Cationic Fluorescent Yellow
Premium Cationic Fluorescent Yellow for Industrial Applications
Cationic Fluorescent Yellow is a high-performance fluorescent dye specifically designed for applications requiring exceptional brightness and color fastness. Our formulation delivers superior results across various industries including textiles, paper manufacturing, and specialty coatings.
Product Specifications
Key Parameters:
- Chemical Name: Cationic Fluorescent Yellow
- CAS No.: [REDACTED]
- Appearance: Yellow-orange powder
- Purity: ≥98%
- Solubility: Excellent in water and polar organic solvents
- pH Stability: 2-10
- Light Fastness: 7-8 (ISO 105-B02)
- Wash Fastness: 4-5 (ISO 105-C06)
Technical Performance Data:
| Parameter | Value | Test Method |
|---|---|---|
| Absorption Maximum | 430-450 nm | UV-Vis Spectroscopy |
| Emission Maximum | 510-530 nm | Fluorescence Spectroscopy |
| Color Strength | 120-130% (vs. standard) | Colorimetric Analysis |
| Thermal Stability | Up to 180°C | TGA Analysis |
Recommended Applications
Cationic Fluorescent Yellow excels in multiple industrial applications:
- Textile dyeing (especially for acrylic fibers)
- Paper coloration (security papers, specialty packaging)
- High-visibility safety products
- Fluorescent markers and signage
- Biological staining applications
Frequently Asked Questions About Cationic Fluorescent Yellow
What makes Cationic Fluorescent Yellow different from regular yellow dyes?
Cationic Fluorescent Yellow contains special cationic groups that provide excellent affinity to negatively charged substrates. Its unique molecular structure produces intense fluorescence under UV light, making it significantly brighter than conventional yellow dyes. The fluorescence quantum yield exceeds 0.85, which is substantially higher than standard industrial dyes.
How should Cationic Fluorescent Yellow be stored?
Cationic Fluorescent Yellow should be stored in airtight containers away from direct sunlight at temperatures between 5°C and 30°C. The storage area should be dry and well-ventilated. Under proper conditions, the dye maintains stability for at least 36 months from the manufacturing date. Always check the batch-specific storage recommendations on the product label.
What is the recommended dosage of Cationic Fluorescent Yellow for textile applications?
For acrylic fiber dyeing, we recommend using 0.5-2.5% Cationic Fluorescent Yellow based on the weight of fabric (owf). The exact amount depends on the desired shade depth and the dyeing process parameters. For optimal results, maintain a dye bath pH between 4-5 and use at 98-100°C for 45-60 minutes. Always conduct small-scale trials before full production runs.
Handling & Safety Information
While Cationic Fluorescent Yellow is classified as non-hazardous under normal conditions, we recommend following standard safety precautions:
- Wear protective gloves and eyewear when handling
- Avoid creating dust during weighing and preparation
- Ensure adequate ventilation in working areas
- Store away from food and beverages
For complete safety information, please refer to the product's Safety Data Sheet (SDS).
Quality Assurance
Every batch of Cationic Fluorescent Yellow undergoes rigorous quality control testing including:
| Test Parameter | Acceptance Criteria | Testing Frequency |
|---|---|---|
| Chromatographic Purity | ≥98% main component | Per batch |
| Moisture Content | ≤5.0% | Per batch |
| Ash Content | ≤0.5% | Per batch |
| Heavy Metals | ≤50 ppm total | Quarterly |