公开(公告)号：US11305962B2

公开(公告)日：2022-04-19

申请号：US16624566

申请日：2018-06-29

申请人： Toray Opelontex Co., Ltd.

发明人： Hiroki Ozasa ,  Hideki Nakanishi ,  Kayoko Nakajima ,  Koutarou Mizuno ,  Yutaka Sato

IPC分类号： B65H75/28 ,  B65H55/00

摘要： Elastic yarn wound body packages able to simplify processing of a tail yarn of an elastic yarn when manufacturing a fabric, or the like, continuously by simultaneous vertical take-up unwinding of a multistage elastic yarn through providing elastic yarn wound body packages on a multistage stand are provided. The elastic yarn wound body package comprises a paper tube and an elastic yarn wound body, wherein: the paper tube has a groove in the circumferential direction, perpendicular to the paper tube axis, between an end portion of the elastic yarn wound body and an end portion of the paper tube; a tail yarn of the elastic yarn wound body is wound into the groove; and a wire-shaped object or tape-shaped object that crosses at least a portion of the yarn bundle of the tail yarn is held thereby. Also provided are paper tubes comprising, in the vicinity of at least one end, a tail thread wrapping groove having parallel edges along a circumferential direction perpendicular to the axis of the paper tube, the paper tube comprising a recession, the maximum width of which is greater than the width of the tail thread wrapping groove and the deepest part of which is deeper than the tail thread wrapping groove, over the tail thread wrapping groove or an extension of the tail thread wrapping groove and elastic thread reel packages comprising these paper tubes.