PROBLEM TO BE SOLVED: To obtain a hollow fiber membrane for blood processing which can maintain antioxidant capacity under harsh environment such as high-temperature storage or the like, and shows little variation in performance regardless of the presence or absence of fat-soluble vitamins.SOLUTION: A hollow fiber membrane for blood processing which includes the following A-D contains fat-soluble vitamins on the surface within a range of 10 mg/m2 or more and 300 mg/m2 or less calculated in terms of membrane area. The fat-soluble vitamin content on the surface of the hollow fiber membrane for blood processing is 50 mass% or more of the fat-soluble vitamin content of the whole hollow fiber membrane for blood processing. A: polyethersulfone-based resin, B: hydrophilic macromolecules, C: fat-soluble vitamins, and D: ketone and/or alcohol having 4 or less carbon atoms.COPYRIGHT: (C)2014,JPO&INPIT【課題】高温保管等の過酷環境下における抗酸化能が保持でき、かつ脂溶性ビタミンの有無による性能変化が少ない血液処理用中空糸膜を得る。【解決手段】下記A~Dを含む、血液処理用中空糸膜であって、表面に脂溶性ビタミンを膜面積換算で10mg/m2以上300mg/m2以下の範囲で含有し、前記血液処理用中空糸膜表面の脂溶性ビタミンの含有量が、血液処理用中空糸膜全体の脂溶性ビタミン含有量の50質量%以上である、血液処理用中空糸膜。A:ポリエーテルスルホン系樹脂B:親水性高分子C:脂溶性ビタミンD:炭素数4以下のケトン及び/又はアルコール【選択図】なし
