Vat Black 8
Dynathrene is our brand of Vat dyes which offer excellent fastness to washing, light and bleaching for cellulosic fiber.
Vat Black 8
1.Molecular formula: C45H19N3O4 |
2. Molecular weight:665.65 |
3. Structure formula: |
4. CAS NO.:2278-50-4 |
5. Appearance: Blackpowder |
6. Specification: Strength 100% |
7. Usage: Mainly used in dyeing of cotton and silk. |
8. Packing, storage and transportation: Packed with 25KG cartons, allows to be tansported by the general means. |
Properties and Applications:
blue light grey. Black powder. Insoluble in water, Acetone, Etanol, Toluene and Chloroform, slightly soluble in 2 – Chlorophenol, Pyridine . In concentrated sulfuric acid to have yellow green: alkaline reduction leuco for blue light green; Acid reduction leuco for red brown: mainly used in the cotton fabric jig dyeing, dyeing and suspended pad dyeing, also used for Fiber/cotton, polyester-cotton blended fabric two bath set of dye dyeing. Suitable for suspension pad dyeing deep, shallow gray, and can spell dye all kinds of noise. Its main leuco dye yarn, can also be used to viscose and silk dyeing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4 | 4-5 | 7 | 4 | 5 | 4 | 5 |
Vat Black 8