Laser aluminum paste is a high-grade metal color-changing pigment, which is made of metal aluminum flakes through special processing, and the appearance is silver-gray paste. When the paint and ink configured with laser aluminum paste are applied to the smooth and flat surface of the product, under the condition of light, through the reflection and diffraction of light, it will produce bright and vivid color effects, and can change with the observation angle. Shows different color effects, the stronger the light, the stronger the color, and the brighter the color.
With the development of the coatings market in many aspects, paints and inks made of laser aluminum pastes are increasingly welcomed and sought after by the market, and the applications of laser aluminum pastes are becoming more and more extensive and diversified. After Sunflower Chemical Group recognized the needs of users, it continued to develop laser aluminum paste products with different effects to meet the ever-changing market needs. The particle size of our laser aluminum paste "S11251A" is 8μm, which shows a very delicate color change effect in time application. Compared with the traditional rainbow paste, it has no metal grain and has a very good imitation electroplating effect. It presents a faint color effect under strong light, and a strong and delicate imitation electroplating colorful effect under strong light. It can be applied to various production processes such as spraying, gravure printing, and silk printing.
The application effect of the laser aluminum paste is inseparable from the choice of resin, the proportion of the added amount of the laser aluminum paste, the operation method and other factors. The following briefly explains the application points of the laser aluminum paste.
The choice of resin plays a very important role in the strength of the laser. The resin should be a mirror silver resin or anti-plating silver resin with low acid value, high viscosity, and low solid content. Choosing a suitable resin can promote the dispersion and orientation of the metal aluminum component. Arrangement, the better the arrangement, the better the laser effect.
The amount of laser paste added requires comprehensive consideration of factors such as production process, hiding power, tinting power, particle size, system viscosity, etc., and determine the actual addition ratio of laser paste based on actual effects and actual needs. Based on years of experience, the following is the addition ratio of laser aluminum paste in different production processes for reference:
| Production Process: | Add ratio |
| Spraying | 3-5% |
| Gravure | 9-12% |
| Silk screen | 20-25% |
The operation of laser paint should choose a smooth and flat surface. The smoother and flat the sprayed surface is, the better the arrangement of metal aluminum and the better the colorful effect. The application of laser paint is generally divided into bottom layer, middle layer and surface layer. The conventional primer is sprayed first, and then various colors of base paint are sprayed. Generally, the darker the primer can better set off the rainbow color effect of the laser paint layer. , Wait for it to dry completely before spraying the laser paint. Finally, make sure that the laser layer is completely dry before finishing. The solvent of the top paint must not be too strong, otherwise the laser layer will be burned and the laser effect will disappear or weaken.
When spraying, the spray paint needs to be adjusted to the appropriate spraying process, the oil output is turned to the minimum, and the atomization is turned to the maximum, otherwise the metal particles will accumulate and the colorful effect of the laser will become weak. The laser paint should be sprayed with a single layer, and can not be mixed with others.