Pigment or Reactive - Which Dye is Right for Your Project?
/To properly differentiate between pigment dyes and reactive dyes, we must take a quick trip back to high school chemistry, as a chemical reaction is the major distinction between the two dyes. And no, unfortunately we are not pouring a beaker of bright liquid into another and causing an explosion. Maybe next time.
Let’s Talk Science
Reactive dyes do just that- react. The reactive dye particles form a covalent bond with the fabric and essentially stain it the desired color. Once the bond is formed, you have one single molecule.
Pigment dyes on the other hand, are insoluble molecules that sit on top of the fiber. No chemical reaction takes place. The pigment adheres to the fabric with the help of binders. This can happen when the ink dries but often requires light or heat curing to ensure colorfastness before washing.
Back to the Real World
While yes, science is great, what does this all mean for you?
Each have certain characteristics that can help you choose which process is right for your project.
Pigment Dyes
- Give the appearance of an aged, lived-in garment from day one
- Produce products with extremely vibrant colors
- Are typically used on polyester and polyester/cotton blends
- Require an additional silicone wash to be soft
If you want a garment with a faded look, pigment dyes would be a better choice.
Reactive dyes
- Provide a more solid consistent color
- Are less likely to fade or crock (transfer color to another material when rubbed against)
- Are typically used on cotton, silk, rayon, linen, lyocell, and hemp
If you want complete uniformity when the consumer purchases the garment and years later when it comes out of the wash, then reactive dyes would work best.
There’s a lot to consider when choosing the right dye. Need a second opinion on what your project may require? Give us a shout and let our 10 years of experience in the industry guide you.
