Note. A nonwoven fabric is an assembly having structural
integrity of continuous or discontinuous fibers held together in
random or ordered (e.g., parallel, etc.) array by (a) mechanical
interlock (e.g., as a consequence of needling or hydroentangling,
etc.), (b) in the case of thermoplastic fibers, heat-induced
bonding (i.e., fusing), or (c) an impregnation or coating of a
bonding agent. Paper is not to be considered as nonwoven fabric
for classification here.