TPU (Thermoplastic polyurethanes), a thermoplastic TPU elastomer, is made of MDI containing NCO functional groups and POLYOL and 1.4BG containing OH functional groups, and is made of mixing. Due to its good elasticity, good physical properties and good mechanical strength, it is widely used in the processing methods of injection, extrusion, calendering and dissolving into solution-type resins. It is a plastic material commonly used by plastic processing industry operators.
The products made cover the range of industrial applications and civilian necessities. In recent years, due to the continuous development of new products, the use of thermoplastic PU elastomers has been continuously increasing, creating new opportunities for plastic processing industry with low cost and high added value. TPU (thermoplastic polyurethane) is increasingly popular for its superior performance and environmental concept. Wherever PVC is used, TPU can become a substitute for PVC. But the advantages of TPU are beyond the reach of PVC.
TPU not only has the characteristics of high tension, high tension, strength and aging resistance, but is also a mature and environmentally friendly material. TPU has been widely used in: shoe materials, ready-to-wear, inflatable toys, sports equipment on and underwater, medical equipment, fitness equipment, car seat materials, umbrellas, suitcases, leather bags, etc. TPU film is made of films based on TPU pellets through calendering, casting, blowing film, coating and other processes. It is widely used in sports shoes: trademark decoration on soles and uppers, airbags, air cushions, oil bags, etc.
Nowadays, there are two trends in the application of TPU films in sports shoes: one is the popular style caused by women's sandals, that is, the high-transparent TPU film is either directly cut, or screen printing and coloring, or sticking the cloth base into a clamped mesh cloth, etc., and the high-circumference wave is formed and bonded to the upper, which has a functional and decorative effect. The second is to use waterproof and moisture-permeable TPU film to fit the shoe material cloth to achieve the waterproof and moisture-permeable effect.
