Fibrillation Behavior of Silk Fibers from Japanese-oak-silkworm, Antheraea yamamai.

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  • Kawahara Yutaka
    Division of Advanced Fibro-Science, Graduate School, Kyoto Institute of Technology
  • Tsuji Masaki
    Laboratory of Polymer Condensed States, Division of States and Structures III, Institute for Chemical Research, Kyoto University, Uji
  • Hananouchi Tomohiko
    Department of Textile System Engineering, Faculty of Textile Science & Technology, Shinshu University
  • Tamura Hidetoshi
    Division of Advanced Fibro-Science, Graduate School, Kyoto Institute of Technology
  • Kimura Teruo
    Division of Advanced Fibro-Science, Graduate School, Kyoto Institute of Technology
  • Kohjiya Shinzo
    Laboratory of Polymer Condensed States, Division of States and Structures III, Institute for Chemical Research, Kyoto University, Uji

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Silk fibers from Japanese-oak-silkworm, Antheraea yamamai, were fibrillated via Japanese handmade-paper making method, and laboratory handsheets were made. Scanning electron microscopy showed that the occurrence of fibrillation followed by tangling between the fibrils is important for the formation of sheets. The morphologies of the fibrils obtained through the fibrillation were investigated by transmission electron microscopy. Two types of fibrils, i.e. the ribbon-like ones and the random-coil-like ones were observed. The wide-angle X-ray diffraction measurement for these fibrils showed an amorphous scattering curve. However, no difference was observed between the infrared spectra for these fibrils and the control fibroin. It seems that the lateral packing of pleated β sheet structure of fibroin of Japanese-oak-silk is loosened slightly when the fibrillation proceeds to a certain degree.

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  • 繊維学会誌

    繊維学会誌 56 (9), 462-465, 2000

    社団法人 繊維学会

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