Method for producing non-crimped staple fiber, and wet non-woven fabric comprising the obtained non-crimped staple fiber

摘要

Provided is a method for more efficiently producing a non-crimped staple fiber having excellent dispersibility in water. In the method of producing a crimpless short fiber, wherein spinning is performed at a spinning speed of 600 m / min or more and the fiber tow is cut to a length of 35 mm or less at a speed equal to or higher than the spinning speed, the following requirements (I) to (III): (I) Forming the undrawn multifilament immediately after spinning as it is or by bundling a plurality of fibers into fiber tow; (II) continuously cutting the bundled fiber tow without collecting; and (III) immediately after spinning A process for producing a non-crimped staple fiber, comprising the step of applying one or more hydrophilic oil agents from an undrawn multifilament to before cutting of a fiber tow.