Method for the production of polypropylene yarn

Details Method for the production of polypropylene yarn Method for the production of polypropylene yarn

1991-06-20

1994-01-11

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421112, 2642356, D01D 700, D02J 122, D02J 1300

Patent

active

052778592

ABSTRACT:
A process and apparatus for producing multi filament yarn from polypropylene polymer. The process includes the steps of spinning an undrawn yarn using a spinnerette, and winding the undrawn yarn on a bobbin. Subsequently the undrawn yarn is unwound so that no twist is imparted to the yarn and the yarn is then drawn between godet rollers through a convection oven, the drawn yarn being wound on a bobbin.

REFERENCES:
patent: 3106442 (1963-10-01), Compostella et al.
patent: 4911165 (1990-03-01), Lennard et al.

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