METHOD OF IMMOBILIZING RESIN COMPOUND IN HOLLOW FIBER MEMBRANE

摘要

PROBLEM TO BE SOLVED: To provide a method of immobilizing a resin compound for hydrophilization on a hollow fiber membrane uniformly in more amount of immobilization in a method of coating hydrophilic resin having a hydroxy group more safely and easily without requiring a complicated device or the like in a method of hydrophilizing a polyolefin porous hollow fiber membrane.SOLUTION: A method of immobilizing resin includes (1) a process of passing a solution formed of a resin compound and a medium for dissolving the resin compound through an olefin hollow fiber, (2) a process of cleaning the hollow fiber obtained in the process (1) with a medium for dissolving the resin compound, and (3) a process of immobilizing the resin compound on a surface of the hollow fiber by contacting the hollow fiber obtained in the process (2) with water.