Spinneret for dry spinning spandex yarns

Details Spinneret for dry spinning spandex yarns Spinneret for dry spinning spandex yarns

1989-11-28

1991-03-26

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

264205, 425464, B29C 4712

Patent

active

050024744

ABSTRACT:
An improved spinneret for use in dry spinning spandex filaments has coaxial inner and outer rings of grouped orifices. The number of grouped orifices in each ring is equal. Each group of orifices is radially equally spaced from the next preceding or next succeeding orifice group. The spinneret provides spandex yarns with improved decitex uniformity.

REFERENCES:
patent: 1441642 (1923-01-01), Tofanelli
patent: 1983330 (1934-12-01), Welch
patent: 2051861 (1936-08-01), Jones
patent: 2703433 (1955-03-01), Holzmann
patent: 3094374 (1963-06-01), Smith
patent: 3245112 (1966-04-01), Williamson
patent: 3428711 (1969-02-01), Hunt
patent: 3454986 (1969-07-01), Fassbender
patent: 4104015 (1978-08-01), Meyer
patent: 4679998 (1987-07-01), Dreibelbis et al.

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