THE PROCESS OF GETTING A GOOD ROPE:
If there is one thing you have to trust when you are a climber it is the rope you choose to bring. This post will therefor give you some insight into how the process behind making a rope really is. Now mind you these are some of the tips I found, and there might be many others out there.
Nylon filaments are batched, and twisted into strands of yarn. The number of stands and the tightness /direction of the twists for both the core and the sheath help shape the rope´s dynamic properties.
To minimize shrinkage, and set the dynamic properties of the nylon. Yarns are conditioned in a large pressure cooker with precisely calibrated temperature and humidity. Conditioning also cures chemical treatments added to the fibers.
ROPE: BEAL and Mammut
The conditioned core yarns are twisted into bundles, and the bundles are combined to form the rope´s core. Sheath yarns are dyed and then wound onto bob – pins to prepare it for braiding.
Bobbins of sheath strands in various colours are mounted to the braiding machine. As the groups of bobbins jiggle back and forth, and rotate around the machine the sheath fibers are braided around the core under specific angles and tension.
INSPECT AND PACKAGE:
One run through the braiding machine yields more than 1000 meters of rope. The new rope is then cut to consumer length about 60 – 80 meters – inspected and packaged.
Tips: First seen in Climbing Magazine.