorative and resistant surface.
  • inkjet printing process Inkjet printing process
  • inkjet printheads are very difficult to handle in industrial production with UV-crosslinked water-based inks.
  • a digitally printed flat, web-shaped or plate-shaped workpiece with an abrasion-resistant surface is produced as follows:
  • the digital printing of the respective workpiece by means of the printing device.
  • a digital printing process e.g. An ink-jet printing method employing an acrylate-containing, radiation-curing ink. In doing so, a certain minimum penetration depth of the printing ink into the paper is achieved.
  • the printing is followed by hardening of the printing ink by irradiation.
  • the cured acrylate layer initially acts as a kind of barrier layer compared to conventional aqueous resin solutions.
  • a detachment of the printed workpiece from a material layer, e.g. a backing plate, can be prevented by impregnation with a wetting agent-containing resin mixture.
  • the impregnation of the printed workpiece with a resin mixture can be done, for example, by soaking, wetting or spraying the workpiece with the respective resin mixture.
  • a wetting agent additive is used, which only allows penetration of the resin mixture or melamine resin through the acrylate layer in the predetermined paper depth.
  • a wetting agent various chemical substances can be used, in particular surfactants.
  • the curing of the resin mixture takes place, for example, in the case of aminoplasts by crosslinking polymer strands as a result of a condensation reaction known per se with the aid of a heating press, preferably a short-cycle press or a double-belt press.
  • the method according to the invention makes it possible to produce a workpiece having a resistant surface and a layered structure in which a permanent connection of the individual layers is ensured. This is achieved by a wetting agent-containing resin mixture, which penetrates the workpiece surface much better than conventional resin mixtures, for example, when using a decorative paper as a workpiece, it may come to a complete penetration of the paper. In a further process step, the then dried impregnated paper is cured in a hot press.
  • wetting agent-containing resin mixture with a wetting agent content of 0.02-2% by weight, preferably 0.1-0.5% by weight, based on the total weight of the wetting agent-containing resin mixture, since this proportion of wetting agent provides optimum penetration of the resin mixture is achieved in the surface of the workpiece, without affecting the transparency or the optical coloring of the resin layer.
  • Surfactants or surfactant mixtures can advantageously be used as wetting agents. These wetting agents reduce the surface tension between the printed workpiece and the resin used in the impregnation and thus cause a sufficient impregnation of the printed by the process according to the invention workpiece with the resin mixture.
  • UV radiation radiation in the ultraviolet range: 1-380 nm.
  • This radiation is contained in the sunlight and thus easily available.
  • UV lamps with a UV radiation range can also be used. This is UV radiation easy to handle.
  • Other radiation ranges can be used for curing.
  • the rate of curing can advantageously be accelerated if the printing inks have photoinitiators which accelerate polymerization or crosslinking of the acrylate units.
  • the UV-curing printing ink is only partially crosslinked during curing by a correspondingly lower radiation dose, preferably from 20 to 80%, particularly preferably from 30 to 65%. This allows a multi-color printing process to be split. Thus, after the printing of two colors, a first curing (pinning) of these colors can first take place. Then two more colors can be applied.
  • both material layers and the workpiece for example, consist of absorbent materials such as paper.
  • the workpiece can be applied to one or more layers of material, which are then joined together by pressing.
  • an impregnated and printed decorative paper on a wood-based panel, preferably a chipboard, MDF or HDF board, are applied, whereby a lamination of a bending resistant substrate.
  • a melamine resin-based and / or phenolic resin-based resin mixture is used in the above-described processes, since this material can penetrate the workpiece under pressure and penetrate into an underlying material layer, for example a fiberboard, and become insoluble after curing of the resin mixture Connection with the material layer is received.
  • melamine resin is resistant to moisture after curing.
  • melamine is a resin which gives a paper a transparent or translucent appearance, while phenolic resin is an optically colored resin.
  • the curing of the resin mixture is carried out by a continuous double belt press.
  • This press allows both the processing of continuous material and piece material with a high processing speed.
