Chemistry of textile chemicals and auxiliaries drives fabric quality and sustainability. Understanding their molecular structure is key to optimizing performance, environmental impact, and innovation in textile treatment. Chemistry of Textile Chemicals and AuxiliariesClassification of Textile ChemicalsRole of Functional GroupsKey Functional Groups and Their Textile Roles:Chemical Mechanisms in Dyeing and FinishingImpact on Fiber PropertiesEco-Friendly InnovationsIndustrial ApplicationsQuality Control and TestingRegulatory and Safety…