公开(公告)号：US20180245253A1

公开(公告)日：2018-08-30

申请号：US15757596

申请日：2016-09-02

Applicant: TORAY INDUSTRIES, INC.

Inventor： Daiki SHIMADA ,  Ryoichi HANE ,  Hiroshi SHINWASHI ,  Shinji INOUE

IPC: D04H3/16 ,  D04H3/018

CPC classification number: D04H3/16 ,  B01D39/163 ,  B01D2239/0208 ,  B01D2239/0618 ,  B01D2239/10 ,  D04H1/736 ,  D04H3/018 ,  D04H3/033 ,  D10B2331/04 ,  D10B2505/04

Abstract: A process for producing a spunbonded nonwoven fabric includes ejecting a continuous fiber group from a spinneret, thinning and stretching the continuous fiber group with a rectangular ejector, and collecting the continuous fiber group in a nonwoven fabric form. The rectangular ejector has a jetting hole part having a slit width regulation member. A plurality of minute-deformation unit is disposed along a long-side direction of the slit width regulation member. A nonwoven fabric which has been collected is examined to determine a basis-weight distribution thereof in a width direction and the slit width regulation member is partly and minutely deformed by the minute-deformation unit on the basis of a determined value thereof to partly change a slit width of the jetting hole by its minute deformation, thereby regulating a basis-weight distribution thereof.