Process and apparatus for making a non-woven sheet

Details Process and apparatus for making a non-woven sheet Process and apparatus for making a non-woven sheet

D - Textiles, Paper

01

D

18/559

D01D 5/06 (2006.01) D01D 5/11 (2006.01) D04H 1/22 (2006.01)

Patent

CA 2029625

TITLE Process and Apparatus for Making a Non-Woven Sheet ABSTRACT OF THE DISCLOSURE A device to detect the loss of a continuous spun web of plexifilament fibers exiting a forwarding apparatus depends on the mannr in which the filaments oscillate in a cross machine direction prior to depositing onto a collecting surface. The loss of these fibers, due to hang up in the filament forwarding device, can cause multiple position spinning machine loss due to the knock down of nearby spinning positions or wrap the sheet on forwarding rolls. The hang up in the forwarding device is referred to as a blow-up. This invention detects the instant a blow-up occurs through the loss of electrostatic charge due to the absence of the oscillating swath at the sensor. When the instant charge is lost at the sensor, a signal indicates a blow-up has occurred. I.45 TK-2610

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