Process for producing synthetic filaments

Details Process for producing synthetic filaments Process for producing synthetic filaments

1993-06-07

1994-08-23

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

26421112, 264237, 425 722, B29C 3516, D01D 512

Patent

active

053405170

ABSTRACT:
A process for producing spin-oriented filaments at a draw-off speed of more than 2400 m/min, whereby the filaments extruded from a spinneret are solidified in a cooling shaft solely by the ambient air entrained by the suction effect of the filaments and the cooling shaft having a zone where the walls are air permeable directly beneath the spinneret and has a following zone where the peripheral walls are completely closed.

REFERENCES:
patent: 4496505 (1985-01-01), Tanji et al.
patent: 4529368 (1985-07-01), Makansi
patent: 4712988 (1987-12-01), Broaddus et al.

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