Cationic dyes are a specialized class of dyestuffs primarily used for coloring acrylic fibers, modified nylons, and certain synthetic materials. These dyes are known for their excellent color fastness, vibrant shades, and strong affinity to negatively charged fibers.
Key Features of Our Cationic Dye
- High purity level (minimum 98%)
- Excellent solubility in water
- Superior light fastness (Grade 6-7)
- Outstanding wash fastness (Grade 4-5)
- Wide range of available colors (over 50 standard shades)
- Compatible with most textile processing methods
Technical Specifications
| Parameter | Specification |
|---|---|
| Appearance | Powder or granule |
| Moisture Content | ≤ 5% |
| pH Value | 6.0 - 7.5 (1% solution) |
| Particle Size | 90% passing 80 mesh |
| Dyeing Temperature | 85-100°C |
| Shelf Life | 24 months when stored properly |
Popular Applications
- Acrylic fiber dyeing
- Paper coloration
- Inkjet printing inks
- Leather finishing
- Specialty coatings
Cationic Dye FAQ
Q: What makes cationic dye different from other dye types?
A: Cationic dye carries a positive charge in solution, which allows it to bond strongly with negatively charged fibers like acrylic. This results in superior colorfastness compared to many other dye types, particularly for synthetic fibers.
Q: How should cationic dye be stored for maximum shelf life?
A: Cationic dye should be stored in a cool, dry place away from direct sunlight. Keep containers tightly sealed to prevent moisture absorption. Ideal storage temperature is between 5-30°C with relative humidity below 65%.
Q: Can cationic dye be mixed with other dye types?
A: While cationic dye can be physically mixed with other dyes, it's generally not recommended to combine them in the same dye bath due to potential chemical interactions. For best results, cationic dye should be used separately or in specially formulated combinations designed for compatibility.
Performance Characteristics
| Property | Test Method | Result |
|---|---|---|
| Color Strength | AATCC 182 | 100 ± 3% |
| Migration | ISO 105-X09 | ≤ Grade 4 |
| Perspiration Fastness | ISO 105-E04 | Grade 4-5 |
| Rubbing Fastness | ISO 105-X12 | Dry: Grade 4-5, Wet: Grade 3-4 |
| Thermal Migration | M&S C7 | ≤ Grade 4 |
Safety Information
- Wear protective gloves and eyewear when handling
- Avoid inhalation of dust
- Store away from oxidizing agents
- Follow local regulations for disposal
- Not classified as hazardous under OSHA Hazard Communication Standard
Additional Cationic Dye Information
Our cationic dye products comply with all major international standards including REACH, OEKO-TEX®, and ZDHC requirements. We offer both standard and custom formulations to meet specific customer needs, with options for different particle sizes, solubility characteristics, and application-specific performance enhancements.