| 摘要 |
A method for forming a membrane using a tubular supporting body for the membrane is provided to improve productivity of the membrane by forming the tubular supporting body efficiently by using yarns, zonal nonwoven fabrics, or zonal fabrics woven with yarns, and a structure for forming the tubular supporting body is provided. A method for forming a membrane using a tubular supporting body comprises: a supporting body forming step of forming a tubular supporting body by disposing dropped yarns in a tubular shape; a membrane production step of producing a membrane by spinning an undiluted spinning solution onto the tubular supporting body while transferring the tubular supporting body; and a membrane solidification step of solidifying the membrane. A method for forming a membrane using a tubular supporting body comprises: a supporting body forming step of forming a tubular supporting body by disposing a zonal nonwoven fabric in a tubular shape; a membrane production step of producing a membrane by spinning an undiluted spinning solution onto the tubular supporting body while transferring the tubular supporting body; and a membrane solidification step of solidifying the membrane.
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