| abstract |
Phthalocyanine compounds of Formula (1) have utility as colorants in inks for ink-jet printing, where Formula (1) represents: MvPc(COR1)4 in which: M represents a metal or H; Pc represents a phthalocyanine nucleus; R1 represents OR?2; or NR3R4¿; where R?2, R3 and R4¿ independently represent H or optionally substituted C¿1-30?carbyl; and v is the valence of Pc divided by the valence of M; provided that R?1¿ is other than amino. |