Abstract: A treatment device (1) and a treatment method for a web (2) of endless material, in particular of a textile fiber material, preferably a non-woven fabric are provided. The treatment device (1) includes a treatment chamber (14) in which the moving web (2) is treated with a flowing gas, in particular air, an inlet (10) and an outlet (11) for the web (2), and a plurality of chamber regions (20-24). The plurality of chamber regions (20-24) are stationarily arranged on top and next to each other. The web (2) runs through the plurality of chamber regions (20-24). In the chamber regions (20-24), the gas, in particular the air, flows against and through the web (2) from one side.

Abstract: A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution in a kneader having at least two shafts in axially parallel rotation, wherein the reaction mixture is transported in axial direction and the region at the start of the kneader is trace-heated.

Abstract: A process for producing water-absorbing polymer particles, wherein an aqueous polymer gel is dried in a forced-air belt drier on a circulating conveyor belt and the surface of the conveyor belt has a multitude of elevations or depressions which are suitable for restricting the mobility of the aqueous polymer gel in transverse direction.

Abstract: A process for producing water-absorbing polymer particles, wherein heated water-absorbing polymer particles are remoisturized and cooled in a high-speed mixer.

Abstract: A process for producing water-absorbing polymer particles, wherein an aqueous polymer gel is dried in a forced-air belt drier on a circulating conveyor belt and the surface of the conveyor belt has a roughness of at least 0.9 ?m.

Abstract: Apparatus and methods particularly suited for drying tissue grade paper. In certain embodiments, a wet web, such as a web exiting a tissue manufacturing machine, is transferred to an air floatation dryer with specially arranged air bars and impingement nozzles described herein where the wet web is dried while still at least partly supported by an air-permeable belt. In certain embodiments, the specially arranged air floatation dryer comprises one or more air floatation dryer units through which the wet web is conveyed by way of a supporting endless loop or belt of air-permeable construction. The air bars and opposing impingement nozzles are so arranged as to force the web into contact with the belt and then subsequently lift the web from the belt surface in a repetitive and alternating fashion as the web and belt travel through the dryer.

Abstract: A method and an installation or machine for screening and drying strand material. The strand material still in the moist state is screened with a screening device into at least two different fractions of strand material. At least one of the screened fractions is fed to at least one dryer, and the feeding of the strand material to the dryer is carried out by means of a conveying device, which is controlled by a control unit. The control unit assures a uniform, predetermined weight and/or volume input into the dryer(s) by measuring the mass and/or the weight per unit area of the strand material by means of a measuring device.

Abstract: A dry end of a tissue machine is made shorter by close-coupling a reel-up to the drying section and supporting the web from the drying section to the reel-up by a foil or a belt such that web stability is maintained, thus allowing high-speed operation. The foil's downstream edge can form a nip with the paper roll and nip load can be controlled by controlling pivotal movement of the foil. The reel-up can include a calendering belt for calendering the web as it passes through a nip between the belt and a reel drum supported on the belt, and a rotatable reel spool on which a paper roll is wound in nipping engagement with the reel drum. Alternatively, the reel drum can be eliminated and the paper roll can be supported on the belt. A composite shaftless core for winding is also disclosed.

Abstract: A property of a paper web is measured using one or more reflectance measurement sensors emitting measuring beams onto the web and receiving the beams reflected from the web, from which the web property is deduced. The web is supported on a web support during the measurement, such as on a passive or active airfoil or fabric. One or more measurement sensor(s) can be integrated within an active airfoil, and can comprise a plurality of optical fibers having sensing ends arranged in the airfoil such that the sensing ends of the fibers face the moving paper web through one or more apertures in a web-supporting panel of the airfoil. Alternatively, a traversing sensor can be mounted within the airfoil. Other embodiments include a reflectance sensor mounted adjacent an airfoil or other web support such as a through-air drying fabric or a support belt for the web.

Abstract: A process for pre-drying textile filaments after wet treatment and a device for practicing this process. The process consists essentially in applying simultaneously to a layer of wet filaments (3) passing by on a conveyor (4) with a permeable conveying surface, on the one hand, a mechanical squeeze-drying action and, on the other hand, a pressure difference by circulation of air through said layer (3).

Abstract: A dry end of a tissue machine is made shorter by close-coupling a reel-up to the drying section and supporting the web from the drying section to the reel-up by a foil or a belt such that web stability is maintained, thus allowing high-speed operation. The foil's downstream edge can form a nip with the paper roll and nip load can be controlled by controlling pivotal movement of the foil. The reel-up can include a calendering belt for calendering the web as it passes through a nip between the belt and a reel drum supported on the belt, and a rotatable reel spool on which a paper roll is wound in nipping engagement with the reel drum. Alternatively, the reel drum can be eliminated and the paper roll can be supported on the belt. A composite shaftless core for winding is also disclosed.

Abstract: This invention provides a conveyor and tunnel oven, where the conveyor is continuous, the tunnel oven is gas fired, having its ignited and heated gases passed through a tubular system, being attracted by one or more blowers, to generate by conduction infrared energy to furnish curing to products passing along the continuous conveyor. A control system is provided for controlling the operating parameters such as conveyor speed, regulating emitted gas, the velocity generated by the blowers, and the capacity of the BTUs created, during operations of the oven.

Abstract: A process and a device for pre-drying textile filaments after wet treatment. A process and a device for predrying textile filaments after wet-treatment consist essentially in applying simultaneously to a layer of wet filaments (3) passing by on a conveyor (4) with a permeable conveying surface, on the one hand, a mechanical squeeze-drying action and, on the other hand, a pressure difference by circulation of air through said layer (3).

Abstract: A method and several exemplary apparatus for capillary dewatering of foam materials. The apparatus may include felt which is applied to an exposed face of the foam material, or a double felt arrangement applied to two opposed surfaces of the foam material. The apparatus may provide a temperature differential between the two exposed surfaces of the foam material. An alternative embodiment utilizes a roll having a capillary dewatering medium. The capillary dewatering medium may be maintained at a vacuum either above or below the breakthrough vacuum of the capillaries. The disclosed apparatus and method is particularly useful for dewatering foams having relatively fine open capillaries.

Abstract: This invention relates to a method and several exemplary apparatus for capillary dewatering of foam materials. The apparatus may include felt which is applied to an exposed face of the foam material, or a double felt arrangement applied to two opposed surfaces of the foam material. The apparatus may provide a temperature differential between the two exposed surfaces of the foam material. An alternative embodiment utilizes a roll having a capillary dewatering medium. The capillary dewatering medium may be maintained at a vacuum either above or below the breakthrough vacuum of the capillaries. The disclosed apparatus and method are particularly useful for dewatering foams having relatively fine open capillaries.

Abstract: A drying system and method for an electrophotographic imaging system employing a gap drying system. The electrophotographic imaging system includes a photoconductor belt. A mechanism moves the photoconductor belt in a first direction along a transport path. A scanner mechanism is positioned along the transport path for scanning a laser beam along the photoconductor belt based on image data to form a latent image of the photoconductor belt. A development station is positioned along the transport path. The development station includes a mechanism for applying a toner to a first major surface of the photoconductor belt, the toner including a carrier liquid. A gap drying system is operably located along the transport path, wherein the gap drying system removes excess carrier liquid from the photoconductor belt. The gap drying system includes a carrier liquid (i.e.