EP3288688B1 - Procédé de réalisation de surfaces structurées et objets ainsi structurés - Google Patents

Procédé de réalisation de surfaces structurées et objets ainsi structurés Download PDF

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Publication number
EP3288688B1
EP3288688B1 EP16723263.6A EP16723263A EP3288688B1 EP 3288688 B1 EP3288688 B1 EP 3288688B1 EP 16723263 A EP16723263 A EP 16723263A EP 3288688 B1 EP3288688 B1 EP 3288688B1
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EP
European Patent Office
Prior art keywords
embossing
substrate
layer
mold
reactive hotmelt
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
EP16723263.6A
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German (de)
English (en)
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EP3288688A1 (fr
Inventor
Klaus Becker-Weimann
Jens Fandrey
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.)
Kleiberit SE and Co KG
Original Assignee
Klebchemie MG Becker GmbH and Co KG
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Priority to SI201631323T priority Critical patent/SI3288688T1/sl
Priority to PL16723263T priority patent/PL3288688T3/pl
Publication of EP3288688A1 publication Critical patent/EP3288688A1/fr
Application granted granted Critical
Publication of EP3288688B1 publication Critical patent/EP3288688B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • B05D1/42—Distributing applied liquids or other fluent materials by members moving relatively to surface by non-rotary members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2503/00—Polyurethanes

Definitions

  • the present invention relates to a method for producing structured surfaces on a carrier surface coated by means of a HotCoating method.
  • a further approximation of the optical and haptic properties of a natural material surface can therefore only be achieved if the surface is structured, ideally congruent with the printed optical structure. It is known, for example, to structure or texturize material plates that are printed or covered with resin-impregnated papers in such a way that an uppermost uncured resin or lacquer layer is brought into contact with a structure roller, press plates or press rollers, whereby the lacquer or the Resin hardens, leaving a three-dimensional surface structure.
  • Curing can take place by heat or radiation through a transparent embossing die, the embossing die subsequently being pulled off the substrate so that the cured resin or the cured lacquer has a structure corresponding to a negative image of the surface structure of the embossing die.
  • a largely regular embossing of a floor covering can improve its soiling behavior.
  • a uniform embossing i.e. a regular pattern of elevations and depressions while maintaining a certain groove spacing and a certain height of the elevations, can structure a top surface so that the so-called lotus effect can be effective.
  • a corresponding embossing can take place by means of an embossing roller, with an uppermost surface of a cover layer or a base layer being embossed, which is covered with a cover layer.
  • EP 1 645 339 A1 It is known to produce a structured surface on a material plate, printed with a decoration and covered with an in particular transparent topcoat layer, in that a further paint layer is applied before the topcoat layer has hardened, which is closed with the smooth, not yet hardened topcoat layer a more or less uniform layer connects.
  • a further paint layer is applied before the topcoat layer has hardened, which is closed with the smooth, not yet hardened topcoat layer a more or less uniform layer connects.
  • varying amounts of lacquer can be applied to the top lacquer layer in accordance with the elevations and depressions of the roller surface.
  • a structured surface structure can be generated by a direct application of lacquer using digital print heads, for example according to the principle of an inkjet printer, although the structure achieved does not have the texture and depth of a mechanically embossed structure.
  • the pores, i.e. depressions, present in natural materials are simulated by elevations, so that an inverse natural wood surface structure is created, which the human eye and the sense of touch cannot distinguish up to a size of 100 ⁇ m.
  • These structures are, however, of a shallow depth, in particular up to 5 ⁇ m.
  • DE 10 2004 032 058 D1 relates to a method for producing a plate with a surface having a decoration, wherein the plate consists of a carrier material based on lignocellulosic material.
  • the applied primer layer is smoothed by means of a smoothing device in order to achieve an improved print image.
  • a method is also described in which a synthetic resin system is applied to the surface as a primer layer and / or as a sealing layer. Panels produced in this way can be used as floor panels or as furniture panels.
  • the present invention is based on the object of proposing a simple method for producing a deeply structured surface in the course of wet painting or hot coating which achieves an improved feel and appearance.
