Panel coating
A method for coating of a floor panel and a floor panel produced by the method. A method for producing a laminated product, for example a building panel, preferably a floor panel. The method includes applying a paper on one side of a wood fiber based core, e.g., an HDF panel, creating a décor on the paper by a digital printing process, applying a resin, preferably a melamine formaldehyde resin, on the paper, heating the décor and the paper with the resin, preferably by using an IR lamp; and applying heat and pressure in order to cure the resin and thereby obtain a laminated product. Also, alternative methods for producing a laminated product, and such a laminated product.
1. A method for producing a laminated product, the method comprising:
applying a powder-based sublayer comprising wood fibers and a thermosetting resin on a wood fiber based core;
applying a paper on the powder-based sublayer, wherein the paper is an unimpregnated paper when the paper is applied on the sublayer;
applying a protective overlay comprising a thermosetting resin and wear-resistant particles on the paper; and
applying heat and pressure in order to impregnate the paper, to cure the resins, and thereby obtain a laminated product.
2. The method according to claim 1 , wherein a second powder-based balancing layer is applied on a rear side of the core.
3. The method according to claim 2 , wherein the second powder-based balancing layer comprises wood fibers and a thermosetting resin.
4. The method according to claim 1 , wherein a paper-based balancing layer is applied on a rear side of the core.
5. The method according to claim 1 , wherein the protective overlay is a powder-based overlay.
6. The method according to claim 5 , wherein a paper overlay is applied on the powder-based overlay.
7. A method for producing a laminated product, the method comprising:
applying a powder-based sublayer comprising wood fibers and a thermosetting resin on a wood fiber based core;
applying a paper on the powder-based sublayer, wherein the paper is an unimpregnated paper when the paper is applied on the sublayer;
applying a protective overlay comprising a thermosetting resin and wear-resistant particles on the paper; and
applying heat and pressure in order to impregnate the paper, to cure the resins, and thereby obtain a laminated product,
wherein the protective overlay is a powder-based overlay, and
wherein the powder-based overlay is applied by scattering.
8. The method according to claim 5 , further comprising applying moisture on the powder-based overlay and drying the powder-based overlay.
9. The method according to claim 1 , further comprising applying moisture on the powder-based sublayer and drying the powder-based sublayer.
10. The method according to claim 1 , wherein the protective overlay is a paper-based overlay.
11. The method according to claim 1 , further comprising providing a decor on the paper by a digital printing process.
12. The method according to claim 1 , wherein the sublayer further comprises color pigments.
13. The method according to claim 1 , wherein protective overlay further comprises wood fibers.
14. A method for producing a laminated product, the method comprising:
applying a powder-based sublayer comprising wood fibers and a thermosetting resin on a wood fiber based core;
applying a paper on the powder-based sublayer, wherein the paper is an unimpregnated paper when the paper is applied on the sublayer;
applying a protective overlay comprising a thermosetting resin and wear-resistant particles on the paper; and
applying heat and pressure in order to impregnate the paper, to cure the resins, and thereby obtain a laminated product,
wherein the powder-based sublayer is applied by scattering.
15. The method according to claim 1 , wherein the powder-based sublayer is a first sublayer and wherein the method further comprises:
applying a second powder-based sublayer on the paper, and
applying a transparent paper on the second powder-based sublayer.
16. The method according to claim 1 , wherein the thermosetting resin and wear-resistant particles of the protective overlay comprises a melamine formaldehyde resin and aluminum oxide.
17. The method according to claim 1 , wherein the thermosetting resin of the sublayer comprises melamine formaldehyde resin or a melamine/urea resin.
18. The method according to claim 1 , wherein the wood fiber based core is an HDF panel.
19. The method according to claim 1 , wherein the laminated product is a building panel or a floor panel.