Kidney is one of the vital and important organs of vertebrates, which is constantly purifying and removing waste materials and excess body water from the blood. When the patient’s clearance reaches 10-15%, the doctor determines that the kidney failure has increased to such an extent that the patient is no longer able to excrete toxins and needs dialysis. kidney do The dialysis machine is actually the artificial kidney of these patients, which cleans their blood outside the body, and the most important part of the dialysis machine is its membrane. Due to the increasing trend of diabetes and blood pressure in Iran, the number of kidney patients is increasing day by day. Fortunately, Behyar Sanat Sepahan Company has been able to achieve the technology of making this membrane.