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
  • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
  • B41M5/52—Macromolecular coatings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M1/00—Inking and printing with a printer's forme
  • B41M1/26—Printing on other surfaces than ordinary paper
  • B41M1/38—Printing on other surfaces than ordinary paper on wooden surfaces, leather, or linoleum
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C5/00—Processes for producing special ornamental bodies
  • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
  • B44C5/043—Ornamental plaques, e.g. decorative panels, decorative veneers containing wooden elements
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/02—Flooring or floor layers composed of a number of similar elements
• • 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
  • B05D2203/00—Other substrates
  • B05D2203/20—Wood or similar material
• • 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
  • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
• • 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
  • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
  • B41M5/52—Macromolecular coatings
  • B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • B41M5/5281—Polyurethanes or polyureas
• • 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
  • B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
• • 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
  • B41M7/0045—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or film forming compositions cured by mechanical wave energy, e.g. ultrasonics, cured by electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams, or cured by magnetic or electric fields, e.g. electric discharge, plasma
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/02—Flooring or floor layers composed of a number of similar elements
  • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members

Definitions

• the present invention relates to a method of making a panel having a decorative surface, the panel being made of a lignocellulosic material-based support material, such as a sheet metal. Chipboard, OSB board or fiber board is made. Likewise, the invention relates to a plate having a decor having a surface and a use of the plate as a floor panel or as a furniture board.
• decorative surfaces are achieved on said substrates by coating with printed papers.
• These processes typically use a plurality of papers impregnated with synthetic resin, preferably melamine, melamine / urea or phenolic resins. At elevated pressure and temperature, these are then pressed either directly (Direct Pressure Laminate (DPL)) or only after their processing into a laminate with the substrate (High Pressure Laminate (HPL) or Continuous Pressure Laminate (CPL)).
• DPL Direct Pressure Laminate
• HPL High Pressure Laminate
• CPL Continuous Pressure Laminate
• the papers containing the décor can be freely designed in their color, printed with any desired decors such as wood decors, tile or stone decors, fantasy decors and all other conceivable motifs and patterns.
• the impregnated papers (laminates) with Hard solid particles equip to achieve appropriate resistance to superficial wear.
• particles of quartz, nitrides and carbides SiO 2 and corundum (OC-Al 2 O 3 ) are known. Recently, however, the use of very small particles of glass or diamond has become known here.
• the following layers are applied to achieve a decorative surface on a lignocellulose-based carrier material depending on the intended use of the workpieces and the demands placed on their resistance, wherein a pre-treatment may precede by grinding:
• Primer As a first treatment step, the surface to be treated is usually prepared with a primer (adhesion promoter) for a subsequent coating.
• the primer preferably consists of the same basic components as the subsequently applied layer.
• Filler These have the task on the one hand to reduce the absorption of the substrate and also to provide adhesion to the subsequent layers. Depending on the requirements arising from the later field of use of the workpieces and thus from the subsequently applied layers, it may be useful to apply the filler in two or more operations which may be an intermediate or at least partially hardened. In addition, the filler also serves to fill in irregularities in the surface in order to compensate for them.
• Primer This is applied after at least partial hardening of the filler.
• the purpose of the primer which can also be built up again from different individual layers with intermediate or subsequent, at least partial curing, is to achieve the prevailing in the decor basic shade. For most wood finishes, coatings with beige to brown shades or even red shades are predominantly applied in this work step.
• Printing ink Depending on the color variety of the decoration to be applied and the desired lot sizes, the printing process known from the prior art, such as, for example, the stencil printing process or the offset printing process, is used in this step desired printed image applied. The use of digital printing methods is also already known for this field of application.
• Sealing Just as with the sealing of solid wood surfaces, with comparable methods a protection of the surface and also an improved visual appearance is achieved. The only difference is that it is a previously applied decor is coated and not a predetermined from the use of solid wood image. In addition to the upgrading of the decoration applied by the preceding step, protection against external influences should thus also be achieved in order to obtain the desired optical quality over the intended period of application. For example, by selecting the appropriate seal, the desired degree of gloss of the surface, a given scratch resistance or a specific abrasion resistance can be achieved. Depending on the various optical properties and the loads to be expected, the number of layers applied here is selected, which are optionally hardened in order to bring about a partial crosslinking coordinated with the subsequent steps.
