MXPA97010307A - Procedure for the manufacture of a laminated material plastic thermofly decorat - Google Patents

Abstract

The present invention relates to a process for manufacturing a decorative thermofix laminate with a wear-resistant surface layer and a scratch-resistant layer, wherein a roll of continuous paper is impregnated with melamine-formaldehyde resin, one side of the continuous paper being It is coated with hard particles with a size of 30-90 m, after drying, the other side is coated with a melamine formaldehyde resin containing hard particles with an average particle size of 1-15 m, the paper is placed after Dry as the highest sheet in the laminated material with the coated side of the smaller particles directed towards the

Description

PROCEDURE PÑRFL LÑ MANUFACTURING OF A PLASTIC LAMINATED MATERIAL TERMQFI3Q DECORATIVE MEMORY DESCRIPTIVE The invention relates to a process for the manufacture of a decorative laminate material with a surface layer resistant to scratching and scoring. Decorative decorative laminate materials are well known and are used, for example, as surface material for walls, side doors, desk tops, table tops, for other furniture and as floor material. Such laminated materials are often made from two to seven sheets of Kraft paper impregnated with phenol-formaldehyde ream, or a decorative paper sheet, design or design, and pre-coated with rnelaininfopnaldehyde resin, and a so-called thin-film overlay sheet. -cellulose impregnated with ream of nneraln deforum. The overlay sheet has the purpose of overprotecting the decorative paper sheet against scratching. In some cases the overlap sheet is omitted. There are also laminated materials consisting of a base layer of particleboard or fiberboard provided with such a decorative sheet of paper and possibly a hoop of overlap. These sheets can be laminated to the base layer ba or heat and pressure. c? If you use only a decorative sheet of paper, you can adhere to the base layer. The laminated materials described have in fact many advantageous properties, however, it has turned out that there is a great need to increase the scratch resistance and the scratch resistance on the surfaces of the laminated materials exposed to extreme scrapes. This is especially the case of laminate flooring materials, but also to some extent for laminate materials for desktops and table tops. According to the Patent of E.U.A. 5,940,503 the scratch resistance of such laminated materials has been satisfactorily improved. A roll of continuous paper is then impregnated with nylon foil. At least one side of continuous paper is coated with small, hard, dry particles with an average particle size of about 1-80 μm, distributed one-way over the wet resin surface of the continuous paper after which the paper is dried. to. The continuous paper coated with particles, called pre-preg material, is possibly cut afterwards into sheets. At least one such continuous sheet or paper is placed as a surface layer on a base layer and adhered thereto. The laminate produced in this way will have an advantageous resistance to scratching.

The hard particles used according to the invention again have an average particle size of about 50 urn, which is an advantage from a point of view of scratch wear. It has turned out, however, that the resistance to the scratching of the laminated materials produced in the known manner is not always satisfactory. In addition, the pressing plates used during the lamination step are abraded by the relatively large particles on the surface of the rolled material, the pressing plates are very expensive and are made of a high quality steel. Intermediate layers of disposable aluminum foil are often used to protect these pressing layers which affects the cost of production. There is a need to be able to produce a decorative laminate resistant to scratching and scratching and to avoid the aforementioned problems. It has been possible in accordance with the present invention to achieve a process for the manufacture of a decorative thermoset laminate with a surface layer resistant to scratches and scratches, laminated material comprising sheets of paper impregnated with thermoset resin. The process is characterized in that the roll of continuous paper is impregnated with metal-wool-paper, because one side of continuous paper is coated at about 2-20 g / rn and preferably at about 6-12 g / m * <.Hard particles with an average particle size of about 30-90 μm, preferably about 40-> 0 μm. The particles are evenly distributed over the entire wet surface of the continuous paper, after which the resin dries. The other side of the roll or a second roll of paper is coated with formaldehyde resin, wherein the resin contains hard particles with an average particle size of about 1-15 μm, preferably approximatively 1-9 μm. and in such an amount that the roll will have about 1-15 g / m2, preferably about 2-10 g / rn2 of these hard particles, after which the resin dries. The roll of paper impregnated with coated particles, called pre-pre-drawn material, is possibly cut into sheets. At least one such sheet or continuous paper is placed as a surface layer on a base layer and adhered to it, whereby the coated surface of the small particles is placed in such a way that it is directed towards the upper side of the base layer. Laminated material and the surface with the larger particles is directed downwards. Alternatively, the first sheet or continuous paper with the smallest particles is placed as the high layer in the laminated material with the particle coated side directed towards the upper side of the laminate and the second continuous paper with the larger particles is placed. Place below the top layer with the particle-coated surface facing outward. Hard particles may consist of many different materials. Especially suitable maternal ones are lnox or silicon, oxy or aluminum and / or silicon carbide. An ezcla between two or more materials is also corespondi ent emen t or pos ib 1 e. The base layer may consist of a fiber sheet or a particle board, whereby the paper sheet coated with particles adheres to the base layer by laminating under heat and pressure or by gumming. The base layer may also consist of a number of continuous papers of pre-preg material or continuous sheets of conventional dry prepreg material respectively that are not coated with particles. The continuous paper or the particle-coated sheet respectively is placed on top of these conventional continuous papers or sheets, whereby the ream of the higher part of these continuous papers or sheets respectively consist again of inelarninforrnal resin dehido, while that the rest of the continuous papers or sheets respectively contain preferably formaldehyde phenol resin or phenolureafopnal resin due, after which the papers continuous to a portion of sheets respectively are continuously or discontinuously laminated respectively to each other with the layer of surface using high pressure and increased temperature. The continuous paper or the sheet of paper coated with particles often consists of a so-called overlay paper, preferably a-cellulose.

