Global Patent Index - EP 2888393 A1

EP 2888393 A1 20150701 - MELT-SPINNING METHOD AND MELT-SPINNING APPARATUS FOR PRODUCING A CRIMPED YARN

Title (en)

MELT-SPINNING METHOD AND MELT-SPINNING APPARATUS FOR PRODUCING A CRIMPED YARN

Title (de)

SCHMELZSPINNVERFAHREN UND SCHMELZSPINNVORRICHTUNG ZUR HERSTELLUNG EINES GEKRÄUSELTEN FADENS

Title (fr)

PROCÉDÉ ET DISPOSITIF DE FILAGE À CHAUD SERVANT À PRODUIRE UN FIL BOUCLÉ

Publication

EP 2888393 A1 20150701 (DE)

Application

EP 13747388 A 20130808

Priority

  • DE 102012016799 A 20120823
  • EP 2013066608 W 20130808

Abstract (en)

[origin: WO2014029627A1] The invention relates to a melt-spinning method and a melt-spinning apparatus for producing a crimped yarn. In this case, by spinning a plurality of filaments, at least one filament bundle is produced from a thermoplastic polymer, cooled, drawn and compressed by means of an air stream in a stuffer box to form a yarn plug, wherein the yarn plug is disentangled to form a crimped yarn and wound up to form a package. In order to be able to set the tendency to shrink and the crimp stability independently of one another on the crimped yarn, according to the invention, prior to crimping, the drawn filament bundle is heated to a relaxation temperature for relaxation in a first heat treatment and to a crimping temperature for preliminary temperature control in a second heat treatment. To this end, at least one further treatment means for heat treatment of at least one filament bundle prior to running into the stuffer box is provided between a drawing device and a texturing device.

IPC 8 full level

D01D 5/22 (2006.01); D01D 10/02 (2006.01); D02G 1/12 (2006.01); D02J 13/00 (2006.01)

CPC (source: CN EP US)

D01D 5/08 (2013.01 - US); D01D 5/22 (2013.01 - CN EP US); D01D 10/02 (2013.01 - CN EP US); D02J 13/001 (2013.01 - CN EP US); D10B 2331/04 (2013.01 - US); D10B 2503/04 (2013.01 - US)

Citation (search report)

See references of WO 2014029627A1

Citation (examination)

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)

WO 2014029627 A1 20140227; CN 104583472 A 20150429; CN 104583472 B 20170419; EP 2888393 A1 20150701; US 2015233020 A1 20150820

DOCDB simple family (application)

EP 2013066608 W 20130808; CN 201380044073 A 20130808; EP 13747388 A 20130808; US 201314421316 A 20130808