Abstract: Natural dyes from renewable sources such as Plants, Fruits, and Minerals have gained popularity as environmentally friendly alternatives to synthetic dyes. This study focuses on the extraction and application of natural dyes derived from coconut husk and henna, using eco-friendly mordants such as vinegar (acetic acid) and lemon juice (citric acid) to dye Kid -garments. With an increasing awareness of the environmental and health risks connected with synthetic dyes, this study emphasizes the necessity of natural dyeing methods in the textile sector, particularly for sensitive applications such as children's clothes. Coconut husk, a readily available agricultural byproduct, contains tannins and polyphenolic chemicals that give fabrics a warm brown tone. Henna, best known for its natural reddish orange pigment (lawsone), is also renowned for its colouring properties. Pigments from these sources are aqueously extracted and then applied to pre-treated cotton fabric. Vinegar (acetic acid) and lemon juice (citric acid) are used as mordants to absorb and fix dyes. Temperature, pH, and mordanting were all parameters considered while dyeing to promote colour fastness and vibrancy. The dyed samples are tested to determine whether they are suitable for practical use. The tests includes perspiration resistance, colour fastness to light, rubbing, and Washing. These tests ensure that the dyed cloth can endure wear and tear, making it suitable for kids' garments.

The findings revealed that both dyes had a high affinity for natural textiles like cotton, and that applying mordants like vinegar (acetic acid) and lemon (citric acid) improved colour retention. The colouring procedure has no negative impact on the environment, resulting in composting biodegradable residues. This study not only highlights the potential of natural resources and also emphasizes the role of eco-friendly products in sustainable textile products. By combining traditional dye with modern techniques, the natural dyes can provide a viable and environmental consciousness.

Keywords: Cocos nucifera, Lawsonia inermis, Cotton, Acetic acid, Citric acid, biodegradable

| DOI: 10.17148/IARJSET.2025.12325