  • the double belt press further, non-printed, impregnated material layers, especially paper layers are pressed with the printed and impregnated workpiece. Since the feeding of the material layers can be made as continuous material, the double belt press offers a higher throughput than, for example, a short-cycle press due to its continuous operation. Subsequently, the further processing of the material, for example by structuring the surface done.
  • Fig. 1 schematically shows a feeding by means of a feed unit 102, a printing of a decorative paper 3 by means of a digital printing unit 103 and curing of the printing inks by means of an irradiation unit 104 in decorative paper by a printing device 1.
  • the digital printing can be done directly on a wooden surface 20 or, as in Fig. 1 illustrated by way of example, on a decorative paper 3 unwound from a roll 2.
  • the printing device 1 to a printer 4, which has four printheads 5.
  • These give according to the invention from UV-curable ink 6 on the surface of the decorative paper 3 from.
  • a monochrome or multicolor printing of the workpiece is possible.
  • the decorative paper 3 can be rolled up for storage on a roll 8.
  • the manner of feeding a workpiece depends on its material properties. Paper sheets can be clamped and unrolled, while wood-based panels are fed on treadmills of the printing device.
  • the printheads 5 may be stationarily disposed in the printer 4 to realize a single-pass printing process.
  • the print heads can advantageously extend over the entire width of the area to be printed.
  • the individual print heads have, for example, a width of 70 mm and are next to one another in a printing module, preferably with the UV-curing printing inks Black, mangenta, cyan and yellow arranged.
  • the inks may include, for example, acrylate prepolymers, color pigments and photoinitiators. If several printing modules are arranged side by side, it is also possible to print workpieces, for example with a width greater than 1 m. The arrangement of several printing modules stationary next to each other allows a uniform multi-color print image on which no transitions between the individual printing modules can be seen.
  • the printheads 4 in the arrangement can also be arranged on a carriage, so that a printing of the workpiece can be carried out in the multi-pass method.
  • the above-described stationary and movable printhead assembly may also be arranged in a multi-row succession to achieve a higher printing speed compared to a single-row arrangement.
  • nozzle bars may also be arranged.
  • Fig. 2 shows the process step of impregnating the workpiece with a wetting agent-resin mixture 19 by an impregnation unit 105, for example with an amino resin (melamine resin mixture), which for example comprises 0.3 percent by weight of a surfactant.
  • the surfactant lowers the surface tension of the barrier layer of the UV-cured ink 6, so that the resin can penetrate this layer.
  • the previously printed decorative paper 3 is unwound from the roll 8, pulled through a resin bath 9 with the liquid wetting agent-containing resin, squeezed off excess resin by means of a squeegee 10 and then dried by a dryer 11 shown schematically.
  • This dryer 11 is designed such that it allows drying of the resin.
  • the dryer 11 may be formed as a circulating air or hot air dryer. After drying of the resin, the workpiece can be wound onto a further roller 12 for storage.
  • a cutting device not shown, to cut the impregnated and dried paper in sheets.
  • Fig. 3 shows, as an alternative to impregnation, the method step of arranging two unprinted paper layers 17 through a coating unit 107, which are impregnated with a wetting agent-containing resin mixture 19, above and / or below a printed wood workpiece 20.
  • the curing of the resin mixture takes place in a curing unit 107.
  • the bonding of the individual layers with the respective printed workpiece takes place in a heating press.
  • a heating press 106 a double belt press 14 with two rollers 15 and a feeder for the wood-based panel 13 is shown.
  • FIG Fig. 4 An alternative embodiment of the method step of connecting the printed decorative paper 3 to the wood-based panel 13 by a heating press 106 is shown in FIG Fig. 4 shown.
  • FIG. 5 shows the schematic structure of a device for producing the mechanically perforated decorative paper.
