METHOD OF RECOVERING EFFECTIVE COMPONENTS FROM POLYESTER FIBER WASTES

摘要

PROBLEM TO BE SOLVED: To establish an efficient and economical method capable of obtaining a recovered monomer with high purity by improving handleability of fiber wastes in a method of recovering effective components from impurity-containing polyester fiber wastes. SOLUTION: The simple and economical method of obtaining the recovered monomer with high purity comprises adding a reaction process provided with a process to remove impurities by a physical and chemical method, after a pretreatment process of removing fiber wastes judged other than polyester fibers by examination using a judging device and then improving handleability by applying pulverization and granulation to fiber wastes which pass several tests.