  • a method for producing structured surfaces wherein in a first step a) a layer of a moisture-crosslinking reactive hot melt mass based on polyurethane is applied to at least part of a carrier surface, followed by application of at least one lacquer layer.
  • a structured surface is produced on the applied layer structure by means of an element with a textured surface.
  • a lacquer layer can also be applied after the actual embossing step, whereby different lacquers can also be applied before and after the embossing step.
  • a layer of lacquer is applied to a layer of reactive hotmelt based on polyurethane, which is, for example, a UV-curing lacquer.
  • the UV varnish is not complete before the next step hardened, but only partially reacts, with the paint taking on a gelled consistency. In this way, a certain flexibility is retained, which favors the embossing.
  • step c) in which a lacquer layer is applied to the carrier surface covered with the reactive hot melt, step c) taking place after step a) and before step b) or both before and after step b) .
  • an object with a structured surface on at least part of a carrier surface which can be obtained according to the method according to the invention, is disclosed.
  • a HotCoating layer made of a moisture-crosslinking reactive hot melt mass is first provided, which is embossed in a corresponding step on a surface with a three-dimensional structure.
  • the reactive hot melt is a reactive hot melt based on polyurethane, which normally reacts and hardens with the aid of the moisture in the room air.
  • radiation-curable or radiation-reactive hot melt masses based on polyurethane are also suitable, a suitable hot melt mass based on a moisture-crosslinking polyurethane containing a component polymerizable by electrons or UV radiation, a photoinitiator and, if appropriate, additives.
  • a preferred method according to the invention is characterized in that the reactive hotmelt based on a polyurethane in step a) is a radiation-curable hotmelt which contains at least one functional group that can be polymerized by irradiation.
  • Suitable reactive enamel masses curable by irradiation are, for example, in US 8,153,264 B2 or WO 2006/106143 A1 described.
  • the reactive molten mass based on polyurethane can be either one-component or multi-component, in particular two-component.
  • a one-component reactive hot melt is preferred.
  • the one-component reactive molten mass based on polyurethane is in the prior art, for example in WO 2006/056472 A1 or WO 2012/084823 A1 described.
  • one component preferably contains a mixture of one or more polyols and, if appropriate, additives and the other component one or more polyisocyanates and, if appropriate, additives.
  • 2-component mixing and metering systems as are known from the prior art, are used. The two components are usually mixed directly before the reactive melt is used.
  • the layer system as described above can in particular comprise further layers which, for example, promote a connection of the layer system to the carrier surface.
  • a reactive hot melt mass based on polyurethane is characterized by good adhesive properties on a wide variety of carrier surfaces.
  • carrier surfaces made of wood, wood-like material, iron, non-ferrous metal, plastic, paper, decorative paper, cardboard, paper mache, glass, linoleum, inorganic non-ores or a mineral substance can at least partially consist.
  • the carrier surface is preferably the surface of a wood-based panel, inorganically bound panel, plastic panel, compact panel, panel in sandwich construction, lightweight panel and / or of linoleum.
  • the reactive hot melt mass based on polyurethane can be applied to a carrier surface, for example made of paper, provided as a web or as a sheet become.
  • a carrier surface for example made of paper
  • This carrier surface covered in this way can be structured by means of an embossing step before or during or after a lamination of this layer structure on a further carrier substrate or carrier plate. Accordingly, an overlay or a lamination or sheathing material is provided which can be laminated with a carrier substrate or a carrier plate.
  • a carrier surface to be coated is provided, on which an optical image of a surface to be reproduced is printed, for example an image of a wooden surface.
  • the pressure can be applied directly to the carrier surface so that it largely becomes part of the carrier surface.
  • the carrier surface can be covered with a web product, for example made of paper or foil, which is printed with a corresponding decoration.
  • a layer of colored HotCoating can be created on the carrier surface, which can also be used as web material.
  • Printing methods are known in which a multicolored image is generated on a carrier surface by means of an inkjet printer controlled by a processor with stationary or single pass or movable or multi-pass print heads.
