FILM STRUCTURES FOR SELF LOCKING NONWOVEN INDUSTRIAL TEXTILE

摘要

A profiled film structure textiles comprising at least two layers of the structure , and methods of making the structure and textiles. Each film layer is profiled with regularly arranged protrusions , separated by planar land areas. Portions of at least one side wall of the protrusions are slit to create apertures extending through the film and top members forming coplanar latching means extending over the apertures. When the upper surface of a first layer of the film is brought into contiguous relationship with the upper surface of a second layer of the film and the protrusions of each of the respective layers are aligned between adjacent protrusions of the other layer , the latching means of each layer are received and retained within the apertures of the opposing layer , resulting in an efficiently assembled self- locking structure having selectable permeability for fluid flow through the structure.