heat-set ink
A printing ink manufactured in such a manner as to
enable it to dry quickly, thus allowing for higher
speed printing. The materials used in manufacture
vary but usually include a concentrated pigment,
synthetic resins, and one of the volatile oils.
Following printing, the printed web of paper is
heated to a temperature of approximately
350° F. (177° C.) which
volatilizes the oil, after which the web is
rapidly cooled by passing it through chilled
rollers which hardens the residue. (140 , 276 )