High quality Yellow 37 is offered by us that is a primary dye created by placing a dandelion or sunflower into a crafting square. Reactive dyes are most commonly used in dyeing of cellulose like cotton or flax, but also wool is dyeable with reactive dyes. Reactive dyeing is the most important method for the coloration of cellulosic fibres. Material is a fiber reactive textile dye composed of nonhazardous dye and other nonhazardous ingredients. The offered Yellow 37 is very effective and useful.