EP 2554721 A4 20131225 - HYGROSCOPIC FIBRE, AND MANUFACTURING METHOD FOR SAME
Title (en)
HYGROSCOPIC FIBRE, AND MANUFACTURING METHOD FOR SAME
Title (de)
HYGROSKOPISCHE FASER UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
FIBRE HYGROSCOPIQUE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- JP 2010080643 A 20100331
- JP 2011055454 W 20110309
Abstract (en)
[origin: EP2554721A1] Disclosed is a hygroscopic fiber which is a fiber comprising polyamide 56 resin, and has a ”MR of at least 3.0%. Further disclosed is a method for manufacturing a polyamide 56 fiber by a direct spin draw method in which: a polyamide 56 fiber discharged through a spinneret is cooled and solidified by cooling air; a spinning oil is deposited thereon and the fiber is stretched; and the fiber is taken up. The disclosed manufacturing method satisfies the following conditions: (1) The spinneret discharge line rate is between 14m/min and 30m/mm; (2) The product of the take up velocity and the draw ratio is between 3900 and 4500. Thus provided are a high added value hygroscopic fiber which has high moisture absorptivity without losing the strength, chemical resistant, and heat resistant characteristics of polyamides.
IPC 8 full level
CPC (source: EP KR US)
A41B 9/00 (2013.01 - KR); D01D 5/04 (2013.01 - KR); D01D 5/12 (2013.01 - EP US); D01F 6/60 (2013.01 - EP KR US); D01F 6/605 (2013.01 - KR); Y10T 428/249921 (2015.04 - EP US); Y10T 428/2915 (2015.01 - EP US)
Citation (search report)
- [A] JP 2009068132 A 20090402 - TORAY INDUSTRIES
- [A] JP 2004036034 A 20040205 - TORAY INDUSTRIES
- [A] JP 2004270109 A 20040930 - TORAY INDUSTRIES
- [A] JP 2006265787 A 20061005 - TORAY INDUSTRIES
- [A] JP 2006132041 A 20060525 - TOYO BOSEKI
- [A] WO 2009119302 A1 20091001 - TORAY INDUSTRIES [JP], et al
- [A] JP 2006233380 A 20060907 - TORAY INDUSTRIES
- See references of WO 2011122272A1
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 2554721 A1 20130206; EP 2554721 A4 20131225; EP 2554721 B1 20150121; CN 102834556 A 20121219; CN 102834556 B 20160120; JP 5741434 B2 20150701; JP WO2011122272 A1 20130708; KR 101550960 B1 20150907; KR 20130040793 A 20130424; US 2013280513 A1 20131024; WO 2011122272 A1 20111006
DOCDB simple family (application)
EP 11762512 A 20110309; CN 201180016429 A 20110309; JP 2011055454 W 20110309; JP 2011522312 A 20110309; KR 20127025362 A 20110309; US 201113636371 A 20110309