摘要 |
The present invention relates to a bifunctional red reactive dye and more particularly, to the bifunctional red reactive dye with monochlorotriazine and acetoxyethylsulfone as reactive groups expressed by formula (I), wherein, M is alkaline metal atom, which provides excellent combination of properties in that 1) the introduction of aminophenyl- beta -acetoxyethylsulfone group to the dye may minimize the loss of dye, since its low solubility to water lessens the amount of the remaining solution during filtration, 2) an easier salting-out process requires a smaller amount of salt during the process so that the costs for the treatment of waste water may be significantly reduced, and 3) a better dyeing yield with enhanced substantivity and better brightness in color. |
申请人 |
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY;OH, SEA, WHA;KANG, MYEONG, NYEO;SHIN, SEUNG, RIM;KIM, TAE, KYUNG;SONG, MI, KYOUNG |
发明人 |
OH, SEA, WHA;KANG, MYEONG, NYEO;SHIN, SEUNG, RIM;KIM, TAE, KYUNG;SONG, MI, KYOUNG |