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For asymmetric ply yarns or multi-ply constructions cross-wound packages are still produced in a two-level twisting process according to the two-for-one principle. On the pre-twist machine TC-S ply, the individual threads are twisted separately and wound onto a doubling bobbin. Here, up to 6 individual threads can be assembled and wound onto the take-up. The cylindrical cross-wound package is then fed to the Allma TechnoCorder TC-S and the assembled ply yarn is final-twisted in a special spindle. |