Abstract
A previous article has shown that rapid rotations of a braiding machine increases the number of its revolutions, produce variations in yarn tension during braiding, reduce the tensile strength of braids and make uneven stitches.Measuring yarn tension with a strainmeter and an electro magnetic oscillograph has shown that yarn tension increases as the number of revolutions increases. The maximum yarn tension during braiding is unexpectedly large. Yarn tension is large when the tension weight goes up, and is small when it goes down.A method to reduce yarn tension without reducing the strength of braids, even if the number of revolutions is increased, is studied here.
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