Polyethylene foamed cotton is non crosslinking obturator structure, also known as EPE pearl cotton, is a kind of new environmental protection packaging materials. It consists of low density polyethylene resin produced by the physical foaming bubbles pose numerous independent. To overcome the common fragile styrofoam, deformation, the disadvantage of poor recovery. With the advantages of water and damp proof, shockproof insulation, sound insulation, heat insulation, good plasticity and toughness, recycling, environmental protection, impact strength, chemical resistance, also has the very good. Is the ideal substitute of traditional packing materials.