Certifications: ISO 9001:2015
Reactive Blue 221
Category: Reactive Dyes
CI Number: Mixture
Chemical Class: Azo/Formazan Dye (Metal Complex)
Form: Powder
Brilliant Greenish-Blue Bifunctional Dye
Reactive Blue 221 is a high-performance, bifunctional reactive dye that produces a brilliant, clear, greenish-blue shade. It is often a metal-complex dye based on an azo or formazan chromophore, engineered for high fixation and excellent brightness. Its brilliant shade and very good all-around fastness properties make it a popular choice for achieving vibrant, durable turquoise and bright blue colours on all types of cellulosic fibres.
Applications- Exhaust Dyeing: Ideal for high-temperature exhaust dyeing where high fixation and bright shades are needed.
- Continuous Dyeing: Suitable for pad-steam and other continuous methods for woven fabrics.
- Textile Printing: Provides a stable and brilliant blue for high-quality printing.
Key Benefits
- Brilliant, clear greenish-blue shade.
- Bifunctional for a highly stable dye-fibre bond.
- High fixation rate for efficient dyeing.
- Very good lightfastness and wash fastness.
Technical Highlights
- Dye Type: High-Exhaustion (HE) / Bifunctional
- Tone: Greenish
- Appearance: Blue Powder
Packaging & Availability
- Supplied in a standardized powder form.
- Standard Packing: 25 kg carton box.
- Customized packaging is available upon request.
