The Effect of Ultrasonic Treatment on Dyeing of Luffa cylindrica Fibers

Abstract

In this research work, conventional and ultrasonic treatments on exhaust dyeing of natural Luffa cylindrical (LC) fibers with reactive dyes were studied. Accordingly, the samples were alkali scoured, bleached with H₂O₂ and dyed with C.I. Reactive Red 241 and C.I. Reactive Blue 19 at 60 °C, 60 min with or without ultrasonic energy. The colouristic properties, penetration behavior and colour fastnesses were investigated and compared with each other. Using ultrasonic energy for dyeing LC fibers enhances the exhaustion of dye, good colouristic properties and colour fastnesses in dyeings are achieved. The ultrasonic power seems promising since it enhances colour yields and reduces process time.

Keywords

• luffa cylindrica fibers; ultrasonic energy; dyeing of luffa cylindrica fibers

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