My daughter Grace had a white bathrobe made of polyester fleece that she wanted dyed another color. I looked into dyeing synthetic fabrics and found a product made by Rit called DyeMore. Synthetic fabrics don't grab onto the traditional Rit dye very well. DyeMore is supposed to be a solution for these fabrics.
Grace wanted her white robe dyed camel-colored. DyeMore in Sandstone looked like it would produce the correct color. I read and followed the online directions precisely, including using a high-heat dye technique instead of using my washing machine for dyeing.
I pre-washed the robe in warm, soapy water to remove the manufacturer's finish. Using my very largest stainless steel stockpot, I brought 3 gallons of water up to 200 degrees F, as instructed, before adding the contents of the well-shaken dye bottle. I then submerged the robe. I kept the dye bath on the stove over Medium heat the entire time, noting polyester requires longer than nylon and other synthetics. I stirred as instructed. Then a little after an hour (the recommended time by the dye manufacturer), I drained the dye bath and robe into the washer and washed it in warm soapy water and dried.
While the robe took color well, it grabbed more of the yellow and less of the tan than I had expected. It turned out more of a creamy yellow than camel. Fortunately for me, Grace loves this color as much as she says she would have loved a camel-color. There was also an issue with the threads on one of the pockets dyeing more tan than yellow. I hope that fades. I also wonder how this fleece color will launder over time. I've had many dyed items fade significantly with numerous washings. I guess we'll find out.
I was reading online that it's a gamble when dyeing synthetic fabrics. You never know how true the color will dye. While I was disappointed the color wasn't what I thought it would be, I'm relieved that this satisfied my daughter.
Have you tried dyeing synthetic fabrics? What's been your experience with using fabric dye?