  • the non-resin decorative paper 3 is unwound. It then passes under a printing device 1 and a UV lamps 7 for drying through and is then equipped with a spike or similar mechanical perforation roller 24 and a correspondingly configured counter-roller 25, in one possible embodiment, the spines of the spiked roller 24 in each case run out executed recesses of the platen roller 25 and so perforated between two rolls already printed decorative paper 3 perforate. Subsequently, the perforated and printed decorative paper 3 is wound up on a roll 26 again. In an alternative embodiment, this decorative paper may also be slightly or more strongly dented before unwinding from the roll 23.
  • FIG. 6 shows a suitable printable paper 3, which is printed with a UV-curable ink 6 on the surface. It can be seen that depending on the decorative image used, the surface of the paper 3 is more or less covered by the printing ink 6. In a very bright decor, which results in the inventive method to a printing with about 3 g of printing ink / m 2 surface area, a high permeability of the printing ink 6 for the wetting agent-containing melamine resin mixture 19 is added. When printing the surface with a dark decor, which leads to an occupancy of the surface with usually 10 g or more per m 2 surface, a poorer permeability is given, which would be given by the prior art without the inventive method no permeability.
  • the resin bath 9 with the melamine resin mixture indicates the subsequent post-printing impregnation in which the melamine resin penetrates through the applied ink layer of digital printing ink into the paper.
  • FIG. 7 shows a cross-section through a printable paper 3, which is already printed with the ink 6, and then the process step of impregnation with the net-containing melamine resin mixture 19. It can be seen that here the melamine resin mixture with the wetting agent additive through the layer of Digitatdrucktinte in the Paper 3 is penetrated and this was completely impregnated.
  • FIG. 8 shows a section of the layer-wise coated workpiece from the printable paper 3, which has been printed with the digital ink 6 and was impregnated with wetting agent-containing melamine resin mixture 19.
  • the workpiece was made of paper 3 with a wood-based panel 13 as a support plate, which was firmly and permanently connected to the paper 3 in the process step of hot pressing. It is important that, in the process step of hot pressing, the wetting agent-containing melamine resin mixture, which has penetrated into the paper 3 in the impregnation step, penetrates from the paper 3 into the surface of the wood-based panel 13 and hardens there, thus forming the connection.
  • the resistant surface made of cured melamine resin formed after the end of the last process step 19 may contain a corresponding embossed surface structure, which is produced by the use of embossing plates in a short-cycle press or embossing bands in a continuous double belt press.
  • this surface structure 27 can be formed by a further resinated paper without decorative printing, that is to say an overlay paper 17. This overlay paper 17 is connected and patterned in the same pressing process with the printed piece of paper 3.
  • FIG. 9 shows a basic structure for a possible variant of the method according to the invention, in which a pre-impregnated with melamine (without wetting agent) paper 3 is printed with the UV printing ink 6.
  • Under the printed pre-impregnate is another resinated but unprinted underlay paper 17 'laid and this paper coated so 3 is provided with a wood-based panel 13, eg chipboard or MDF support plate.
  • the underlying structure on the back of the support plate can be constructed identically to the structure above.
  • the package thus formed is then pressed in a hot press and thus inseparably connected to each other (not in FIG. 4 shown).
  • FIG. 10 shows a further alternative embodiment of the method according to the invention.
  • the decorative paper 3 is unbehech, ie not impregnated, but printed as in the other variants with the UV-curable ink 6.
  • the package to be subsequently pressed is additionally formed from an overlay paper 17 impregnated with melamine resin mixture and an appropriate admixture of wetting agent 28 and an underlying underlay 17 'likewise impregnated with melamine resin 19 and wetting agent mixture 28.
  • the structure may be identical as above the plate.
  • FIG. 11 shows a further alternative embodiment of the method according to the invention.
  • the printing with the UV ink 6 on the decorative paper 3 may be before or in an alternative embodiment, even after the mechanical production of the holes (perforation) in decorative paper.
  • Through these holes can during during the subsequent pressing process in the hot press penetrate the melamine resin 19 from the impregnated underlay 17 and overlay 17 'better through the ink layer of UV ink 6 and make a complete solid connection.
