D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
D01F 6/60 (2006.01) D01D 5/088 (2006.01)
Patent
CA 2167378
Molten polyamide filamens (10) are extruded from spinneret capillaries through a gas filled gap (12) and into a quench bath (13) which contains a heated aqueous liquid. The bath has a nozzle defining a vertically disposed cylindrical passageway with its entrance in the bath below the bath surface. The filaments are converged into a filament bundle at the entrance and withdrawn from the exit of the passageway at a withdrawal speed of about 1500 to about 3500 meters per minute. The polyamide polymer is extruded from the spinneret such that the jet velocity in the spinneret capillaries is between 2 and 10 % of the withdrawal speed of the filament from the exit of the nozzle passageway.
Des filaments de polyamides fondus (10) sont extrudés à partir des orifices capillaires d'une filière dans un espace (12) remplis de gaz puis passent dans un bain de refroidissement contenant un liquide aqueux chaud (13). Ledit bain comporte une buse délimitant un passage cylindrique vertical dont l'entrée se trouve sous la surface du bain. Les filaments convergent en faisceau vers l'entrée dudit passage et en ressortent à une vitesse de 1500 à 3500 m à la minute. La vitesse d'extrusion du polymère lors du passage dans les orifices capillaires de la filière se situe entre 2 et 10 % de la vitesse du filament à sa sortie de la buse.
Herold John Henry II
Kobsa Henry
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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