Claims
- 1. A process for producing a nylon 66 fiber with improved dyeability consisting essentially of extruding a melt of nylon 66 from a nozzle, passing the extruded filaments through a heating zone provided at the surface of the nozzle and having a length of about 5 cm to about 100 cm and a temperature of about 150.degree. C. to about 260.degree. C., applying a suction to the filaments with an aspirator located at a distance of about 5 cm to about 60 cm below the heating zone, and then winding at a winding speed of at least about 6,000 m/min.
- 2. A process according to claim 1, wherein the aspirator has a length of about 5 cm to about 50 cm.
Priority Claims (2)
Number |
Date |
Country |
Kind |
56-26129 |
Feb 1981 |
JPX |
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56-37242 |
Mar 1981 |
JPX |
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Parent Case Info
This application is a continuation of Ser. No. 746,750 filed 6/20/85, abandoned, which was a division of Ser. No. 651,646 filed 9/18/84 now U.S. Pat. No. 4,542,063 which is continuation of Ser. No. 350,417 filed 2/19/82, now abandoned.
US Referenced Citations (7)
Divisions (1)
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Number |
Date |
Country |
Parent |
651646 |
Sep 1984 |
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Continuations (2)
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Number |
Date |
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Parent |
746750 |
Jun 1985 |
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Parent |
350417 |
Feb 1982 |
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