Acid Brown 425

Acid Brown 425

Acid Dyes

CI Number: 18530

Chemical Class: Azo Dye

Form: Powder

Shade

A Brown for Nylon

Acid Brown 425 is a acid dye that produces a neutral to reddish-brown shade with excellent fastness. It is engineered for demanding applications on polyamide fibres where superior lightfastness and wet fastness are critical. Its robust nature makes it an ideal choice for automotive textiles, commercial carpets, and durable apparel, ensuring long-lasting colour that resists fading and bleeding.

Applications
  • Nylon Dyeing: A top choice for automotive upholstery and carpeting due to its high lightfastness.
  • Wool Dyeing: Provides a deep, durable brown for high-quality wool textiles and yarns.
  • Leather Finishing: Delivers a uniform and highly durable brown shade for premium leather.

Key Benefits

  • Excellent lightfastness and wet fastness properties.
  • Good build-up for achieving deep, saturated shades.
  • High stability in various dyeing processes.
  • Consistent and reproducible color results.

Technical Highlights

  • Dye Type: Acid Dye.
  • Lightfastness: Excellent (7).
  • Appearance: Dark brown powder.
  • Ionic Nature: Anionic.

Packaging & Availability

  • Supplied in a standardized powder form.
  • Standard Packing: In 25 Kgs HDPE Bags or Fiber drum with liner.
  • Customized packaging is available upon request.