  • the carrier surface can in particular be pretreated with a sealing layer and covered with protective layers after printing.
  • a preferred embodiment relates to a method in which a decoration, for example in the form of a web material provided with a decoration, is applied to the carrier surface before the reactive hot melt mass is applied in step a).
  • the decor can be printed directly or digitally on at least part of the surface of the carrier surface.
  • the three-dimensional structure produced by embossing in step b) is preferably synchronized with the applied decoration.
  • a further preferred embodiment comprises a method according to the invention in which a colored HotCoating coating is applied to the carrier surface before the reactive hot melt mass is applied in step a).
  • a reactive hot-melt mass based on polyurethane which is applied to such a printed carrier surface in the course of the HotCoating system, has the advantage that it can be applied once even with thick layers.
  • Layer thicknesses in the range from 50 ⁇ m to 800 ⁇ m can be achieved.
  • the layer thickness is preferably 50 ⁇ m to 300 ⁇ m, more preferably 50 ⁇ m to 200 ⁇ m.
  • the layer thicknesses, which vary over a wide range, can be produced by applying them once, which represents an advantageous time saving. This is in contrast to conventional lacquer coatings, which are applied in several layers with appropriate intermediate sanding and drying steps.
  • stress class 21 residential / moderate
  • stress class 33 commercial / heavy
  • the reactive hot melt mass based on polyurethane is a product that is solid at room temperature and is free of emissions and solvents.
  • the temperature at which the reactive hot melt is applied is in a range from 60 ° C. to 150 ° C., preferably from 100 ° C. to 140 ° C., the product having a BROOKFIELD viscosity of 120 ° C. in the range of 1,000 mPas up to 30,000 mPas, preferably 4,000 mPas to 10,000 mPas.
  • the density of the reactive hot melt is usually 1.1 g / m 2 .
  • the layer of reactive hot melt mass based on polyurethane can for example be knife-coated, rolled on, sprayed on or applied by means of nozzles or slot nozzles, or by means of curtain coating or by means of fibers (thread application).
  • the reactive hot melt layer advantageously has a certain residual elasticity even in the hardened state. In addition to physical solidification, the hardening takes place at least partially - in particular exclusively - by moisture hardening with the aid of atmospheric humidity.
  • the reactive hot melt mass can comprise additives, auxiliaries and / or fillers, with particles of a filler component being able to be varied over a wide range with regard to material, particle size, shape and weight. Due to the good integration of the particles of the filler component in the reactive hot melt with high viscosity and special rheology, the particles remain largely evenly distributed even at higher processing temperatures, so that no additional mixing is necessary.
  • the not yet fully cured reactive hot melt layer is advantageously coated with a layer of lacquer, the layer of lacquer representing protection and at the same time a surface effect.
  • the application of lacquer can be provided before the actual embossing step, after the embossing step or both before and after the embossing step. Complete curing of the applied reactive hot melt mass based on polyurethane and the applied lacquer layer are not required.
  • the lacquer or lacquers used can be any lacquer; the lacquer is advantageously characterized by a short curing time. Examples are 2-component PUR lacquers, nitro lacquers or water-based lacquers. UV-curing lacquers are preferably used.
  • the lacquer can be applied using a conventional application method, a lacquer layer having a thickness of 5 ⁇ m to 25 ⁇ m.
  • a combined reactive hot melt / lacquer layer combines the positive properties of the individual layers.
  • the reactive hotmelt can harden, even if the applied lacquer layer prevents direct contact of the reactive hotmelt layer with the surrounding air.
  • An improvement can be achieved by smoothing the layer after the reactive hot melt compound has been applied to the carrier surface, with the smoothing advantageously taking place under heat, for example by means of a smoothing roller or a smoothing belt.
  • a corresponding smoothing step is off, for example WO 2006/066954 A1 known.
  • step a) in the process according to the invention a step is provided in which the layer of reactive hot melt based on a polyurethane applied to the carrier surface is smoothed.
