1. According to ISO 9092, main characteristic of the definition indicates that a nonwoven is a fabric made of fibres, which is consolidated in different ways
2. Talling BLO (1994) U.S. Pat 5,352,509 assigned to Oy Partek AB
3. (a) Husemoen T, Hansel EL, Nissen P (2005) U.S. Pat 6,849,683 B2 assigned to Rockwool International A/S
4. (b) Hummerich R, Kistenmacher A, Denzinger W, Schornick G, Reck B, Weber M (1997) WO 97/31036 assigned to BASF AG
5. (c) Taylor TJ, Bristol DC (2000) EP 0 990 727 A1 assigned to Johns Manville International, Inc