Mirabilis jalapa Linn. Flowers, a potential source of natural dye for cotton
- Author Binu Thomas
- Co-Author Treesa Santhosh, Sreekutty Sreedharan, Chandralekha C.T
- DOI
- Country : India
- Subject : Botany
Keywords : Natural dye, Mirabilis jalapa L., flowers, Natural dye, Mordants
Abstract
The present study is an attempt on dyeing of cotton fibers using natural dye from the flowers of Mirabilis jalapa Linn. Dyeing of cotton with and without the use of mordant, pre-mordanting and at different pH was tested. The pre-mordanting was carried out with four selected mordants such as Potassium dichromate, ferrous sulphate, Copper sulphate, Tannic acid and their combinations. Different colour shades were obtained with respect to mordants.The dyeing results in shades of brown, black, yellow and green colour. Colour intensity depends on the type of mordants and pH. Ferrous sulphate and Tannic acid imparts darker shades. When the pH of dye bath increases the colour intensifies. pH 8 gave more better colour shades than pH 4. Among the combinations of mordants, ferrous sulphate and Tannic acid was found to be more suitable for better dyeing output.
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