Used as a dyeing auxiliary in the textile industry, functioning as a dye leveling agent to promote more uniform and even dye distribution, reducing spotting or uneven coloration on fabrics. It is particularly effective in dyeing processes involving anthraquinone dyes and reactive dyes on cellulose fibers such as cotton. Additionally, it controls the rate of dye uptake by the fibers, leading to high-quality dyeing results and more efficient dye consumption.