Bi-directional and multi-axial fabrics and fabric composites

D - Textiles – Paper – 03 – D

Patent

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Details

D03D 15/00 (2006.01) B32B 5/10 (2006.01) D03D 11/00 (2006.01) D03D 15/08 (2006.01) D04B 1/00 (2006.01) D04B 21/14 (2006.01) F41H 5/00 (2006.01) F41H 5/04 (2006.01)

Patent

CA 2500733

Bi-directional and multi-axial fabrics, fabric composites, ballistically resistant assemblies thereof, and the methods by which they are made. The fabrics are comprised of sets of strong, substantially parallel, unidirectional yarns lying in parallel planes, one above the other, with the direction of the yarns in a given plane rotated at an angle to the direction of the yarns in adjacent planes; and one or more sets of yarns having lower strength and higher elongation interleaved with the strong yarns. The fabrics of the invention provide superior ballistic effectiveness compared to ordinary woven and knitted fabrics but retain the ease of manufacture on conventional looms and knitting machines.

L'invention concerne des tissus, des composites de tissus et des ensembles à résistance balistique correspondants, bidirectionnels et multiaxiaux, et leurs procédés d'élaboration. Les tissus comprennent des séries de fils solides, sensiblement parallèles, unidirectionnels, selon des plans parallèles, les uns au-dessus des autres, et la direction des fils dans un plan donné est en rotation suivant un angle par rapport à la direction des fils dans les plans adjacents. On donne à une ou plusieurs séries de fils une résistance inférieure et un allongement supérieur en entrelacement avec les fils solides susmentionnés. Il en résulte une efficacité de protection balistique accrue par rapport aux tissus tissés et à mailles classiques, mais avec une facilité de fabrication équivalente sur les métiers et les métiers chaîne classiques..

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