Device for forming fiber felts

摘要

Device intended for an installation for forming fibrous felts, the fibers being formed from a material that can be attenuated by internal centrifugation and by attenuation by means of a gas stream, the flow of fibers being in the form of a tubular veil, the device including air blowing means that expel air tangentially to the tubular veil so as to impress a rotational movement on the veil, wherein the blowing means deliver air in a direction perpendicular to the main direction of the flow of the tubular veil.