Vat Violet 3 Vat Violet B
Dynathrene is our brand of Vat dyes which offer excellent fastness to washing, light and bleaching for cellulosic fiber.
Vat Violet 3 Vat Violet B Soluble Vat Violet 3
1. Molecular formula: C20H14Cl2O2S2 |
2. Molecular weight421.36 |
3. Structure formula: |
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4. CAS NO.:2379-75-1 |
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. |
Properties and Applications: brilliant red light purple. Red purple powder. Insoluble in water, ethanol and general organic solvent. In concentrated sulfuric acid for SAP green, dilution after pale red light purple. Alkaline reduction leuco for yellow; Acid reduction leuco colorless. This product is light embrittlement phenomenon. Mainly used in cotton yarn dyeing indigo with bromine, etc. Tile Black Vat Brown RRD use. Rubbing fastness, but also for direct printing of cotton fabrics, resist printing and discharge printing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4 | 5 | 5 | 3 | 4 | 4-5 | 5 |
| AATCC | 5 | 5 | 5 | 3-4 | 4 | ||
Vat Violet 3 Vat Violet B
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