EP 3327181 A1 20180530 - METHOD FOR MANUFACTURING AND DEVICE FOR MANUFACTURING ULTRAFINE FIBER NONWOVEN FABRIC
Title (en)
METHOD FOR MANUFACTURING AND DEVICE FOR MANUFACTURING ULTRAFINE FIBER NONWOVEN FABRIC
Title (de)
VERFAHREN ZUR HERSTELLUNG UND VORRICHTUNG ZUR HERSTELLUNG VON ULTRAFEINEN FASERVLIESSTOFFEN
Title (fr)
PROCÉDÉ DE FABRICATION ET DISPOSITIF DE FABRICATION DE NONTISSÉ EN FIBRES ULTRAFINES
Publication
Application
Priority
- JP 2015144966 A 20150722
- JP 2016070580 W 20160712
Abstract (en)
An object to be solved by the present invention is in that a spinning die 1 for producing ultrafine fiber nonwoven fabric is made miniaturized and its productivity thereof is enhanced. The spinning die 1 has a substantial cuboid shape and a plurality of nozzle holes 2 is disposed in a longitudinal direction. And a slit for jetting hot air is disposed only in one side of the nozzle holes 2. Thermoplastic polymer is melt blown from the nozzle 2 of the spinning die 1 to obtain ultrafine fibers. Hot air is jetted from the slit 4 disposed at only one side of the nozzle holes 2. The result is that the ultrafine fibers melt blown in a direction inclined with respect to an axis direction of the nozzle. The blown ultrafine fibers are accumulated by sucking to downward to obtain ultrafine fiber nonwoven fabric.
IPC 8 full level
D01D 5/08 (2006.01); D01D 4/02 (2006.01); D04H 3/033 (2012.01)
CPC (source: EP US)
D01D 4/025 (2013.01 - EP US); D01D 5/08 (2013.01 - US); D01D 10/00 (2013.01 - US); D04H 3/016 (2013.01 - US); D04H 3/033 (2013.01 - EP US); D04H 3/16 (2013.01 - US); D01D 5/0985 (2013.01 - EP US); D10B 2503/00 (2013.01 - US); D10B 2505/04 (2013.01 - 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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3327181 A1 20180530; EP 3327181 A4 20190220; JP 2017025433 A 20170202; JP 6063012 B1 20170118; US 2018209081 A1 20180726; WO 2017014109 A1 20170126
DOCDB simple family (application)
EP 16827669 A 20160712; JP 2015144966 A 20150722; JP 2016070580 W 20160712; US 201615746224 A 20160712