Theory 072/Textiles & Fibres
Yarn Peaks at a Twist
The claim
Yarn strength peaks at an optimum twist multiplier and falls both thinner and thicker.
01The mechanism
Low twist allows fibre slip; high twist inclines fibres to the axis and reduces their contribution.
02Predictions
- P1Strength should peak at a twist multiplier.
- P2Both extremes should be weaker.
03Refutation
Monotonic strength with twist would remove the optimum.