supercalender
An off-machine calender stack used to impart
density, gloss, and smoothness to paper. It is
similar to the calender except that alternate
chilled cast iron and softer rolls are used. The
rolls used to supercalender uncoated paper usually
consist of cast iron and highly compressed paper,
while the rolls used for coated paper are usually
cast iron and highly compressed cotton. The finish
produced varies according to the raw material used
to make the paper and the pressure exerted on it,
and ranges from the highest English finish to a
highly glazed surface. Supercalendered papers are
sometimes used for books containing fine line
blocks or halftones because they print well from
type and halftones, although for the latter they
are not as good as coated paper. (17 , 52 , 182 , 287 )
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