Patent ID: 7488441
Filing Date: 2009-02-10
Classification: B29C,B29K,D01D,D04H

Abstract:
1. Process for forming a nonwoven web comprising the steps of: a. providing a source of fibers and/or filaments; b. subjecting said fibers and/or filaments to a first electrostatic charge from a first direction using a pin array; c. selectively charging pins in said array so that less than the total number of pins is fully charged at some point in time in an operation cycle; d. varying the charge level and/or pins that are charged while maintaining the desired electrostatic effect; e. subjecting said fibers and/or filaments to a second electrostatic charge from a second direction generally opposite said first direction; and f. collecting the fibers and/or filaments on a forming surface to form a nonwoven web.