• the predominantly used radiation-curable systems here can also contain hard particles to achieve high abrasion resistance. It is also possible to scatter the particles on a not yet or already partially cured layer in order to achieve the desired abrasionsresistenten properties.
• By selecting different particle sizes in or on the different layers their use can be optimized, for example, the choice of small particle sizes in or on one of the upper layers has as proved to be favorable for achieving high abrasion resistance.
• Other additives such as so-called UV absorbers, which form an increased protection against UV radiation and so prevent unwanted premature yellowing, may be included in the seal to achieve desired optical properties or to obtain these over the intended period of application.
• An opening provided for a subsequent grinding layer may be applied to the desired smoothness of the end product to achieve 'between the sealing layers.
• the systems used can be based on organic solvents or else be water-based. To harden the various layers, it is possible to adjust the temperature, UV radiation, ionizing radiation such as electron beams, or other methods and devices known for said purposes, may be used alone or in combination.
• An advantage of printing on the panels, rather than laminating the panels with a laminate, is that a backing layer on the back of the panel can be avoided. As a result, the production costs can be further reduced.
• the image in particular is also impaired by the fact that the roughness of the surface leads to a running of the individual pixels with each other. Even if, for example, it has been printed with a resolution of 54 dots per cm or 2,916 dots per cm 2 , the picture shows a lower resolution, since the pixels are no longer clearly separated from each other.
• the present invention is therefore based on the technical problem of providing a method by means of which decorative surfaces with improved optical properties can be obtained on sheets of a carrier material based on lignocellulosic material by direct printing.
• the aim is to produce optical properties of such quality that the panels produced from them are also used in areas may have to meet increased visual requirements due to their exposure.
• paint layers are to be avoided in whole or in part in order to minimize manufacturing costs and production costs.
• a smoothing of the surface by means of a smoothing device is provided prior to printing on the carrier material based on lignocellulosic material.
• the smoothing device equalizes any irregularities in the surface after priming and thus achieves an optimally flat surface.
• any fibers still projecting from the primer or the so-called cloudiness which arises on the end product as a result of different coating thicknesses before printing can be used be prevented, which is caused by a non-uniformity of the color of the surface to be printed, so due to a shine through the substrate.
• the reason for printing, ie the primed surface is thus characterized by an improved suitability for achieving a high-quality printing quality, which in addition to the regularity and reproducibility also has a particularly good sharpness and brilliance of the printed image.
• the inventive method resolution of more than 54 points per cm bzs. 2,916 points per cm 2 , in particular greater than or equal to 60 points per cm or 3,600 points per cm 2 . In particular, a resolution of greater than or equal to 70 points per cm or 4,900 points per cm 2 can be achieved.
• the smoothing be carried out shortly before printing, ie in particular within a period of time of less than 1 minute, preferably less than 10 seconds and preferably less than 5 seconds before printing.
• the contact between the surface to be smoothed and the contact surface is preferably over the entire surface. Therefore, the entire surface to be smoothed comes into contact brought with the contact surface. It is advantageous that the entire surface is brought evenly into contact with the contact surface.
• the contact surface is formed substantially flat in a first embodiment, so that at least in each case a flat portion of the surface comes into contact with the contact surface. This method thus offers itself in a clocking process.
• Such a roller can be driven with the aid of suitable drive means, for example by means of a motor, and exert a relative movement to the machined surface by rotation in co-rotation or counter-rotation. Likewise, the roller can be moved so that no relative movement between the roller surface and the surface of the plate is formed.
• Another possibility for achieving the desired ironing effect is to arrange the heatable rollers at an angle, so that their axis of rotation extends in another than at right angles to the direction of movement of the surface to be treated.
• a relative movement of the surfaces in contact can be achieved, which will be different depending on the degree of rotation axis deviation.
• the dabai occurring steering effects by the inclination The roller must be taken into account when transporting the plate.
• a similar effect can be achieved with rollers oscillating along the axis. This increases the uniformity of the smoothing, in particular in connection with a rotation of the roller.
• a positive guidance of the plate is advantageous in order to allow a controlled guiding of the plate and to prevent slipping of the plate.
