Twaron textiles

Twaron textiles (before Fiber X) are one of the most popular brands of ballistic materials developed by Teijin Aramid using p-phenylene terephthalamide. At the... 

Fibres are, as a result of the spinning process, molecularly oriented, and they have, therefore, a 2 to 3 times higher stiffness than the non-oriented polymer (e.g. polyamide and polyester textile fibres). With the highest attainable orientation, such as in aromatic polyamides (Twaron and Kevlar), and in the PE-fibre (Dyneema) the stiffness can be a hundred times higher than the one in the unoriented condition ... 

Aramid, or aromatic polyamides, were first introduced in conunercial applications in the early 1960s, with a meta-aramid fiber produced by DuPont under the trade name Nomex. This fiber, which handles similarly to normal textile apparel fibers, is characterized by its excellent resistance to heat, as it neither melts nor ignites in normal levels of oxygen. It is used extensively in the production of protective apparel, air filtration, and thermal and electrical insulation. A para-aramid fiber with much higher tenacity and elastic modulus was also developed in the 1960s-1970s by DuPont, which was the first company to introduce a para-aramid fiber, Kevlar, in 1973. A similar fiber called Twaron with roughly the same chemical structure was introduced by Akzo in 1978. 

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