With the concept of sustainable development gaining popularity, the pollution of synthetic leather production to the environment has been paid more and more attention. With the development of synthetic leather technology, there are now environmentally friendly technological solutions that can greatly reduce pollution and stabilize production. For example, water-based synthetic leather that uses water instead of organic solvent (DMF), solvent-free synthetic leather that does not use DMF solvent at all, TPU synthetic leather, organic silicon synthetic leather, etc.