Guangdong carbon black manufacturers, "carbon black particles," the degree of light scattering, with the decrease of particle size decreases, in addition to affecting the light effects, but also affect the color, the reasons are as follows: When the light through a primary color is black When colored, the shortwave blue light has a stronger scattering effect than the longwave red light.

The thinner the carbon black, the more pronounced this effect. The red component is slightly deeper into the colored layer due to its less scattering loss. The overall blue light scattering is strong, in the opposite direction, the back of the scattering is also strong, so reflected from the colored layer.

When observing the reflection process, the appearance of blue shades that are colored with fine carbon black gives a feeling of blackness higher. If the carbon black is coarse, a brown hue accordingly.

When observing the transmission process, the same colored layer (not completely transparent film) had the opposite color tone relationship, and as the particle size decreased, the blue light with stronger scattering passed through the colored layer to a lesser extent, that is, the blue light passed through the colored Layers to the other side less ingredients, wear out from the other side. Thus, due to the lack of blue light on the observed side, the colored layer appears brownish when observed during transmission.

Guangdong carbon black manufacturers analysis, when the titanium dioxide gray (gray tone) when the situation, and observe the primary color in the transmission process similar to the state of color, light in black pigment plastic film containing white pigment back and forth scattering, the smaller Particle size carbon black will cause the blue light scattering in the visible light to be stronger, so that more of the remaining red light will be transmitted therethrough, giving a grayish yellow hue. On the contrary, Especially the coarser lamp black, you will get gray with a blue hue.