Folding process filament

A process for producing a bundle of filaments in the untwisted from a plurality of filaments comprising: unwinding filaments from a piece of creel constituted by a plurality of creels (1), each of which has a coil (2) with each of the windings filaments, then the filaments released folded together; and winding the folded yarn on a winder (5) to produce a tow, wherein each of the creel has a controller (7) for regulating the independent drive and a rotation speed of the creel (1), of so that the creel (1) to regulate the speed of rotation while rotating about an axis of rotation by a power autonomous pulse of the same, resulting therefore an unwinding tension of the filaments uniform, wherein filament is a filament wholly aromatic polyamide.