Solid ink (also known as hot melt ink[1][2]) is a type of ink used in printing. Solid ink is a waxy, resin-based polymer that must be melted prior to usage, unlike conventional liquid inks.[1][3] The technology is used most often in graphics and large-format printing environments where color vividness and cost efficiency are important.[4][5]
^Romano, Frank J. (2008). Inkjet! : history, technology, markets, and applications (1st ed.). Pittsburgh: Digital printing Council, PIA/GATFPress. ISBN978-0-88362-623-8. OCLC251193739.