Vat Brown 1 Vat Brown BR
Dynathrene is our brand of Vat dyes which offer excellent fastness to washing, light and bleaching for cellulosic fiber.
Vat Brown 1 Vat Brown BR Soluble Vat Brown 1
1. Molecular formula: C42H18N2O6 |
2. Molecular weight:646.60 |
3. Structure formula: |
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4. CAS NO.:2475-33-4 |
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 1 Vat Brown BR
Properties and Applications:
red light brown. Dark brown powder. Slightly soluble in hot 1, 2, 3, 4 – Tetrahydronaphthalene and thermal Xylene, insoluble in cold Xylene. In concentrated sulfuric acid to Copenhagen green, dilution after brown precipitation. Alkaline reduction leuco for yellow brown; Acid reduction leuco for dark olive. Mainly used for cotton, hemp, silk and viscose dyeing and printing, cotton yarn dyeing common varieties. Used for polyester/cotton blended fabric two bath dyeing of polyester with little color. The leuco used for dyeing cotton knitwear.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 5 | 4-5 | 7 | 4-5 | 4-5 | 5 | 5 |
| AATCC | 5 | 5 | 8 | 4-5 | 4-5 | ||
Vat Brown 1 Vat Brown BR
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