PRO MX Fiber Reactive Dyes: (Procion) dye cellulose fibers - plant based fibers like cotton, linen, ramie, hemp, viscose rayon, bamboo, jute, paper, wood, basket reed, even silk at room temperature. With a different procedure these dyes work on protein fibers (wool). They are completely intermixable and have excellent wash and light fastness.
PRO Sabracron F Reactive Dyes: These dyes work similar to the PRO MX Reactive Dyes, but work at a slightly warmer temperature, 105 ° - 120° F. They also dye protein fibers (wool and silk) using acid at a boil or with steam.
Vat Dyes: A unique class of dye, similar to Indigo, which go through a process of reduction to get onto the fiber and then oxidation, to become fixed on the fiber. Vat dyes lend themselves beautifully to bound resist techniques, like shibori, because they discharge the ground color and deposit a new color all in one step. It's just like magic!