Relationship between Drapability and Mechanical Properties of Fabrics

TLDR: In this article, the relationship between drapability and mechanical properties of fabrics is analyzed to correlate the drape coefficient with fabric mechanical properties, and it is shown that drap coefficient has high correlation with Harari and Shinayakasa.

Abstract: In order to evaluate formability of silhouette, drape coefficient obtained from circular specimen has been used.In this study, drape cofficient of lady's dress fabrics which are used mainly for one-piece dress or blouse is measured by FRL drape meter.And relationship between drapability and mechanical properties of fabrics is analyzed to correlate the drape coefficient with fabric mechanical property.Using mechanical parameters3√B/W, √2HB/W, 3√G/W and, √2HG/W which are derived from the analysis of bending of a cantilever of fabric having hystersis in bending and shear properties by applying the heavy elastica theory, the equation to described drape coefficient precisely is introduced.Where B, 2HB, W, G and 2 HG are bending rigidity, bending hysteresis, weight per unit area, shear stiffness and shear hysteresis respectively.As a result, it is shown that drape coefficient of lady's dress fabrics is very much influenced by√2HB/W and when the hysteresis in bending and shearing deformation of fabric is greater, the unstability in the drape shape becomes greater.Drape coefficient has high correlation with “HARI”and“SHINAYAKASA”and therefore, it is shown that drape coefficient is described also by primary hand values.