High speed spinning process

Details High speed spinning process High speed spinning process

1991-05-06

1993-01-26

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421115, 26421117, D01D 512, D01F 660, D01F 662

Patent

active

051820684

ABSTRACT:
A process for the melt spinning of a fibre forming polymer into a filamentary yarn in which the spinning threadline is passed through a heated shroud located immediately below the spinneret, the threadline is cooled by an air current and then taken up at a speed of 5 km/min or more the improvement being that the temperature of the environment within the shroud, and in consequence the temperature of the filaments themselves, is progressively reduced, before the filaments in the threadline are cooled by the air current.

REFERENCES:
patent: 3361859 (1968-01-01), Cenzato
patent: 4045534 (1977-08-01), Fisher et al.
patent: 4134882 (1979-01-01), Frankforet
patent: 4491657 (1985-01-01), Saito et al.
patent: 4691003 (1987-09-01), Sze
patent: 5034182 (1991-07-01), Sze et al.
Patent Abstracts of Japan, vol. 14, No. 115 (C-696) [4058], Polyester Yarn and Production thereof *abstract*.
Patent Abstracts of Japan, vol. 12, No. 132, Apr. 22, 1988, (C-490) [2979], Spinning Block For Melt Spinning, *abstract*.
Patent Abstracts of Japan, vol. 13, No. 208, May 16, 1989, (C-596) [3556], Method For Melt Spinning Thermoplastic Polymer *abstract*.
Patent Abstracts of Japan, vol. 12, No. 421, Nov. 8, 1988, (C-541) [3268], High-Speed Spinning of Polyester Fiber *abstract*.

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