Ranbar Blue SR5028-3 Lake blue water soluble phthalocyanine dyes
- Color Index: Direct Blue 86
- CAS Registry Number: 1330-38-7
- EINECS No.: 215-537-8
- Molecular Formula: C32H14CuN8Na2O6S2
- Molecular Weight: 780.16
- Chemical Structure: Phthalocyanine
- Dye Type: Direct Dyes (Water-Soluble Dyes)
- Solubility: Easily soluble in water
- Color Hue: Greenish Blue (Lake Blue)
| Appearance and properties | Gray-blue to blue powder |
| Coloring intensity | 100±3% |
| Fineness (180-micron sieve residue) | ≤5.0% |
| Solubility (80℃) | 60g/L |
| Drying weight loss | 0.9-10% |
| Insoluble matter content | 0.25% |
| Water content | 3.25% |
| Lightfastness | 6-7 grade |
Ranbar Blue SR5028-3 is a greenish-blue direct dye based on a phthalocyanine structure with a color index of Direct Blue 86. It is characterized by its vibrant color, strong dyeing power, good lightfastness, and excellent solubility. It is important to note that this dye exhibits relatively poor adsorption when dyeing cellulose fibers and is slightly sensitive to hard water with higher mineral content.
Ranbar Blue SR5028-3 direct dye forms a lake blue solution when dissolved in water. In concentrated sulfuric acid, it appears yellow-green, turning into a greenish-blue color upon dilution, with the formation of a bluish-green precipitate. It partially dissolves in concentrated nitric acid, displaying a light yellow-green color, while it remains insoluble in concentrated alkali. The dye dissolves in concentrated ammonia solution, resulting in a lake blue color.
Ranbar Blue SR5028-3 water-soluble phthalocyanine dyestuff is mainly used for dyeing and direct printing of cotton, man-made viscose fiber, and other fiber fabrics, it can be used for dyeing silk and silk fabrics, and also for dyeing leather, paper, disinfection wash, cleaning agent, etc. It can also be used to produce peacock blue lake organic pigment.
Ranbar Blue SR5028-3 direct dye is primarily used for the dyeing and direct printing of fabrics made from cotton, artificial viscose fibers, and other fibers. It can be employed for dyeing silk and silk fabrics as well. Additionally, it is suitable for dyeing leather, paper, disinfectants, cleaning agents, and other applications. Furthermore, this dye can be used in the production of peacock blue lake organic pigments.
