Patent ID: 9283727
Filing Date: 2016-03-15
CPC Classification: B01D,B31C,D06H

Claim Text:
1. A method for producing a hollow fiber membrane sheet object, the method comprising: (I) forming a ring-shaped section by winding a hollow fiber membrane capable of being continuously supplied, around two or more rolls so as to surround the two or more rolls, to obtain a wound hollow fiber membrane, and connecting a leading end portion of the wound hollow fiber membrane and an adjacent hollow fiber membrane, or putting a ring-shaped section created in advance, on two or more rolls, and connecting a leading end portion of a hollow fiber membrane capable of being continuously supplied, to the ring-shaped section; (II) winding the hollow fiber membrane around the rolls by moving the leading end portion of the hollow fiber membrane by rotating at least one roll of the two or more rolls; (III) forming a fixed section by fixing the hollow fiber membrane wound around the two or more rolls, into the form of a sheet in a width direction; and (IV) performing cutting-out along the fixed section, thereby obtaining a sheet object in which end portions of the hollow fiber membranes are connected in the width direction.