Certifications: ISO 9001:2015

Reactive Yellow 81

Category: Reactive Dyes

CI Number: 132450

Chemical Class: Azo Dye (Triazine)

Form: Powder

Shade

Lightfast Yellow for Cellulosic Fibres

Reactive Yellow 81 is a monochlorotriazine (MCT) reactive dye that produces a neutral, mid-yellow shade with good lightfastness. As a “cold brand” dye, it is versatile and can be applied through various methods, including exhaust and continuous dyeing. It is a reliable choice for achieving durable and consistent yellow shades on cotton and viscose, particularly where good resistance to fading is a key requirement for the final textile product.

Applications
  • Exhaust Dyeing: Suitable for dyeing cotton knitwear and yarn with good durability.
  • Cold-Pad-Batch (CPB) Dyeing: Provides good fixation and levelness in continuous dyeing of woven fabrics.
  • Textile Printing: Can be used in printing pastes for a stable and lightfast yellow.

Key Benefits

  • Good lightfastness for enhanced colour longevity.
  • Neutral, mid-yellow shade.
  • Versatile for a range of “cold brand” application methods.
  • Good dyeing reproducibility.

Technical Highlights

  • Reactive System: Monochlorotriazine (MCT) / Cold Brand
  • Ionic Nature: Anionic
  • Appearance: Yellow Powder

Packaging & Availability

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