Orientation of aluminum pigments

When the flake pigment is parallel to the surface of the film, the best effect is achieved. Parallel orientation difference meeting.
Cause "turbidity" or diffuse reflection. The orientation of flake pigments is related to the formula and construction conditions. Solvent.
Volatilization causes the shrinkage of the wet film, and the aluminum pigment is finally pressed into a horizontal directional position.
The better the effect, so the more fast volatile strong solvent in the coating formula, the lower the solid content during construction.
The better the effect, but make sure that the film just sprayed is slightly moist and smooth. The higher the solvent content in the coating, the higher the content of the solvent.
The stronger the seed effect. This explains the orientation of flake pigments. Therefore, the optical properties of low solid content coatings.
The quality is better than that of high solid paint. The volatilization of the solvent will cause a strong eddy current in the wet film.
If the agent volatilizes too slowly, the so-called Bernard vortex will be formed, which will cause the aluminum sheet to turn up and down with the Bernard vortex.
Roll, random flow and chaotic arrangement, resulting in black and white film, a large area of spots. Hinder the parallelism of aluminum pigments.
Orientation. Resins can be used to promote the rapid volatilization of solvents (such as ester butyl cellulose cab), and some auxiliaries are also used.
They can fix flakes of paint. It has been reported that wax dispersions have "spacer effect" and surfactants.
There are similar functions. However, its function should be tested before use.