Global Patent Index - EP 2921576 B1

EP 2921576 B1 20190605 - CONJUGATED FIBER, AND PROCESS FOR MANUFACTURING ULTRAFINE FIBERS

Title (en)

CONJUGATED FIBER, AND PROCESS FOR MANUFACTURING ULTRAFINE FIBERS

Title (de)

KONJUGATFASER UND VERFAHREN ZUR HERSTELLUNG VON ULTRAFEINEN FASERN

Title (fr)

FIBRE CONJUGUÉE ET PROCÉDÉ DE FABRICATION DES FIBRES ULTRAFINES

Publication

EP 2921576 B1 20190605 (EN)

Application

EP 13855930 A 20131115

Priority

  • JP 2012253208 A 20121119
  • JP 2013080891 W 20131115

Abstract (en)

[origin: EP2921576A1] The present invention provides a multicomponent fiber having a sea-island structure that facilitates sea removal even when the density of an island polymer is high, and a spinneret suitable for producing the multicomponent fiber. The multicomponent fiber according to the present invention includes a sea-island region (42) and a sea component region (44), and the sea component region (44) is between the sea-island region (42), and has a width of a certain value or more. The composite spinneret according to the present invention includes a nozzle plate having a nozzle hole collection including a sea component region forming hole group including sea discharge holes, and a sea-island discharge hole group.

IPC 8 full level

D01D 5/36 (2006.01); D01F 8/00 (2006.01)

CPC (source: EP US)

D01D 4/025 (2013.01 - US); D01D 5/082 (2013.01 - US); D01D 5/36 (2013.01 - EP US); D01F 8/00 (2013.01 - EP US); D01F 8/14 (2013.01 - US); D10B 2331/04 (2013.01 - US); Y10T 428/2931 (2015.01 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2921576 A1 20150923; EP 2921576 A4 20160629; EP 2921576 B1 20190605; CN 104797748 A 20150722; CN 104797748 B 20180403; JP 6344235 B2 20180620; JP WO2014077359 A1 20170105; KR 102061153 B1 20191231; KR 20150086235 A 20150727; TW 201425666 A 20140701; TW I633216 B 20180821; US 2015329991 A1 20151119; US 2018320290 A1 20181108; WO 2014077359 A1 20140522

DOCDB simple family (application)

EP 13855930 A 20131115; CN 201380060030 A 20131115; JP 2013080891 W 20131115; JP 2014508620 A 20131115; KR 20157008405 A 20131115; TW 102141873 A 20131118; US 201314443706 A 20131115; US 201816038597 A 20180718