Vat Violet 9 Vat Violet 3B
Dynathrene is our brand of Vat dyes which offer excellent fastness to washing, light and bleaching for cellulosic fiber.
1. Molecular formula: C34H15BrO2 |
2. Molecular weight:535.39 |
3. Structure formula: |
4. CAS NO.:1324-17-0 |
5. Appearance: Violet powder |
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. |
Vat Violet 9 Vat Violet 3B
Properties and Applications:
brilliant blue purple. Deep purple powder. Insoluble in water, slightly soluble in 1, 2, 3, 4 – Tetrahydronaphthalene and Xylene. In concentrated sulfuric acid for green, dilution after dark purple precipitation. Alkaline reduction leuco for blue; Acid reduction leuco for blue-ray dark red. Used for cotton fabric dyeing, for brilliant blue purple. For cotton high affinity, poor levelness. Also can be used for cotton fabric of direct, color discharge and resist printing, but also can be used for viscose and silk dyeing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 2 | 5 | 5-6 | 4 | 4-5 | 4-5 | 5 |
| AATCC | 2-3 | 5 | 6 | 3-4 | 4 | ||
Vat Violet 9 Vat Violet 3B
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