FIBER LAMINATED BODY AND SEPARATION MEMBRANE COMPOSITE BODY

To provide a fiber laminated body which can achieve a separation membrane composite body that can prevent occurrence of such a problem that wrinkles and cracks are generated in a film layer, is less likely to cause such a problem that passing resistance of gas and liquid or ions are unintentionally increased, and is rich in strength, and a separation membrane composite body having the fiber laminated body.SOLUTION: There are provided a fiber laminated body that is used for reinforcing a film layer by bringing a non-woven fabric layer into contact with the film layer and has a non-woven fabric layer and a fiber base material layer, wherein the non-woven fabric layer contains a fiber containing a fluorine-based resin as a constituent fiber, the fiber base material layer has an average fiber diameter of the constituent fiber larger than that of the non-woven fabric layer, and thereby can solve the above problems; and a separation membrane composite body having the fiber laminated body.SELECTED DRAWING: None 【課題】フィルム層に皺や亀裂が生じるという問題が発生するのを防止できると共に、意図せず気体や液体あるいはイオンの通過抵抗が高くなるという問題が発生し難い、強度に富む分離膜複合体を実現可能な繊維積層体、および、当該繊維積層体を備えた分離膜複合体の提供を目的とする。【解決手段】フィルム層に不織布層を接触させることで前記フィルム層を補強するため使用する、不織布層と繊維基材層とを有する繊維積層体において、不織布層はフッ素系樹脂を含有する繊維を構成繊維として含んでいること、繊維基材層は不織布層よりも構成繊維の平均繊維径が太いことによって、上述した課題を達成可能な繊維積層体、および、当該繊維積層体を備えた分離膜複合体を提供できる。【選択図】なし