No.11（2016）18.Development of protective materials using a high-strength fiber non-woven fabric

Ichiro Enomoto，Risa Nagao

  In this study, we examined non-woven fabric made by a needle punch machine using high-strength fibers whose applications are expanding in various fields. Compared with the fibers of garment applications such as wool, needle breakage is known to occur even in thin, high-strength fibers when the density gets higher. Therefore, with the aim of producing non-woven fabric made of high-strength fibers with existing equipment, we managed to produce non-woven fabric made of aramid fibers with a targeted thickness of 2.0mm and density of 200g.m2 by using needles arranged with 8 barbs on one edge after changing the thickness, shape, etc. of the needles to find out the penetration strength and gripping quantity. During an incision strength test, a prototype non-woven fabric was found to have the same or better performance compared to commercial products. As an example of an aramid non-woven application, a prototype disaster prevention hood was subjected to performance tests for fire prevention certification purposes and this was found to have met the fireproofing and impact absorbing performance requirements.

Keywords
Non-woven fabric, High-strength fiber, Aramid, Mass per unit area, Disaster prevention hood

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