Wooden material panel, in particular in the form of a wood-plastic composite material, and a method for producing the same

A process for the production of a wooden board, in the form of a wood-plastic composite, comprising the steps of:

• providing wood fibers with a wood fiber moisture content of from 6 to 15% and polymer fibers;
• forming a mixture of the wood fibers and the polymer fibers in a blow line with a mixing ratio of from 70% by weight of wood fibers/30% by weight of polymer fibers to 40% by weight of wood fibers/60% by weight of polymer fibers;
• intermediately buffering or intermediately storing the mixture in a feeder;
• blowing the mixture onto a first roll to form a first preliminary mat (airlay);
• defibrating the first preliminary mat and once again blowing the mixture onto a second roll to form a second preliminary mat (airlay);
• transferring the second preliminary mat onto a transport belt and introducing the second preliminary mat into at least one heat-conditioning oven for preliminary consolidation by thermal bonding to give a pre-consolidated mat, wherein the temperatures in the heat treatment in the heat-conditioning oven are maintained by blowing in hot air and the core temperature of the second preliminary mat is within a range between 100 and 150° C.;
• transfer of the pre-consolidated mat into at least one twin-belt press for compaction to give a wooden board;
• and
• cooling of the compacted wooden board in at least one cooling press to temperatures of from 10 to 70° C.