• the applied contact pressure which is exerted by the smoothing device on the surface to be treated, is preferably kept constant during the application of the method.
• the Anyakdurck is to at least depending on the design of the smoothing device, the selected relative speed between the smoothing device and the plate, the type of carrier material, the composition of the primer and the
• Feed rate adjusted can be stored electronically, which can be adjusted automatically when changing the feed rate or another parameter, all others.
• coated metals can also be used, with coatings based on Teflon having proven suitable as coatings.
• hard chromium-plated or nickel-plated metal surfaces or plastics or coated plastics can be used. This gives a high surface smoothness favorable thermal properties, whereby a good ironing effect can be achieved.
• the surface smoothness of the smoothing tool can be characterized with values of 0.06 to 6 ⁇ m roughness.
• the invention has been described in terms of smoothing one or more layers.
• a further aspect of the invention is discussed, which is independent of the smoothing and also improves the quality of the painted plate. It is about the replacement of one or more primer, dye and / or Coating layers by a synthetic resin, which preferably consists of a polyurethane-based synthetic resin system.
• the above-indicated technical problem is also solved by a method for producing a plate having a surface comprising a decor, wherein the plate consists of a carrier material based on lignocellulosic material, in which the surface to be decorated is primed with at least one primer layer in which the primed surface is printed to produce the decoration, wherein the printed surface is sealed with at least one sealing layer and wherein at least one primer layer is applied as a synthetic resin layer.
• Adhesive properties of this type of primer could be dispensed with the usual use of a filler, and the primer as well as on UV coatings.
• the resulting cost savings are significant. Because in addition to a significantly smaller size of the manufacturing plant by reducing the processing stages, the cost savings is achieved by cheaper substances.
• the order quantities are from 40 to 100 g / m 2 .
• the exact order quantities depend on the surface to be coated and the synthetic resin used.
• a resin system based on polyurethane is applied as synthetic resin. This type of resin system is known and has already proven itself in other applications.
• resin system other systems may be used, for example, those based on epoxy resins or polyester resins.
• a bonding agent is applied to the surface to be printed in front of the at least one primer layer of synthetic resin.
• the connection of the synthetic resin to the surface of the carrier material could be improved.
• An advantage of using a resin system for the primer layer is that the resin layer itself can be color matched to the primer color to be achieved. Thus, one obtains a finished primer for the subsequent printing of the decor in one step.
• the coloring of the resin is difficult to adjust.
• a further primer layer of a coloring paint existing primer is applied. This application can be more reliable and, if necessary, less expensive than coloring the synthetic resin itself. It depends on the individual case, whether it is advantageous to color the resin itself or to apply an additional, coloring paint.
• Another advantage of using a synthetic resin layer as a primer is the ability of the resin to be smoothed in a simple manner.
• smoothing a method can be used which has already been explained above for smoothing a primer consisting of a lacquer.
• the above-indicated technical problem is also solved by a method for producing a plate having a surface comprising a decor, wherein the plate consists of a carrier material based on lignocellulosic material, in which the surface to be decorated is primed with at least one primer layer in which the primed surface is printed to produce the decor, wherein the printed surface is sealed with at least one sealing layer and wherein at least one sealing layer is applied as a synthetic resin layer.
• this layer is produced from a synthetic resin. Since the cured synthetic resin layer has good abrasion values and hardness values, the use of a synthetic resin layer as a sealing layer largely avoids the expensive UV-curable coatings containing microparticles or nanoparticles.
• values of 40 to 100 g / m 2 are also suitable.
• the exact order quantities depend on the to be coated surface and the resin used.
• sealing layer is also valid that this can be improved by the addition of particles, for example. From corundum, silica or glass, in their abrasion resistance.
• a further advantage is that the grinding operations required in the application of paints are avoided both in the production of a primer layer and in the production of a sealing layer. Because the synthetic resin layer can be smoothed without a subsequent grinding so that the resulting surface meets the requirements. The omission of the grinding operations means in particular for the process a significant advantage, because the resulting dusts do not need to be removed and disposed of, but the occurring during grinding material loss is completely avoided. In particular, the grinding of the paints has led to an expensive loss of material, which completely avoids the invention.
• a lacquer layer containing particles preferably a lacquer layer having corundum particles
• the cost advantage is given up in this case to a part, but the abrasion resistance is increased, so that the method is also suitable for the production of plates with particularly high demands.
