COMPOSITE OXIDE BLACK PIGMENT AND METHOD FOR PRODUCING SAME

摘要

To provide a Cu-Mn-Fe-based complex inorganic oxide black pigment having a more vivid bluish hue than a Cu-Mn-Fe-based complex inorganic oxide black pigment obtained by a conventional wet method. A Cu-Mn-Fe-based complex inorganic oxide black pigment having a more vivid bluish hue is disclosed. The complex inorganic oxide black pigment has a spinel structure composed of oxides of copper, manganese and iron as main constituent metals, the molar ratio of copper/manganese/iron is in a range of 3 to 8/5 to 10/1, at least one divalent metal element other than the main constituent metals has been introduced, and the molar ratio of (copper + the divalent metal element)/(manganese + iron) is in a range of 1 to 1. 6/2 . A production process of the black pigment is also disclosed.