| 摘要 |
PURPOSE:To facilitate the operations and to produce the title hollow yarn module without wasting the binder by dipping hollow yarn in a soln. for dissolving or swelling the yarn to close the end opening, inserting the yarn into a case, and dipping the yarn in the binder to fill the binder into the yarn. CONSTITUTION:The end of the hollow yarn 1 of polyvinylidene fluoride for an ultrafilter membrane, etc., is dipped in the soln. 4 of acrylonitrile, etc., for dissolving or swelling the yarn, and the yarn is pulled up before being completely dissolved and dried to close the end opening. The hollow yarn 1 is set in the case 2 so that the yarn protrudes slightly from the end edge of the case 2. The case is then dipped in the binder 3, then pulled up after the binder 3 is filled in the gaps between the inner wall of the case 2 and the hollow yarn 1 and between the respective hollow yarns 1, and dried. The other end is treated in the same way. After the binder 3 is cured, the end edge of the hollow yarn 1 protruding from the end edge of the case 2 is cut with a knife, and the hollow yarn module, wherein both ends of the hollow yarn 1 are opened, is obtained.
|
