| 摘要 |
PURPOSE:To reduce the end breakage times and the abnormal tension occurring times considerably when releasing with speed higher than 600m/min. by providing a bobbin package having such potential tendency as the false twist yarn will roll to the opposite side from the advancing direction through its torque. CONSTITUTION:When performing Z-release of Z false twist finished yarn 1a having Z torque, said yarn 1a will roll through Z torque on the surface of bobbin package 1 in the arrow direction P or in the opposite direction from the advancing direction of said yarn 1a. While when releasing S false twist finished yarn 3a having S torque, said yarn 3a will roll through S torque on the surface of bobbin package 3 in the arrow direction P or in the opposite direction from the advancing direction of said yarn 3a. Consequently, when the false twist yarns 1a, 3a to be released will slide against the lug sections 1c, 3c at the releasing side of bobbin packages 1, 3, mutual interference between the lug section and the false twist yarn is hard to occur resulting in reduction of resistance against the false twist yarn at the lug section. |
