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__NOTOC__ Ripstop fabrics are woven fabrics, often made of nylon, using a special reinforcing technique that makes them resistant to tearing and ripping. During weaving, (thick) reinforcement threads are interwoven at regular intervals in a crosshatch pattern. The intervals are typically 5 to 8 millimeters (0.2 to 0.3 in). Thin and lightweight ripstop fabrics have a 3-dimensional structure due to the thicker threads being interwoven in thinner cloth. Older lightweight ripstop fabrics display the thicker interlocking thread patterns in the material quite prominently, but more modern weaving techniques make the ripstop threads less obvious. A similar effect can be achieved by weaving two or three fine yarns together at smaller intervals.〔Fairchild's Dictionary of Textiles, 7th edition, pg. 474〕 Advantages of ripstop are the favourable strength-to-weight ratio and that small tears can not easily spread. Fibers used to make ripstop include cotton, silk, polyester, and polypropylene, with nylon content limited to the crosshatched threads that make it tear-resistant. ==Applications== Ripstop fabrics are used in yacht sails and spinnakers, hot air balloons, kites, parachutes, remote control hovercrafts, camping equipment such as lightweight tents and sleeping bags, swags, flags, banners, and other applications requiring a strong lightweight fabric. Ripstop reinforcement are incorporated into heavier fabrics requiring extreme durability, such as those used in Battle Dress Uniforms, Nomex protective clothing for firefighters and other workwear, Brazilian Jiu Jitsu uniforms, outdoor and sports clothing, backpacks, and luggage bags. Self-adhesive ripstop cloth-patches are used to repair both rips and tears in other fabrics. Ejector seat parachutes made with ripstop are woven with an elastic-like fabric so that they stretch to allow more air to pass through at high speed. Then as the ejector seat slows, the weave closes and acts like a conventional parachute. This allows the pilot seat to slow gently, avoiding compression that could result in spinal injury. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ripstop」の詳細全文を読む スポンサード リンク
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