| 摘要 |
The invention relates to a multiaxial scrim of at least two layers of multifilament reinforcing yarns which are arranged in parallel in the layers and one next to the other so as to be adjacent, the layers being arranged one on top of the other. The reinforcing yarns in one layer and in neighboring layers are interconnected by sewing threads which extend in parallel to each other and are interspaced at a stitch width (w) and fixed relative each other, the sewing threads forming stitches of a stitch length (s) and the zero direction of the scrim being defined by the sewing threads. The reinforcing yarns of the layer are arranged symmetrically to the zero direction of the scrim and form, with respect to the direction in which they extend, an angle (α) with respect to the zero direction which angle is unequal 90° and unequal 0°. The invention is characterized in that the sewing threads have a linear density in the range of 10 to 35 dtex. The invention further relates to a preform produced of such a multiaxial scrim. |
