Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Conveying or aligning particulate material
Patent
1995-06-02
1997-07-01
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Conveying or aligning particulate material
264465, 264 39, 264205, 425 722, 4251748E, 425229, D01D 511
Patent
active
056435240
ABSTRACT:
This invention relates to flash spinning a plexifilamentary film-fibril strand and laying it down into sheet material including the step of subjecting the strand to an electrostatic charge. The invention is particularly focused on cleaning, and maintaining clean, the target plate of the electrostatic charging system by scrubbing or scouring the surface of the target plate with a highly abrasive brush moving at a relatively high speed. The target plate is selected to be abrasion resistant.
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Bednarz Thomas
Gilbert De Cauwer Jacques
Niederpruem Ottmar
Stachnik Michel
Woll Jean Francois
E. I. Du Pont de Nemours and Company
Thurlow Jeffery R.
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