A simple theoretical model is proposed for studying the properties of blended fibrous structures. The model is verified using experimental results from blended yams. The effect on a blended system's properties due to interactions of the different constituents in the blended structure is analyzed, and the parameters influencing these interactions are revealed and discussed. A systematic dimensionless analysis is carried out, and the applicability of the model to predict the relationship between the optimal twist factor and the blend ratio for a blended yam is also examined.
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