Spinneret for flash-spinning

D - Textiles – Paper – 01 – D

Patent

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Details

D01D 4/02 (2006.01) D01D 5/11 (2006.01)

Patent

CA 2257037

A flash spin pack (20) for a flash-spinning apparatus (26) is provided in which the pack includes a spin mixture inlet that communicates with a spin mixture passage that discharges through a spinning orifice (36) that opens into a slot (24) defined by two opposing faces of the body of the spin pack (20). The slot (24) is 0.25 mm to 7 mm wide proximate the spinning orifice (36) outlet, 0.25 mm to 10 mm at the slot outlet, and the distance from the orifice outlet is 1.5 mm to 40 mm. The spin pack (20) may have five or more spinning orifices (36) that each discharge into a different slot (24) so configured.

L'invention concerne une structure pour filage éclair (20) destinée à une filière de type éclair (26), comprenant une admission de mélange à filer reliée à un conduit d'admission qui débouche sur un orifice de filage (36), lui-même prolongé par une fente (24) que définissent deux faces opposées du corps de la structure (20). La fente (24) a une largeur de 0,25 à 7 mm près de l'orifice de filage (36) et de 0,25 à 10 mm près de la sortie de fente, et la distance depuis l'orifice est de 1,5 à 40 mm. La structure (20) peut avoir cinq ou plus de cinq orifices de filage (36) débouchant chacun sur une fente différente (24), telle que décrite.

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