Parachute Fabric: A parachute is a device, used to slow the motion of an object through an atmosphere by creating drag, or in case of ram-air parachutes, aerodynamic lift. Parachutes are usually made out of light, strong cloth, originally silk, most commonly nylon. Raw Materials:- Parachute canopies were first made of canvas. Silk proved to be more practical because it was thin, lightweight, strong, easy to pack, fire resistant, and springy. During World War II, the United States was unable to import silk from Japan, and parachute manufacturers began using nylon fabric. The material turned out to be superior to silk because it was more elastic, more resistant to mildew, and less expensive. Other fabrics, such as Dacron and Kevlar, have recently been used for parachute canopies, but nylon remains the most popular material. More specifically, parachutes are made of ripstop nylon that is woven with a double or extra-thick thread at regular intervals, creating a pattern of small squares. This structure keeps small tears from spreading. --> One parachute manufacturing plant lists its monthly materials use as exceeding 400,000 sq yd (330,000 m 2 ) of fabric, 500,000 yd (455 km) of tape and webbing, 2.3 million yd (2,000 km) of cord, and 3,000 lb (1,400 kg) of thread. Read more: textilelearner.blogspot.in/2013/07/properties-of-parachute-fabric-and-its.
Posted on: Fri, 03 Oct 2014 05:26:58 +0000
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