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POLYMERIC FILAMENT PROVIDED WITH AT LEAST ONE LONGITUDINAL CANAL, A MATERIAL COMPRISING SAID FILAMENTS, AN ITEM MADE FROM SAID MATERIAL, AND A MANUFACTURING PROCESS FOR SAID FILAMENT
POLYMERIC FILAMENT PROVIDED WITH AT LEAST ONE LONGITUDINAL CANAL, A MATERIAL COMPRISING SAID FILAMENTS, AN ITEM MADE FROM SAID MATERIAL, AND A MANUFACTURING PROCESS FOR SAID FILAMENT
A polymeric filament (1,6) comprising on at least one portion of its length at least one longitudinal canal (7,8,9,10,16), full or empty, that forms, in a section (VA, VB, VC) transverse to said filament (1,6), an orifice opening out on to the surface or a closed, internal orifice (16a), characterized in that the disposition of said orifice (16a) varies from one transverse section (VA, VB, VC) to the other in the length of said portion, such that the longitudinal canal (7,8,9,10, 16) is disposed longitudinally and not in the longitudinal direction of said filament. In one embodiment, the filament (1,6) is rectilinear and comprises on its entire length at least one continuous longitudinal canal (7,8,9,10,16) disposed continuously in a spiral in the same direction as the entire length of the filament (1,6). The invention also pertains to a textile material in a woven, knitted, or unwoven form and comprising said filaments (1,6) from which a textile item is made, in particular for sports activities, and to a manufacturing process for said filament (1,6).
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