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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Volume 22, Issue 5
Displaying 1-8 of 8 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1981 Volume 22 Issue 5 Pages 163-167
    Published: May 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.163
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1981 Volume 22 Issue 5 Pages 168-175
    Published: May 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.168
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1981 Volume 22 Issue 5 Pages 176-179
    Published: May 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.176
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1981 Volume 22 Issue 5 Pages 180-185
    Published: May 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.180
    JOURNAL FREE ACCESS
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  • ERRATUM
    1981 Volume 22 Issue 5 Pages 185
    Published: 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.5_185
    JOURNAL FREE ACCESS
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  • Washing Behavior of Liquid Flow Part 2: Liquid Flow Washing of Cotton Fabrics Artificially Soiled with Carbon Black
    Takashi Hiramatsu, Akiko Kotani
    1981 Volume 22 Issue 5 Pages 186-190
    Published: May 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.186
    JOURNAL FREE ACCESS
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    The washing efficiency evaluated by the reflectance measurment is almost constant irrespective of the washing time and the velocity of liquid flow, if the liquid flow actions to the fabrics are the same in their energy which is calculated by the equation shown in the previous paper. The higher the energy, the higher the washing efficiency which is almost expressed as a linear equation of logarithms of the energy. The experiment with only the liquid fluid action has shown that the influence of the liquid temperature and surfactant concentration on the washing efficiency is same as that with both the liquid fluid and other mechanical actions.
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  • Study on the Seam Strength
    Prediction of the Tensile Strength of a Curved Seam
    Midori Matsuo, Ichizo Aoki
    1981 Volume 22 Issue 5 Pages 191-196
    Published: May 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.191
    JOURNAL FREE ACCESS
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    On the assumption that a curved seam is composed of a set of loops of a sewing thread aggregated at various angles to the tensile direction, the tensile strength of a curved seam sewn with a sewing machine has been predicted by two methods. The following results have been obtained.
    (1) Taking into account of a better fitness of experimental data for predicted ones and a wider adaptability of experimental data for the predicting equation, the predicting method using the loop-strength and elongation of a sewing thread is more suitable than the method using the strength of a straight line seam.
    (2) From above results, the strength of a curved seam (T) can be predicted by:
    for cotton threads; T=0.67 NΣi=1F⋅cos θbi
    for polyester filament threads, 3≤stitch density <7; T= 0.70 NΣi=1F⋅cos θbi
    7≤stitch density; T= 0.65 NΣi=1F⋅cos θbi
    where, N: number of stitches, F: loop strength of a sewing thread, and θbi: angle at break.
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  • Relation Between Dielectric Constant and Solubilization of Polar Substances in Various Chlorinated Solvents
    Kenji Ohtsuka, Ken Kazama
    1981 Volume 22 Issue 5 Pages 197-201
    Published: May 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.197
    JOURNAL FREE ACCESS
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    The solubilization of water in various surfactant solutions of chlorinated solvent were investigated in relation to the dielectric constant (ε) of each solvent. As an example of the application of solubilization of polar substances, contamination tests were carried out on cotton and acrylic fabrics by acid dye (Azure Blue V) .
    1) A value of ε was unaffected by the addition of surfactants or water into the solvent, while the conductivity (G) increased by the addition of sodium di-2-ethylhexyl sulfosuccinate (DOS), especially in the solvent of high ε.
    2) The higher a value of ε, the greater the solubility of water in each solvent. DOS had a high ability to solubilize water and the ability showed minimum at ε ≈ 5, whereas polyoxyethylene monostearate (EOS) showed little water solubilizing effect.
    3) The degree of contamination (DOC) by Azure Blue V depended on ε of each solvent and it showed minimum at ε ≈ 7. DOS had a lowering effect of DOC and the effect became more remarkable in the solvent of high ε.
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