Pigment inks are also popular for home décor applications. Pigment inks are also very popular in roll-to-roll digital textile printing because they can be used on a wide range of fibers. Prints made with pigment inks look duller than acid and reactive dyes. Because the color does not penetrate the surface of the fabric, but rather settles on the surface of the fiber, it sometimes lacks washability, although color fastness is usually good. For this reason, most experts recommend using pigment inks for home décor rather than everyday fashion applications. Industrial strength roll-to-roll textile digital printing occurs primarily in the textile industry. The two main water-based liquids used there, reactive dyes for cotton, wool and nylon, and acidic inks for silk, wool or polyamide, require custom pretreatment to achieve high-quality results. Post-treatment requires steam treatment to ensure that the dye is embedded in the fiber. Several wash cycles are required to remove any...