Loose fill packaging material consists of elements (21) having a central liner (15) and a corrugated medium (17) on both sides of the liner. The element is made from fibreboard material. A method is disclosed of making the element by securing together the liner of a folded sheet of single faced...http://www.google.es/patents/US5674344?utm_source=gb-gplus-sharePatente US5674344 - Loose fill packaging material
