Voith Sulzer Papiermaschinen Gmbh

Benjamin Mendez

Zygmunt Madrzak

Martin Friedrich Kustermann

Michael Trefz

Ingo Gottwald

Albrecht Meinecke

Bernhard Kohl

Manfred Ueberschar

A method and apparatus for coating a traveling layer of material, in particular paper and/or cardboard. An applicator implement applies a predetermined and proper amount of a liquid or pasty medium onto an outer surface of a first rotating applicator roller which in turn transfers the liquid or pasty medium onto a first side of the moving layer of material just as it is moving through a press nip. A second layer of coating medium is applied indirectly with a second applicator implement onto an outer surface of a second rotating applicator roller from where it is transferred onto the previously coated side of the moving material layer while the first coat of coating medium is still wet.

Method and apparatus for wet-in-wet coating of a moving layer of material

An apparatus for successive application of two coats of at least one coating medium on one side of a traveling fiber material web includes a rotating backing roll and a first rotating applicator roll having a roll surface. The first applicator roll and the backing roll define a first press nip therebetween. A first applicator assembly is positioned in association with said roll surface for applying a first coating medium to the roll surface. The first applicator assembly and the first applicator roll conjunctively define a first indirect applicator for applying the first coating medium to a first side of the fiber material web. A first drying apparatus is positioned after the first press nip relative to a direction of travel of the fiber material web. The first drying apparatus is positioned in association with the first side of the material web. A second applicator is positioned after the first drying apparatus relative to the direction of travel of the fiber material web. The second applicator is also positioned in association with the backing roll whereby the traveling fiber material web travels between the second applicator and the backing roll. The second applicator is configured for applying a second coating medium to the first side of the fiber material web.

Apparatus for successive application of two coats of liquid or pasty

The invention relates to an application unit for the direct or indirect application of a liquid or pasty medium (12) onto a moving material web, in particular consisting of paper or board, comprising a dosing gap formed as a free jet nozzle, the dosing gap being formed between a leading lip (4) and a trailing lip (8), and at least one feed channel (14) leading to the dosing gap. The application unit is characterized in that the dosing gap is subdivided in a comb-like manner and has a plurality of defined through-gaps (32) for the liquid or pasty medium (12).

Application unit for the direct or indirect application of a liquid or

The invention relates to an apparatus for applying a fluid or pasty medium to a continuous material web, particularly one made of paper or cardboard, having at least one application unit (1) for the fluid or pasty medium, comprising a roll (2) assigned to the application unit (1) for receiving the fluid or pasty medium in the case of an indirect application or for supplying the web in the event of a direct application, further comprising an application blade (6), and a cleaning blade (7) arranged against the direction of rotation (P) of the roll (2) at a distance from the application blade (6), the cleaning blade (7) limiting by means of the application blade (6) an application chamber (5) for the fluid or pasty medium and having a blade element (12) extending across the width of the web and arranged within a blade base (13). The blade element (12) is movably arranged in a direction running essentially parallel to its longitudinal extension.

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Heidenheim, Germany

Benjamin Mendez