Abstract

A tester (Fig. 1.) was designed to measure the torque and tension generated when the slubbing is twisted under a constant length or constant tension.Using this tester, the mechanism of false twisting system, which controls drafting by frictional twisting between twister tube and slubbing, was investigated. Some results are shown in Fig. 2_??_Fig. 6.The twist turns which are inserted is decided by the balance between the moment of false twister and the torque of sliver. These relation were analyzed theoretically in equations (4)_??_(7). The theory is applied to the results of the experiment on thread angle and sliver thickness in the preceding pa_??_er (V).

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