Single and Plied Yarns

All yarns are originally spun as single yarns.

For certain end uses,

single yarns may be combined to produce a ply yarn.

Two-ply yarns are the most common.

These are produced by combining two single

yarns together and applying twist to them.

The twist direction used in the ply is almost always

applied in the opposite direction to the single yarn's twist.

That means most ply yarns will contain S twist.

Ply yarns are used where extra strength and evenness are required.