Yarns, particularly yarns incorporating recycled material, and methods of making them
AssigneeReturn Textiles, LLC
InventorTimothy Coombs
Life of this patent
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AssigneeReturn Textiles, LLC
InventorTimothy Coombs
Estimating the term…
Enhanced performance yarns (41, 81) which comprise, and are functional and economic alternatives to, 100% petroleum oil based virgin continuous filament yarns, and yarns of natural fibers and methods of making them. The yarns may comprise an inner portion of spun staple fibers of recycled plastic and an outer portion comprising a different material and incorporate highly significant amounts of recycled plastics, particularly post consumer recycled (PCR), thermoplastic material such as polyethylene terephthalate (PET) which contains medium to high levels of contamination. One embodiment of yarn comprises a core (17), an inner portion (5) of spun staple fibers surrounding the core, and an outer portion (41) comprising an inner helix (43) and an outer helix (45) formed of a material different from the inner helix.
A yarn comprising an inner portion of spun staple fibers of recycled plastic and an outer portion comprising a different material.
(canceled)
A yarn comprising an inner portion of spun staple fibers and an outer portion comprising an inner helix and an outer helix formed of a material different from the inner helix.
A yarn comprising two spun staple fibers of different material, the first staple fibers being longer than the second staple fibers, the second staple fibers forming a major part of the surface of the yarn.
A yarn comprising a core formed of at least one strand of a continuous filament having a tenacity of at least about five grams per denier, a sheath of staple fibers surrounding the core, and a cover comprising an inner helix and an outer helix.
A method of forming a yarn containing staple fibers of PCR plastic, comprising spinning a plastic-surfaced yarn from the staple fibers of PCR plastic, and thereafter forming a cover over the plastic surfaced yarn.
A yarn comprising a high strength fasciated yarn comprising two spun staple fibers of different materials, the first being synthetic and not moisture absorbent and longer than the second fibers, the second fibers being material containing properties designated by the requirements of a particular end use as the desired yarn surface and forming a major part of the yarn surface.
A method of producing a spun yarn comprising two layers of sheath over a continuous core, the method comprising simultaneously feeding two different staple fibers into a spinning device to simultaneously form the two layers over the core, one of the layers being predominantly one of the staple fibers, and the other layer being predominantly the other.
A method of producing a spun yarn comprising two layers of sheath over a continuous filament core, the method comprising forming an intermediate yarn by feeding a first staple fiber into a spinning device to form a sheath of the first staple fiber over the core, and thereafter feeding a second staple fiber into a spinning device to form a sheath of the second staple fiber over the intermediate yarn.
A corespun yarn comprising a core and two sheaths over the core, the first sheath being formed of spun staple fibers of different compositional makeup than the second sheath.
A method of producing a yarn comprising a core, a sheath, and a cover, the method comprising forming an intermediate yarn by feeding a first staple fiber into a spinning device to form a sheath of the first staple fiber over the core, and thereafter forming at least one helix of a continuous yarn around the intermediate yarn.
A continuous and multi-filament yarn having a total denier of 12-800 and comprising 10-90% by weight of continuous high tenacity and high modulus monofilaments having a tenacity higher than 15 and a modulus higher than 500, intermingled with continuous lower tenacity and lower modulus monofilaments having a tenacity between 5 and 15.
A yarn comprising an inner portion of spun staple fibers of recycled plastic and an outer portion comprising a continuous filament helix.
Dependencies are inferred from the claim text.