| abstract |
The invention discloses a composite dark black reactive dye. It is made by mixing three reactive dyes A, B, and C. The mass percentages of the three reactive dyes A, B, and C are: dye A accounts for 50-80%; dye B accounts for 10-40%; dye C accounts for 5-30% %; the remaining ingredients are additives, and the general structural formulas of A, B, and C are shown in (1), (2), and (3) respectively. The invention provides a kind of high dyeing rate and color fixing rate, high alkali resistance, high lifting force, low directness, good compatibility and easy washing, and excellent compounding properties with wide applicability Reactive black dye. Ensure the consistency of color before and after pad dyeing. Because of its good levelness, the dye is especially suitable for dyeing cellulose fibers, protein fibers and polyamide fibers. |