D - Textiles – Paper – 02 – J
Patent
D - Textiles, Paper
02
J
D02J 1/22 (2006.01)
Patent
CA 2430316
The invention relates to an oven for drawing fibres at elevated temperature, which oven is on two sides opposite one another provided with guide rolls dictating a zigzag up-and-down drawing trajectory for the fibre in the oven. In the oven according to the invention the drawing trajectory is at least 20 metres long and the rolls are driven. The invention also relates to a process for drawing fibres using the oven according to the invention, in particular to a process for producing highly oriented polyethylene fibres.
La présente invention concerne un four d'étirage de fibres à température élevée, lequel four se trouve sur des côtés mutuellement opposés munis de cylindres de guidage imposant une trajectoire en zigzag de mouvement alternatif vertical pour le fibre se trouvant dans le four. Dans le four selon l'invention la trajectoire d'étirage est d'au moins 20 mètres de long et les cylindres sont entraînés. L'invention concerne également un procédé d'étirage de fibres mettant en oeuvre ledit four, notamment un procédé de production de fibres en polyéthylène fortement orientées.
Dsm Ip Assets B.v.
Dsm N.v.
Fetherstonhaugh & Co.
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