Polyethylene foam cotton is a non crosslinking closed cell structure, also known as EPE pearl cotton, is a new environmental protection packaging material. It is composed of numerous independent bubbles produced by physical foaming of LDPE. It overcomes the shortcomings of ordinary foam adhesive, such as fragile, deformation and poor recovery. It has many advantages, such as water-proof and moisture-proof, shockproof, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, strong impact resistance, etc., and also has good chemical resistance. It is an ideal substitute for traditional packaging materials.