Ascent Dye Chem offers Reactive Red 3.1 Dye. Ascent Dye Chem manufactures different types of Reactive Dyes. The Reactive Red 3.1 Dye or Reactive Red H4BN is known for accurate composition, purity and high fixation properties. The Reactive Red 3.1 Dye finds application in varied industries, which include textile dyeing, printing, painting, paper, and leather. The features of Reactive Red 3.1 Dye are high density, resistance to temperature fluctuations, free from impurities and high viscosity.