Disperse dyes are also known as sublimation inks, as the ink molecules change directly from a solid to a gas.

It applies to the organic coloring substances which are free from ionizing groups, is of low water solubility and is suitable for dyeing hydrophobic fibers. The dye has derived its name for its insoluble aqueous properties and the need to apply it from an aqueous dispersion. Of all the dyes, they are of the smallest molecular size.

Disperse dyes have substantivity for one or more hydrophobic fibres like cellulose acetate, nylon, polyester, acrylic and other synthetic fibers.