When using carbon black color matching, you should pay attention to the problem of carbon black tone. The carbon black has a small particle size and a bottom color of blue light; the carbon black has a large particle size and the bottom color is brown. However, when the white color is adjusted with titanium dioxide, the color tone is exactly the opposite, with a small carbon black having a yellow color tone; and a large particle size carbon black, a blue color gray is obtained. Therefore, in the preparation of various light-colored grays, if the color of the carbon black is not used and the color is adjusted by the pigment, a great trouble is encountered.
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