Non-woven fabrics are made of bonding fibres together by chemical, heat, mechanical or solvent treatments. Both staple fibres (short) fibres and continuous long fibres are used in non-woven materials. It is basically a sheet of fibres (staple and continuous), that have been formed into a web, bound together by various means, other than weaving or knitting. The term non-woven was coined in 1942 and were first were known to be produced in the US. The first non-woven fabrics were formed by adhesively bonding fibre webs together.