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 )