Voith Sulzer Papiermaschinen Gmbh

Voith Sulzer Papiertechnik Patent Gmbh

Voith Paper Patent Gmbh

R&uuml;diger Kurtz

Bernhard Kohl

Martin Friedrich Kustermann

Harald Hess

Gerhard Kotitschke

Richard Christian Bernert

Oswald Satzger

Benjamin Mendez-Gallon

Hans-J&uuml;rgen Wulz

Hans-Dieter D&ouml;rflinger

Erhard Gruber

Peter Petermann

Benjamin Mend&eacute;z-Gallon

Zygmunt Madrzak

Karlheinz Straub

Wolf Gunter Stotz

Georg Kugler

Stefan Reich

Martin Tietz

Benjamin M&eacute;ndez-Gallon

Thomas Hermsen

Manfred Uebersch&auml;r

Werner Goebel

Christioph Henninger

Karl-Heinz Hannen

Hans Peter Hoffmann

Franz Kustos

Patric Romes

Kurt Hack

A method of producing paper webs coated on both sides includes the following steps: a) indirectly applying a liquid onto the paper web by passing the web through at least one nip formed by a roll and a counterelement, whereafter the web is dried; b) next, directly applying coating mixture at surplus only on one side of the web, whereafter the surplus coating mixture is removed again by use of a doctor element, the web being dried again thereafter; and c) lastly, directly applying coating mixture at surplus only on the other web side, whereafter the surplus coating mixture is removed by use of a doctor, whereafter the web is dried again. In the indirect application of liquid in the nip, or in the nips, either coating mixture to produce so-called MWC papers or a sizing suspension to produce so-called LWC papers is selectively applied.

Method and apparatus to produce paper webs coated on both sides

An application apparatus is for applying a liquid or pasty medium to a moving base. The moving base is a surface of a material web in a case of direct application and a surface of a transfer element for transferring the medium to the material web in a case of indirect application, the material web being one of paper and cardboard. The application apparatus has an inlet side and an outlet side with respect to a direction of movement of the moving base. The application apparatus includes a carrying beam; an essentially rigid supporting unit provided on the carrying beam; a sealing doctor device positioned at the inlet side of the application apparatus, the sealing doctor device being fixedly attached to the supporting unit; and a metering doctor device positioned at the outlet side of the application apparatus, the metering doctor device being fixedly attached to the supporting unit. The sealing doctor device and the metering doctor device define an application chamber therebetween.

Apparatus for the application of a liquid or pasty medium to a moving fiber web

Process for operating a calender and a calender. The calender includes a hard roll and a soft roll with an elastic surface, in which the hard roll and the soft roll are arranged to form at least one nip, and a finishing medium application device positioned adjacent the soft roll. The process includes providing a finish on the elastic surface of the soft roll.

Process for operating a calender and calender

The invention relates to a method for directly or indirectly applying a liquid or pasty application medium ( ) onto one or both sides of a continuous surface ( ), wherein the application medium ( ) is applied to the surface ( ) in a plurality of single application regions by means of a plurality of single application nozzles ( ) spaced apart from one another side by side and/or in succession in the direction of width (B) and/or longitudinal direction of the surface ( ) and clearly distanced (D) from the surface ( ), the application medium ( ) emerging from each of these nozzles, wherein adjacent single application regions each intersect (U) at least in part in their respective edge regions, causing a layer of application medium to be produced across substantially the entire width (B) of the surface ( ) to be coated. The invention also relates to an apparatus for performing this method.

Method and apparatus for directly or indirectly applying a liquid or pasty application medium to one or both sides of a continuous surface

An apparatus applies a liquid or viscid coating medium onto a moving material web, especially one made of paper or cardboard. A coating mechanism first applies the coating medium onto an applicator element or an applicator roll, which subsequently transfers the coating medium at a coating location onto the material web in the form of a coating layer. Furthermore, if so desired, a doctoring device can be positioned at a doctor station, adjacent to the coating location, on the downstream side relative to the movement of the material web for the purpose of smoothing and/or metering the coating. The coating apparatus incorporates an apparatus for the generation and/or supplying of a fluid, preferably steam. This apparatus is positioned adjacent to the coating location or to the doctor station on the downstream side relative to the movement L of the material web.

Apparatus for applying a liquid or viscid coating medium onto a moving fiber material web

An apparatus transfers a threading strip and/or a material web can from a pick-up area into a transfer area along a web travel path for production and/or processing/of the strip and/or web. The device includes a carrier for moving the strip and/or web along the web travel path through the machine at a carrier speed. The device also includes at least one pick-up unit for transferring the strip and/or web from the pick-up area to the transfer area at relocation speed that is lower than the carrier speed.

Device and method for transferring a threading strip or a material strip

Method of applying a coating medium on a traveling fiber material web

A device for direct or indirect application of a liquid or viscous coating medium onto a moving material web, specifically a paper or cardboard web, includes an applicator unit which, in the direct application method, applies the coating medium in the form of a coating layer directly onto the material web at a point of application. In the indirect application method, the coating medium is first applied onto an applicator element, for example an applicator roll, which then transfers, at the point of application, the coating medium to the material web in the form of a coating layer. In addition, a drying device for drying of the coating layer is provided downstream from the point of application, viewed in the direction of flow of the material web. In the applicator unit, a device for moistening and/or warming the material web, coating medium or the coating layer is additionally provided before the drying device, viewed in the flow direction of the material web.

Device for direct or indirect application of liquid or viscous coating medium onto a moving material web

Method for direct or indirect application of liquid or viscous coating medium onto a moving material web

A multi-ply paper includes a fiber material base layer, which is unbleached or made of wastepaper, and a top layer. Instead of a conventional &ldquo;white&rdquo; fiber material top layer, the top layer is in the form of a white or colored top coating.

Multi-ply paper

Growing community of inventors

Heidenheim, Germany

Rüdiger Kurtz

Growing community of inventors

Heidenheim, Germany

R&uuml;diger Kurtz

Rüdiger Kurtz