Abstract: After doffing a full size yarn package from a bobbin holder of a takeup apparatus, a fresh bobbin is mounted thereon. A supplying thread via a thread guide is then sucked into an aspirator disposed adjacent to the takeup unit. Next, a portion of the thread upstream from the aspirator is caught by a cut-out groove at a free end of the bobbin holder and a helical winding is formed from the groove to a position on the fresh bobbin where the distance from the thread guide is minimum, and an initial bunch winding is formed at this position. Thereafter, the helical winding is eliminated by forming an additional bunch winding from a part thereof while the remaining part is sucked into the aspirator.The above method is applied to a takeup unit with a bobbin holder capable of mounting a plurality of bobbins so as to simultaneously form yarn packages from continuously supplied supplying threads.