| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for cleaning oily materials loaded in hollow parts while leaving a pore size keeping agent for hollow fiber membranes such as glycerin or the like which avoids the destruction of the earth environment that is seen when using solvents such as chlorofluorocarbons or the like for cleaning oily materials such as liquid parafin loaded in hollow parts of hollow fiber membranes, avoids danger of ignition, dispenses with installation of explosion-proof equipment, and solves the problem of deterioration of a case for storing a hollow fiber membrane bundle due to the solvents. SOLUTION: In a method for cleaning a hollow fiber membrane, a hollow fiber membrane bundle is loaded in a case of a blood purifier, both ends are fixed by a bonding resin, and gas whose temperature and humidity are adjusted to a temperature of≥5°C and≤40°C and to a relative humidity of≥30% and≤70% is supplied to the hollow parts of the hollow fiber membranes. By doing so, a hollow forming agent remaining in the hollow parts is removed. COPYRIGHT: (C)2009,JPO&INPIT
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