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Some new parameters of dynamic drapability, such as revolving drape increase coefficient (Dr), revolving drape coefficient at 200 rpm (D200), and dynamic drape coefficient at swinging motion (Dd), have been defined using a device of dynamic drape tester and the regression equations are derived from mechanical parameters of fabrics obtained from KES system. These equations have been applied to polyester fabrics used for women's fine dress materials and the effects of weave density, yarn twist and yarn count on these parameters studied. It is observed that Dr and Dd have a maximum value at the optimum weave density. These values increase with the increase in yarn twist in the case of Dechine fabrics. These values decrease in the case of taffeta fabrics, and increase in the case of georgette with yarn count. Changes in D200 with weave density, yarn twist and yarn count are found to be little for all the fabrics. Node number decreases and conventional static drape coefficient (Ds) increases with weave density. [ABSTRACT FROM AUTHOR]

In this study, mechanical properties and hand values are predicted from the parameters of weave structures. To promote the design of woven fabrics, we can define the crossing-over firmness factor (CFF) and the floating yarn factor (FYF) as the parameters of the weave structures for predicting mechanical properties and hand values. Both the CFF and FYF are related to some mechanical parameters and primary hand. Multiple regression equations of mechanical parameters and hand values are derived from those parameters of weave structures, and the predicted values almost exactly agree with the measured values from the KES-FB system. [ABSTRACT FROM AUTHOR]

Presents a study which examined the features of conventional static and dynamic drape coefficients of woven silk fabrics. Calculation static and dynamic drape coefficients; Results; Discussion.

Basic mechanical properties such as tensile, bending, shearing, compressional, and surface properties of each classified silk weave were measured by the KES-FB system, and fabric handle was obtained by the objective-evaluation method developed by Kawabata and Niwa. These values were examined and compared with those of typical thin dress fabrics. The discriminant analysis was used to distinguish each silk group clearly by primary hand values. The main features of fabric handle of each classified silk weave are as follows. Silk Habutae has high KOSHI and KISHIMI and low SHARI. Silk Dechine shows high SHINAYAKASA and low HARI. Silk Georgette has good SHINAYAKASA, but poor HARI and FUKURAML Silk Fujiginu has a slightly high KISHIMI and a slightly low SHARI. High KOSHI and HARI with low SHINAYAKASA are distinctive features of silk Chirimen. Silk Shantung has higher KOSHI and HARI and lower SHINAYAKASA. [ABSTRACT FROM AUTHOR]