High electrical insulating azo black pigment, production process, the colored composition, the colored methods and colored articles such

摘要

The present invention, the pigment itself shows a high electrical insulating property, a azo black pigment can give a visible light shielding properties and infrared transmission properties of the optical characteristics by using this, one or more in the molecule and azo group, at least one 2-hydroxy-benzo -11H- introduced from coupling component [a] - has a molecular structure having a carbazole-3-carboxylic acid amide residue, the volume resistivity of the pigment itself is 10 it is ^{10 Ω} · cm or more, and, the average particle diameter to provide high electrical insulation, azo-based black pigment, which is a 10nm~200nm. Azo-based black pigment provided by the present invention, in addition to its manufacturing process is simple, including the high electrical resistance of the pigment itself, excellent physical properties, showed a robust, black matrix Ya color display , including such as a back sheet for solar cell module, it is applicable to various applications such as coating of the electronic circuit and conductive lines, their use is expected.