Pigments are the only truly lightfast colorants as they are chemically inactive and very stable. Pigments color simply by being there. Our pigments are aqueous dispersed, which means they are finely ground and dispersed in water. Pigments can be combined to create any color either before or after being added to the pulp. The white pulp itself acts as white color, for pastel shades you can simply add a tiny amount of pigment to the pulp.
Intense colors require more pigment.
Pigments may be mixed to create greens, oranges, before adding to the pulp, or previously colored pulps can be mixed together, just like paint. If you use Retention Aid, add a small amount to the pulp before adding pigment, and then add a little more after. In either case, the color is properly retained when the fiber is colored and the water is clear. You can pour your pulp into a strainer to remove the excess. White pigment creates opacity and will brighten the natural white of the fiber.