公开(公告)号：EP2834180A1

公开(公告)日：2015-02-11

申请号：EP13772092.6

申请日：2013-03-26

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

Inventor： KOSKOL, Joseph, E.

IPC: B65H54/40 ,  B65H81/08

CPC classification number: B65H54/40 ,  B65H54/385 ,  B65H2701/319

Abstract: A method is provided for winding an elastic yarn into a cylindrical substantially straight-ended yarn package. The method includes feeding an elastic or elastomeric yarn at a substantially constant speed to a tube core to form the yarn package. The yarn package is rotated such that the yarn package with a substantially constant surface speed. The yarn is wound to form layers of helical coils, while providing a helix angle variation of greater than zero up to +/- 80%.