Vat Brown 3 Vat Brown R
Dynathrene is our brand of Vat dyes which offer excellent fastness to washing, light and bleaching for cellulosic fiber.
Vat Brown 3 Vat Brown R Soluble Vat Brown 3
1. Molecular formula:C42H23N3O6 |
2. Molecular weight:665.65 |
3. Structure formula: |
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4. CAS NO.:131-92-0 |
5. Appearance: Brown 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 Brown 3 Vat Brown R
Properties and Applications:
brown. Deep red powder. Insoluble in water and Etanol, slightly soluble in Xylene for bordeaux red solution. In concentrated sulfuric acid for dark wine red, dilution to red light brown, flocks. Alkaline reduction leuco body for the color red; Acid reduction leuco for yellow brown. Is light brittle dye. To cotton affinity is poorer, less used in cotton dyeing. Suitable for direct printing, resist printing and aniline black color resist, also suitable for shallow, color of discharge. Suitable for cotton knits dyeing, more suitable for silk printing. But printing and dyeing fabric in sunlight exposure easy appear fiber brittle damage phenomenon. Can be used for viscose and wool dyeing, can also be processed into Organic Pigment.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 5 | 5 | 7 | 4-5 | 4-5 | 5 | 5 |
| AATCC | 5 | 5 | 7-8 | 4-5 | 4-5 | ||
Vat Brown 3 Vat Brown R