Which functions influence the amount of twist to use? How?

The amount of twist to use in any given yarn depends on several items:

1. the count to be spun

2. the use for which the yarn is intended

3. the staple of the cotton used

For coarse count, the twist per inch is low. As the count increases, the twist necessary increases.
The uses for which yarns are intended vary greatly and require quite different yarn characteristics.

These characteristics are very largely controlled by the amount of twist used. When soft and supply yarn is desired, these characteristics are obtained by the use of a relatively low twist. A low twist is used where a lustra yarn is desired.

For fabrics like   , where uneven or hard surface is desired, the yarn used has an exceptionally high or hard twist.

 For short stable cottons, it is necessary to use considerable twist to bind the fibres sufficiently to get a satisfactory commercial yarn. As the staple is longer, low twist is necessary to obtain the necessary strength.

Posted in: Cotton Spinning,Spinning