  • embossing The creation of a structured surface, also referred to as embossing, is favored by the HotCoating system in that an applied layer system is also possible with a large layer thickness, in particular since curing according to the principle of moisture crosslinking is not limiting.
  • the layer thickness is directly related to the profile depth of the embossed structure.
  • the method according to the invention thus offers the possibility of producing a distinct deep structure due to the high layer thickness, even if the carrier surface itself is not also embossed.
  • layer thicknesses of 50 to 200 ⁇ m and - as indicated above - even greater thicknesses can be applied.
  • the embossing can also include an embossing of the provided carrier surface, in particular if the carrier surface consists at least partially of the material cork.
  • the known methods for producing structured surfaces by means of a topcoat layer and a lacquer structure applied or produced thereon in the context of a further lacquer layer are in contrast to the method according to the invention, which advantageously uses the properties of the HotCoating system.
  • the reactive enamel based on polyurethane hardens through chemical crosslinking with the moisture present in the environment, whereby the applied and thus covering layer of lacquer does not prevent the hardening.
  • a combined layer system can be embossed in a simple manner, with embossing being able to take place either inline or at a later point in time or offline.
  • the embossing can take place, for example, with an embossing roller or calender roller, which has a surface structure, a negative image of the surface structure of the embossing roller being produced on the uppermost surface of the coated carrier surface.
  • an embossing roller or calender roller which has a surface structure, a negative image of the surface structure of the embossing roller being produced on the uppermost surface of the coated carrier surface.
  • rubber-coated rollers can also be used, with indentations being made in their rubber coating.
  • a roller surface made of rubber or a rubber-like material can also compensate for unevenness in the surface to be structured.
  • Embossing rollers made of plastic, wood or textile can also be used.
  • an embossing mold designed as an embossing roller is preferably used during the embossing in step b), which embossing mold consists of a material selected from metal, plastic, wood, rubber and textile.
  • the embossed surface structure can be produced by means of a short-cycle press with an embossing tool in the form of a press plate or an endless belt, also referred to as a structured transfer film.
  • Metallic embossing molds are conventionally used, a printed sheet metal pretreated with a mask being etched in such a way that the areas which are not covered by the mask are etched. Several work steps are required to create a deep structure.
  • PET foils as embossing matrices is known, with material being partially removed in the form of depressions by etching.
  • Suitable embossing or compression molds have a surface roughness of up to 1000 ⁇ m.
  • Embossing molds can be designed as matrices made of metal, plastic, wood, rubber, stone or textile.
  • the embossing in step b) can take place with an embossing roller designed as an embossing roller or with a flat embossing mold.
  • a structured transfer film can also be used as an embossing mold, in particular made of metal, plastic or textile.
  • the method according to the invention for producing structured surfaces on a carrier surface coated by means of the HotCoating method comprises, after application, a Reactive hot melt layer and a layer of lacquer are the actual embossing of the top surface.
  • further layers can be provided for producing a layer system, the layer thickness to be embossed increasing and accordingly greater profile depths being achieved.
  • Some parameters can be varied for the embossing step.
  • An embossing depth to be achieved for the surface structure produced is related to the time span between the application of the reactive hotmelt and the lacquer layer and the embossing step, which can also be referred to as the crystallization or curing time.
  • the more cross-linked the applied reactive hot melt, ie the more advanced the curing, the higher the temperature and pressure to be selected for the embossing step or the flatter and less sharp is a three-dimensional structure to be achieved.
  • the embossing in step b) can take place immediately without a time delay. Typically, however, there is a time delay of 20 seconds to 72 hours.
  • the crystallization or hardening time to be observed for an inline process is preferably between 30 s and 4 hours.
  • the crystallization or curing time can be extended up to 24h or 72h, with ideal embossing results being achieved and the applied coating system hardening before, during and / or after the embossing step . It is particularly advantageous that a short crystallization or hardening time is also possible before the embossing step, without the three-dimensional surface structure produced losing sharpness and / or depth due to restoring effects.
  • the three-dimensional structure produced by embossing in step b) can only extend into the layer or layers applied to the carrier surface or into the carrier surface.
