Manufacturing method and apparatus for eco-friendly water-based trash bag using waste synthetic resin recycling

摘要

The present invention relates to a method and an apparatus for manufacturing an eco-friendly standard plastic garbage bag by recycling a waste synthetic resin, which use a recycled resin and an eco-friendly resin and improve tensile strength and breaking strength. To this end, provided is a method for manufacturing a plastic bag having a multi-layer structure which includes an outer layer, an intermediate layer and an inner layer sequentially extruded and blow-molded, wherein the outer layer and the inner layer are formed by applying a biodegradable film including any one or two or more selected from high-density polyethylene (HDPE), low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE), and the intermediate layer is formed by applying a recycled film using a recycled resin as a main material.