Importance

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Abstract

The invention relates to a double layered paper making forming fabric with a coarse structured running side and a fine structured paper side comprising a longitudinal thread set (yarns in machine direction) and at least two transverse thread sets (yarns in cross-machine direction), which are interwoven in an at least six shaft pattern repeat, so that a transverse thread set forms on the running side a preceding plane of wear and the remaining transverse threads or transverse thread sets are arranged on the paper side or paper making surface and may differ from each other with respect to the diameter material and/or length of the floatings. For modern, quick and efficient but also more sensitive printing processes papers of the highest qualities are required. An optimization of the above called quality features has however not been achieved as yet with double layered forming fabrics. The double layered paper making forming fabric is therefore to be developed further in such a way that this paper making forming fabric satisfies highest requirements with respect to fine meshes on the paper side, coarse meshes on the running side and wear resistance. This object is achieved by the fact that at least parts of the transverse threads on the running side from multiple threads each consisting of at least two closely adjacent or contiguous threads which are bound by different longitudinal threads.

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First Claim