EPE(Expandable Polyethylene) is expandable polyethylene, also known as pearl cotton. It is a non-crosslinked closed-cell structure, and it is a high-foam polyethylene product produced by extrusion with low-density polyethylene (LDPE) as the main raw material. It is composed of numerous independent bubbles produced by physical foaming of low density polyethylene ester. It is an advanced protective inner packaging material in the world at present. EPE has high elasticity and white appearance. Because it is a completely independent bubble body, it is light, flexible and flexible, so as to absorb the impact force to disperse and buffer, and overcome the shortcomings of ordinary styrofoam, such as fragility, deformation and recovery. epe has the characteristics of heat preservation, water and moisture resistance, heat insulation, sound insulation, friction resistance, aging resistance and corrosion resistance. It has strong anti-aging ability and good processability. The pink EPE raw material with antistatic agent also has obvious anti-static function. Bonding with PO film, aluminum film, woven fabric and other materials can also increase its tear strength and anti-ultraviolet function. Epe is an environmentally friendly material that can be recycled. Shockproof, heat preservation, good plasticity, strong toughness, recycling, strong impact resistance and many other advantages, but also has good chemical resistance. It is an ideal substitute for traditional packaging materials. EPE is widely used in product packaging, such as computers, electrical appliances, high-end furniture, leather goods, handbags, shoes and so on. Especially for high-grade handicraft packaging, EPE is combined with other high-grade decorative fabrics and flannel, which has a luxurious style without losing its good impact protection effect, and is also the trend of high-grade packaging development in the future.