No. By definition if something is 100% x it can not contain any percentage at all of substance y. 100% polyester does not contain any phthalate as plasticizer or as another additive. Phthalates are esters in their own right.
Some clothes are made from 100 percent polyester.
how to wash 100 polyester blanket that shedding on everything
no
Polyester IS washable, look at the garment washing instructions on the care label
In a fabric comparison test, 100-percent polyester provided better UV protection than both cotton and a polyester blend. When there are UV warnings, it is best to avoid wearing cotton fabrics.
what does 100% polyester mean
One way to permanently stretch a 100 percent polyester shirt is to wash the shirt and then put it on while it is wet. Allow the shirt to dry while wearing it to help stretch the materiel.
A recent experience attempting to dye 100% polyester product was a no-go. However I did change the colour by using artists acrylic paints to do the job. It worked and does not wash out!!
If you leave it in the sun, or wash it with harsh detergent, yes, it will fade.
100% cotton should mean that - just be sure that the thread used for stitching is not polyester.
40%
Yes, often times it is, but you need to check the label. Sometimes it's a cotton polyester blend.