JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES
Online ISSN : 1884-6599
Print ISSN : 0037-2072
ISSN-L : 0037-2072
Volume 43, Issue 5
Displaying 1-6 of 6 articles from this issue
  • [in Japanese]
    2002Volume 43Issue 5 Pages 282-287
    Published: May 25, 2002
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
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  • [in Japanese]
    2002Volume 43Issue 5 Pages 288-293
    Published: May 25, 2002
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
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  • [in Japanese]
    2002Volume 43Issue 5 Pages 294-295
    Published: May 25, 2002
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
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  • [in Japanese]
    2002Volume 43Issue 5 Pages 296-304
    Published: May 25, 2002
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
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  • Part 2: Influences of Stratum Corneum Water Content, Hardness of Skin, Friction Pressure, and Friction Speed on the Frictional Properties
    Satoshi KONDO
    2002Volume 43Issue 5 Pages 305-321
    Published: May 25, 2002
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
    The frictional properties between human skin and fabrics, films and a KES-SE abradant for friction measurement have been measured by using a surface friction tester, an improved version of the KES-SE friction feeling tester previously described in the Part 1. The author has examined the relations between the stratum corneum water content and the hardness of skin. The MIU of fabrics and films have also been measured with the human skin and the KES-SE abradant for friction measurement. In addition, the effect of the human skin and abradants on MMD and stick-slip phenomenonhas also been examined.
    The following results were obtained:
    1) A particular attention has been paid for the difference in individual's MIU. The value of MIU is high with increased stratum corneum water content and low with decreased stratum corneum water content, depending on the season and the application of moisturizer. The test results have clearly shown that main factor on the MMD, the variance of coefficient of friction, is the stick-slip of the human skin.
    2) The mean coefficient of friction, MIU, of the human skin has reversely increased with decreased hardness of the human skin (measured with a Durometer) . Accordingly, in addition to stratum corneum water content, the hardness of the human skin is another factor on the MIU.
    3) The MIU of fabrics determined with the human skin is higher than those of determined with an abradant of KES-SE. A significant difference and a straight regression line have been found between both MIUs. A regression coefficient depends on the stratum corneum water content of individuals according to the seasons. In addition, the MIU of films on the human skin differs from that of fabrics.
    4) The possibility of the stick-slips depends on abradants. The stick-slips tend to occur on fabrics where the construction of a fabric weave is regular and periodic to the frictional direction. The stick-slips also tend to occur on nylon 6 and polyester films.
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  • Kaname MURAI
    2002Volume 43Issue 5 Pages 322-330
    Published: May 25, 2002
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
    A skew deformation of bias fabrics by a dimensional change and a bias directional tensile strain was studied analytically and experimentally.
    The skewness calculated geometrically from a dimensional change agreed well with an experimental skew deformation. A dimensional change of necktie fabrics by a water immersion test had little relationship to their weight and elongation.
    A skew deformation (shear strain) by a bias directional tensile strain was derived from the initial tensile strain in bias 45 degree angle applying an orthogonally aeolotropic model. A skew deformation derived from the initial tensile strain agreed well with that determined by a tensile strain of cylindrically bias fabrics in the range of a small initial bias strain, but did not agreed in the range of a large bias elongation and a large residual strain.
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