EP 1797226 A1 20070620 - MELTBLOWN METHOD FOR MELT SPINNING FINE NON-WOVEN FIBRES AND DEVICE FOR CARRYING OUT SAID METHOD
Title (en)
MELTBLOWN METHOD FOR MELT SPINNING FINE NON-WOVEN FIBRES AND DEVICE FOR CARRYING OUT SAID METHOD
Title (de)
MELTBLOWN-VERFAHREN ZUM SCHMELZSPINNEN VON FEINEN VLIESFASERN UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS
Title (fr)
PROCEDE DE FUSION-SOUFFLAGE DESTINE AU FILAGE PAR FUSION DE FINES FIBRES DE NON-TISSES ET DISPOSITIF DE MISE EN OEUVRE DE CE PROCEDE
Publication
Application
Priority
- EP 2004014403 W 20041217
- DE 102004047537 A 20040930
Abstract (en)
[origin: WO2006037371A1] The invention relates to a meltblown method for melt spinning fine non-woven fibres and to a device for carrying out said method. According to the invention, a polymer melt is extruded, in order to form several fibre strands, through several nozzle bores of a spinning nozzle and twisted on the outlet side of the nozzle bores by means of a cold blow flow. According to the invention, the blow flow is fed to the fibre strands in an acceleration path wherein the fibre stands and the blow flow are accelerated in such a manner that the fibre strands are twisted in order to form continuous fine fibres. According to the inventive device, the inventive acceleration path is formed between the upper edges and the lower edges of the two blow nozzle openings below the spinning nozzle.
IPC 8 full level
D01D 4/02 (2006.01); D01D 5/098 (2006.01)
CPC (source: EP US)
D01D 4/025 (2013.01 - EP US); D01D 5/0985 (2013.01 - EP US); Y10T 442/60 (2015.04 - EP US)
Citation (search report)
See references of WO 2006037371A1
Designated contracting state (EPC)
CH DE FR IT LI TR
DOCDB simple family (publication)
WO 2006037371 A1 20060413; CN 101065521 A 20071031; EP 1797226 A1 20070620; US 2007202769 A1 20070830
DOCDB simple family (application)
EP 2004014403 W 20041217; CN 200480044476 A 20041217; EP 04804007 A 20041217; US 69323507 A 20070329