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 65, Issue 2
Displaying 1-10 of 10 articles from this issue
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  • [title in Japanese]
    Natsuko KOHARA
    2024 Volume 65 Issue 2 Pages 112-118
    Published: February 27, 2024
    Released on J-STAGE: February 27, 2024
    DOIhttps://doi.org/10.11419/senshoshi.65.2_112
    JOURNAL FREE ACCESS
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    With the ultimate goal of recycling waste wool fibers as deodorizing materials by chemical treatment, the author partially hydrolyzed wool fibers with hydrochloric acid to improve the deodorizing performance for trans-2-nonenal. The deodorizability was improved by partial hydrolysis, and was remarkably enhanced by the saturating the wool fibers with water. There was a high correlation between deodorizability and the amount of primary amino groups in the wool fibers. The deodorizing performance of wool partially hydrolyzed with 6mol/l HCl did not decrease even after 20 repetitions of the deodorizing performance test. Quantitative analysis results showed that nonenal decreased in the deodorization test and adsorbed onto the wool fibers without undergoing any chemical changes. Adsorption of nonenal onto wool fibers was presumably due to electrostatic attraction between the fiber substrate and nonenal, in addition to physical adsorption.

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  • Effects of Material and Knitted Structure of Summer Socks on Heat and Moisture Transfer Properties
    Nanami TAMAISHI, Riho SAKASHITA, Reika MORIMOTO, Harumi MOROOKA, Tsune ...
    2024 Volume 65 Issue 2 Pages 119-127
    Published: February 27, 2024
    Released on J-STAGE: February 27, 2024
    DOIhttps://doi.org/10.11419/senshoshi.65.2_119
    JOURNAL FREE ACCESS
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    Socks are necessary to protect the feet from friction caused by shoes and shock during walking. In this study, the effects of materials and knitted structures of socks on the heat and moisture transfer properties were investigated using 12 commercially available socks and 12 prototype socks. Forwardbackward stepwise multiple regression analysis was performed for investigating the dry heat loss and total heat loss accompanied by water vapor transfer as objective variables and thickness, mass, porosity, and moisture regain as explanatory variables. Thickness was extracted as the factor with the highest contribution to the objective variables. The contribution of moisture regain and porosity was also recognized. The predicted values determined by use of the obtained multiple regression equation were highly accurate. However, it was suggested that there was a limitation to how thin the socks could be when considering the pressure impact resistance during walking. Thus, we designed the prototype socks with a high mixing ratio of hydrophilic fibers and mesh knitting, and verified its applicability.

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