Functional elastic composite yarn, methods for making the same and articles incorporating the same
First Claim
Patent Images
1. A functional elastic composite yarn, comprising:
- at least one elastic member having a relaxed unit length L and a drafted length of (N×
L), wherein N is in the range of about 1.0 to about 8.0; and
at least one functional covering filament around the elastic member, the functional covering filament having a length that is greater than the drafted length of the elastic member, wherein the functional covering filament adds at least one property to the yarn selected from the group consisting of biological, electrical, optical, magnetic, thermoresponsive, sensory and actuation properties,such that a portion of an elongating stress imposed on the composite yarn is carried by the elastic member.
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Accused Products
Abstract
A functional elastic composite yarn comprises an elastic member that is surrounded by at least one functional covering filament(s). The functional covering filament has a length that is greater than the drafted length of the elastic member such that substantially all of an elongating stress imposed on the composite yarn is carried by the elastic member. The elastic composite yarn may further include an optional stress-bearing member surrounding the elastic member and the functional covering filament.
74 Citations
48 Claims
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1. A functional elastic composite yarn, comprising:
at least one elastic member having a relaxed unit length L and a drafted length of (N×
L), wherein N is in the range of about 1.0 to about 8.0; andat least one functional covering filament around the elastic member, the functional covering filament having a length that is greater than the drafted length of the elastic member, wherein the functional covering filament adds at least one property to the yarn selected from the group consisting of biological, electrical, optical, magnetic, thermoresponsive, sensory and actuation properties, such that a portion of an elongating stress imposed on the composite yarn is carried by the elastic member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 48)
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30. A method for forming a functional elastic composite yam, comprising:
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(1) providing; (a) an elastic member having a relaxed length; and (b) at least one nonmetallic functional covering filament; (2) drafting the elastic member; (3) placing the functional covering filament substantially parallel to and in contact with the drafted length of the elastic member; and (4) allowing the elastic member to relax to entangle the elastic member and the functional covering filament to form the composite yarn, wherein the at least one functional covering filament adds at least one property to the yarn selected from the group consisting of biological, electrical, optical, magnetic, thermo-responsive, sensory and actuation properties. - View Dependent Claims (31, 32, 33)
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34. A method for forming a functional elastic composite yarn, comprising:
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(1) providing; (a) an elastic member having a relaxed length; and (b) at least one non-metallic functional covering filament, wherein the functional covering filament adds at least one property to the yarn selected from the group consisting of biological, electrical, optical, magnetic, thermoresponsive, sensory and actuation properties; (2) drafting an elastic member; (3) twisting the functional covering filament with the drafted elastic member; and (4) allowing the elastic member to relax. - View Dependent Claims (35, 36, 37)
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38. A method for forming a functional elastic composite yarn, comprising:
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(1) providing; (a) an elastic member having a relaxed length; and (b) at least one non-metallic functional covering filament, wherein the functional covering filament adds at least one property to the yarn selected from the group consisting of biological, electrical, optical, magnetic, thermoresponsive, sensory and actuation properties; (2) drafting the elastic member; (3) wrapping the functional covering filament about the drafted length of the elastic member; and (4) allowing the elastic member to relax. - View Dependent Claims (39, 40, 41)
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42. A method for forming a functional elastic composite yarn, comprising:
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(1) providing; (a) an elastic member having a relaxed length; and (b) at least one functional covering filament, wherein the functional covering filament adds at least one property to the yarn selected from the group consisting of biological, electrical, optical, magnetic, thermoresponsive, sensory and actuation properties; (2) forwarding the elastic member through an air jet; (3) within the air jet, covering the elastic member with the functional covering filament; and (4) allowing the elastic member to relax. - View Dependent Claims (43, 44, 45)
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46. A fabric comprising a plurality of functional elastic composite yarns, wherein each functional elastic composite yarn comprises:
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an elastic member having a relaxed unit length L and a drafted length of (N×
L), wherein N is in the range of about 1.0 to about 8.0; andat least one functional covering filament around the elastic member, the functional covering filament having a length that is equal to or greater than the drafted length of the elastic member, wherein the functional covering filament adds at least one property to the yarn selected from the group consisting of biological, electrical, optical, magnetic, thermoresponsive, sensory and actuation properties such that substantially all of an elongating stress imposed on the composite yarn is carried by the elastic member. - View Dependent Claims (47)
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Specification