Abstract
With a view to explaining the mechanical properties of yarn and fabrics, an elastic theory of twisted structure has been primarily developed.
Forces and their moments required to keep a, thread in twist depend as much upon the intrinsic latent moments which the thread has in its linear state, as upon the torsional and flexural rigidities of the thread (GIp and El).
The balanced twist of a single thread or a bundle of threads can be theoretically found out in a state where twisting exerts the least resisting moments.
