In Japan, where a safe and secure society has been established, stab proof clothes that are suitable for police and security officers supporting are required. The current stab-protection clothing uses mainly metal plates, and there are various problems, such as weight and poor comfort. This study therefore seeks to improve the comfort of stab-resistant clothing, clarify the mechanism of stab-resistant clothing, and optimize its structure to achieve low cost. The test equipment was developed in this study. We attached a knife to the tip of an air cylinder. This device penetrates a sample, and the load and displacement can be measured. A sharp instrument such as an ice pick penetrates a sample easily because it passes between the fibers of the textile. Therefore, we suggested using a textile with a nonwoven fabric structure so that the instrument would strike the fiber. Experiments revealed that non-woven fabric has considerably higher stab resistance than other fabrics.
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