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1. (WO2013160194) STABILIZED WOVEN SEAM FOR FLAT-WEAVE ENDLESS FABRIC BELTS

Pub. No.:    WO/2013/160194    International Application No.:    PCT/EP2013/058121
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Fri Apr 19 01:59:59 CEST 2013
IPC: D21F 1/00
Applicants: VOITH PATENT GMBH
Inventors: STRAUB, Michael
EBERHARDT, Robert
Title: STABILIZED WOVEN SEAM FOR FLAT-WEAVE ENDLESS FABRIC BELTS
Abstract:
The invention relates to an endless fabric belt (10) for use in a paper, cardboard or tissue machine having machine-direction threads (1) which cross cross-machine-direction threads (2), wherein at least part of the machine-direction threads (1) and/or cross-machine-direction threads (2) are formed by yarns which are composed substantially of a thermoplastic polymer material which is transparent for light of a wavelength or a wavelength range, wherein the fabric belt is produced in a flat-weave manner with two front-side ends (3, 4) and is subsequently made endless by the fact that end sections of the machine-direction threads (1) of one front-side end and end sections of the machine-direction threads of the other front-side end of the fabric belt are in each case brought together in pairs with the formation of junction points (18) and are woven with cross-machine-direction threads (2) in order to form a seam region (8), wherein at least part of the yarns are connected to one another in a material-to-material manner in the seam region on account of a material which absorbs the light at the wavelength and is arranged at yarn contact points and on account of the action of the light at the yarn contact points. The invention is characterized in that, in the seam region, a plurality of strip-shaped fabric sections (19, 20) which are spaced apart from one another are formed, in which fabric sections (19, 20) the junction points and the yarn contact points which are connected to one another in a material-to-material manner are arranged, and in each case one strip-shaped fabric section (21) without junction points is formed between two immediately adjacent fabric sections (19, 20) which comprise the junction points.