Hollow fiber membrane manufacturing method

The purpose of the present invention is to provide a drawing method for obtaining a reduced diameter hollow fiber membrane using a simple drawing process with which hollow fiber collapse (flattening) is limited. The present invention relates to a hollow fiber membrane manufacturing method that reduc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	IWAI KENTA, ISHIZAKI TOSHIYUKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE MECHANICAL FINISHING OF YARNS OR ROPES MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPINNING TEXTILES TRANSPORTING WARPING OR BEAMING YARNS
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Beschreibung
Zusammenfassung:	The purpose of the present invention is to provide a drawing method for obtaining a reduced diameter hollow fiber membrane using a simple drawing process with which hollow fiber collapse (flattening) is limited. The present invention relates to a hollow fiber membrane manufacturing method that reduces diameter by drawing. The hollow fiber membrane manufacturing method is provided with a step for drawing the hollow fibers, which have undergone a spinning step, to reduce the diameter thereof using a grooved roll. 本发明的目的在于提供种拉伸方法，该拉伸方法使用简便的拉伸工艺而得到抑制中空丝被压扁(扁平化)且缩径化了的中空丝膜。本发明涉及种中空丝膜的制造方法，其是利用拉伸进行缩径加工的中空丝膜的制造方法，该制造方法具备利用具有槽的辊对经过纺丝工序得到的中空丝进行拉伸而进行缩径加工的工序。