Use | 1-amino-8-naphtho-3, 6-two sulfonic acid sodium 4-amino benzene sulfonic acid sodium melamine reactive dark blue M-2GE is suitable for cotton, viscose fiber exhaustion dyeing, especially suitable for polyester cotton, polyester and disperse dyes one bath dyeing. Dyeing temperature 40 degrees Celsius, fixation temperature 60 degrees Celsius. |
production method | p-aminobenzenesulfonic acid, H acid, 2, 4-diaminobenzenesulfonic acid, cyanuric chloride, M-(2-sulfated ethyl sulfone) aniline as raw material, first 2, 4-diaminobenzenesulfonic acid and cyanuric chloride for the first condensation, and then diazotization, and H acid for the first time coupling, then, P-aminobenzenesulfonic acid was diazotized, and a second coupling with H acid was carried out, and finally, M (2-sulfated Ester ethyl sulfone group) aniline was added for a second condensation to obtain the product. After salting out, filtration, drying to obtain the finished product.. |