Sen'i Gakkaishi
Online ISSN : 1884-2259
Print ISSN : 0037-9875
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Volume 61, Issue 6
Special Issue on "Tissue Engineering"
Displaying 1-13 of 13 articles from this issue
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Column
Feature
Commentation
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Transactions
  • Physical Properties of Cellulosic Fibers Treated under Ultra-High Pressure
    Mitsugu Kimizu, Keisuke Morita, Takashi Yamamoto, Kenji Hisada, Teruo ...
    2005 Volume 61 Issue 6 Pages 147-152
    Published: 2005
    Released on J-STAGE: February 17, 2006
    DOIhttps://doi.org/10.2115/fiber.61.147
    JOURNAL FREE ACCESS
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    It was found out that the cellulosic fibers could be controlled washing shrinkage by treated under the ultra-high pressure, over 100MPa. In this study, we investigated the shrinkage of the cellulosic fabric under high pressure treatment and the simultaneous change in their molecular-level structures and their physical properties. The high-pressure shrinkage for cotton fabric decreased with the treated temperature and the treated pressure, which enhanced the washing shrinkage. On the other hand, the shrinkage of rayon fabric was almost independent of the treated temperature and pressure. The tenacity of treated fabrics decreased after the treatment at high temperature and high pressure. Moreover, the molecular weight of a cellulose molecule in cotton decreased after the high-pressure treatment. The crystalline structure unchanged through the treatment, but the physical properties of the amorphous region was affected by the treatment, which was confirmed from dynamic loss tangent.
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  • Studies on the Change in Distribution of Rosin Sizes Followed by Recycling (I)
    Tomofumi Kogawa, Atsushi Sawatari, Takayuki Okayama, Kiyoharu Fukuda
    2005 Volume 61 Issue 6 Pages 153-158
    Published: 2005
    Released on J-STAGE: February 17, 2006
    DOIhttps://doi.org/10.2115/fiber.61.153
    JOURNAL FREE ACCESS
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    Recycled pulps were treated with a rosin-alum internal sizing system, and handsheets were prepared from the
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