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Unconventional Natural Dyeing Using Microwave Heating with Cochineal as Natural Dyes

N.S. Elshemy (National research center, Textile research division, El-Behos St.Dukki, Cairo, Po. 12622, Egypt )

Research Journal of Textile and Apparel

ISSN: 1560-6074

Article publication date: 1 November 2011

Abstract

We investigate cochineal as a natural dye using microwave irradiation under different factors such as dye extraction, the pH level of dye bath, dyeing time, dye concentration, microwave power level and mordants, and compare the results with those obtained using traditional heating. The dye extraction indicates that microwave heating is a more effective method than traditional heating. The kinetic parameters are examined to determine half-dyeing time (t½), dye affinity (Δµ°), dye rate constant (K) and heat content (ΔH).

Keywords

Citation

Elshemy, N.S. (2011), "Unconventional Natural Dyeing Using Microwave Heating with Cochineal as Natural Dyes", Research Journal of Textile and Apparel, Vol. 15 No. 4, pp. 26-36. https://doi.org/10.1108/RJTA-15-04-2011-B004

Publisher

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Emerald Group Publishing Limited

Copyright © 2011 Emerald Group Publishing Limited