If you take two yarns and spin them together, you'll make what's called a ply yarn. "That makes a stronger yarn," said Kozen, and sheets can be made with single-, double-, triple ply yarns.

In the first two months of 2025, rayon yarn export of China was 12.887kt, a year-on-year decrease of 2%, hitting 8-year low. Among this, the export volume of single yarn was 9.205kt, largely flat year ...