Assertion: cotton's fiber | /r/HasProperty | polyester
Facets:
Source sentences:
text: In 1951, the synthetic fiber called polyester was introduced to America and marketed as the fabric that required no ironing.
text: Tencel also gets blended with other fibers that are more recognizable (e.g. cotton or polyester) to help give the finished product (like denim, for example) some of the unique properties and increase softness.
text: Fibers that the generally used to make double knits are polyester and wool.