The most popular Vat Blue 4 for dyeing cotton
Product Specification
| Name | Vat Blue 4 |
| Other Name | Vat Blue RSN |
| Cas No. | 81-77-6 |
| Appearance | Black Blue Powder |
| Packing | 25kgs Kraft bag/carton box/Iron drum |
| Strength | 100% |
| Application | Used for dyeing cotton,paper,leather,silk and wool so on. |
Description
Vat Blue 4 is a Black Blue Powder.Insoluble in water, acetic acid, ethanol, pyridine, xylene, toluene, slightly soluble in chloroform (heat), o-chlorophenol, quinoline. Brown in concentrated sulfuric acid and produce blue precipitates after dilution. In the insurance powder alkaline solution is blue, in the acid solution is red blue.Mainly used for cotton dyeing and cotton printing，especially when printing deep thick pattern.We can adjust the Tones and Quality according to the customer’s requirements.
Product character
It has good dye shifting and evenness,Three color shades for your choice. Our basic color is blueish and you could add additives to blue-reddish color and reddish color. Color is more bright. It is the further trends of Denim market. After dying water is clean with no dye left. No waste water, reduce costs of pollution charge fee. Easy in usage.Brown in concentrated sulfuric acid and produce blue precipitates after dilution. In the insurance powder alkaline solution is blue, in the acid solution is red blue.
Main features
A. Strength：100%
B. Black Blue powder，Good solubility in water
C.Good deep dyeing quality, suitable for dyeing of super fine fiber. Have perfect compatibility and larger scope choice of different colors.
D. Providing for bright shades, these have storing adherence to fabric molecules without support from other chemicals. High thermal stability; Good light fastness and weather fastness;Bright colors and high color strength; High brightness and tinting-strength.
E. It has good dye shifting and evenness, high dyeing rate.
Storage & Transportation
The product must be stored in shade, dry & well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.
Application
It is mostly used for dyeing cotton，It can also be used for dyeing paper, silk and wool so on.
Packing
25 KGS Carton box/25 KGS Iron drums
