Used as a reducing agent in textile processing, particularly in vat dyeing and sulfur dyeing processes. It helps dissolve insoluble dyes by converting them into water-soluble forms, allowing even color distribution on fabrics. Commonly applied in the dyeing of cotton, rayon, and other cellulosic fibers. Also utilized in the removal of excess or unwanted dyes during fabric correction and stripping. Offers a lower toxicity profile compared to traditional reducing agents like sodium hydrosulfite, making it suitable for industrial applications where environmental and safety concerns are prioritized.