| abstract |
The present invention relates to a black pigment containing cupric oxide and containing no harmful elements, having excellent infrared reflectivity, and excellent in acid resistance and paint stability. I will provide a. SOLUTION: Core particles of a mixture and / or composite of cupric oxide and a second component, an extender pigment, a white pigment, and an iron oxide having a solar reflectance of 10% or more. And a composite black pigment obtained by coating the surface of the core particles with a surface treatment agent, wherein the molar ratio of cupric oxide to the pigment of the second component is 0.1: 0.9 to 0.95. : 0.05, the coating layer has acid resistance, the coating amount is 0.1 to 10% by weight based on the core particles, has excellent acid resistance, and the solar reflectance measured according to JIS R3106 is 20%. That's it. [Selection figure] None |