Polyurethane-membrane and method of preparing the same

The present invention has been washed with a basic solution of nylon or polyester fabric layer; Heat-curable adhesive layer is coated on both surfaces of the fabric layer; And relates to a polyurethane membrane and a method comprising a thermoplastic polyurethane resin layer formed on the heat-curable adhesive layer, a polyurethane membrane of the present invention improves the adhesion of the number of layers of fabric and the thermoplastic polyurethane resin it is excellent in mechanical properties and chemical resistance. Membranes, washing, heat-curable adhesive layer, a fabric layer, the thermoplastic polyurethane resin