Effect of Hot Mercerization on Liquid Ammonia Treated Cottons

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Author(s)

Abstract

Liquid ammonia treated cotton fiber and fabric were mercerized with 20% sodium hydroxide (NaOH) aqueous solution for 5 min at 20°C to 100°C. X-ray diffraction patterns of the cottons were measured with a Rigaku Denki III DMAX. The NH<sub>3</sub>-treated cotton fiber showed almost Cellulose III crystallite pattern. After mercerization, the crystallite phase transformed to Cellulose II<sub>III</sub> and a little Cellulose I<sub>III</sub>. On the other hand, though NH<sub>3</sub>-treated cotton fabric was changed partially to Cellulose III<sub>II</sub>, untreated Cellulose I crystallite was remained not a little. The obtained Cellulose III<sub>I</sub> crystallite of the fabric was completely returned to Cellulose I<sub>III</sub> by mercerization regardless of the temperature, Cellulose II<sub>III</sub> crystallite was not observed despite of a decreasing of the mercerizing temperature. Therefore, it seems that mercerization of the fiber and fabric is considerably different. Apparent dyeing rate of the NH<sub>3</sub>-treated cotton fiber and fabric with C.I. Direct Blue 1 was increased by the hot mercerizing. The rate of the fiber was increased with a decrease of the mercerizing temperature, whereas that of the fabric was no difference among the temperature.

Journal

  • Sen'i Gakkaishi

    Sen'i Gakkaishi 58(5), 185-187, 2002-05-10

    The Society of Fiber Science and Technology, Japan

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Codes

  • NII Article ID (NAID)
    10008574779
  • NII NACSIS-CAT ID (NCID)
    AN00131651
  • Text Lang
    ENG
  • Article Type
    NOT
  • ISSN
    00379875
  • NDL Article ID
    6160467
  • NDL Source Classification
    ZP33(科学技術--繊維工学・工業)
  • NDL Call No.
    Z17-189
  • Data Source
    CJP  NDL  J-STAGE 
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