Abstract
Tensile properties of the friction-twisted Nylon 6 texturized yarns were studied. Four different contact times were chosen and for each contact time six heater temperatures were selected. It was found that for each contact time, with increase in heater temperature, the breaking stress of the yarn had decreased, while the breaking strain of the yarn had increased. The breaking stress of the yarn was found to be a function, not only of the strength of the constituent filaments, but also of the degree of dispersion in the differential crimp, develoled among the filaments. The breaking strain of the yarn was observed to he more influenced by the magnitude of the decrimping extension than by that of the post-crimped extension.
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