  • the temperature prevailing during the embossing process is also important. A temperature range from 20 ° C. to 180 ° C. is preferred. If the temperature is too high, color changes can occur in the applied layer or layers. It should be noted here that certain materials of the embossing mold have an insulating effect, so that the temperature on the surface to be structured is different from that of the embossing mold.
  • the embossing mold is preferably heated here.
  • the embossing in step b) is preferably carried out at a temperature in the range from 20 ° C. to 180 ° C., the embossing mold being heated.
  • Another parameter of the embossing process is the contact pressure and the contact time.
  • a contact pressure of 30 bar to 150 bar can be applied, with a contact time of 5 seconds to 20 seconds being maintained.
  • a particular advantage of the method according to the invention for the production of structured surfaces on a carrier surface coated by means of the HotCoating process is to produce identical structures in a simple, cost- and time-saving manner, as are known from nature, which have a particularly appealing look and feel .
  • the process offers the possibility of meeting the high demands in terms of resistance for a wide range of applications, from furniture parts to flooring elements.
  • the physical and chemical properties of the reactive hot-melt mass based on polyurethane with a combined application of lacquer in the course of hot coating prove to be advantageous with regard to the embossing, since largely no restoring effects are to be expected.
  • the surface structures achieved by the embossing are retained as they are immediately after the embossing.
  • a device 1 or system for the production of panel-shaped products with a decoration is shown, for example furniture panels, floor elements, wall or ceiling panels.
  • Multiple support surfaces 2, in Figure 1 shown as plate-shaped products, are arranged on a transport device 4, which are fed to various processing stations 6, 8, 10 one behind the other.
  • the transport device 4 can be designed as a conveyor roller conveyor with conveyor rollers.
  • the direction of transport of the carrier surface 2 is indicated by an arrow 3. It is also conceivable that a single large-area carrier surface 2 or a continuously manufactured workpiece are processed, which are separated at a later point in time.
  • the carrier surface 2 can also be referred to as a carrier substrate.
  • the support surface 2 can be wood-based, for example chipboard, medium-density fiberboard, high-density fiberboard or hardboard, or cork.
  • Inorganically bound panels e.g. plaster of paris, gypsum fiber, cement
  • plastic e.g. PVC, acrylic, PP, etc.
  • compact panels e.g. resin-impregnated papers
  • sandwich constructions e.g. a honeycomb core with appropriate cover layers
  • lightweight panels e.g. a honeycomb core with appropriate cover layers
  • / or linoleum are suitable.
  • the support surface 2 can be printed with a decoration, for example digitally, in a processing station (not shown).
  • a film or paper provided with a decoration can be laminated onto the carrier surface 2.
  • the decoration for example a wood, natural stone or other decoration, can be printed on by means of one or more pressure roller mechanisms or a digital printing device, with post-processing devices, for example for drying or partial drying of the printed decoration image, being able to follow.
  • a subsequent processing station 6 which is also referred to as the application station
  • the so covered or printed carrier surface 2 which may be preheated, is covered with a reactive hot-melt mass based on polyurethane by means of a hot-coating process.
  • the reactive hot melt mass is applied by means of a pair of rollers 12, 14, it being possible to vary the application weight and the layer thickness.
  • the application station 6 comprises a metering roller 12 which is in contact with an application roller 14, with the reactive hot melt compound (not shown) in between.
  • the application roller 14 rotates in a direction indicated by arrow 15. With the application roller 14, reactive hot melt mass is applied to a surface 16 of the carrier surface 2 in a certain layer thickness.
  • the reactive molten mass is heated and used in a liquid-viscous state, it being possible to provide heating by means of the metering roller 12.
  • the illustrated embodiment has a smoothing station 18 for smoothing the applied reactive hot-melt mass, with an enclosed smoothing roller 20 running counter to the transport direction 3 of the carrier surface 2, indicated by arrow 22.
  • the smoothing roller 20 is arranged closely following the application roller 14, or stands with it in contact.
  • the smoothing roller 20 makes contact with the carrier surface 2 via the area of the surface 16 covered with the reactive hotmelt.
