EP 4177389 A1 20230510 - SPUNBOND NON-WOVEN FABRIC WITH IMPROVED OPENING QUALITY AND NO HAZARDOUS RESIDUE, AND MANUFACTURING METHOD AND APPARATUS THEREOF
Title (en)
SPUNBOND NON-WOVEN FABRIC WITH IMPROVED OPENING QUALITY AND NO HAZARDOUS RESIDUE, AND MANUFACTURING METHOD AND APPARATUS THEREOF
Title (de)
SPINNVLIESSTOFF MIT VERBESSERTER ÖFFNUNGSQUALITÄT UND OHNE GEFÄHRLICHEN RÜCKSTAND SOWIE HERSTELLUNGSVERFAHREN UND VORRICHTUNG DAFÜR
Title (fr)
NON-TISSÉ FILÉ-LIÉ AYANT UNE QUALITÉ D'OUVERTURE AMÉLIORÉE ET AUCUN RÉSIDU DANGEREUX, ET PROCÉDÉ ET APPAREIL DE FABRICATION DE CELUI-CI
Publication
Application
Priority
- KR 20200114900 A 20200908
- KR 20210103337 A 20210805
- KR 2021010410 W 20210806
Abstract (en)
The present invention relates to a spunbond nonwoven fabric with improved opening quality and no hazardous residue, a manufacturing method thereof, and a manufacturing apparatus thereof. The method for manufacturing a spunbond nonwoven fabric according to the present invention includes a step of allowing the continuous filament bundle to collide with a metal member containing bismuth (Bi) or a bismuth alloy to obtain filaments opened by frictional charging.
IPC 8 full level
D04H 3/147 (2012.01); D04H 3/007 (2012.01); D04H 3/011 (2012.01)
CPC (source: EP US)
D01D 11/02 (2013.01 - US); D04H 3/011 (2013.01 - US); D04H 3/03 (2013.01 - US); D04H 3/033 (2013.01 - EP); D04H 3/16 (2013.01 - 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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4177389 A1 20230510; CN 116057220 A 20230502; JP 2023539153 A 20230913; JP 7575576 B2 20241029; US 2023279594 A1 20230907; WO 2022055131 A1 20220317
DOCDB simple family (application)
EP 21866998 A 20210806; CN 202180058696 A 20210806; JP 2023512353 A 20210806; KR 2021010410 W 20210806; US 202118007482 A 20210806