Acid Blue 90丨CAS 6104-58-1

Acid Blue 90 is an anionic anthraquinone-based acid dye widely used across textile dyeing, leather processing, paper coloration, and ink formulation. In the textile industry, it is applied to dye wool, silk, nylon, and polyamide fibers, offering vivid blue shades with strong uniformity and good washfastness. It is also used in leather finishing processes where deep, consistent coloration is required. In the paper industry, Acid Blue 90 is incorporated into surface coatings and pulp coloring systems to achieve bright, stable hues. The dye is additionally utilized in water-based inks, stamp pad inks, and coloration of detergents and household products. Beyond industrial uses, it appears in laboratory applications such as biological staining protocols and as a tracer dye in analytical studies. Its stability and solubility allow it to perform effectively in a wide range of aqueous and mildly acidic environments.

Acid Blue 90 provides several advantages due to its high color strength, excellent solubility, and strong fastness properties. The dye produces intense and uniform blue shades with minimal patchiness, making it suitable for high-quality textile and leather applications. It demonstrates good resistance to washing, perspiration, and light, helping finished goods retain their vibrancy during use. Its compatibility with various fibers and aqueous systems simplifies processing and enables versatile formulation options. The dye dissolves readily in water, allowing efficient preparation of dye baths and avoiding undissolved particles that could interfere with quality. Its chemical stability ensures consistent performance across different industrial processes, contributing to reproducibility and reliability. These characteristics make Acid Blue 90 a cost-effective and dependable dye for large-scale manufacturing and specialized applications.