Authors | Hossein Barani |
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Journal | Progress in Color, Colorants and Coatings |
Page number | 145-154 |
Serial number | 12 |
Volume number | 3 |
Paper Type | Full Paper |
Published At | 2019 |
Journal Grade | ISI |
Journal Type | Typographic |
Journal Country | Iran, Islamic Republic Of |
Journal Index | isc،Scopus |
Abstract
Pulicaria gnaphalodes has various biological activities and is used as an herbal plant in traditional medicine. The major components of the aqueous extract of this plant are flavonoids, terpenoids and phenolic compounds which could be a good candidate for dyeing of wool fibers. In this study, the aerial part of Pulicaria gnaphalodes plant was extracted and used for the coloration of wool yarns. Firstly, the chemical components of the Pulicaria gnaphalodes extract were identified using a gas chromatography-mass spectrometer (GC-MS). After that, the effect of dyeing procedure parameters such as mordant concentration, pH of dyeing bath, dyeing duration, and dye concentration was assessed on the color characteristics of the dyed yarn samples. The results and observations indicate that the un-mordanted and alum mordanted dyed samples have a yellow color and their hue angle value is located between Huemax= 89.11° and Huemin=76.49°. The obtained yellow shade at the optimized dyeing condition presented a considerable good washing and light fastness. In addition, the aqueous extract of aerial parts of Pulicaria gnaphalodes presented an inhibitory effect against S. aureus and E. coli bacteria.
tags: Natural dyeing, Yellow color, Antibacterial, Flavonoid, Color characteristic