Ranbar Fluorescent Red 4B – Fluorescent Dyes for Plastics
Ranbar 4B Red Fluorescent Dye is a high-performance pyridine anthrone-type fluorescent dye with a color index of Solvent Red 149. The dye exhibits a vibrant blue-red hue(rose red), high transparency, strong tinting strength, and excellent resistance to light, migration, solvents, and thermal stability. Widely used in coloring applications for various plastic products.
- Name: Fluorescent Red Dye
- Index No.: Solvent Red 149
- Model: Fluorescent Red 4B
- CAS No.: 21295-57-8/71902-18-6
- EINECS No.: 244-320-0
- Molecular formula: C23H22N2O2
- Molecular weight: 358.43
- Chemical structure: Pyridine anthrone
- Hue: brilliant blue red （rose red）
- Appearance and properties: red powder
Performance parameters:
| Coloring intensity | 100±1% |
| Melting point | 267°C |
| Thermal decomposition | ＞300°C |
| Density | 1.35g/cm3 |
| Bulk density | 0.50g/cm3 |
| PH value | 7.0-8.0 |
| Water content | ≤0.5% |
| Lightfastness | 7-8 grade |
| Temperature resistance | 280-300℃ |
Product advantages:
- Excellent thermal stability.
- Bright color, high fluorescence.
- High color intensity, strong tinting power.
- Good light resistance and weather resistance.
- Good migration resistance and solvent resistance.
- Suitable for various rigid plastic products.
Product Application:
Ranbar 4B Red Fluorescent Dye showcases a brilliant fluorescent effect in sunlight and is primarily used for coloring various rigid plastics and thermoplastic resins. It meets the coloring needs of engineering plastics and synthetic fibers, and is recommended for use in PA, PS, SAN, rigid PVC, ABS, AS, PMMA, PC, PET, PBT, PA6, PA66, polyester fibers, and more.
Ranbar 4B Red Fluorescent Dye showcases a brilliant fluorescent effect in sunlight and is primarily used for coloring various rigid plastics and thermoplastic resins. It meets the coloring needs of engineering plastics and synthetic fibers, and is recommended for use in PA, PS, SAN, rigid PVC, ABS, AS, PMMA, PC, PET, PBT, PA6, PA66, polyester fibers, and more.
| Model | Color Index | Temperature Resistance | Application Area | Lightfastness | Shade |
| Fluorescent Red 4B | S.R.149 | 280-300℃ | Nylon, Hard Plastic | 5 | Blue Red |
| Fluorescent Red 6B | – | 280-300℃ | Hard Plastic | 8 | Yellow Red |
| Fluorescent Red BK | S.R.196 | 300-350℃ | Hard Plastic | 5 | Yellow Red+1 |
| Fluorescent Orange GG | S.O.63 | 280-300℃ | Nylon, Hard Plastic | 5 | Red Orange |
| Fluorescent Orange 3G | – | 350℃ PA66 30%GF | PA66, ABS, PA6, Spinning | 7-8 | Yellow Orange |
| Fluorescent Yellow 2G | – | 350℃ PA66 30%GF | PA66, ABS, PA6, Spinning | 8 | Red Yellow |
| Fluorescent Yellow 4G | – | 350℃ PA66 30%GF | PA66, ABS, PA6, Spinning | 5 | Green Yellow |
| Fluorescent Yellow 6G | – | 300℃ | PET, PC Spinning, etc. | 8 | Green Yellow+1 |
| Fluorescent Yellow 8G | S.G.5 | 280-300℃ | Hard Plastic, PVC-R, PS, ABS, PMMA, PC, PET, PBT | 5 | Green Yellow+2 |
| Note: Fluorescent dyes for high-performance plastic industry use. Possesses excellent coloring power, high purity, and vibrant colors. Other application areas include polyester spinning and ink printing. | |||||
