Patent ID: 7971986

Claim:
An inkjet ink comprising an IR-absorbing dye of formula (A): wherein M is selected from the group consisting of: Si(A 1 )(A 2 ), Ge(A 1 )(A 2 ), Ga(A 1 ), Mg, Al(A 1 ), TiO, Ti(A 1 )(A 2 ), ZrO, Zr(A 1 )(A 2 ), VO, V(A 1 )(A 2 ), Mn, Mn(A 1 ), Fe, Fe(A 1 ), Co, Ni, Cu, Zn, Sn, Sn(A 1 )(A 2 ), Pb, Pb(A 1 )(A 2 ), Pd and Pt; A 1 and A 2 are axial ligands, which may be the same or different, and are selected from the group consisting of: —OH, halogen and —OR 3 ; R 1 and R 2 may be the same or different and are selected from the group consisting of: hydrogen, hydroxyl, C 1-12 alkyl, C 1-12 alkoxy, amino, C 1-12 alkylamino, di(C 1-12 alkyl)amino, halogen, cyano, thiol, C 1-12 alkylthio, nitro, carboxy, C 1-12 alkylcarbonyl, C 1-12 alkoxycarbonyl, C 1-12 alkylcarbonyloxy and C 1-12 alkylcarbonylamino; R 3 is a selected from the group consisting of: C 1-12 alkyl, C 5-12 aryl, C 5-12 arylalkyl and Si(R x )(R y )(R z ); R x , R y and R z may be the same or different and are selected from C 1-12 alkyl, C 5-12 aryl, C 5-12 arylalkyl, C 1-12 alkoxy, C 5-12 aryloxy or C 5-12 arylalkoxy; W is —SO 3 H or a water-soluble salt thereof; and each m is independent selected from 0, 1 or 2.