Tamfelt Oyj Abp

Tamfelt Filtration Oy

Heikki Rehakka

Tauno Virtanen

Kari Hyv&ouml;nen

Eino Sorri

Antti Makinen

Aimo Rautanen

The invention relates to a method of making a solid-liquid filtration cloth, a solid-liquid filtration cloth, and a filter in which the solid-liquid filtration cloth is arranged. The filter cloth () is provided with yarns () having a highly changing length and a long free run in the weave. When the length of the yarns () is allowed to shorten significantly, a filtration portion () on the side of a surface () of the cloth obtains a corrugated shape, providing the cloth with a large filtering area.

Solid-liquid filtration cloth and filtering device

A method of manufacturing a press felt, a press felt and a base fabric. The press felt comprises a base fabric with a batt fiber layer attached on at least the surface facing a paper web. The base fabric is a laminate comprising at least two separate layers. For the base fabric, one or more base fabric modules are provided, which are assembled with a butt seam into a closed loop.

Press felt structure and method of manufacturing press felt

A method of making a press felt, a press felt and a base fabric. The base fabric comprises a surface component on the surface facing the paper web to be dried and a base component below the surface component. The transverse jointing edges of the base component are provided with seam loops, by means of which the base component can be connected into a closed loop. At the first jointing edge of the base fabric the surface component extends for a predetermined distance longer than the base component and forms a seam flap that protects the seam area of the base component.

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Tampere, Finland

Heikki Rehakka