SEMI-PERMEABLE MEMBRANE SUPPORT AND A MANUFACTURING METHOD OF THE SEMI-PERMEABLE MEMBRANE SUPPORT CAPABLE OF IMPROVING THE FLATNESS OF A SEMI-PERMEABLE MEMBRANE COATING SIDE

摘要

PURPOSE: A semi-permeable membrane support and a manufacturing method of the semi-permeable membrane support are provided to improve the adhesive of a semi-permeable membrane non-coating side and to prevent a semi-permeable solution from penetrating.;CONSTITUTION: A semi-permeable membrane support contains two or more kinds of main synthetic fiber and combining synthetic fiber. The diameters of the synthetic fibers are different. The semi-permeable membrane support includes non-woven fabric with a semi-permeable membrane coating side and a semi-permeable membrane non-coating side. The section aspect ratio of the main synthetic fiber which exists from the surface to one third of the semi-permeable membrane coating side and/or the semi-permeable membrane non-coating side is in a range between 1.2 and 3.0 based on the thickness of the non-woven fabric observed by a scanning electron microscope.;COPYRIGHT KIPO 2013;[Reference numerals] (AA,BB) Short diameter of fiber; (CC,DD) Long diameter of fiber