Nylon rope essentially is a tool used in certain activities such as construction, navigation, exploration, sports and communications.
The strings have been used since the prehistoric age. With the development of the rope, there have been invented a lot of ropes (knots) with various utilities.
The pulleys have been used since ancient times to redirect the force in other directions, and can be used as a mechanical advantage, allowing multiple forces applied to the fulcrum end of it. Hoists and winches (winches) are machines designed to be operated by strings.
A rope ends are called whips while her middle breast.
The synthetic fibers used in the processing industry include polypropylene ropes, nylon, polyester (eg PET, Vectran), polyethylene (eg Spectra) and aramid fiber (eg Twaron, and Kevlar Technora).
Some strings are made with blends for added strength. Cords can also produce metal fibers. The strings are made of other fibrous materials such as silk, wool and hair, but such ropes are not available in the urban market, existing in rural environments. Rayon fiber is the one used in the production of decorative cords.
The Polyamide fiber offers excellent features for strings because it combines strength and flexibility allowing the rope to absorb impact forces more efficiently than any other type of material. No rot or fleet.
They are currently the most widely used for climbing, leaving aside natural fibers for its short duration and low resistance. Those used for trekking are composed of an outer sleeve called, whose function is to protect the internal network called a soul, which is what all the work of resistance.
A climbing rope should have a strength equivalent to 1200kilograms-Force (12kN, kilonewtons) due to the equivalent of force produced by the fall of a climber falling about 80kg in extreme (Factor 2, see factor of fall in the introductory section Mountaineering )