B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
317/3
B65H 49/00 (2006.01) D01D 11/02 (2006.01) D04H 3/03 (2006.01)
Patent
CA 1058691
METHOD AND APPARATUS FOR FORWARDING AND CHARGING A BUNDLE OF FILAMENTS ABSTRACT OF THE DISCLOSURE Method and apparatus for charging and forwarding a group of melt spun, synthetic organic polymeric filaments to a web formation zone wherein an attenuator forwards the group of filaments along a path into impingement with a target electrode positioned downstream from the attenuator and in the filament path, a charging electrode being positioned to cooperate with the target electrode to for a filament-charging electric field at the location where the filament group impinges and is being spread by the target electrode. The filaments are advanced in such a manner that the filaments are in a bundles configuration prior to contact with the target electrode and are free to spread from the bundle configuration to a fan configuration as they pass through and are charged by the electric field. The apparatus is provided with a plurality of attenuators and associated charging electrodes positioned on opposite sides of the target electrode in a staggered relationship to spread filament bundles into fan configurations and forward the filament to the web formation zone. The filament groups in fan configurations intermingle with adjacent filament groups below the target electrode in such a manner that the groups of filaments entering the web formation zone form a curtain.
251287
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