Method and apparatus for finishing a wood panel

Abstract

A method for finishing an engineered wood board. The method includes: cleaning the top and bottom, applying a first top resin layer, which contains corundum particles, to the top and a first bottom resin layer to the bottom, drying the first top and first bottom resin layers to a residual moisture content of 3% to 6%, applying a second top resin layer, which contains cellulose, to the top and a second bottom resin layer to the bottom, drying the second top and second bottom resin layers to a residual moisture content of 3% to 6%, applying an at least third top resin layer, which contains glass particles, to the top and an at least third bottom resin layer to the bottom, drying the third top and third bottom resin layers to a residual moisture content of 3% to 6%, and pressing the multilayer structure under pressure and heat.

What is claimed is: 
     
         1 . A device for finishing an engineered wood board having at least one top and/or bottom of with a decor, comprising:
 (A) a first double-sided application device;   (B) a first drying device arranged downstream of the first double-sided application device in a processing direction (V),   (C) a second double-sided application device arranged downstream of the first drying device in the processing direction (V),   (D) a second drying device arranged downstream of the second double-sided application device in the processing direction (V),   (E) at least one third double-sided application device arranged downstream of the second drying device in the processing direction (V),   (F) at least one third drying deice arranged downstream of the at least one third double sided application device in the processing direction (V), and   (G) a short-cycle press, wherein:   each double-sided application device comprises:
 a top application device for applying a resin layer to the top of the engineered wood board, and 
 a bottom application device for applying a resin layer to the bottom of the engineered wood board, and 
 each top application device and each bottom application device comprises a mixing vessel, in which the resin to be applied may be mixed with at least one additive. 
   
     
     
         2 . The device according to  claim 1 , further comprising a storage magazine with a plurality of storage vessels, in which the resin to be applied and the additives are stored separately from one another, and further comprising feed lines from the storage vessels to the mixing vessels. 
     
     
         3 . The device according to  claim 2 , further comprising a controller to control the amount of the resin and of the additives conveyed by the feed lines into the mixing vessels. 
     
     
         4 . The device according to  claim 1 , wherein each top application device and each bottom application device comprises an application roller set. 
     
     
         5 . The device according to  claim 1 , further comprising respective peristaltic pumps for pumping contents of the mixing vessel to the respective top application devices and bottom application devices. 
     
     
         6 . The device according to  claim 1 , further comprising at least one hold-down member for the engineered wood board is arranged upstream of each double-sided application device.