| 摘要 |
Textile fabric sections (6,7) consist of longitudinal (10,11) and transverse (8,9) yarns joined at their crossing points, e.g. by adhesive or welding. They are joined at their edges (12,13) by placing them so that protruding yarns (14,15) overlap. A joining yarn (16) is placed across the protruding yarns and welded into position. An Independent claim is also included for the process of making the join by traversing an ultrasonic welding tool (19) carrying a supply of joining yarn on one or both sides of the fabric. The join is arranged so that its permeability is the same as that of the main fabric. |