  • the melamine resin with wetting agent has completely soaked the mechanically perforated decorative paper 3 and also the uppermost layer of the wood-based material carrier plate. This so-pressed structure is shown.
  • a wear protection layer may be applied, possibly also in conjunction with wear layer 21 sprinkled during the curing, in particular with corundum (aluminum oxide (Al 2 O 3 )).
  • a digital data record for a decorative image to be printed for example a wood optic, such as e.g. an oak decoration or the like, for the digital printing apparatus, for example, by a computing unit 101.
  • a suitable printable workpiece is fed to the printing device via a feed unit 102.
  • This workpiece may be formed as decorative paper 3 or wood-based panel 20
  • a decorative paper 3 is preferably a paper having a basis weight of 40-120 g / m 2 , more preferably 60-100 g / m 2 , and a residual moisture before printing of 0.5-8% (weight percent) of water in the paper, especially preferably 1.5-2.5% (weight percent).
  • the decorative paper consists of fibers, for example natural fibers and additives and bleaching agents, for example titanium dioxide (TiO 2 ) for whitening.
  • this decorative paper provided is printed in the digital printing device (103) with a UV-curing printing ink.
  • This digital printheads are used, which have a nozzle opening size of 10 - 100 microns, more preferably 15 - 40 microns in diameter.
  • these digital printheads at least one printhead per color, so in a four-color print at least four printheads, provided in the device.
  • a plurality of print heads per color may also be arranged in the printing device in order to achieve a greater printing capacity.
  • the digital printheads may be fixedly disposed over most or all of the width of the media to be printed. In this case, the paper moves under the fixed print heads.
  • the UV ink used contains pigments as colorants, ie solids which have a high to very high color stability.
  • This color stability according to the known Woll scale, is between 5-8, particularly preferably 6-8.
  • the pigments used have an average particle size of 0.01-5 ⁇ m, more preferably 0.1-3 ⁇ m.
  • the proportion of the pigments based on the total weight of the radiation-curing digital printing ink used is 0.4-25%, particularly preferably 1-10%.
  • curing, ie polymerizing, acrylates are provided. These are already present as polymers or prepolymers and as a mixture with monomers which have a lower viscosity and act as a reactive diluent. These acrylates, ie polymers and monomers, form the main constituent of the radiation-curing UV printing ink.
  • photoinitiators with a percentage by weight of 0.1-25%, more preferably 1-10%.
  • photoinitiators e.g. Triaryl sulfonium salts or with diaryl-iodonium salts in question.
  • photoinitiators which represent a different reaction rate at different wavelengths of UV radiation used.
  • additives which positively influence the physical properties of the printing ink (viscosity, electrical conductivity, stability, homogeneity).
  • a Penetration depth of the UV ink in the decorative paper of 25 - 80%, particularly preferably 40 - 70%, based on the total thickness of the decorative paper.
  • a slightly reserved decorative paper e.g. with a melamine resin mixture used.
  • the proportion of melamine resin after drying is 2-3%, preferably 5-15% (weight percent).
  • a penetration depth of the UV ink based on the total thickness of the paper of 10 - 50%, more preferably 15 - 40%, is produced.
  • the decorative papers used have a thickness of 60-300 microns, more preferably from 80-200 microns.
  • the decorative paper thus printed is passed under a UV radiation source of a UV irradiation unit 104 and thus the UV ink is cured, i. there is a crosslinking of the acrylates contained in the UV ink instead.
  • This crosslinking can be complete, but in an alternative embodiment, it can also be carried out to 50-95%.
  • Radiation sources for the process according to the invention are both UV LEDs and conventional UV emitters, each with an emission maximum between 150-380 mm, that is, depending on the selected photoinitiators in the UV-A, UV-B or UV-C range ,
  • the printed and cured decorative paper according to the invention is subsequently perforated in a mechanical process, ie provided with small holes which likewise ensure improved penetration of the melamine resins subsequently used in the impregnation.
  • This perforation can take place, for example, with a spiked roller or similar mechanical instruments.
