Reactive Black Color Dye HN is basically printing dye which is compatible with fabrics like silk, woo and cotton. Well known for its exceptional printing effect, this black dye can resist fading or degradation caused by its long exposure to UV rays. Its light fastness and wash fastness deserve praise. Specially formulated electrolyte is added with this printing dye to promote its fast absorption by fabric. Excellent water solubility is undoubtedly one of its key aspects. Reactive Black Color Dye HN can be used under specific temperature range.