The color of pigment carbon black has a certain relationship with the size of the particles, the surface structure of the particles and the number of components of the adsorbed volatile substances.
The blackness and brightness of carbon black are often based on its high dispersion performance. Otherwise, the blackness and brightness of carbon black with fine particle size cannot be displayed.
The color of carbon black powder in the dry state is inconsistent with the color of carbon black dispersed in paint, because the blackness of carbon black has a great relationship with its dispersion. To compare the blackness, disperse carbon black in the paint base to make a color paste, then mix it into a color paint, and then make a coating test piece for comparison.
The color of pigment carbon black is also one of the important indicators relative to the carbon black used.
Usually the hue of carbon black is formed by three primary colors, namely red, yellow and blue. Lamp black and furnace black have a very distinct blue hue. When mixing gray paint, furnace black is often used.
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