Journal of the Textile Machinery Society of Japan

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In order to distinguish the fabric hand by their mechanical properties, the suitable mechanical condition such as deformation range to be measured is important. The KESF system is now becoming one of popular systems to determine fabric mechanical properties relating to fabric hand. The standard measuring conditions of KESF have been developed for medium thick fabrics such as men's suitings. In the case of thinner fabrics classified as women's thin-dress fabrics, the standard conditions have been not necessarily the optimum condition. In this report, the “high sensitivity” conditions for both tensile and compressional testings are proposed for measuring thin-dress fabrics by the KESF system. In the tensile measurement under the high sensitivity condition, the range of the tensile load is only 1/10 of that of the standard condition, and the sensitivity of force and strain detection is magnified by 10 times. In compression, the pressure range is also 1/5 of that of the standard. These small deformation measurements provide more clear distinction among thin-dress fabrics in mechanical properties. The difference of mechanical properties is demonstrated between silk and silk-like polyester fabrics by using the measurement under high sensitivity conditions.

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Although a variety of patents have been applied of the methods of centrifugal pipe forming of cylindrical composite materials, few studies have systematically been made in the winding characteristics. This paper classifies representative methods of fiber winding. Their characteristics and application limits are clarified through analysis and experiments.

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