| abstract |
The novel phthalocyanine cyan dye of the formula (I) n nin which nM represents an ion of a metal selected from Cu, Fe, Co, Mg, Mn, Sn and Ni, Xnrepresents a linear compound having 6-10 atoms in length containing C, O, and/or N, n R 1 represents pyridine, imidazole, sulfide, thiol, phenol, benzene, benzaldehyde,npyrimidine, pyrizine, triazine, imidazole, thiazole, oxazole, pyridone, pyrone, pyrole,nthiophene, furan, pyran, dioxane, and morpholine, and derivatives thereof, n R 2 represents an atom or chemical group that imparts water solubility to thenphthalocyanine cyan dye, and ny and z each independently represent an integer of 1 to 3 satisfying the relation ofn2≤y+z≤4. n Ink formulations containing at least one dye of the formula (I) and methods for ink jetnprinting with inks containing the phthalocyanine cyan dyes of formula (I). |