chemical resistant dpu for application on microfiber nonwoven synthetic leather and the method

摘要

The present disclosure provides a polyurethane dispersion comprising a polyurethane prepolymer and an ionic surfactant. It further provides a microfiber nonwoven leather comprising a microfiber nonwoven cloth and the polyurethane dispersion. It further provides a method for preparing microfiber nonwoven leather comprising a step of impregnating microfiber nonwoven cloths in the polyurethane dispersion.