Polyester has a tightly woven structure, and its primary component is polyethylene terephthalate (PET). With this structure, Polyester has better tensile strength and resistance to tearing compared to Rayon.
Using a boiling solution of detergent (0.5-1g/L) and acetic acid to treat the dyed fabric for 1-2 hours at a pH of 4 can also achieve partial color removal.