Reactive Dye Black 5
CAS Number: 17095-24-8
Reactive Dye Black 5 is the world's most widely used reactive black dye for cotton and cellulosic fibers, offering deep jet-black shades with outstanding all-round fastness properties. Based on the diazo structure, it provides excellent wash fastness and is the industry standard for exhaust dyeing of denim, casual wear, and home textiles. Compatible with standard alkali-salt exhaust dyeing processes.
Technical Specifications
| appearance | Black powder |
| moisture (%) | ≤5 |
| strength (%) | 100±2 |
| fixation rate (%) | ≥70 |
| active content (%) | ≥98 |
| solubility (g/L, 60°C) | ≥100 |
Applications
- Exhaust dyeing of denim and casual cotton garments
- Continuous dyeing of cotton woven fabrics for deep black
- Cold pad-batch dyeing for deep shade cotton knits
- Dyeing of viscose and Tencel (lyocell) for fashion garments
- Reactive printing on cotton to achieve solid black areas
Key Features
- Industry-standard deep black reactive dye with global supply reliability
- Excellent wash fastness ≥4 and rub fastness ≥3-4 (ISO standards)
- High solubility enabling concentrated dye bath preparation
- Proven compatibility with soaping agents for efficient unfixed dye removal
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CAS Number
17095-24-8
Category
Textile Dyeing AuxiliariesAvailability
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