Global Patent Index - EP 2841634 B1

EP 2841634 B1 20180606 - METHOD AND DEVICE FOR MELT-BLOWING, FORMING AND PLAITING FINITE FIBRES TO PRODUCE A FIBROUS NONWOVEN

Title (en)

METHOD AND DEVICE FOR MELT-BLOWING, FORMING AND PLAITING FINITE FIBRES TO PRODUCE A FIBROUS NONWOVEN

Title (de)

VERFAHREN UND VORRICHTUNG ZUM SCHMELZBLASEN, FORMIEREN UND ABLEGEN ENDLICHER FASERN ZU EINEM FASERVLIES

Title (fr)

PROCÉDÉ ET DISPOSITIF DE FUSION-SOUFFLAGE, DE FORMATION ET DE DÉPÔT DE FIBRES FINIES POUR OBTENIR UN NON-TISSÉ

Publication

EP 2841634 B1 20180606 (DE)

Application

EP 13718534 A 20130415

Priority

  • DE 102012008625 A 20120427
  • EP 2013057777 W 20130415

Abstract (en)

[origin: WO2013160134A1] The invention relates to a method and a device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven. Here, the fibre streams which are produced by a melt-blowing die and a hot air flow are blown into a forming gap of a forming element, wherein the fibres are joined together within the forming gap to produce a fibre composite. In order to influence the filling and the forming of the fibres within the forming gap directly below the melt-blowing die, according to the invention the fibres are freely guided substantially vertically from the melt-blowing die as far as the forming gap via an adjustable blowing section, wherein the adjustability of the blowing section lies in the range from 100 mm to 2000 mm. In this way, both very fine fibres and coarse fibres can advantageously be formed to produce a loose fibre composite.

IPC 8 full level

D04H 1/56 (2006.01); D01D 5/098 (2006.01); D04H 1/70 (2012.01)

CPC (source: EP)

D01D 5/0985 (2013.01); D04H 1/56 (2013.01); D04H 1/70 (2013.01)

Citation (examination)

Citation (opposition)

Opponent : Reifenhäuser GmbH & Co. KG Maschinenfabrik

  • US 4375446 A 19830301 - FUJII SHIGEO [JP], et al
  • EP 1570121 B1 20090218 - 3M INNOVATIVE PROPERTIES CO [US]
  • WO 2008087193 A2 20080724 - OERLIKON TEXTILE GMBH & CO KG [DE], et al
  • WO 2004083510 A1 20040930 - SAURER GMBH & CO KG [DE], et al
  • US 2010266824 A1 20101021 - WESTWOOD ALISTAIR DUNCAN [US], et al
  • US 3978185 A 19760831 - BUNTIN ROBERT R, et al
  • US 2007042662 A1 20070222 - NOELLE FREDERIC [FR], et al
  • "Overview and Analysis of the Meltblown Process and Parameters", JOURNAL OF TEXTILE AND APPAREL, TECHNOLOGY AND MANAGEMENT, vol. 6, no. 1, 2008, pages 1 - 24, XP055391586
  • BRESEE R. , ET AL.: "Influence of Process Conditions on Melt Blown Web Structure. Part IV - Fiber Diameter", JOURNAL OF ENGINEERED FIBERS AND FABRICS, vol. 1, no. 1, 2006, XP055574538
  • DENIZ DURAN ET AL.: "Investigation of the Physical Characteristics of Polypropylene Meltblown Nonwovens under varying production parameters", THERMOPLASTIC ELASTOMERS, March 2012 (2012-03-01), pages 243 - 264, XP055574544

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)

WO 2013160134 A1 20131031; CN 104246045 A 20141224; CN 104246045 B 20161102; EP 2841634 A1 20150304; EP 2841634 B1 20180606

DOCDB simple family (application)

EP 2013057777 W 20130415; CN 201380021780 A 20130415; EP 13718534 A 20130415