The most cost-effective Vat Black 27 For Dyeing polyester-mixed cotton cloth
Product Specification
| Name | Vat Black 27 |
| Other Name | Vat Olive R |
| Cas No. | 2379-81-9 |
| Appearance | Black Powder |
| Packing | 25KGS PP Bag/Kraft Bag/Carton Box/Iron Drum |
| Strength | 100% |
| Application | Mainly used for dyeing cotton, viscose fiber, can also be used for leather, silk and so on. |
Description
Black powder. Insoluble in water, acetone, ethanol, toluene, xylene, slightly soluble in chloroform, pyridine, soluble in o-chlorophenol.
Product character
Physico - chemical property: VAT Black 27 is a chemical with the formula C42H23N3O6. Insoluble in water, acetone, ethanol, toluene, xylene, slightly soluble in chloroform, pyridine, soluble in o-chlorophenol. Red in concentrated sulfuric acid, which produces a fluorescent olivy-green precipitate after dilution. In the insurance powder alkaline solution is reddish brown, in the acid solution is yellow light brown.
Main features
The main features of Vat Black 27 include:
Ⅰ. VAT black 27 is mainly used for dyeing cotton fiber, with good evenness and affinity. It can also be used for dyeing viscose fiber, silk, cotton and polyester cotton with disperse dye bath dyeing. VAT olive R is used for color matching, such as dyeing gray, brown, dark green, dark blue and other colors.
Ⅱ. It is mainly used for dyeing cotton, viscose and other fibers. Dyeing methods mainly include chromophyte dyeing (immersion dyeing) and suspension dyeing (rolling dyeing) : dyed fabrics have good wet fastness, most dyes have high fastness to sunlight, and chromatic acid can be dissolved in alkaline solution and adsorbed by fibers; The cryptochromic bodies (soluble sodium salts of dyes) adsorbed on the fibers return to the original insoluble carbon base (ligand or ketone bodies) state under the action of acids and oxidants, and are fixed in the fibers.
Ⅲ.Vat Black 27 bright color, light fastness, alkali resistance, wash resistance, sweat resistance and other fastness are very good, but not chlorine bleaching resistance.
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
Mainly dyed with cotton and polyester-cotton blended fabric; Vinylon can also be painted.
Packing
25KGS Cartons Box/25 KGS Iron Drums and so on