  • the diameter of the perforation holes in the paper according to the method of the invention between 1 and 0.01 mm, more preferably between 0.5 and 0.05 mm to choose.
  • the perforation holes are according to the invention Method chosen so that no more visible from a distance (viewing distance 0.5 - 2 m) holes remain after the compression step.
  • the spacing of the holes in the method according to the invention is between 0.1 mm and 10 mm, preferably between 0.5 and 3 mm (in each case from one hole to the next).
  • the thus printed and cured decorative paper is impregnated in an impregnation unit 105 with an aqueous melamine resin mixture.
  • Crosslinkable aminoplastic resins are used according to the process of the invention.
  • condensation products ie etherified products of melamine, urea-formaldehyde mixtures or melamine-formaldehyde mixtures are used.
  • a hardener usually 0.01-2.5% (weight percent) based on the final resin mixture.
  • curing agents come e.g. organic sulfonic acids or carboxylic acids are used.
  • This aqueous resin mixture with a solids content of 40-70% based on the aqueous solution is then a wetting agent in a concentration of 0.02 to 2% based on the total weight, particularly preferably 0.1 to 0.5%, added.
  • Wetting agents by the process according to the invention may be anionic or cationic surfactants.
  • anionic surfactants e.g. Sodium, potassium, ammonium salts of sulfonic acid, sulfonated fatty alcohols or ethoxylated fatty alcohols are used, as cationic surfactants in an exemplary embodiment e.g. Polyethylene glycol or polyvinyl alcohol.
  • wetting agents reduce the surface tension between the printed decor paper 3 and the resin used in the impregnation and thus cause a sufficient impregnation of the decorative paper 3 printed by the method according to the invention with the resin mixture 19.
  • the printed and cured with UV rays decorative paper 3 may remain unimpregnated and only a blank overlay 17 and / or an unprinted underlay 17, so a white, later after pressing transparent paper, impregnated with the illustrated aqueous resin mixture and the wetting agent additive.
  • the overlay 17 and underlay paper 17 ' is arranged on the surface of the decorative paper 3 by a coating unit 107.
  • the wetting agent added achieves good resin flow from the overlay and / or underlay paper 17 into the decorative paper 3 not printed but printed with the UV ink 6 during the pressing operation in a hot press.
  • a package structure is formed from a wood material carrier plate 13, which is covered on one or both sides with the printed and impregnated decorative paper 3.
  • the wood-based panel 13 is covered with the printed but not impregnated decor paper 3, wherein between decorative paper and wood-based panel is still placed with a resin mixture and wetting agent underlay paper 17 is placed.
  • an overlay paper 17 impregnated with resin mixture and wetting agent may be applied to the package thus formed.
  • the same package formation can be placed on the underside of the wood-based panel.
  • This so composed of different layers package is then in a hot press 106 under a pressure of 20 - 60 bar, more preferably 30 - 40 bar, and a temperature of 150 - 230 ° C, more preferably 170 - 200 ° C, pressed.
  • smooth or structured embossing plates 110 can be used, which process or structure the surface of the formed package.
  • the aqueous dried resin mixture becomes liquid within the first few seconds and then forms a completely soaked composite between the various paper layers and the uppermost cover layer in the wood-based panel (chipboard, MDF or HDF board).
  • the second few seconds of pressing which usually takes between 5 and 30 seconds, hardens (polymerizes) the melamine resin to form an irreversibly cured, highly resistant surface.
  • the upper or one of the upper impregnated but not printed papers may additionally be provided with a corundum 21 (Al 2 O 3 ) or other solids in order to increase the abrasion resistance of the product produced, eg for use as laminate flooring.
  • a corundum 21 Al 2 O 3
  • other solids in order to increase the abrasion resistance of the product produced, eg for use as laminate flooring.
