The invention relates to a process for producing a coated paper web, According
to the process, a paper web is formed from a fibrous raw material in a paper machine,
the paper web is coated with a pigment-containing coating mix, and the coated paper
web is calendered. According to the invention, the paper web is coated with a coating
composition that contains as the mineral pigment mainly a mixture of gypsum and
calcium carbonate, the amount of gypsum being at minimum 10% by weight of the total
amount of gypsum and calcium carbonate. With mixtures of calcium carbonate and
gypsum, such as mixtures of PCC and gypsum and mixtures of PCC, ground carbonate
and gypsum, there are obtained simultaneously a sufficient gloss and smoothness
as well as a brightness and opacity better than with PCC-kaolin pastes.