• the lacquer layer does not have to be ground before the synthetic resin layer is applied.
• the paint layer is preferably cured with UV radiation.
• the lacquer layer has particles with an average particle size of 1 to 100 ⁇ m.
• a particle-containing lacquer layer is applied, which is preferably cured with UV radiation and in particular contains particles having an average size of 100 nra to 1 ⁇ m (nanoparticles).
• the particles are preferably made of mineral-based materials such as silica or glass. It is therefore a so-called nano-lacquer.
• this embodiment of the method has been found to be advantageous for applications with particularly high demands on the surface hardness, even if a part of the cost advantage described above is abandoned.
• a further embodiment of the method is that the surface of the sealing layer or the lacquer layer is provided with a surface structure.
• a surface structure can be created that is in accordance with the decorative image.
• wood patterns can be imitated faithfully if both the optical pattern matches the haptic pattern.
• the above-indicated technical problem is also solved by a plate having a carrier material based on lignocellulosic material, a surface having a primer layer and a decor printed on the primer layer, the primer layer having a roughness depth of less than 15 ⁇ m.
• a roughness depth is preferred less than 10 ⁇ m, in which case the requirements for the smoothing tools and their use are increased. In a particularly good setting even a surface roughness of 6 to 8 microns can be achieved, has.
• This low roughness can be produced in particular by the above-described smoothing method, which is also part of the invention.
• the low roughness allows an unprecedented image quality.
• a plate with a carrier material based on lignocellulosic material with a surface having a primer layer and with a decoration printed on the primer layer, wherein the print image has a resolution of more than 54 points per cm, in particular greater equal to 60 points per cm, preferably greater than or equal to 70 points per cm.
• the high print quality can be achieved in particular by the application of the method according to the invention described above.
• the print quality can be achieved by the previously explained low roughness of the surface of the primer layer.
• a plate having a carrier material based on lignocellulosic material, a surface having a primer layer and a decor printed on the primer layer, wherein the primer layer at least partially consists of a synthetic resin.
• the synthetic resin preferably consists of a polyurethane-based synthetic resin system.
• a layer consisting of an adhesion promoter is preferably arranged between the carrier material and the primer layer consisting of synthetic resin.
• the primer layer made of synthetic resin may be color-matched to the primer color to be achieved. This allows a direct printing of the primer layer, without the need for another layer. However, this is only possible as far as that the resin can be colored with the desired color.
• a primer consisting of a lacquer is arranged on the primer layer consisting of synthetic resin.
• the existing of a conventional primer primer can be easily adapted to the desired color.
• the primer layer made of synthetic resin has a surface roughness of less than 15 microns, in particular of less than 10 microns, preferably from 6 to 8 microns. In this case, a good print quality can be achieved, which allows an improved and thus even more faithful reproduction of subjects.
• the technical problem indicated above is also achieved according to the invention by a plate having a lignocellulosic material-based carrier material, a surface having a primer layer, a decor printed on the undercoat layer, and a sealant layer applied to the printed decor, at least the sealant layer partially made of a synthetic resin.
• the synthetic resin is preferably made of a polyurethane based resin system.
• the primer layer can be made of a resin system. Because it has been recognized - that the hardness and abrasion resistance of the resin sufficient for a number of plate application, without a UV-curable sealing lacquer is needed. For a variety of applications, these properties are sufficient and the manufacturing cost of the board can be reduced.
• a particle-containing lacquer layer preferably a corundum particle
• Paint layer is arranged between the printed decorative layer and the sealing layer consisting of synthetic resin Paint layer.
• This lacquer layer preferably has particles with an average particle size of 1 to 100 ⁇ m. Even larger particle sizes are possible.
• a particle-containing lacquer layer can be arranged on the sealing layer made of synthetic resin, wherein here too the lacquer layer can be cured with UV radiation.
• the lacquer layer preferably has particles with a mean size of 100 m to 1 ⁇ m. This additional layer can be used to improve surface hardness and abrasion resistance for special applications.
• the surface of the sealing layer or the lacquer layer has a surface structure.
• a match between the optical pattern and the haptic pattern can be achieved.
