These Acid Dyes are extensively used for coloring silk and wool & many other protein fibers. Extremely brilliant and colorfast, these are highly concentrated, powdered hot water dyes, best known for producing uniform color. Our wide range of dyes exhausts extremely well and does not bleed or fade with washing. As compared to all other dyes, these are highly appreciated for producing the most vibrant colors of all. In addition, these are also used for direct painting or printing applications, using steam setting.