Polyurethane adhesive, the adhesive formed by people dispersing polyurethane in water or dissolving polyurethane in water is called water-based polyurethane adhesive, and others call water-based polyurethane or water-based polyurethane. Organic waterborne polyurethane (WPU) has the advantages of non-toxicity, safety, non-flammability, excellent adhesiveness, excellent low temperature resistance, excellent film elasticity and abrasion resistance, and has been increasingly applied in textile finishing at present.