MEMBRANE MODULE FOR SEPARATING LIQUIDS

摘要

PROBLEM TO BE SOLVED: To obtain a flow passage medium at a low cost by stiffening the whole knitted fabric, which is obtained by knitting thermoplastic synthetic filament yarns having the same fineness and comprising sheath-core type conjugated fibers each having a high melting point component as the core and a low melting point component as the sheath by means of a tricot knitting machine having two reeds, by fusion-bonding the low melting point components to one another. SOLUTION: The tricot knitting fabric is obtained by knitting by means of the tricot knitting machine having two reeds so that a knitted route of a yarn F becomes a base structure part and a knitted route of a yarn B having the same fineness as the yarn F becomes a projected part. The yarn F and the yarn B are respectively supplied through the front reed and the back reed so that the sinker loop parts of the knitted stitches formed by the front reed and the base structure parts are made into the passages X of the permeable liquid and the needle loop parts and the chain parts formed by the back reed are made into the projected parts Y. The heat treatment is carried out at about 180 deg.C.