METHOD FOR PRODUCING A TANNIN-CONTAINING FLEET OF FIBER FROM WASTE MATERIALS FROM THE WOOD INDUSTRY

摘要

A method for the production of binder liquor from tannin-containing bark involves pulping the bark with pulverized products from used timber materials bonded with aminoplastic resins, especially used fiberboard and chipboard, in aqueous medium at a temperature of at least 70[deg]C.