METHOD FOR MANUFACTURE OF MOLDED PRODUCTS FROM PULP Russian patent published in 2006 - IPC D21J7/00 

FIELD: manufacture of products from pulp.

SUBSTANCE: method involves preparing aqueous suspension having required concentration from fibrous materials; molding wet product by settling fibers on molding base; removing residual moisture by using drying process; providing dosed feeding of liquid and solid modifiers into prepared aqueous suspension for rendering desirable physical and mechanical properties to material; providing settling of fibers onto surface of solid molds fabricated from porous material; molding wet product on lower surface of molding base by "from the bottom to the top" pattern through growing of fibrous material owing to filtering of water from suspension through pores of molding base due to pressure drop created therein; simultaneously with drying, product is subjected to premolding procedure, with product drying process being carried out in heated detachable solid mold and water vapors being simultaneously removed by providing vacuum pumping-out thereof from upper and lower parts of mold.

EFFECT: improved quality of surface of products with different consumer qualities and dense material structure, simplified processing equipment and reduced operational costs.

2 cl, 4 dwg