It is also possible to coat the so-called decorative paper with hard particles. The decorative sheet can be of design or monochrome. In some cases it is possible to coat the hovering sheet as well as the decorative sheet with particles or use two or more overlay sheets or decorative sheets coated with particles. It is also possible to place a conventional overlay non-coated with particles on top of the sheet or sheets coated with particles. The invention will be explained to a greater degree in connection with the following Examples of embodiments, of which Examples 1-7 illustrate a first embodiment of the invention in which the sheet high in the laminate material consists of a so-called overlay on the side The reverse side of a suspension of mineral wool containing small hard particles and on the underside coated with slightly larger particles in the ream of still wet mold with which the paper has been impregnated. Example 8 represents a laminate of the prior art for comparison, laminate material that was made in accordance with the U.S. Patent. No. 4,940,503 wherein the sheet high in the laminate has been coated with a little large particles in the lower part of the ream of nelarninformaldehyde still wet with which the paper has been impregnated. Examples 9 and 10 represent another embodiment of the invention in which the highest paper of the laminate material is coated (ie, a suspension of small metal particles containing small particles (Juras.) The lower part of this higher sheet is not Instead, a few larger particles have been sprayed onto the still-wet resin on the side of the second sheet of high-grade paper, and pre-coated with a ream of melamine formaldehyde. of comparison beyond the scope of the invention The highest value in the laminate material consists of an overlay which, on the upper side, has been coated with a resin suspension of metal formaldehyde containing small hard particles. The paper sheet is not coated with hard particles or large particles, nor is there a second underlying sheet coated with larger, hard particles.For Examples 1-7 and 9 and according to the invention, it is demonstrated that a very advantageous resistance to the scratches is achieved by the use of small hard particles on the upper side of the higher sheet The slightly larger particles on the lower side of the sheet high or on the side of the next sheet of a very advantageous resistance to scratches. The comparative test according to Example 8 demonstrates that an advantageous scratch resistance is achieved when larger particles are used on the lower side of the high sheet. However, the scratch resistance will be somewhat deficient. The comparative test according to Example 11 demonstrates that an advantageous resistance to scratches is achieved when small hard particles are used on the upper side of the high sheet. Scratch resistance will however be very poor if the larger particles are left on the underside of the paper higher or on the underlying paper. The Examples show the measured resistance to the shaving, measured by two different methods according to the modified version of ASTMD-2197. In the first method, the sample is judged on a sideboard to examine at a distance from the eye the sample of 772-914 rnrn and at an observation angle of 45 and 75 degrees from the surface of the table. The sample is judged according to a classification scale. This first method is called distance. The second method is done in the same way. The person who does the test does decide for himself the angle and the distance so that the real thinning becomes visible. This second method is called real. A low value indicates the best resistance to scratches. In the Examples, the resistance to scratches has been measured only by scratching through the direction of manufacture of the laminated material (paper), since a thinning becomes visible in this direction. Sometimes the resistance to scratches is also measured along the length of the lining. Examples of wear and tear are determined in accordance with FN 438-2: ñ. According to this standard, scratch wear through the decorative layer of finished laminate materials is measured in two steps. In the first step, the so-called PT (initial point) is measured, where the scrape i nic al begins. In step two, the so-called PE (extreme point) is measured, where 95% of the decoration is worn out completely. Additionally, the standard prescribes that the number of regulations achieved with the checking machine in steps one and two is added and that the sum obtained is divided by 2. In this way 50% of the point of wear by scraping is obtained, which it is usually the figure referred to in the standard printed forms. However, only the Pl is used for this and the following Examples.

