Application unit for the direct or indirect application of a liquid or pasty medium onto a moving material web

An application unit for the direct or indirect application of a liquid or pasty medium onto a moving material web, comprising:

• at least one feed channel;
• a leading lip and a trailing lip defining a dosing gap therebetween, said dosing gap being configured as a free jet nozzle and disposed in fluid communication with said at least one feed channel, said dosing gap being subdivided in a comb-like manner and having a plurality of through-gaps for the medium;
• and
• at least two profiled strips in the dosing gap, each said profiled strip having a plurality of defined through-gaps that extend substantially parallel to a direction of flow of the medium in the feed channel, said at least two profiled strips being arranged behind one another in the direction of flow of the medium in the feed channel, the profiled strips having a longitudinal direction and being displacable relative to each other in a direction substantially parallel to the longitudinal direction.

An application unit for the direct or indirect application of a liquid or pasty medium onto a moving material web, comprising:

• at least one feed channel;
• a leading lip and a trailing lip defining a dosing gap therebetween, said dosing gap being configured as a free let nozzle and disposed in fluid communication with said at least one feed channel, said dosing gap being subdivided in a comb-like manner and having a plurality of through-gaps for the medium;
• and
• two profiled strips in the dosing gap, each said profiled strip having a plurality of defined through-gaps that extend substantially parallel to a direction of flow of the medium in the feed channel, said two profiled strips being arranged opposite one another in the dosing gap, the respective through-gaps of which together form through-openings for the medium.

An application unit for the direct or indirect application of a liquid or pasty medium onto a moving material web, comprising:

• at least one feed channel;
• a leading lip and a trailing lip defining a dosing gap therebetween, said dosing gap being configured as a free let nozzle and disposed in fluid communication with said at least one feed channel, said dosing gap being subdivided in a comb-like manner and having a plurality of through-gaps for the medium;
• and
• at least one profiled strip in the dosing gap, said at least one profiled strip having a plurality of defined through-gaps that extend substantially parallel to a direction of flow of the medium in the feed channel, the at least one profiled strip having a longitudinal direction and being configured as an endless loop in the longitudinal direction.