| 摘要 |
Non-woven reinforcings for glued composite sheets. between the two elements of the composite, at the moment of gluing together or heat-gluing, are directly inserted natural or synthetic yarns, by means of one or more guide combs which continuously reciprocate, so that the yarns move in a zigzag or sinusoid of variable pitch. A crenellated, simple or crossed, geometric texture is produced by giving the bars a discontinuous alternating movement. |
