D - Textiles – Paper – 04 – H
Patent
D - Textiles, Paper
04
H
3/122, 317/3
D04H 1/56 (2006.01) A61F 2/06 (2006.01)
Patent
CA 1297147
ABSTRACT IMPROVEMENTS IN ELECTROSTATICALLY PRODUCED STRUCTURES AND METHODS OF MANUFACTURING THEREOF. In apparatus comprising needles (10), a mandrel (11) and electrostatically charged plates (12, 13, 14 and 15), variation of the electrostatic potential on the mandrel (11) and the plates (12, 13, 14 and 15) produces variation of the fibrous structure produced. In general, where the mandrel (11) is significantly more attractive to the fibres, a microstructure of fibres of substantially uniform diameter is produced, these fibres being generally randomly orientated. Where the voltages on the mandrel (11) and on the plates (13 and 15) are varied to lessen the attraction of the mandrel (11) relative to the plates (13, 15) the fibrous structure is varied to produce fibres of a larger diameter than the original micro fibrous structure, this having a significant effect on characteristics of the fibrous structure.
519653
Swabey Ogilvy Renault
University Of Liverpool (the)
LandOfFree
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