Acid dyes are a specialized type of dye used to color natural and synthetic fibers. They require an acidic environment for effective dyeing and can bond with the fibers through ionic and hydrogen bonding interactions. Acid dyes are soluble in water and offer a wide range of vibrant colors. They exhibit good Colorfastness and are commonly used on protein-based fibers like raw leather, wool and silk. Acid dyes are essential for adding long-lasting and intense color.
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