PROBLEM TO BE SOLVED: To provide a hollow fiber membrane having good water permeable performance and endotoxin capture performance.SOLUTION: A hollow fiber membrane for high water permeable endotoxin capture filter contains polyether sulfone that is 80 mass% or more of a hollow fiber membrane component, and has macrovoid having a maximum diameter of 10 μm or more in a cross section of the hollow fiber membrane, where an area ratio of the macrovoid to a cross-sectional area of the hollow fiber membrane is 20-40%, pure water permeation coefficient (PWP) is 1600 L/m2 h(0.1 MPa) or more, and endotoxin blocking performance (ET LRV) measured with the use of a test liquid having an endotoxin concentration of 100 EU/ml according to JIS K 3824 is 3 or more.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】透水性能とエンドトキシン捕捉性能が良い中空糸膜の提供。【解決手段】中空糸膜成分中の80質量%以上がポリエーテルスルホンであり、中空糸膜断面に最大径が10μm以上のマクロボイドを有し、前記マクロボイドの中空糸膜断面積に占める面積割合が20~40%であり、純水透過係数(PWP)が1600L/m2・h(0.1MPa)以上で、エンドトキシン濃度が100EU/mlの試験液を用い、JIS K3824に準じて測定されたエンドトキシン阻止性能(ET LRV)が3以上である、高透水性エンドトキシン捕捉フィルター用中空糸膜。【選択図】なし
