Ethylene imine polymer is widely used in various industrial applications due to its unique properties. It is commonly employed as a flocculant in water treatment processes, where it helps to aggregate and remove suspended particles, improving water clarity and quality. In the paper industry, it serves as a retention aid, enhancing the efficiency of paper production by improving the retention of fine particles and fillers. Additionally, it is utilized in the textile industry as a fabric softener and finishing agent, providing improved texture and durability to fabrics. The polymer also finds applications in the production of adhesives and coatings, where it enhances adhesion and durability. Furthermore, it is used in the formulation of personal care products, such as hair conditioners and skin creams, due to its ability to improve product performance and stability.