公开(公告)号：US20040195426A1

公开(公告)日：2004-10-07

申请号：US10408196

申请日：2003-04-07

申请人： E.I. DUPONT DE NEMOURS AND COMPANY, INC.

发明人： Robert Lock

IPC分类号： B65H069/00

CPC分类号： B65H49/02 ,  B65H49/12 ,  B65H55/043 ,  B65H2701/319

摘要： A method for unwinding tacky elastomeric yarn from one or multiple coiled yarn packages includes the steps of (a) removing tubular cores from each yarn package to expose the beginning end of the yarn strand at the inner diameter of the yarn package; (b) forming a terminal end of the yarn strand at a position along the length of the strand between the inner diameter and outer diameter of the yarn package; (c) when unwinding multiple coiled yarn packages, attaching the terminal end of the first yarn package to a beginning end of a next yarn package; and (d) unwinding by pulling the beginning end of the first yarn package in a generally axial direction to remove yarn from the inside of the package from the inner diameter toward the outer diameter. This method provides inside-out unwinding of a single package, or continuous unwinding of multiple packages of elastomeric yarn at a reduced overall yarn tension, and minimizes unwinding tension spikes.

摘要翻译： 一种用于从一个或多个卷绕纱线卷装退卷的弹性纱线的方法包括以下步骤：（a）从每个纱线卷装中去除管状芯，以在纱线卷装的内径处露出纱线的起始端; （b）在纱线卷装的内径和外径之间的股线长度的位置处形成纱线的末端; （c）当展开多个卷取纱线卷装时，将第一纱线卷装的末端连接到下一个纱线卷装的起始端; 以及（d）通过沿大致轴向方向拉动第一纱线卷装的起始端以从包装的内部从内径向外径去除纱线来展开。 该方法提供单个包装的内向外展开，或者在减少的总纱线张力下连续展开多个弹性纱线包装，并且使展开张力尖峰最小化。