METHOD OF MANUFACTURING HOLLOW FIBER MEMBRANE AND METHOD OF MANUFACTURING HOLLOW FIBER MEMBRANE MODULE
PROBLEM TO BE SOLVED: To improve the stability of spinning and prevent occurrence of defected fibers and fiber breakage in manufacturing a hollow fiber membrane by a wet or a dry-and-wet method employing a liquid injection method. SOLUTION: In a manufacturing method based on spinning hollow fibers t...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
27.07.2006
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To improve the stability of spinning and prevent occurrence of defected fibers and fiber breakage in manufacturing a hollow fiber membrane by a wet or a dry-and-wet method employing a liquid injection method. SOLUTION: In a manufacturing method based on spinning hollow fibers through a wet or a dry-and-wet method by injecting a hollow part forming fluid into a center inner tube with a double-tube type spinneret for spinning of the hollow fiber, a gas of a solubility higher than that of air is caused to flow through a liquid passage to replace air with the gas of a higher solubility in order to improve the stability of spinning and prevent occurrence of defective fibers and fiber breakage. COPYRIGHT: (C)2006,JPO&NCIPI |
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Bibliography: | Application Number: JP20050003720 |