Textile dyeing and printing are among the most resource-intensive stages of textile production, traditionally associated with high water, energy, and chemical consumption. Auxiliaries used in these processes—including dispersing agents, wetting agents, thickeners, and binders—are indispensable for achieving desired performance, but their environmental impact has come under increasing scrutiny. The sustainability agenda in this sector emphasizes the reformulation of auxiliaries to eliminate hazardous substances, enhance biodegradability, and improve process efficiency. This includes the use of bio-based inputs, low-temperature dyeing systems, and multifunctional products that reduce the total chemical load. Advances in digital printing are also influencing auxiliary development, requiring new formulations optimized for minimal waste and precision application. Transparency is a growing priority, with textile producers seeking verification that auxiliaries comply with global standards such as REACH, OEKO-TEX®, and the ZDHC roadmap. Suppliers who provide data on toxicity, carbon footprint, and traceability are gaining favor, especially as brands look to meet ambitious sustainability commitments. B2B directories and sourcing platforms are crucial in enabling textile companies to identify trustworthy chemical partners and stay informed about regulatory shifts and innovations. These networks foster collaboration, reduce procurement risks, and accelerate the industry’s transition toward more responsible textile coloration practices.