The invention relates to a process for the production of paper from an aqueous
suspension containing cellulosic fibers, and optional fillers, which comprises
separately adding to the suspension a cationic organic polymer having one or more
aromatic groups and an anionic polymer having one or more aromatic groups, the
anionic polymer being selected from step-growth polymers, polysaccharides and naturally
occurring aromatic polymers and modifications thereof, forming and draining the
suspension on a wire, with the proviso that if the anionic polymer is a step-growth
polymer it is not an anionic melamine-sulphonic acid condensation polymer. The
invention further relates to a process for the production of paper from an aqueous
suspension containing cellulosic fibers, and optional fillers, which comprises
separately adding to the suspension a cationic organic polymer having one or more
aromatic groups and an anionic polymer having one or more aromatic groups, forming
and draining the suspension on a wire, with the proviso that the anionic polymer
is not an anionic polystyrene sulphonate or anionic melamine-sulphonic acid condensation polymer.
