Reactive Yellow Color Dyes HE4R is well known for its excellent fabric fixation property. Especially suitable for cellulose and cotton based fabrics, this reactive high exhaust dye (HE dye) is well known for its compatibility with different fabrics. This dye is usually used at up to 90 degree C (approx) temperature. Reactive Yellow Color Dyes HE4R ensures strong wash fastness of textile as it can form a powerful covalent bond between reactive group of dyes and polymer of fiber. Moreover, this dye readily dilutes in water.