A method for the preparation of crystalline oxytitaniumphthalocyanine

摘要

A process for producing crystalline oxytitanium phthalocyanine showing strong peaks in CuKα characteristic X-ray diffraction at Bragg angles 2ϑ ±0.2° of 9.0°, 14.2°, 23.9°, and 27.1°, which comprises a dispersion treatment of the aqueous paste of oxytitanium phthalocyanine in an ether type compound.