| Molecular Formula | C54H29N9O22S6Na6Cu2 |
| Physical and Chemical Properties | Chemical properties blue-gray powder. Soluble in water. Good high temperature stability. |
| Use | Use for one-bath dyeing of polyester/cotton, polyester/viscose blended fibers and fabrics. |
use
P> direct blended blue D-3GL is suitable for one-bath dyeing of polyester-cotton and polyester-viscose blended fibers, and is also suitable for high-temperature jet dyeing of polyester-viscose medium and long fibers, making wool-like fabrics more "hairy. Especially suitable for one-bath one-step dyeing. This product is a blue variety with bright green light. It is the main dye for dyeing navy blue and is also one of the three primary color varieties. It is often combined with direct blended yellow D-3RNL and red jade D-BLL to dye navy blue, gray, camel and other colors.production method
Amino C acid, p-kresidine (2-methoxy-5-methylaniline), bis-j acid (5,5 '-dihydroxy -7,7'-disulfonic acid -2,2 '-diphenylamine) are used as raw materials. First, the amino C acid is diazotized, coupled with p-kresidine, then the second diazotization is carried out, coupled with bis-j.