Spinneret having groups of orifices with various interorifice sp

Details Spinneret having groups of orifices with various interorifice sp Spinneret having groups of orifices with various interorifice sp

1986-07-22

1987-07-14

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

264205, 26421114, 425464, D01D 504

Patent

active

046799982

ABSTRACT:
The conventional spandex spinneret has two rings of equally spaced grouped orifices, each filament being formed by coalescence of the extrudate from the grouped orifices. A spandex spinneret having the holes of the orifices of each group of the outer ring of groups more closely spaced than those of the inner ring of groups has eliminated the power differences between inner and outer threadlines. The closer spacing within each group of the outer ring of groups also increases the spacing between groups, thereby reducing filament migration.

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patent: 4283364 (1981-08-01), Capps et al.
patent: 4318680 (1982-03-01), Pfeiffer et al.
patent: 4340527 (1982-07-01), Martin

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