FIELD: textile; paper.
SUBSTANCE: crossed fibers are connected to each other in crosspoints and additionally alloyed to each other. Flat structure contains crossing first and second fibers. First fibers have property to absorb laser energy. Under absorbed laser energy its temperature can be developed till melting temperature at least on surface. Second fibers absorb less laser energy then first fibers or do not absorb at all laser energy. Only some of longitudinal and/or transversal fibers correspond first fibers. First and second fibers are alloyed to each other at least in several crosspoints.
EFFECT: improvement of grid stability.
36 cl, 1 dwg
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