PRODUCTION OF LAYERED MDF PANEL HAVING FINE FIBERS IN FACE LAYERS AND COARSE FIBERS IN CORE LAYER FOR FURNITURE INDUSTRY
MDF (Medium Density Fiberboard) which is one of the wood-based panels used for industrial applications such as furniture, building materials, and laminate flooring the conventional MDF panels are produced using single layer in the mat forming machine. In this study, it is aimed to produce layered MDF panel for the furniture industry. The surface layers of the MDF consist of fine while the core layers consist of coarse fibers. The MDF panels having different face and core layer ratios could be produced using different defibrator disc gap, which results in different fiber sizes. In the production of layered MDF production, the MDF companies should change their mat forming system, which look like the mat forming of three layers particleboard. The MDF companies having the layered mat forming machine can also use the conventional production which is one layer mat forming production in the MDF. The advantages of three layer MDF are as follows; (1) The amounts of wood and adhesive can be decreased by using the cores fibers used in the core layer of the MDF, (2) The fiber production capacity of the defibrator can be increased using cores fibers, which positively affect the energy saving in the defibrator, (3) The splitting caused by side screw withdrawal resistance can be prevented using core layer consist of coarse fibers.