Method for making multi-layered product for structural and packaging applications, involves treating combined web of material to create dimpled interior web having several dimples

摘要

The method involves extruding a web of material. The strips of material are secured to the extruded web, so as to create a combined web (122) having portions of differing thicknesses. The combined web of material is treated to create a dimpled interior web (130) having several dimples (132,134). The outer skins are applied to the dimpled interior web to create a multi-layered web. The portions of the combined web which are thicker than other portions of the web extended in the direction of travel of the extruded web.