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 30, Issue 6
Displaying 1-7 of 7 articles from this issue
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  • Erratum
    1977 Volume 30 Issue 6 Pages P283
    Published: 1977
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.30.6_P283
    JOURNAL FREE ACCESS
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    [in Japanese]
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  • The Flow of a Viscoelastic Liquid into a Slit at Low Reynolds Numbers
    Part 3 : Stress-Birefringent Patterns
    Kiyoji Nakamura, Koichi Ishizaki, Yasuhiro Yamamoto, Takehiko Amazutsu ...
    1977 Volume 30 Issue 6 Pages T104-T111
    Published: June 25, 1977
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.30.6_T104
    JOURNAL FREE ACCESS
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    The flow of a low density polyethylene from reservoirs into slits at low Reynolds numbers was visually studied and circulating secondary flows were observed in the reservoir. In this paper, stress patterns in the reservoir were measured by the technique of flow birefringence.
    The results of this study are as follows:
    Shear stress is zero on the center line of parallel plates and in some part of circulating secondary flow regions. Between these zero shear stress zones, a constant shear stress line forms a loop towards the upstream of the slit. Normal stress difference is zero on zero isoclinic fringe of the center line of parallel plates and on a 45° principal stress direction from the axis perpendicular to main flow, and the absolute stress value is larger on the central side.
    Even if a reservoir wall angle is changed, patterns of shear stress and of normal stress difference hardly change.
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  • Effect of Curvature of Friction Body on Frictional Properties of Waxed Yarns
    Toshiro Sasaki, Katsuaki Kuroda
    1977 Volume 30 Issue 6 Pages T112-T118
    Published: June 25, 1977
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.30.6_T112
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    The concept has been investigated of the most desirable quantity of wax deposited on yarns and the lublication mechanism has been studied in the waxing technology.
    The results obtained from the study are summarized below : (1) It was confirmed that there was the most desirable quantity of wax in the waxing to improve the yarn knittability.
    (2) It was found that the most desirable wax quantity was affected by the curvature of the cylindrical friction body. In other words, the value of the most desirable wax quantity which gave the minimum resistance to friction increased and became indistinct with the increasing the curvature.
    (3) The above findings appeared to be quantitatively explained by the following lubrication mechanism. The wax layer formed on the friction body by passing the waxed yarns has two effects which are contradictory each other on the frictional resistance. The net frictional resistance induced by the above effects gives the most desirable quantity of wax.
    (4) Some experimental data obtained by the investigation showed that the conclusion might be reasonable.
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  • Air Jet Loom, Past and Present
    T. Ishida
    1977 Volume 30 Issue 6 Pages P236-P244
    Published: June 25, 1977
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.30.6_P236
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  • Automated Operations in Textile Industry
    S. Kawabata
    1977 Volume 30 Issue 6 Pages P245-P254
    Published: June 25, 1977
    Released on J-STAGE: October 27, 2009
    DOIhttps://doi.org/10.4188/transjtmsj.30.6_P245
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  • Mechanical Behaviours of Flexible Plastic Sheets Reinforced with Plain Woven Fabrics
    Akira Horikawa, Masaya Sakabe, Eiichi Kobinata
    1977 Volume 30 Issue 6 Pages P255-P264
    Published: June 25, 1977
    Released on J-STAGE: February 01, 2010
    DOIhttps://doi.org/10.4188/transjtmsj.30.6_P255
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    The mechanical behaviours have been investigated of flexible plastic sheets reinforced with plain woven fabrics.
    The relationship between the expermental results and the theoretical values have been analyzed by using the law of composite and the elastic theory.
    The results are as follows :
    1) The strength of flexible plastic sheet is approximately equal to the value which was calculated by the strength of the fibers and the matrix using the law of composite.
    2) Flexible plastic sheet has the elastic properties and depends on the structure of plain woven fabrics. In this paper, the elastic theory of the fiber-reinforced composite material can be applied to the plastic sheets. The theoretical values thus obtained agree well with the experimental results.
    3) If a total denier per unit width is equal, little difference is found in the tensile strength of flexible plastic sheet.
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  • Dimensional Change of Wool Fabrics by Steam Pressing
    K. Shibata, M. Hori
    1977 Volume 30 Issue 6 Pages P265-P274
    Published: June 25, 1977
    Released on J-STAGE: February 12, 2010
    DOIhttps://doi.org/10.4188/transjtmsj.30.6_P265
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