Patent ID: 7132012
Filing Date: 2006-11-07
Classification: C09B,C09D

Abstract:
1. An ink comprising a phthalocyanine compound represented by formula (I): where X A 1 to A 4 each independently represents an atomic group necessary for forming an aromatic ring or a heterocyclic ring with X 1 to X 4 and Y 1 to Y 4 , with the proviso that all of four rings containing each of A, X and Y are not aromatic rings at the same time; whereas, when all of the four rings containing each of A, X and Y are pyridine rings at the same time, a pyridine ring in which any one of atoms adjacent to each of X and Y in the pyridine ring is a nitrogen atom is excluded; whereas, when all of the four rings containing each of A, X and Y are pyrazine rings at the same time, a pyrazine ring in which both of atoms adjacent to each of X and Y in the pyrazine ring are nitrogen atoms is excluded; whereas, A 1 to A 4 each may also have a substituent, with the proviso that at least one of A 1 to A 4 or at least one of the substituents of A 1 to A 4 has a substituent with two or more carbon atoms, and the total sum of carbon atoms of the substituents of A 1 to A 4 is 8 or more, and an ionic hydrophilic group is not contained in a molecule; and M represents a hydrogen atom, a metallic element, a metal oxide, a metal hydroxide or a metal halide.