JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES
Online ISSN : 1884-6599
Print ISSN : 0037-2072
ISSN-L : 0037-2072
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  • Teruko TAMURA, EunJin LEE, Fujie HAISHIMA, Tomohiko HANANOUCHI, Takafu ...
    2019 Volume 60 Issue 8 Pages 639-648
    Published: August 25, 2019
    Released: August 25, 2019
    JOURNALS FREE ACCESS

    The object of this study was to establish the method which evaluates dynamic 3D drape behavior of fabrics visually and quantitatively. The landmark on the edge of the sample fabric which was on the turntable rotating at a speed of 70, 140 and 210 rpm was photographed with 3 high speed cameras continuously and the data were analyzed by 3D motion analysis method. 3D dynamic drape behavior of the fabric was expressed in the fluctuation graph of the landmark and the characteristics were explained quantitatively by means of the level, amplitude and frequency of the fluctuation. Seven fabrics tested were divided into two groups, silks group of different construction and satin group consisted of different kinds of fiber in order to examine the effect of fiber and construction on the drape behavior. As the results; 1) each fabric showed different unique fluctuation graph; 2) the level of the fluctuation increased with rotation speed; 3) amplitude of the fluctuation decreased horizontally but increased perpendicularly with the speed; 4) ANOVA test showed there were significant differences of fluctuation characteristics among different silk fabrics, and different satin fabrics; and 5) this method was useful as a new evaluation system of the dynamic drape behavior of fabrics.

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  • Yasunobu TOCHIO
    2019 Volume 60 Issue 8 Pages 649-656
    Published: August 25, 2019
    Released: August 25, 2019
    JOURNALS FREE ACCESS

    This paper presents the two theoretical issues related to the Japanese-style employment. The theoretical issues are (1) skill concept and (2) Japanese uniqueness. In this paper, the issues related to (1) skill concept has focused on the relationship among skill, technique, knowledge and technology. The issues related to (2) Japanese uniqueness has focused on the subject of Japanese double structure and the industrial policy.

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