Patent ID: 8241537

Claim:
A method of manufacturing polymeric fibrils, comprising: providing a rotary nozzle mechanism comprising: a rotating shaft configured to spin around an axis thereof; and at least one supporting device including at least one outlet mounted thereon, the at least one rotary supporting device being pivoted on an end of the rotating shaft, wherein the axis is tilted at a tilt angle in a range of about 0 to 45 degrees with respect to a vertical direction and is configured to revolve around the vertical direction whereby the rotating shaft, when in operation, simultaneously spins around the axis and revolves at the tilt angle around the vertical direction, and the outlet is electrically connected to a discharging electrode and is connected to a duct by which a polymer solution is introduced; and applying a voltage to the discharging electrode for ejecting the polymer solution from the outlet, wherein charged polymeric fibrils are formed and piled on a receiving carrier above a collector, while the receiving carrier advances simultaneously along a direction and the outlet moves along a non-linear track, thus forming a web on a surface of the receiving carrier.