Protective fabric having high penetration resistance
AssigneeWarwick Mills, Inc.
InventorCharles A. Howland
Life of this patent
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Abstract
A protective fabric of high penetration resistance is formed from a plurality of layered, densely woven base fabrics, each formed by tightly weaving multifilament yarns to obtain a warp yarn “density” or “cover” in excess of 100% at the center of the fill yarn, and a fill yarn density or cover preferably also in excess of 75%. The yarns themselves preferably comprise a high modulus, high breaking strength yarn of materials such as Kevlar, Spectra, or Vectran. The resultant layered fabric offers especially high penetration resistance to weapons such as ice picks and the like. Additional resistance to penetration by sharp knives is provided by interruptedly coating the base fabric with an epoxy in such a manner as to inhibit penetration while providing drapability and breathability.
Claims19
A protective fabric substrate for protection against puncture, penetration and/or ballistics comprising:
- a plurality of warp yarns densely interwoven with a plurality of fill yarns;
- wherein the denier of the fill yarn is equal or greater than the denier of the warp yarn, at least one of said warp and fill yarns comprise staple fiber, and at least one of warp and fill directions has greater than 70 ends per inch.
A protective fabric substrate for protection against puncture, penetration and/or ballistics comprising:
- a plurality of warp yarns densely interwoven with a plurality of fill yarns;
- wherein a warp crimp is greater than a fill crimp;
- and wherein the denier of the fill yarn is equal or greater than the denier of the warp yarn, at least one of said warp and fill yarn comprise staple fiber, and at least one of warp and fill directions has greater than 70 ends per inch.
A method for making a protective fabric substrate comprising the steps:
- providing a fabric substrate suitable for coating with an epoxy resin, said fabric substrate comprising a plurality of warp yarns densely interwoven with a plurality of fill yarns wherein the denier of the fill yarn is equal or greater than the denier of the warp yarn, at least one of said warp and fill yarns comprise staple fiber and at least one of warp and fill directions has greater than 70 ends per inch.
- applying a resist material on the fabric substrate in a pattern of streets dividing the surface of the fabric substrate into islands,
- coating the fabric substrate with epoxy resin, and
- removing the resist material.
Dependencies are inferred from the claim text.