Bulletproof woven fabric, and method and apparatus for weaving same

Abstract

A woven fabric enhancing bulletproof ability by efficiently absorbing kinetic energy of a bullet discharged from a gun, which is not softened or molten by heat of the bullet at high temperatures, in which non-twisted multifilament yarns are opened and the filament yarns are aligned such that the cross-sectional shape thereof is flattened as a whole and the fabric is woven while keeping fiber axes of the filaments substantially linear. Warps and wefts comprise such multifilament yarns, the warp comprising polyethylene fibers excellent in mechanical property, the weft comprising aramide fibers excellent in thermal property. In order to prevent lowering of the bulletproof ability caused by crimping or the like of the multifilament yarns and to sufficiently utilize the mechanical properties of the fiber material, multifilament yarns each having a count of 50 through 1600 deniers comprising filaments each having a count of less than 10 deniers are used as the warps and wefts. In respect of the warps, the multifilament yarns are woven by a water jet loom after being opened, sized and dried, and in respect of the wefts, the multifilament yarns are woven by a water jet loom without being subjected to the opening and sizing operation.