(19)
(11) EP 1 347 085 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.01.2004 Bulletin 2004/03

(43) Date of publication A2:
24.09.2003 Bulletin 2003/39

(21) Application number: 03005279.9

(22) Date of filing: 10.03.2003
(51) International Patent Classification (IPC)7: D01H 4/48, D01H 4/02
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 18.03.2002 JP 2002073711

(71) Applicant: MURATA KIKAI KABUSHIKI KAISHA
Kisshoin, Minami-ku Kyoto-shi 601 (JP)

(72) Inventors:
  • Baba, Kenji
    Kyoto-shi, Kyoto (JP)
  • Shigeyama, Masazumi
    Shiga-gun, Shiga (JP)

(74) Representative: Liedl, Christine et al
c/o Hansmann & Vogeser, Albert-Rosshaupter-Strasse 65
81369 München
81369 München (DE)

   


(54) Vortex spinning method and apparatus


(57) In a spinning method of drafting supplied fibers at a predetermined total draft ratio and then spinning the fibers using a spinning member composed of a nozzle member having a nozzle hole, first, before yarn discharging spinning, the amount of fibers supplied to the spinning member per unit time in a normal spinning state is changed to the amount of fibers supplied per unit time during the yarn discharging spinning, the latter amount being different from the former amount, and after the yarn discharging spinning has ended, the changed amount of fibers supplied is returned to the amount of fibers supplied in the normal spinning state.
A yarn can be reliably generated for yarn discharging spinning. This improves the success rate of joining.






Search report