To dye synthetic fabric at home, you must use disperse dye, such as Rit DyeMore. This type of dye has a specific chemical composition that the fabric will accept. You must also use the stovetop method to dye synthetic fabrics because heat is required to get the dye to take to the fabric.

Dye for synthetic fabrics: you must use a dye specifically formulated for synthetic fibers. The process of dyeing fabric is in part chemistry, and dyes for natural fabrics are formulated differently. Use a standard dye on polyester fabric and watch it roll off the fabric like water off the proverbial duck’s back.

Nylon can be dyed with an acid dye, just like protein fibers (such as wool and cashmere). Polyester can be dyed using a lot of heat. Crayola fabric markers can be rubbed onto paper, then ironed onto polyester.