(19)
(11) EP 0 350 450 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.06.1991 Bulletin 1991/23

(43) Date of publication A2:
10.01.1990 Bulletin 1990/02

(21) Application number: 89810496.3

(22) Date of filing: 30.06.1989
(51) International Patent Classification (IPC)5D01D 5/08, D01D 13/00
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI NL SE

(30) Priority: 06.07.1988 IT 2124388

(71) Applicant: FILTECO S.p.A.
I-21012 Cassano Magnago (Va) (IT)

(72) Inventor:
  • Bert, Paolo
    I-21012 Cassano Magnago (VA) (IT)

(74) Representative: Ritscher, Thomas, Dr. 
RITSCHER & SEIFERT Patentanwälte VSP Kreuzstrasse 82
8032 Zürich
8032 Zürich (CH)


(56) References cited: : 
   
       


    (54) Polychromatic multifilament yarns


    (57) A method of simultaneously producing at least four continuous polychromatic multifilament yarns consisting of at least four different homochromatic filament groups and comprising at least about 60 continuous filaments by melt spinning from a plurality of spinnerets, air quenching and stretching; the spinnerets are part of a single melt spinning unit and are arranged in at least two mutually distanced vertical planes (P¹, P²); not more than three different homochromatic groups of filaments of any yarn are extruded from the spinnerets arr­anged in the same vertical plane.







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