DOUBLE LAYER NON-WOVEN FABRIC GEOTEXTILES WITH HIGH PERMEABILITY UNDER HIGH LOAD AND PRESSURE

摘要

The present invention, in the nonwoven geotextile, the web is formed of any one or more of polypropylene fiber, polyester fiber having a thickness of 60 to 300 denier, the fibers of the web is randomly arranged and with respect to the longitudinal direction of the web A core layer formed by carding to be stacked inclined at a predetermined angle; Forming a web of any one or more of polypropylene fiber, polyester fiber having a thickness of 7 to 60 denier, carding so that the fibers of the web are randomly arranged and laminated at an angle with respect to the longitudinal direction of the web It provides a double layer nonwoven geotextile having a high permeability coefficient under high load pressure, characterized in that the core layer and the reinforcement layer is three-dimensionally bonded by needle punching.