• an already ground medium density fibreboard (MDF board) with a thickness of 5.8 mm and a density of about 660 to 900 kg / m 3 in a system in which successively primer, filler, primer, printing ink and Seal can be applied, retracted.
• MDF board medium density fibreboard
• After a brushing station, which removes any impurities or grinding dust about 15 g / m 2 are applied by means of applicator rolls in a first stage and about 25 g / m 2 of filler in a second stage, wherein an intermediate drying always follows.
• the primer held in the basic shade of the desired décor is rolled onto the base material of this type, wherein in each case about 15 g / m 2 are applied and again after each application a partial drying follows.
• polished steel rollers with a relative speed of about 0 to 10 m / min and with a contact pressure of about 50 to 100 N / m over the width of Plate of the smoothing process according to the invention.
• the thus treated plate has over its entire surface a level in color, texture and gloss level surface. Also, no fibers that extend from the substrate into the coating film can be seen. The fibers can still be recognizable in the surface after smoothing.
• a wood decor is printed on three printing units which are composed of a printing cylinder with dyeing and dampening rollers and a blanket cylinder with counter-pressure cylinder. This procedure is also called indirect Teiftik called. Likewise, other printing techniques can be used, for example. Offset printing method.
• a UV-curable coating system is applied in three parts.
• the first part consists of two corundum-containing layers of about 35 g / m 2 order quantity, each with subsequent intermediate curing. This is followed by a non-corundum UV varnish which, after intermediate curing in a subsequent intermediate sanding with grits 280 and 320, causes an additional leveling of the surface.
• the final part of the sealing then forms an applied again in two stages, provided with corundum UV curable coating layer with, for example, 7 ⁇ and 8 g / m 2 application amount, wherein the corundum particles contained here on average smaller particle sizes than the particles of the previous lacquer layers ,
• every coating application is followed by intermediate hardening. If desired, this step can be followed by embossing a surface profile.
• the final cross-linking of the various components is effected.
• the plates obtained are separated after a lying time of about 24 hours for temperature compensation and post-curing in a conventional manner to panels, provided with edge profiles and packaged.
• the resulting floor panels are characterized by a regular, brilliant appearance and precise contrasts in the decor.
• a 24 mm thick, sanded chipboard with a density of 590 kg / m 3 is coated in the rolling process with a pigmented hotmelt adhesive.
• the contact surface here consists of a Teflon-coated steel roller, which oscillates over its longitudinal axis at 12 short strokes (about 4 cm) per second with a relative speed of 33 m / s (corresponding to a roll diameter of 350 mm about a speed of 1800 min "1 ) in the mating and a Contact pressure of 180 N / m moves, the smoothing and thus providing the desired, optimal printing reason instead.
• the plate Before the final final curing of the coating, the plate is still provided with the aid of an embossing roller with a structure that is intended to cause a lower gloss level, so that grip marks as they are expected in office furniture surfaces, optically less prominent.
• the gloss level can also be adjusted chemically in the paint itself.
• the embossing roll can also be used for introducing a surface profiling in order to produce a profiling which matches the decor.
• the resulting decorative surface of the thus treated plate is characterized by the high-quality decorative image, in comparison to the conventional laminate coating, lower resulting production costs.
• a plate with a primer of a synthetic resin layer To produce a panel which can be used, for example, as a floor panel, an already ground medium-density fiberboard (MDF panel) with a thickness of 5.8 mm and a density of about 660 to 900 kg / m 3 in a plant in the successively primer, ink and seal can be applied, retracted.
• MDF panel ground medium-density fiberboard
• a primer made of a polyurethane-based resin system is applied by means of applicator rollers at an application rate of about 70 g / m 2 .
• the primer layer is applied in the heated state.
• the synthetic resin has been provided with a coloration before application, so that the resulting primer layer is suitable for direct printing.
• a wood decor is printed on three printing units which are composed of a printing cylinder with dyeing and dampening rollers and a blanket cylinder with counter-pressure cylinder.
• a UV-curable coating system is applied in three parts.
• the first part consists of two corundum-containing layers of about 35 g / m 2 order quantity, each with subsequent intermediate curing. This is followed by a non-corundum UV varnish which, after intermediate curing in a subsequent intermediate sanding with grits 280 and 320, causes an additional leveling of the surface.
