MANUFACTURING METHOD FOR HOLLOW FIBER MEMBRANE FOR BLOOD PURIFICATION EXCELLENT IN BIOCOMPATIBILITY

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method for hollow fiber membrane for blood purification capable of effectively producing antioxidant effect of vitamin added to spinning dope.;SOLUTION: In the manufacturing method for the hollow fiber membrane for blood purification including a process in which after simultaneously discharging the spinning dope and core liquid from an outside annular part and a main hole of a double pipe nozzle, they are made to pass through the coagulability fluid, to be solidified and cleaned, the spinning dope is made to contain 0.05-1.2 mass% of lipid soluble vitamin, preferably vitamin E and also contain 0.004-0.045 mass% of citric acid.;COPYRIGHT: (C)2013,JPO&INPIT