  • 24 denotes a doctor device which is arranged on the smoothing roller 20 in order to strip off the reactive hotmelt adhering to the smoothing roller 20.
  • Other embodiments of the smoothing station 18 are conceivable, for example a supply of heat, the use of a smoothing belt instead of a smoothing roller 20.
  • the carrier surface 2 covered in this way passes through a processing station 8 in which a paint application takes place, preferably in a so-called wet-on-wet process.
  • a paint application takes place, preferably in a so-called wet-on-wet process.
  • the lacquer used can be any lacquer, preferably a UV-curing lacquer.
  • the processing station 8 is for example for a roller application, as in Figure 1 indicated, designed for spray application or for a curtain coating process.
  • a subsequent curing process can take place, for example, by means of a device 26, in which case UV light or UV lamps can be used.
  • the carrier surface 2 coated in this way is embossed with an embossing form 28 to produce a three-dimensional one Structure of the surface.
  • the processing station 10 also referred to as an embossing station, comprises an embossing form 28 embodied as a pair of rollers with a printing and an impression cylinder 30, 32.
  • the printing cylinder 30 has a casing, on the surface of which elevations and depressions are formed, which are embossed as a negative shape when rolling on the surface of the carrier surface 2 coated in this way.
  • the elevations and depressions are designed in terms of their distribution as well as their depth and shape in such a way that a natural feel is reproduced.
  • the embossing can take place by means of an embossing die 28 designed as a press plate by means of a short-cycle press.
  • the embossing form 28 can be replaced by a corresponding Heating device are heated, wherein the curing of the previously applied layers is advantageously achieved combined with increased adhesion.

Claims (15)

  1. Procédé de fabrication de surfaces structurées sur une surface support (2), comprenant les étapes suivantes :
    a) l'application d'une couche d'une masse réactive en fusion réticulant à l'humidité, à base d'un polyuréthane, sur au moins une partie d'une surface (16) de la surface support (2) ;
    b) l'estampage de la surface de la couche appliquée dans une étape précédente avec un moule d'estampage (28), qui comprend un moule négatif d'une structure tridimensionnelle à générer sur la surface support (2), ainsi qu'une étape
    c) dans laquelle une couche de laque est appliquée sur la surface support (2) garnie avec la masse réactive en fusion, et l'application de laque ayant lieu après l'étape a) et avant l'étape d'estampage b) ou aussi bien avant qu'après l'étape d'estampage b).
  2. Procédé selon la revendication 1, caractérisé en ce que la masse réactive en fusion à base d'un polyuréthane dans l'étape a) est une masse en fusion durcissable par rayonnement, contenant au moins un groupe fonctionnel polymérisable par exposition à un rayonnement.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'à la suite de l'étape a), une étape est prévue, dans laquelle la couche de masse réactive en fusion à base d'un polyuréthane appliquée sur la surface support (2) est lissée.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'estampage dans l'étape b) a lieu directement sans délai temporel ou a lieu avec un délai temporel, qui se situe dans la plage allant de 20 secondes à 72 h.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'estampage dans l'étape b) a lieu avec un moule d'estampage (28) plat ou configuré sous la forme d'un cylindre d'estampage.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'estampage dans l'étape b) a lieu à une température dans la plage allant de 20 °C à 180 °C, le moule d'estampage (28) étant chauffé.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'estampage dans l'étape b) a lieu au moyen d'un moule d'estampage (28) configuré sous la forme d'une matrice, en un matériau choisi parmi le métal, le plastique, le bois, le caoutchouc, la pierre et le textile, ou au moyen d'un moule d'estampage (28) configuré sous la forme d'un cylindre d'estampage, en un matériau choisi parmi le métal, le plastique, le bois, le caoutchouc et le textile, ou au moyen d'un moule d'estampage (28) configuré sous la forme d'un film de transfert structuré, en un matériau choisi parmi le métal, le plastique et le textile.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'une décoration est appliquée sur la surface support (2) avant l'application de la masse réactive en fusion dans l'étape a), la décoration étant imprimée directement ou numériquement sur au moins une partie de la surface (16) de la surface support (2).
