Synthetic fibers and pile fabrics made therefrom
AssigneeE. I. Du Pont de Nemours and Company
InventorJohn Humphrey Wessells
Life of this patent
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Abstract
A cut pile fabric is produced using a grass-like fiber and, optionally, a crimped or crimpable fiber of lower denier than said grass-like fiber plied therewith. The pile fabric made from such fibers has improved aesthetics (e.g., appearance) and mechanical (e.g., frictional) properties, and closely simulates natural turf.
Claims15
Fabric comprising a backing and a multiplicity of fibers extending from said backing in the form of a cut pile layer and being secured thereto by an adhesive, said multiplicity of fibers comprising:
- grass-like fibers comprising a rib and two webs which form a partially folded structure of bi-arcuate cross-section and having a denier per fiber of about 200 to 1500 and a major dimension of cross-section of at least about 0.02 inch, and
- crimped fibers having a denier per fiber of about 6 to 150,
- with the proviso that:
- 1. said grass-like fibers and said crimped fibers each comprise at least about 10 weight percent of said multiplicity of fibers, and
- 2. the denier-per-fiber ratio of the said grass-like fibers to the said crimped fibers is greater than about 3:1.
Fabric comprising a backing and a multiplicity of fibers extending from said backing in the form of a cut pile layer being secured thereto by an adhesive, said multiplicity of fibers comprising grass-like fibers of a polyamide of bi-arcuate cross-section having a denier-per-fiber of 200-1500 and having two webs joined together and a rib of up to twice the thickness of said webs forming a V-cross-section having an included angle not greater than 160.degree..
Fabric comprising a backing and a multiplicity of fibers extending from said backing in the form of a cut pile layer and being secured thereto by an adhesive, said multiplicity of fibers comprising:
- grass-like fibers of bi-arcuate cross-section having a denier-per-fiber of 200 to 1500 and two webs joined together and a rib forming an included angle of not greater than 160.degree. and crimped fibers having a denier-per-fiber of 6 to 330.
A grass-like fiber of a synthetic polymeric material of bi-arcuate cross-section having a denier-per-fiber of 200 to 1500 and having two webs joined together and a rib.
A combined yarn comprising a first yarn comprising at least one grass-like fiber of a synthetic polymeric material having a denier-per-fiber of 200 to 1500 and having two webs joined together and a rib to form a V-cross-section having an included angle of not greater than 160.degree., plied together with a second yarn comprising fibers having a denier per fiber of 6 to 330.
Dependencies are inferred from the claim text.