EP 1837429 B1 20120111 - Process and device for making a nonwoven web by depositing synthetic fibers
Title (en)
Process and device for making a nonwoven web by depositing synthetic fibers
Title (de)
Verfahren und Vorrichtung zum Ablegen synthetischer Fasern zu einem Vlies
Title (fr)
Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques
Publication
Application
Priority
EP 06005679 A 20060320
Abstract (en)
[origin: EP1837429A1] The method for laying down synthetic fibers to form a non-woven, comprises removing the fibers from a melt spinning by a conveying fluid, accelerating the fiber into a guiding channel and leaving the conveying fluid and the fibers from the guiding channel as a fiber flow. The fiber flow is separated through a stacking belt guided diagonally to the channel and is directed before striking on the stacking belt, to a side in the direction of the stacking belt in such a way that the fibers strike the stacking belt in an angle of less than 60[deg] and traverse a path of less than 300 mm. The method for laying down synthetic fibers to form a non-woven, comprises removing the fibers from a melt-spinning by a conveying fluid, accelerating the fiber into a guiding channel and leaving the conveying fluid and the fibers from the guiding channel as a fiber flow. The fiber flow is separated through a stacking belt guided diagonally to the channel and is directed before striking on the stacking belt, to a side in the direction of the stacking belt in such a way that the fibers strike the stacking belt in an angle of less than 60[deg] and traverse a path of less than 300 mm. The intensity of the deviation of the fiber flow is changed depending on a process- or a product parameter. The deviation of the fiber flow is effected by a guiding plate, which extends itself sideways to the fibers between the guiding channel and the stacking belt, and by an additional air current, which flows in the direction of the stacking belt in a cross section through the fibers and also by a form body, which extends just above the stacking belt. The conveying fluid is injected into the guiding channel with an excess pressure of 0.5-5 bar. An independent claim is included for a device for laying down synthetic fibers to form a non-woven.
IPC 8 full level
D04H 3/03 (2012.01); D04H 3/037 (2012.01); D04H 3/16 (2006.01)
CPC (source: EP)
D04H 3/03 (2013.01); D04H 3/037 (2013.01); D04H 3/16 (2013.01)
Citation (examination)
EP 1712668 A1 20061018 - SAURER GMBH & CO KG [DE]
Designated contracting state (EPC)
CH DE FR IT LI
DOCDB simple family (publication)
DOCDB simple family (application)
EP 06005679 A 20060320