Pigment dyes are colorants that provide vibrant hues to various materials, including textiles, plastics, and paints. Unlike dye, which chemically bonds with the material, pigment dyes remain suspended on the surface, making them more stable and resistant to fading from light and washing. These dyes are composed of finely ground particles that can be mixed with a binder to adhere to surfaces. They are widely used in industries such as printing, cosmetics, and art supplies due to their versatility and ability to produce a wide range of colors.