Production method of PE weftless bullet-proof helmet

The present invention relates to a method for producing high-performance PE fibre composite weftless fabric bullet-proof helmet. It includes the following steps: accoridng to the form and size of required helmet cutting aramid fibre fabric, previously brushing pre-prag material, spraying demoulding agent on the mould, tightly sticking a layer of aramid fibre pre-preg material on the male mould, then successively cross-laying 20-25 layers of high-performance PE weftless fabric, closing mould and applying 5MPA pressure, escaping air, heating to 125-130 deg.C and increasing pressure to 18-20 MPA, retaining constant temp. and constant pressure for 10 min, then cooling to below 80 deg.C and opening mould so as to obtain the invented product. The pre-preg material is made up by using PVB industrial alcohol colloidal solution whose concentration is about 10%. 本发明涉及一种高性能PE纤维复合无纬布防弹头盔的生产方法，是按照所需头盔的形状、大小剪裁芳纶织布，预先涂刷预浸料，在模具上喷上脱膜剂，将一层芳纶预浸料紧贴在阳模上，然后依次交叉叠放20-25层高性能PE无纬布，合上模具并给予5MPA压力，逸出空气，升温至125-130℃，升压至18-20MPA，恒温恒压保持约10分钟，然后冷却至80℃以下开模。预浸料是浓度为10％左右由PVB工业酒精胶液制成的。