Study on The Reactive Dyeing of Cotton Fabric Using Two Type of Reactive Dyes for Comparing Color Fastness to Light

Abstract

This study investigates the reactive dyeing of cotton fabric using two different types of reactive dyes for the purpose of comparing their color fastness to light, wash, rubbing & perspiration. Cotton samples were dyed under standardized conditions, and the performance of each dye type was evaluated through controlled exposure to light sources. The study focused on the differences in dye–fiber bonding mechanisms and how these impact the durability and stability of color when subjected to light-induced fading. Results indicated that bifunctional reactive dyes exhibited superior light fastness compared to monofunctional dyes, likely due to their ability to form stronger and more stable covalent bonds with cellulose fibers. This research provides valuable insights for textile manufacturers seeking optimal dyeing solutions for enhanced color retention in light-exposed environments