Method and apparatus for manufacturing laminate floor panels...

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 5/16 (2006.01) B27N 3/06 (2006.01) B29B 7/92 (2006.01) B32B 21/02 (2006.01)

Patent

CA 2683707

The invention relates to a method of manufacturing laminate floor panels comprising at least a core (3) containing wood/plastic composite (WPC) and a top layer of laminate (14, 15). It includes the step of providing a granulate of WPC in which natural fibres are encapsulated in polymer plastics. There is provided a layer of granulate which is melted. The melted layer is pressed for forming the core of the panels. The top laminate is attached onto the core to form a sheet (S), and the sheet is finished to form one or more panels. The laminate panel comprises a core (3) made of WPC, a basic layer (10) melted to the core and a top laminate (14, 15) comprising at least one paper layer impregnated with impregnation material, such as melamine resin, and being attached to the basic layer through this impregnation material, or a plastic layer melted to a glass fibre basic layer.

La présente invention concerne un procédé de fabrication de panneaux de plancher lamellés comportant au moins une âme contenant un composite bois/matière plastique (WPC) et une couche supérieure de lamellé (14, 15). Le procédé comprend une étape de mise à disposition d'un granulat de composite bois/matière plastique dans lequel des fibres naturelles sont incorporées dans des plastiques polymères. Il est prévu une couche de granulat fondue. La couche fondue est comprimée pour former l'âme des panneaux. Le lamellé supérieur est fixé sur l'âme pour former une feuille (S), et la feuille est soumise à une finition pour former un ou des panneaux. Le panneau lamellé comporte une âme (3) réalisée en composite bois/matière plastique, une couche de base (10) fondue imprégnée avec une matière d'imprégnation, telle que la résine de mélanine, et est fixée à la couche de base grâce à cette matière d'imprégnation, ou une couche de matière plastique fondue fixée à une couche de base en fibres de verre.

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