Abstract
The dyeing of cotton fabrics using mulberry leaves (Morus alba L.) as a natural dye has been studied in both conventional heating and ultrasonic techniques. The extractability of Mulberry leaves dye from natural origin using power ultrasonic was also evaluated in comparison with conventional heating. The mulberry leaves extract to provided brown-green to green color, depending on the pH concentration. The results of dye extraction indicate that power ultrasonic is rather effective than conventional heating at low temperature and short time. The effects of dye bath pH, dyeing time, dyeing temperature and mordants were studied and the colorimetric parameters L*, a*, b* of dyed fabrics with ultrasonic and conventional techniques were compared.
Highlights
There is a growing demand for eco-friendly and non-toxic colorants [1]
The dyeing of cotton fabrics using mulberry leaves as a natural dye has been studied in both conventional heating and ultrasonic techniques
The absorbance values for dye extract obtained by conventional heating (CH) method and US method at the wavelength of 638 nm are shown in Fig. 1(b) and 1(c)
Summary
Dyes derived from natural sources for applications such as food and dyeing of textile have emerged as an important alternative to harmful synthetic dyes [2,3]. Most natural dye colors are found in the roots, bark, leaves, and flowers of plants. Production cost of natural dyes from direct harvesting are high as compared to production costs from waste and byproducts. Mulberry (Morus alba L.) leaves are generally used as a food source of silkworms in Asian regions [4,5]. Use of mulberry leaves as byproduct of silk and food industry is a promising concept which can lower costs involved in natural dye production [6]. The dyeing of cotton fabrics using mulberry leaves as a natural dye has been studied in both conventional heating and ultrasonic techniques
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