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US 2004/0170828 A1Published application
Polymer filaments having profiled cross-section
AssigneeInvista North America S.A.R.L.
InventorRichard T. Shoemaker
Life of this patent
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Abstract
The present invention is directed to a multi-filament yarn formed at least in part from filaments having cross-sectional zig-zag or double “W” shape with a 180 degree axis of symmetry. The filaments have a denier per filament generally in the range of about 0.1 to about 4.0. Fabrics made from yarns formed with the filaments have high moisture wicking, soft hand, and a silk-like lustrous appearance.
Claims27
A synthetic polymer filament, comprising:
- a transverse cross-section that includes at least seven contiguous segments in zig-zag configuration, said cross-section having a nominal width, a nominal length and a nominal thickness.
A synthetic polymer filament, comprising:
- a transverse cross-section that includes seven contiguous segments in zig-zag configuration, wherein each segment defines a proximal end and a distal end, wherein a distal end of a first segment is connected to a proximal end of a second segment, wherein a distal end of the second segment is connected to a proximal end of a third segment, wherein a distal end of the third segment is connected to a proximal end of a fourth segment, wherein a distal end of the fourth segment is connected to a proximal end of a fifth segment, wherein a distal end of the fifth segment is connected to a proximal end of a sixth segment, wherein a distal end of the sixth segment is connected to a proximal end of a seventh segment, and wherein a pivot point is defined along the fourth segment and the transverse cross-section of the filament is symmetrical when rotated 180 degrees about said pivot point.
A synthetic polymer filament, comprising:
- a transverse cross-section having multiple segments arranged in a double “W” shape including an upright W-shaped portion sharing a segment with an inverted W-shaped portion.
Dependencies are inferred from the claim text.