Introduction Of TPU Film

TPU (Thermoplastic polyurethanes), thermoplastic TPU elastomer, is made of MDI containing NCO functional group and POLYOL and 1.4BG containing OH functional group by extrusion and mixing. Because of its good elasticity, good physical properties and good mechanical strength, it is widely used in injection, extrusion, calendering and dissolution into solution resin and other processing methods, and is a plastic material often used by plastic processing industry, Its products cover the range of industrial applications and civil necessities.
In recent years, due to the continuous development of new products, the consumption of thermoplastic PU elastomers is continuously increasing, creating new opportunities for plastic processing industry with low cost and high added value.
TPU (thermoplastic polyurethane) is increasingly popular because of its superior performance and environmental protection concept. Where PVC is used, TPU can become a substitute for PVC. However, the advantages of TPU are beyond that of PVC. TPU not only has excellent characteristics of high tension, high tension, toughness and aging resistance, but also is a mature environmental protection material. 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, suitcases, leather bags, etc.
TPU film is made from TPU granular material by calendering, tape casting, film blowing, coating and other processes. It is widely used in sports shoes: trademark decoration, air bag, air cushion, oil bag, etc. on the sole and upper. At present, there are two trends in the application of TPU film in sports shoes: one is the popular trend caused by women's sandals, that is, the highly transparent TPU film is directly cut, or screen printed and colored, or the adhesive cloth is based on a sandwich cloth, etc., which is formed and bonded on the upper with high frequency, with functional and decorative effects. The second is to use the waterproof and moisture permeable TPU film and the shoe material cloth to achieve the waterproof and moisture permeable effect.