Dye-based ink is a type of ink commonly used in printers and writing instruments. It consists of colorants that dissolve in a liquid, allowing for vibrant colors and smooth application. This ink is often favored for its ability to produce bright, vivid images, making it popular for photo printing and high-quality documents. However, dye-based ink can be less water-resistant and fade more quickly than other types, such as pigment-based ink. It is also more susceptible to smudging, especially on non-absorbent surfaces. Despite these drawbacks, its affordability and color quality make it a popular choice for everyday printing needs.