Geosynthetic fabric with differential wicking capability
AssigneeNicolon Corporation
InventorsDavid Michael Jones, Kevin Nelson King, Zehong Yuan
Life of this patent
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Abstract
The present invention is directed to a geotextile fabric including a plurality of wicking yarns each having a plurality of fibers with inter-fiber voids therebetween; wherein the inter-fiber voids of the plurality of wicking yarns has a water flow of about 0.05 milliliters per day per denier (ml/day/denier) to about 1.0 milliliters per day per denier. Further, the present invention is directed to a method of making such geotextile fabric.
Claims24
A geotextile fabric comprising:
- a plurality of wicking yarns each having a plurality of fibers with inter-fiber voids therebetween;
- wherein the inter-fiber voids of the plurality of wicking yarns have a water flow rate of about 0.05 milliliters per day per denier (ml/day/denier) to about 1.0 milliliters per day per denier, as measured by a modified American Society for Testing and Materials (ASTM D) 2434 method;
- wherein the plurality of wicking yarns have a void ratio of about 0.8 to about 5;
- and wherein the geotextile fabric is a nonwoven fabric.
A geotextile fabric comprising:
- a plurality of wicking yarns each having a plurality of fibers with inter-fiber voids therebetween;
- wherein the inter-fiber voids of the plurality of wicking yarns have a water flow rate of about 0.05 milliliters per day per denier (ml/day/denier) to about 1.0 milliliters per day per denier, as measured by a modified American Society for Testing and Materials (ASTM D) 2434 method;
- wherein the plurality of wicking yarns have a void ratio of about 0.8 to about 5;
- and wherein the inter-fiber voids are formed by texturizing or a yarn bulking process.
A geotextile fabric comprising:
- a plurality of wicking yarns each having a plurality of fibers with inter-fiber voids therebetween;
- wherein the inter-fiber voids of the plurality of wicking yarns have a water flow rate of about 0.05 milliliters per day per denier (ml/day/denier) to about 1.0 milliliters per day per denier, as measured by a modified American Society for Testing and Materials (ASTM D) 2434 method;
- wherein the plurality of wicking yarns comprises a plurality of textured wicking yarns;
- and wherein the plurality of textured wicking yarns have a void ratio of about 0.8 to about 5.
A geotextile fabric comprising:
- a plurality of texturized fibers with inter-fiber voids therebetween;
- wherein the geotextile fabric has a water flow rate of at least 2 liters/linear foot per day, as measured by a modified American Society for Testing and Materials (ASTM D) 2434 method;
- and wherein the plurality of texturized fibers have a void ratio of about 0.8 to about 5.
A method for making a geotextile fabric comprising a plurality of wicking yarns each having a plurality of fibers with inter-fiber voids therebetween;
- wherein the inter-fiber voids of the plurality of wicking yarns have a water flow rate of about 0.05 milliliters per day per denier (ml/day/denier) to about 1.0 milliliters per day per denier, as measured by a modified American Society for Testing and Materials (ASTM D) 2434 method;
- the method comprising:
- weaving the plurality of wicking yarns in an axis of fabric;
- and texturizing a substantially round yarns to form the plurality of wicking yarns each having a plurality of fibers with inter-fiber voids therebetween;
- wherein the plurality of textured wicking yarns have a void ratio of about 0.8 to about 5.
A method for making a geotextile fabric comprising a plurality of wicking yarns each having a plurality of fibers with inter-fiber voids therebetween;
- wherein the inter-fiber voids of the plurality of wicking yarns have a water flow rate of about 0.05 milliliters per day per denier (ml/day/denier) to about 1.0 milliliters per day per denier, as measured by a modified American Society for Testing and Materials (ASTM D) 2434 method;
- the method comprising:
- forming a nonwoven fabric from the plurality of wicking yarns.;
- weaving a polymeric yarn in one axis of the geotextile fabric;
- and weaving the plurality of wicking yarns with the polymeric yarn in another axis of the fabric, each wicking yarn of the plurality of wicking yarns having a cross-sectional shape that is substantially round and comprising a plurality of fibers with inter-fiber voids therebetween;
- wherein the plurality of wicking yarns have a void ratio of about 0.8 to about 5.
Dependencies are inferred from the claim text.