EXAMPLE 1 a) A roll of so-called v-cellulose overlay paper with a surface weight of 25 g / rn2 was impregnated with a resin solution of rnelaninformaldehyde up to a resin content of 57% by weight, calculated on a dry impregnated paper. The upper side of the wet continuous paper is sprinkled with particles of aluminum oxide in an amount of 8 g / rn2. The particles have an average size of F-, ü μin. The particles were applied using an appendix as described in the U.S. Patent. ¿940,503. The continuous paper coated with particles was continuously applied to a furnace for heating, where the solvent evaporated while the ream was cured at a so-called stage B. The moisture content of the paper after drying was 10% in that . The other non-sprinkled side of the web was coated with an ormaldehyde resin suspension containing aluminum oxide particles in an amount of 5.3% by weight. The average particle size was 1 μrn. The continuous paper was then continuously dried in an oven until the moisture content of the paper was 7% by weight. The final resin content of the fully impregnated paper was 0% by weight calculated as dry impregnated paper and the total amount of the added particles of aluminum oxide was 8 + 2.7 g / rn2. The continuous paper is cut into sheets of adequate length. b) A role of the so-called or-cellulose overlay paper with a surface weight of 25 g / rn2 was impregnated with a remelting solution of rnelarninforrnaldehyde up to a res content of 70% by weight, calculated on dry impregnated paper . In the upper part of the wet continuous paper, it was sprinkled with aluminum oxide particles in an amount of 7 g / n2 using the same apparatus as in a) above. The particles were of an average size of 50 μm. The web is then dried to a moisture content of 7% by weight. Continuous paper is cut into sheets of the same length as in part a) antepor. c) A roll of the so-called decoration paper with a weight per 100 g / m2 surface is impregnated with a resin solution of non-formaldehyde up to a resin content of 46% by weight, calculated on dry impregnated paper. The impregnated web is dried to a moisture content of 4% by weight. The continuous paper was cut into sheets of the same length as in paragraphs a) and b) above. d) A roll of Kraft paper with a surface weight of 170 g / m 2 was impregnated with a phenol formaldehyde ream solution to a resin content of 28% by weight, calculated on dry impregnated paper. The wet continuous paper is dried to a final moisture content of 7% by weight. The continuous paper was cut into sheets of the same length as before. The sheets impregnated with paper as described in a) -b) above were placed between two pressing plates in the following order: paper a) with the side of the small particles facing outwards, a paper b) with the sprinkled side facing outward, a paper c) and three papers d). Together the three mentioned papers, called base sheets, formed a base layer in the material mine or that was manufactured by 'pressing on the leaves < > n a conventional multi-aperture press for 80 minutes and at a pressure of 85 bar-. The properties of the laminated material manufactured were as follows: Wear by aspasses: 16,100 revolutions. Breakability resistance: transverse / 4 ((distance), transverse / 9 (real).

EXAMPLE 2 The procedure was repeated according to Example 1 with the difference that the melamine formaldehyde suspension from step a) contained aluminum oxide particles with an average size of 3 μm instead of 1 μm. The properties of the laminated material manufactured were as follows: Scratch wear: 14,050 revolutions. Resistance to the raeduras: transversally / 3 ((je distance), transversally / 3 (real).

EXAMPLE 3 The procedure was repeated according to Example 1 with the difference that the melamine suspension for aldehyde of step a) contained 10.6% by weight of particles of aluminum oxide of L? 5.3% by weight. Traditionally, the aluminum oxide particles have an average size of 5 μm instead of L μm. The total amount of particles was 8 + 5.4 g / rn2. The properties of the laminated material manufactured were as follows: Scratch wear: 15,500 revolutions. Resistance to rae d u ra s: t ra n ve r 1 me nt e / 1 (away), t ransversally / 7 (real).

EXAMPLE 4 The procedure was repeated according to the Example 3 With the difference that the suspension of metal-formaldehyde from step a) contained 15.9% by weight of aluminum oxide particles instead of 10.6% by weight. Also in this example, aluminum oxide particles have an average size of 5 μm. The total amount of particles was 8 + 8.1 g / rn2. The properties of the laminated material manufactured were as follows: Scratch wear: 14,200 revolutions. Breakability resistance: transversal / 1 (distance), transversal / 1 (real).

