| abstract |
(57) Summary The fabric (50) comprises a number of filamentous fiber bundles (51) extending between and intersecting at the joints. These fiber bundles and joints define a pattern of openings (53), which are usually square. Each fiber bundle includes densified and densified fiber segments. In these fiber bundles, a large number of fiber segments are parallel to each other. As can be seen from the figure, approximately in the middle of the fiber bundle between adjacent joints, more entangled regions (54) in which the fibers are wound in a spiral around the periphery of the parallel densified fiber segment. There is. As can be seen from the figure, the fiber bundles extend in opposite directions from this circumferentially intertwined area. This arrangement will be referred to below as the "bow" or "bow region". |