公开(公告)号：EP1299581B1

公开(公告)日：2008-07-16

申请号：EP01950881.1

申请日：2001-07-05

Applicant: INVISTA Technologies S.à.r.l.

Inventor： LANCASTER, Peter Michael

IPC: D01D5/253 ,  D01F6/60

CPC classification number: D01F6/60 ,  D01D5/253

Abstract: The invention provides a profiled polymer filament having an open hollow cross-sectional shape normal to the longitudinal axis of the filament, wherein the cross-section is dimensioned to prevent the filament from interlocking with a second filament of the same cross-section. The invention also provides methods of manufacture of such filaments by melt spinning a polyamide, and spinnerets suitable for use in melt spinning such filaments.