Rit DyeMore Synthetic Fiber Dye Product Guide

With Rit DyeMore Synthetic Fiber Dye you can now dye polyester, nylon, acrylic, rayon, and poly/cotton blends. It comes in a variety of colors that you can mix to get an infinite amount of colors.

The All-Purpose Rit Dye also works on rayon and nylon, along with cotton, linen, silk, and wool. Read our article on fabric dye for more information about the dyes we carry. Browse all Rit dyes here.

Fabrics with different fiber contents will not dye the same. We tried dyeing 23 different samples of fabric to see how each takes the dye, including polyester, polyester blends, nylon, acrylic, rayon, and vinyl.

See the video and written instructions below, and don’t miss our detailed assessment of how each type of fabric dyed at the end of this article.

How to Use Rit DyeMore Synthetic Dye

Dry clean only and fabrics that can’t withstand heat shouldn’t be dyed, but if you want to try, test out a small piece first. Some non-fabric plastic items may be able to be dyed, like buttons, beads, and legos. For heat sensitive items, turn the stove off before or a couple minutes after adding the plastic object to the dye bath and keep an eye out if it starts to melt.

Synthetic fibers need lots of heat when dyed, so the stovetop method is the best.

Pre-wash the fabric to remove any finishes with warm, soapy water so the dye will absorb better.

Wear gloves whenever handling the dye and cover any surfaces that need protection before starting.

Fill a pot with enough water so the material can move freely. Heat the water until it’s simmering or almost boiling.

Shake the dye well and add it to the water.

One bottle will dye up to 2 pounds of dry fabric. To get dark or saturated colors, double the amount of dye, especially with polyester. This is a small amount of fabric (twenty-three 4″ x 4″ samples of fabric), but we’re using a full bottle to get a saturated color.

Add a squirt of dishwashing soap and stir well. This helps the fabric to dye evenly.

You can test out the color by dipping a piece of paper towel in the dye bath. Add more dye or more water if needed.

Put the fabric in the dye bath. The material should already be wet.

Stir continuously for about 30 minutes with the water on a low simmer, about 180° F. Make sure the dye is getting to all parts of the fabric so it won’t be splotchy. Polyester should remain in the dye bath for at least 30 minutes, but other materials may come out sooner. Some nylon fabrics dye very quickly and darkly.

Some polyester could need closer to an hour. It’s a little tricky because the polyester may look dark enough when taken out of the dye but might not retain the color when rinsed. If this happens, the fabric can be dyed again for a longer period of time.

When your fabric reaches your desired color or after at least 30 minutes for polyester fabric, remove from the dye bath. Keep in mind, fabric looks darker when wet.

Rinse in a stainless steel sink with warm water, then cooler water, until it runs clear. Wash in warm, soapy water, rinse, and air dry.

The Results

The fabrics ended up dyeing a range of colors from lilac to almost black. These differences are mainly due to the different fiber contents. Here are our observations.

100% Polyester

The gabardine dyed nicely to a light to medium purple, as did the chiffon.

The mirror organza dyed lighter, but it’s also the most sheer of the polyester fabric. The surface remained highly reflective and shiny.

The satin, also a medium purple, retained its beautiful shine.

The velvet dyed the darkest of the 100% polyester fabric. The pile remained soft with a nice luster.

The Minky dyed a medium purple and also kept its soft feel. This Minky has a raised dot pattern that started to disappear due to the high temperatures.

The fleece and felt dyed a light purple. If we had left them in the dye past 30 minutes, they may have retained the color better. Before they were rinsed, they appeared more of a medium purple, but some of the color washed out because it takes longer for these fabric to fully absorb the color. They were the thickest fabrics.

Polyester Blends

This particular broadcloth is 80% poly and 20% cotton. Notice how it dyed lighter than the poplin, which is 65% polyester and 35% cotton. The higher the polyester percentage in poly/cotton blends, the lighter it will dye. The broadcloth and poplin dyed evenly, but not completely solidly. There are slight variations in the fibers.

The polyester spandex is 84% polyester and 16% spandex. It dyed a medium color.

This faux fur is 70% acrylic and 30% polyester. It dyed a saturated medium purple, but in a slightly warmer tone. The fur is dry clean only, so it did shrink and become a little misshapen in the hot water. It also lost some of its softness. Other faux furs will likely dye differently.

100% Nylon

On the glitz sequin fabric, the sequins dyed a lighter purple, while the backing became darker. It took a while for the sequins to dye even though they’re nylon.

The ripstop dyed a dark purple, but the edges curled tightly when hot, so it didn’t dye evenly. The water repellent coating on the back of the ripstop dyed lighter.

The crystal organza dyed a more muted purple and seemed to lose some of its sparkle.

Nylon Blends

The power mesh is 90% nylon and 10% spandex, but unlike the stretch lace, it dyed a nice medium purple.

The dye created an interesting effect on the silver tissue lame. It’s 51% metallic and 49% nylon. The metallic fiber dyed a light purple, while the nylon fibers became a dark purple, giving it a striated look.

The stretch lace is 95% nylon and 5% spandex. It dyed very quickly and became a dark plum purple. If taken out sooner, it may have been lighter and brighter.

100% Acrylic

The Sunbrella canvas outdoor fabric dyed a medium purple that’s quite a bit warmer in color and more saturated than the rest. The faux fur has a lot of acrylic in it and similarly dyed a warm, saturated purple, though darker than the Sunbrella.

100% Rayon

The color of the rayon challis fabric turned out to be a dark purple that’s slightly bluer than others.

100% Polyvinyl Chloride (Vinyl)

We threw in a few vinyls not knowing if they would dye or not because vinyl isn’t listed in the materials Rit DyeMore will dye.

The upholstery vinyl dyed a beautiful dark purple while retaining its gloss.

The oilcloth turned an extremely dark purple that’s almost black.

The clear vinyl appears black, but if held up to the light, you can still see the purple. With both the oilcloth and clear vinyl, if left in the dye a short amount of time, the color may have turned out lighter.

When stored with some other clear vinyl, the dyed sample started to transfer the purple color to the undyed vinyl so be aware that color transfer could happen with vinyl materials.

Of course there are many other fabrics that Rit DyeMore will work on, but we hope this sampling is helpful. As with other dyes, it’s hard to know exactly how the color will turn out because there’s many variables like amount of dye, time in the dye bath, the temperature, and the type of material. Even the fabrics that had the same type of synthetic fibers dyed very differently. We suggest testing small pieces of fabric, if possible, to figure out what combination of variables will produce the results you want.

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