  • a continuous double belt press 14 with a corresponding embossing belt usually a chromed steel belt, are used.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Toxicology (AREA)
  • Laminated Bodies (AREA)

Claims (15)

  1. Procédé de fabrication d'une pièce d'usinage (3, 20) portant une impression numérique, plane, en forme de bande ou de plaque avec une surface résistante à l'abrasion, caractérisé par les étapes suivantes :
    A) mettre à la disposition d'un dispositif d'impression numérique (1) un ensemble de données numérique pour une image décorative ;
    B) amener une pièce d'usinage pouvant être imprimée (3, 20) au dispositif d'impression (1) ;
    C) imprimer numériquement à l'aide du dispositif d'impression (1) en utilisant au moins une encre d'impression (6) contenant de l'acrylate durcissant par rayonnement ;
    D) durcir l'encre d'impression (6) ;
    E) imprégner la pièce d'usinage imprimée (3, 20) d'un mélange de résine contenant un agent mouillant (19) ; et
    F) durcir le mélange de résine (19) contenant un agent mouillant à l'aide d'une presse à chaud (14, 15, 106).
  2. Procédé selon la revendication 1, caractérisé en ce qu'un mélange de résine contenant un agent mouillant avec une part d'agent mouillant comprise entre 0,02 et 2 pourcents en poids, de préférence entre 0,1 et 0,5 pourcent en poids, par rapport au poids total du mélange de résine contenant un agent mouillant, est utilisé pour l'imprégnation.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'un mélange de résine contenant un agent mouillant est utilisé pour l'imprégnation, l'agent mouillant contenant au moins un agent tensioactif ou un mélange d'agents tensioactifs.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'encre d'impression contenant de l'acrylate est durcie sous rayonnement UV.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'impression numérique de l'étape C) est effectuée en utilisant au moins une encre d'impression (6) contenant de l'acrylate durcissant par rayonnement, qui présente au moins un photo-initiateur.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'impression numérique de l'étape C) est effectuée en utilisant l'au moins une encre d'impression (6) contenant de l'acrylate durcissant par rayonnement, qui présente une profondeur de pénétration d'au moins 10 µm dans une pièce d'usinage contenant de la cellulose (3, 20).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'encre d'impression (6) contenant de l'acrylate durcissant sous rayonnement UV est réticulée au moins partiellement pendant le durcissement par une dose de rayons moindre en conséquence, de préférence entre 20 et 80 %, de manière particulièrement préférée entre 30 et 65%.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que pour l'imprégnation de la pièce à usiner imprimée numériquement, au moins une couche de matériau (17) imprégnée d'un mélange de résine contenant un agent mouillant est appliquée au moins d'un côté sur la pièce d'usinage (3, 20) puis est durcie à l'aide d'une presse à chaud.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'après l'étape d'imprégnation de la pièce d'usinage imprimée (3, 20) avec le mélange de résine (19) contenant un agent mouillant, une application de la pièce d'usinage (3, 20) est effectuée au-dessus ou au-dessous d'une ou de plusieurs couches de matériau (13) et pendant le durcissement, une liaison entre la pièce d'usinage (3, 20) et la couche de matériau (13) est réalisée.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un préséchage consécutif du mélange de résine (19) est effectué après l'étape d'imprégnation de la pièce d'usinage (3, 20) imprimée avec le mélange de résine contenant un agent mouillant (19).
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un mélange de résine (19) contenant un agent mouillant à base de résine de mélamine et/ou de résine de phénol est utilisé pour l'imprégnation de la pièce d'usinage (3, 20) imprimée ou de la couche de matériau (17) non imprimée.
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'avant le durcissement, d'autres couches de matériau imprégnées (17), en particulier des couches de papier, sont disposées au moins d'un côté sur la pièce d'usinage (3, 20) imprimée imprégnée ou l'une ou plusieurs couches de matériau (13).
  13. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un traitement de surface est effectué pour la fabrication d'un stratifié décoratif pendant ou après le durcissement du mélange de résine contenant un agent mouillant.
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que selon le processus de pressage de la presse à cycle court (15), la suite composée d'une ou de plusieurs couches de matériau imprégnées, en particulier de couches de papier (17), une couche de la pièce d'usinage (3, 20) éventuellement imprégnée et imprimée au préalable et une autre couche de matériau, en particulier une plaque de matériau dérivé du bois (13), sont pressées en une unité solide durcie.
