Natural Dyeing of Cotton Fabric with Nerium Oleander Flower Extract

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N. KHASKHALI
A. K. JHATIAL
K. M. BROHI
M. JAWADUDDIN

Abstract

The current research focuses on the extraction of natural dyes and their phytochemical and pharmacological properties from turmeric, clover, and oleander. Use water, acid, alcohol, and alkaline extraction methods to obtain dyes. The UV spectrum study of the dye shows that the maximum absorption rate and its color change depend on the pH value and solvent used in the extraction process. The colorant prepared from turmeric using the aqueous extraction method and the colorant prepared from fenugreek using the alkaline extraction method both showed good antibacterial activity. The extraction of oleander water and alcohol can inhibit the growth of many fungi, including Trichoderma, Rhodophyton, Candida albicans, Aspergillus niger, Cladosporium. The antibacterial properties of dyes are used for the development of antibacterial tissues. Optimal conditions for dyeing methods (conventional, ultrasonic, and microwave), such as temperature, pH, and dyeing volume. The stains used in this work cannot improve the washing performance of dyed fabrics. The strength properties are used for coloring. The conventional dyeing method has higher light resistance than any of these three methods, but in terms of washing resistance, there is not much difference in color resistance. From the comparison of the color intensity values, it can be seen that the color intensity value of the cotton fabric dyed by the microwave dyeing method is better than any of the three methods, but because the microwave and ultrasonic dyeing methods are not commercially available. Therefore, we decided to dye cotton fabrics in the usual way. The wastewater results show that the wastewater produced by flower dyeing has lower BOD and COD levels compared with reactive dye wastewater.

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