L4 EXAMPLE 5 The procedure was repeated according to Example 1 with the difference that the suspension of the formaldehyde lane of step a) contained aluminum oxide particles with an average size of 9 μm instead of 1 μm. The properties of the laminated material manufactured were as follows: Scratch wear: 15,100 revolutions. Breakability resistance: transverse / 3 (distance), transverse / 3 (real).

EXAMPLE 6 a) A roll of so-called o-cellulose overlay paper with a weight per surface of 25 g / rn2 was impregnated with a solution of polyamide resin with a ream content of 57% by weight, calculated on a dry impregnated paper The upper side of the wet continuous paper was sprayed with aluminum oxide particles in an amount of 9 g / rn.sup.2 The particles had an average size of 50. The particles were applied using an apparatus as described in FIG. US Patent 4,940,503 The continuous paper sprinkled with particles was continuously applied to a furnace for heating, where the solvent was evaporated while the resin cured at a so-called stage B.

The moisture content of the paper after drying was 10% by weight. The other non-sprinkled side of the web was coated with a formaldehyde resin suspension containing aluminum oxide particles of 10.6% by weight. The average particle size was 3. The continuous paper was then continuously dried in an oven until the moisture content of the paper was 7% by weight The final resin content of the fully impregnated paperL was 72% in weight calculated as dry impregnated paper and the total amount of added particles of aluminum oxide was 9 + 5.4 g / rn2 b) A roll of so-called a cellulose overlay paper with a surface weight of 25 g / m 2 was impregnated with an informaldehyde ream solution to a resin content of 72% by weight, calculated on dry impregnated paper. The web is then dried to a moisture content of 7% by weight. c) A roll of the so-called decoration paper with a surface weight of 100 g / m 2 was impregnated with a rnelarninforrnaldehi ream solution or up to a resin content of 46% by weight, calculated on dry impregnated paper. The impregnated web is dried to a moisture content of 4% by weight. d) A roll of Kraft paper with a surface weight of 150 g / rn2 was impregnated with a formaldehyde phenol resin solution up to a ream content of 36% by weight, calculated on dry impregnated paper. The wet continuous paper is dried to a final moisture content of 7% by weight. The impregnated continuous papers described in a) -d) above were placed continuously between the two pressing belts of a continuous press in the following order: a) paper with the side of the small particles facing outwards, a paper b), a paper c) and three papers d). The pressing cycle lasted 20 seconds and the pressure was 35 bar. The rolled product was then cut into suitable lengths. The properties of the laminated material manufactured were as follows: Scraper ': 13,900 revolutions. Breakability resistance: transverse / 3 (distance), transverse / 5 (real).

EXAMPLE 7 The procedure was repeated according to the Example 6 with the difference that the ream suspension of metal-formaldehyde from step a) contained aluminum oxide particles in an amount of 5.3% by weight instead of 10.6% by weight. The average size of the particles was 1 μm instead of 3 jjrn, the total amount of aluminum particles added was 9 • + 2.7 g / rn2. The properties of the laminated material manufactured were as follows: Scraper ': 13,900 revolutions. Breakability resistance: t ransversalnently / 5 (distance), transverse force / 7 (r-eaL).

EXAMPLE 8 (a) A roll of the so-called cellulose overlay paper with a surface weight of 25 g / m 2 was impregnated with a resin solution of reduced metal content up to a ream content of 70% by weight, calculated on a dry impregnated paper. The upper side of the wet continuous paper was sprayed with aluminum oxide particles in an amount of 8 g / rn2. The particles had an average size of 50 μr. The continuous paper is then continuously dried in an oven to heat a moisture content of 7% by weight. The other side of the paper was left untreated and therefore was not coated with hard particles. The continuous paper is cut into sheets of adequate length. Steps b), c) and d) were repeated according to Example 1. The sheets of paper impregnated in accordance with a) -d) above were placed between two pressing plates n the following order: a paper a) with the side of the particles facing downwards, a paper b) with the sprinkled side facing outwards, a paper o) and res papers c). The pressing was conducted in the same manner as in Example 1. The properties of the laminated material manufactured were as follows: Scratch wear: 13,550 revolutions. Resistance to the raeduras: Transversalrnente / 31 (of distance), transversalrnente / 41 (real).

