Non woven fabric is a fabric-like material made
from long fibers, bonded together by chemical, mechanical, heat or
solvent treatment. The term is used in the textile manufacturing
industry to denote fabrics, such as felt, which are neither woven nor
knitted. Some nonwoven materials lack sufficient strength unless
densified or reinforced by a backing. In recent years, nonwovens have
become an alternative to polyurethane foam.