Ultrasonic Assisted Enhancement in Cotton Dyeing with Natural Colorants Extracted from Excoecaria Bicolor

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Abstract:

The dyeing of cotton fabrics using Excoecaria bicolor (Excoecaria cochinchinensis Lour.) as a natural dye has been studied in both conventional and ultrasonic techniques. Excoecaria bicolor leaves were extracted by various extracting procedures, using different solvents. The extractability of dye from natural origin using power ultrasonic was also evaluated in comparison with conventional heating. The results of dye extraction indicate that power ultrasonic is rather effective than conventional heating at low temperature and short time. The color of each dyed material was investigated in terms of the CIELab (L*, a* and b*) values.

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Key Engineering Materials (Volumes 675-676)

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683-686

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January 2016

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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