transported further and guided under nozzle rail 10 through nozzles 11 a feature substance suspension is directed onto the moist paper web from above in order to produce linear feature patterns in the paper web parallel to the outside edge of the paper web several hundred nozzles 11 can be provided side by side which are individually activable and deactivable via associated stopcocks 12 following nozzles 11 in the transport direction of the paper web is suction device 3 which is provided under paper web 2 to suck feature substance suspension applied to paper web 2 by nozzles 11 through paper web 2 so that only the feature substances are left in the paper as indicated by the figure said suction device can already begin before nozzles 11 in the transport direction of the paper web paper web 2 is then supplied optionally to following processing stations not shown for drying coating printing and the like the apparatus for incorporating feature substances into paper web is composed substantially of four subsystems the core element of the apparatus is a volume preferably defined as a closed circuit 13 of nozzle rail 10 formed as a pipe system and having centrifugal pump 14 as a circulating pump for continuously conveying feature substance suspension within the pipe system the second subsystem is formed by water preparation and supply unit 20 and the third subsystem by feature substance concentrate preparation and supply unit 30 the fourth subsystem is formed by nozzles 11 and their connecting pipes 15 to closed circuit 13 of nozzle rail 10 the various subsystems will be described.