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'un article en bande muni d'une décoration est appliqué sur la surface support (2) avant l'application de la masse réactive en fusion dans l'étape a) .
  10. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'un revêtement HotCoating coloré est appliqué sur la surface support (2) avant l'application de la masse réactive en fusion dans l'étape a).
  11. Procédé selon l'une quelconque des revendications 1 à 10, caractérisé en ce que la structure tridimensionnelle générée par estampage dans l'étape b) est synchronisée avec la décoration appliquée.
  12. Procédé selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la surface support (2) est un panneau en un matériau à base de bois, un panneau lié inorganiquement, un panneau en plastique, un panneau compact, un panneau en construction en sandwich, un panneau de construction légère et/ou un linoléum.
  13. Procédé selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la structure tridimensionnelle générée par estampage dans l'étape b) s'étend dans les couches appliquées sur la surface support (2).
  14. Procédé selon l'une quelconque des revendications 1 à 13, caractérisé en ce que la structure tridimensionnelle générée par estampage dans l'étape b) s'étend jusque dans la surface support (2).
  15. Procédé selon l'une quelconque des revendications 1 à 14, caractérisé en ce que la masse réactive en fusion est monocomposante.
EP16723263.6A 2015-04-30 2016-04-26 Procédé de réalisation de surfaces structurées et objets ainsi structurés Active EP3288688B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201631323T SI3288688T1 (sl) 2015-04-30 2016-04-26 Postopek za izdelavo strukturiranih površin in predmeti, strukturirani na tak način
PL16723263T PL3288688T3 (pl) 2015-04-30 2016-04-26 Sposób wytwarzania ustrukturyzowanych powierzchni i wyroby ustrukturyzowane w ten sposób

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015005495.3A DE102015005495A1 (de) 2015-04-30 2015-04-30 Verfahren zur Herstellung von strukturierten Oberflächen und derart strukturierte Gegenstände
PCT/EP2016/059267 WO2016174021A1 (fr) 2015-04-30 2016-04-26 Procédé de réalisation de surfaces structurées et objets ainsi structurés

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EP3288688A1 EP3288688A1 (fr) 2018-03-07
EP3288688B1 true EP3288688B1 (fr) 2021-06-09

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US (1) US20180353992A1 (fr)
EP (1) EP3288688B1 (fr)
JP (1) JP6672333B2 (fr)
CN (1) CN107530734B (fr)
AU (1) AU2016256168B2 (fr)
CA (1) CA2980263C (fr)
DE (1) DE102015005495A1 (fr)
ES (1) ES2883250T3 (fr)
LT (1) LT3288688T (fr)
PL (1) PL3288688T3 (fr)
PT (1) PT3288688T (fr)
RU (1) RU2692347C2 (fr)
SI (1) SI3288688T1 (fr)
WO (1) WO2016174021A1 (fr)

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Publication number Publication date
ES2883250T3 (es) 2021-12-07
RU2017134505A (ru) 2019-04-05
CN107530734A (zh) 2018-01-02
BR112017019438A2 (pt) 2018-05-02
DE102015005495A1 (de) 2016-11-03
AU2016256168B2 (en) 2021-04-08
WO2016174021A1 (fr) 2016-11-03
AU2016256168A1 (en) 2017-10-12
RU2017134505A3 (fr) 2019-04-18
PT3288688T (pt) 2021-08-16
US20180353992A1 (en) 2018-12-13
JP2018516780A (ja) 2018-06-28
RU2692347C2 (ru) 2019-06-24
LT3288688T (lt) 2021-09-10
PL3288688T3 (pl) 2021-12-13
JP6672333B2 (ja) 2020-03-25
SI3288688T1 (sl) 2021-10-29
CA2980263A1 (fr) 2016-11-03
CA2980263C (fr) 2023-02-21
EP3288688A1 (fr) 2018-03-07
CN107530734B (zh) 2021-07-30

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