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Investigation Of Indigo Dyeing Using Sodium Borohydride As Reducing Agent

Author

Listed:
  • Banu Yeşim Buyukakinci

    (Engineering Faculty, Istanbul Aydın University, Istanbul, Turkey)

  • Nihal Sokmen

    (Technology Faculty, Marmara University, Istanbul, Turkey)

Abstract

Indigo, one of the oldest dyes, has a very important role for the textile sector. It is primarily used to dye cotton clothes, and blue jeans and over one billion pairs of jeans around the world are dyed blue with indigo. Although Sodium Hydrosulfite (Na2S2O4) is used as a reducing agent in most indigo dyeing processes, it is environmentally unfavorable because of the resultant contaminated toxic wastewater. In addition, the color fastnesses of dyed samples using Na2S2O4 as reducing agent are not good enough.In the present paper sodium borohydride (NaBH4) were used as ecologically safe reduction systems for the indigo dyeing of cotton fabric. After dyeing processes, the color yield and fastnesses according to washing and rubbing were measured, and results were compared.It was found when NaBH4 was used as reducing agent instead of Na2S2O4, the color yield and the fastness properties of the dyed samples improved.

Suggested Citation

  • Banu Yeşim Buyukakinci & Nihal Sokmen, 2017. "Investigation Of Indigo Dyeing Using Sodium Borohydride As Reducing Agent," CBU International Conference Proceedings, ISE Research Institute, vol. 5(0), pages 1061-1063, September.
    • Handle: RePEc:aad:iseicj:v:5:y:2017:i:0:p:1061-1063
    DOI: 10.12955/cbup.v5.1071
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    Keywords

    Indigodyeing; sodium borohydride; reducing agent;
    All these keywords.

    JEL classification:

    • L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology; Plastics
    • L67 - Industrial Organization - - Industry Studies: Manufacturing - - - Other Consumer Nondurables: Clothing, Textiles, Shoes, and Leather Goods; Household Goods; Sports Equipment
    • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling

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