摘要:
The purpose of the present invention is to provide a method for producing a composite semipermeable membrane, which has excellent chemical resistance, and in which floating of a skin layer is not easily generated. A method for producing a composite semipermeable membrane, of the present invention, characterized in that an atmospheric pressure plasma treatment is performed to a front surface on which a skin layer of an epoxy resin porous support is to be formed, thereafter the skin layer is formed own the front surface.