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'''Nonwoven''' textiles are those which are neither woven nor knit, for example felt. General use hyphenates the word, but industrial use spells it as one word. Non-wovens are typically not strong (unless reinforced by a backing or densified). In the recent years non-woven material has become an alternative to polyurethane foam. <br>'''Non-woven''' fabric is typically manufactured by putting small fibers together in the form of a sheet(web) and then binding them either mechanically (as in the case of felt, by interlocking them with serrated needles such that the inter-fiber friction results in a stronger fabric), with an adhesive, or thermally ({by applying binder(in the form of powder, paste, or polymer melt) and melting the binder onto the web by increasing temperature)}.