Claims
- 1. A melt spun side-by-side bicomponent fiber, comprising:a first component having a first viscosity at a melt-spinning temperature; and a second component arranged side-by-side with the first component and having a second viscosity higher than the first viscosity at the melt-spinning temperature; wherein a transverse cross-section of the fiber includes an area of the first component and an area of the second component, a perimeter of the transverse cross-section comprising a perimeter of the first component and a perimeter of the second component, and wherein the ratio of the perimeter of the first component to the area of the first component is greater than the ratio of the perimeter of the second component to the area of the second component.
- 2. The fiber of claim 1, wherein at least one of said first and second components is crimped.
- 3. The fiber of claim 1, wherein said fiber has a non-round transverse cross-sectional shape.
- 4. The fiber of claim 3, wherein said fiber has a substantially triangular transverse cross-sectional shape.
- 5. The fiber of claim 3, wherein said fiber has a substantially trilobal transverse cross-sectional shape, including first, second and third lobes.
- 6. The fiber of claim 3, wherein said fiber has a substantially teardrop transverse cross-sectional shape having a narrow end and a wide end.
- 7. The fiber of claim 3, wherein the transverse cross-sectional shape of said fiber includes a bulbous portion and an elongated stem portion extending from the bulbous portion.
- 8. A yarn comprising a plurality of the fibers of claim 1.
- 9. A fabric comprising a plurality of the fibers of claim 1.
CROSS REFERENCE TO RELATED APPLICATION
This application claims priority from U.S. Provisional Patent Application Ser. No. 60/134,263, entitled “Spinneret Hole Configuration for Preventing Bending of Bi-Component Extrudate At Orifice,” filed May 14, 1999. The disclosure of this provisional patent application is incorporated herein by reference in its entirety.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/US00/13167 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO00/70131 |
11/23/2000 |
WO |
A |
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3718534 |
Okamoto et al. |
Feb 1973 |
A |
5093061 |
Bromley et al. |
Mar 1992 |
A |
5162074 |
Hills |
Nov 1992 |
A |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/134263 |
May 1999 |
US |