METHOD FOR RECYCLING RESIN/FIBER COMPOSITE SHEET, AND MATERIAL AND PRODUCT RECLAIMED BY UTILIZING SHEET

摘要

PROBLEM TO BE SOLVED: To provide a recycling method capable of recycling resin and fiber components from a waste material of a resin/fiber composite sheet consisting of a resin and fibers such as a wallpaper or the like so as to separately reutilize them.

SOLUTION: The resin/fiber composite sheet 10 is crushed to obtain a crushed mixture of resin pieces (r) mainly containing the resin component and fibrous pieces (f) mainly containing the fibrous component. Then, the resin pieces and fiber pieces are separated from the crushed mixture by a dry separating method utilizing the mass difference (the bulk density difference) between the resin and fiber pieces in the air. The separation is more effectively performed when both of centrifugal force and gravity are utilized. A reclaimed resin product is obtained from the reclaimed resin material using the resultant resin pieces, while a reclaimed fiber product is obtained from the reclaimed fiber material using the resultant fiber pieces.

COPYRIGHT: (C)2004,JPO