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AssigneeArteva North America S.A.R.L.
InventorsMach A. DeBenedictis, Virgil J. Adkins, Winston A. Phelps
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The invention describes a low tension relax process and corresponding apparatus, wherein a tension gate is incorporated into a relax zone in a yarn production process. The tension gate can be anything that produces a drag on the yarn threadline such as an air drag device, a liquid drag device, or a solid surface contact drag device, or a combination of these. A tension gate is a device which when used in a relax zone has an outlet yarn tension greater than the inlet yarn tension thus creating a tension differential. The tension gate provides a tension differential of at least 5 mg per denier. A relax zone is typical found in a spin-drawing process, a draw-twisting process, a draw-winding process, or a draw-bulking process. The invention describes a yarn making process with a tension gate in the relax zone wherein the tension gate creates a tension differential on said yarn of at least 5 milligrams per denier.
In a yarn relaxing process having a low tension relax zone, comprising:
In a yarn relaxing process having a low tension relax zone, comprising:
In a process for relaxing yarn in a draw-twisting, draw-winding, or draw-bulking process while improving the stability of the yarn, comprising:
In a process for relaxing yarn in a spin draw process while improving the stability of yarn, comprising:
A tension gate device for increasing the tension on yarn, comprising:
A tension gate device for increasing the tension on yarn, comprising the combination of one or more interminglers, one or more finish applicators, and one or more rolls.
A tension gate device for increasing the tension on yarn, comprising:
A tension gate device for increasing the tension on yarn, comprising:
A tension gate device for increasing the tension on yarn, comprising:
Dependencies are inferred from the claim text.