Name: gedy
Message: Is it possible to dye acrylic /polyester ?

Yes, but immersion dyeing of these fibers is not a good project for someone who is new to dyeing. It is much more challenging than dyeing cotton with Procion MX type dye. You must use a large cooking pot to boil the fabric in the dye, but this pot must never again be used for cooking, because the dye is not safe for food use.

See "Dyeing Polyester with Disperse Dyes".