METHOD FOR THE PRODUCTION OF MEDIUM-TIGHT FIBER PLATES AND FIBER MOLDED PARTS WITH REDUCED EMISSION AND LOW THICK SOURCE

摘要

For the production of fiberboards, and especially medium density fiberboards, the ligno cellulose materials are digested in a chemo-thermo hydrolytic action and then reduced to fibers in a refiner together with condensed tannin. The fibers are mixed with a bonding agent and then scattered to form a mat for compression into boards. The bonding agent can be amino resin, phenol formaledehyde resin, tannin formaldehyde resin and/or an adhesive based on diisocyanates.