Which materials fiber are the tightest?

Question

Out of cotton, wool, and polyester which has the tightest fibers?

Answer 1

I would say that silk is the tightest, but according to your list, wet wool or polyester maybe

Answer 2

A fiber (or staple) is twisted together with other fibers to make thread, which are then woven together in warp and woof (vertical threads and horizontal threads) or twisted together with other threads to make yarn, which is knitted into a fabric. Wool fibers are shorter than cotton fibers, and polyester can in theory be endless, so polyester would be the answer to the strongest fiber, the "tightness" of the yarn or thread is called "twist rate", higher twist rates mean tighter, stronger threads, lower twist rates yield weaker softer ones. Polyester can take very high twist rates compared to the other fibers, so it normally would have the "tightest" fibers. It is often used with other fibers to make thread because of it's relative strength, allowing for stronger thread and thus stronger fabrics. Thread count describes how many threads per square inch are in the warp and woof, the higher the count the finer and smoother the fabric.

Answer 3

Probably polyester, since the fibers are stronger than natural fibers and they can be woven tighter.