abstract |
A dye mixture comprises (A) at least one dye of formula (I) wherein X is Cl, Br or I; Q is C1-4alkyl; and each of R?1 and R2¿ independently, is C¿1-4?alkyl or C1-4alkenyl; and (B) at least one dye of formula (II) wherein Q?1¿ is C¿1-4?alkyl; and each of R?1 and R2¿ independently, is C¿1-4?alkyl or C1-4alkenyl. |