EXAMPLE 9 a) A roll of so-called a-cellulose overlay paper with a surface weight of 25 g / rn2 is impregnated with a remelting solution of rnelaminforrnal dehyde to a ream content of 50% by weight, calculated on dry impregnated paper. The paper web is then dried to a moisture content of 7.2% by weight. One side of the paper was coated with a suspension of a resole solution of metal-formaldehyde containing aluminum oxide particles in an amount of 5.0% by weight. The average particle size was 3 μrn. The continuous paper was then continuously dried in an oven until the moisture content in the paper was 8.6% by weight.

The final resin content of the fully impregnated paper was 60% by weight calculated on dry impregnated paper and the total amount of the added particles of aluminum oxide was 3.3 g / rn2. The continuous paper is cut into sheets of adequate length. b) A roll of OI-cellulose decorative paper with a weight per surface of 38 g / m 2 was impregnated with a resin solution of nformal resin to a resin content of 50% by weight, calculated on paper. impregnated dry. The upper side of wet continuous paper was sprayed with aluminum oxide particles in an amount of 9.5 g / rn2 using the same apparatus as in a) above. The particles were of an average size of 50 μrn. The paper web was then dried to a moisture content of 6.7% by weight. The continuous paper was cut into sheets of the same length as in part a) above. c) A monochromatic decorative paper roll with a surface weight of 100 g / rn2 was impregnated with a melamine formaldehyde resin solution up to a ream content of 54% by weight, calculated on dry impregnated paper. The impregnated web is dried to a moisture content of 6.5% by weight. Continuous paper is cut into sheets of the same length as in a) - and b) above. d) A roll of Kraft paper with a surface weight of 170 g / rn2 was impregnated with a solution of phenol form Ldehyde resin up to a resin content of 28% by weight, calculated on a dry impregnated paper is soaked up to a final moisture content of 7% by weight. The continuous paper is cut into sheets of the same length as before. The paper sheets impregnated as described in paragraphs a) -d) above were placed between two pressing plates in the following order: a paper a) with the coated side of particles facing outwards, three papers b) with the sprinkled side facing outward, a paper c) and three papers d). Together the three mentioned papers, called base sheets, formed a base layer of a laminated material that was manufactured by pressing the sheets in a conventional multi-aperture press for 80 minutes and at a pressure of 85 bar. The properties of the laminated material manufactured were as follows: Scratch wear: 26,100 revolutions. Resistance to the raeduras: Transversalrnente / l (of distance), transversalrnente / 9 (real).

EXAMPLE 10 a) A roll of so-called or-cellulose overlay paper with a surface weight of 41 g / rn2 is impregnated with a resin solution of rnelarninforrnaldehyde up to 71 Resin content of 41% by weight, calculated on dry impregnated paper. The paper web is then dried to a moisture content of 0.7% by weight. One side of the paper was coated with a suspension of a formaldehyde resin solution containing aluminum oxide particles in an amount of 5% by weight. The average particle size was 3 μ. The continuous paper was then dried continuously in an oven until the moisture content on the paper was 7.4% by weight. The final resin content of the fully impregnated paper was 63% by weight calculated on dry impregnated paper and the total amount of the added particles of aluminum oxide was 3.3 g / rn2. The continuous paper is cut into sheets of adequate length. b) A roll of decorative paper of a-cellulose design with a surface weight of 41 g / rn2 was impregnated with a resin solution of millimetric resin dehydrated to a ream content of 49% by weight, calculated on dry impregnated paper. . The upper side of wet continuous paper was sprayed with aluminum oxide particles in an amount of 9.5 g / rn2 using the same apparatus as in a) above. The particles were of an average size of 50 μrn. The paper web is then dried to a moisture content of 7% by weight. The continuous paper is cut into sheets of the same length as in part a) above. Steps c) and d) were repeated according to Example 9 and a laminated product of the same form as in the Example was manufactured. The sheets of paper impregnated as described in a) -d) above were placed between two pressing plates in the following order: one paper a) with the side coated with particles facing outwards, three papers b) with the side sprinkled oriented afuer'a, a paper c) and three papers d). The properties of laminated material manufactured as follows: Wear for scrapes: 27,100 revolutions. Resistance to the raeduras: Transversalrnente / 5 (of distance), transversalrnente / 9 (real).

EXAMPLE 11 a) A roll of so-called a-cellulose overlay paper with a surface weight of 25 g / rn2 was impregnated with a resin solution of metal-formaldehyde up to a content of 50% by weight, calculated on dry impregnated paper. The continuous paper is then dried continuously in a furnace for heating. The moisture content in the paper was after drying 10% by weight.

