Color in Cloth Dyed with Natural Indigo and Synthetic Indigo

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Author(s)

Abstract

Color reflectance from the cloth dyed with natural indigo was quantitatively compared with that from the cloth dyed with synthetic indigo by the spectrophotometric method, and the results were analyzed by a CIE-LAB color system. The cause of the color difference between the clothes dyed with natural and synthetic indigo was attributed to the mode of dye dispersion in fiber resulted from the aggregation of dye molecules during the reduction process. The results are summarized as follows: 1) The color produced by natural indigo is bluer and brighter than color produced by synthetic indigo reduced by sodium hydrosulfite. 2) The color produced by syn-thetic indigo using zinc powder is more similar to the color of natural indigo than the color of synthetic indigo prepared with sodium hydrosulfite. 3) The chroma and hue of the cloth dyed with natural indigo are higher than the respective values of the cloth dyed with synthetic indigo reduced by sodium hydrosulfite when the clothes are dyed repeatedly. 4) The diffusion coefficient of synthetic indigo reduced by sodium hydrosulfite is higher than that of natural indigo, where the diffusion coefficient of synthetic indigo reduced by zinc powder is similar to that of natural indigo.

Journal

  • Sen'i Gakkaishi

    Sen'i Gakkaishi 58(4), 122-128, 2002-04-10

    The Society of Fiber Science and Technology, Japan

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  • Indigo  [in Japanese]

    USHIDA Satoshi

    Fiber 58(12), 325-328, 2002-12-10

    References (25)

Codes

  • NII Article ID (NAID)
    10008010070
  • NII NACSIS-CAT ID (NCID)
    AN00131651
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    00379875
  • NDL Article ID
    6133665
  • NDL Source Classification
    ZP33(科学技術--繊維工学・工業)
  • NDL Call No.
    Z17-189
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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