Abstract: A method for producing permselective membrane includes preparing a support membrane having selective permeability and a lipid membrane containing a channel substance, the lipid membrane being formed on a surface of the support membrane. Excess lipids are removed with an acid or an alkali, and the support membrane has a permeation flux of 20 L/(m2·h) or more and a desalination capacity of 1% to 20% at a pressure of 0.1 MPa.

Abstract: Provided are a wiping detergent composition for textile products capable of, when wiping a stain derived from food or the like attached to a textile product using a detergent liquid, not only reducing the degree of soiling of the stain portion, but also reducing the spread of the stain around the stain portion, and a method for removing a stain attached to a textile product using the same. A wiping detergent composition for textile products containing the following component (a1) in an amount of 0.3 mass % or more and 10 mass % or less, the following component (b) in an amount of 0.1 mass % or more, and water, wherein the mass ratio of the content of component (a1) to the content of component (b), (a1)/(b), is 0.6 or more and 50 or less, component (a1): one or more surfactants selected from a nonionic surfactant with an HLB of 9 or more and 16.0 or less and an anionic surfactant, and component (b): an organic solvent having a hydroxyl group with a ClogP of ?2.0 or more and less than 1.0.

Abstract: A permselective membrane includes a support membrane having selective permeability and a lipid membrane containing a channel substance, the lipid membrane being formed on a surface of the support membrane, wherein the support membrane has a permeation flux of 20 L/(m2·h) or more and a desalination capacity of 1% to 20% at a pressure of 0.1 MPa.