CPC E04F 15/02038 (2013.01) [E04F 15/102 (2013.01); E04F 15/107 (2013.01); Y10T 428/24777 (2015.01)] | 19 Claims |
1. A method for manufacturing a floor board, said floor board comprising a decorative surface layer applied to a substrate, said method comprising:
providing a substrate material comprising MDF/HDF material;
applying a decorative surface layer to a top surface of said substrate material;
dividing said substrate material into planks having approximately the size of said floor board;
profiling a side edge of said planks; said MDF/HDF material being exposed at said side edge;
impregnating said side edge with an impregnation agent;
wherein said MDF/HDF material has a higher density region of at least 900 kg/m3, and
wherein said MDF/HDF material at the said side edge comprises a zone having a density which is at least 10 percent lower than 900 kg/m3,
wherein said impregnating of said side edge with the impregnation agent comprises spraying of said side edge while the floor board is transported on a transporting device.
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