綿繊維の膨潤に伴う断面形状変化に及ぼす水酸化ナトリウムと液体アンモニア処理効果

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タイトル別名
  • Effects of Sodium Hydroxide and Liquid Ammonia Treatments on Shape Changes of Cross-Sectional of Cotton Fibers Due to Swelling.
  • メンセンイ ノ ボウジュン ニ トモナウ ダンメン ケイジョウ ヘンカ ニ オ

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The cotton fabrics treated with formaldehyde vapor show high wash and wear (W & W) properties, but poor tensile strength as compared with the resin treated fabrics. This property is expected to be improved by liquid ammonia pre-treatment before the treatment with formaldehyde vapor.<BR>In this study, from a practical viewpoint of formaldehyde vapor treatment of cotton fabrics, the microscopic and macroscopic strain relaxation along the cross sectional direction of cellulose fibers by the pre-treatment with liquid ammonia, sodium hydroxide and sodium hydroxide/liquid ammonia were examined in terms of crystallinity, crystalline transition (microscopic uniformity index), barium activity number (amorphous content index) and aspect ratio of cross section of a fiber (macroscopic index).<BR>It was found that all examined pre-treatments bring about considerable changes in fine structural properties, but the liquid ammonia pre-treatment is superior to the other two pre-treatments.<BR>This is due to the fact that the liquid ammonia pre-treatment brings about a uniform strain relaxation of cellulose fibers.

収録刊行物

  • 繊維機械学会誌

    繊維機械学会誌 49 (11), T290-T297, 1996

    一般社団法人 日本繊維機械学会

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