Process for forming unidirectionally oriented fiber structures

Details Process for forming unidirectionally oriented fiber structures Process for forming unidirectionally oriented fiber structures

D - Textiles, Paper

02

J

D02J 1/18 (2006.01) B29C 70/20 (2006.01) B32B 5/26 (2006.01) D04H 3/04 (2006.01) D04H 3/12 (2006.01) D04H 13/00 (2006.01) F41H 5/04 (2006.01)

Patent

CA 2669822

A process for forming a unidirectionally oriented fiber structure formed of high tenacity fibers. A plurality of yarns of high tenacity fibers are supplied, with the yarns being unidirectionally oriented. The yarns are coated with a liquid having a viscosity of about 5 to about 600 centipoises and tension is applied to the yarns. The yarns are passed through a fiber spreading device and the yarns are dried. The yarns are reduced in thickness and increased in width after passing through the fiber spreading device, with the fibers forming the yarns being spread apart, thus providing a relatively thin unidirectionally oriented fiber structure.

L'invention concerne un procédé de formation d'une structure à fibres orientées de manière unidirectionnelle formée de fibres à ténacité élevée. Une pluralité de fils de fibres à ténacité élevée est fournie, les fils étant orientés de manière unidirectionnelle. Les fils sont revêtus d'un liquide ayant une viscosité d'environ 5 à environ 600 centipoises et une tension est appliquée aux fils. Les fils sont passés à travers un dispositif élargisseur de fibres et les fils sont séchés. Les fils sont réduits en épaisseur et augmentés en largeur après être passé à travers le dispositif élargisseur de fibres, les fibres formant les fils étant espacées, en fournissant ainsi une structure à fibres orientées de manière unidirectionnelle relativement mince.

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