  15. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce d'usinage imprimée (3, 20) est perforée mécaniquement après l'impression et avant ou après le durcissement de l'encre d'impression contenant de l'acrylate (6) ou la pièce d'usinage à imprimer (3, 20) est perforée mécaniquement avant l'impression.
EP10763637A 2009-09-23 2010-09-21 Procédé de fabrication d'une pièce d'usinage portant une impression numérique Active EP2367691B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10763637T PL2367691T3 (pl) 2009-09-23 2010-09-21 Sposób produkcji zadrukowanego cyfrowo elementu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009044092A DE102009044092A1 (de) 2009-09-23 2009-09-23 Verfahren zur Herstellung eines digitalbedruckten Werkstückes
PCT/EP2010/063862 WO2011036142A1 (fr) 2009-09-23 2010-09-21 Procédé de fabrication d'une pièce d'usinage portant une impression numérique

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EP2367691A1 EP2367691A1 (fr) 2011-09-28
EP2367691B1 true EP2367691B1 (fr) 2013-03-20

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EP (1) EP2367691B1 (fr)
DE (1) DE102009044092A1 (fr)
ES (1) ES2414932T3 (fr)
PL (1) PL2367691T3 (fr)
WO (1) WO2011036142A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4406748A3 (fr) * 2014-02-06 2024-10-02 Unilin, BV Procédés de fabrication de panneaux à surface décorative

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010037632A1 (de) 2010-09-17 2012-03-22 Theodor Hymmen Verwaltungs Gmbh Verfahren zur Herstellung eines digitalbedruckten Werkstückes
UA111997C2 (uk) * 2012-04-02 2016-07-11 Кроноплюс Текнікал Аг Панель з покриттям, нанесеним методом прямого друку
DE102013112275B4 (de) 2013-11-07 2019-12-12 Hymmen GmbH Maschinen- und Anlagenbau Verfahren zur Herstellung eines dekorativen Laminates
EP3275678B1 (fr) * 2014-01-10 2020-12-16 Agfa Nv Fabrication de stratifiés décoratifs par impression à jet d'encre
DE102014104662B4 (de) * 2014-04-02 2016-12-01 Wemhöner Surface Technologies GmbH & Co. KG Arbeitsverfahren für den digitalen Multipass-Mehrfarbendruck
CN104723499B (zh) * 2015-03-09 2017-03-22 福建省石狮市通达电器有限公司 一种imt装饰件的制备方法
EP3536511A1 (fr) * 2018-03-09 2019-09-11 Agfa Nv Procédé de fabrication de panneaux décoratifs
KR20210060496A (ko) 2018-08-30 2021-05-26 인터페이스 인크. 바닥재 및 장식용 구조체들을 위한 디지털 인쇄
EP4219178A1 (fr) * 2022-01-26 2023-08-02 SWISS KRONO Tec AG Procédé de fabrication d'un papier décoratif

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1068083T3 (da) * 1999-01-26 2004-01-26 Kronospan Tech Co Ltd Fremgangsmåde til fremstilling af laminatbelægninger og laminatbelægning
SE527165C2 (sv) * 2004-04-07 2006-01-10 Pergo Europ Ab En förbättrad process för framställning av dekorativt laminat
DE102007046237A1 (de) * 2007-09-26 2009-04-02 Dekor-Kunststoffe Gmbh Verfahren zur Herstellung von Beschichtungselementen sowie diesbezügliche Fertigungseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4406748A3 (fr) * 2014-02-06 2024-10-02 Unilin, BV Procédés de fabrication de panneaux à surface décorative

Also Published As

Publication number Publication date
EP2367691A1 (fr) 2011-09-28
ES2414932T3 (es) 2013-07-23
PL2367691T3 (pl) 2013-08-30
WO2011036142A1 (fr) 2011-03-31
DE102009044092A1 (de) 2011-03-31

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