Claims
- 1. A method of forming a treated fiber comprising:a) providing a molten polymer; b) delivering said molten polymer to a fiber spinning assembly adapted to form and distribute a stream of said molten polymer; and c) applying a treatment in a liquid state to at least one region on the surface of said molten polymer stream within said fiber spinning assembly, such that a substantial portion of said treatment remains on the surface of the resulting fiber within said treated region.
- 2. The method of claim 1, wherein said treatment has a boiling point of at least about 300° F. (149° C.).
- 3. The method of claim 1, wherein said treatment is applied at a level of about 0.05% to about 3% by weight of the fiber.
- 4. The method of claim 1, wherein said treatment is applied at a level of about 0.1% to about 1.5% by weight of the fiber.
- 5. The method of claim 1, wherein said treatment is applied to the surface of said molten polymer stream at more than one distinct region on the surface of said molten polymer stream.
- 6. The method of claim 1, wherein more than one treatment is applied to the surface of said molten polymer stream at more than one distinct region on the surface of said molten polymer stream.
- 7. The method of claim 6, wherein said treatments are miscible.
- 8. The method of claim 6, wherein said treatments are immiscible.
- 9. An apparatus for forming a treated fiber comprising:a) means for providing a molten polymer; b) means for delivering said molten polymer to a fiber spinning assembly adapted to form and distribute a stream of said molten polymer; and c) means for applying a treatment in a liquid state to at least one region on the surface of said molten polymer stream within said fiber spinning assembly, such that a substantial portion of said treatment remains on the surface of the resulting fiber within said treated region.
Parent Case Info
This application claims priority from U.S. Provisional Patent Application 60/153,825 filed Sep. 14, 1999.
US Referenced Citations (79)
Foreign Referenced Citations (6)
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Date |
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25 13 251 |
Sep 1976 |
DE |
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Entry |
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Provisional Applications (1)
|
Number |
Date |
Country |
|
60/153825 |
Sep 1999 |
US |