(19)
(11) EP 0 182 615 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.03.1988 Bulletin 1988/13

(43) Date of publication A2:
28.05.1986 Bulletin 1986/22

(21) Application number: 85308296

(22) Date of filing: 14.11.1985
(84) Designated Contracting States:
DE GB IT NL

(30) Priority: 15.11.1984 US 671920

(71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
 ()

(72) Inventors:
  • Dreibelbis, Richard Lewis
     ()
  • Hunt, Oliver Larry
     ()

   


(54) Spinneret


(57) 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 or 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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