Phase-change inks, also known as hot melt, are distributed in
solid form and, when introduced into a compatible system, are
melted before being inkjet printed.Advantages of phase-change inks
include that they are very fast drying (solidifying), environmentally
friendly, and exhibit good opacity. It is also relatively easy to control
the quality of the print because they do not tend to spread, due to
their rapid solidification. Their primary disadvantages are the lack
of durability and poor abrasion resistance. Phase-change inks are
currently used in applications such as printing of barcodes on nonporous
substrates.