公开(公告)号：US10052807B2

公开(公告)日：2018-08-21

申请号：US15231094

申请日：2016-08-08

Applicant: FUJIFILM Corporation

Inventor： Yukihiro Katai ,  Shigehisa Sugiyama ,  Seiji Kasahara ,  Yasuhisa Shimoda ,  Masahiro Esaki

IPC: D01D5/06 ,  D01D5/11 ,  D01F2/28 ,  D01F13/02 ,  D04H1/4258 ,  D04H1/72 ,  D04H1/736 ,  D21H13/02 ,  B29C47/00 ,  B29B11/04 ,  B29K1/00 ,  B29L7/00

CPC classification number: B29C48/08 ,  B29B11/04 ,  B29C48/05 ,  B29K2001/12 ,  B29L2007/008 ,  D01D5/06 ,  D01F2/28 ,  D01F13/02 ,  D04H1/4258 ,  D04H1/72 ,  D04H1/736 ,  D21H13/02 ,  Y02P70/627

Abstract: A fiber manufacturing method includes the following steps of: dissolving a polymer in a solvent to obtain a polymer solution; spraying the polymer solution into a liquid heated to a boiling point of the solvent or higher, and evaporating the solvent to precipitate a fibrous polymer in a sealed precipitation tank, the liquid being immiscible with the polymer and the solvent; conveying the precipitated fibrous polymer in a liquid from the precipitation tank; water-rinsing the fibrous polymer conveyed in the liquid in the conveying step in a sealed water-rinsing tank; conveying the water-rinsed fibrous polymer in a liquid from the water-rinsing tank; and cooling and condensing solvent gas that is generated in the spraying step and the water-rinsing step.