This paper introduces the shape coefficient of fancy yarn as a tool for classifying twisted multiplied fancy yarns. Mathematical functions have been used to describe yarn tensions in the twist zone as a basis for analysis of their variability pattern. On the basis of conducted analyses, characteristic values of the shape coefficient have been identified, according to which twisted multiplied fancy yarns can be classified in an objective way.
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Petrulis D., Petrulytė S., Comparison of Different Theoretical Models of Fancy Yarns, Materials Science (Medžiagotyra), 10(1), 89-92, (2004).
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Grabowska K.E. , Mathematical Modelling of Tensile Properties of Fancy Loop Yarns. Theoretical Part I, Textile Res. J., in press.
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