Sen'i Gakkaishi
Online ISSN : 1884-2259
Print ISSN : 0037-9875
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Volume 60, Issue 9
Special Issue on "Pulp and Paper"
Displaying 1-17 of 17 articles from this issue
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Column
Feature
The Society of Fiber S & T, Japan Prize for Excellence in Fiber Research
Reports
Transactions
  • Molecular Motion of an Isolated Single Chain Cellulose Molecule
    Fumio Tanaka, Noriko Fukui
    2004 Volume 60 Issue 9 Pages 261-265
    Published: 2004
    Released on J-STAGE: December 15, 2005
    DOIhttps://doi.org/10.2115/fiber.60.261
    JOURNAL FREE ACCESS
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    The conformational feature of a cellulose single chain molecule (whose DP value was 130) was examined using molecular simulation technique. The final morphological features of the isolated cellulose single chain molecule after full molecular dynamics simulation were found to be in the coiled cluster. Considering with the results in the previous reports for shorter chain molecules, the morphological features of the isolated cellulose chain molecules were classified into three stages by their size of the degree of polymerization (that is, extended chain, folded chain and coiled chain). These results showed that the characteristics of cellulose molecules are largely dependent on their DP values.
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Technical Papers
  • Study on Pilling Test of Cashmere Knitted Fabrics
    Li Long, Zhou Wei
    2004 Volume 60 Issue 9 Pages 266-270
    Published: 2004
    Released on J-STAGE: December 15, 2005
    DOIhttps://doi.org/10.2115/fiber.60.266
    JOURNAL FREE ACCESS
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    The pilling properties of the cashmere knitted fabrics were tested and analyzed by using Pilling Box, Random Tumbling Pilling Tester, and Martindale Tester. Based on the test results and the actual wear, the pilling test method that was more suitable for cashmere knitted fabric was stipulated and the factors influencing this method were analyzed.
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  • Fiber Processing by High Molecular Weight Sericin and its Basic Properties
    Hajime Miyake, Shigekazu Yamashita, Hiroyuki Wakisaka, Yoshiaki Shimiz ...
    2004 Volume 60 Issue 9 Pages 271-275
    Published: 2004
    Released on J-STAGE: December 15, 2005
    DOIhttps://doi.org/10.2115/fiber.60.271
    JOURNAL FREE ACCESS
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    A sericin fixed cotton underwear was prepared by using a highly molecular weight sericin (Mw=38.8×104), and the launderability and moisture properties were investigated. When the cotton underwear was dipped into the 3wt% sericin aqueous solution, a sericin was fixed 2wt% on the fiber surface of the underwear as a thin layer. The sericin remains over 60% after washing of 25 times, indicating that this processing has launderability. Dehygroscopicity of the processing underwear takes longer time to equilibrium moisture regain than the non-processing underwear, implying that moisture-retaining property of the sericin was given. This method is an excellent processing in safety to human body, because of the launderability is obtained without using another treatment or agent.
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Notes
  • Immunogenicity of Hair Proteins Containing Hard Keratins.
    Yusuke Ide, Toshihiro Fujii
    2004 Volume 60 Issue 9 Pages 276-279
    Published: 2004
    Released on J-STAGE: December 15, 2005
    DOIhttps://doi.org/10.2115/fiber.60.276
    JOURNAL FREE ACCESS
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    Hard keratins, which are commonly found in various tissues such as hair, nail, body hair and horn, are a valuable source of proteins for use as bio-materials. In addition, human hair is relatively easy to obtain in large quantities from specific individuals. However, little is known about the immunogenicity of hard keratins and their related proteins. We examined the antibody-producing activity against mouse hair proteins, human hair proteins, and human nail proteins, mainly consisting of hard keratins and matrix proteins using BALB/c mice. The reactivities of sera against mouse hair proteins were about 1% compared with those of sera against human hair- and nail-proteins. Immunoblot analysis also showed the species specificity and different antigenecities for keratins and matrix proteins. These results suggest that human proteins will be biocompatible materials, which will not cause rejection or allergic reactions.
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