Certifications: ISO 9001:2015

Direct Blue 71 Powder

Direct Dyes

CI Number: 34140

Chemical Class: Trisazo Dye

Form: Powder

Shade

High-Strength Blue for Paper, Leather, and Textiles

Direct Blue 71 is a trisazo direct dye known for its high tinctorial strength and good all-around performance. It produces a neutral to slightly reddish-blue shade and is a highly economical choice for achieving deep blue and navy colours on cellulosic substrates. Its reliability and versatility make it a workhorse dye in the paper, textile, and leather industries for a wide range of colouring applications.

Applications
  • Paper Colouring: Widely used for dyeing various grades of paper and board, especially for packaging.
  • Textile Dyeing: Suitable for dyeing cotton and viscose fibres for apparel and home furnishings.
  • Leather Finishing: A standard choice for producing solid, deep blue shades on leather.

Key Benefits

  • High tinctorial strength for excellent colour value.
  • Good lightfastness and solubility.
  • Economical for achieving deep blue shades.
  • Versatile across paper, textile, and leather applications.

Technical Highlights

  • Tone: Reddish
  • Ionic Nature: Anionic
  • Appearance: Dark Blue Powder

Packaging & Availability

  • Supplied in a standardized powder form.
  • Standard Packing: 25 kg carton box.
  • Customized packaging is available upon request.