This proceedings book is based on selected and reviewed contributions from the AUTEX 2025 World Conference, held on June 11&13, 2025, in Dresden, and specifically focuses on sustainability, chemistry, and finishing in the textile sector. It highlights innovative research on eco-friendly processes, advanced material development, and circular economy strategies. Topics include conductive textiles using carbon nanotube coatings, bio-based dyeing with wood extracts, UV modification of hemp fibers, and sustainable tanning methods. The volume also addresses ultrasonic washing for improved fastness, thermodynamic analysis of dyeing, environmentally responsible surface treatments, and polymer-based photonic textiles. Further sections explore bio-based coatings with nano-SiO-, hybrid polymer matrices, and recycling approaches such as enzymatic degradation and elastane removal. By integrating sustainability intelligence, digital product passports, and energy-efficient finishing technologies, this book provides a comprehensive roadmap for advancing traceability, circularity, and environmental responsibility in textiles.