| 摘要 |
Black disazo dyes of general formula (V)
wherein
A is a moiety of formula (VI)
or of formula (VII)
and
B is a moiety of formula (VIII)
or of formula (IX)
and wherein M, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , R 20 , R 21, R 22 , R 23 and R 24 are as defined in the specification, are excellent black dyes for dying and printing cellulose containing materials and textile materials and, in particular, for the preparation of recording liquids for ink jet printing and for writing utensils. |