• the final part of the sealing then forms an applied again in two stages, provided with corundum particles UV-curable lacquer layer with, for example, 7 and 8 g / m 2 application amount, wherein the corundum particles contained here have on average smaller particle sizes than the particles of the previous lacquer layers.
• every coating application is followed by intermediate hardening. If desired, this step can be followed by embossing a surface profile.
• the final cross-linking of the various components is effected.
• the resulting panels are characterized by a regular, brilliant appearance and precise contrasts in the decor.
• an already ground medium density fiberboard (MDF panel) with a thickness of 5.8 mm and a density of about 660 to 900 kg / m 3 in a plant in the successively primer, filler, primer, ink and sealant can be applied, retracted.
• MDF panel ground medium density fiberboard
• the primer held in the basic shade of the desired décor is rolled onto the base material of this type, wherein in each case about 15 g / m 2 are applied and again after each application a partial drying follows.
• polished steel rollers with a relative speed of about 0 to 10 m / min and with a contact pressure of about 50 to 100 N / m over the width of Plate of the smoothing process according to the invention.
• the thus treated plate has over its entire surface a level in color, texture and gloss level surface. Also, there are no fibers coming out of the Substrate in the coating film rich, recognizable. The fibers can still be recognizable in the surface after smoothing.
• a wood decor is printed on three printing units which are composed of a printing cylinder with dyeing and dampening rollers and a blanket cylinder with counter-pressure cylinder.
• a sealing layer made of a polyurethane based resin system is applied by means of applicator rollers.
• the order quantity is 70 g / m 2 .
• the polyurethane-based resin is heated to ensure proper processing.
• the resulting panels are characterized by a regular, brilliant appearance and precise contrasts in the decor.
• an already ground medium-density fiberboard (MDF panel) with a thickness of 5.8 mm and a density of about 660 to 900 kg / m 3 in a plant in the successively primer
• ink and seal can be applied, retracted.
• a brushing station which removes any impurities or grinding dust
• about 70 g / m 2 a primer made of a polyurethane-based resin system are applied by applicator rollers. The primer layer is applied in the heated state.
• the synthetic resin has been provided with a coloration before application, so that the resulting primer layer is suitable for direct printing.
• the plate of the smoothing process at a feed rate of, for example, 32 m / min with the help of tempered at 160 0 C ' polished ' steel rollers with a relative speed of about 0 to 10 m / min and with a contact pressure of about 50 to 100 N / m across the width the plate of the smoothing process according to the invention.
• the thus treated plate has over its entire surface a level in color, texture and gloss level surface. Also, no fibers that extend from the substrate into the coating film can be seen.
• the synthetic resin layer is completely solidified by cooling.
• a wood decor is printed on three printing units which are composed of a printing cylinder with dyeing and dampening rollers and a blanket cylinder with counter-pressure cylinder.
• a sealing layer made of a polyurethane-based resin system is applied by means of applicator rollers.
• the order quantity is 70 g / m 2 .
• the polyurethane resin is heated to ensure proper processing.
• the applied sealing layer is initially only partially cooled and smoothed by means of a smoothing device.
• a smoothing device For this purpose, at a feed rate of, for example, 32 m / min with the aid of heated to 160 0 C, polished steel rollers with a relative speed of about 0 to 10 m / min and with a contact pressure of about 50 to 100 N / m over the width of Plate of the smoothing process according to the invention.
• the thus treated plate has over its entire surface on a level in color, structure and gloss level .Ober Design. Also, no fibers that extend from the substrate into the coating film are recognizable.
• the synthetic resin layer is completely solidified by cooling.
• the resulting panels are characterized by a regular, brilliant appearance and precise contrasts in the decor.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Life Sciences & Earth Sciences (AREA)
• Wood Science & Technology (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Laminated Bodies (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Finishing Walls (AREA)
• Floor Finish (AREA)
• Printing Methods (AREA)

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Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

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• 2004
  • 2004-07-01 DE DE102004032058A patent/DE102004032058B4/de not_active Expired - Fee Related
• 2005
  • 2005-06-30 DE DE502005009368T patent/DE502005009368D1/de not_active Expired - Lifetime
  • 2005-06-30 UA UAA200613301A patent/UA87315C2/ru unknown
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