发明名称 Spinneret for dry spinning spandex yarns
摘要 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.
申请公布号 US5002474(A) 申请公布日期 1991.03.26
申请号 US19890445958 申请日期 1989.11.28
申请人 E. I. DU PONT DE NEMOURS AND COMPANY 发明人 HOEKSTRA, ANNE
分类号 D01D4/02 主分类号 D01D4/02
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