PAPERMAKING STRAINER, FOREIGN MATERIAL SEPARATION APPARATUS FOR PAPERMAKING, AND MANUFACTURING METHOD OF PAPERMAKING STRAINER

摘要

A papermaking strainer (4) disposed adjacent to a rotor (3), for sieving a disintegrated paper material, includes a strainer (3) for facing the rotor, including a plurality of strainer holes (42) formed in the strainer; and a plurality of peripheral walls (6) protruding from a surface of the strainer to surround the plurality of strainer holes, or a plurality of peripheral concaved groove portions (6') concaved from the surface of the strainer to surround the plurality of strainer holes.