Nonwoven 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.