One side of the paper was coated with a suspension of a melamine-naphthalene resin solution containing aluminum oxide particles in an amount of 5.0% by weight. The average particle size e \ -a of 3 μ. The continuous paper was then continuously dried in an oven until the moisture content in the paper was 7% by weight. The final res content of the fully impregnated paper was 70% by weight calculated on dry impregnated paper and the total amount of the added particles of aluminum oxide was 3.3 g / rn2. The continuous paper is cut into sheets of adequate length. b) A roll of so-called decorative paper with a surface weight of 100 g / rn2 was impregnated with a resin solution (freeze-formaldehyde up to a ream content of 46% by weight, calculated on dry impregnated paper. dried to a moisture content of 4% by weight The continuous paper was cut into sheets of the same length as in part a) above. c) A roll of Kraft paper with a surface weight of 170 g / rn2 was impregnated with a solution of phenol formaldehyde resin to a resin content of 28% by weight, calculated on a dry impregnated paper dried to a final content of moisture of 7% by weight. Continuous paper is cut on sheets of the same length as before. The sheets of paper impregnated as described in a) -c) above were placed in two press plates in the following order: a paper with the side coated with particles facing outwards, a paper b) c) and three papers c). Together the three mentioned papers, called base sheets, formed a base layer of a laminated material that was manufactured by pressing the sheets in a conventional multi-aperture press for 00 inutes and at a pressure of 85 bar. The properties of the laminated material manufactured were as follows: Wear by scratches: 200 revolutions. Resistance to the raeduras: Transversalrnente / 5 (of distance), transversalrnente / 9 (real).

Claims (7)

NOVELTY OF THE INVENTION CLAIMS

1. - A procedure for the manufacture of a thermo-decorative or decorative laminate with a scratch-resistant and scratch-resistant surface layer, laminated material including sheets of paper impregnated with terracotta ream, also characterized by a roll of paper continuous is impregnated with metal-formaldehyde resin, because one side of the continuous paper is coated with about 2-20 g / rn2, preferably about 6-12 g / rn2 with hard particles with an average particle size of about 30-90 μrn , preferably of about 40-70 μrn, evenly distributed over the entire wet ream surface of the continuous paper, after which the resin dries, because the other side of the continuous paper or a second continuous paper is coated with a resin of metal-formaldehyde, where the ream contains hard particles with an average particle size of approximately 1-15 μm, preferably approximately 1-9 μrn, and in such an amount that the continuous paper will have a surface coating of about 1-15 g / rn2, preferably about 2-10 y / rn2 of these hard particles, because the resin dries, because the Continuous paper impregnated and coated with particles is possibly cut into sheets, because at least one such continuous sheet or paper is placed in a surface layer on a base layer and adhered thereto whereupon the coated surface The smallest particles are placed in the direction of the upper side of the rolled product and the surface with the larger particles is directed downwards, alternately because the first sheet or paper continues with the smaller particles. As the upper layer in the laminate material with the particle coated side directed towards the upper side of the rolled product and because the second sheet or continuous paper with the large particles They are placed under the uppermost layer with the surface coated with particles facing outwards.

2. Method according to claim 1, further characterized in that the base layer consists of a number of continuous papers of pre-impregnated product or sheets of pre-impregnated product, respectively, dry conventional that are not coated with particles, because the continuous paper or the sheet respectively coated with particles is placed on top of these conventional continuous papers or sheets, whereby the resin in the highest part of these continuous papers or sheets respectively consists of possibly ream of melamine-formaldehyde, while the rest of the continuous papers or The leaves respectively contain phenol formaldehyde resin or phenolureafanoal resin, after which continuous papers or portions of sheets respectively adhere continuously or discontinuously to the surface layer using high pressure and increased temperature. .

3. Method according to claim 1, further characterized in that the base layer consists of a fiber board or a particle board.

4. Method according to any of claims 1-3, further characterized in that the continuous paper or the sheet of paper coated with particles consists of a so-called overlay paper, preferably of < * cellulose or a so-called decorative sheet, which can be of design or monochrome.

5. Method according to claim 3, further characterized in that the continuous paper or the sheet of paper coated with particles adheres to the base layer by gumming or laminating under heat and pressure.

6. Method according to any of claims 1-5, further characterized in that the hard particles consist of silicon dioxide, aluminum oxide and / or silicon carbide.

7. Method according to any of claims 1-6, further characterized in that two overlay sheets coated with particles are used.