SELF-CORRUGATING LAMINATES AND METHODS OF MAKING THEM

摘要

Self-corrugating laminates are disclosed that include first and second shrinkable film layers, each having a primary axis of shrinkage, bonded together in a grid of spaced bond points arranged substantially linearly along perpendicular horizontal and vertical bond lines such that the axes of shrinkage are substantially perpendicular to one another. Upon shrinkage of the shrinkable film layers, a structural corrugate is formed that includes first and second corrugated layers each with structural corrugations therein arranged along lines of corrugation. At the interface of the two corrugated layers, the lines of corrugation in the first corrugated layer are substantially perpendicular to the lines of corrugation in the second corrugated layer.