| abstract |
An ink containing less than 5% inorganic compounds which comprises a liquid medium and a dye of the Formula (1): <IMAGE> (1) wherein: D1 and D2 are each independently a chromophore of the azo series; R1, R2, R3 and R4 are each independently H or optionally substituted alkyl; B is a labile atom or group, hydroxy, amino or an ether, thioether or amine group; and X1 and X2 are each independently H, halo, alkyl, alkoxy, acylamino, ureido, nitro, carboxy or sulpho. The inks may be used in ink jet printing either alone or with specified xanthene dyes. |