TPU adhesive is a kind of polyurethane adhesive. The use of polyurethane adhesives in Europe and the United States has been quite common, especially in the use of footwear adhesives, almost the use of polyurethane viscose. The application of TPU viscose in China is to obtain polyurethane viscose after TPU dissolution and processing. The use of TPU adhesives is mainly in guangdong, fujian, zhejiang and Shanghai.