J. M. Voith Gmbh

Voith Sulzer Papiertechnik Patent Gmbh

Wolfram Sturm

Wolfgang Mayer

Gerhard Kotitschke

Werner Kade

Volker Schmidt-Rohr

Georg Kugler

Hans-Joachim Fissmann

Johann Moser

Ingolf Cedra

Georg Zurn

Klaus Prechtel

Benjamin Mendez-Gallon

A gravure paper and a method of manufacturing gravure paper having a maximal roughness depth of approximately 1.40 &mgr;m. The method utilizes a paper machine including a forming system, a first press section, and a drying section, and includes producing a stock suspension including a stock having a freeness of greater than or equal to approximately 50 ml CSF, forming an unfinished fibrous material web from the stock suspension, and applying at least one of a pigment and a filler slurry to the unfinished fibrous material web between a beginning of the forming system and a position at which the dry matter content of the unfinished fibrous material web is approximately &lE;90%.

Gravure paper and manufacturing process for this paper

A material web to be dried runs across a first drying cylinder onto which it is forced by a concurrently running continuous drying wire. Thereafter, the web and the drying wire proceed jointly from the first drying cylinder to a suction guide roll. From the latter, at least the drying wire returns to another drying cylinder. This path of the drying wire defines a wire space S. Blown into this wire space, for instance by means of a blow pipe, is drying air at uniform distribution across the machine width and sucked out again by the suction guide roll. This suction air is blown at the material web by means of a circulation air fan, at the circumference of the suction guide roll, and is sucked away again from there by means of an exhaust air fan.

Device for drying a material web

A guide roll for a porous belt, for instance for the drying wire of a paper machine, is described. A perforated roll shell rotates about a stationary air guide box. The guide box has two air chambers which extend across the length of the guide roll. One air chamber serves the discharge of blowing air and the other air chamber serves the intake and removal of suction air. Contained between the air guide box and the roll shell is an annular space in which a blowing zone and a suction zone are defined by longitudinal seals. Considering that blowing air and suction air may have different temperatures, the two air chambers of the air guide box are movable axially relative to each other.

Guide roll for a porous belt

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Heidenheim, Germany

Wolfram Sturm