D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 1/10 (2006.01) D06M 10/00 (2006.01) D21F 1/14 (2006.01) D21F 7/08 (2006.01)
Patent
CA 2552009
The present invention relates to a forming fabric, for use in the sheet-forming section of a paper machine, having or consisting of a textile planar structure which consists of longitudinal and transverse yarns and in which, in order to enhance inherent stability, crossing yarns are engaged into one another at crossing points and in which yarns additionally are fused to one another, wherein the planar structure comprises intersecting first and second yarns, wherein only some of the longitudinal and/or transverse yarns are first yarns, the first yarns having the property that they absorb laser energy and can be brought, by absorbed laser energy, to melting temperature at least at the surface, and that the second yarns absorb less laser energy than the first yarns or none at all and that first and second yarns are fused to one another at at least some of their crossing points. An advantage consists in the fact that the dimensional stability can be individually adapted to particular requirements by correspondingly varying the number of first yarns as well as the number of intersection points at which welding or fusing is performed.
Best Walter
Molls Christian
Wales Paul
Heimbach Gmbh & Co. Kg
Smart & Biggar
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