Natural Dye Extracts Of Ansosila (Impatiens Tinctoria) Roots For Coloration Of Cotton Fibers

Abstract

Color is one of the most important factors in the attractiveness and marketability of textile products. Until recently, the majority of cotton garments were colored using synthetic dyes like reactive, acid, etc., which are typically not good to the environment. This study focuses on extracting natural dyes from Ansosila root and identifies eco-friendly methods for dyeing cotton fabrics. Aqueous extraction was used to extract natural coloring pigments. Impatiens tinctoria was used as a bio-based dye to color cotton garments. In order to improve the dyeing strength, dyeing experiments were conducted both chemical-free and employing salts of metals including iron, aluminium, and copper. The maximum absorption peak showed at 445nm. Functional groups that correspond to phenolic compounds associated with –OH (3390 cm −1 ), C-O (1047 cm −1 ), olefinic (alkene) associated with trans-C-H out-of-plane bend (959 cm−1 ), aromatic ring (aryl) group related to C=C-C aromatic ring stretch (1598 cm−1 ), primary and secondary amino group (1598 cm−1 ), vinyl C-H in-plane bend vibration is attributed to the band at 1419 cm−1 and common inorganic sulfate ion (1116 cm−1 ) were all able to be identified through FT-IR analysis. The color fastness qualities of extracted coloring compounds were used to evaluate their dyeing performance. The findings were good and the dye displayed a darker shades. The outcome also demonstrates that cotton fabrics colored with the same dye extract but with various types of mordants produced fabrics with a variety of colors. The mordanting mechanism of the extracted dye was also proposed. Fastness values ranging from good to excellent were noted (3-5). Fortunately, unmordanted fabric showed unusual very good fastness performances. Mordanting with FeSO4 showed better fastness performances. All the fastness performance test results were in commercially acceptable range. Given that the dyes outstanding color fastness, it is recommended that natural dyes derived from Ansosila root can be used well as coloring agents for cotton fabrics.