| 摘要 |
A helmet, especially an anti-ballistic protective helmet, contains flat textile structures of anti-ballistic fibres as protective layers. Here, the layers, which are arranged on the side away from the substrate, consist of multiaxial knitted fabric, while on the said towards the substrate they consist of woven fabric. The proportion of multi-axial knitted fabric in the whole of the reinforcing layers is preferably 60 to 80 %. The anti-ballistic fibres are aramide fibres, gel-spun polyethylene fibres, glass fibres, metal fibres of mixtures thereof. Aramid fibres are preferred.
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