Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan)
Online ISSN : 1880-1994
Print ISSN : 0371-0580
ISSN-L : 0371-0580
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Volume 45, Issue 10
Displaying 1-8 of 8 articles from this issue
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  • Numerical Simulation of Fiber Suspension Flow
    Part 2 : Branching Flow
    Kiyoji Nakamura, Kunji Chiba, Noriyasu Mori, Kazunori Yasuda, Hidekazu ...
    1992 Volume 45 Issue 10 Pages T165-T171
    Published: October 25, 1992
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.45.10_T165
    JOURNAL FREE ACCESS
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    Flow patterns and fiber orientation in the two-dimensional branching flow of fiber suspensions are calculated using Dinh-Armstrong model. Fiber orientation is obtained by integration of the Jeffery's equation along a streamline.
    A vortex which is not observed in the Newtonian flow occurs near the corner at the low Reynolds number. The dependence of the vortex height on Reynolds number and a parameter a is discussed. Some fibers are at almost right angles with a streamline. Furthermore, the application of Stress-relief-mechanism is examined for onset of the vortex.
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  • Analysis of Blend Irregularity in Gill Sliver
    Part 1 : Measurement of Blend Irregularity
    Fujio Konda, Masaaki Okamura, Shinya Kurosaki, Akira Watanabe, Kazuhir ...
    1992 Volume 45 Issue 10 Pages T172-T179
    Published: October 25, 1992
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.45.10_T172
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    A new evaluating system of blend irregularity in gill sliver is described. Slivers composed of white and black fibers are delivering from front roller of gill box. By using two light source-receiver pairs, the intensity of the reflected light from sliver and the transmitted light through sliver are measured along sliver axis.
    Variations in the reflected light from sliver contain both blend and thickness irregularity, and the thickness irregularity can be informed from the variations in the transmitted light. The effect of thickness irregularity on the reflected light can be delived from the relation between the reflected light and the sliver weight . The blend irregularity, therefore, can be evaluated by deducting the effect of thickness irregularity and conversion errors form the reflected light.
    This evaluating system was applied to examine the effect of processing stages on the blend irregularity for sliver blending. It was shown quantitatively that the blend irregularity decreased with the processing of gilling .
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  • Study on Qualitative Improvement of Crepe for Summer Wear
    Part 2 : The Relation between Crinkle Shapes and Mechanical Properties
    Hiroki Ishikura, Li Yang, Susumu Kase, Masaru Nakajima, Sigekazu Yamas ...
    1992 Volume 45 Issue 10 Pages T180-T191
    Published: October 25, 1992
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.45.10_T180
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    The former report showed the physical properties of the crepe for summer wear were the higher bending rigidity along the warps and the lower elasticity coefficient when stretched along the wefts, in comparison with those of the fabrics used for similar purposes. The experts of crepe regard those mechanical properties as important in evaluating the quality of crepe.
    Therefore, it is impotant to control the mechanical properties which are deeply related with the crinkle shapes, in the manufacturing process. Under this consideration, the bending rigidity along the warps and the elasticity coefficient of the crepe when stretched along the wefts were calculated, based on the theory of anisotropic body in wavy shape. In this calculation, the thickness of crepe was corrected by the bending rigidity and elasticity coefficient of plain woven fabrics. In the experiment of natural and pique crinkle crepes, the calculated values of the bending rigidity accord comparatively with measured values . As for the elasticity coefficients, the caluculated values were generally higher than the measured ones, though both values showed the same tendencies, And the relations between the shrinkage values and thickness values were propertional . In those circumstances, it is possible that the mechanical properties are controlled in the finishing process with treatment of a change of the crepe width.
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  • [title in Japanese]
    T. Akagi
    1992 Volume 45 Issue 10 Pages P526-P531
    Published: October 25, 1992
    Released on J-STAGE: February 12, 2010
    DOIhttps://doi.org/10.4188/transjtmsj.45.10_P526
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  • [title in Japanese]
    M. Matsudaira
    1992 Volume 45 Issue 10 Pages P532-P538
    Published: October 25, 1992
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.45.10_P532
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    [in Japanese]
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  • [title in Japanese]
    K. Tomisawa
    1992 Volume 45 Issue 10 Pages P539-P544
    Published: October 25, 1992
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.45.10_P539
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  • [title in Japanese]
    M. Tsukigi
    1992 Volume 45 Issue 10 Pages P545-P550
    Published: October 25, 1992
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.45.10_P545
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  • [title in Japanese]
    S. Sekiya
    1992 Volume 45 Issue 10 Pages P551-P556
    Published: October 25, 1992
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.45.10_P551
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