Effect of various transition metal ions on mordanting stage of yak wool bleaching process

Authors

  • Dashjargal Arildii Department of Chemistry, School of Arts and Sciences, National University of Mongolia, 14200, Ulaanbaatar, Mongolia
  • Otgontsetseg Ranaajav Department of Chemistry, School of Arts and Sciences, National University of Mongolia, 14200, Ulaanbaatar, Mongolia
  • Odonchimeg Genenbat Department of Chemistry, School of Arts and Sciences, National University of Mongolia, 14200, Ulaanbaatar, Mongolia
  • Amarzaya Bazarvaani Department of Chemistry, School of Arts and Sciences, National University of Mongolia, 14200, Ulaanbaatar, Mongolia
  • Sarangerel Davaasambuu Department of Chemistry, School of Arts and Sciences, National University of Mongolia, 14200, Ulaanbaatar, Mongolia https://orcid.org/0000-0002-4820-9538

DOI:

https://doi.org/10.5564/mjc.v23i49.2138

Keywords:

yak wool, transition metal ions, mordanting, bleaching

Abstract

Yak wool is a smooth, warm, and durable natural protein-structured fiber that could compete with cashmere and other high-end protein-structured fibers on the market. However, it suffers from drawing consumers’ attention due to the lack of color due to the shortfall of the yak wool bleaching technology. Herein, we studied the applicability of various transition metals, i.e., copper (II), cobalt (II), iron (II), and nickel (II) salts, as a mordanting reagent based on their effect on the hydrogen peroxide decomposition reaction and the morphological and mechanical properties of the bleached yak wool with the presence of these transition metal. Our study suggested that the iron (II) ion was the most efficient reagent for the mordant bleaching since it provided less fiber damage, relatively high strength, and elongation to the bleached yak wool with good whiteness, while the Cu (II) was the least favorable agent for the yak wool bleaching process.

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Published

2022-10-26

How to Cite

Arildii, D., Ranaajav, O., Genenbat, O., Bazarvaani, A., & Davaasambuu, S. (2022). Effect of various transition metal ions on mordanting stage of yak wool bleaching process. Mongolian Journal of Chemistry, 23(49). https://doi.org/10.5564/mjc.v23i49.2138

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