Rebuilding guide axis, regulating operating method of folding and double twisting tender, controlling twist unevenness of front process can control compound yarn entanglement defect of double twister.

• 通过改造导纱轴、规范并线挡车工和倍捻挡车工的操作方法、控制好前工序的捻度不匀率,可有效控制倍捻机上股线扭结疵点。