Woven geotextile fabrics
AssigneeWillacoochee Industrial Fabrics, Inc.
InventorEric Lee Booth
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Abstract
Disclosed are exemplary embodiments of woven geotextile fabrics. In exemplary embodiments, a geotextile has a water flow rate greater than 75 gallons per minute per square foot.
Claims16
A geotextile fabric consisting of a single warp yarn system that includes warp yarns and a single weft yarn system that includes weft yarns that are interwoven with the warp yarns, the geotextile configured to have a water flow rate of at least 90 gallons per minute per square foot, a tensile modulus at 2% strain cross direction of at least 30,000 pounds per foot, and an apparent opening size of no more than 0.425 millimeters, and wherein:
- the weft yarns are interwoven with the warp yarns such that the geotextile fabric has a twill weave pattern;
- the warp yarns have an oval cross-sectional shape;
- and
- the weft yarns have a circular cross-sectional shape;
- the warp yarns comprise 1300 or 1600 denier polypropylene monofilament yarns, the weft yarns comprise 2000 denier polypropylene monofilament yarns, the weft yarns are interwoven with the warp yarns such that the geotextile fabric has a 2/2 twill weave pattern, the geotextile fabric had a density of 27.5 threads per inch in a warp direction and a density of 21 threads per inch in a weft direction, the geotextile fabric is configured to have a water flow rate of at least 125 gallons per minute per square foot, a tensile modulus at 2% strain cross direction of at least 55,000 pounds per foot, a permittivity of at least 1.67 sec−1 and ultraviolet (UV) resistance (500 hours) of at least 80%.
A geotextile fabric consisting of a single warp yarn system that includes warp yarns and a single weft yarn system that includes weft yarns that are interwoven with the warp yarns, the geotextile configured to have a water flow rate of at least 90 gallons per minute per square foot, a tensile modulus at 2% strain cross direction of at least 30,000 pounds per foot, and an apparent opening size of no more than 0.425 millimeters, and wherein:
- the weft yarns are interwoven with the warp yarns such that the geotextile fabric has a twill weave pattern;
- the warp yarns have an oval cross-sectional shape;
- and
- the weft yarns have a circular cross-sectional shape;
- wherein the warp yarns comprise 1300 or 1600 denier polypropylene monofilament yarns, the weft yarns comprise 2000 denier polypropylene monofilament yarns, the weft yarns are interwoven with the warp yarns such that the geotextile fabric has a 3/3 twill weave pattern, the geotextile fabric had a density of 27.5 threads per inch in a warp direction and a density of 30 threads per inch in a weft direction, the geotextile fabric is configured to have a water flow rate of at least 125 gallons per minute per square foot, a tensile modulus at 2% strain cross direction of at least 115,000 pounds per foot, a permittivity of at least 1.67 sec−1 and ultraviolet (UV) resistance (500 hours) of at least 80%.
Dependencies are inferred from the claim text.