How to use Rit Dye
1. Choose the Right Dye For Your Fabric. If the fabric you plan to dye is a natural fabric (such as cotton, linen silk, ramie or wool) or is nylon or rayon, then use Rit All-Purpose Dye. If the fabric you plan to dye contains more than 35% polyester acrylic or acetate, then use Rit DyeMore for Synthetics.
2. Use the Stovetop Method. Our dyes love hot water. It relaxes the fabric so that it can absorb the dye. This dyeing method enables you to maintain a very hot dyebath for the duration of your dyeing so you can get the darkest color possible.
3. Double the Standard Dye Quantity. The more dye, the deeper the color. If you are dyeing a pair of pants, pour the whole bottle of dye into the dyebath (or use two packages of powder dye). If you are dyeing more than one pair, use multiple bottles.
4. Prewash Item. This helps to remove any finishes that may interfere with dye absorption.
5. Add Salt or Vinegar (If Dyeing Cotton, Linen, Silk, Wool, Nylon Rayon and Ramie). To enhance the color: (1) add one cup of salt when dyeing fabrics containing cotton, rayon, ramie or linen; (2) add one cup of vinegar when dyeing fabrics containing nylon, silk or wool.
6. Double Time in Dyebath. Allow item to remain in the dyebath for 30 to 60 minutes, stirring constantly. The item will appear darker when wet and will dry lighter.
7. Use ColorStay Dye Fixative After Dyeing (Cotton, Linen, Silk, Wool and Ramie Only). This is the ultimate secret weapon. Soaking or spraying your dyed item with ColorStay Dye Fixative after dyeing (but before washing) will enhance your item’s color and reduce bleeding.
8. If Dyeing Non-White Garments With Black or Graphite, Counteract the Base Color With an Additional Color. Our dyes are created based on the premise that they will dye white or light colored fabric the color of the dye. So when our Black or Graphite dye is applied to a colored fabric, the original color of the fabric may still show through. To address this, we recommend adding an additional color (per our charts below) to counteract the undertones of the existing color. As an example, if you were dyeing red fabric, we would recommend adding some green dye to your dyebath. Since mixing red and green makes black, adding a green dye to your dyebath will counteract the red on the fabric. If Dyeing Cotton, Linen Silk, Wool, Ramie, Rayon or Nylon, use Rit All-Purpose Dye. If Dyeing Fabric Containing More than 35% Polyester, Acrylic or Acetate, use Rit DyeMore for Synthetics
Color tabel: https://www.ritdye.com/color-library/color-formulas