Eco-friendly Dyeing of Cotton Fabric with Natural Colorants Extracted from Banana Leaves

摘要

This Work aimed to use pigments extracted from banana leaves as natural waste source to dye some Egyptian cotton fabrics. Both alkaline and acetone extracted solutions were analyzed by high performance thin layer chromatography (HPTLC) analysis technique. The solutions were applied to the pre-mordanted bleached and mercerized cotton fabrics made from Giza 86 and Giza 90 cotton varieties. Ferrous sulphate, copper sulphate and potassium dichromate were used as mordant. The factors affecting the fixation of the extracted dye with cellulose was studied. The treated and untreated fabrics samples were tested for their mechanical properties expressed as tensile strength (kg/force) and elongation%. Dyeing performance in terms of colour parameters (K/S, ?L*, ?a*, ? b* and ΔE), and fastness properties (wash, perspiration, and light fastness) were studied. The samples show high tensile strength, high colour strength, and high fastness properties. These results are very important for industrial application with the production of a natural dye as an inexpensive source from banana leaves as a by-product. Another objective is to increase the production of eco-textile garments with a good price for the Egyptian customers.