In this paper the performance of the false twist texturing process is investigated. The analysis deals with false twisting systems employing belt aggregates. Theoretical analyses are compared with experimental values run at texturing speeds in the range of 800 m/min. The application of belt-twisting as an aggregate is analyzed and its feasibility as an efficient twisting element is discussed. The analysis shows the changes in yarn tension and twist level as a function of the B/Y ratios (belt to yarn speeds) and belt angle. Experimental results were found to agree fairly well with the predicted analysis.

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