TPU film has excellent characteristics of high tension, strong toughness and anti-aging, and is non-toxic, environmentally friendly, wear-resistant, anti-corrosion, mildew resistant, antibacterial, biocompatible and other excellent characteristics. Currently, TPU has been widely used in shoe materials, ready-to-wear, inflatable toys, water and underwater sports equipment, medical equipment, fitness equipment, car seat materials, umbrellas, leather cases, leather bags, car clothing film covering, and so on.