Stretchable sheets comprising a variety of layers and zones and methods to produce such products

摘要

The invention provides methods for producing flexible, stretchable, and/or elastic sheets and products having two or more zone having different material features and performance. The products can he comprised of material such as natural elastomers and other synthetic polymers. The method for producing stretchable products by spraying product material of different types over different zones of a workpiece former or conveyor belt.