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http://dx.doi.org/10.5764/TCF.2020.32.2.89

Efficacy of Amaranth(Amaranthus spp. L.) Plant as a Natural Dye Resource: Focused on Wool Dyeing  

Yeo, Youngmi (Department of Clothing and Textiles, Chonnam National University)
Shin, Younsook (Department of Clothing and Textiles, Chonnam National University)
Publication Information
Textile Coloration and Finishing / v.32, no.2, 2020 , pp. 89-95 More about this Journal
Abstract
In this study, the efficacy of Amaranth(Amaranthus spp. L.) as a natural dye resource was investigated for wool fabrics. It is known that a large amount of flavonoid and anthocyanin colorant are contained in leaves and stems, as well as red flowers. The optimum condition of dyeing was 1.3% of dye concentration(o.w.b.) at 100℃ for 60 minutes, resulting the K/S value, 23.43 and R Munsell color on the wool fabrics. Al, Fe, Zinc and Titanium were used as a mordant. The mordant improved the dye uptake, regardless of the mordant type and mordant method. The pre-mordanting method was more effective than the post-mordanting method. Al pre-mordanted fabric showed the highest K/S, 30.02. Light fastness and washing fastness were high in grades 4-5 and 5, and rubbing fastness was good in grades 4 and 4-5 in dry condition, but low in grades 2-3 and 3 in wet condition. The dry cleaning fastness was excellent in all 5 grades. However, the alkaline perspiration fastness ratings were low in grades 2-3 and 3. The results show Amaranthus spp. L. colorant can be used as a functional natural dye for wool fabrics.
Keywords
Amaranthus spp. L.; natural dyeing; wool; fastness; mordant; dye uptake;
Citations & Related Records
Times Cited By KSCI : 12  (Citation Analysis)
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